diff options
106 files changed, 64 insertions, 43872 deletions
diff --git a/crypto/telnet/arpa/telnet.h b/crypto/telnet/arpa/telnet.h deleted file mode 100644 index c937f03..0000000 --- a/crypto/telnet/arpa/telnet.h +++ /dev/null @@ -1,347 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)telnet.h 8.2 (Berkeley) 12/15/93 - * $FreeBSD$ - */ - -#ifndef _ARPA_TELNET_H_ -#define _ARPA_TELNET_H_ - -/* - * Definitions for the TELNET protocol. - */ -#define IAC 255 /* interpret as command: */ -#define DONT 254 /* you are not to use option */ -#define DO 253 /* please, you use option */ -#define WONT 252 /* I won't use option */ -#define WILL 251 /* I will use option */ -#define SB 250 /* interpret as subnegotiation */ -#define GA 249 /* you may reverse the line */ -#define EL 248 /* erase the current line */ -#define EC 247 /* erase the current character */ -#define AYT 246 /* are you there */ -#define AO 245 /* abort output--but let prog finish */ -#define IP 244 /* interrupt process--permanently */ -#define BREAK 243 /* break */ -#define DM 242 /* data mark--for connect. cleaning */ -#define NOP 241 /* nop */ -#define SE 240 /* end sub negotiation */ -#define EOR 239 /* end of record (transparent mode) */ -#define ABORT 238 /* Abort process */ -#define SUSP 237 /* Suspend process */ -#define xEOF 236 /* End of file: EOF is already used... */ - -#define SYNCH 242 /* for telfunc calls */ - -#ifdef TELCMDS -const char *telcmds[] = { - "EOF", "SUSP", "ABORT", "EOR", - "SE", "NOP", "DMARK", "BRK", "IP", "AO", "AYT", "EC", - "EL", "GA", "SB", "WILL", "WONT", "DO", "DONT", "IAC", - 0 -}; -#else -extern char *telcmds[]; -#endif - -#define TELCMD_FIRST xEOF -#define TELCMD_LAST IAC -#define TELCMD_OK(x) ((unsigned int)(x) <= TELCMD_LAST && \ - (unsigned int)(x) >= TELCMD_FIRST) -#define TELCMD(x) telcmds[(x)-TELCMD_FIRST] - -/* telnet options */ -#define TELOPT_BINARY 0 /* 8-bit data path */ -#define TELOPT_ECHO 1 /* echo */ -#define TELOPT_RCP 2 /* prepare to reconnect */ -#define TELOPT_SGA 3 /* suppress go ahead */ -#define TELOPT_NAMS 4 /* approximate message size */ -#define TELOPT_STATUS 5 /* give status */ -#define TELOPT_TM 6 /* timing mark */ -#define TELOPT_RCTE 7 /* remote controlled transmission and echo */ -#define TELOPT_NAOL 8 /* negotiate about output line width */ -#define TELOPT_NAOP 9 /* negotiate about output page size */ -#define TELOPT_NAOCRD 10 /* negotiate about CR disposition */ -#define TELOPT_NAOHTS 11 /* negotiate about horizontal tabstops */ -#define TELOPT_NAOHTD 12 /* negotiate about horizontal tab disposition */ -#define TELOPT_NAOFFD 13 /* negotiate about formfeed disposition */ -#define TELOPT_NAOVTS 14 /* negotiate about vertical tab stops */ -#define TELOPT_NAOVTD 15 /* negotiate about vertical tab disposition */ -#define TELOPT_NAOLFD 16 /* negotiate about output LF disposition */ -#define TELOPT_XASCII 17 /* extended ascic character set */ -#define TELOPT_LOGOUT 18 /* force logout */ -#define TELOPT_BM 19 /* byte macro */ -#define TELOPT_DET 20 /* data entry terminal */ -#define TELOPT_SUPDUP 21 /* supdup protocol */ -#define TELOPT_SUPDUPOUTPUT 22 /* supdup output */ -#define TELOPT_SNDLOC 23 /* send location */ -#define TELOPT_TTYPE 24 /* terminal type */ -#define TELOPT_EOR 25 /* end or record */ -#define TELOPT_TUID 26 /* TACACS user identification */ -#define TELOPT_OUTMRK 27 /* output marking */ -#define TELOPT_TTYLOC 28 /* terminal location number */ -#define TELOPT_3270REGIME 29 /* 3270 regime */ -#define TELOPT_X3PAD 30 /* X.3 PAD */ -#define TELOPT_NAWS 31 /* window size */ -#define TELOPT_TSPEED 32 /* terminal speed */ -#define TELOPT_LFLOW 33 /* remote flow control */ -#define TELOPT_LINEMODE 34 /* Linemode option */ -#define TELOPT_XDISPLOC 35 /* X Display Location */ -#define TELOPT_OLD_ENVIRON 36 /* Old - Environment variables */ -#define TELOPT_AUTHENTICATION 37/* Authenticate */ -#define TELOPT_ENCRYPT 38 /* Encryption option */ -#define TELOPT_NEW_ENVIRON 39 /* New - Environment variables */ -#define TELOPT_TN3270E 40 /* RFC2355 - TN3270 Enhancements */ -#define TELOPT_CHARSET 42 /* RFC2066 - Charset */ -#define TELOPT_COMPORT 44 /* RFC2217 - Com Port Control */ -#define TELOPT_KERMIT 47 /* RFC2840 - Kermit */ -#define TELOPT_EXOPL 255 /* extended-options-list */ - - -#define NTELOPTS (1+TELOPT_KERMIT) -#ifdef TELOPTS -const char *telopts[NTELOPTS+1] = { - "BINARY", "ECHO", "RCP", "SUPPRESS GO AHEAD", "NAME", - "STATUS", "TIMING MARK", "RCTE", "NAOL", "NAOP", - "NAOCRD", "NAOHTS", "NAOHTD", "NAOFFD", "NAOVTS", - "NAOVTD", "NAOLFD", "EXTEND ASCII", "LOGOUT", "BYTE MACRO", - "DATA ENTRY TERMINAL", "SUPDUP", "SUPDUP OUTPUT", - "SEND LOCATION", "TERMINAL TYPE", "END OF RECORD", - "TACACS UID", "OUTPUT MARKING", "TTYLOC", - "3270 REGIME", "X.3 PAD", "NAWS", "TSPEED", "LFLOW", - "LINEMODE", "XDISPLOC", "OLD-ENVIRON", "AUTHENTICATION", - "ENCRYPT", "NEW-ENVIRON", "TN3270E", "CHARSET", "COM-PORT", - "KERMIT", - 0 -}; -#define TELOPT_FIRST TELOPT_BINARY -#define TELOPT_LAST TELOPT_KERMIT -#define TELOPT_OK(x) ((unsigned int)(x) <= TELOPT_LAST) -#define TELOPT(x) telopts[(x)-TELOPT_FIRST] -#endif - -/* sub-option qualifiers */ -#define TELQUAL_IS 0 /* option is... */ -#define TELQUAL_SEND 1 /* send option */ -#define TELQUAL_INFO 2 /* ENVIRON: informational version of IS */ -#define TELQUAL_REPLY 2 /* AUTHENTICATION: client version of IS */ -#define TELQUAL_NAME 3 /* AUTHENTICATION: client version of IS */ - -#define LFLOW_OFF 0 /* Disable remote flow control */ -#define LFLOW_ON 1 /* Enable remote flow control */ -#define LFLOW_RESTART_ANY 2 /* Restart output on any char */ -#define LFLOW_RESTART_XON 3 /* Restart output only on XON */ - -/* - * LINEMODE suboptions - */ - -#define LM_MODE 1 -#define LM_FORWARDMASK 2 -#define LM_SLC 3 - -#define MODE_EDIT 0x01 -#define MODE_TRAPSIG 0x02 -#define MODE_ACK 0x04 -#define MODE_SOFT_TAB 0x08 -#define MODE_LIT_ECHO 0x10 - -#define MODE_MASK 0x1f - -/* Not part of protocol, but needed to simplify things... */ -#define MODE_FLOW 0x0100 -#define MODE_ECHO 0x0200 -#define MODE_INBIN 0x0400 -#define MODE_OUTBIN 0x0800 -#define MODE_FORCE 0x1000 - -#define SLC_SYNCH 1 -#define SLC_BRK 2 -#define SLC_IP 3 -#define SLC_AO 4 -#define SLC_AYT 5 -#define SLC_EOR 6 -#define SLC_ABORT 7 -#define SLC_EOF 8 -#define SLC_SUSP 9 -#define SLC_EC 10 -#define SLC_EL 11 -#define SLC_EW 12 -#define SLC_RP 13 -#define SLC_LNEXT 14 -#define SLC_XON 15 -#define SLC_XOFF 16 -#define SLC_FORW1 17 -#define SLC_FORW2 18 -#define SLC_MCL 19 -#define SLC_MCR 20 -#define SLC_MCWL 21 -#define SLC_MCWR 22 -#define SLC_MCBOL 23 -#define SLC_MCEOL 24 -#define SLC_INSRT 25 -#define SLC_OVER 26 -#define SLC_ECR 27 -#define SLC_EWR 28 -#define SLC_EBOL 29 -#define SLC_EEOL 30 - -#define NSLC 30 - -/* - * For backwards compatibility, we define SLC_NAMES to be the - * list of names if SLC_NAMES is not defined. - */ -#define SLC_NAMELIST "0", "SYNCH", "BRK", "IP", "AO", "AYT", "EOR", \ - "ABORT", "EOF", "SUSP", "EC", "EL", "EW", "RP", \ - "LNEXT", "XON", "XOFF", "FORW1", "FORW2", \ - "MCL", "MCR", "MCWL", "MCWR", "MCBOL", \ - "MCEOL", "INSRT", "OVER", "ECR", "EWR", \ - "EBOL", "EEOL", \ - 0 - -#ifdef SLC_NAMES -const char *slc_names[] = { - SLC_NAMELIST -}; -#else -extern char *slc_names[]; -#define SLC_NAMES SLC_NAMELIST -#endif - -#define SLC_NAME_OK(x) ((unsigned int)(x) <= NSLC) -#define SLC_NAME(x) slc_names[x] - -#define SLC_NOSUPPORT 0 -#define SLC_CANTCHANGE 1 -#define SLC_VARIABLE 2 -#define SLC_DEFAULT 3 -#define SLC_LEVELBITS 0x03 - -#define SLC_FUNC 0 -#define SLC_FLAGS 1 -#define SLC_VALUE 2 - -#define SLC_ACK 0x80 -#define SLC_FLUSHIN 0x40 -#define SLC_FLUSHOUT 0x20 - -#define OLD_ENV_VAR 1 -#define OLD_ENV_VALUE 0 -#define NEW_ENV_VAR 0 -#define NEW_ENV_VALUE 1 -#define ENV_ESC 2 -#define ENV_USERVAR 3 - -/* - * AUTHENTICATION suboptions - */ - -/* - * Who is authenticating who ... - */ -#define AUTH_WHO_CLIENT 0 /* Client authenticating server */ -#define AUTH_WHO_SERVER 1 /* Server authenticating client */ -#define AUTH_WHO_MASK 1 - -/* - * amount of authentication done - */ -#define AUTH_HOW_ONE_WAY 0 -#define AUTH_HOW_MUTUAL 2 -#define AUTH_HOW_MASK 2 - -#define AUTHTYPE_NULL 0 -#define AUTHTYPE_KERBEROS_V4 1 -#define AUTHTYPE_KERBEROS_V5 2 -#define AUTHTYPE_SPX 3 -#define AUTHTYPE_MINK 4 -#define AUTHTYPE_SRA 6 -#define AUTHTYPE_CNT 7 - -#define AUTHTYPE_TEST 99 - -#ifdef AUTH_NAMES -const char *authtype_names[] = { - "NULL", "KERBEROS_V4", "KERBEROS_V5", "SPX", "MINK", NULL, "SRA", - 0 -}; -#else -extern char *authtype_names[]; -#endif - -#define AUTHTYPE_NAME_OK(x) ((unsigned int)(x) < AUTHTYPE_CNT) -#define AUTHTYPE_NAME(x) authtype_names[x] - -/* - * ENCRYPTion suboptions - */ -#define ENCRYPT_IS 0 /* I pick encryption type ... */ -#define ENCRYPT_SUPPORT 1 /* I support encryption types ... */ -#define ENCRYPT_REPLY 2 /* Initial setup response */ -#define ENCRYPT_START 3 /* Am starting to send encrypted */ -#define ENCRYPT_END 4 /* Am ending encrypted */ -#define ENCRYPT_REQSTART 5 /* Request you start encrypting */ -#define ENCRYPT_REQEND 6 /* Request you end encrypting */ -#define ENCRYPT_ENC_KEYID 7 -#define ENCRYPT_DEC_KEYID 8 -#define ENCRYPT_CNT 9 - -#define ENCTYPE_ANY 0 -#define ENCTYPE_DES_CFB64 1 -#define ENCTYPE_DES_OFB64 2 -#define ENCTYPE_CNT 3 - -#ifdef ENCRYPT_NAMES -const char *encrypt_names[] = { - "IS", "SUPPORT", "REPLY", "START", "END", - "REQUEST-START", "REQUEST-END", "ENC-KEYID", "DEC-KEYID", - 0 -}; -const char *enctype_names[] = { - "ANY", "DES_CFB64", "DES_OFB64", - 0 -}; -#else -extern char *encrypt_names[]; -extern char *enctype_names[]; -#endif - - -#define ENCRYPT_NAME_OK(x) ((unsigned int)(x) < ENCRYPT_CNT) -#define ENCRYPT_NAME(x) encrypt_names[x] - -#define ENCTYPE_NAME_OK(x) ((unsigned int)(x) < ENCTYPE_CNT) -#define ENCTYPE_NAME(x) enctype_names[x] - -#endif /* !_TELNET_H_ */ diff --git a/crypto/telnet/libtelnet/auth-proto.h b/crypto/telnet/libtelnet/auth-proto.h deleted file mode 100644 index 6d3ba7f..0000000 --- a/crypto/telnet/libtelnet/auth-proto.h +++ /dev/null @@ -1,111 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)auth-proto.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - -#ifdef AUTHENTICATION - -Authenticator *findauthenticator(int, int); - -void auth_init(const char *, int); -int auth_cmd(int, char **); -void auth_request(void); -void auth_send(unsigned char *, int); -void auth_send_retry(void); -void auth_is(unsigned char *, int); -void auth_reply(unsigned char *, int); -void auth_finished(Authenticator *, int); -int auth_wait(char *); -void auth_disable_name(char *); -void auth_gen_printsub(unsigned char *, int, unsigned char *, int); -void auth_name(unsigned char *, int); -void auth_printsub(unsigned char *, int, unsigned char *, int); -int auth_sendname(unsigned char *, int); -void auth_encrypt_user(char *); -int auth_disable(char *); -int auth_enable(char *); -int auth_togdebug(int); -int auth_status(void); - -int getauthmask(char *, int *); - -#ifdef KRB4 -int kerberos4_init(Authenticator *, int); -int kerberos4_send(Authenticator *); -void kerberos4_is(Authenticator *, unsigned char *, int); -void kerberos4_reply(Authenticator *, unsigned char *, int); -int kerberos4_status(Authenticator *, char *, int); -void kerberos4_printsub(unsigned char *, int, unsigned char *, int); -#endif - -#ifdef KRB5 -int kerberos5_init(Authenticator *, int); -int kerberos5_send_mutual(Authenticator *); -int kerberos5_send_oneway(Authenticator *); -void kerberos5_is(Authenticator *, unsigned char *, int); -void kerberos5_reply(Authenticator *, unsigned char *, int); -int kerberos5_status(Authenticator *, char *, int level); -void kerberos5_printsub(unsigned char *, int, unsigned char *, int); -#endif - -#ifdef SRA -int sra_init(Authenticator *, int); -int sra_send(Authenticator *); -void sra_is(Authenticator *, unsigned char *, int); -void sra_reply(Authenticator *, unsigned char *, int); -int sra_status(Authenticator *, char *, int); -void sra_printsub(unsigned char *, int, unsigned char *, int); -#endif - -#endif diff --git a/crypto/telnet/libtelnet/auth.c b/crypto/telnet/libtelnet/auth.c deleted file mode 100644 index 4642655..0000000 --- a/crypto/telnet/libtelnet/auth.c +++ /dev/null @@ -1,623 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)auth.c 8.3 (Berkeley) 5/30/95"; -#endif /* not lint */ -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - - -#ifdef AUTHENTICATION -#define AUTH_NAMES -#include <sys/types.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <arpa/telnet.h> - -#include "encrypt.h" -#include "auth.h" -#include "misc-proto.h" -#include "auth-proto.h" - -#define typemask(x) ((x) > 0 ? 1 << ((x)-1) : 0) - -#ifdef KRB4_ENCPWD -extern krb4encpwd_init(); -extern krb4encpwd_send(); -extern krb4encpwd_is(); -extern krb4encpwd_reply(); -extern krb4encpwd_status(); -extern krb4encpwd_printsub(); -#endif - -#ifdef RSA_ENCPWD -extern rsaencpwd_init(); -extern rsaencpwd_send(); -extern rsaencpwd_is(); -extern rsaencpwd_reply(); -extern rsaencpwd_status(); -extern rsaencpwd_printsub(); -#endif - -int auth_debug_mode = 0; -static const char *Name = "Noname"; -static int Server = 0; -static Authenticator *authenticated = 0; -static int authenticating = 0; -static int validuser = 0; -static unsigned char _auth_send_data[256]; -static unsigned char *auth_send_data; -static int auth_send_cnt = 0; - -int auth_onoff(char *type, int on); -void auth_encrypt_user(char *name); - -/* - * Authentication types supported. Plese note that these are stored - * in priority order, i.e. try the first one first. - */ -Authenticator authenticators[] = { -#ifdef KRB5 -# ifdef ENCRYPTION - { AUTHTYPE_KERBEROS_V5, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL, - kerberos5_init, - kerberos5_send_mutual, - kerberos5_is, - kerberos5_reply, - kerberos5_status, - kerberos5_printsub }, -# endif /* ENCRYPTION */ - { AUTHTYPE_KERBEROS_V5, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY, - kerberos5_init, - kerberos5_send_oneway, - kerberos5_is, - kerberos5_reply, - kerberos5_status, - kerberos5_printsub }, -#endif -#ifdef KRB4 -# ifdef ENCRYPTION - { AUTHTYPE_KERBEROS_V4, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL, - kerberos4_init, - kerberos4_send, - kerberos4_is, - kerberos4_reply, - kerberos4_status, - kerberos4_printsub }, -# endif /* ENCRYPTION */ - { AUTHTYPE_KERBEROS_V4, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY, - kerberos4_init, - kerberos4_send, - kerberos4_is, - kerberos4_reply, - kerberos4_status, - kerberos4_printsub }, -#endif -#ifdef KRB4_ENCPWD - { AUTHTYPE_KRB4_ENCPWD, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL, - krb4encpwd_init, - krb4encpwd_send, - krb4encpwd_is, - krb4encpwd_reply, - krb4encpwd_status, - krb4encpwd_printsub }, -#endif -#ifdef RSA_ENCPWD - { AUTHTYPE_RSA_ENCPWD, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY, - rsaencpwd_init, - rsaencpwd_send, - rsaencpwd_is, - rsaencpwd_reply, - rsaencpwd_status, - rsaencpwd_printsub }, -#endif -#ifdef SRA - { AUTHTYPE_SRA, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY, - sra_init, - sra_send, - sra_is, - sra_reply, - sra_status, - sra_printsub }, - -#endif - { 0, 0, 0, 0, 0, 0, 0, 0 }, -}; - -static Authenticator NoAuth = { 0, 0, 0, 0, 0, 0, 0, 0 }; - -static int i_support = 0; -static int i_wont_support = 0; - -Authenticator * -findauthenticator(int type, int way) -{ - Authenticator *ap = authenticators; - - while (ap->type && (ap->type != type || ap->way != way)) - ++ap; - return(ap->type ? ap : 0); -} - -void -auth_init(const char *name, int server) -{ - Authenticator *ap = authenticators; - - Server = server; - Name = name; - - i_support = 0; - authenticated = 0; - authenticating = 0; - while (ap->type) { - if (!ap->init || (*ap->init)(ap, server)) { - i_support |= typemask(ap->type); - if (auth_debug_mode) - printf(">>>%s: I support auth type %d %d\r\n", - Name, - ap->type, ap->way); - } - else if (auth_debug_mode) - printf(">>>%s: Init failed: auth type %d %d\r\n", - Name, ap->type, ap->way); - ++ap; - } -} - -void -auth_disable_name(char *name) -{ - int x; - for (x = 0; x < AUTHTYPE_CNT; ++x) { - if (AUTHTYPE_NAME(x) && !strcasecmp(name, AUTHTYPE_NAME(x))) { - i_wont_support |= typemask(x); - break; - } - } -} - -int -getauthmask(char *type, int *maskp) -{ - int x; - - if (AUTHTYPE_NAME(0) && !strcasecmp(type, AUTHTYPE_NAME(0))) { - *maskp = -1; - return(1); - } - - for (x = 1; x < AUTHTYPE_CNT; ++x) { - if (AUTHTYPE_NAME(x) && !strcasecmp(type, AUTHTYPE_NAME(x))) { - *maskp = typemask(x); - return(1); - } - } - return(0); -} - -int -auth_enable(char *type) -{ - return(auth_onoff(type, 1)); -} - -int -auth_disable(char *type) -{ - return(auth_onoff(type, 0)); -} - -int -auth_onoff(char *type, int on) -{ - int i, mask = -1; - Authenticator *ap; - - if (!strcasecmp(type, "?") || !strcasecmp(type, "help")) { - printf("auth %s 'type'\n", on ? "enable" : "disable"); - printf("Where 'type' is one of:\n"); - printf("\t%s\n", AUTHTYPE_NAME(0)); - mask = 0; - for (ap = authenticators; ap->type; ap++) { - if ((mask & (i = typemask(ap->type))) != 0) - continue; - mask |= i; - printf("\t%s\n", AUTHTYPE_NAME(ap->type)); - } - return(0); - } - - if (!getauthmask(type, &mask)) { - printf("%s: invalid authentication type\n", type); - return(0); - } - if (on) - i_wont_support &= ~mask; - else - i_wont_support |= mask; - return(1); -} - -int -auth_togdebug(int on) -{ - if (on < 0) - auth_debug_mode ^= 1; - else - auth_debug_mode = on; - printf("auth debugging %s\n", auth_debug_mode ? "enabled" : "disabled"); - return(1); -} - -int -auth_status(void) -{ - Authenticator *ap; - int i, mask; - - if (i_wont_support == -1) - printf("Authentication disabled\n"); - else - printf("Authentication enabled\n"); - - mask = 0; - for (ap = authenticators; ap->type; ap++) { - if ((mask & (i = typemask(ap->type))) != 0) - continue; - mask |= i; - printf("%s: %s\n", AUTHTYPE_NAME(ap->type), - (i_wont_support & typemask(ap->type)) ? - "disabled" : "enabled"); - } - return(1); -} - -/* - * This routine is called by the server to start authentication - * negotiation. - */ -void -auth_request(void) -{ - static unsigned char str_request[64] = { IAC, SB, - TELOPT_AUTHENTICATION, - TELQUAL_SEND, }; - Authenticator *ap = authenticators; - unsigned char *e = str_request + 4; - - if (!authenticating) { - authenticating = 1; - while (ap->type) { - if (i_support & ~i_wont_support & typemask(ap->type)) { - if (auth_debug_mode) { - printf(">>>%s: Sending type %d %d\r\n", - Name, ap->type, ap->way); - } - *e++ = ap->type; - *e++ = ap->way; - } - ++ap; - } - *e++ = IAC; - *e++ = SE; - net_write(str_request, e - str_request); - printsub('>', &str_request[2], e - str_request - 2); - } -} - -/* - * This is called when an AUTH SEND is received. - * It should never arrive on the server side (as only the server can - * send an AUTH SEND). - * You should probably respond to it if you can... - * - * If you want to respond to the types out of order (i.e. even - * if he sends LOGIN KERBEROS and you support both, you respond - * with KERBEROS instead of LOGIN (which is against what the - * protocol says)) you will have to hack this code... - */ -void -auth_send(unsigned char *data, int cnt) -{ - Authenticator *ap; - static unsigned char str_none[] = { IAC, SB, TELOPT_AUTHENTICATION, - TELQUAL_IS, AUTHTYPE_NULL, 0, - IAC, SE }; - if (Server) { - if (auth_debug_mode) { - printf(">>>%s: auth_send called!\r\n", Name); - } - return; - } - - if (auth_debug_mode) { - printf(">>>%s: auth_send got:", Name); - printd(data, cnt); printf("\r\n"); - } - - /* - * Save the data, if it is new, so that we can continue looking - * at it if the authorization we try doesn't work - */ - if (data < _auth_send_data || - data > _auth_send_data + sizeof(_auth_send_data)) { - auth_send_cnt = (size_t)cnt > sizeof(_auth_send_data) - ? sizeof(_auth_send_data) - : cnt; - memmove((void *)_auth_send_data, (void *)data, auth_send_cnt); - auth_send_data = _auth_send_data; - } else { - /* - * This is probably a no-op, but we just make sure - */ - auth_send_data = data; - auth_send_cnt = cnt; - } - while ((auth_send_cnt -= 2) >= 0) { - if (auth_debug_mode) - printf(">>>%s: He supports %d\r\n", - Name, *auth_send_data); - if ((i_support & ~i_wont_support) & typemask(*auth_send_data)) { - ap = findauthenticator(auth_send_data[0], - auth_send_data[1]); - if (ap && ap->send) { - if (auth_debug_mode) - printf(">>>%s: Trying %d %d\r\n", - Name, auth_send_data[0], - auth_send_data[1]); - if ((*ap->send)(ap)) { - /* - * Okay, we found one we like - * and did it. - * we can go home now. - */ - if (auth_debug_mode) - printf(">>>%s: Using type %d\r\n", - Name, *auth_send_data); - auth_send_data += 2; - return; - } - } - /* else - * just continue on and look for the - * next one if we didn't do anything. - */ - } - auth_send_data += 2; - } - net_write(str_none, sizeof(str_none)); - printsub('>', &str_none[2], sizeof(str_none) - 2); - if (auth_debug_mode) - printf(">>>%s: Sent failure message\r\n", Name); - auth_finished(0, AUTH_REJECT); -} - -void -auth_send_retry(void) -{ - /* - * if auth_send_cnt <= 0 then auth_send will end up rejecting - * the authentication and informing the other side of this. - */ - auth_send(auth_send_data, auth_send_cnt); -} - -void -auth_is(unsigned char *data, int cnt) -{ - Authenticator *ap; - - if (cnt < 2) - return; - - if (data[0] == AUTHTYPE_NULL) { - auth_finished(0, AUTH_REJECT); - return; - } - - if ((ap = findauthenticator(data[0], data[1]))) { - if (ap->is) - (*ap->is)(ap, data+2, cnt-2); - } else if (auth_debug_mode) - printf(">>>%s: Invalid authentication in IS: %d\r\n", - Name, *data); -} - -void -auth_reply(unsigned char *data, int cnt) -{ - Authenticator *ap; - - if (cnt < 2) - return; - - if ((ap = findauthenticator(data[0], data[1]))) { - if (ap->reply) - (*ap->reply)(ap, data+2, cnt-2); - } else if (auth_debug_mode) - printf(">>>%s: Invalid authentication in SEND: %d\r\n", - Name, *data); -} - -void -auth_name(unsigned char *data, int cnt) -{ - unsigned char savename[256]; - - if (cnt < 1) { - if (auth_debug_mode) - printf(">>>%s: Empty name in NAME\r\n", Name); - return; - } - if ((size_t)cnt > sizeof(savename) - 1) { - if (auth_debug_mode) - printf(">>>%s: Name in NAME (%d) exceeds %d length\r\n", - Name, cnt, (u_int)sizeof(savename)-1); - return; - } - memmove((void *)savename, (void *)data, cnt); - savename[cnt] = '\0'; /* Null terminate */ - if (auth_debug_mode) - printf(">>>%s: Got NAME [%s]\r\n", Name, savename); - auth_encrypt_user(savename); -} - -int -auth_sendname(unsigned char *cp, int len) -{ - static unsigned char str_request[256+6] - = { IAC, SB, TELOPT_AUTHENTICATION, TELQUAL_NAME, }; - unsigned char *e = str_request + 4; - unsigned char *ee = &str_request[sizeof(str_request)-2]; - - while (--len >= 0) { - if ((*e++ = *cp++) == IAC) - *e++ = IAC; - if (e >= ee) - return(0); - } - *e++ = IAC; - *e++ = SE; - net_write(str_request, e - str_request); - printsub('>', &str_request[2], e - &str_request[2]); - return(1); -} - -void -auth_finished(Authenticator *ap, int result) -{ - if (!(authenticated = ap)) - authenticated = &NoAuth; - validuser = result; -} - -/* ARGSUSED */ -static void -auth_intr(int sig __unused) -{ - auth_finished(0, AUTH_REJECT); -} - -int -auth_wait(char *name) -{ - if (auth_debug_mode) - printf(">>>%s: in auth_wait.\r\n", Name); - - if (Server && !authenticating) - return(0); - - (void) signal(SIGALRM, auth_intr); - alarm(30); - while (!authenticated) - if (telnet_spin()) - break; - alarm(0); - (void) signal(SIGALRM, SIG_DFL); - - /* - * Now check to see if the user is valid or not - */ - if (!authenticated || authenticated == &NoAuth) - return(AUTH_REJECT); - - if (validuser == AUTH_VALID) - validuser = AUTH_USER; - - if (authenticated->status) - validuser = (*authenticated->status)(authenticated, - name, validuser); - return(validuser); -} - -void -auth_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen) -{ - Authenticator *ap; - - if ((ap = findauthenticator(data[1], data[2])) && ap->printsub) - (*ap->printsub)(data, cnt, buf, buflen); - else - auth_gen_printsub(data, cnt, buf, buflen); -} - -void -auth_gen_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen) -{ - unsigned char *cp; - unsigned char tbuf[16]; - - cnt -= 3; - data += 3; - buf[buflen-1] = '\0'; - buf[buflen-2] = '*'; - buflen -= 2; - for (; cnt > 0; cnt--, data++) { - sprintf((char *)tbuf, " %d", *data); - for (cp = tbuf; *cp && buflen > 0; --buflen) - *buf++ = *cp++; - if (buflen <= 0) - return; - } - *buf = '\0'; -} -#endif diff --git a/crypto/telnet/libtelnet/auth.h b/crypto/telnet/libtelnet/auth.h deleted file mode 100644 index a8ee048..0000000 --- a/crypto/telnet/libtelnet/auth.h +++ /dev/null @@ -1,80 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)auth.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - -#ifndef __AUTH__ -#define __AUTH__ - -#define AUTH_REJECT 0 /* Rejected */ -#define AUTH_UNKNOWN 1 /* We don't know who he is, but he's okay */ -#define AUTH_OTHER 2 /* We know him, but not his name */ -#define AUTH_USER 3 /* We know he name */ -#define AUTH_VALID 4 /* We know him, and he needs no password */ - -typedef struct XauthP { - int type; - int way; - int (*init)(struct XauthP *, int); - int (*send)(struct XauthP *); - void (*is)(struct XauthP *, unsigned char *, int); - void (*reply)(struct XauthP *, unsigned char *, int); - int (*status)(struct XauthP *, char *, int); - void (*printsub)(unsigned char *, int, unsigned char *, int); -} Authenticator; - -#include "auth-proto.h" - -extern int auth_debug_mode; -#endif diff --git a/crypto/telnet/libtelnet/enc-proto.h b/crypto/telnet/libtelnet/enc-proto.h deleted file mode 100644 index 46663c7..0000000 --- a/crypto/telnet/libtelnet/enc-proto.h +++ /dev/null @@ -1,126 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)enc-proto.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - -#ifdef ENCRYPTION -void encrypt_init(const char *, int); -Encryptions *findencryption(int); -void encrypt_send_supprt(void); -void encrypt_auto(int); -void decrypt_auto(int); -void encrypt_is(unsigned char *, int); -void encrypt_reply(unsigned char *, int); -void encrypt_start_input(int); -void encrypt_session_key(Session_Key *, int); -void encrypt_end_input(void); -void encrypt_start_output(int); -void encrypt_end_output(void); -void encrypt_send_request_start(void); -void encrypt_send_request_end(void); -void encrypt_send_end(void); -void encrypt_wait(void); -void encrypt_send_support(void); -void encrypt_send_keyid(int, const char *, int, int); -void encrypt_start(unsigned char *, int); -void encrypt_end(void); -void encrypt_support(unsigned char *, int); -void encrypt_request_start(unsigned char *, int); -void encrypt_request_end(void); -void encrypt_enc_keyid(unsigned char *, int); -void encrypt_dec_keyid(unsigned char *, int); -void encrypt_printsub(unsigned char *, int, unsigned char *, int); -void encrypt_gen_printsub(unsigned char *, int, unsigned char *, int); -void encrypt_display(void); - -void fb64_printsub(unsigned char *, int, unsigned char *, int, const char *); - -int EncryptEnable(char *, char *); -int EncryptDisable(char *, char *); -int EncryptStatus(void); -int EncryptDebug(int); -int EncryptVerbose(int); -int EncryptAutoEnc(int); -int EncryptAutoDec(int); - -void krbdes_encrypt(unsigned char *, int); -int krbdes_decrypt(int); -int krbdes_is(unsigned char *, int); -int krbdes_reply(unsigned char *, int); -void krbdes_init(int); -int krbdes_start(int, int); -void krbdes_session(Session_Key *, int); -void krbdes_printsub(unsigned char *, int, unsigned char *, int); - -void cfb64_encrypt(unsigned char *, int); -int cfb64_decrypt(int); -void cfb64_init(int); -int cfb64_start(int, int); -int cfb64_is(unsigned char *, int); -int cfb64_reply(unsigned char *, int); -void cfb64_session(Session_Key *, int); -int cfb64_keyid(int, unsigned char *, int *); -void cfb64_printsub(unsigned char *, int, unsigned char *, int); - -void ofb64_encrypt(unsigned char *, int); -int ofb64_decrypt(int); -void ofb64_init(int); -int ofb64_start(int, int); -int ofb64_is(unsigned char *, int); -int ofb64_reply(unsigned char *, int); -void ofb64_session(Session_Key *, int); -int ofb64_keyid(int, unsigned char *, int *); -void ofb64_printsub(unsigned char *, int, unsigned char *, int); - -#endif /* ENCRYPTION */ diff --git a/crypto/telnet/libtelnet/enc_des.c b/crypto/telnet/libtelnet/enc_des.c deleted file mode 100644 index 2f7fe6e..0000000 --- a/crypto/telnet/libtelnet/enc_des.c +++ /dev/null @@ -1,662 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)enc_des.c 8.3 (Berkeley) 5/30/95"; -#endif /* not lint */ -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#ifdef ENCRYPTION -# ifdef AUTHENTICATION -#include <arpa/telnet.h> -#include <openssl/des.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "encrypt.h" -#include "key-proto.h" -#include "misc-proto.h" - -extern int encrypt_debug_mode; - -#define CFB 0 -#define OFB 1 - -#define NO_SEND_IV 1 -#define NO_RECV_IV 2 -#define NO_KEYID 4 -#define IN_PROGRESS (NO_SEND_IV|NO_RECV_IV|NO_KEYID) -#define SUCCESS 0 -#define FAILED -1 - - -struct fb { - Block krbdes_key; - Schedule krbdes_sched; - Block temp_feed; - unsigned char fb_feed[64]; - int need_start; - int state[2]; - int keyid[2]; - struct stinfo { - Block str_output; - Block str_feed; - Block str_iv; - Block str_ikey; - Schedule str_sched; - int str_index; - int str_flagshift; - } streams[2]; -}; - -static struct fb fb[2]; - -struct keyidlist { - const char *keyid; - int keyidlen; - char *key; - int keylen; - int flags; -} keyidlist [] = { - { "\0", 1, 0, 0, 0 }, /* default key of zero */ - { 0, 0, 0, 0, 0 } -}; - -#define KEYFLAG_MASK 03 - -#define KEYFLAG_NOINIT 00 -#define KEYFLAG_INIT 01 -#define KEYFLAG_OK 02 -#define KEYFLAG_BAD 03 - -#define KEYFLAG_SHIFT 2 - -#define SHIFT_VAL(a,b) (KEYFLAG_SHIFT*((a)+((b)*2))) - -#define FB64_IV 1 -#define FB64_IV_OK 2 -#define FB64_IV_BAD 3 - - -void fb64_stream_iv(Block, struct stinfo *); -void fb64_init(struct fb *); -static int fb64_start(struct fb *, int, int); -int fb64_is(unsigned char *, int, struct fb *); -int fb64_reply(unsigned char *, int, struct fb *); -static void fb64_session(Session_Key *, int, struct fb *); -void fb64_stream_key(Block, struct stinfo *); -int fb64_keyid(int, unsigned char *, int *, struct fb *); - -void -cfb64_init(int server __unused) -{ - fb64_init(&fb[CFB]); - fb[CFB].fb_feed[4] = ENCTYPE_DES_CFB64; - fb[CFB].streams[0].str_flagshift = SHIFT_VAL(0, CFB); - fb[CFB].streams[1].str_flagshift = SHIFT_VAL(1, CFB); -} - -void -ofb64_init(int server __unused) -{ - fb64_init(&fb[OFB]); - fb[OFB].fb_feed[4] = ENCTYPE_DES_OFB64; - fb[CFB].streams[0].str_flagshift = SHIFT_VAL(0, OFB); - fb[CFB].streams[1].str_flagshift = SHIFT_VAL(1, OFB); -} - -void -fb64_init(struct fb *fbp) -{ - memset((void *)fbp, 0, sizeof(*fbp)); - fbp->state[0] = fbp->state[1] = FAILED; - fbp->fb_feed[0] = IAC; - fbp->fb_feed[1] = SB; - fbp->fb_feed[2] = TELOPT_ENCRYPT; - fbp->fb_feed[3] = ENCRYPT_IS; -} - -/* - * Returns: - * -1: some error. Negotiation is done, encryption not ready. - * 0: Successful, initial negotiation all done. - * 1: successful, negotiation not done yet. - * 2: Not yet. Other things (like getting the key from - * Kerberos) have to happen before we can continue. - */ -int -cfb64_start(int dir, int server) -{ - return(fb64_start(&fb[CFB], dir, server)); -} - -int -ofb64_start(int dir, int server) -{ - return(fb64_start(&fb[OFB], dir, server)); -} - -static int -fb64_start(struct fb *fbp, int dir, int server __unused) -{ - size_t x; - unsigned char *p; - int state; - - switch (dir) { - case DIR_DECRYPT: - /* - * This is simply a request to have the other side - * start output (our input). He will negotiate an - * IV so we need not look for it. - */ - state = fbp->state[dir-1]; - if (state == FAILED) - state = IN_PROGRESS; - break; - - case DIR_ENCRYPT: - state = fbp->state[dir-1]; - if (state == FAILED) - state = IN_PROGRESS; - else if ((state & NO_SEND_IV) == 0) - break; - - if (!VALIDKEY(fbp->krbdes_key)) { - fbp->need_start = 1; - break; - } - state &= ~NO_SEND_IV; - state |= NO_RECV_IV; - if (encrypt_debug_mode) - printf("Creating new feed\r\n"); - /* - * Create a random feed and send it over. - */ - des_random_key((Block *)fbp->temp_feed); - des_ecb_encrypt((Block *)fbp->temp_feed, (Block *)fbp->temp_feed, - fbp->krbdes_sched, 1); - p = fbp->fb_feed + 3; - *p++ = ENCRYPT_IS; - p++; - *p++ = FB64_IV; - for (x = 0; x < sizeof(Block); ++x) { - if ((*p++ = fbp->temp_feed[x]) == IAC) - *p++ = IAC; - } - *p++ = IAC; - *p++ = SE; - printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]); - net_write(fbp->fb_feed, p - fbp->fb_feed); - break; - default: - return(FAILED); - } - return(fbp->state[dir-1] = state); -} - -/* - * Returns: - * -1: some error. Negotiation is done, encryption not ready. - * 0: Successful, initial negotiation all done. - * 1: successful, negotiation not done yet. - */ -int -cfb64_is(unsigned char *data, int cnt) -{ - return(fb64_is(data, cnt, &fb[CFB])); -} - -int -ofb64_is(unsigned char *data, int cnt) -{ - return(fb64_is(data, cnt, &fb[OFB])); -} - -int -fb64_is(unsigned char *data, int cnt, struct fb *fbp) -{ - unsigned char *p; - int state = fbp->state[DIR_DECRYPT-1]; - - if (cnt-- < 1) - goto failure; - - switch (*data++) { - case FB64_IV: - if (cnt != sizeof(Block)) { - if (encrypt_debug_mode) - printf("CFB64: initial vector failed on size\r\n"); - state = FAILED; - goto failure; - } - - if (encrypt_debug_mode) - printf("CFB64: initial vector received\r\n"); - - if (encrypt_debug_mode) - printf("Initializing Decrypt stream\r\n"); - - fb64_stream_iv((void *)data, &fbp->streams[DIR_DECRYPT-1]); - - p = fbp->fb_feed + 3; - *p++ = ENCRYPT_REPLY; - p++; - *p++ = FB64_IV_OK; - *p++ = IAC; - *p++ = SE; - printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]); - net_write(fbp->fb_feed, p - fbp->fb_feed); - - state = fbp->state[DIR_DECRYPT-1] = IN_PROGRESS; - break; - - default: - if (encrypt_debug_mode) { - printf("Unknown option type: %d\r\n", *(data-1)); - printd(data, cnt); - printf("\r\n"); - } - /* FALL THROUGH */ - failure: - /* - * We failed. Send an FB64_IV_BAD option - * to the other side so it will know that - * things failed. - */ - p = fbp->fb_feed + 3; - *p++ = ENCRYPT_REPLY; - p++; - *p++ = FB64_IV_BAD; - *p++ = IAC; - *p++ = SE; - printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]); - net_write(fbp->fb_feed, p - fbp->fb_feed); - - break; - } - return(fbp->state[DIR_DECRYPT-1] = state); -} - -/* - * Returns: - * -1: some error. Negotiation is done, encryption not ready. - * 0: Successful, initial negotiation all done. - * 1: successful, negotiation not done yet. - */ -int -cfb64_reply(unsigned char *data, int cnt) -{ - return(fb64_reply(data, cnt, &fb[CFB])); -} - -int -ofb64_reply(unsigned char *data, int cnt) -{ - return(fb64_reply(data, cnt, &fb[OFB])); -} - -int -fb64_reply(unsigned char *data, int cnt, struct fb *fbp) -{ - int state = fbp->state[DIR_ENCRYPT-1]; - - if (cnt-- < 1) - goto failure; - - switch (*data++) { - case FB64_IV_OK: - fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]); - if (state == FAILED) - state = IN_PROGRESS; - state &= ~NO_RECV_IV; - encrypt_send_keyid(DIR_ENCRYPT, "\0", 1, 1); - break; - - case FB64_IV_BAD: - memset(fbp->temp_feed, 0, sizeof(Block)); - fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]); - state = FAILED; - break; - - default: - if (encrypt_debug_mode) { - printf("Unknown option type: %d\r\n", data[-1]); - printd(data, cnt); - printf("\r\n"); - } - /* FALL THROUGH */ - failure: - state = FAILED; - break; - } - return(fbp->state[DIR_ENCRYPT-1] = state); -} - -void -cfb64_session(Session_Key *key, int server) -{ - fb64_session(key, server, &fb[CFB]); -} - -void -ofb64_session(Session_Key *key, int server) -{ - fb64_session(key, server, &fb[OFB]); -} - -static void -fb64_session(Session_Key *key, int server, struct fb *fbp) -{ - if (!key || key->type != SK_DES) { - if (encrypt_debug_mode) - printf("Can't set krbdes's session key (%d != %d)\r\n", - key ? key->type : -1, SK_DES); - return; - } - memmove((void *)fbp->krbdes_key, (void *)key->data, sizeof(Block)); - - fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_ENCRYPT-1]); - fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_DECRYPT-1]); - - des_key_sched((Block *)fbp->krbdes_key, fbp->krbdes_sched); - /* - * Now look to see if krbdes_start() was was waiting for - * the key to show up. If so, go ahead an call it now - * that we have the key. - */ - if (fbp->need_start) { - fbp->need_start = 0; - fb64_start(fbp, DIR_ENCRYPT, server); - } -} - -/* - * We only accept a keyid of 0. If we get a keyid of - * 0, then mark the state as SUCCESS. - */ -int -cfb64_keyid(int dir, unsigned char *kp, int *lenp) -{ - return(fb64_keyid(dir, kp, lenp, &fb[CFB])); -} - -int -ofb64_keyid(int dir, unsigned char *kp, int *lenp) -{ - return(fb64_keyid(dir, kp, lenp, &fb[OFB])); -} - -int -fb64_keyid(int dir, unsigned char *kp, int *lenp, struct fb *fbp) -{ - int state = fbp->state[dir-1]; - - if (*lenp != 1 || (*kp != '\0')) { - *lenp = 0; - return(state); - } - - if (state == FAILED) - state = IN_PROGRESS; - - state &= ~NO_KEYID; - - return(fbp->state[dir-1] = state); -} - -void -fb64_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen, const char *type) -{ - char lbuf[32]; - int i; - char *cp; - - buf[buflen-1] = '\0'; /* make sure it's NULL terminated */ - buflen -= 1; - - switch(data[2]) { - case FB64_IV: - sprintf(lbuf, "%s_IV", type); - cp = lbuf; - goto common; - - case FB64_IV_OK: - sprintf(lbuf, "%s_IV_OK", type); - cp = lbuf; - goto common; - - case FB64_IV_BAD: - sprintf(lbuf, "%s_IV_BAD", type); - cp = lbuf; - goto common; - - default: - sprintf(lbuf, " %d (unknown)", data[2]); - cp = lbuf; - common: - for (; (buflen > 0) && (*buf = *cp++); buf++) - buflen--; - for (i = 3; i < cnt; i++) { - sprintf(lbuf, " %d", data[i]); - for (cp = lbuf; (buflen > 0) && (*buf = *cp++); buf++) - buflen--; - } - break; - } -} - -void -cfb64_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen) -{ - fb64_printsub(data, cnt, buf, buflen, "CFB64"); -} - -void -ofb64_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen) -{ - fb64_printsub(data, cnt, buf, buflen, "OFB64"); -} - -void -fb64_stream_iv(Block seed, struct stinfo *stp) -{ - - memmove((void *)stp->str_iv, (void *)seed, sizeof(Block)); - memmove((void *)stp->str_output, (void *)seed, sizeof(Block)); - - des_key_sched((Block *)stp->str_ikey, stp->str_sched); - - stp->str_index = sizeof(Block); -} - -void -fb64_stream_key(Block key, struct stinfo *stp) -{ - memmove((void *)stp->str_ikey, (void *)key, sizeof(Block)); - des_key_sched((Block *)key, stp->str_sched); - - memmove((void *)stp->str_output, (void *)stp->str_iv, sizeof(Block)); - - stp->str_index = sizeof(Block); -} - -/* - * DES 64 bit Cipher Feedback - * - * key --->+-----+ - * +->| DES |--+ - * | +-----+ | - * | v - * INPUT --(--------->(+)+---> DATA - * | | - * +-------------+ - * - * - * Given: - * iV: Initial vector, 64 bits (8 bytes) long. - * Dn: the nth chunk of 64 bits (8 bytes) of data to encrypt (decrypt). - * On: the nth chunk of 64 bits (8 bytes) of encrypted (decrypted) output. - * - * V0 = DES(iV, key) - * On = Dn ^ Vn - * V(n+1) = DES(On, key) - */ - -void -cfb64_encrypt(unsigned char *s, int c) -{ - struct stinfo *stp = &fb[CFB].streams[DIR_ENCRYPT-1]; - int idx; - - idx = stp->str_index; - while (c-- > 0) { - if (idx == sizeof(Block)) { - Block b; - des_ecb_encrypt((Block *)stp->str_output, (Block *)b, stp->str_sched, 1); - memmove((void *)stp->str_feed, (void *)b, sizeof(Block)); - idx = 0; - } - - /* On encryption, we store (feed ^ data) which is cypher */ - *s = stp->str_output[idx] = (stp->str_feed[idx] ^ *s); - s++; - idx++; - } - stp->str_index = idx; -} - -int -cfb64_decrypt(int data) -{ - struct stinfo *stp = &fb[CFB].streams[DIR_DECRYPT-1]; - int idx; - - if (data == -1) { - /* - * Back up one byte. It is assumed that we will - * never back up more than one byte. If we do, this - * may or may not work. - */ - if (stp->str_index) - --stp->str_index; - return(0); - } - - idx = stp->str_index++; - if (idx == sizeof(Block)) { - Block b; - des_ecb_encrypt((Block *)stp->str_output, (Block *)b, stp->str_sched, 1); - memmove((void *)stp->str_feed, (void *)b, sizeof(Block)); - stp->str_index = 1; /* Next time will be 1 */ - idx = 0; /* But now use 0 */ - } - - /* On decryption we store (data) which is cypher. */ - stp->str_output[idx] = data; - return(data ^ stp->str_feed[idx]); -} - -/* - * DES 64 bit Output Feedback - * - * key --->+-----+ - * +->| DES |--+ - * | +-----+ | - * +-----------+ - * v - * INPUT -------->(+) ----> DATA - * - * Given: - * iV: Initial vector, 64 bits (8 bytes) long. - * Dn: the nth chunk of 64 bits (8 bytes) of data to encrypt (decrypt). - * On: the nth chunk of 64 bits (8 bytes) of encrypted (decrypted) output. - * - * V0 = DES(iV, key) - * V(n+1) = DES(Vn, key) - * On = Dn ^ Vn - */ -void -ofb64_encrypt(unsigned char *s, int c) -{ - struct stinfo *stp = &fb[OFB].streams[DIR_ENCRYPT-1]; - int idx; - - idx = stp->str_index; - while (c-- > 0) { - if (idx == sizeof(Block)) { - Block b; - des_ecb_encrypt((Block *)stp->str_feed, (Block *)b, stp->str_sched, 1); - memmove((void *)stp->str_feed, (void *)b, sizeof(Block)); - idx = 0; - } - *s++ ^= stp->str_feed[idx]; - idx++; - } - stp->str_index = idx; -} - -int -ofb64_decrypt(int data) -{ - struct stinfo *stp = &fb[OFB].streams[DIR_DECRYPT-1]; - int idx; - - if (data == -1) { - /* - * Back up one byte. It is assumed that we will - * never back up more than one byte. If we do, this - * may or may not work. - */ - if (stp->str_index) - --stp->str_index; - return(0); - } - - idx = stp->str_index++; - if (idx == sizeof(Block)) { - Block b; - des_ecb_encrypt((Block *)stp->str_feed, (Block *)b, stp->str_sched, 1); - memmove((void *)stp->str_feed, (void *)b, sizeof(Block)); - stp->str_index = 1; /* Next time will be 1 */ - idx = 0; /* But now use 0 */ - } - - return(data ^ stp->str_feed[idx]); -} -# endif /* AUTHENTICATION */ -#endif /* ENCRYPTION */ diff --git a/crypto/telnet/libtelnet/encrypt.c b/crypto/telnet/libtelnet/encrypt.c deleted file mode 100644 index 8bdf672..0000000 --- a/crypto/telnet/libtelnet/encrypt.c +++ /dev/null @@ -1,953 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -#if 0 -static const char sccsid[] = "@(#)encrypt.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif /* not lint */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - -#ifdef ENCRYPTION - -#include <sys/types.h> -#define ENCRYPT_NAMES -#include <arpa/telnet.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "encrypt.h" -#include "misc.h" - -/* - * These functions pointers point to the current routines - * for encrypting and decrypting data. - */ -void (*encrypt_output)(unsigned char *, int); -int (*decrypt_input)(int); - -int EncryptType(char *type, char *mode); -int EncryptStart(char *mode); -int EncryptStop(char *mode); -int EncryptStartInput(void); -int EncryptStartOutput(void); -int EncryptStopInput(void); -int EncryptStopOutput(void); - -int encrypt_debug_mode = 0; -static int decrypt_mode = 0; -static int encrypt_mode = 0; -static int encrypt_verbose = 0; -static int autoencrypt = 0; -static int autodecrypt = 0; -static int havesessionkey = 0; -static int Server = 0; -static const char *Name = "Noname"; - -#define typemask(x) ((x) > 0 ? 1 << ((x)-1) : 0) - -static u_long i_support_encrypt = 0 - | typemask(ENCTYPE_DES_CFB64) | typemask(ENCTYPE_DES_OFB64) - |0; -static u_long i_support_decrypt = 0 - | typemask(ENCTYPE_DES_CFB64) | typemask(ENCTYPE_DES_OFB64) - |0; - -static u_long i_wont_support_encrypt = 0; -static u_long i_wont_support_decrypt = 0; -#define I_SUPPORT_ENCRYPT (i_support_encrypt & ~i_wont_support_encrypt) -#define I_SUPPORT_DECRYPT (i_support_decrypt & ~i_wont_support_decrypt) - -static u_long remote_supports_encrypt = 0; -static u_long remote_supports_decrypt = 0; - -static Encryptions encryptions[] = { - { "DES_CFB64", ENCTYPE_DES_CFB64, - cfb64_encrypt, - cfb64_decrypt, - cfb64_init, - cfb64_start, - cfb64_is, - cfb64_reply, - cfb64_session, - cfb64_keyid, - cfb64_printsub }, - { "DES_OFB64", ENCTYPE_DES_OFB64, - ofb64_encrypt, - ofb64_decrypt, - ofb64_init, - ofb64_start, - ofb64_is, - ofb64_reply, - ofb64_session, - ofb64_keyid, - ofb64_printsub }, - { NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, -}; - -static unsigned char str_send[64] = { IAC, SB, TELOPT_ENCRYPT, - ENCRYPT_SUPPORT }; -static unsigned char str_suplen = 0; -static unsigned char str_start[72] = { IAC, SB, TELOPT_ENCRYPT }; -static unsigned char str_end[] = { IAC, SB, TELOPT_ENCRYPT, 0, IAC, SE }; - -Encryptions * -findencryption(int type) -{ - Encryptions *ep = encryptions; - - if (!(I_SUPPORT_ENCRYPT & remote_supports_decrypt & (unsigned)typemask(type))) - return(0); - while (ep->type && ep->type != type) - ++ep; - return(ep->type ? ep : 0); -} - -static Encryptions * -finddecryption(int type) -{ - Encryptions *ep = encryptions; - - if (!(I_SUPPORT_DECRYPT & remote_supports_encrypt & (unsigned)typemask(type))) - return(0); - while (ep->type && ep->type != type) - ++ep; - return(ep->type ? ep : 0); -} - -#define MAXKEYLEN 64 - -static struct key_info { - unsigned char keyid[MAXKEYLEN]; - int keylen; - int dir; - int *modep; - Encryptions *(*getcrypt)(int); -} ki[2] = { - { { 0 }, 0, DIR_ENCRYPT, &encrypt_mode, findencryption }, - { { 0 }, 0, DIR_DECRYPT, &decrypt_mode, finddecryption }, -}; - -static void encrypt_keyid(struct key_info *kp, unsigned char *keyid, int len); - -void -encrypt_init(const char *name, int server) -{ - Encryptions *ep = encryptions; - - Name = name; - Server = server; - i_support_encrypt = i_support_decrypt = 0; - remote_supports_encrypt = remote_supports_decrypt = 0; - encrypt_mode = 0; - decrypt_mode = 0; - encrypt_output = 0; - decrypt_input = 0; - - str_suplen = 4; - - while (ep->type) { - if (encrypt_debug_mode) - printf(">>>%s: I will support %s\r\n", - Name, ENCTYPE_NAME(ep->type)); - i_support_encrypt |= typemask(ep->type); - i_support_decrypt |= typemask(ep->type); - if ((i_wont_support_decrypt & typemask(ep->type)) == 0) - if ((str_send[str_suplen++] = ep->type) == IAC) - str_send[str_suplen++] = IAC; - if (ep->init) - (*ep->init)(Server); - ++ep; - } - str_send[str_suplen++] = IAC; - str_send[str_suplen++] = SE; -} - -static void -encrypt_list_types(void) -{ - Encryptions *ep = encryptions; - - printf("Valid encryption types:\n"); - while (ep->type) { - printf("\t%s (%d)\r\n", ENCTYPE_NAME(ep->type), ep->type); - ++ep; - } -} - -int -EncryptEnable(char *type, char *mode) -{ - if (isprefix(type, "help") || isprefix(type, "?")) { - printf("Usage: encrypt enable <type> [input|output]\n"); - encrypt_list_types(); - return(0); - } - if (EncryptType(type, mode)) - return(EncryptStart(mode)); - return(0); -} - -int -EncryptDisable(char *type, char *mode) -{ - Encryptions *ep; - int ret = 0; - - if (isprefix(type, "help") || isprefix(type, "?")) { - printf("Usage: encrypt disable <type> [input|output]\n"); - encrypt_list_types(); - } else if ((ep = (Encryptions *)genget(type, (char **)encryptions, - sizeof(Encryptions))) == 0) { - printf("%s: invalid encryption type\n", type); - } else if (Ambiguous((char **)ep)) { - printf("Ambiguous type '%s'\n", type); - } else { - if ((mode == 0) || (isprefix(mode, "input") ? 1 : 0)) { - if (decrypt_mode == ep->type) - EncryptStopInput(); - i_wont_support_decrypt |= typemask(ep->type); - ret = 1; - } - if ((mode == 0) || (isprefix(mode, "output"))) { - if (encrypt_mode == ep->type) - EncryptStopOutput(); - i_wont_support_encrypt |= typemask(ep->type); - ret = 1; - } - if (ret == 0) - printf("%s: invalid encryption mode\n", mode); - } - return(ret); -} - -int -EncryptType(char *type, char *mode) -{ - Encryptions *ep; - int ret = 0; - - if (isprefix(type, "help") || isprefix(type, "?")) { - printf("Usage: encrypt type <type> [input|output]\n"); - encrypt_list_types(); - } else if ((ep = (Encryptions *)genget(type, (char **)encryptions, - sizeof(Encryptions))) == 0) { - printf("%s: invalid encryption type\n", type); - } else if (Ambiguous((char **)ep)) { - printf("Ambiguous type '%s'\n", type); - } else { - if ((mode == 0) || isprefix(mode, "input")) { - decrypt_mode = ep->type; - i_wont_support_decrypt &= ~typemask(ep->type); - ret = 1; - } - if ((mode == 0) || isprefix(mode, "output")) { - encrypt_mode = ep->type; - i_wont_support_encrypt &= ~typemask(ep->type); - ret = 1; - } - if (ret == 0) - printf("%s: invalid encryption mode\n", mode); - } - return(ret); -} - -int -EncryptStart(char *mode) -{ - int ret = 0; - if (mode) { - if (isprefix(mode, "input")) - return(EncryptStartInput()); - if (isprefix(mode, "output")) - return(EncryptStartOutput()); - if (isprefix(mode, "help") || isprefix(mode, "?")) { - printf("Usage: encrypt start [input|output]\n"); - return(0); - } - printf("%s: invalid encryption mode 'encrypt start ?' for help\n", mode); - return(0); - } - ret += EncryptStartInput(); - ret += EncryptStartOutput(); - return(ret); -} - -int -EncryptStartInput(void) -{ - if (decrypt_mode) { - encrypt_send_request_start(); - return(1); - } - printf("No previous decryption mode, decryption not enabled\r\n"); - return(0); -} - -int -EncryptStartOutput(void) -{ - if (encrypt_mode) { - encrypt_start_output(encrypt_mode); - return(1); - } - printf("No previous encryption mode, encryption not enabled\r\n"); - return(0); -} - -int -EncryptStop(char *mode) -{ - int ret = 0; - if (mode) { - if (isprefix(mode, "input")) - return(EncryptStopInput()); - if (isprefix(mode, "output")) - return(EncryptStopOutput()); - if (isprefix(mode, "help") || isprefix(mode, "?")) { - printf("Usage: encrypt stop [input|output]\n"); - return(0); - } - printf("%s: invalid encryption mode 'encrypt stop ?' for help\n", mode); - return(0); - } - ret += EncryptStopInput(); - ret += EncryptStopOutput(); - return(ret); -} - -int -EncryptStopInput(void) -{ - encrypt_send_request_end(); - return(1); -} - -int -EncryptStopOutput(void) -{ - encrypt_send_end(); - return(1); -} - -void -encrypt_display(void) -{ - if (encrypt_output) - printf("Currently encrypting output with %s\r\n", - ENCTYPE_NAME(encrypt_mode)); - if (decrypt_input) - printf("Currently decrypting input with %s\r\n", - ENCTYPE_NAME(decrypt_mode)); -} - -int -EncryptStatus(void) -{ - if (encrypt_output) - printf("Currently encrypting output with %s\r\n", - ENCTYPE_NAME(encrypt_mode)); - else if (encrypt_mode) { - printf("Currently output is clear text.\r\n"); - printf("Last encryption mode was %s\r\n", - ENCTYPE_NAME(encrypt_mode)); - } - if (decrypt_input) { - printf("Currently decrypting input with %s\r\n", - ENCTYPE_NAME(decrypt_mode)); - } else if (decrypt_mode) { - printf("Currently input is clear text.\r\n"); - printf("Last decryption mode was %s\r\n", - ENCTYPE_NAME(decrypt_mode)); - } - return 1; -} - -void -encrypt_send_support(void) -{ - if (str_suplen) { - /* - * If the user has requested that decryption start - * immediatly, then send a "REQUEST START" before - * we negotiate the type. - */ - if (!Server && autodecrypt) - encrypt_send_request_start(); - net_write(str_send, str_suplen); - printsub('>', &str_send[2], str_suplen - 2); - str_suplen = 0; - } -} - -int -EncryptDebug(int on) -{ - if (on < 0) - encrypt_debug_mode ^= 1; - else - encrypt_debug_mode = on; - printf("Encryption debugging %s\r\n", - encrypt_debug_mode ? "enabled" : "disabled"); - return(1); -} - -int -EncryptVerbose(int on) -{ - if (on < 0) - encrypt_verbose ^= 1; - else - encrypt_verbose = on; - printf("Encryption %s verbose\r\n", - encrypt_verbose ? "is" : "is not"); - return(1); -} - -int -EncryptAutoEnc(int on) -{ - encrypt_auto(on); - printf("Automatic encryption of output is %s\r\n", - autoencrypt ? "enabled" : "disabled"); - return(1); -} - -int -EncryptAutoDec(int on) -{ - decrypt_auto(on); - printf("Automatic decryption of input is %s\r\n", - autodecrypt ? "enabled" : "disabled"); - return(1); -} - -/* - * Called when ENCRYPT SUPPORT is received. - */ -void -encrypt_support(unsigned char *typelist, int cnt) -{ - int type, use_type = 0; - Encryptions *ep; - - /* - * Forget anything the other side has previously told us. - */ - remote_supports_decrypt = 0; - - while (cnt-- > 0) { - type = *typelist++; - if (encrypt_debug_mode) - printf(">>>%s: He is supporting %s (%d)\r\n", - Name, - ENCTYPE_NAME(type), type); - if ((type < ENCTYPE_CNT) && - (I_SUPPORT_ENCRYPT & typemask(type))) { - remote_supports_decrypt |= typemask(type); - if (use_type == 0) - use_type = type; - } - } - if (use_type) { - ep = findencryption(use_type); - if (!ep) - return; - type = ep->start ? (*ep->start)(DIR_ENCRYPT, Server) : 0; - if (encrypt_debug_mode) - printf(">>>%s: (*ep->start)() returned %d\r\n", - Name, type); - if (type < 0) - return; - encrypt_mode = use_type; - if (type == 0) - encrypt_start_output(use_type); - } -} - -void -encrypt_is(unsigned char *data, int cnt) -{ - Encryptions *ep; - int type, ret; - - if (--cnt < 0) - return; - type = *data++; - if (type < ENCTYPE_CNT) - remote_supports_encrypt |= typemask(type); - if (!(ep = finddecryption(type))) { - if (encrypt_debug_mode) - printf(">>>%s: Can't find type %s (%d) for initial negotiation\r\n", - Name, - ENCTYPE_NAME_OK(type) - ? ENCTYPE_NAME(type) : "(unknown)", - type); - return; - } - if (!ep->is) { - if (encrypt_debug_mode) - printf(">>>%s: No initial negotiation needed for type %s (%d)\r\n", - Name, - ENCTYPE_NAME_OK(type) - ? ENCTYPE_NAME(type) : "(unknown)", - type); - ret = 0; - } else { - ret = (*ep->is)(data, cnt); - if (encrypt_debug_mode) - printf("(*ep->is)(%p, %d) returned %s(%d)\n", data, cnt, - (ret < 0) ? "FAIL " : - (ret == 0) ? "SUCCESS " : "MORE_TO_DO ", ret); - } - if (ret < 0) { - autodecrypt = 0; - } else { - decrypt_mode = type; - if (ret == 0 && autodecrypt) - encrypt_send_request_start(); - } -} - -void -encrypt_reply(unsigned char *data, int cnt) -{ - Encryptions *ep; - int ret, type; - - if (--cnt < 0) - return; - type = *data++; - if (!(ep = findencryption(type))) { - if (encrypt_debug_mode) - printf(">>>%s: Can't find type %s (%d) for initial negotiation\r\n", - Name, - ENCTYPE_NAME_OK(type) - ? ENCTYPE_NAME(type) : "(unknown)", - type); - return; - } - if (!ep->reply) { - if (encrypt_debug_mode) - printf(">>>%s: No initial negotiation needed for type %s (%d)\r\n", - Name, - ENCTYPE_NAME_OK(type) - ? ENCTYPE_NAME(type) : "(unknown)", - type); - ret = 0; - } else { - ret = (*ep->reply)(data, cnt); - if (encrypt_debug_mode) - printf("(*ep->reply)(%p, %d) returned %s(%d)\n", - data, cnt, - (ret < 0) ? "FAIL " : - (ret == 0) ? "SUCCESS " : "MORE_TO_DO ", ret); - } - if (encrypt_debug_mode) - printf(">>>%s: encrypt_reply returned %d\n", Name, ret); - if (ret < 0) { - autoencrypt = 0; - } else { - encrypt_mode = type; - if (ret == 0 && autoencrypt) - encrypt_start_output(type); - } -} - -/* - * Called when a ENCRYPT START command is received. - */ -void -encrypt_start(unsigned char *data __unused, int cnt __unused) -{ - Encryptions *ep; - - if (!decrypt_mode) { - /* - * Something is wrong. We should not get a START - * command without having already picked our - * decryption scheme. Send a REQUEST-END to - * attempt to clear the channel... - */ - printf("%s: Warning, Cannot decrypt input stream!!!\r\n", Name); - encrypt_send_request_end(); - return; - } - - if ((ep = finddecryption(decrypt_mode))) { - decrypt_input = ep->input; - if (encrypt_verbose) - printf("[ Input is now decrypted with type %s ]\r\n", - ENCTYPE_NAME(decrypt_mode)); - if (encrypt_debug_mode) - printf(">>>%s: Start to decrypt input with type %s\r\n", - Name, ENCTYPE_NAME(decrypt_mode)); - } else { - printf("%s: Warning, Cannot decrypt type %s (%d)!!!\r\n", - Name, - ENCTYPE_NAME_OK(decrypt_mode) - ? ENCTYPE_NAME(decrypt_mode) - : "(unknown)", - decrypt_mode); - encrypt_send_request_end(); - } -} - -void -encrypt_session_key( Session_Key *key, int server) -{ - Encryptions *ep = encryptions; - - havesessionkey = 1; - - while (ep->type) { - if (ep->session) - (*ep->session)(key, server); - ++ep; - } -} - -/* - * Called when ENCRYPT END is received. - */ -void -encrypt_end(void) -{ - decrypt_input = 0; - if (encrypt_debug_mode) - printf(">>>%s: Input is back to clear text\r\n", Name); - if (encrypt_verbose) - printf("[ Input is now clear text ]\r\n"); -} - -/* - * Called when ENCRYPT REQUEST-END is received. - */ -void -encrypt_request_end(void) -{ - encrypt_send_end(); -} - -/* - * Called when ENCRYPT REQUEST-START is received. If we receive - * this before a type is picked, then that indicates that the - * other side wants us to start encrypting data as soon as we - * can. - */ -void -encrypt_request_start(unsigned char *data __unused, int cnt __unused) -{ - if (encrypt_mode == 0) { - if (Server) - autoencrypt = 1; - return; - } - encrypt_start_output(encrypt_mode); -} - -static unsigned char str_keyid[(MAXKEYLEN*2)+5] = { IAC, SB, TELOPT_ENCRYPT }; - -void -encrypt_enc_keyid(unsigned char *keyid, int len) -{ - encrypt_keyid(&ki[1], keyid, len); -} - -void -encrypt_dec_keyid(unsigned char *keyid, int len) -{ - encrypt_keyid(&ki[0], keyid, len); -} - -void -encrypt_keyid(struct key_info *kp, unsigned char *keyid, int len) -{ - Encryptions *ep; - int dir = kp->dir; - int ret = 0; - - if (!(ep = (*kp->getcrypt)(*kp->modep))) { - if (len == 0) - return; - kp->keylen = 0; - } else if (len == 0) { - /* - * Empty option, indicates a failure. - */ - if (kp->keylen == 0) - return; - kp->keylen = 0; - if (ep->keyid) - (void)(*ep->keyid)(dir, kp->keyid, &kp->keylen); - - } else if ((len != kp->keylen) || - (memcmp(keyid, kp->keyid, len) != 0)) { - /* - * Length or contents are different - */ - kp->keylen = len; - memmove(kp->keyid, keyid, len); - if (ep->keyid) - (void)(*ep->keyid)(dir, kp->keyid, &kp->keylen); - } else { - if (ep->keyid) - ret = (*ep->keyid)(dir, kp->keyid, &kp->keylen); - if ((ret == 0) && (dir == DIR_ENCRYPT) && autoencrypt) - encrypt_start_output(*kp->modep); - return; - } - - encrypt_send_keyid(dir, kp->keyid, kp->keylen, 0); -} - -void -encrypt_send_keyid(int dir, const char *keyid, int keylen, int saveit) -{ - unsigned char *strp; - - str_keyid[3] = (dir == DIR_ENCRYPT) - ? ENCRYPT_ENC_KEYID : ENCRYPT_DEC_KEYID; - if (saveit) { - struct key_info *kp = &ki[(dir == DIR_ENCRYPT) ? 0 : 1]; - memmove(kp->keyid, keyid, keylen); - kp->keylen = keylen; - } - - for (strp = &str_keyid[4]; keylen > 0; --keylen) { - if ((*strp++ = *keyid++) == IAC) - *strp++ = IAC; - } - *strp++ = IAC; - *strp++ = SE; - net_write(str_keyid, strp - str_keyid); - printsub('>', &str_keyid[2], strp - str_keyid - 2); -} - -void -encrypt_auto(int on) -{ - if (on < 0) - autoencrypt ^= 1; - else - autoencrypt = on ? 1 : 0; -} - -void -decrypt_auto(int on) -{ - if (on < 0) - autodecrypt ^= 1; - else - autodecrypt = on ? 1 : 0; -} - -void -encrypt_start_output(int type) -{ - Encryptions *ep; - unsigned char *p; - int i; - - if (!(ep = findencryption(type))) { - if (encrypt_debug_mode) { - printf(">>>%s: Can't encrypt with type %s (%d)\r\n", - Name, - ENCTYPE_NAME_OK(type) - ? ENCTYPE_NAME(type) : "(unknown)", - type); - } - return; - } - if (ep->start) { - i = (*ep->start)(DIR_ENCRYPT, Server); - if (encrypt_debug_mode) { - printf(">>>%s: Encrypt start: %s (%d) %s\r\n", - Name, - (i < 0) ? "failed" : - "initial negotiation in progress", - i, ENCTYPE_NAME(type)); - } - if (i) - return; - } - p = str_start + 3; - *p++ = ENCRYPT_START; - for (i = 0; i < ki[0].keylen; ++i) { - if ((*p++ = ki[0].keyid[i]) == IAC) - *p++ = IAC; - } - *p++ = IAC; - *p++ = SE; - net_write(str_start, p - str_start); - net_encrypt(); - printsub('>', &str_start[2], p - &str_start[2]); - /* - * If we are already encrypting in some mode, then - * encrypt the ring (which includes our request) in - * the old mode, mark it all as "clear text" and then - * switch to the new mode. - */ - encrypt_output = ep->output; - encrypt_mode = type; - if (encrypt_debug_mode) - printf(">>>%s: Started to encrypt output with type %s\r\n", - Name, ENCTYPE_NAME(type)); - if (encrypt_verbose) - printf("[ Output is now encrypted with type %s ]\r\n", - ENCTYPE_NAME(type)); -} - -void -encrypt_send_end(void) -{ - if (!encrypt_output) - return; - - str_end[3] = ENCRYPT_END; - net_write(str_end, sizeof(str_end)); - net_encrypt(); - printsub('>', &str_end[2], sizeof(str_end) - 2); - /* - * Encrypt the output buffer now because it will not be done by - * netflush... - */ - encrypt_output = 0; - if (encrypt_debug_mode) - printf(">>>%s: Output is back to clear text\r\n", Name); - if (encrypt_verbose) - printf("[ Output is now clear text ]\r\n"); -} - -void -encrypt_send_request_start(void) -{ - unsigned char *p; - int i; - - p = &str_start[3]; - *p++ = ENCRYPT_REQSTART; - for (i = 0; i < ki[1].keylen; ++i) { - if ((*p++ = ki[1].keyid[i]) == IAC) - *p++ = IAC; - } - *p++ = IAC; - *p++ = SE; - net_write(str_start, p - str_start); - printsub('>', &str_start[2], p - &str_start[2]); - if (encrypt_debug_mode) - printf(">>>%s: Request input to be encrypted\r\n", Name); -} - -void -encrypt_send_request_end(void) -{ - str_end[3] = ENCRYPT_REQEND; - net_write(str_end, sizeof(str_end)); - printsub('>', &str_end[2], sizeof(str_end) - 2); - - if (encrypt_debug_mode) - printf(">>>%s: Request input to be clear text\r\n", Name); -} - -void -encrypt_wait(void) -{ - if (encrypt_debug_mode) - printf(">>>%s: in encrypt_wait\r\n", Name); - if (!havesessionkey || !(I_SUPPORT_ENCRYPT & remote_supports_decrypt)) - return; - while (autoencrypt && !encrypt_output) - if (telnet_spin()) - return; -} - -void -encrypt_gen_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen) -{ - char tbuf[16], *cp; - - cnt -= 2; - data += 2; - buf[buflen-1] = '\0'; - buf[buflen-2] = '*'; - buflen -= 2;; - for (; cnt > 0; cnt--, data++) { - sprintf(tbuf, " %d", *data); - for (cp = tbuf; *cp && buflen > 0; --buflen) - *buf++ = *cp++; - if (buflen <= 0) - return; - } - *buf = '\0'; -} - -void -encrypt_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen) -{ - Encryptions *ep; - int type = data[1]; - - for (ep = encryptions; ep->type && ep->type != type; ep++) - ; - - if (ep->printsub) - (*ep->printsub)(data, cnt, buf, buflen); - else - encrypt_gen_printsub(data, cnt, buf, buflen); -} -#endif /* ENCRYPTION */ diff --git a/crypto/telnet/libtelnet/encrypt.h b/crypto/telnet/libtelnet/encrypt.h deleted file mode 100644 index eda8d57..0000000 --- a/crypto/telnet/libtelnet/encrypt.h +++ /dev/null @@ -1,106 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)encrypt.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - -#ifdef ENCRYPTION -# ifndef __ENCRYPTION__ -# define __ENCRYPTION__ - -#define DIR_DECRYPT 1 -#define DIR_ENCRYPT 2 - -#include <openssl/des.h> -typedef unsigned char Block[8]; -typedef unsigned char *BlockT; -#if 0 -typedef struct { Block __; } Schedule[16]; -#else -#define Schedule des_key_schedule -#endif - -#define VALIDKEY(key) ( key[0] | key[1] | key[2] | key[3] | \ - key[4] | key[5] | key[6] | key[7]) - -#define SAMEKEY(k1, k2) (!bcmp((void *)k1, (void *)k2, sizeof(Block))) - -typedef struct { - short type; - int length; - unsigned char *data; -} Session_Key; - -typedef struct { - const char *name; - int type; - void (*output)(unsigned char *, int); - int (*input)(int); - void (*init)(int); - int (*start)(int, int); - int (*is)(unsigned char *, int); - int (*reply)(unsigned char *, int); - void (*session)(Session_Key *, int); - int (*keyid)(int, unsigned char *, int *); - void (*printsub)(unsigned char *, int, unsigned char *, int); -} Encryptions; - -#define SK_DES 1 /* Matched Kerberos v5 KEYTYPE_DES */ - -#include "enc-proto.h" - -extern int encrypt_debug_mode; -extern int (*decrypt_input)(int); -extern void (*encrypt_output)(unsigned char *, int); -# endif /* __ENCRYPTION__ */ -#endif /* ENCRYPTION */ diff --git a/crypto/telnet/libtelnet/genget.c b/crypto/telnet/libtelnet/genget.c deleted file mode 100644 index e24bb44..0000000 --- a/crypto/telnet/libtelnet/genget.c +++ /dev/null @@ -1,107 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -#if 0 -static const char sccsid[] = "@(#)genget.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif /* not lint */ - - -#include <ctype.h> - -#include "misc-proto.h" - -#define LOWER(x) (isupper(x) ? tolower(x) : (x)) -/* - * The prefix function returns 0 if *s1 is not a prefix - * of *s2. If *s1 exactly matches *s2, the negative of - * the length is returned. If *s1 is a prefix of *s2, - * the length of *s1 is returned. - */ -int -isprefix(char *s1, const char *s2) -{ - char *os1; - char c1, c2; - - if (*s1 == '\0') - return(-1); - os1 = s1; - c1 = *s1; - c2 = *s2; - while (LOWER(c1) == LOWER(c2)) { - if (c1 == '\0') - break; - c1 = *++s1; - c2 = *++s2; - } - return(*s1 ? 0 : (*s2 ? (s1 - os1) : (os1 - s1))); -} - -static char *ambiguous; /* special return value for command routines */ - -char ** -genget(char *name, char **table, int stlen) -{ - char **c, **found; - int n; - - if (name == 0) - return 0; - - found = 0; - for (c = table; *c != 0; c = (char **)((char *)c + stlen)) { - if ((n = isprefix(name, *c)) == 0) - continue; - if (n < 0) /* exact match */ - return(c); - if (found) - return(&ambiguous); - found = c; - } - return(found); -} - -/* - * Function call version of Ambiguous() - */ -int -Ambiguous(char **s) -{ - return(s == &ambiguous); -} diff --git a/crypto/telnet/libtelnet/getent.c b/crypto/telnet/libtelnet/getent.c deleted file mode 100644 index d6e8d9c..0000000 --- a/crypto/telnet/libtelnet/getent.c +++ /dev/null @@ -1,76 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)getent.c 8.2 (Berkeley) 12/15/93"; -#endif -#endif /* not lint */ - -#include <stdlib.h> -#include <string.h> - -#include "misc-proto.h" - -static char *area; -static char gettytab[] = "/etc/gettytab"; - -/*ARGSUSED*/ -int -getent(char *cp __unused, const char *name) -{ - int retval; - char *tempnam, *dba[2] = { gettytab, NULL }; - - tempnam = strdup(name); - retval = cgetent(&area, dba, tempnam) == 0 ? 1 : 0; - free(tempnam); - return(retval); -} - -/*ARGSUSED*/ -char * -Getstr(const char *id, char **cpp __unused) -{ - int retval; - char *answer, *tempid; - - tempid = strdup(id); - retval = cgetstr(area, tempid, &answer); - free(tempid); - return((retval > 0) ? answer : NULL); -} diff --git a/crypto/telnet/libtelnet/kerberos.c b/crypto/telnet/libtelnet/kerberos.c deleted file mode 100644 index 2380c27..0000000 --- a/crypto/telnet/libtelnet/kerberos.c +++ /dev/null @@ -1,506 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -static const char sccsid[] = "@(#)kerberos.c 8.3 (Berkeley) 5/30/95"; -#endif /* not lint */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - -#ifdef KRB4 -#include <sys/types.h> -#include <arpa/telnet.h> -#include <openssl/des.h> /* BSD wont include this in krb.h, so we do it here */ -#include <krb.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "encrypt.h" -#include "auth.h" -#include "misc.h" - -int kerberos4_cksum(unsigned char *, int); -int kuserok(AUTH_DAT *, char *); - -extern int auth_debug_mode; - -static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0, - AUTHTYPE_KERBEROS_V4, }; - -#define KRB_AUTH 0 /* Authentication data follows */ -#define KRB_REJECT 1 /* Rejected (reason might follow) */ -#define KRB_ACCEPT 2 /* Accepted */ -#define KRB_CHALLENGE 3 /* Challenge for mutual auth. */ -#define KRB_RESPONSE 4 /* Response for mutual auth. */ - -static KTEXT_ST auth; -static char name[ANAME_SZ]; -static AUTH_DAT adat = { 0, "", "", "", 0, {}, 0, 0, 0, { 0, "", 0 } }; -#ifdef ENCRYPTION -static Block session_key = { 0 }; -static des_key_schedule sched; -static Block challenge = { 0 }; -#endif /* ENCRYPTION */ - -static char krb_service_name[] = "rcmd"; -static char empty[] = ""; - -static int -Data(Authenticator *ap, int type, const unsigned char *d, int c) -{ - unsigned char *p = str_data + 4; - const unsigned char *cd = d; - - if (c == -1) - c = strlen(cd); - - if (auth_debug_mode) { - printf("%s:%d: [%d] (%d)", - str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY", - str_data[3], - type, c); - printd(d, c); - printf("\r\n"); - } - *p++ = ap->type; - *p++ = ap->way; - *p++ = type; - while (c-- > 0) { - if ((*p++ = *cd++) == IAC) - *p++ = IAC; - } - *p++ = IAC; - *p++ = SE; - if (str_data[3] == TELQUAL_IS) - printsub('>', &str_data[2], p - (&str_data[2])); - return(net_write(str_data, p - str_data)); -} - -int -kerberos4_init(Authenticator *ap __unused, int server) -{ - FILE *fp; - - if (server) { - str_data[3] = TELQUAL_REPLY; - if ((fp = fopen(KEYFILE, "r")) == NULL) - return(0); - fclose(fp); - } else { - str_data[3] = TELQUAL_IS; - } - return(1); -} - -char dst_realm_buf[REALM_SZ], *dest_realm = NULL; -int dst_realm_sz = REALM_SZ; - -int -kerberos4_send(Authenticator *ap) -{ - KTEXT_ST lauth; - char instance[INST_SZ]; - char *realm; - CREDENTIALS cred; - int r; - - printf("[ Trying KERBEROS4 ... ]\n"); - if (!UserNameRequested) { - if (auth_debug_mode) { - printf("Kerberos V4: no user name supplied\r\n"); - } - return(0); - } - - memset(instance, 0, sizeof(instance)); - - if ((realm = krb_get_phost(RemoteHostName))) - strncpy(instance, realm, sizeof(instance)); - - instance[sizeof(instance)-1] = '\0'; - - realm = dest_realm ? dest_realm : krb_realmofhost(RemoteHostName); - - if (!realm) { - printf("Kerberos V4: no realm for %s\r\n", RemoteHostName); - return(0); - } - if ((r = krb_mk_req(&lauth, krb_service_name, instance, realm, 0L))) { - printf("mk_req failed: %s\r\n", krb_err_txt[r]); - return(0); - } - if ((r = krb_get_cred(krb_service_name, instance, realm, &cred))) { - printf("get_cred failed: %s\r\n", krb_err_txt[r]); - return(0); - } - if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) { - if (auth_debug_mode) - printf("Not enough room for user name\r\n"); - return(0); - } - if (auth_debug_mode) - printf("Sent %d bytes of authentication data\r\n", lauth.length); - if (!Data(ap, KRB_AUTH, (void *)lauth.dat, lauth.length)) { - if (auth_debug_mode) - printf("Not enough room for authentication data\r\n"); - return(0); - } -#ifdef ENCRYPTION - /* - * If we are doing mutual authentication, get set up to send - * the challenge, and verify it when the response comes back. - */ - if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) { - register int i; - - des_key_sched(&cred.session, sched); - des_random_key(&session_key); - des_ecb_encrypt(&session_key, &session_key, sched, 0); - des_ecb_encrypt(&session_key, &challenge, sched, 0); - /* - * Increment the challenge by 1, and encrypt it for - * later comparison. - */ - for (i = 7; i >= 0; --i) { - register int x; - x = (unsigned int)challenge[i] + 1; - challenge[i] = x; /* ignore overflow */ - if (x < 256) /* if no overflow, all done */ - break; - } - des_ecb_encrypt(&challenge, &challenge, sched, 1); - } -#endif /* ENCRYPTION */ - - if (auth_debug_mode) { - printf("CK: %d:", kerberos4_cksum(lauth.dat, lauth.length)); - printd(lauth.dat, lauth.length); - printf("\r\n"); - printf("Sent Kerberos V4 credentials to server\r\n"); - } - return(1); -} - -void -kerberos4_is(Authenticator *ap, unsigned char *data, int cnt) -{ -#ifdef ENCRYPTION - Session_Key skey; - Block datablock; -#endif /* ENCRYPTION */ - char realm[REALM_SZ]; - char instance[INST_SZ]; - int r; - - if (cnt-- < 1) - return; - switch (*data++) { - case KRB_AUTH: - if (krb_get_lrealm(realm, 1) != KSUCCESS) { - Data(ap, KRB_REJECT, "No local V4 Realm.", -1); - auth_finished(ap, AUTH_REJECT); - if (auth_debug_mode) - printf("No local realm\r\n"); - return; - } - memmove((void *)auth.dat, (void *)data, auth.length = cnt); - if (auth_debug_mode) { - printf("Got %d bytes of authentication data\r\n", cnt); - printf("CK: %d:", kerberos4_cksum(auth.dat, auth.length)); - printd(auth.dat, auth.length); - printf("\r\n"); - } - instance[0] = '*'; instance[1] = 0; - if ((r = krb_rd_req(&auth, krb_service_name, - instance, 0, &adat, empty))) { - if (auth_debug_mode) - printf("Kerberos failed him as %s\r\n", name); - Data(ap, KRB_REJECT, krb_err_txt[r], -1); - auth_finished(ap, AUTH_REJECT); - return; - } -#ifdef ENCRYPTION - memmove((void *)session_key, (void *)adat.session, sizeof(Block)); -#endif /* ENCRYPTION */ - krb_kntoln(&adat, name); - - if (UserNameRequested && !kuserok(&adat, UserNameRequested)) - Data(ap, KRB_ACCEPT, NULL, 0); - else - Data(ap, KRB_REJECT, "user is not authorized", -1); - auth_finished(ap, AUTH_USER); - break; - - case KRB_CHALLENGE: -#ifndef ENCRYPTION - Data(ap, KRB_RESPONSE, NULL, 0); -#else /* ENCRYPTION */ - if (!VALIDKEY(session_key)) { - /* - * We don't have a valid session key, so just - * send back a response with an empty session - * key. - */ - Data(ap, KRB_RESPONSE, NULL, 0); - break; - } - - des_key_sched(&session_key, sched); - memmove((void *)datablock, (void *)data, sizeof(Block)); - /* - * Take the received encrypted challenge, and encrypt - * it again to get a unique session_key for the - * ENCRYPT option. - */ - des_ecb_encrypt(&datablock, &session_key, sched, 1); - skey.type = SK_DES; - skey.length = 8; - skey.data = session_key; - encrypt_session_key(&skey, 1); - /* - * Now decrypt the received encrypted challenge, - * increment by one, re-encrypt it and send it back. - */ - des_ecb_encrypt(&datablock, &challenge, sched, 0); - for (r = 7; r >= 0; r--) { - register int t; - t = (unsigned int)challenge[r] + 1; - challenge[r] = t; /* ignore overflow */ - if (t < 256) /* if no overflow, all done */ - break; - } - des_ecb_encrypt(&challenge, &challenge, sched, 1); - Data(ap, KRB_RESPONSE, challenge, sizeof(challenge)); -#endif /* ENCRYPTION */ - break; - - default: - if (auth_debug_mode) - printf("Unknown Kerberos option %d\r\n", data[-1]); - Data(ap, KRB_REJECT, NULL, 0); - break; - } -} - -void -kerberos4_reply(Authenticator *ap, unsigned char *data, int cnt) -{ -#ifdef ENCRYPTION - Session_Key skey; -#endif /* ENCRYPTION */ - - if (cnt-- < 1) - return; - switch (*data++) { - case KRB_REJECT: - if (cnt > 0) { - printf("[ Kerberos V4 refuses authentication because %.*s ]\r\n", - cnt, data); - } else - printf("[ Kerberos V4 refuses authentication ]\r\n"); - auth_send_retry(); - return; - case KRB_ACCEPT: - printf("[ Kerberos V4 accepts you ]\n"); - if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) { - /* - * Send over the encrypted challenge. - */ -#ifndef ENCRYPTION - Data(ap, KRB_CHALLENGE, NULL, 0); -#else /* ENCRYPTION */ - Data(ap, KRB_CHALLENGE, session_key, - sizeof(session_key)); - des_ecb_encrypt(&session_key, &session_key, sched, 1); - skey.type = SK_DES; - skey.length = 8; - skey.data = session_key; - encrypt_session_key(&skey, 0); -#endif /* ENCRYPTION */ - return; - } - auth_finished(ap, AUTH_USER); - return; - case KRB_RESPONSE: -#ifdef ENCRYPTION - /* - * Verify that the response to the challenge is correct. - */ - if ((cnt != sizeof(Block)) || - (0 != memcmp((void *)data, (void *)challenge, - sizeof(challenge)))) - { -#endif /* ENCRYPTION */ - printf("[ Kerberos V4 challenge failed!!! ]\r\n"); - auth_send_retry(); - return; -#ifdef ENCRYPTION - } - printf("[ Kerberos V4 challenge successful ]\r\n"); - auth_finished(ap, AUTH_USER); -#endif /* ENCRYPTION */ - break; - default: - if (auth_debug_mode) - printf("Unknown Kerberos option %d\r\n", data[-1]); - return; - } -} - -int -kerberos4_status(Authenticator *ap __unused, char *nam, int level) -{ - if (level < AUTH_USER) - return(level); - - if (UserNameRequested && !kuserok(&adat, UserNameRequested)) { - strcpy(nam, UserNameRequested); - return(AUTH_VALID); - } else - return(AUTH_USER); -} - -#define BUMP(buf, len) while (*(buf)) {++(buf), --(len);} -#define ADDC(buf, len, c) if ((len) > 0) {*(buf)++ = (c); --(len);} - -void -kerberos4_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen) -{ - char lbuf[32]; - register int i; - - buf[buflen-1] = '\0'; /* make sure its NULL terminated */ - buflen -= 1; - - switch(data[3]) { - case KRB_REJECT: /* Rejected (reason might follow) */ - strncpy((char *)buf, " REJECT ", buflen); - goto common; - - case KRB_ACCEPT: /* Accepted (name might follow) */ - strncpy((char *)buf, " ACCEPT ", buflen); - common: - BUMP(buf, buflen); - if (cnt <= 4) - break; - ADDC(buf, buflen, '"'); - for (i = 4; i < cnt; i++) - ADDC(buf, buflen, data[i]); - ADDC(buf, buflen, '"'); - ADDC(buf, buflen, '\0'); - break; - - case KRB_AUTH: /* Authentication data follows */ - strncpy((char *)buf, " AUTH", buflen); - goto common2; - - case KRB_CHALLENGE: - strncpy((char *)buf, " CHALLENGE", buflen); - goto common2; - - case KRB_RESPONSE: - strncpy((char *)buf, " RESPONSE", buflen); - goto common2; - - default: - sprintf(lbuf, " %d (unknown)", data[3]); - strncpy((char *)buf, lbuf, buflen); - common2: - BUMP(buf, buflen); - for (i = 4; i < cnt; i++) { - sprintf(lbuf, " %d", data[i]); - strncpy((char *)buf, lbuf, buflen); - BUMP(buf, buflen); - } - break; - } -} - -int -kerberos4_cksum(unsigned char *d, int n) -{ - int ck = 0; - - /* - * A comment is probably needed here for those not - * well versed in the "C" language. Yes, this is - * supposed to be a "switch" with the body of the - * "switch" being a "while" statement. The whole - * purpose of the switch is to allow us to jump into - * the middle of the while() loop, and then not have - * to do any more switch()s. - * - * Some compilers will spit out a warning message - * about the loop not being entered at the top. - */ - switch (n&03) - while (n > 0) { - case 0: - ck ^= (int)*d++ << 24; - --n; - case 3: - ck ^= (int)*d++ << 16; - --n; - case 2: - ck ^= (int)*d++ << 8; - --n; - case 1: - ck ^= (int)*d++; - --n; - } - return(ck); -} -#endif diff --git a/crypto/telnet/libtelnet/kerberos5.c b/crypto/telnet/libtelnet/kerberos5.c deleted file mode 100644 index ab7b2dc..0000000 --- a/crypto/telnet/libtelnet/kerberos5.c +++ /dev/null @@ -1,825 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America may - * require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifdef KRB5 - -#include <arpa/telnet.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <netdb.h> -#include <ctype.h> -#include <pwd.h> -#define Authenticator k5_Authenticator -#include <krb5.h> -#undef Authenticator - -#include "encrypt.h" -#include "auth.h" -#include "misc.h" - -int forward_flags = 0; /* Flags get set in telnet/main.c on -f and -F */ - -/* These values need to be the same as those defined in telnet/main.c. */ -/* Either define them in both places, or put in some common header file. */ -#define OPTS_FORWARD_CREDS 0x00000002 -#define OPTS_FORWARDABLE_CREDS 0x00000001 - -void kerberos5_forward (Authenticator *); - -static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0, - AUTHTYPE_KERBEROS_V5, }; - -#define KRB_AUTH 0 /* Authentication data follows */ -#define KRB_REJECT 1 /* Rejected (reason might follow) */ -#define KRB_ACCEPT 2 /* Accepted */ -#define KRB_RESPONSE 3 /* Response for mutual auth. */ - -#define KRB_FORWARD 4 /* Forwarded credentials follow */ -#define KRB_FORWARD_ACCEPT 5 /* Forwarded credentials accepted */ -#define KRB_FORWARD_REJECT 6 /* Forwarded credentials rejected */ - -static krb5_data auth; -static krb5_ticket *ticket; - -static krb5_context context; -static krb5_auth_context auth_context; - -static int -Data(Authenticator *ap, int type, const char *d, int c) -{ - unsigned char *p = str_data + 4; - const unsigned char *cd = d; - - if (c == -1) - c = strlen(cd); - - if (auth_debug_mode) { - printf("%s:%d: [%d] (%d)", - str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY", - str_data[3], - type, c); - printd(d, c); - printf("\r\n"); - } - *p++ = ap->type; - *p++ = ap->way; - *p++ = type; - while (c-- > 0) { - if ((*p++ = *cd++) == IAC) - *p++ = IAC; - } - *p++ = IAC; - *p++ = SE; - if (str_data[3] == TELQUAL_IS) - printsub('>', &str_data[2], p - &str_data[2]); - return(net_write(str_data, p - str_data)); -} - -int -kerberos5_init(Authenticator *ap __unused, int server) -{ - krb5_error_code ret; - - ret = krb5_init_context(&context); - if (ret) - return 0; - if (server) { - krb5_keytab kt; - krb5_kt_cursor cursor; - - ret = krb5_kt_default(context, &kt); - if (ret) - return 0; - - ret = krb5_kt_start_seq_get (context, kt, &cursor); - if (ret) { - krb5_kt_close (context, kt); - return 0; - } - krb5_kt_end_seq_get (context, kt, &cursor); - krb5_kt_close (context, kt); - - str_data[3] = TELQUAL_REPLY; - } else - str_data[3] = TELQUAL_IS; - return(1); -} - -extern int net; - -static int -kerberos5_send(const char *name, Authenticator *ap) -{ - krb5_error_code ret; - krb5_ccache ccache; - int ap_opts; - krb5_data cksum_data; - char foo[2]; - - if (!UserNameRequested) { - if (auth_debug_mode) { - printf("Kerberos V5: no user name supplied\r\n"); - } - return(0); - } - - ret = krb5_cc_default(context, &ccache); - if (ret) { - if (auth_debug_mode) { - printf("Kerberos V5: could not get default ccache: %s\r\n", - krb5_get_err_text (context, ret)); - } - return 0; - } - - if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) - ap_opts = AP_OPTS_MUTUAL_REQUIRED; - else - ap_opts = 0; - ap_opts |= AP_OPTS_USE_SUBKEY; - - ret = krb5_auth_con_init (context, &auth_context); - if (ret) { - if (auth_debug_mode) { - printf("Kerberos V5: krb5_auth_con_init failed (%s)\r\n", - krb5_get_err_text(context, ret)); - } - return(0); - } - - ret = krb5_auth_con_setaddrs_from_fd (context, - auth_context, - &net); - if (ret) { - if (auth_debug_mode) { - printf ("Kerberos V5:" - " krb5_auth_con_setaddrs_from_fd failed (%s)\r\n", - krb5_get_err_text(context, ret)); - } - return(0); - } - - krb5_auth_con_setkeytype (context, auth_context, KEYTYPE_DES); - - foo[0] = ap->type; - foo[1] = ap->way; - - cksum_data.length = sizeof(foo); - cksum_data.data = foo; - - - { - krb5_principal service; - char sname[128]; - - - ret = krb5_sname_to_principal (context, - RemoteHostName, - NULL, - KRB5_NT_SRV_HST, - &service); - if(ret) { - if (auth_debug_mode) { - printf ("Kerberos V5:" - " krb5_sname_to_principal(%s) failed (%s)\r\n", - RemoteHostName, krb5_get_err_text(context, ret)); - } - return 0; - } - ret = krb5_unparse_name_fixed(context, service, sname, sizeof(sname)); - if(ret) { - if (auth_debug_mode) { - printf ("Kerberos V5:" - " krb5_unparse_name_fixed failed (%s)\r\n", - krb5_get_err_text(context, ret)); - } - return 0; - } - printf("[ Trying %s (%s)... ]\r\n", name, sname); - ret = krb5_mk_req_exact(context, &auth_context, ap_opts, - service, - &cksum_data, ccache, &auth); - krb5_free_principal (context, service); - - } - if (ret) { - if (1 || auth_debug_mode) { - printf("Kerberos V5: mk_req failed (%s)\r\n", - krb5_get_err_text(context, ret)); - } - return(0); - } - - if (!auth_sendname((unsigned char *)UserNameRequested, - strlen(UserNameRequested))) { - if (auth_debug_mode) - printf("Not enough room for user name\r\n"); - return(0); - } - if (!Data(ap, KRB_AUTH, auth.data, auth.length)) { - if (auth_debug_mode) - printf("Not enough room for authentication data\r\n"); - return(0); - } - if (auth_debug_mode) { - printf("Sent Kerberos V5 credentials to server\r\n"); - } - return(1); -} - -int -kerberos5_send_mutual(Authenticator *ap) -{ - return kerberos5_send("mutual KERBEROS5", ap); -} - -int -kerberos5_send_oneway(Authenticator *ap) -{ - return kerberos5_send("KERBEROS5", ap); -} - -void -kerberos5_is(Authenticator *ap, unsigned char *data, int cnt) -{ - krb5_error_code ret; - krb5_data outbuf; - krb5_keyblock *key_block; - char *name; - krb5_principal server; - int zero = 0; - - if (cnt-- < 1) - return; - switch (*data++) { - case KRB_AUTH: - auth.data = (char *)data; - auth.length = cnt; - - auth_context = NULL; - - ret = krb5_auth_con_init (context, &auth_context); - if (ret) { - Data(ap, KRB_REJECT, "krb5_auth_con_init failed", -1); - auth_finished(ap, AUTH_REJECT); - if (auth_debug_mode) - printf("Kerberos V5: krb5_auth_con_init failed (%s)\r\n", - krb5_get_err_text(context, ret)); - return; - } - - ret = krb5_auth_con_setaddrs_from_fd (context, - auth_context, - &zero); - if (ret) { - Data(ap, KRB_REJECT, "krb5_auth_con_setaddrs_from_fd failed", -1); - auth_finished(ap, AUTH_REJECT); - if (auth_debug_mode) - printf("Kerberos V5: " - "krb5_auth_con_setaddrs_from_fd failed (%s)\r\n", - krb5_get_err_text(context, ret)); - return; - } - - ret = krb5_sock_to_principal (context, - 0, - "host", - KRB5_NT_SRV_HST, - &server); - if (ret) { - Data(ap, KRB_REJECT, "krb5_sock_to_principal failed", -1); - auth_finished(ap, AUTH_REJECT); - if (auth_debug_mode) - printf("Kerberos V5: " - "krb5_sock_to_principal failed (%s)\r\n", - krb5_get_err_text(context, ret)); - return; - } - - ret = krb5_rd_req(context, - &auth_context, - &auth, - server, - NULL, - NULL, - &ticket); - - krb5_free_principal (context, server); - if (ret) { - char *errbuf; - - asprintf(&errbuf, - "Read req failed: %s", - krb5_get_err_text(context, ret)); - Data(ap, KRB_REJECT, errbuf, -1); - if (auth_debug_mode) - printf("%s\r\n", errbuf); - free (errbuf); - return; - } - - { - char foo[2]; - - foo[0] = ap->type; - foo[1] = ap->way; - - ret = krb5_verify_authenticator_checksum(context, - auth_context, - foo, - sizeof(foo)); - - if (ret) { - char *errbuf; - asprintf(&errbuf, "Bad checksum: %s", - krb5_get_err_text(context, ret)); - Data(ap, KRB_REJECT, errbuf, -1); - if (auth_debug_mode) - printf ("%s\r\n", errbuf); - free(errbuf); - return; - } - } - ret = krb5_auth_con_getremotesubkey (context, - auth_context, - &key_block); - - if (ret) { - Data(ap, KRB_REJECT, "krb5_auth_con_getremotesubkey failed", -1); - auth_finished(ap, AUTH_REJECT); - if (auth_debug_mode) - printf("Kerberos V5: " - "krb5_auth_con_getremotesubkey failed (%s)\r\n", - krb5_get_err_text(context, ret)); - return; - } - - if (key_block == NULL) { - ret = krb5_auth_con_getkey(context, - auth_context, - &key_block); - } - if (ret) { - Data(ap, KRB_REJECT, "krb5_auth_con_getkey failed", -1); - auth_finished(ap, AUTH_REJECT); - if (auth_debug_mode) - printf("Kerberos V5: " - "krb5_auth_con_getkey failed (%s)\r\n", - krb5_get_err_text(context, ret)); - return; - } - if (key_block == NULL) { - Data(ap, KRB_REJECT, "no subkey received", -1); - auth_finished(ap, AUTH_REJECT); - if (auth_debug_mode) - printf("Kerberos V5: " - "krb5_auth_con_getremotesubkey returned NULL key\r\n"); - return; - } - - if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) { - ret = krb5_mk_rep(context, auth_context, &outbuf); - if (ret) { - Data(ap, KRB_REJECT, - "krb5_mk_rep failed", -1); - auth_finished(ap, AUTH_REJECT); - if (auth_debug_mode) - printf("Kerberos V5: " - "krb5_mk_rep failed (%s)\r\n", - krb5_get_err_text(context, ret)); - return; - } - Data(ap, KRB_RESPONSE, outbuf.data, outbuf.length); - } - if (krb5_unparse_name(context, ticket->client, &name)) - name = 0; - - if(UserNameRequested && krb5_kuserok(context, - ticket->client, - UserNameRequested)) { - Data(ap, KRB_ACCEPT, name, name ? -1 : 0); - if (auth_debug_mode) { - printf("Kerberos5 identifies him as ``%s''\r\n", - name ? name : ""); - } - - if(key_block->keytype == ETYPE_DES_CBC_MD5 || - key_block->keytype == ETYPE_DES_CBC_MD4 || - key_block->keytype == ETYPE_DES_CBC_CRC) { - Session_Key skey; - - skey.type = SK_DES; - skey.length = 8; - skey.data = key_block->keyvalue.data; - encrypt_session_key(&skey, 0); - } - - } else { - char *msg; - - asprintf (&msg, "user `%s' is not authorized to " - "login as `%s'", - name ? name : "<unknown>", - UserNameRequested ? UserNameRequested : "<nobody>"); - if (msg == NULL) - Data(ap, KRB_REJECT, NULL, 0); - else { - Data(ap, KRB_REJECT, (void *)msg, -1); - free(msg); - } - auth_finished (ap, AUTH_REJECT); - krb5_free_keyblock_contents(context, key_block); - break; - } - auth_finished(ap, AUTH_USER); - krb5_free_keyblock_contents(context, key_block); - - break; - case KRB_FORWARD: { - struct passwd *pwd; - char ccname[1024]; /* XXX */ - krb5_data inbuf; - krb5_ccache ccache; - inbuf.data = (char *)data; - inbuf.length = cnt; - - pwd = getpwnam (UserNameRequested); - if (pwd == NULL) - break; - - snprintf (ccname, sizeof(ccname), - "FILE:/tmp/krb5cc_%u", pwd->pw_uid); - - ret = krb5_cc_resolve (context, ccname, &ccache); - if (ret) { - if (auth_debug_mode) - printf ("Kerberos V5: could not get ccache: %s\r\n", - krb5_get_err_text(context, ret)); - break; - } - - ret = krb5_cc_initialize (context, - ccache, - ticket->client); - if (ret) { - if (auth_debug_mode) - printf ("Kerberos V5: could not init ccache: %s\r\n", - krb5_get_err_text(context, ret)); - break; - } - -#if defined(DCE) - esetenv("KRB5CCNAME", ccname, 1); -#endif - ret = krb5_rd_cred2 (context, - auth_context, - ccache, - &inbuf); - if(ret) { - char *errbuf; - - asprintf (&errbuf, - "Read forwarded creds failed: %s", - krb5_get_err_text (context, ret)); - if(errbuf == NULL) - Data(ap, KRB_FORWARD_REJECT, NULL, 0); - else - Data(ap, KRB_FORWARD_REJECT, errbuf, -1); - if (auth_debug_mode) - printf("Could not read forwarded credentials: %s\r\n", - errbuf); - free (errbuf); - } else { - Data(ap, KRB_FORWARD_ACCEPT, 0, 0); -#if defined(DCE) - dfsfwd = 1; -#endif - } - chown (ccname + 5, pwd->pw_uid, -1); - if (auth_debug_mode) - printf("Forwarded credentials obtained\r\n"); - break; - } - default: - if (auth_debug_mode) - printf("Unknown Kerberos option %d\r\n", data[-1]); - Data(ap, KRB_REJECT, 0, 0); - break; - } -} - -void -kerberos5_reply(Authenticator *ap, unsigned char *data, int cnt) -{ - static int mutual_complete = 0; - - if (cnt-- < 1) - return; - switch (*data++) { - case KRB_REJECT: - if (cnt > 0) { - printf("[ Kerberos V5 refuses authentication because %.*s ]\r\n", - cnt, data); - } else - printf("[ Kerberos V5 refuses authentication ]\r\n"); - auth_send_retry(); - return; - case KRB_ACCEPT: { - krb5_error_code ret; - Session_Key skey; - krb5_keyblock *keyblock; - - if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL && - !mutual_complete) { - printf("[ Kerberos V5 accepted you, but didn't provide mutual authentication! ]\r\n"); - auth_send_retry(); - return; - } - if (cnt) - printf("[ Kerberos V5 accepts you as ``%.*s'' ]\r\n", cnt, data); - else - printf("[ Kerberos V5 accepts you ]\r\n"); - - ret = krb5_auth_con_getlocalsubkey (context, - auth_context, - &keyblock); - if (ret) - ret = krb5_auth_con_getkey (context, - auth_context, - &keyblock); - if(ret) { - printf("[ krb5_auth_con_getkey: %s ]\r\n", - krb5_get_err_text(context, ret)); - auth_send_retry(); - return; - } - - skey.type = SK_DES; - skey.length = 8; - skey.data = keyblock->keyvalue.data; - encrypt_session_key(&skey, 0); - krb5_free_keyblock_contents (context, keyblock); - auth_finished(ap, AUTH_USER); - if (forward_flags & OPTS_FORWARD_CREDS) - kerberos5_forward(ap); - break; - } - case KRB_RESPONSE: - if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) { - /* the rest of the reply should contain a krb_ap_rep */ - krb5_ap_rep_enc_part *reply; - krb5_data inbuf; - krb5_error_code ret; - - inbuf.length = cnt; - inbuf.data = (char *)data; - - ret = krb5_rd_rep(context, auth_context, &inbuf, &reply); - if (ret) { - printf("[ Mutual authentication failed: %s ]\r\n", - krb5_get_err_text (context, ret)); - auth_send_retry(); - return; - } - krb5_free_ap_rep_enc_part(context, reply); - mutual_complete = 1; - } - return; - case KRB_FORWARD_ACCEPT: - printf("[ Kerberos V5 accepted forwarded credentials ]\r\n"); - return; - case KRB_FORWARD_REJECT: - printf("[ Kerberos V5 refuses forwarded credentials because %.*s ]\r\n", - cnt, data); - return; - default: - if (auth_debug_mode) - printf("Unknown Kerberos option %d\r\n", data[-1]); - return; - } -} - -int -kerberos5_status(Authenticator *ap __unused, char *name, int level) -{ - if (level < AUTH_USER) - return(level); - - if (UserNameRequested && - krb5_kuserok(context, - ticket->client, - UserNameRequested)) - { - strcpy(name, UserNameRequested); - return(AUTH_VALID); - } else - return(AUTH_USER); -} - -#define BUMP(buf, len) while (*(buf)) {++(buf), --(len);} -#define ADDC(buf, len, c) if ((len) > 0) {*(buf)++ = (c); --(len);} - -void -kerberos5_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen) -{ - int i; - - buf[buflen-1] = '\0'; /* make sure its NULL terminated */ - buflen -= 1; - - switch(data[3]) { - case KRB_REJECT: /* Rejected (reason might follow) */ - strlcpy((char *)buf, " REJECT ", buflen); - goto common; - - case KRB_ACCEPT: /* Accepted (name might follow) */ - strlcpy((char *)buf, " ACCEPT ", buflen); - common: - BUMP(buf, buflen); - if (cnt <= 4) - break; - ADDC(buf, buflen, '"'); - for (i = 4; i < cnt; i++) - ADDC(buf, buflen, data[i]); - ADDC(buf, buflen, '"'); - ADDC(buf, buflen, '\0'); - break; - - - case KRB_AUTH: /* Authentication data follows */ - strlcpy((char *)buf, " AUTH", buflen); - goto common2; - - case KRB_RESPONSE: - strlcpy((char *)buf, " RESPONSE", buflen); - goto common2; - - case KRB_FORWARD: /* Forwarded credentials follow */ - strlcpy((char *)buf, " FORWARD", buflen); - goto common2; - - case KRB_FORWARD_ACCEPT: /* Forwarded credentials accepted */ - strlcpy((char *)buf, " FORWARD_ACCEPT", buflen); - goto common2; - - case KRB_FORWARD_REJECT: /* Forwarded credentials rejected */ - /* (reason might follow) */ - strlcpy((char *)buf, " FORWARD_REJECT", buflen); - goto common2; - - default: - snprintf(buf, buflen, " %d (unknown)", data[3]); - common2: - BUMP(buf, buflen); - for (i = 4; i < cnt; i++) { - snprintf(buf, buflen, " %d", data[i]); - BUMP(buf, buflen); - } - break; - } -} - -void -kerberos5_forward(Authenticator *ap) -{ - krb5_error_code ret; - krb5_ccache ccache; - krb5_creds creds; - krb5_kdc_flags flags; - krb5_data out_data; - krb5_principal principal; - - ret = krb5_cc_default (context, &ccache); - if (ret) { - if (auth_debug_mode) - printf ("KerberosV5: could not get default ccache: %s\r\n", - krb5_get_err_text (context, ret)); - return; - } - - ret = krb5_cc_get_principal (context, ccache, &principal); - if (ret) { - if (auth_debug_mode) - printf ("KerberosV5: could not get principal: %s\r\n", - krb5_get_err_text (context, ret)); - return; - } - - memset (&creds, 0, sizeof(creds)); - - creds.client = principal; - - ret = krb5_build_principal (context, - &creds.server, - strlen(principal->realm), - principal->realm, - "krbtgt", - principal->realm, - NULL); - - if (ret) { - if (auth_debug_mode) - printf ("KerberosV5: could not get principal: %s\r\n", - krb5_get_err_text (context, ret)); - return; - } - - creds.times.endtime = 0; - - flags.i = 0; - flags.b.forwarded = 1; - if (forward_flags & OPTS_FORWARDABLE_CREDS) - flags.b.forwardable = 1; - - ret = krb5_get_forwarded_creds (context, - auth_context, - ccache, - flags.i, - RemoteHostName, - &creds, - &out_data); - if (ret) { - if (auth_debug_mode) - printf ("Kerberos V5: error getting forwarded creds: %s\r\n", - krb5_get_err_text (context, ret)); - return; - } - - if(!Data(ap, KRB_FORWARD, out_data.data, out_data.length)) { - if (auth_debug_mode) - printf("Not enough room for authentication data\r\n"); - } else { - if (auth_debug_mode) - printf("Forwarded local Kerberos V5 credentials to server\r\n"); - } -} - -#if defined(DCE) -/* if this was a K5 authentication try and join a PAG for the user. */ -void -kerberos5_dfspag(void) -{ - if (dfsk5ok) { - dfspag = krb5_dfs_pag(context, dfsfwd, ticket->client, - UserNameRequested); - } -} -#endif - -#endif /* KRB5 */ diff --git a/crypto/telnet/libtelnet/key-proto.h b/crypto/telnet/libtelnet/key-proto.h deleted file mode 100644 index 2f3f346..0000000 --- a/crypto/telnet/libtelnet/key-proto.h +++ /dev/null @@ -1,65 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)key-proto.h 8.1 (Berkeley) 6/4/93 - */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - * - * $FreeBSD$ - */ - -#ifndef __KEY_PROTO__ -#define __KEY_PROTO__ - -int key_file_exists(void); -void key_lookup(unsigned char *, Block); -void key_stream_init(Block, Block, int); -unsigned char key_stream(int, int); -#endif diff --git a/crypto/telnet/libtelnet/krb4encpwd.c b/crypto/telnet/libtelnet/krb4encpwd.c deleted file mode 100644 index e0530f6..0000000 --- a/crypto/telnet/libtelnet/krb4encpwd.c +++ /dev/null @@ -1,428 +0,0 @@ -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -static char sccsid[] = "@(#)krb4encpwd.c 8.3 (Berkeley) 5/30/95"; -#endif /* not lint */ - - -#ifdef KRB4_ENCPWD -/* - * COPYRIGHT (C) 1990 DIGITAL EQUIPMENT CORPORATION - * ALL RIGHTS RESERVED - * - * "Digital Equipment Corporation authorizes the reproduction, - * distribution and modification of this software subject to the following - * restrictions: - * - * 1. Any partial or whole copy of this software, or any modification - * thereof, must include this copyright notice in its entirety. - * - * 2. This software is supplied "as is" with no warranty of any kind, - * expressed or implied, for any purpose, including any warranty of fitness - * or merchantibility. DIGITAL assumes no responsibility for the use or - * reliability of this software, nor promises to provide any form of - * support for it on any basis. - * - * 3. Distribution of this software is authorized only if no profit or - * remuneration of any kind is received in exchange for such distribution. - * - * 4. This software produces public key authentication certificates - * bearing an expiration date established by DIGITAL and RSA Data - * Security, Inc. It may cease to generate certificates after the expiration - * date. Any modification of this software that changes or defeats - * the expiration date or its effect is unauthorized. - * - * 5. Software that will renew or extend the expiration date of - * authentication certificates produced by this software may be obtained - * from RSA Data Security, Inc., 10 Twin Dolphin Drive, Redwood City, CA - * 94065, (415)595-8782, or from DIGITAL" - * - */ - -#include <sys/types.h> -#include <openssl/des.h> -#include <arpa/telnet.h> -#include <krb.h> -#include <pwd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "encrypt.h" -#include "auth.h" -#include "misc.h" - -int krb_mk_encpwd_req(KTEXT, char *, char *, char *, char *, char *, char *); -int krb_rd_encpwd_req(KTEXT, char *, char *, u_long, AUTH_DAT *, char *, char *, char *, char *); - -extern auth_debug_mode; - -static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0, - AUTHTYPE_KRB4_ENCPWD, }; -static unsigned char str_name[1024] = { IAC, SB, TELOPT_AUTHENTICATION, - TELQUAL_NAME, }; - -#define KRB4_ENCPWD_AUTH 0 /* Authentication data follows */ -#define KRB4_ENCPWD_REJECT 1 /* Rejected (reason might follow) */ -#define KRB4_ENCPWD_ACCEPT 2 /* Accepted */ -#define KRB4_ENCPWD_CHALLENGE 3 /* Challenge for mutual auth. */ -#define KRB4_ENCPWD_ACK 4 /* Acknowledge */ - -#define KRB_SERVICE_NAME "rcmd" - -static KTEXT_ST auth; -static char name[ANAME_SZ]; -static char user_passwd[ANAME_SZ]; -static AUTH_DAT adat = { 0 }; -#ifdef ENCRYPTION -static Block session_key = { 0 }; -#endif /* ENCRYPTION */ -static char challenge[REALM_SZ]; - - static int -Data(ap, type, d, c) - Authenticator *ap; - int type; - void *d; - int c; -{ - unsigned char *p = str_data + 4; - unsigned char *cd = (unsigned char *)d; - - if (c == -1) - c = strlen((char *)cd); - - if (0) { - printf("%s:%d: [%d] (%d)", - str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY", - str_data[3], - type, c); - printd(d, c); - printf("\r\n"); - } - *p++ = ap->type; - *p++ = ap->way; - *p++ = type; - while (c-- > 0) { - if ((*p++ = *cd++) == IAC) - *p++ = IAC; - } - *p++ = IAC; - *p++ = SE; - if (str_data[3] == TELQUAL_IS) - printsub('>', &str_data[2], p - (&str_data[2])); - return(net_write(str_data, p - str_data)); -} - - int -krb4encpwd_init(ap, server) - Authenticator *ap; - int server; -{ - char hostname[80], *cp, *realm; - C_Block skey; - - if (server) { - str_data[3] = TELQUAL_REPLY; - } else { - str_data[3] = TELQUAL_IS; - gethostname(hostname, sizeof(hostname)); - realm = krb_realmofhost(hostname); - cp = strchr(hostname, '.'); - if (*cp != NULL) *cp = NULL; - if (read_service_key(KRB_SERVICE_NAME, hostname, realm, 0, - KEYFILE, (char *)skey)) { - return(0); - } - } - return(1); -} - - int -krb4encpwd_send(ap) - Authenticator *ap; -{ - - printf("[ Trying KRB4ENCPWD ... ]\n"); - if (!UserNameRequested) { - return(0); - } - if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) { - return(0); - } - - if (!Data(ap, KRB4_ENCPWD_ACK, (void *)NULL, 0)) { - return(0); - } - - return(1); -} - - void -krb4encpwd_is(ap, data, cnt) - Authenticator *ap; - unsigned char *data; - int cnt; -{ - Session_Key skey; - Block datablock; - char r_passwd[ANAME_SZ], r_user[ANAME_SZ]; - char lhostname[ANAME_SZ], *cp; - int r; - time_t now; - - if (cnt-- < 1) - return; - switch (*data++) { - case KRB4_ENCPWD_AUTH: - memmove((void *)auth.dat, (void *)data, auth.length = cnt); - - gethostname(lhostname, sizeof(lhostname)); - if ((cp = strchr(lhostname, '.')) != 0) *cp = '\0'; - - if (r = krb_rd_encpwd_req(&auth, KRB_SERVICE_NAME, lhostname, 0, &adat, NULL, challenge, r_user, r_passwd)) { - Data(ap, KRB4_ENCPWD_REJECT, (void *)"Auth failed", -1); - auth_finished(ap, AUTH_REJECT); - return; - } - auth_encrypt_userpwd(r_passwd); - if (passwdok(UserNameRequested, UserPassword) == 0) { - /* - * illegal username and password - */ - Data(ap, KRB4_ENCPWD_REJECT, (void *)"Illegal password", -1); - auth_finished(ap, AUTH_REJECT); - return; - } - - memmove((void *)session_key, (void *)adat.session, sizeof(Block)); - Data(ap, KRB4_ENCPWD_ACCEPT, (void *)0, 0); - auth_finished(ap, AUTH_USER); - break; - - case KRB4_ENCPWD_CHALLENGE: - /* - * Take the received random challenge text and save - * for future authentication. - */ - memmove((void *)challenge, (void *)data, sizeof(Block)); - break; - - - case KRB4_ENCPWD_ACK: - /* - * Receive ack, if mutual then send random challenge - */ - - /* - * If we are doing mutual authentication, get set up to send - * the challenge, and verify it when the response comes back. - */ - - if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) { - register int i; - - time(&now); - sprintf(challenge, "%x", now); - Data(ap, KRB4_ENCPWD_CHALLENGE, (void *)challenge, strlen(challenge)); - } - break; - - default: - Data(ap, KRB4_ENCPWD_REJECT, 0, 0); - break; - } -} - - - void -krb4encpwd_reply(ap, data, cnt) - Authenticator *ap; - unsigned char *data; - int cnt; -{ - Session_Key skey; - KTEXT_ST krb_token; - Block enckey; - CREDENTIALS cred; - int r; - char randchal[REALM_SZ], instance[ANAME_SZ], *cp; - char hostname[80], *realm; - - if (cnt-- < 1) - return; - switch (*data++) { - case KRB4_ENCPWD_REJECT: - if (cnt > 0) { - printf("[ KRB4_ENCPWD refuses authentication because %.*s ]\r\n", - cnt, data); - } else - printf("[ KRB4_ENCPWD refuses authentication ]\r\n"); - auth_send_retry(); - return; - case KRB4_ENCPWD_ACCEPT: - printf("[ KRB4_ENCPWD accepts you ]\n"); - auth_finished(ap, AUTH_USER); - return; - case KRB4_ENCPWD_CHALLENGE: - /* - * Verify that the response to the challenge is correct. - */ - - gethostname(hostname, sizeof(hostname)); - realm = krb_realmofhost(hostname); - memmove((void *)challenge, (void *)data, cnt); - memset(user_passwd, 0, sizeof(user_passwd)); - local_des_read_pw_string(user_passwd, sizeof(user_passwd)-1, "Password: ", 0); - UserPassword = user_passwd; - Challenge = challenge; - strcpy(instance, RemoteHostName); - if ((cp = strchr(instance, '.')) != 0) *cp = '\0'; - - if (r = krb_mk_encpwd_req(&krb_token, KRB_SERVICE_NAME, instance, realm, Challenge, UserNameRequested, user_passwd)) { - krb_token.length = 0; - } - - if (!Data(ap, KRB4_ENCPWD_AUTH, (void *)krb_token.dat, krb_token.length)) { - return; - } - - break; - - default: - return; - } -} - - int -krb4encpwd_status(ap, name, level) - Authenticator *ap; - char *name; - int level; -{ - - if (level < AUTH_USER) - return(level); - - if (UserNameRequested && passwdok(UserNameRequested, UserPassword)) { - strcpy(name, UserNameRequested); - return(AUTH_VALID); - } else { - return(AUTH_USER); - } -} - -#define BUMP(buf, len) while (*(buf)) {++(buf), --(len);} -#define ADDC(buf, len, c) if ((len) > 0) {*(buf)++ = (c); --(len);} - - void -krb4encpwd_printsub(data, cnt, buf, buflen) - unsigned char *data, *buf; - int cnt, buflen; -{ - char lbuf[32]; - register int i; - - buf[buflen-1] = '\0'; /* make sure its NULL terminated */ - buflen -= 1; - - switch(data[3]) { - case KRB4_ENCPWD_REJECT: /* Rejected (reason might follow) */ - strncpy((char *)buf, " REJECT ", buflen); - goto common; - - case KRB4_ENCPWD_ACCEPT: /* Accepted (name might follow) */ - strncpy((char *)buf, " ACCEPT ", buflen); - common: - BUMP(buf, buflen); - if (cnt <= 4) - break; - ADDC(buf, buflen, '"'); - for (i = 4; i < cnt; i++) - ADDC(buf, buflen, data[i]); - ADDC(buf, buflen, '"'); - ADDC(buf, buflen, '\0'); - break; - - case KRB4_ENCPWD_AUTH: /* Authentication data follows */ - strncpy((char *)buf, " AUTH", buflen); - goto common2; - - case KRB4_ENCPWD_CHALLENGE: - strncpy((char *)buf, " CHALLENGE", buflen); - goto common2; - - case KRB4_ENCPWD_ACK: - strncpy((char *)buf, " ACK", buflen); - goto common2; - - default: - sprintf(lbuf, " %d (unknown)", data[3]); - strncpy((char *)buf, lbuf, buflen); - common2: - BUMP(buf, buflen); - for (i = 4; i < cnt; i++) { - sprintf(lbuf, " %d", data[i]); - strncpy((char *)buf, lbuf, buflen); - BUMP(buf, buflen); - } - break; - } -} - -int passwdok(name, passwd) -char *name, *passwd; -{ - char *crypt(); - char *salt, *p; - struct passwd *pwd; - int passwdok_status = 0; - - if (pwd = getpwnam(name)) - salt = pwd->pw_passwd; - else salt = "xx"; - - p = crypt(passwd, salt); - - if (pwd && !strcmp(p, pwd->pw_passwd)) { - passwdok_status = 1; - } else passwdok_status = 0; - return(passwdok_status); -} - -#endif diff --git a/crypto/telnet/libtelnet/misc-proto.h b/crypto/telnet/libtelnet/misc-proto.h deleted file mode 100644 index aea753c..0000000 --- a/crypto/telnet/libtelnet/misc-proto.h +++ /dev/null @@ -1,80 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)misc-proto.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - -#ifndef __MISC_PROTO__ -#define __MISC_PROTO__ - -void auth_encrypt_init(char *, char *, const char *, int); -void auth_encrypt_connect(int); -void printd(const unsigned char *, int); - -int isprefix(char *, const char *); -char **genget(char *, char **, int); -int Ambiguous(char **); - -int getent(char *, const char *); -char *Getstr(const char *, char **); - -/* - * These functions are imported from the application - */ -int net_write(unsigned char *, int); -void net_encrypt(void); -int telnet_spin(void); -char *telnet_getenv(char *); -char *telnet_gets(const char *, char *, int, int); -void printsub(char, unsigned char *, int); -#endif diff --git a/crypto/telnet/libtelnet/misc.c b/crypto/telnet/libtelnet/misc.c deleted file mode 100644 index 97299ad..0000000 --- a/crypto/telnet/libtelnet/misc.c +++ /dev/null @@ -1,109 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -#if 0 -static const char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/4/93"; -#endif -#endif /* not lint */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "misc.h" -#ifdef AUTHENTICATION -#include "auth.h" -#endif -#ifdef ENCRYPTION -#include "encrypt.h" -#endif /* ENCRYPTION */ - -char *RemoteHostName; -char *LocalHostName; -char *UserNameRequested = 0; -int ConnectedCount = 0; - -#ifndef AUTHENTICATION -#define undef1 __unused -#else -#define undef1 -#endif - -void -auth_encrypt_init(char *local, char *remote, const char *name undef1, int server undef1) -{ - RemoteHostName = remote; - LocalHostName = local; -#ifdef AUTHENTICATION - auth_init(name, server); -#endif -#ifdef ENCRYPTION - encrypt_init(name, server); -#endif /* ENCRYPTION */ - if (UserNameRequested) { - free(UserNameRequested); - UserNameRequested = 0; - } -} - -#ifdef ENCRYPTION -void -auth_encrypt_user(char *name) -{ - if (UserNameRequested) - free(UserNameRequested); - UserNameRequested = name ? strdup(name) : 0; -} - -/* ARGSUSED */ -void -auth_encrypt_connect(int cnt __unused) -{ -} -#endif /* ENCRYPTION */ - -void -printd(const unsigned char *data, int cnt) -{ - if (cnt > 16) - cnt = 16; - while (cnt-- > 0) { - printf(" %02x", *data); - ++data; - } -} diff --git a/crypto/telnet/libtelnet/misc.h b/crypto/telnet/libtelnet/misc.h deleted file mode 100644 index 41ffa7f..0000000 --- a/crypto/telnet/libtelnet/misc.h +++ /dev/null @@ -1,42 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)misc.h 8.1 (Berkeley) 6/4/93 - */ - -extern char *UserNameRequested; -extern char *LocalHostName; -extern char *RemoteHostName; -extern int ConnectedCount; -extern int ReservedPort; - -#include "misc-proto.h" diff --git a/crypto/telnet/libtelnet/pk.c b/crypto/telnet/libtelnet/pk.c deleted file mode 100644 index 044e9b9..0000000 --- a/crypto/telnet/libtelnet/pk.c +++ /dev/null @@ -1,265 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * Dave Safford. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -/* public key routines */ -/* functions: - genkeys(char *public, char *secret) - common_key(char *secret, char *public, desData *deskey) - pk_encode(char *in, *out, DesData *deskey); - pk_decode(char *in, *out, DesData *deskey); - where - char public[HEXKEYBYTES + 1]; - char secret[HEXKEYBYTES + 1]; - */ - -#include <sys/time.h> -#include <openssl/des.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "mp.h" -#include "pk.h" - -static void adjust(char keyout[HEXKEYBYTES+1], char *keyin); - -/* - * Choose top 128 bits of the common key to use as our idea key. - */ -static void -extractideakey(MINT *ck, IdeaData *ideakey) -{ - MINT *a; - MINT *z; - short r; - int i; - short base = (1 << 8); - char *k; - - z = itom(0); - a = itom(0); - madd(ck, z, a); - for (i = 0; i < ((KEYSIZE - 128) / 8); i++) { - sdiv(a, base, a, &r); - } - k = (char *)ideakey; - for (i = 0; i < 16; i++) { - sdiv(a, base, a, &r); - *k++ = r; - } - mfree(z); - mfree(a); -} - -/* - * Choose middle 64 bits of the common key to use as our des key, possibly - * overwriting the lower order bits by setting parity. - */ -static void -extractdeskey(MINT *ck, DesData *deskey) -{ - MINT *a; - MINT *z; - short r; - int i; - short base = (1 << 8); - char *k; - - z = itom(0); - a = itom(0); - madd(ck, z, a); - for (i = 0; i < ((KEYSIZE - 64) / 2) / 8; i++) { - sdiv(a, base, a, &r); - } - k = (char *)deskey; - for (i = 0; i < 8; i++) { - sdiv(a, base, a, &r); - *k++ = r; - } - mfree(z); - mfree(a); -} - -/* - * get common key from my secret key and his public key - */ -void -common_key(char *xsecret, char *xpublic, IdeaData *ideakey, DesData *deskey) -{ - MINT *public; - MINT *secret; - MINT *common; - MINT *modulus = xtom(HEXMODULUS); - - public = xtom(xpublic); - secret = xtom(xsecret); - common = itom(0); - pow(public, secret, modulus, common); - extractdeskey(common, deskey); - extractideakey(common, ideakey); - des_set_odd_parity(deskey); - mfree(common); - mfree(secret); - mfree(public); - mfree(modulus); -} - -/* - * Generate a seed - */ -static void -getseed(char *seed, int seedsize) -{ - int i; - - srandomdev(); - for (i = 0; i < seedsize; i++) { - seed[i] = random() & 0xff; - } -} - -/* - * Generate a random public/secret key pair - */ -void -genkeys(char *public, char *secret) -{ - size_t i; - -# define BASEBITS (8*sizeof(short) - 1) -# define BASE (1 << BASEBITS) - - MINT *pk = itom(0); - MINT *sk = itom(0); - MINT *tmp; - MINT *base = itom(BASE); - MINT *root = itom(PROOT); - MINT *modulus = xtom(HEXMODULUS); - short r; - unsigned short seed[KEYSIZE/BASEBITS + 1]; - char *xkey; - - getseed((char *)seed, sizeof(seed)); - for (i = 0; i < KEYSIZE/BASEBITS + 1; i++) { - r = seed[i] % BASE; - tmp = itom(r); - mult(sk, base, sk); - madd(sk, tmp, sk); - mfree(tmp); - } - tmp = itom(0); - mdiv(sk, modulus, tmp, sk); - mfree(tmp); - pow(root, sk, modulus, pk); - xkey = mtox(sk); - adjust(secret, xkey); - xkey = mtox(pk); - adjust(public, xkey); - mfree(sk); - mfree(base); - mfree(pk); - mfree(root); - mfree(modulus); -} - -/* - * Adjust the input key so that it is 0-filled on the left - */ -static void -adjust(char keyout[HEXKEYBYTES+1], char *keyin) -{ - char *p; - char *s; - - for (p = keyin; *p; p++) - ; - for (s = keyout + HEXKEYBYTES; p >= keyin; p--, s--) { - *s = *p; - } - while (s >= keyout) { - *s-- = '0'; - } -} - -static char hextab[17] = "0123456789ABCDEF"; - -/* given a DES key, cbc encrypt and translate input to terminated hex */ -void -pk_encode(char *in, char *out, DesData *key) -{ - char buf[256]; - DesData i; - des_key_schedule k; - int l,op,deslen; - - memset(&i,0,sizeof(i)); - memset(buf,0,sizeof(buf)); - deslen = ((strlen(in) + 7)/8)*8; - des_key_sched(key, k); - des_cbc_encrypt(in,buf,deslen, k,&i,DES_ENCRYPT); - for (l=0,op=0;l<deslen;l++) { - out[op++] = hextab[(buf[l] & 0xf0) >> 4]; - out[op++] = hextab[(buf[l] & 0x0f)]; - } - out[op] = '\0'; -} - -/* given a DES key, translate input from hex and decrypt */ -void -pk_decode(char *in, char *out, DesData *key) -{ - char buf[256]; - DesData i; - des_key_schedule k; - int n1,n2,op; - size_t l; - - memset(&i,0,sizeof(i)); - memset(buf,0,sizeof(buf)); - for (l=0,op=0;l<strlen(in)/2;l++,op+=2) { - if (in[op] > '9') - n1 = in[op] - 'A' + 10; - else - n1 = in[op] - '0'; - if (in[op+1] > '9') - n2 = in[op+1] - 'A' + 10; - else - n2 = in[op+1] - '0'; - buf[l] = n1*16 +n2; - } - des_key_sched(key, k); - des_cbc_encrypt(buf,out,strlen(in)/2, k,&i,DES_DECRYPT); - out[strlen(in)/2] = '\0'; -} diff --git a/crypto/telnet/libtelnet/pk.h b/crypto/telnet/libtelnet/pk.h deleted file mode 100644 index 555d8eb..0000000 --- a/crypto/telnet/libtelnet/pk.h +++ /dev/null @@ -1,59 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * Dave Safford. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -/* header for the des routines that we will use */ - -typedef unsigned char byte, DesData[ 8], IdeaData[16]; -#define DesKeys des_key_schedule - -#define DES_DECRYPT 0 -#define DES_ENCRYPT 1 - -/* public key routines */ -/* functions: - genkeys(char *public, char *secret) - common_key(char *secret, char *public, desData *deskey) - where - char public[HEXKEYBYTES + 1]; - char secret[HEXKEYBYTES + 1]; - */ - -#define HEXMODULUS "d4a0ba0250b6fd2ec626e7efd637df76c716e22d0944b88b" -#define HEXKEYBYTES 48 -#define KEYSIZE 192 -#define KEYBYTES 24 -#define PROOT 3 - -extern void genkeys(char *public, char *secret); -extern void common_key(char *secret, char *public, IdeaData *common, - DesData *deskey); -extern void pk_encode(char *in, char *out, DesData *deskey); -extern void pk_decode(char *in, char *out, DesData *deskey); diff --git a/crypto/telnet/libtelnet/read_password.c b/crypto/telnet/libtelnet/read_password.c deleted file mode 100644 index badf214..0000000 --- a/crypto/telnet/libtelnet/read_password.c +++ /dev/null @@ -1,151 +0,0 @@ -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)read_password.c 8.3 (Berkeley) 5/30/95"; -#endif -#endif /* not lint */ - -/* - * $Source: /mit/kerberos/src/lib/des/RCS/read_password.c,v $ - * $Author: jon $ - * - * Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute - * of Technology. - * - * For copying and distribution information, please see the file - * <mit-copyright.h>. - * - * This routine prints the supplied string to standard - * output as a prompt, and reads a password string without - * echoing. - */ - -#if defined(RSA_ENCPWD) || defined(KRB4_ENCPWD) - -#include <stdio.h> -#include <strings.h> -#include <sys/ioctl.h> -#include <signal.h> -#include <setjmp.h> - -static jmp_buf env; - -/*** Routines ****************************************************** */ -/* - * This version just returns the string, doesn't map to key. - * - * Returns 0 on success, non-zero on failure. - */ - -int -local_des_read_pw_string(s,max,prompt,verify) - char *s; - int max; - char *prompt; - int verify; -{ - int ok = 0; - char *ptr; - - jmp_buf old_env; - struct sgttyb tty_state; - char key_string[BUFSIZ]; - - if (max > BUFSIZ) { - return -1; - } - - /* XXX assume jmp_buf is typedef'ed to an array */ - memmove((char *)env, (char *)old_env, sizeof(env)); - if (setjmp(env)) - goto lose; - - /* save terminal state*/ - if (ioctl(0,TIOCGETP,(char *)&tty_state) == -1) - return -1; -/* - push_signals(); -*/ - /* Turn off echo */ - tty_state.sg_flags &= ~ECHO; - if (ioctl(0,TIOCSETP,(char *)&tty_state) == -1) - return -1; - while (!ok) { - (void) printf("%s", prompt); - (void) fflush(stdout); - while (!fgets(s, max, stdin)); - - if ((ptr = strchr(s, '\n'))) - *ptr = '\0'; - if (verify) { - printf("\nVerifying, please re-enter %s",prompt); - (void) fflush(stdout); - if (!fgets(key_string, sizeof(key_string), stdin)) { - clearerr(stdin); - continue; - } - if ((ptr = strchr(key_string, '\n'))) - *ptr = '\0'; - if (strcmp(s,key_string)) { - printf("\n\07\07Mismatch - try again\n"); - (void) fflush(stdout); - continue; - } - } - ok = 1; - } - -lose: - if (!ok) - memset(s, 0, max); - printf("\n"); - /* turn echo back on */ - tty_state.sg_flags |= ECHO; - if (ioctl(0,TIOCSETP,(char *)&tty_state)) - ok = 0; -/* - pop_signals(); -*/ - memmove((char *)old_env, (char *)env, sizeof(env)); - if (verify) - memset(key_string, 0, sizeof (key_string)); - s[max-1] = 0; /* force termination */ - return !ok; /* return nonzero if not okay */ -} -#endif /* defined(RSA_ENCPWD) || defined(KRB4_ENCPWD) */ diff --git a/crypto/telnet/libtelnet/rsaencpwd.c b/crypto/telnet/libtelnet/rsaencpwd.c deleted file mode 100644 index fba0c6b..0000000 --- a/crypto/telnet/libtelnet/rsaencpwd.c +++ /dev/null @@ -1,475 +0,0 @@ -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -static char sccsid[] = "@(#)rsaencpwd.c 8.3 (Berkeley) 5/30/95"; -#endif /* not lint */ - - -#ifdef RSA_ENCPWD -/* - * COPYRIGHT (C) 1990 DIGITAL EQUIPMENT CORPORATION - * ALL RIGHTS RESERVED - * - * "Digital Equipment Corporation authorizes the reproduction, - * distribution and modification of this software subject to the following - * restrictions: - * - * 1. Any partial or whole copy of this software, or any modification - * thereof, must include this copyright notice in its entirety. - * - * 2. This software is supplied "as is" with no warranty of any kind, - * expressed or implied, for any purpose, including any warranty of fitness - * or merchantibility. DIGITAL assumes no responsibility for the use or - * reliability of this software, nor promises to provide any form of - * support for it on any basis. - * - * 3. Distribution of this software is authorized only if no profit or - * remuneration of any kind is received in exchange for such distribution. - * - * 4. This software produces public key authentication certificates - * bearing an expiration date established by DIGITAL and RSA Data - * Security, Inc. It may cease to generate certificates after the expiration - * date. Any modification of this software that changes or defeats - * the expiration date or its effect is unauthorized. - * - * 5. Software that will renew or extend the expiration date of - * authentication certificates produced by this software may be obtained - * from RSA Data Security, Inc., 10 Twin Dolphin Drive, Redwood City, CA - * 94065, (415)595-8782, or from DIGITAL" - * - */ - -#include <sys/types.h> -#include <arpa/telnet.h> -#include <pwd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "encrypt.h" -#include "auth.h" -#include "misc.h" -#include "cdc.h" - -extern auth_debug_mode; - -static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0, - AUTHTYPE_RSA_ENCPWD, }; -static unsigned char str_name[1024] = { IAC, SB, TELOPT_AUTHENTICATION, - TELQUAL_NAME, }; - -#define RSA_ENCPWD_AUTH 0 /* Authentication data follows */ -#define RSA_ENCPWD_REJECT 1 /* Rejected (reason might follow) */ -#define RSA_ENCPWD_ACCEPT 2 /* Accepted */ -#define RSA_ENCPWD_CHALLENGEKEY 3 /* Challenge and public key */ - -#define NAME_SZ 40 -#define CHAL_SZ 20 -#define PWD_SZ 40 - -static KTEXT_ST auth; -static char name[NAME_SZ]; -static char user_passwd[PWD_SZ]; -static char key_file[2*NAME_SZ]; -static char lhostname[NAME_SZ]; -static char challenge[CHAL_SZ]; -static int challenge_len; - - static int -Data(ap, type, d, c) - Authenticator *ap; - int type; - void *d; - int c; -{ - unsigned char *p = str_data + 4; - unsigned char *cd = (unsigned char *)d; - - if (c == -1) - c = strlen((char *)cd); - - if (0) { - printf("%s:%d: [%d] (%d)", - str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY", - str_data[3], - type, c); - printd(d, c); - printf("\r\n"); - } - *p++ = ap->type; - *p++ = ap->way; - if (type != NULL) *p++ = type; - while (c-- > 0) { - if ((*p++ = *cd++) == IAC) - *p++ = IAC; - } - *p++ = IAC; - *p++ = SE; - if (str_data[3] == TELQUAL_IS) - printsub('>', &str_data[2], p - (&str_data[2])); - return(net_write(str_data, p - str_data)); -} - - int -rsaencpwd_init(ap, server) - Authenticator *ap; - int server; -{ - char *cp; - FILE *fp; - - if (server) { - str_data[3] = TELQUAL_REPLY; - memset(key_file, 0, sizeof(key_file)); - gethostname(lhostname, sizeof(lhostname)); - if ((cp = strchr(lhostname, '.')) != 0) *cp = '\0'; - strcpy(key_file, "/etc/."); - strcat(key_file, lhostname); - strcat(key_file, "_privkey"); - if ((fp=fopen(key_file, "r"))==NULL) return(0); - fclose(fp); - } else { - str_data[3] = TELQUAL_IS; - } - return(1); -} - - int -rsaencpwd_send(ap) - Authenticator *ap; -{ - - printf("[ Trying RSAENCPWD ... ]\n"); - if (!UserNameRequested) { - return(0); - } - if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) { - return(0); - } - if (!Data(ap, NULL, (void *)NULL, 0)) { - return(0); - } - - - return(1); -} - - void -rsaencpwd_is(ap, data, cnt) - Authenticator *ap; - unsigned char *data; - int cnt; -{ - Session_Key skey; - Block datablock; - char r_passwd[PWD_SZ], r_user[NAME_SZ]; - char *cp, key[160]; - char chalkey[160], *ptr; - FILE *fp; - int r, i, j, chalkey_len, len; - time_t now; - - cnt--; - switch (*data++) { - case RSA_ENCPWD_AUTH: - memmove((void *)auth.dat, (void *)data, auth.length = cnt); - - if ((fp=fopen(key_file, "r"))==NULL) { - Data(ap, RSA_ENCPWD_REJECT, (void *)"Auth failed", -1); - auth_finished(ap, AUTH_REJECT); - return; - } - /* - * get privkey - */ - fscanf(fp, "%x;", &len); - for (i=0;i<len;i++) { - j = getc(fp); key[i]=j; - } - fclose(fp); - - r = accept_rsa_encpwd(&auth, key, challenge, - challenge_len, r_passwd); - if (r < 0) { - Data(ap, RSA_ENCPWD_REJECT, (void *)"Auth failed", -1); - auth_finished(ap, AUTH_REJECT); - return; - } - auth_encrypt_userpwd(r_passwd); - if (rsaencpwd_passwdok(UserNameRequested, UserPassword) == 0) { - /* - * illegal username and password - */ - Data(ap, RSA_ENCPWD_REJECT, (void *)"Illegal password", -1); - auth_finished(ap, AUTH_REJECT); - return; - } - - Data(ap, RSA_ENCPWD_ACCEPT, (void *)0, 0); - auth_finished(ap, AUTH_USER); - break; - - - case IAC: - - /* - * If we are doing mutual authentication, get set up to send - * the challenge, and verify it when the response comes back. - */ - if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_ONE_WAY) { - register int i; - - - time(&now); - if ((now % 2) == 0) { - sprintf(challenge, "%x", now); - challenge_len = strlen(challenge); - } else { - strcpy(challenge, "randchal"); - challenge_len = 8; - } - - if ((fp=fopen(key_file, "r"))==NULL) { - Data(ap, RSA_ENCPWD_REJECT, (void *)"Auth failed", -1); - auth_finished(ap, AUTH_REJECT); - return; - } - /* - * skip privkey - */ - fscanf(fp, "%x;", &len); - for (i=0;i<len;i++) { - j = getc(fp); - } - /* - * get pubkey - */ - fscanf(fp, "%x;", &len); - for (i=0;i<len;i++) { - j = getc(fp); key[i]=j; - } - fclose(fp); - chalkey[0] = 0x30; - ptr = (char *) &chalkey[1]; - chalkey_len = 1+NumEncodeLengthOctets(i)+i+1+NumEncodeLengthOctets(challenge_len)+challenge_len; - EncodeLength(ptr, chalkey_len); - ptr +=NumEncodeLengthOctets(chalkey_len); - *ptr++ = 0x04; /* OCTET STRING */ - *ptr++ = challenge_len; - memmove(ptr, challenge, challenge_len); - ptr += challenge_len; - *ptr++ = 0x04; /* OCTET STRING */ - EncodeLength(ptr, i); - ptr += NumEncodeLengthOctets(i); - memmove(ptr, key, i); - chalkey_len = 1+NumEncodeLengthOctets(chalkey_len)+chalkey_len; - Data(ap, RSA_ENCPWD_CHALLENGEKEY, (void *)chalkey, chalkey_len); - } - break; - - default: - Data(ap, RSA_ENCPWD_REJECT, 0, 0); - break; - } -} - - - void -rsaencpwd_reply(ap, data, cnt) - Authenticator *ap; - unsigned char *data; - int cnt; -{ - Session_Key skey; - KTEXT_ST token; - Block enckey; - int r, pubkey_len; - char randchal[CHAL_SZ], *cp; - char chalkey[160], pubkey[128], *ptr; - - if (cnt-- < 1) - return; - switch (*data++) { - case RSA_ENCPWD_REJECT: - if (cnt > 0) { - printf("[ RSA_ENCPWD refuses authentication because %.*s ]\r\n", - cnt, data); - } else - printf("[ RSA_ENCPWD refuses authentication ]\r\n"); - auth_send_retry(); - return; - case RSA_ENCPWD_ACCEPT: - printf("[ RSA_ENCPWD accepts you ]\n"); - auth_finished(ap, AUTH_USER); - return; - case RSA_ENCPWD_CHALLENGEKEY: - /* - * Verify that the response to the challenge is correct. - */ - - memmove((void *)chalkey, (void *)data, cnt); - ptr = (char *) &chalkey[0]; - ptr += DecodeHeaderLength(chalkey); - if (*ptr != 0x04) { - return; - } - *ptr++; - challenge_len = DecodeValueLength(ptr); - ptr += NumEncodeLengthOctets(challenge_len); - memmove(challenge, ptr, challenge_len); - ptr += challenge_len; - if (*ptr != 0x04) { - return; - } - *ptr++; - pubkey_len = DecodeValueLength(ptr); - ptr += NumEncodeLengthOctets(pubkey_len); - memmove(pubkey, ptr, pubkey_len); - memset(user_passwd, 0, sizeof(user_passwd)); - local_des_read_pw_string(user_passwd, sizeof(user_passwd)-1, "Password: ", 0); - UserPassword = user_passwd; - Challenge = challenge; - r = init_rsa_encpwd(&token, user_passwd, challenge, challenge_len, pubkey); - if (r < 0) { - token.length = 1; - } - - if (!Data(ap, RSA_ENCPWD_AUTH, (void *)token.dat, token.length)) { - return; - } - - break; - - default: - return; - } -} - - int -rsaencpwd_status(ap, name, level) - Authenticator *ap; - char *name; - int level; -{ - - if (level < AUTH_USER) - return(level); - - if (UserNameRequested && rsaencpwd_passwdok(UserNameRequested, UserPassword)) { - strcpy(name, UserNameRequested); - return(AUTH_VALID); - } else { - return(AUTH_USER); - } -} - -#define BUMP(buf, len) while (*(buf)) {++(buf), --(len);} -#define ADDC(buf, len, c) if ((len) > 0) {*(buf)++ = (c); --(len);} - - void -rsaencpwd_printsub(data, cnt, buf, buflen) - unsigned char *data, *buf; - int cnt, buflen; -{ - char lbuf[32]; - register int i; - - buf[buflen-1] = '\0'; /* make sure its NULL terminated */ - buflen -= 1; - - switch(data[3]) { - case RSA_ENCPWD_REJECT: /* Rejected (reason might follow) */ - strncpy((char *)buf, " REJECT ", buflen); - goto common; - - case RSA_ENCPWD_ACCEPT: /* Accepted (name might follow) */ - strncpy((char *)buf, " ACCEPT ", buflen); - common: - BUMP(buf, buflen); - if (cnt <= 4) - break; - ADDC(buf, buflen, '"'); - for (i = 4; i < cnt; i++) - ADDC(buf, buflen, data[i]); - ADDC(buf, buflen, '"'); - ADDC(buf, buflen, '\0'); - break; - - case RSA_ENCPWD_AUTH: /* Authentication data follows */ - strncpy((char *)buf, " AUTH", buflen); - goto common2; - - case RSA_ENCPWD_CHALLENGEKEY: - strncpy((char *)buf, " CHALLENGEKEY", buflen); - goto common2; - - default: - sprintf(lbuf, " %d (unknown)", data[3]); - strncpy((char *)buf, lbuf, buflen); - common2: - BUMP(buf, buflen); - for (i = 4; i < cnt; i++) { - sprintf(lbuf, " %d", data[i]); - strncpy((char *)buf, lbuf, buflen); - BUMP(buf, buflen); - } - break; - } -} - -int rsaencpwd_passwdok(name, passwd) -char *name, *passwd; -{ - char *crypt(); - char *salt, *p; - struct passwd *pwd; - int passwdok_status = 0; - - if (pwd = getpwnam(name)) - salt = pwd->pw_passwd; - else salt = "xx"; - - p = crypt(passwd, salt); - - if (pwd && !strcmp(p, pwd->pw_passwd)) { - passwdok_status = 1; - } else passwdok_status = 0; - return(passwdok_status); -} - -#endif diff --git a/crypto/telnet/libtelnet/sra.c b/crypto/telnet/libtelnet/sra.c deleted file mode 100644 index 1940485..0000000 --- a/crypto/telnet/libtelnet/sra.c +++ /dev/null @@ -1,602 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * Dave Safford. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifdef SRA -#ifdef ENCRYPTION -#include <sys/types.h> -#include <arpa/telnet.h> -#include <pwd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <syslog.h> -#include <ttyent.h> - -#ifndef NOPAM -#include <security/pam_appl.h> -#else -#include <unistd.h> -#endif - -#include "auth.h" -#include "misc.h" -#include "encrypt.h" -#include "pk.h" - -char pka[HEXKEYBYTES+1], ska[HEXKEYBYTES+1], pkb[HEXKEYBYTES+1]; -char *user, *pass, *xuser, *xpass; -DesData ck; -IdeaData ik; - -extern int auth_debug_mode; -extern char line[]; - -static int sra_valid = 0; -static int passwd_sent = 0; - -static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0, - AUTHTYPE_SRA, }; - -#define SRA_KEY 0 -#define SRA_USER 1 -#define SRA_CONTINUE 2 -#define SRA_PASS 3 -#define SRA_ACCEPT 4 -#define SRA_REJECT 5 - -static int check_user(char *, char *); - -/* support routine to send out authentication message */ -static int -Data(Authenticator *ap, int type, void *d, int c) -{ - unsigned char *p = str_data + 4; - unsigned char *cd = (unsigned char *)d; - - if (c == -1) - c = strlen((char *)cd); - - if (auth_debug_mode) { - printf("%s:%d: [%d] (%d)", - str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY", - str_data[3], - type, c); - printd(d, c); - printf("\r\n"); - } - *p++ = ap->type; - *p++ = ap->way; - *p++ = type; - while (c-- > 0) { - if ((*p++ = *cd++) == IAC) - *p++ = IAC; - } - *p++ = IAC; - *p++ = SE; - if (str_data[3] == TELQUAL_IS) - printsub('>', &str_data[2], p - (&str_data[2])); - return(net_write(str_data, p - str_data)); -} - -int -sra_init(Authenticator *ap __unused, int server) -{ - if (server) - str_data[3] = TELQUAL_REPLY; - else - str_data[3] = TELQUAL_IS; - - user = (char *)malloc(256); - xuser = (char *)malloc(513); - pass = (char *)malloc(256); - xpass = (char *)malloc(513); - - if (user == NULL || xuser == NULL || pass == NULL || xpass == - NULL) - return 0; /* malloc failed */ - - passwd_sent = 0; - - genkeys(pka,ska); - return(1); -} - -/* client received a go-ahead for sra */ -int -sra_send(Authenticator *ap) -{ - /* send PKA */ - - if (auth_debug_mode) - printf("Sent PKA to server.\r\n" ); - printf("Trying SRA secure login:\r\n"); - if (!Data(ap, SRA_KEY, (void *)pka, HEXKEYBYTES)) { - if (auth_debug_mode) - printf("Not enough room for authentication data\r\n"); - return(0); - } - - return(1); -} - -/* server received an IS -- could be SRA KEY, USER, or PASS */ -void -sra_is(Authenticator *ap, unsigned char *data, int cnt) -{ - int valid; - Session_Key skey; - - if (cnt-- < 1) - goto bad; - switch (*data++) { - - case SRA_KEY: - if (cnt < HEXKEYBYTES) { - Data(ap, SRA_REJECT, (void *)0, 0); - auth_finished(ap, AUTH_USER); - if (auth_debug_mode) { - printf("SRA user rejected for bad PKB\r\n"); - } - return; - } - if (auth_debug_mode) - printf("Sent pka\r\n"); - if (!Data(ap, SRA_KEY, (void *)pka, HEXKEYBYTES)) { - if (auth_debug_mode) - printf("Not enough room\r\n"); - return; - } - memcpy(pkb,data,HEXKEYBYTES); - pkb[HEXKEYBYTES] = '\0'; - common_key(ska,pkb,&ik,&ck); - return; - - case SRA_USER: - /* decode KAB(u) */ - if (cnt > 512) /* Attempted buffer overflow */ - break; - memcpy(xuser,data,cnt); - xuser[cnt] = '\0'; - pk_decode(xuser,user,&ck); - auth_encrypt_user(user); - Data(ap, SRA_CONTINUE, (void *)0, 0); - - return; - - case SRA_PASS: - if (cnt > 512) /* Attempted buffer overflow */ - break; - /* decode KAB(P) */ - memcpy(xpass,data,cnt); - xpass[cnt] = '\0'; - pk_decode(xpass,pass,&ck); - - /* check user's password */ - valid = check_user(user,pass); - - if(valid) { - Data(ap, SRA_ACCEPT, (void *)0, 0); - skey.data = ck; - skey.type = SK_DES; - skey.length = 8; - encrypt_session_key(&skey, 1); - - sra_valid = 1; - auth_finished(ap, AUTH_VALID); - if (auth_debug_mode) { - printf("SRA user accepted\r\n"); - } - } - else { - Data(ap, SRA_CONTINUE, (void *)0, 0); -/* - Data(ap, SRA_REJECT, (void *)0, 0); - sra_valid = 0; - auth_finished(ap, AUTH_REJECT); -*/ - if (auth_debug_mode) { - printf("SRA user failed\r\n"); - } - } - return; - - default: - if (auth_debug_mode) - printf("Unknown SRA option %d\r\n", data[-1]); - } -bad: - Data(ap, SRA_REJECT, 0, 0); - sra_valid = 0; - auth_finished(ap, AUTH_REJECT); -} - -/* client received REPLY -- could be SRA KEY, CONTINUE, ACCEPT, or REJECT */ -void -sra_reply(Authenticator *ap, unsigned char *data, int cnt) -{ - char uprompt[256],tuser[256]; - Session_Key skey; - size_t i; - - if (cnt-- < 1) - return; - switch (*data++) { - - case SRA_KEY: - /* calculate common key */ - if (cnt < HEXKEYBYTES) { - if (auth_debug_mode) { - printf("SRA user rejected for bad PKB\r\n"); - } - return; - } - memcpy(pkb,data,HEXKEYBYTES); - pkb[HEXKEYBYTES] = '\0'; - - common_key(ska,pkb,&ik,&ck); - - enc_user: - - /* encode user */ - memset(tuser,0,sizeof(tuser)); - sprintf(uprompt,"User (%s): ",UserNameRequested); - telnet_gets(uprompt,tuser,255,1); - if (tuser[0] == '\n' || tuser[0] == '\r' ) - strcpy(user,UserNameRequested); - else { - /* telnet_gets leaves the newline on */ - for(i=0;i<sizeof(tuser);i++) { - if (tuser[i] == '\n') { - tuser[i] = '\0'; - break; - } - } - strcpy(user,tuser); - } - pk_encode(user,xuser,&ck); - - /* send it off */ - if (auth_debug_mode) - printf("Sent KAB(U)\r\n"); - if (!Data(ap, SRA_USER, (void *)xuser, strlen(xuser))) { - if (auth_debug_mode) - printf("Not enough room\r\n"); - return; - } - break; - - case SRA_CONTINUE: - if (passwd_sent) { - passwd_sent = 0; - printf("[ SRA login failed ]\r\n"); - goto enc_user; - } - /* encode password */ - memset(pass,0,sizeof(pass)); - telnet_gets("Password: ",pass,255,0); - pk_encode(pass,xpass,&ck); - /* send it off */ - if (auth_debug_mode) - printf("Sent KAB(P)\r\n"); - if (!Data(ap, SRA_PASS, (void *)xpass, strlen(xpass))) { - if (auth_debug_mode) - printf("Not enough room\r\n"); - return; - } - passwd_sent = 1; - break; - - case SRA_REJECT: - printf("[ SRA refuses authentication ]\r\n"); - printf("Trying plaintext login:\r\n"); - auth_finished(0,AUTH_REJECT); - return; - - case SRA_ACCEPT: - printf("[ SRA accepts you ]\r\n"); - skey.data = ck; - skey.type = SK_DES; - skey.length = 8; - encrypt_session_key(&skey, 0); - - auth_finished(ap, AUTH_VALID); - return; - default: - if (auth_debug_mode) - printf("Unknown SRA option %d\r\n", data[-1]); - return; - } -} - -int -sra_status(Authenticator *ap __unused, char *name, int level) -{ - if (level < AUTH_USER) - return(level); - if (UserNameRequested && sra_valid) { - strcpy(name, UserNameRequested); - return(AUTH_VALID); - } else - return(AUTH_USER); -} - -#define BUMP(buf, len) while (*(buf)) {++(buf), --(len);} -#define ADDC(buf, len, c) if ((len) > 0) {*(buf)++ = (c); --(len);} - -void -sra_printsub(unsigned char *data, int cnt, unsigned char *buf, int buflen) -{ - char lbuf[32]; - int i; - - buf[buflen-1] = '\0'; /* make sure its NULL terminated */ - buflen -= 1; - - switch(data[3]) { - - case SRA_CONTINUE: - strncpy((char *)buf, " CONTINUE ", buflen); - goto common; - - case SRA_REJECT: /* Rejected (reason might follow) */ - strncpy((char *)buf, " REJECT ", buflen); - goto common; - - case SRA_ACCEPT: /* Accepted (name might follow) */ - strncpy((char *)buf, " ACCEPT ", buflen); - - common: - BUMP(buf, buflen); - if (cnt <= 4) - break; - ADDC(buf, buflen, '"'); - for (i = 4; i < cnt; i++) - ADDC(buf, buflen, data[i]); - ADDC(buf, buflen, '"'); - ADDC(buf, buflen, '\0'); - break; - - case SRA_KEY: /* Authentication data follows */ - strncpy((char *)buf, " KEY ", buflen); - goto common2; - - case SRA_USER: - strncpy((char *)buf, " USER ", buflen); - goto common2; - - case SRA_PASS: - strncpy((char *)buf, " PASS ", buflen); - goto common2; - - default: - sprintf(lbuf, " %d (unknown)", data[3]); - strncpy((char *)buf, lbuf, buflen); - common2: - BUMP(buf, buflen); - for (i = 4; i < cnt; i++) { - sprintf(lbuf, " %d", data[i]); - strncpy((char *)buf, lbuf, buflen); - BUMP(buf, buflen); - } - break; - } -} - -static int -isroot(const char *usr) -{ - struct passwd *pwd; - - if ((pwd=getpwnam(usr))==NULL) - return 0; - return (!pwd->pw_uid); -} - -static int -rootterm(char *ttyn) -{ - struct ttyent *t; - - return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE); -} - -#ifdef NOPAM -static int -check_user(char *name, char *cred) -{ - char *cp; - char *xpasswd, *salt; - - if (isroot(name) && !rootterm(line)) - { - crypt("AA","*"); /* Waste some time to simulate success */ - return(0); - } - - if (pw = sgetpwnam(name)) { - if (pw->pw_shell == NULL) { - pw = (struct passwd *) NULL; - return(0); - } - - salt = pw->pw_passwd; - xpasswd = crypt(cred, salt); - /* The strcmp does not catch null passwords! */ - if (pw == NULL || *pw->pw_passwd == '\0' || - strcmp(xpasswd, pw->pw_passwd)) { - pw = (struct passwd *) NULL; - return(0); - } - return(1); - } - return(0); -} -#else - -/* - * The following is stolen from ftpd, which stole it from the imap-uw - * PAM module and login.c. It is needed because we can't really - * "converse" with the user, having already gone to the trouble of - * getting their username and password through an encrypted channel. - */ - -#define COPY_STRING(s) (s ? strdup(s):NULL) - -struct cred_t { - const char *uname; - const char *pass; -}; -typedef struct cred_t cred_t; - -static int -auth_conv(int num_msg, const struct pam_message **msg, struct pam_response **resp, void *appdata) -{ - int i; - cred_t *cred = (cred_t *) appdata; - struct pam_response *reply = - malloc(sizeof(struct pam_response) * num_msg); - - if (reply == NULL) - return PAM_BUF_ERR; - - for (i = 0; i < num_msg; i++) { - switch (msg[i]->msg_style) { - case PAM_PROMPT_ECHO_ON: /* assume want user name */ - reply[i].resp_retcode = PAM_SUCCESS; - reply[i].resp = COPY_STRING(cred->uname); - /* PAM frees resp. */ - break; - case PAM_PROMPT_ECHO_OFF: /* assume want password */ - reply[i].resp_retcode = PAM_SUCCESS; - reply[i].resp = COPY_STRING(cred->pass); - /* PAM frees resp. */ - break; - case PAM_TEXT_INFO: - case PAM_ERROR_MSG: - reply[i].resp_retcode = PAM_SUCCESS; - reply[i].resp = NULL; - break; - default: /* unknown message style */ - free(reply); - return PAM_CONV_ERR; - } - } - - *resp = reply; - return PAM_SUCCESS; -} - -/* - * The PAM version as a side effect may put a new username in *name. - */ -static int -check_user(char *name, char *cred) -{ - pam_handle_t *pamh = NULL; - const void *item; - int rval; - int e; - cred_t auth_cred = { name, cred }; - struct pam_conv conv = { &auth_conv, &auth_cred }; - - e = pam_start("telnetd", name, &conv, &pamh); - if (e != PAM_SUCCESS) { - syslog(LOG_ERR, "pam_start: %s", pam_strerror(pamh, e)); - return 0; - } - -#if 0 /* Where can we find this value? */ - e = pam_set_item(pamh, PAM_RHOST, remotehost); - if (e != PAM_SUCCESS) { - syslog(LOG_ERR, "pam_set_item(PAM_RHOST): %s", - pam_strerror(pamh, e)); - return 0; - } -#endif - - e = pam_authenticate(pamh, 0); - switch (e) { - case PAM_SUCCESS: - /* - * With PAM we support the concept of a "template" - * user. The user enters a login name which is - * authenticated by PAM, usually via a remote service - * such as RADIUS or TACACS+. If authentication - * succeeds, a different but related "template" name - * is used for setting the credentials, shell, and - * home directory. The name the user enters need only - * exist on the remote authentication server, but the - * template name must be present in the local password - * database. - * - * This is supported by two various mechanisms in the - * individual modules. However, from the application's - * point of view, the template user is always passed - * back as a changed value of the PAM_USER item. - */ - if ((e = pam_get_item(pamh, PAM_USER, &item)) == - PAM_SUCCESS) { - strcpy(name, item); - } else - syslog(LOG_ERR, "Couldn't get PAM_USER: %s", - pam_strerror(pamh, e)); - if (isroot(name) && !rootterm(line)) - rval = 0; - else - rval = 1; - break; - - case PAM_AUTH_ERR: - case PAM_USER_UNKNOWN: - case PAM_MAXTRIES: - rval = 0; - break; - - default: - syslog(LOG_ERR, "auth_pam: %s", pam_strerror(pamh, e)); - rval = 0; - break; - } - - if ((e = pam_end(pamh, e)) != PAM_SUCCESS) { - syslog(LOG_ERR, "pam_end: %s", pam_strerror(pamh, e)); - rval = 0; - } - return rval; -} - -#endif - -#endif /* ENCRYPTION */ -#endif /* SRA */ diff --git a/crypto/telnet/telnet/authenc.c b/crypto/telnet/telnet/authenc.c deleted file mode 100644 index 85f389b..0000000 --- a/crypto/telnet/telnet/authenc.c +++ /dev/null @@ -1,111 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#ifdef AUTHENTICATION -#ifdef ENCRYPTION -#include <sys/types.h> -#include <arpa/telnet.h> -#include <pwd.h> -#include <unistd.h> -#include <libtelnet/encrypt.h> -#include <libtelnet/misc.h> - -#include "general.h" -#include "ring.h" -#include "externs.h" -#include "defines.h" -#include "types.h" - -int -net_write(unsigned char *str, int len) -{ - if (NETROOM() > len) { - ring_supply_data(&netoring, str, len); - if (str[0] == IAC && str[1] == SE) - printsub('>', &str[2], len-2); - return(len); - } - return(0); -} - -void -net_encrypt(void) -{ -#ifdef ENCRYPTION - if (encrypt_output) - ring_encrypt(&netoring, encrypt_output); - else - ring_clearto(&netoring); -#endif /* ENCRYPTION */ -} - -int -telnet_spin(void) -{ - return(-1); -} - -char * -telnet_getenv(char *val) -{ - return((char *)env_getvalue((unsigned char *)val)); -} - -char * -telnet_gets(const char *prom, char *result, int length, int echo) -{ - extern int globalmode; - int om = globalmode; - char *res; - - TerminalNewMode(-1); - if (echo) { - printf("%s", prom); - res = fgets(result, length, stdin); - } else if ((res = getpass(prom))) { - strncpy(result, res, length); - res = result; - } - TerminalNewMode(om); - return(res); -} -#endif /* ENCRYPTION */ -#endif /* AUTHENTICATION */ diff --git a/crypto/telnet/telnet/commands.c b/crypto/telnet/telnet/commands.c deleted file mode 100644 index 32aca9f..0000000 --- a/crypto/telnet/telnet/commands.c +++ /dev/null @@ -1,3014 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)commands.c 8.4 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/un.h> -#include <sys/file.h> -#include <sys/socket.h> -#include <netinet/in.h> - -#include <ctype.h> -#include <err.h> -#include <errno.h> -#include <netdb.h> -#include <pwd.h> -#include <signal.h> -#include <stdarg.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include <arpa/telnet.h> -#include <arpa/inet.h> - -#include "general.h" - -#include "ring.h" - -#include "externs.h" -#include "defines.h" -#include "types.h" -#include "misc.h" - -#ifdef AUTHENTICATION -#include <libtelnet/auth.h> -#endif -#ifdef ENCRYPTION -#include <libtelnet/encrypt.h> -#endif - -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <netinet/ip6.h> - -#ifndef MAXHOSTNAMELEN -#define MAXHOSTNAMELEN 256 -#endif - -typedef int (*intrtn_t)(int, char **); - -#ifdef AUTHENTICATION -extern int auth_togdebug(int); -#endif -#ifdef ENCRYPTION -extern int EncryptAutoEnc(int); -extern int EncryptAutoDec(int); -extern int EncryptDebug(int); -extern int EncryptVerbose(int); -#endif /* ENCRYPTION */ -#if defined(IPPROTO_IP) && defined(IP_TOS) -int tos = -1; -#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ - -char *hostname; -static char _hostname[MAXHOSTNAMELEN]; - -static int help(int, char **); -static int call(intrtn_t, ...); -static void cmdrc(char *, char *); -#ifdef INET6 -static int switch_af(struct addrinfo **); -#endif -static int togglehelp(void); -static int send_tncmd(void (*)(int, int), const char *, char *); -static int setmod(int); -static int clearmode(int); -static int modehelp(void); -static int sourceroute(struct addrinfo *, char *, char **, int *, int *, int *); - -typedef struct { - const char *name; /* command name */ - const char *help; /* help string (NULL for no help) */ - int (*handler)(int, char **); /* routine which executes command */ - int needconnect; /* Do we need to be connected to execute? */ -} Command; - -static char line[256]; -static char saveline[256]; -static int margc; -static char *margv[20]; - -#ifdef OPIE -#include <sys/wait.h> -#define PATH_OPIEKEY "/usr/bin/opiekey" -static int -opie_calc(int argc, char *argv[]) -{ - int status; - - if(argc != 3) { - printf("%s sequence challenge\n", argv[0]); - return (0); - } - - switch(fork()) { - case 0: - execv(PATH_OPIEKEY, argv); - exit (1); - case -1: - perror("fork"); - break; - default: - (void) wait(&status); - if (WIFEXITED(status)) - return (WEXITSTATUS(status)); - } - return (0); -} -#endif - -static void -makeargv(void) -{ - char *cp, *cp2, c; - char **argp = margv; - - margc = 0; - cp = line; - if (*cp == '!') { /* Special case shell escape */ - strcpy(saveline, line); /* save for shell command */ - *argp++ = strdup("!"); /* No room in string to get this */ - margc++; - cp++; - } - while ((c = *cp)) { - int inquote = 0; - while (isspace(c)) - c = *++cp; - if (c == '\0') - break; - *argp++ = cp; - margc += 1; - for (cp2 = cp; c != '\0'; c = *++cp) { - if (inquote) { - if (c == inquote) { - inquote = 0; - continue; - } - } else { - if (c == '\\') { - if ((c = *++cp) == '\0') - break; - } else if (c == '"') { - inquote = '"'; - continue; - } else if (c == '\'') { - inquote = '\''; - continue; - } else if (isspace(c)) - break; - } - *cp2++ = c; - } - *cp2 = '\0'; - if (c == '\0') - break; - cp++; - } - *argp++ = 0; -} - -/* - * Make a character string into a number. - * - * Todo: 1. Could take random integers (12, 0x12, 012, 0b1). - */ - -static int -special(char *s) -{ - char c; - char b; - - switch (*s) { - case '^': - b = *++s; - if (b == '?') { - c = b | 0x40; /* DEL */ - } else { - c = b & 0x1f; - } - break; - default: - c = *s; - break; - } - return c; -} - -/* - * Construct a control character sequence - * for a special character. - */ -static const char * -control(cc_t c) -{ - static char buf[5]; - /* - * The only way I could get the Sun 3.5 compiler - * to shut up about - * if ((unsigned int)c >= 0x80) - * was to assign "c" to an unsigned int variable... - * Arggg.... - */ - unsigned int uic = (unsigned int)c; - - if (uic == 0x7f) - return ("^?"); - if (c == (cc_t)_POSIX_VDISABLE) { - return "off"; - } - if (uic >= 0x80) { - buf[0] = '\\'; - buf[1] = ((c>>6)&07) + '0'; - buf[2] = ((c>>3)&07) + '0'; - buf[3] = (c&07) + '0'; - buf[4] = 0; - } else if (uic >= 0x20) { - buf[0] = c; - buf[1] = 0; - } else { - buf[0] = '^'; - buf[1] = '@'+c; - buf[2] = 0; - } - return (buf); -} - -/* - * The following are data structures and routines for - * the "send" command. - * - */ - -struct sendlist { - const char *name; /* How user refers to it (case independent) */ - const char *help; /* Help information (0 ==> no help) */ - int needconnect; /* Need to be connected */ - int narg; /* Number of arguments */ - int (*handler)(char *, ...); /* Routine to perform (for special ops) */ - int nbyte; /* Number of bytes to send this command */ - int what; /* Character to be sent (<0 ==> special) */ -}; - - -static int - send_esc(void), - send_help(void), - send_docmd(char *), - send_dontcmd(char *), - send_willcmd(char *), - send_wontcmd(char *); - -static struct sendlist Sendlist[] = { - { "ao", "Send Telnet Abort output", 1, 0, NULL, 2, AO }, - { "ayt", "Send Telnet 'Are You There'", 1, 0, NULL, 2, AYT }, - { "brk", "Send Telnet Break", 1, 0, NULL, 2, BREAK }, - { "break", NULL, 1, 0, NULL, 2, BREAK }, - { "ec", "Send Telnet Erase Character", 1, 0, NULL, 2, EC }, - { "el", "Send Telnet Erase Line", 1, 0, NULL, 2, EL }, - { "escape", "Send current escape character",1, 0, (int (*)(char *, ...))send_esc, 1, 0 }, - { "ga", "Send Telnet 'Go Ahead' sequence", 1, 0, NULL, 2, GA }, - { "ip", "Send Telnet Interrupt Process",1, 0, NULL, 2, IP }, - { "intp", NULL, 1, 0, NULL, 2, IP }, - { "interrupt", NULL, 1, 0, NULL, 2, IP }, - { "intr", NULL, 1, 0, NULL, 2, IP }, - { "nop", "Send Telnet 'No operation'", 1, 0, NULL, 2, NOP }, - { "eor", "Send Telnet 'End of Record'", 1, 0, NULL, 2, EOR }, - { "abort", "Send Telnet 'Abort Process'", 1, 0, NULL, 2, ABORT }, - { "susp", "Send Telnet 'Suspend Process'",1, 0, NULL, 2, SUSP }, - { "eof", "Send Telnet End of File Character", 1, 0, NULL, 2, xEOF }, - { "synch", "Perform Telnet 'Synch operation'", 1, 0, (int (*)(char *, ...))dosynch, 2, 0 }, - { "getstatus", "Send request for STATUS", 1, 0, (int (*)(char *, ...))get_status, 6, 0 }, - { "?", "Display send options", 0, 0, (int (*)(char *, ...))send_help, 0, 0 }, - { "help", NULL, 0, 0, (int (*)(char *, ...))send_help, 0, 0 }, - { "do", NULL, 0, 1, (int (*)(char *, ...))send_docmd, 3, 0 }, - { "dont", NULL, 0, 1, (int (*)(char *, ...))send_dontcmd, 3, 0 }, - { "will", NULL, 0, 1, (int (*)(char *, ...))send_willcmd, 3, 0 }, - { "wont", NULL, 0, 1, (int (*)(char *, ...))send_wontcmd, 3, 0 }, - { NULL, NULL, 0, 0, NULL, 0, 0 } -}; - -#define GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \ - sizeof(struct sendlist))) - -static int -sendcmd(int argc, char *argv[]) -{ - int count; /* how many bytes we are going to need to send */ - int i; - struct sendlist *s; /* pointer to current command */ - int success = 0; - int needconnect = 0; - - if (argc < 2) { - printf("need at least one argument for 'send' command\n"); - printf("'send ?' for help\n"); - return 0; - } - /* - * First, validate all the send arguments. - * In addition, we see how much space we are going to need, and - * whether or not we will be doing a "SYNCH" operation (which - * flushes the network queue). - */ - count = 0; - for (i = 1; i < argc; i++) { - s = GETSEND(argv[i]); - if (s == 0) { - printf("Unknown send argument '%s'\n'send ?' for help.\n", - argv[i]); - return 0; - } else if (Ambiguous((void *)s)) { - printf("Ambiguous send argument '%s'\n'send ?' for help.\n", - argv[i]); - return 0; - } - if (i + s->narg >= argc) { - fprintf(stderr, - "Need %d argument%s to 'send %s' command. 'send %s ?' for help.\n", - s->narg, s->narg == 1 ? "" : "s", s->name, s->name); - return 0; - } - count += s->nbyte; - if ((void *)s->handler == (void *)send_help) { - send_help(); - return 0; - } - - i += s->narg; - needconnect += s->needconnect; - } - if (!connected && needconnect) { - printf("?Need to be connected first.\n"); - printf("'send ?' for help\n"); - return 0; - } - /* Now, do we have enough room? */ - if (NETROOM() < count) { - printf("There is not enough room in the buffer TO the network\n"); - printf("to process your request. Nothing will be done.\n"); - printf("('send synch' will throw away most data in the network\n"); - printf("buffer, if this might help.)\n"); - return 0; - } - /* OK, they are all OK, now go through again and actually send */ - count = 0; - for (i = 1; i < argc; i++) { - if ((s = GETSEND(argv[i])) == 0) { - fprintf(stderr, "Telnet 'send' error - argument disappeared!\n"); - quit(); - /*NOTREACHED*/ - } - if (s->handler) { - count++; - success += (*s->handler)((s->narg > 0) ? argv[i+1] : 0, - (s->narg > 1) ? argv[i+2] : 0); - i += s->narg; - } else { - NET2ADD(IAC, s->what); - printoption("SENT", IAC, s->what); - } - } - return (count == success); -} - -static int -send_esc(void) -{ - NETADD(escape); - return 1; -} - -static int -send_docmd(char *name) -{ - return(send_tncmd(send_do, "do", name)); -} - -static int -send_dontcmd(name) - char *name; -{ - return(send_tncmd(send_dont, "dont", name)); -} - -static int -send_willcmd(char *name) -{ - return(send_tncmd(send_will, "will", name)); -} - -static int -send_wontcmd(char *name) -{ - return(send_tncmd(send_wont, "wont", name)); -} - -static int -send_tncmd(void (*func)(int, int), const char *cmd, char *name) -{ - char **cpp; - extern char *telopts[]; - int val = 0; - - if (isprefix(name, "help") || isprefix(name, "?")) { - int col, len; - - printf("usage: send %s <value|option>\n", cmd); - printf("\"value\" must be from 0 to 255\n"); - printf("Valid options are:\n\t"); - - col = 8; - for (cpp = telopts; *cpp; cpp++) { - len = strlen(*cpp) + 3; - if (col + len > 65) { - printf("\n\t"); - col = 8; - } - printf(" \"%s\"", *cpp); - col += len; - } - printf("\n"); - return 0; - } - cpp = (char **)genget(name, telopts, sizeof(char *)); - if (Ambiguous(cpp)) { - fprintf(stderr,"'%s': ambiguous argument ('send %s ?' for help).\n", - name, cmd); - return 0; - } - if (cpp) { - val = cpp - telopts; - } else { - char *cp = name; - - while (*cp >= '0' && *cp <= '9') { - val *= 10; - val += *cp - '0'; - cp++; - } - if (*cp != 0) { - fprintf(stderr, "'%s': unknown argument ('send %s ?' for help).\n", - name, cmd); - return 0; - } else if (val < 0 || val > 255) { - fprintf(stderr, "'%s': bad value ('send %s ?' for help).\n", - name, cmd); - return 0; - } - } - if (!connected) { - printf("?Need to be connected first.\n"); - return 0; - } - (*func)(val, 1); - return 1; -} - -static int -send_help(void) -{ - struct sendlist *s; /* pointer to current command */ - for (s = Sendlist; s->name; s++) { - if (s->help) - printf("%-15s %s\n", s->name, s->help); - } - return(0); -} - -/* - * The following are the routines and data structures referred - * to by the arguments to the "toggle" command. - */ - -static int -lclchars(void) -{ - donelclchars = 1; - return 1; -} - -static int -togdebug(void) -{ -#ifndef NOT43 - if (net > 0 && - (SetSockOpt(net, SOL_SOCKET, SO_DEBUG, telnet_debug)) < 0) { - perror("setsockopt (SO_DEBUG)"); - } -#else /* NOT43 */ - if (telnet_debug) { - if (net > 0 && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) - perror("setsockopt (SO_DEBUG)"); - } else - printf("Cannot turn off socket debugging\n"); -#endif /* NOT43 */ - return 1; -} - - -static int -togcrlf(void) -{ - if (crlf) { - printf("Will send carriage returns as telnet <CR><LF>.\n"); - } else { - printf("Will send carriage returns as telnet <CR><NUL>.\n"); - } - return 1; -} - -int binmode; - -static int -togbinary(int val) -{ - donebinarytoggle = 1; - - if (val >= 0) { - binmode = val; - } else { - if (my_want_state_is_will(TELOPT_BINARY) && - my_want_state_is_do(TELOPT_BINARY)) { - binmode = 1; - } else if (my_want_state_is_wont(TELOPT_BINARY) && - my_want_state_is_dont(TELOPT_BINARY)) { - binmode = 0; - } - val = binmode ? 0 : 1; - } - - if (val == 1) { - if (my_want_state_is_will(TELOPT_BINARY) && - my_want_state_is_do(TELOPT_BINARY)) { - printf("Already operating in binary mode with remote host.\n"); - } else { - printf("Negotiating binary mode with remote host.\n"); - tel_enter_binary(3); - } - } else { - if (my_want_state_is_wont(TELOPT_BINARY) && - my_want_state_is_dont(TELOPT_BINARY)) { - printf("Already in network ascii mode with remote host.\n"); - } else { - printf("Negotiating network ascii mode with remote host.\n"); - tel_leave_binary(3); - } - } - return 1; -} - -static int -togrbinary(int val) -{ - donebinarytoggle = 1; - - if (val == -1) - val = my_want_state_is_do(TELOPT_BINARY) ? 0 : 1; - - if (val == 1) { - if (my_want_state_is_do(TELOPT_BINARY)) { - printf("Already receiving in binary mode.\n"); - } else { - printf("Negotiating binary mode on input.\n"); - tel_enter_binary(1); - } - } else { - if (my_want_state_is_dont(TELOPT_BINARY)) { - printf("Already receiving in network ascii mode.\n"); - } else { - printf("Negotiating network ascii mode on input.\n"); - tel_leave_binary(1); - } - } - return 1; -} - -static int -togxbinary(int val) -{ - donebinarytoggle = 1; - - if (val == -1) - val = my_want_state_is_will(TELOPT_BINARY) ? 0 : 1; - - if (val == 1) { - if (my_want_state_is_will(TELOPT_BINARY)) { - printf("Already transmitting in binary mode.\n"); - } else { - printf("Negotiating binary mode on output.\n"); - tel_enter_binary(2); - } - } else { - if (my_want_state_is_wont(TELOPT_BINARY)) { - printf("Already transmitting in network ascii mode.\n"); - } else { - printf("Negotiating network ascii mode on output.\n"); - tel_leave_binary(2); - } - } - return 1; -} - -struct togglelist { - const char *name; /* name of toggle */ - const char *help; /* help message */ - int (*handler)(int); /* routine to do actual setting */ - int *variable; - const char *actionexplanation; -}; - -static struct togglelist Togglelist[] = { - { "autoflush", - "flushing of output when sending interrupt characters", - 0, - &autoflush, - "flush output when sending interrupt characters" }, - { "autosynch", - "automatic sending of interrupt characters in urgent mode", - 0, - &autosynch, - "send interrupt characters in urgent mode" }, -#ifdef AUTHENTICATION - { "autologin", - "automatic sending of login and/or authentication info", - 0, - &autologin, - "send login name and/or authentication information" }, - { "authdebug", - "Toggle authentication debugging", - auth_togdebug, - 0, - "print authentication debugging information" }, -#endif -#ifdef ENCRYPTION - { "autoencrypt", - "automatic encryption of data stream", - EncryptAutoEnc, - 0, - "automatically encrypt output" }, - { "autodecrypt", - "automatic decryption of data stream", - EncryptAutoDec, - 0, - "automatically decrypt input" }, - { "verbose_encrypt", - "Toggle verbose encryption output", - EncryptVerbose, - 0, - "print verbose encryption output" }, - { "encdebug", - "Toggle encryption debugging", - EncryptDebug, - 0, - "print encryption debugging information" }, -#endif /* ENCRYPTION */ - { "skiprc", - "don't read ~/.telnetrc file", - 0, - &skiprc, - "skip reading of ~/.telnetrc file" }, - { "binary", - "sending and receiving of binary data", - togbinary, - 0, - 0 }, - { "inbinary", - "receiving of binary data", - togrbinary, - 0, - 0 }, - { "outbinary", - "sending of binary data", - togxbinary, - 0, - 0 }, - { "crlf", - "sending carriage returns as telnet <CR><LF>", - (int (*)(int))togcrlf, - &crlf, - 0 }, - { "crmod", - "mapping of received carriage returns", - 0, - &crmod, - "map carriage return on output" }, - { "localchars", - "local recognition of certain control characters", - (int (*)(int))lclchars, - &localchars, - "recognize certain control characters" }, - { " ", "", NULL, NULL, NULL }, /* empty line */ - { "debug", - "debugging", - (int (*)(int))togdebug, - &telnet_debug, - "turn on socket level debugging" }, - { "netdata", - "printing of hexadecimal network data (debugging)", - 0, - &netdata, - "print hexadecimal representation of network traffic" }, - { "prettydump", - "output of \"netdata\" to user readable format (debugging)", - 0, - &prettydump, - "print user readable output for \"netdata\"" }, - { "options", - "viewing of options processing (debugging)", - 0, - &showoptions, - "show option processing" }, - { "termdata", - "(debugging) toggle printing of hexadecimal terminal data", - 0, - &termdata, - "print hexadecimal representation of terminal traffic" }, - { "?", - NULL, - (int (*)(int))togglehelp, - NULL, - NULL }, - { NULL, NULL, NULL, NULL, NULL }, - { "help", - NULL, - (int (*)(int))togglehelp, - NULL, - NULL }, - { NULL, NULL, NULL, NULL, NULL } -}; - -static int -togglehelp(void) -{ - struct togglelist *c; - - for (c = Togglelist; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s toggle %s\n", c->name, c->help); - else - printf("\n"); - } - } - printf("\n"); - printf("%-15s %s\n", "?", "display help information"); - return 0; -} - -static void -settogglehelp(int set) -{ - struct togglelist *c; - - for (c = Togglelist; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s %s %s\n", c->name, set ? "enable" : "disable", - c->help); - else - printf("\n"); - } - } -} - -#define GETTOGGLE(name) (struct togglelist *) \ - genget(name, (char **) Togglelist, sizeof(struct togglelist)) - -static int -toggle(int argc, char *argv[]) -{ - int retval = 1; - char *name; - struct togglelist *c; - - if (argc < 2) { - fprintf(stderr, - "Need an argument to 'toggle' command. 'toggle ?' for help.\n"); - return 0; - } - argc--; - argv++; - while (argc--) { - name = *argv++; - c = GETTOGGLE(name); - if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('toggle ?' for help).\n", - name); - return 0; - } else if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('toggle ?' for help).\n", - name); - return 0; - } else { - if (c->variable) { - *c->variable = !*c->variable; /* invert it */ - if (c->actionexplanation) { - printf("%s %s.\n", *c->variable? "Will" : "Won't", - c->actionexplanation); - } - } - if (c->handler) { - retval &= (*c->handler)(-1); - } - } - } - return retval; -} - -/* - * The following perform the "set" command. - */ - -#ifdef USE_TERMIO -struct termio new_tc = { 0, 0, 0, 0, {}, 0, 0 }; -#endif - -struct setlist { - const char *name; /* name */ - const char *help; /* help information */ - void (*handler)(char *); - cc_t *charp; /* where it is located at */ -}; - -static struct setlist Setlist[] = { -#ifdef KLUDGELINEMODE - { "echo", "character to toggle local echoing on/off", NULL, &echoc }, -#endif - { "escape", "character to escape back to telnet command mode", NULL, &escape }, - { "rlogin", "rlogin escape character", 0, &rlogin }, - { "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile}, - { " ", "", NULL, NULL }, - { " ", "The following need 'localchars' to be toggled true", NULL, NULL }, - { "flushoutput", "character to cause an Abort Output", NULL, termFlushCharp }, - { "interrupt", "character to cause an Interrupt Process", NULL, termIntCharp }, - { "quit", "character to cause an Abort process", NULL, termQuitCharp }, - { "eof", "character to cause an EOF ", NULL, termEofCharp }, - { " ", "", NULL, NULL }, - { " ", "The following are for local editing in linemode", NULL, NULL }, - { "erase", "character to use to erase a character", NULL, termEraseCharp }, - { "kill", "character to use to erase a line", NULL, termKillCharp }, - { "lnext", "character to use for literal next", NULL, termLiteralNextCharp }, - { "susp", "character to cause a Suspend Process", NULL, termSuspCharp }, - { "reprint", "character to use for line reprint", NULL, termRprntCharp }, - { "worderase", "character to use to erase a word", NULL, termWerasCharp }, - { "start", "character to use for XON", NULL, termStartCharp }, - { "stop", "character to use for XOFF", NULL, termStopCharp }, - { "forw1", "alternate end of line character", NULL, termForw1Charp }, - { "forw2", "alternate end of line character", NULL, termForw2Charp }, - { "ayt", "alternate AYT character", NULL, termAytCharp }, - { NULL, NULL, NULL, NULL } -}; - -static struct setlist * -getset(char *name) -{ - return (struct setlist *) - genget(name, (char **) Setlist, sizeof(struct setlist)); -} - -void -set_escape_char(char *s) -{ - if (rlogin != _POSIX_VDISABLE) { - rlogin = (s && *s) ? special(s) : _POSIX_VDISABLE; - printf("Telnet rlogin escape character is '%s'.\n", - control(rlogin)); - } else { - escape = (s && *s) ? special(s) : _POSIX_VDISABLE; - printf("Telnet escape character is '%s'.\n", control(escape)); - } -} - -static int -setcmd(int argc, char *argv[]) -{ - int value; - struct setlist *ct; - struct togglelist *c; - - if (argc < 2 || argc > 3) { - printf("Format is 'set Name Value'\n'set ?' for help.\n"); - return 0; - } - if ((argc == 2) && (isprefix(argv[1], "?") || isprefix(argv[1], "help"))) { - for (ct = Setlist; ct->name; ct++) - printf("%-15s %s\n", ct->name, ct->help); - printf("\n"); - settogglehelp(1); - printf("%-15s %s\n", "?", "display help information"); - return 0; - } - - ct = getset(argv[1]); - if (ct == 0) { - c = GETTOGGLE(argv[1]); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('set ?' for help).\n", - argv[1]); - return 0; - } else if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n", - argv[1]); - return 0; - } - if (c->variable) { - if ((argc == 2) || (strcmp("on", argv[2]) == 0)) - *c->variable = 1; - else if (strcmp("off", argv[2]) == 0) - *c->variable = 0; - else { - printf("Format is 'set togglename [on|off]'\n'set ?' for help.\n"); - return 0; - } - if (c->actionexplanation) { - printf("%s %s.\n", *c->variable? "Will" : "Won't", - c->actionexplanation); - } - } - if (c->handler) - (*c->handler)(1); - } else if (argc != 3) { - printf("Format is 'set Name Value'\n'set ?' for help.\n"); - return 0; - } else if (Ambiguous((void *)ct)) { - fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n", - argv[1]); - return 0; - } else if (ct->handler) { - (*ct->handler)(argv[2]); - printf("%s set to \"%s\".\n", ct->name, (char *)ct->charp); - } else { - if (strcmp("off", argv[2])) { - value = special(argv[2]); - } else { - value = _POSIX_VDISABLE; - } - *(ct->charp) = (cc_t)value; - printf("%s character is '%s'.\n", ct->name, control(*(ct->charp))); - } - slc_check(); - return 1; -} - -static int -unsetcmd(int argc, char *argv[]) -{ - struct setlist *ct; - struct togglelist *c; - char *name; - - if (argc < 2) { - fprintf(stderr, - "Need an argument to 'unset' command. 'unset ?' for help.\n"); - return 0; - } - if (isprefix(argv[1], "?") || isprefix(argv[1], "help")) { - for (ct = Setlist; ct->name; ct++) - printf("%-15s %s\n", ct->name, ct->help); - printf("\n"); - settogglehelp(0); - printf("%-15s %s\n", "?", "display help information"); - return 0; - } - - argc--; - argv++; - while (argc--) { - name = *argv++; - ct = getset(name); - if (ct == 0) { - c = GETTOGGLE(name); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('unset ?' for help).\n", - name); - return 0; - } else if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n", - name); - return 0; - } - if (c->variable) { - *c->variable = 0; - if (c->actionexplanation) { - printf("%s %s.\n", *c->variable? "Will" : "Won't", - c->actionexplanation); - } - } - if (c->handler) - (*c->handler)(0); - } else if (Ambiguous((void *)ct)) { - fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n", - name); - return 0; - } else if (ct->handler) { - (*ct->handler)(0); - printf("%s reset to \"%s\".\n", ct->name, (char *)ct->charp); - } else { - *(ct->charp) = _POSIX_VDISABLE; - printf("%s character is '%s'.\n", ct->name, control(*(ct->charp))); - } - } - return 1; -} - -/* - * The following are the data structures and routines for the - * 'mode' command. - */ -#ifdef KLUDGELINEMODE -extern int kludgelinemode; - -static int -dokludgemode(void) -{ - kludgelinemode = 1; - send_wont(TELOPT_LINEMODE, 1); - send_dont(TELOPT_SGA, 1); - send_dont(TELOPT_ECHO, 1); - return 1; -} -#endif - -static int -dolinemode(void) -{ -#ifdef KLUDGELINEMODE - if (kludgelinemode) - send_dont(TELOPT_SGA, 1); -#endif - send_will(TELOPT_LINEMODE, 1); - send_dont(TELOPT_ECHO, 1); - return 1; -} - -static int -docharmode(void) -{ -#ifdef KLUDGELINEMODE - if (kludgelinemode) - send_do(TELOPT_SGA, 1); - else -#endif - send_wont(TELOPT_LINEMODE, 1); - send_do(TELOPT_ECHO, 1); - return 1; -} - -static int -dolmmode(int bit, int on) -{ - unsigned char c; - extern int linemode; - - if (my_want_state_is_wont(TELOPT_LINEMODE)) { - printf("?Need to have LINEMODE option enabled first.\n"); - printf("'mode ?' for help.\n"); - return 0; - } - - if (on) - c = (linemode | bit); - else - c = (linemode & ~bit); - lm_mode(&c, 1, 1); - return 1; -} - -static int -setmod(int bit) -{ - return dolmmode(bit, 1); -} - -static int -clearmode(int bit) -{ - return dolmmode(bit, 0); -} - -struct modelist { - const char *name; /* command name */ - const char *help; /* help string */ - int (*handler)(int);/* routine which executes command */ - int needconnect; /* Do we need to be connected to execute? */ - int arg1; -}; - -static struct modelist ModeList[] = { - { "character", "Disable LINEMODE option", (int (*)(int))docharmode, 1, 0 }, -#ifdef KLUDGELINEMODE - { "", "(or disable obsolete line-by-line mode)", NULL, 0, 0 }, -#endif - { "line", "Enable LINEMODE option", (int (*)(int))dolinemode, 1, 0 }, -#ifdef KLUDGELINEMODE - { "", "(or enable obsolete line-by-line mode)", NULL, 0, 0 }, -#endif - { "", "", NULL, 0, 0 }, - { "", "These require the LINEMODE option to be enabled", NULL, 0, 0 }, - { "isig", "Enable signal trapping", setmod, 1, MODE_TRAPSIG }, - { "+isig", 0, setmod, 1, MODE_TRAPSIG }, - { "-isig", "Disable signal trapping", clearmode, 1, MODE_TRAPSIG }, - { "edit", "Enable character editing", setmod, 1, MODE_EDIT }, - { "+edit", 0, setmod, 1, MODE_EDIT }, - { "-edit", "Disable character editing", clearmode, 1, MODE_EDIT }, - { "softtabs", "Enable tab expansion", setmod, 1, MODE_SOFT_TAB }, - { "+softtabs", 0, setmod, 1, MODE_SOFT_TAB }, - { "-softtabs", "Disable character editing", clearmode, 1, MODE_SOFT_TAB }, - { "litecho", "Enable literal character echo", setmod, 1, MODE_LIT_ECHO }, - { "+litecho", 0, setmod, 1, MODE_LIT_ECHO }, - { "-litecho", "Disable literal character echo", clearmode, 1, MODE_LIT_ECHO }, - { "help", 0, (int (*)(int))modehelp, 0, 0 }, -#ifdef KLUDGELINEMODE - { "kludgeline", 0, (int (*)(int))dokludgemode, 1, 0 }, -#endif - { "", "", NULL, 0, 0 }, - { "?", "Print help information", (int (*)(int))modehelp, 0, 0 }, - { NULL, NULL, NULL, 0, 0 }, -}; - - -static int -modehelp(void) -{ - struct modelist *mt; - - printf("format is: 'mode Mode', where 'Mode' is one of:\n\n"); - for (mt = ModeList; mt->name; mt++) { - if (mt->help) { - if (*mt->help) - printf("%-15s %s\n", mt->name, mt->help); - else - printf("\n"); - } - } - return 0; -} - -#define GETMODECMD(name) (struct modelist *) \ - genget(name, (char **) ModeList, sizeof(struct modelist)) - -static int -modecmd(int argc, char *argv[]) -{ - struct modelist *mt; - - if (argc != 2) { - printf("'mode' command requires an argument\n"); - printf("'mode ?' for help.\n"); - } else if ((mt = GETMODECMD(argv[1])) == 0) { - fprintf(stderr, "Unknown mode '%s' ('mode ?' for help).\n", argv[1]); - } else if (Ambiguous((void *)mt)) { - fprintf(stderr, "Ambiguous mode '%s' ('mode ?' for help).\n", argv[1]); - } else if (mt->needconnect && !connected) { - printf("?Need to be connected first.\n"); - printf("'mode ?' for help.\n"); - } else if (mt->handler) { - return (*mt->handler)(mt->arg1); - } - return 0; -} - -/* - * The following data structures and routines implement the - * "display" command. - */ - -static int -display(int argc, char *argv[]) -{ - struct togglelist *tl; - struct setlist *sl; - -#define dotog(tl) if (tl->variable && tl->actionexplanation) { \ - if (*tl->variable) { \ - printf("will"); \ - } else { \ - printf("won't"); \ - } \ - printf(" %s.\n", tl->actionexplanation); \ - } - -#define doset(sl) if (sl->name && *sl->name != ' ') { \ - if (sl->handler == 0) \ - printf("%-15s [%s]\n", sl->name, control(*sl->charp)); \ - else \ - printf("%-15s \"%s\"\n", sl->name, (char *)sl->charp); \ - } - - if (argc == 1) { - for (tl = Togglelist; tl->name; tl++) { - dotog(tl); - } - printf("\n"); - for (sl = Setlist; sl->name; sl++) { - doset(sl); - } - } else { - int i; - - for (i = 1; i < argc; i++) { - sl = getset(argv[i]); - tl = GETTOGGLE(argv[i]); - if (Ambiguous((void *)sl) || Ambiguous((void *)tl)) { - printf("?Ambiguous argument '%s'.\n", argv[i]); - return 0; - } else if (!sl && !tl) { - printf("?Unknown argument '%s'.\n", argv[i]); - return 0; - } else { - if (tl) { - dotog(tl); - } - if (sl) { - doset(sl); - } - } - } - } -/*@*/optionstatus(); -#ifdef ENCRYPTION - EncryptStatus(); -#endif /* ENCRYPTION */ - return 1; -#undef doset -#undef dotog -} - -/* - * The following are the data structures, and many of the routines, - * relating to command processing. - */ - -/* - * Set the escape character. - */ -static int -setescape(int argc, char *argv[]) -{ - char *arg; - char buf[50]; - - printf( - "Deprecated usage - please use 'set escape%s%s' in the future.\n", - (argc > 2)? " ":"", (argc > 2)? argv[1]: ""); - if (argc > 2) - arg = argv[1]; - else { - printf("new escape character: "); - (void) fgets(buf, sizeof(buf), stdin); - arg = buf; - } - if (arg[0] != '\0') - escape = arg[0]; - (void) fflush(stdout); - return 1; -} - -static int -togcrmod(void) -{ - crmod = !crmod; - printf("Deprecated usage - please use 'toggle crmod' in the future.\n"); - printf("%s map carriage return on output.\n", crmod ? "Will" : "Won't"); - (void) fflush(stdout); - return 1; -} - -static int -suspend(void) -{ -#ifdef SIGTSTP - setcommandmode(); - { - long oldrows, oldcols, newrows, newcols, err_; - - err_ = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0; - (void) kill(0, SIGTSTP); - /* - * If we didn't get the window size before the SUSPEND, but we - * can get them now (?), then send the NAWS to make sure that - * we are set up for the right window size. - */ - if (TerminalWindowSize(&newrows, &newcols) && connected && - (err_ || ((oldrows != newrows) || (oldcols != newcols)))) { - sendnaws(); - } - } - /* reget parameters in case they were changed */ - TerminalSaveState(); - setconnmode(0); -#else - printf("Suspend is not supported. Try the '!' command instead\n"); -#endif - return 1; -} - -static int -shell(int argc, char *argv[] __unused) -{ - long oldrows, oldcols, newrows, newcols, err_; - - setcommandmode(); - - err_ = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0; - switch(vfork()) { - case -1: - perror("Fork failed\n"); - break; - - case 0: - { - /* - * Fire up the shell in the child. - */ - const char *shellp, *shellname; - - shellp = getenv("SHELL"); - if (shellp == NULL) - shellp = "/bin/sh"; - if ((shellname = strrchr(shellp, '/')) == 0) - shellname = shellp; - else - shellname++; - if (argc > 1) - execl(shellp, shellname, "-c", &saveline[1], (char *)0); - else - execl(shellp, shellname, (char *)0); - perror("Execl"); - _exit(1); - } - default: - (void)wait((int *)0); /* Wait for the shell to complete */ - - if (TerminalWindowSize(&newrows, &newcols) && connected && - (err_ || ((oldrows != newrows) || (oldcols != newcols)))) { - sendnaws(); - } - break; - } - return 1; -} - -static int -bye(int argc, char *argv[]) -{ - extern int resettermname; - - if (connected) { - (void) shutdown(net, 2); - printf("Connection closed.\n"); - (void) NetClose(net); - connected = 0; - resettermname = 1; -#ifdef AUTHENTICATION -#ifdef ENCRYPTION - auth_encrypt_connect(connected); -#endif -#endif - /* reset options */ - tninit(); - } - if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) { - longjmp(toplevel, 1); - /* NOTREACHED */ - } - return 1; /* Keep lint, etc., happy */ -} - -void -quit(void) -{ - (void) call(bye, "bye", "fromquit", 0); - Exit(0); -} - -static int -logout(void) -{ - send_do(TELOPT_LOGOUT, 1); - (void) netflush(); - return 1; -} - - -/* - * The SLC command. - */ - -struct slclist { - const char *name; - const char *help; - void (*handler)(int); - int arg; -}; - -static void slc_help(void); - -struct slclist SlcList[] = { - { "export", "Use local special character definitions", - (void (*)(int))slc_mode_export, 0 }, - { "import", "Use remote special character definitions", - slc_mode_import, 1 }, - { "check", "Verify remote special character definitions", - slc_mode_import, 0 }, - { "help", NULL, (void (*)(int))slc_help, 0 }, - { "?", "Print help information", (void (*)(int))slc_help, 0 }, - { NULL, NULL, NULL, 0 }, -}; - -static void -slc_help(void) -{ - struct slclist *c; - - for (c = SlcList; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s %s\n", c->name, c->help); - else - printf("\n"); - } - } -} - -static struct slclist * -getslc(char *name) -{ - return (struct slclist *) - genget(name, (char **) SlcList, sizeof(struct slclist)); -} - -static int -slccmd(int argc, char *argv[]) -{ - struct slclist *c; - - if (argc != 2) { - fprintf(stderr, - "Need an argument to 'slc' command. 'slc ?' for help.\n"); - return 0; - } - c = getslc(argv[1]); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('slc ?' for help).\n", - argv[1]); - return 0; - } - if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('slc ?' for help).\n", - argv[1]); - return 0; - } - (*c->handler)(c->arg); - slcstate(); - return 1; -} - -/* - * The ENVIRON command. - */ - -struct envlist { - const char *name; - const char *help; - void (*handler)(unsigned char *, unsigned char *); - int narg; -}; - -extern struct env_lst * - env_define(const unsigned char *, unsigned char *); -extern void - env_undefine(unsigned char *), - env_export(const unsigned char *), - env_unexport(const unsigned char *), - env_send(unsigned char *), -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - env_varval(unsigned char *), -#endif - env_list(void); -static void - env_help(void); - -struct envlist EnvList[] = { - { "define", "Define an environment variable", - (void (*)(unsigned char *, unsigned char *))env_define, 2 }, - { "undefine", "Undefine an environment variable", - (void (*)(unsigned char *, unsigned char *))env_undefine, 1 }, - { "export", "Mark an environment variable for automatic export", - (void (*)(unsigned char *, unsigned char *))env_export, 1 }, - { "unexport", "Don't mark an environment variable for automatic export", - (void (*)(unsigned char *, unsigned char *))env_unexport, 1 }, - { "send", "Send an environment variable", (void (*)(unsigned char *, unsigned char *))env_send, 1 }, - { "list", "List the current environment variables", - (void (*)(unsigned char *, unsigned char *))env_list, 0 }, -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - { "varval", "Reverse VAR and VALUE (auto, right, wrong, status)", - (void (*)(unsigned char *, unsigned char *))env_varval, 1 }, -#endif - { "help", NULL, (void (*)(unsigned char *, unsigned char *))env_help, 0 }, - { "?", "Print help information", (void (*)(unsigned char *, unsigned char *))env_help, 0 }, - { NULL, NULL, NULL, 0 }, -}; - -static void -env_help(void) -{ - struct envlist *c; - - for (c = EnvList; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s %s\n", c->name, c->help); - else - printf("\n"); - } - } -} - -static struct envlist * -getenvcmd(char *name) -{ - return (struct envlist *) - genget(name, (char **) EnvList, sizeof(struct envlist)); -} - -static int -env_cmd(int argc, char *argv[]) -{ - struct envlist *c; - - if (argc < 2) { - fprintf(stderr, - "Need an argument to 'environ' command. 'environ ?' for help.\n"); - return 0; - } - c = getenvcmd(argv[1]); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('environ ?' for help).\n", - argv[1]); - return 0; - } - if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('environ ?' for help).\n", - argv[1]); - return 0; - } - if (c->narg + 2 != argc) { - fprintf(stderr, - "Need %s%d argument%s to 'environ %s' command. 'environ ?' for help.\n", - c->narg < argc + 2 ? "only " : "", - c->narg, c->narg == 1 ? "" : "s", c->name); - return 0; - } - (*c->handler)(argv[2], argv[3]); - return 1; -} - -struct env_lst { - struct env_lst *next; /* pointer to next structure */ - struct env_lst *prev; /* pointer to previous structure */ - unsigned char *var; /* pointer to variable name */ - unsigned char *value; /* pointer to variable value */ - int export; /* 1 -> export with default list of variables */ - int welldefined; /* A well defined variable */ -}; - -struct env_lst envlisthead; - -static struct env_lst * -env_find(const unsigned char *var) -{ - struct env_lst *ep; - - for (ep = envlisthead.next; ep; ep = ep->next) { - if (strcmp(ep->var, var) == 0) - return(ep); - } - return(NULL); -} - -void -env_init(void) -{ - extern char **environ; - char **epp, *cp; - struct env_lst *ep; - - for (epp = environ; *epp; epp++) { - if ((cp = strchr(*epp, '='))) { - *cp = '\0'; - ep = env_define((unsigned char *)*epp, - (unsigned char *)cp+1); - ep->export = 0; - *cp = '='; - } - } - /* - * Special case for DISPLAY variable. If it is ":0.0" or - * "unix:0.0", we have to get rid of "unix" and insert our - * hostname. - */ - if ((ep = env_find("DISPLAY")) - && ((*ep->value == ':') - || (strncmp((char *)ep->value, "unix:", 5) == 0))) { - char hbuf[256+1]; - char *cp2 = strchr((char *)ep->value, ':'); - - gethostname(hbuf, 256); - hbuf[256] = '\0'; - cp = (char *)malloc(strlen(hbuf) + strlen(cp2) + 1); - sprintf((char *)cp, "%s%s", hbuf, cp2); - free(ep->value); - ep->value = (unsigned char *)cp; - } - /* - * If USER is not defined, but LOGNAME is, then add - * USER with the value from LOGNAME. By default, we - * don't export the USER variable. - */ - if ((env_find("USER") == NULL) && (ep = env_find("LOGNAME"))) { - env_define("USER", ep->value); - env_unexport("USER"); - } - env_export("DISPLAY"); - env_export("PRINTER"); -} - -struct env_lst * -env_define(const unsigned char *var, unsigned char *value) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) { - if (ep->var) - free(ep->var); - if (ep->value) - free(ep->value); - } else { - ep = (struct env_lst *)malloc(sizeof(struct env_lst)); - ep->next = envlisthead.next; - envlisthead.next = ep; - ep->prev = &envlisthead; - if (ep->next) - ep->next->prev = ep; - } - ep->welldefined = opt_welldefined(var); - ep->export = 1; - ep->var = strdup(var); - ep->value = strdup(value); - return(ep); -} - -void -env_undefine(unsigned char *var) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) { - ep->prev->next = ep->next; - if (ep->next) - ep->next->prev = ep->prev; - if (ep->var) - free(ep->var); - if (ep->value) - free(ep->value); - free(ep); - } -} - -void -env_export(const unsigned char *var) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) - ep->export = 1; -} - -void -env_unexport(const unsigned char *var) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) - ep->export = 0; -} - -void -env_send(unsigned char *var) -{ - struct env_lst *ep; - - if (my_state_is_wont(TELOPT_NEW_ENVIRON) -#ifdef OLD_ENVIRON - && my_state_is_wont(TELOPT_OLD_ENVIRON) -#endif - ) { - fprintf(stderr, - "Cannot send '%s': Telnet ENVIRON option not enabled\n", - var); - return; - } - ep = env_find(var); - if (ep == 0) { - fprintf(stderr, "Cannot send '%s': variable not defined\n", - var); - return; - } - env_opt_start_info(); - env_opt_add(ep->var); - env_opt_end(0); -} - -void -env_list(void) -{ - struct env_lst *ep; - - for (ep = envlisthead.next; ep; ep = ep->next) { - printf("%c %-20s %s\n", ep->export ? '*' : ' ', - ep->var, ep->value); - } -} - -unsigned char * -env_default(int init, int welldefined) -{ - static struct env_lst *nep = NULL; - - if (init) { - nep = &envlisthead; - return(NULL); - } - if (nep) { - while ((nep = nep->next)) { - if (nep->export && (nep->welldefined == welldefined)) - return(nep->var); - } - } - return(NULL); -} - -unsigned char * -env_getvalue(const unsigned char *var) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) - return(ep->value); - return(NULL); -} - -#if defined(OLD_ENVIRON) && defined(ENV_HACK) -void -env_varval(unsigned char *what) -{ - extern int old_env_var, old_env_value, env_auto; - int len = strlen((char *)what); - - if (len == 0) - goto unknown; - - if (strncasecmp((char *)what, "status", len) == 0) { - if (env_auto) - printf("%s%s", "VAR and VALUE are/will be ", - "determined automatically\n"); - if (old_env_var == OLD_ENV_VAR) - printf("VAR and VALUE set to correct definitions\n"); - else - printf("VAR and VALUE definitions are reversed\n"); - } else if (strncasecmp((char *)what, "auto", len) == 0) { - env_auto = 1; - old_env_var = OLD_ENV_VALUE; - old_env_value = OLD_ENV_VAR; - } else if (strncasecmp((char *)what, "right", len) == 0) { - env_auto = 0; - old_env_var = OLD_ENV_VAR; - old_env_value = OLD_ENV_VALUE; - } else if (strncasecmp((char *)what, "wrong", len) == 0) { - env_auto = 0; - old_env_var = OLD_ENV_VALUE; - old_env_value = OLD_ENV_VAR; - } else { -unknown: - printf("Unknown \"varval\" command. (\"auto\", \"right\", \"wrong\", \"status\")\n"); - } -} -#endif - -#ifdef AUTHENTICATION -/* - * The AUTHENTICATE command. - */ - -struct authlist { - const char *name; - const char *help; - int (*handler)(char *); - int narg; -}; - -extern int - auth_enable(char *), - auth_disable(char *), - auth_status(void); -static int - auth_help(void); - -struct authlist AuthList[] = { - { "status", "Display current status of authentication information", - (int (*)(char *))auth_status, 0 }, - { "disable", "Disable an authentication type ('auth disable ?' for more)", - auth_disable, 1 }, - { "enable", "Enable an authentication type ('auth enable ?' for more)", - auth_enable, 1 }, - { "help", NULL, (int (*)(char *))auth_help, 0 }, - { "?", "Print help information", (int (*)(char *))auth_help, 0 }, - { NULL, NULL, NULL, 0 }, -}; - -static int -auth_help(void) -{ - struct authlist *c; - - for (c = AuthList; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s %s\n", c->name, c->help); - else - printf("\n"); - } - } - return 0; -} - -int -auth_cmd(int argc, char *argv[]) -{ - struct authlist *c; - - if (argc < 2) { - fprintf(stderr, - "Need an argument to 'auth' command. 'auth ?' for help.\n"); - return 0; - } - - c = (struct authlist *) - genget(argv[1], (char **) AuthList, sizeof(struct authlist)); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('auth ?' for help).\n", - argv[1]); - return 0; - } - if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('auth ?' for help).\n", - argv[1]); - return 0; - } - if (c->narg + 2 != argc) { - fprintf(stderr, - "Need %s%d argument%s to 'auth %s' command. 'auth ?' for help.\n", - c->narg < argc + 2 ? "only " : "", - c->narg, c->narg == 1 ? "" : "s", c->name); - return 0; - } - return((*c->handler)(argv[2])); -} -#endif - -#ifdef ENCRYPTION -/* - * The ENCRYPT command. - */ - -struct encryptlist { - const char *name; - const char *help; - int (*handler)(char *, char *); - int needconnect; - int minarg; - int maxarg; -}; - -extern int - EncryptEnable(char *, char *), - EncryptDisable(char *, char *), - EncryptType(char *, char *), - EncryptStart(char *), - EncryptStartInput(void), - EncryptStartOutput(void), - EncryptStop(char *), - EncryptStopInput(void), - EncryptStopOutput(void), - EncryptStatus(void); -static int - EncryptHelp(void); - -struct encryptlist EncryptList[] = { - { "enable", "Enable encryption. ('encrypt enable ?' for more)", - EncryptEnable, 1, 1, 2 }, - { "disable", "Disable encryption. ('encrypt enable ?' for more)", - EncryptDisable, 0, 1, 2 }, - { "type", "Set encryption type. ('encrypt type ?' for more)", - EncryptType, 0, 1, 1 }, - { "start", "Start encryption. ('encrypt start ?' for more)", - (int (*)(char *, char *))EncryptStart, 1, 0, 1 }, - { "stop", "Stop encryption. ('encrypt stop ?' for more)", - (int (*)(char *, char *))EncryptStop, 1, 0, 1 }, - { "input", "Start encrypting the input stream", - (int (*)(char *, char *))EncryptStartInput, 1, 0, 0 }, - { "-input", "Stop encrypting the input stream", - (int (*)(char *, char *))EncryptStopInput, 1, 0, 0 }, - { "output", "Start encrypting the output stream", - (int (*)(char *, char *))EncryptStartOutput, 1, 0, 0 }, - { "-output", "Stop encrypting the output stream", - (int (*)(char *, char *))EncryptStopOutput, 1, 0, 0 }, - - { "status", "Display current status of authentication information", - (int (*)(char *, char *))EncryptStatus, 0, 0, 0 }, - { "help", NULL, (int (*)(char *, char *))EncryptHelp, 0, 0, 0 }, - { "?", "Print help information", (int (*)(char *, char *))EncryptHelp, 0, 0, 0 }, - { NULL, NULL, NULL, 0, 0, 0 }, -}; - -static int -EncryptHelp(void) -{ - struct encryptlist *c; - - for (c = EncryptList; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s %s\n", c->name, c->help); - else - printf("\n"); - } - } - return 0; -} - -static int -encrypt_cmd(int argc, char *argv[]) -{ - struct encryptlist *c; - - if (argc < 2) { - fprintf(stderr, - "Need an argument to 'encrypt' command. 'encrypt ?' for help.\n"); - return 0; - } - - c = (struct encryptlist *) - genget(argv[1], (char **) EncryptList, sizeof(struct encryptlist)); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('encrypt ?' for help).\n", - argv[1]); - return 0; - } - if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('encrypt ?' for help).\n", - argv[1]); - return 0; - } - argc -= 2; - if (argc < c->minarg || argc > c->maxarg) { - if (c->minarg == c->maxarg) { - fprintf(stderr, "Need %s%d argument%s ", - c->minarg < argc ? "only " : "", c->minarg, - c->minarg == 1 ? "" : "s"); - } else { - fprintf(stderr, "Need %s%d-%d arguments ", - c->maxarg < argc ? "only " : "", c->minarg, c->maxarg); - } - fprintf(stderr, "to 'encrypt %s' command. 'encrypt ?' for help.\n", - c->name); - return 0; - } - if (c->needconnect && !connected) { - if (!(argc && (isprefix(argv[2], "help") || isprefix(argv[2], "?")))) { - printf("?Need to be connected first.\n"); - return 0; - } - } - return ((*c->handler)(argc > 0 ? argv[2] : 0, - argc > 1 ? argv[3] : 0)); -} -#endif /* ENCRYPTION */ - -/* - * Print status about the connection. - */ -/*ARGSUSED*/ -static int -status(int argc, char *argv[]) -{ - if (connected) { - printf("Connected to %s.\n", hostname); - if ((argc < 2) || strcmp(argv[1], "notmuch")) { - int mode = getconnmode(); - - if (my_want_state_is_will(TELOPT_LINEMODE)) { - printf("Operating with LINEMODE option\n"); - printf("%s line editing\n", (mode&MODE_EDIT) ? "Local" : "No"); - printf("%s catching of signals\n", - (mode&MODE_TRAPSIG) ? "Local" : "No"); - slcstate(); -#ifdef KLUDGELINEMODE - } else if (kludgelinemode && my_want_state_is_dont(TELOPT_SGA)) { - printf("Operating in obsolete linemode\n"); -#endif - } else { - printf("Operating in single character mode\n"); - if (localchars) - printf("Catching signals locally\n"); - } - printf("%s character echo\n", (mode&MODE_ECHO) ? "Local" : "Remote"); - if (my_want_state_is_will(TELOPT_LFLOW)) - printf("%s flow control\n", (mode&MODE_FLOW) ? "Local" : "No"); -#ifdef ENCRYPTION - encrypt_display(); -#endif /* ENCRYPTION */ - } - } else { - printf("No connection.\n"); - } - printf("Escape character is '%s'.\n", control(escape)); - (void) fflush(stdout); - return 1; -} - -#ifdef SIGINFO -/* - * Function that gets called when SIGINFO is received. - */ -void -ayt_status(void) -{ - (void) call(status, "status", "notmuch", 0); -} -#endif - -static const char * -sockaddr_ntop(struct sockaddr *sa) -{ - void *addr; - static char addrbuf[INET6_ADDRSTRLEN]; - - switch (sa->sa_family) { - case AF_INET: - addr = &((struct sockaddr_in *)sa)->sin_addr; - break; - case AF_UNIX: - addr = &((struct sockaddr_un *)sa)->sun_path; - break; -#ifdef INET6 - case AF_INET6: - addr = &((struct sockaddr_in6 *)sa)->sin6_addr; - break; -#endif - default: - return NULL; - } - inet_ntop(sa->sa_family, addr, addrbuf, sizeof(addrbuf)); - return addrbuf; -} - -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) -static int -setpolicy(int lnet, struct addrinfo *res, char *policy) -{ - char *buf; - int level; - int optname; - - if (policy == NULL) - return 0; - - buf = ipsec_set_policy(policy, strlen(policy)); - if (buf == NULL) { - printf("%s\n", ipsec_strerror()); - return -1; - } - level = res->ai_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6; - optname = res->ai_family == AF_INET ? IP_IPSEC_POLICY : IPV6_IPSEC_POLICY; - if (setsockopt(lnet, level, optname, buf, ipsec_get_policylen(buf)) < 0){ - perror("setsockopt"); - return -1; - } - - free(buf); - return 0; -} -#endif - -#ifdef INET6 -/* - * When an Address Family related error happend, check if retry with - * another AF is possible or not. - * Return 1, if retry with another af is OK. Else, return 0. - */ -static int -switch_af(struct addrinfo **aip) -{ - int nextaf; - struct addrinfo *ai; - - ai = *aip; - nextaf = (ai->ai_family == AF_INET) ? AF_INET6 : AF_INET; - do - ai=ai->ai_next; - while (ai != NULL && ai->ai_family != nextaf); - *aip = ai; - if (*aip != NULL) { - return 1; - } - return 0; -} -#endif - -int -tn(int argc, char *argv[]) -{ - char *srp = 0; - int proto, opt; - int srlen; - int srcroute = 0, result; - char *cmd, *hostp = 0, *portp = 0, *user = 0; - char *src_addr = NULL; - struct addrinfo hints, *res, *res0 = NULL, *src_res, *src_res0 = NULL; - int error = 0, af_error = 0; - - if (connected) { - printf("?Already connected to %s\n", hostname); - setuid(getuid()); - return 0; - } - if (argc < 2) { - (void) strcpy(line, "open "); - printf("(to) "); - (void) fgets(&line[strlen(line)], sizeof(line) - strlen(line), stdin); - makeargv(); - argc = margc; - argv = margv; - } - cmd = *argv; - --argc; ++argv; - while (argc) { - if (strcmp(*argv, "help") == 0 || isprefix(*argv, "?")) - goto usage; - if (strcmp(*argv, "-l") == 0) { - --argc; ++argv; - if (argc == 0) - goto usage; - user = *argv++; - --argc; - continue; - } - if (strcmp(*argv, "-a") == 0) { - --argc; ++argv; - autologin = 1; - continue; - } - if (strcmp(*argv, "-s") == 0) { - --argc; ++argv; - if (argc == 0) - goto usage; - src_addr = *argv++; - --argc; - continue; - } - if (hostp == 0) { - hostp = *argv++; - --argc; - continue; - } - if (portp == 0) { - portp = *argv++; - --argc; - continue; - } - usage: - printf("usage: %s [-l user] [-a] [-s src_addr] host-name [port]\n", cmd); - setuid(getuid()); - return 0; - } - if (hostp == 0) - goto usage; - - if (src_addr != NULL) { - memset(&hints, 0, sizeof(hints)); - hints.ai_family = family; - hints.ai_socktype = SOCK_STREAM; - error = getaddrinfo(src_addr, 0, &hints, &src_res); - if (error == EAI_NODATA) { - hints.ai_flags = 0; - error = getaddrinfo(src_addr, 0, &hints, &src_res); - } - if (error != 0) { - fprintf(stderr, "%s: %s\n", src_addr, gai_strerror(error)); - if (error == EAI_SYSTEM) - fprintf(stderr, "%s: %s\n", src_addr, strerror(errno)); - setuid(getuid()); - return 0; - } - src_res0 = src_res; - } - if (hostp[0] == '/') { - struct sockaddr_un su; - - if (strlen(hostp) >= sizeof(su.sun_path)) { - fprintf(stderr, "hostname too long for unix domain socket: %s", - hostp); - goto fail; - } - memset(&su, 0, sizeof su); - su.sun_family = AF_UNIX; - strncpy(su.sun_path, hostp, sizeof su.sun_path); - printf("Trying %s...\n", hostp); - net = socket(PF_UNIX, SOCK_STREAM, 0); - if ( net < 0) { - perror("socket"); - goto fail; - } - if (connect(net, (struct sockaddr *)&su, sizeof su) == -1) { - perror(su.sun_path); - (void) NetClose(net); - goto fail; - } - goto af_unix; - } else if (hostp[0] == '@' || hostp[0] == '!') { - if ( -#ifdef INET6 - family == AF_INET6 || -#endif - (hostname = strrchr(hostp, ':')) == NULL) - hostname = strrchr(hostp, '@'); - if (hostname == NULL) { - hostname = hostp; - } else { - hostname++; - srcroute = 1; - } - } else - hostname = hostp; - if (!portp) { - telnetport = 1; - portp = strdup("telnet"); - } else if (*portp == '-') { - portp++; - telnetport = 1; - } else - telnetport = 0; - - memset(&hints, 0, sizeof(hints)); - hints.ai_flags = AI_NUMERICHOST; - hints.ai_family = family; - hints.ai_socktype = SOCK_STREAM; - error = getaddrinfo(hostname, portp, &hints, &res); - if (error) { - hints.ai_flags = AI_CANONNAME; - error = getaddrinfo(hostname, portp, &hints, &res); - } - if (error != 0) { - fprintf(stderr, "%s: %s\n", hostname, gai_strerror(error)); - if (error == EAI_SYSTEM) - fprintf(stderr, "%s: %s\n", hostname, strerror(errno)); - setuid(getuid()); - goto fail; - } - if (hints.ai_flags == AI_NUMERICHOST) { - /* hostname has numeric */ - int gni_err = 1; - - if (doaddrlookup) - gni_err = getnameinfo(res->ai_addr, res->ai_addr->sa_len, - _hostname, sizeof(_hostname) - 1, NULL, 0, - NI_NAMEREQD); - if (gni_err != 0) - (void) strncpy(_hostname, hostp, sizeof(_hostname) - 1); - _hostname[sizeof(_hostname)-1] = '\0'; - hostname = _hostname; - } else { - /* hostname has FQDN */ - if (srcroute != 0) - (void) strncpy(_hostname, hostname, sizeof(_hostname) - 1); - else if (res->ai_canonname != NULL) - strcpy(_hostname, res->ai_canonname); - else - (void) strncpy(_hostname, hostp, sizeof(_hostname) - 1); - _hostname[sizeof(_hostname)-1] = '\0'; - hostname = _hostname; - } - res0 = res; - #ifdef INET6 - af_again: - #endif - if (srcroute != 0) { - static char hostbuf[BUFSIZ]; - - if (af_error == 0) { /* save intermediate hostnames for retry */ - strncpy(hostbuf, hostp, BUFSIZ - 1); - hostbuf[BUFSIZ - 1] = '\0'; - } else - hostp = hostbuf; - srp = 0; - result = sourceroute(res, hostp, &srp, &srlen, &proto, &opt); - if (result == 0) { -#ifdef INET6 - if (family == AF_UNSPEC && af_error == 0 && - switch_af(&res) == 1) { - af_error = 1; - goto af_again; - } -#endif - setuid(getuid()); - goto fail; - } else if (result == -1) { - printf("Bad source route option: %s\n", hostp); - setuid(getuid()); - goto fail; - } - } - do { - printf("Trying %s...\n", sockaddr_ntop(res->ai_addr)); - net = socket(res->ai_family, res->ai_socktype, res->ai_protocol); - setuid(getuid()); - if (net < 0) { -#ifdef INET6 - if (family == AF_UNSPEC && af_error == 0 && - switch_af(&res) == 1) { - af_error = 1; - goto af_again; - } -#endif - perror("telnet: socket"); - goto fail; - } - if (srp && setsockopt(net, proto, opt, (char *)srp, srlen) < 0) - perror("setsockopt (source route)"); -#if defined(IPPROTO_IP) && defined(IP_TOS) - if (res->ai_family == PF_INET) { -# if defined(HAS_GETTOS) - struct tosent *tp; - if (tos < 0 && (tp = gettosbyname("telnet", "tcp"))) - tos = tp->t_tos; -# endif - if (tos < 0) - tos = IPTOS_LOWDELAY; - if (tos - && (setsockopt(net, IPPROTO_IP, IP_TOS, - (char *)&tos, sizeof(int)) < 0) - && (errno != ENOPROTOOPT)) - perror("telnet: setsockopt (IP_TOS) (ignored)"); - } -#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ - - if (telnet_debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) { - perror("setsockopt (SO_DEBUG)"); - } - - if (src_addr != NULL) { - for (src_res = src_res0; src_res != 0; src_res = src_res->ai_next) - if (src_res->ai_family == res->ai_family) - break; - if (src_res == NULL) - src_res = src_res0; - if (bind(net, src_res->ai_addr, src_res->ai_addrlen) == -1) { -#ifdef INET6 - if (family == AF_UNSPEC && af_error == 0 && - switch_af(&res) == 1) { - af_error = 1; - (void) NetClose(net); - goto af_again; - } -#endif - perror("bind"); - (void) NetClose(net); - goto fail; - } - } -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) - if (setpolicy(net, res, ipsec_policy_in) < 0) { - (void) NetClose(net); - goto fail; - } - if (setpolicy(net, res, ipsec_policy_out) < 0) { - (void) NetClose(net); - goto fail; - } -#endif - - if (connect(net, res->ai_addr, res->ai_addrlen) < 0) { - struct addrinfo *next; - - next = res->ai_next; - /* If already an af failed, only try same af. */ - if (af_error != 0) - while (next != NULL && next->ai_family != res->ai_family) - next = next->ai_next; - warn("connect to address %s", sockaddr_ntop(res->ai_addr)); - if (next != NULL) { - res = next; - (void) NetClose(net); - continue; - } - warnx("Unable to connect to remote host"); - (void) NetClose(net); - goto fail; - } - connected++; -#ifdef AUTHENTICATION -#ifdef ENCRYPTION - auth_encrypt_connect(connected); -#endif -#endif - } while (connected == 0); - freeaddrinfo(res0); - if (src_res0 != NULL) - freeaddrinfo(src_res0); - cmdrc(hostp, hostname); - af_unix: - if (autologin && user == NULL) { - struct passwd *pw; - - user = getenv("USER"); - if (user == NULL || - ((pw = getpwnam(user)) && pw->pw_uid != getuid())) { - if ((pw = getpwuid(getuid()))) - user = pw->pw_name; - else - user = NULL; - } - } - if (user) { - env_define("USER", user); - env_export("USER"); - } - (void) call(status, "status", "notmuch", 0); - if (setjmp(peerdied) == 0) - telnet(user); - (void) NetClose(net); - ExitString("Connection closed by foreign host.\n",1); - /*NOTREACHED*/ - fail: - if (res0 != NULL) - freeaddrinfo(res0); - if (src_res0 != NULL) - freeaddrinfo(src_res0); - return 0; -} - -#define HELPINDENT (sizeof ("connect")) - -static char - openhelp[] = "connect to a site", - closehelp[] = "close current connection", - logouthelp[] = "forcibly logout remote user and close the connection", - quithelp[] = "exit telnet", - statushelp[] = "print status information", - helphelp[] = "print help information", - sendhelp[] = "transmit special characters ('send ?' for more)", - sethelp[] = "set operating parameters ('set ?' for more)", - unsethelp[] = "unset operating parameters ('unset ?' for more)", - togglestring[] ="toggle operating parameters ('toggle ?' for more)", - slchelp[] = "change state of special charaters ('slc ?' for more)", - displayhelp[] = "display operating parameters", -#ifdef AUTHENTICATION - authhelp[] = "turn on (off) authentication ('auth ?' for more)", -#endif -#ifdef ENCRYPTION - encrypthelp[] = "turn on (off) encryption ('encrypt ?' for more)", -#endif /* ENCRYPTION */ - zhelp[] = "suspend telnet", -#ifdef OPIE - opiehelp[] = "compute response to OPIE challenge", -#endif - shellhelp[] = "invoke a subshell", - envhelp[] = "change environment variables ('environ ?' for more)", - modestring[] = "try to enter line or character mode ('mode ?' for more)"; - -static Command cmdtab[] = { - { "close", closehelp, bye, 1 }, - { "logout", logouthelp, (int (*)(int, char **))logout, 1 }, - { "display", displayhelp, display, 0 }, - { "mode", modestring, modecmd, 0 }, - { "telnet", openhelp, tn, 0 }, - { "open", openhelp, tn, 0 }, - { "quit", quithelp, (int (*)(int, char **))quit, 0 }, - { "send", sendhelp, sendcmd, 0 }, - { "set", sethelp, setcmd, 0 }, - { "unset", unsethelp, unsetcmd, 0 }, - { "status", statushelp, status, 0 }, - { "toggle", togglestring, toggle, 0 }, - { "slc", slchelp, slccmd, 0 }, -#ifdef AUTHENTICATION - { "auth", authhelp, auth_cmd, 0 }, -#endif -#ifdef ENCRYPTION - { "encrypt", encrypthelp, encrypt_cmd, 0 }, -#endif /* ENCRYPTION */ - { "z", zhelp, (int (*)(int, char **))suspend, 0 }, - { "!", shellhelp, shell, 1 }, - { "environ", envhelp, env_cmd, 0 }, - { "?", helphelp, help, 0 }, -#ifdef OPIE - { "opie", opiehelp, opie_calc, 0 }, -#endif - { NULL, NULL, NULL, 0 } -}; - -static char crmodhelp[] = "deprecated command -- use 'toggle crmod' instead"; -static char escapehelp[] = "deprecated command -- use 'set escape' instead"; - -static Command cmdtab2[] = { - { "help", 0, help, 0 }, - { "escape", escapehelp, setescape, 0 }, - { "crmod", crmodhelp, (int (*)(int, char **))togcrmod, 0 }, - { NULL, NULL, NULL, 0 } -}; - - -/* - * Call routine with argc, argv set from args (terminated by 0). - */ - -static int -call(intrtn_t routine, ...) -{ - va_list ap; - char *args[100]; - int argno = 0; - - va_start(ap, routine); - while ((args[argno++] = va_arg(ap, char *)) != 0); - va_end(ap); - return (*routine)(argno-1, args); -} - - -static Command * -getcmd(char *name) -{ - Command *cm; - - if ((cm = (Command *) genget(name, (char **) cmdtab, sizeof(Command)))) - return cm; - return (Command *) genget(name, (char **) cmdtab2, sizeof(Command)); -} - -void -command(int top, const char *tbuf, int cnt) -{ - Command *c; - - setcommandmode(); - if (!top) { - putchar('\n'); - } else { - (void) signal(SIGINT, SIG_DFL); - (void) signal(SIGQUIT, SIG_DFL); - } - for (;;) { - if (rlogin == _POSIX_VDISABLE) - printf("%s> ", prompt); - if (tbuf) { - char *cp; - cp = line; - while (cnt > 0 && (*cp++ = *tbuf++) != '\n') - cnt--; - tbuf = 0; - if (cp == line || *--cp != '\n' || cp == line) - goto getline; - *cp = '\0'; - if (rlogin == _POSIX_VDISABLE) - printf("%s\n", line); - } else { - getline: - if (rlogin != _POSIX_VDISABLE) - printf("%s> ", prompt); - if (fgets(line, sizeof(line), stdin) == NULL) { - if (feof(stdin) || ferror(stdin)) { - (void) quit(); - /*NOTREACHED*/ - } - break; - } - } - if (line[0] == 0) - break; - makeargv(); - if (margv[0] == 0) { - break; - } - c = getcmd(margv[0]); - if (Ambiguous((void *)c)) { - printf("?Ambiguous command\n"); - continue; - } - if (c == 0) { - printf("?Invalid command\n"); - continue; - } - if (c->needconnect && !connected) { - printf("?Need to be connected first.\n"); - continue; - } - if ((*c->handler)(margc, margv)) { - break; - } - } - if (!top) { - if (!connected) { - longjmp(toplevel, 1); - /*NOTREACHED*/ - } - setconnmode(0); - } -} - -/* - * Help command. - */ -static int -help(int argc, char *argv[]) -{ - Command *c; - - if (argc == 1) { - printf("Commands may be abbreviated. Commands are:\n\n"); - for (c = cmdtab; c->name; c++) - if (c->help) { - printf("%-*s\t%s\n", (int)HELPINDENT, c->name, - c->help); - } - return 0; - } - else while (--argc > 0) { - char *arg; - arg = *++argv; - c = getcmd(arg); - if (Ambiguous((void *)c)) - printf("?Ambiguous help command %s\n", arg); - else if (c == (Command *)0) - printf("?Invalid help command %s\n", arg); - else - printf("%s\n", c->help); - } - return 0; -} - -static char *rcname = 0; -static char rcbuf[128]; - -void -cmdrc(char *m1, char *m2) -{ - Command *c; - FILE *rcfile; - int gotmachine = 0; - int l1 = strlen(m1); - int l2 = strlen(m2); - char m1save[MAXHOSTNAMELEN]; - - if (skiprc) - return; - - strlcpy(m1save, m1, sizeof(m1save)); - m1 = m1save; - - if (rcname == 0) { - rcname = getenv("HOME"); - if (rcname && (strlen(rcname) + 10) < sizeof(rcbuf)) - strcpy(rcbuf, rcname); - else - rcbuf[0] = '\0'; - strcat(rcbuf, "/.telnetrc"); - rcname = rcbuf; - } - - if ((rcfile = fopen(rcname, "r")) == 0) { - return; - } - - for (;;) { - if (fgets(line, sizeof(line), rcfile) == NULL) - break; - if (line[0] == 0) - break; - if (line[0] == '#') - continue; - if (gotmachine) { - if (!isspace(line[0])) - gotmachine = 0; - } - if (gotmachine == 0) { - if (isspace(line[0])) - continue; - if (strncasecmp(line, m1, l1) == 0) - strncpy(line, &line[l1], sizeof(line) - l1); - else if (strncasecmp(line, m2, l2) == 0) - strncpy(line, &line[l2], sizeof(line) - l2); - else if (strncasecmp(line, "DEFAULT", 7) == 0) - strncpy(line, &line[7], sizeof(line) - 7); - else - continue; - if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n') - continue; - gotmachine = 1; - } - makeargv(); - if (margv[0] == 0) - continue; - c = getcmd(margv[0]); - if (Ambiguous((void *)c)) { - printf("?Ambiguous command: %s\n", margv[0]); - continue; - } - if (c == 0) { - printf("?Invalid command: %s\n", margv[0]); - continue; - } - /* - * This should never happen... - */ - if (c->needconnect && !connected) { - printf("?Need to be connected first for %s.\n", margv[0]); - continue; - } - (*c->handler)(margc, margv); - } - fclose(rcfile); -} - -/* - * Source route is handed in as - * [!]@hop1@hop2...[@|:]dst - * If the leading ! is present, it is a - * strict source route, otherwise it is - * assmed to be a loose source route. - * - * We fill in the source route option as - * hop1,hop2,hop3...dest - * and return a pointer to hop1, which will - * be the address to connect() to. - * - * Arguments: - * - * res: ponter to addrinfo structure which contains sockaddr to - * the host to connect to. - * - * arg: pointer to route list to decipher - * - * cpp: If *cpp is not equal to NULL, this is a - * pointer to a pointer to a character array - * that should be filled in with the option. - * - * lenp: pointer to an integer that contains the - * length of *cpp if *cpp != NULL. - * - * protop: pointer to an integer that should be filled in with - * appropriate protocol for setsockopt, as socket - * protocol family. - * - * optp: pointer to an integer that should be filled in with - * appropriate option for setsockopt, as socket protocol - * family. - * - * Return values: - * - * If the return value is 1, then all operations are - * successful. If the - * return value is -1, there was a syntax error in the - * option, either unknown characters, or too many hosts. - * If the return value is 0, one of the hostnames in the - * path is unknown, and *cpp is set to point to the bad - * hostname. - * - * *cpp: If *cpp was equal to NULL, it will be filled - * in with a pointer to our static area that has - * the option filled in. This will be 32bit aligned. - * - * *lenp: This will be filled in with how long the option - * pointed to by *cpp is. - * - * *protop: This will be filled in with appropriate protocol for - * setsockopt, as socket protocol family. - * - * *optp: This will be filled in with appropriate option for - * setsockopt, as socket protocol family. - */ -static int -sourceroute(struct addrinfo *ai, char *arg, char **cpp, int *lenp, int *protop, int *optp) -{ - static char buf[1024 + ALIGNBYTES]; /*XXX*/ - char *cp, *cp2, *lsrp, *ep; - struct sockaddr_in *_sin; -#ifdef INET6 - struct sockaddr_in6 *sin6; - struct cmsghdr *cmsg; -#endif - struct addrinfo hints, *res; - int error; - char c; - - /* - * Verify the arguments, and make sure we have - * at least 7 bytes for the option. - */ - if (cpp == NULL || lenp == NULL) - return -1; - if (*cpp != NULL) { - switch (res->ai_family) { - case AF_INET: - if (*lenp < 7) - return -1; - break; -#ifdef INET6 - case AF_INET6: - if (*lenp < (int)CMSG_SPACE(sizeof(struct ip6_rthdr) + - sizeof(struct in6_addr))) - return -1; - break; -#endif - } - } - /* - * Decide whether we have a buffer passed to us, - * or if we need to use our own static buffer. - */ - if (*cpp) { - lsrp = *cpp; - ep = lsrp + *lenp; - } else { - *cpp = lsrp = (char *)ALIGN(buf); - ep = lsrp + 1024; - } - - cp = arg; - -#ifdef INET6 - if (ai->ai_family == AF_INET6) { - cmsg = inet6_rthdr_init(*cpp, IPV6_RTHDR_TYPE_0); - if (*cp != '@') - return -1; - *protop = IPPROTO_IPV6; - *optp = IPV6_PKTOPTIONS; - } else -#endif - { - /* - * Next, decide whether we have a loose source - * route or a strict source route, and fill in - * the begining of the option. - */ - if (*cp == '!') { - cp++; - *lsrp++ = IPOPT_SSRR; - } else - *lsrp++ = IPOPT_LSRR; - - if (*cp != '@') - return -1; - - lsrp++; /* skip over length, we'll fill it in later */ - *lsrp++ = 4; - *protop = IPPROTO_IP; - *optp = IP_OPTIONS; - } - - cp++; - memset(&hints, 0, sizeof(hints)); - hints.ai_family = ai->ai_family; - hints.ai_socktype = SOCK_STREAM; - for (c = 0;;) { - if ( -#ifdef INET6 - ai->ai_family != AF_INET6 && -#endif - c == ':') - cp2 = 0; - else for (cp2 = cp; (c = *cp2); cp2++) { - if (c == ',') { - *cp2++ = '\0'; - if (*cp2 == '@') - cp2++; - } else if (c == '@') { - *cp2++ = '\0'; - } else if ( -#ifdef INET6 - ai->ai_family != AF_INET6 && -#endif - c == ':') { - *cp2++ = '\0'; - } else - continue; - break; - } - if (!c) - cp2 = 0; - - hints.ai_flags = AI_NUMERICHOST; - error = getaddrinfo(cp, NULL, &hints, &res); - if (error == EAI_NODATA) { - hints.ai_flags = 0; - error = getaddrinfo(cp, NULL, &hints, &res); - } - if (error != 0) { - fprintf(stderr, "%s: %s\n", cp, gai_strerror(error)); - if (error == EAI_SYSTEM) - fprintf(stderr, "%s: %s\n", cp, - strerror(errno)); - *cpp = cp; - return(0); - } -#ifdef INET6 - if (res->ai_family == AF_INET6) { - sin6 = (struct sockaddr_in6 *)res->ai_addr; - inet6_rthdr_add(cmsg, &sin6->sin6_addr, - IPV6_RTHDR_LOOSE); - } else -#endif - { - _sin = (struct sockaddr_in *)res->ai_addr; - memcpy(lsrp, (char *)&_sin->sin_addr, 4); - lsrp += 4; - } - if (cp2) - cp = cp2; - else - break; - /* - * Check to make sure there is space for next address - */ -#ifdef INET6 - if (res->ai_family == AF_INET6) { - if (((char *)CMSG_DATA(cmsg) + - sizeof(struct ip6_rthdr) + - ((inet6_rthdr_segments(cmsg) + 1) * - sizeof(struct in6_addr))) > ep) - return -1; - } else -#endif - if (lsrp + 4 > ep) - return -1; - freeaddrinfo(res); - } -#ifdef INET6 - if (res->ai_family == AF_INET6) { - inet6_rthdr_lasthop(cmsg, IPV6_RTHDR_LOOSE); - *lenp = cmsg->cmsg_len; - } else -#endif - { - if ((*(*cpp+IPOPT_OLEN) = lsrp - *cpp) <= 7) { - *cpp = 0; - *lenp = 0; - return -1; - } - *lsrp++ = IPOPT_NOP; /* 32 bit word align it */ - *lenp = lsrp - *cpp; - } - freeaddrinfo(res); - return 1; -} diff --git a/crypto/telnet/telnet/defines.h b/crypto/telnet/telnet/defines.h deleted file mode 100644 index 840666d..0000000 --- a/crypto/telnet/telnet/defines.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)defines.h 8.1 (Berkeley) 6/6/93 - * $FreeBSD$ - */ - -#define settimer(x) clocks.x = clocks.system++ - -#define NETADD(c) { *netoring.supply = c; ring_supplied(&netoring, 1); } -#define NET2ADD(c1,c2) { NETADD(c1); NETADD(c2); } -#define NETBYTES() (ring_full_count(&netoring)) -#define NETROOM() (ring_empty_count(&netoring)) - -#define TTYADD(c) if (!(SYNCHing||flushout)) { \ - *ttyoring.supply = c; \ - ring_supplied(&ttyoring, 1); \ - } -#define TTYBYTES() (ring_full_count(&ttyoring)) -#define TTYROOM() (ring_empty_count(&ttyoring)) - -/* Various modes */ -#define MODE_LOCAL_CHARS(m) ((m)&(MODE_EDIT|MODE_TRAPSIG)) -#define MODE_LOCAL_ECHO(m) ((m)&MODE_ECHO) -#define MODE_COMMAND_LINE(m) ((m)==-1) - -#define CONTROL(x) ((x)&0x1f) /* CTRL(x) is not portable */ diff --git a/crypto/telnet/telnet/externs.h b/crypto/telnet/telnet/externs.h deleted file mode 100644 index e9be27e..0000000 --- a/crypto/telnet/telnet/externs.h +++ /dev/null @@ -1,491 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)externs.h 8.3 (Berkeley) 5/30/95 - * $FreeBSD$ - */ - -#ifndef BSD -# define BSD 43 -#endif - -/* - * ucb stdio.h defines BSD as something weird - */ -#if defined(sun) && defined(__svr4__) -#define BSD 43 -#endif - -#ifndef USE_TERMIO -# if BSD > 43 || defined(SYSV_TERMIO) -# define USE_TERMIO -# endif -#endif - -#include <stdio.h> -#include <setjmp.h> -#include <sys/ioctl.h> -#include <errno.h> -#ifdef USE_TERMIO -# ifndef VINTR -# include <sys/termios.h> -# endif -# define termio termios -#endif -#if defined(NO_CC_T) || !defined(USE_TERMIO) -# if !defined(USE_TERMIO) -typedef char cc_t; -# else -typedef unsigned char cc_t; -# endif -#endif - -#include <string.h> - -#if defined(IPSEC) -#include <netinet6/ipsec.h> -#if defined(IPSEC_POLICY_IPSEC) -extern char *ipsec_policy_in; -extern char *ipsec_policy_out; -#endif -#endif - -#ifndef _POSIX_VDISABLE -# ifdef sun -# include <sys/param.h> /* pick up VDISABLE definition, mayby */ -# endif -# ifdef VDISABLE -# define _POSIX_VDISABLE VDISABLE -# else -# define _POSIX_VDISABLE ((cc_t)'\377') -# endif -#endif - -#define SUBBUFSIZE 256 - -#if !defined(P) -# ifdef __STDC__ -# define P(x) x -# else -# define P(x) () -# endif -#endif - -extern int - autologin, /* Autologin enabled */ - skiprc, /* Don't process the ~/.telnetrc file */ - eight, /* use eight bit mode (binary in and/or out */ - family, /* address family of peer */ - flushout, /* flush output */ - connected, /* Are we connected to the other side? */ - globalmode, /* Mode tty should be in */ - telnetport, /* Are we connected to the telnet port? */ - localflow, /* Flow control handled locally */ - restartany, /* If flow control, restart output on any character */ - localchars, /* we recognize interrupt/quit */ - donelclchars, /* the user has set "localchars" */ - showoptions, - net, /* Network file descriptor */ - tin, /* Terminal input file descriptor */ - tout, /* Terminal output file descriptor */ - crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ - autoflush, /* flush output when interrupting? */ - autosynch, /* send interrupt characters with SYNCH? */ - SYNCHing, /* Is the stream in telnet SYNCH mode? */ - donebinarytoggle, /* the user has put us in binary */ - dontlecho, /* do we suppress local echoing right now? */ - crmod, - netdata, /* Print out network data flow */ - prettydump, /* Print "netdata" output in user readable format */ - termdata, /* Print out terminal data flow */ - telnet_debug, /* Debug level */ - doaddrlookup, /* do a reverse lookup? */ - clienteof; /* Client received EOF */ - -extern cc_t escape; /* Escape to command mode */ -extern cc_t rlogin; /* Rlogin mode escape character */ -#ifdef KLUDGELINEMODE -extern cc_t echoc; /* Toggle local echoing */ -#endif - -extern char - *prompt; /* Prompt for command. */ - -extern char - doopt[], - dont[], - will[], - wont[], - options[], /* All the little options */ - *hostname; /* Who are we connected to? */ -#ifdef ENCRYPTION -extern void (*encrypt_output)(unsigned char *, int); -extern int (*decrypt_input)(int); -#endif /* ENCRYPTION */ - -/* - * We keep track of each side of the option negotiation. - */ - -#define MY_STATE_WILL 0x01 -#define MY_WANT_STATE_WILL 0x02 -#define MY_STATE_DO 0x04 -#define MY_WANT_STATE_DO 0x08 - -/* - * Macros to check the current state of things - */ - -#define my_state_is_do(opt) (options[opt]&MY_STATE_DO) -#define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) -#define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) -#define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) - -#define my_state_is_dont(opt) (!my_state_is_do(opt)) -#define my_state_is_wont(opt) (!my_state_is_will(opt)) -#define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) -#define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) - -#define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;} -#define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;} -#define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;} -#define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;} - -#define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;} -#define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;} -#define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;} -#define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;} - -/* - * Make everything symetrical - */ - -#define HIS_STATE_WILL MY_STATE_DO -#define HIS_WANT_STATE_WILL MY_WANT_STATE_DO -#define HIS_STATE_DO MY_STATE_WILL -#define HIS_WANT_STATE_DO MY_WANT_STATE_WILL - -#define his_state_is_do my_state_is_will -#define his_state_is_will my_state_is_do -#define his_want_state_is_do my_want_state_is_will -#define his_want_state_is_will my_want_state_is_do - -#define his_state_is_dont my_state_is_wont -#define his_state_is_wont my_state_is_dont -#define his_want_state_is_dont my_want_state_is_wont -#define his_want_state_is_wont my_want_state_is_dont - -#define set_his_state_do set_my_state_will -#define set_his_state_will set_my_state_do -#define set_his_want_state_do set_my_want_state_will -#define set_his_want_state_will set_my_want_state_do - -#define set_his_state_dont set_my_state_wont -#define set_his_state_wont set_my_state_dont -#define set_his_want_state_dont set_my_want_state_wont -#define set_his_want_state_wont set_my_want_state_dont - -#if defined(USE_TERMIO) -#define SIG_FUNC_RET void -#else -#define SIG_FUNC_RET int -#endif - -#ifdef SIGINFO -extern SIG_FUNC_RET - ayt_status(void); -#endif - -extern FILE - *NetTrace; /* Where debugging output goes */ -extern unsigned char - NetTraceFile[]; /* Name of file where debugging output goes */ -extern void - SetNetTrace(char *); /* Function to change where debugging goes */ - -extern jmp_buf - peerdied, - toplevel; /* For error conditions. */ - -extern void - command(int, const char *, int), - Dump(char, unsigned char *, int), - env_init(void), - Exit(int), - ExitString(const char *, int), - init_network(void), - init_sys(void), - init_telnet(void), - init_terminal(void), - intp(void), - optionstatus(void), - printoption(const char *, int, int), - printsub(char, unsigned char *, int), - quit(void), - sendabort(void), - sendbrk(void), - sendeof(void), - sendsusp(void), - sendnaws(void), - sendayt(void), - setconnmode(int), - setcommandmode(void), - set_escape_char(char *s), - setneturg(void), - sys_telnet_init(void), - telnet(char *), - tel_enter_binary(int), - tel_leave_binary(int), - TerminalFlushOutput(void), - TerminalNewMode(int), - TerminalRestoreState(void), - TerminalSaveState(void), - TerminalDefaultChars(void), - TerminalSpeeds(long *, long *), - tninit(void), - upcase(char *), - willoption(int), - wontoption(int); - -extern void - send_do(int, int), - send_dont(int, int), - send_will(int, int), - send_wont(int, int); - -extern void - lm_will(unsigned char *, int), - lm_wont(unsigned char *, int), - lm_do(unsigned char *, int), - lm_dont(unsigned char *, int), - lm_mode(unsigned char *, int, int); - -extern void - slc_init(void), - slcstate(void), - slc_mode_export(void), - slc_mode_import(int), - slc_import(int), - slc_export(void), - slc(unsigned char *, int), - slc_check(void), - slc_start_reply(void), - slc_add_reply(unsigned char, unsigned char, cc_t), - slc_end_reply(void); -extern int - getconnmode(void), - opt_welldefined(const char *), - NetClose(int), - netflush(void), - process_rings(int, int, int, int, int, int), - rlogin_susp(void), - SetSockOpt(int, int, int, int), - slc_update(void), - stilloob(void), - telrcv(void), - TerminalRead(char *, int), - TerminalWrite(char *, int), - TerminalAutoFlush(void), - TerminalWindowSize(long *, long *), - TerminalSpecialChars(int), - tn(int, char **), - ttyflush(int); - -extern void - env_opt(unsigned char *, int), - env_opt_start(void), - env_opt_start_info(void), - env_opt_add(unsigned char *), - env_opt_end(int); - -extern unsigned char - *env_default(int, int), - *env_getvalue(const unsigned char *); - -extern int - get_status(char *), - dosynch(char *); - -extern cc_t - *tcval(int); - -#ifndef USE_TERMIO - -extern struct tchars ntc; -extern struct ltchars nltc; -extern struct sgttyb nttyb; - -# define termEofChar ntc.t_eofc -# define termEraseChar nttyb.sg_erase -# define termFlushChar nltc.t_flushc -# define termIntChar ntc.t_intrc -# define termKillChar nttyb.sg_kill -# define termLiteralNextChar nltc.t_lnextc -# define termQuitChar ntc.t_quitc -# define termSuspChar nltc.t_suspc -# define termRprntChar nltc.t_rprntc -# define termWerasChar nltc.t_werasc -# define termStartChar ntc.t_startc -# define termStopChar ntc.t_stopc -# define termForw1Char ntc.t_brkc -extern cc_t termForw2Char; -extern cc_t termAytChar; - -# define termEofCharp (cc_t *)&ntc.t_eofc -# define termEraseCharp (cc_t *)&nttyb.sg_erase -# define termFlushCharp (cc_t *)&nltc.t_flushc -# define termIntCharp (cc_t *)&ntc.t_intrc -# define termKillCharp (cc_t *)&nttyb.sg_kill -# define termLiteralNextCharp (cc_t *)&nltc.t_lnextc -# define termQuitCharp (cc_t *)&ntc.t_quitc -# define termSuspCharp (cc_t *)&nltc.t_suspc -# define termRprntCharp (cc_t *)&nltc.t_rprntc -# define termWerasCharp (cc_t *)&nltc.t_werasc -# define termStartCharp (cc_t *)&ntc.t_startc -# define termStopCharp (cc_t *)&ntc.t_stopc -# define termForw1Charp (cc_t *)&ntc.t_brkc -# define termForw2Charp (cc_t *)&termForw2Char -# define termAytCharp (cc_t *)&termAytChar - -# else - -extern struct termio new_tc; - -# define termEofChar new_tc.c_cc[VEOF] -# define termEraseChar new_tc.c_cc[VERASE] -# define termIntChar new_tc.c_cc[VINTR] -# define termKillChar new_tc.c_cc[VKILL] -# define termQuitChar new_tc.c_cc[VQUIT] - -# ifndef VSUSP -extern cc_t termSuspChar; -# else -# define termSuspChar new_tc.c_cc[VSUSP] -# endif -# if defined(VFLUSHO) && !defined(VDISCARD) -# define VDISCARD VFLUSHO -# endif -# ifndef VDISCARD -extern cc_t termFlushChar; -# else -# define termFlushChar new_tc.c_cc[VDISCARD] -# endif -# ifndef VWERASE -extern cc_t termWerasChar; -# else -# define termWerasChar new_tc.c_cc[VWERASE] -# endif -# ifndef VREPRINT -extern cc_t termRprntChar; -# else -# define termRprntChar new_tc.c_cc[VREPRINT] -# endif -# ifndef VLNEXT -extern cc_t termLiteralNextChar; -# else -# define termLiteralNextChar new_tc.c_cc[VLNEXT] -# endif -# ifndef VSTART -extern cc_t termStartChar; -# else -# define termStartChar new_tc.c_cc[VSTART] -# endif -# ifndef VSTOP -extern cc_t termStopChar; -# else -# define termStopChar new_tc.c_cc[VSTOP] -# endif -# ifndef VEOL -extern cc_t termForw1Char; -# else -# define termForw1Char new_tc.c_cc[VEOL] -# endif -# ifndef VEOL2 -extern cc_t termForw2Char; -# else -# define termForw2Char new_tc.c_cc[VEOL] -# endif -# ifndef VSTATUS -extern cc_t termAytChar; -#else -# define termAytChar new_tc.c_cc[VSTATUS] -#endif - -# if defined(__STDC__) -# define termEofCharp &termEofChar -# define termEraseCharp &termEraseChar -# define termIntCharp &termIntChar -# define termKillCharp &termKillChar -# define termQuitCharp &termQuitChar -# define termSuspCharp &termSuspChar -# define termFlushCharp &termFlushChar -# define termWerasCharp &termWerasChar -# define termRprntCharp &termRprntChar -# define termLiteralNextCharp &termLiteralNextChar -# define termStartCharp &termStartChar -# define termStopCharp &termStopChar -# define termForw1Charp &termForw1Char -# define termForw2Charp &termForw2Char -# define termAytCharp &termAytChar -# else - /* Work around a compiler bug */ -# define termEofCharp 0 -# define termEraseCharp 0 -# define termIntCharp 0 -# define termKillCharp 0 -# define termQuitCharp 0 -# define termSuspCharp 0 -# define termFlushCharp 0 -# define termWerasCharp 0 -# define termRprntCharp 0 -# define termLiteralNextCharp 0 -# define termStartCharp 0 -# define termStopCharp 0 -# define termForw1Charp 0 -# define termForw2Charp 0 -# define termAytCharp 0 -# endif -#endif - - -/* Ring buffer structures which are shared */ - -extern Ring - netoring, - netiring, - ttyoring, - ttyiring; - -extern void - xmitAO(void), - xmitEC(void), - xmitEL(void); diff --git a/crypto/telnet/telnet/fdset.h b/crypto/telnet/telnet/fdset.h deleted file mode 100644 index 045bb72..0000000 --- a/crypto/telnet/telnet/fdset.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)fdset.h 8.1 (Berkeley) 6/6/93 - */ - -/* - * The following is defined just in case someone should want to run - * this telnet on a 4.2 system. - * - */ - -#ifndef FD_SETSIZE - -#define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n))) -#define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n))) -#define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n))) -#define FD_ZERO(p) ((p)->fds_bits[0] = 0) - -#endif diff --git a/crypto/telnet/telnet/general.h b/crypto/telnet/telnet/general.h deleted file mode 100644 index 4efa951..0000000 --- a/crypto/telnet/telnet/general.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)general.h 8.1 (Berkeley) 6/6/93 - */ - -/* - * Some general definitions. - */ - - -#define numberof(x) (sizeof x/sizeof x[0]) -#define highestof(x) (numberof(x)-1) - -#define ClearElement(x) memset((char *)&x, 0, sizeof x) -#define ClearArray(x) memset((char *)x, 0, sizeof x) diff --git a/crypto/telnet/telnet/main.c b/crypto/telnet/telnet/main.c deleted file mode 100644 index e3fe643..0000000 --- a/crypto/telnet/telnet/main.c +++ /dev/null @@ -1,373 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)main.c 8.3 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <sys/socket.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "ring.h" -#include "externs.h" -#include "defines.h" - -#ifdef AUTHENTICATION -#include <libtelnet/auth.h> -#endif -#ifdef ENCRYPTION -#include <libtelnet/encrypt.h> -#endif - -/* These values need to be the same as defined in libtelnet/kerberos5.c */ -/* Either define them in both places, or put in some common header file. */ -#define OPTS_FORWARD_CREDS 0x00000002 -#define OPTS_FORWARDABLE_CREDS 0x00000001 - -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) -char *ipsec_policy_in = NULL; -char *ipsec_policy_out = NULL; -#endif - -int family = AF_UNSPEC; - -/* - * Initialize variables. - */ -void -tninit(void) -{ - init_terminal(); - - init_network(); - - init_telnet(); - - init_sys(); -} - -static void -usage(void) -{ - fprintf(stderr, "usage: %s %s%s%s%s\n", - prompt, -#ifdef AUTHENTICATION - "[-4] [-6] [-8] [-E] [-K] [-L] [-N] [-S tos] [-X atype] [-c] [-d]", - "\n\t[-e char] [-k realm] [-l user] [-f/-F] [-n tracefile] ", -#else - "[-4] [-6] [-8] [-E] [-L] [-N] [-S tos] [-c] [-d]", - "\n\t[-e char] [-l user] [-n tracefile] ", -#endif - "[-r] [-s src_addr] [-u] ", -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) - "[-P policy] " -#endif -#ifdef ENCRYPTION - "[-y] [host-name [port]]" -#else /* ENCRYPTION */ - "[host-name [port]]" -#endif /* ENCRYPTION */ - ); - exit(1); -} - -/* - * main. Parse arguments, invoke the protocol or command parser. - */ - -int -main(int argc, char *argv[]) -{ - int ch; - char *user; - char *src_addr = NULL; -#ifdef FORWARD - extern int forward_flags; -#endif /* FORWARD */ - - tninit(); /* Clear out things */ - - TerminalSaveState(); - - if ((prompt = strrchr(argv[0], '/'))) - ++prompt; - else - prompt = argv[0]; - - user = NULL; - - rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE; -#ifdef AUTHENTICATION - autologin = 1; -#else - autologin = -1; -#endif - -#ifdef ENCRYPTION - encrypt_auto(1); - decrypt_auto(1); -#endif - -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) -#define IPSECOPT "P:" -#else -#define IPSECOPT -#endif - while ((ch = getopt(argc, argv, - "468EKLNS:X:acde:fFk:l:n:rs:t:uxy" IPSECOPT)) != -1) -#undef IPSECOPT - { - switch(ch) { - case '4': - family = AF_INET; - break; -#ifdef INET6 - case '6': - family = AF_INET6; - break; -#endif - case '8': - eight = 3; /* binary output and input */ - break; - case 'E': - rlogin = escape = _POSIX_VDISABLE; - break; - case 'K': -#ifdef AUTHENTICATION - autologin = 0; -#endif - break; - case 'L': - eight |= 2; /* binary output only */ - break; - case 'N': - doaddrlookup = 0; - break; - case 'S': - { -#ifdef HAS_GETTOS - extern int tos; - - if ((tos = parsetos(optarg, "tcp")) < 0) - fprintf(stderr, "%s%s%s%s\n", - prompt, ": Bad TOS argument '", - optarg, - "; will try to use default TOS"); -#else - fprintf(stderr, - "%s: Warning: -S ignored, no parsetos() support.\n", - prompt); -#endif - } - break; - case 'X': -#ifdef AUTHENTICATION - auth_disable_name(optarg); -#endif - break; - case 'a': -#ifdef AUTHENTICATION - /* It's the default now, so ignore */ -#else - autologin = 1; -#endif - break; - case 'c': - skiprc = 1; - break; - case 'd': - telnet_debug = 1; - break; - case 'e': - set_escape_char(optarg); - break; - case 'f': -#ifdef AUTHENTICATION -#if defined(KRB5) && defined(FORWARD) - if (forward_flags & OPTS_FORWARD_CREDS) { - fprintf(stderr, - "%s: Only one of -f and -F allowed.\n", - prompt); - usage(); - } - forward_flags |= OPTS_FORWARD_CREDS; -#else - fprintf(stderr, - "%s: Warning: -f ignored, no Kerberos V5 support.\n", - prompt); -#endif -#else - fprintf(stderr, - "%s: Warning: -f ignored, no Kerberos V5 support.\n", - prompt); -#endif - break; - case 'F': -#ifdef AUTHENTICATION -#if defined(KRB5) && defined(FORWARD) - if (forward_flags & OPTS_FORWARD_CREDS) { - fprintf(stderr, - "%s: Only one of -f and -F allowed.\n", - prompt); - usage(); - } - forward_flags |= OPTS_FORWARD_CREDS; - forward_flags |= OPTS_FORWARDABLE_CREDS; -#else - fprintf(stderr, - "%s: Warning: -F ignored, no Kerberos V5 support.\n", - prompt); -#endif -#else - fprintf(stderr, - "%s: Warning: -F ignored, no Kerberos V5 support.\n", - prompt); -#endif - break; - case 'k': -#ifdef AUTHENTICATION -#if defined(KRB4) - { - extern char *dest_realm, dst_realm_buf[], dst_realm_sz; - dest_realm = dst_realm_buf; - (void)strncpy(dest_realm, optarg, dst_realm_sz); - } -#else - fprintf(stderr, - "%s: Warning: -k ignored, no Kerberos V4 support.\n", - prompt); -#endif -#else - fprintf(stderr, - "%s: Warning: -k ignored, no Kerberos V4 support.\n", - prompt); -#endif - break; - case 'l': -#ifdef AUTHENTICATION - /* This is the default now, so ignore it */ -#else - autologin = 1; -#endif - user = optarg; - break; - case 'n': - SetNetTrace(optarg); - break; - case 'r': - rlogin = '~'; - break; - case 's': - src_addr = optarg; - break; - case 'u': - family = AF_UNIX; - break; - case 'x': -#ifndef ENCRYPTION - fprintf(stderr, - "%s: Warning: -x ignored, no ENCRYPT support.\n", - prompt); -#endif /* ENCRYPTION */ - break; - case 'y': -#ifdef ENCRYPTION - encrypt_auto(0); - decrypt_auto(0); -#else - fprintf(stderr, - "%s: Warning: -y ignored, no ENCRYPT support.\n", - prompt); -#endif /* ENCRYPTION */ - break; -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) - case 'P': - if (!strncmp("in", optarg, 2)) - ipsec_policy_in = strdup(optarg); - else if (!strncmp("out", optarg, 3)) - ipsec_policy_out = strdup(optarg); - else - usage(); - break; -#endif - case '?': - default: - usage(); - /* NOTREACHED */ - } - } - if (autologin == -1) - autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1; - - argc -= optind; - argv += optind; - - if (argc) { - char *args[9], **argp = args; - - if (argc > 2) - usage(); - *argp++ = prompt; - if (user) { - *argp++ = strdup("-l"); - *argp++ = user; - } - if (src_addr) { - *argp++ = strdup("-s"); - *argp++ = src_addr; - } - *argp++ = argv[0]; /* host */ - if (argc > 1) - *argp++ = argv[1]; /* port */ - *argp = 0; - - if (setjmp(toplevel) != 0) - Exit(0); - if (tn(argp - args, args) == 1) - return (0); - else - return (1); - } - (void)setjmp(toplevel); - for (;;) { - command(1, 0, 0); - } - return 0; -} diff --git a/crypto/telnet/telnet/network.c b/crypto/telnet/telnet/network.c deleted file mode 100644 index bb75d63..0000000 --- a/crypto/telnet/telnet/network.c +++ /dev/null @@ -1,182 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)network.c 8.2 (Berkeley) 12/15/93"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/time.h> - -#include <errno.h> -#include <stdlib.h> - -#include <arpa/telnet.h> -#include <unistd.h> - -#include "ring.h" - -#include "defines.h" -#include "externs.h" -#include "fdset.h" - -Ring netoring, netiring; -unsigned char netobuf[2*BUFSIZ], netibuf[BUFSIZ]; - -/* - * Initialize internal network data structures. - */ - -void -init_network(void) -{ - if (ring_init(&netoring, netobuf, sizeof netobuf) != 1) { - exit(1); - } - if (ring_init(&netiring, netibuf, sizeof netibuf) != 1) { - exit(1); - } - NetTrace = stdout; -} - - -/* - * Check to see if any out-of-band data exists on a socket (for - * Telnet "synch" processing). - */ - -int -stilloob(void) -{ - static struct timeval timeout = { 0, 0 }; - fd_set excepts; - int value; - - do { - FD_ZERO(&excepts); - FD_SET(net, &excepts); - value = select(net+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout); - } while ((value == -1) && (errno == EINTR)); - - if (value < 0) { - perror("select"); - (void) quit(); - /* NOTREACHED */ - } - if (FD_ISSET(net, &excepts)) { - return 1; - } else { - return 0; - } -} - - -/* - * setneturg() - * - * Sets "neturg" to the current location. - */ - -void -setneturg(void) -{ - ring_mark(&netoring); -} - - -/* - * netflush - * Send as much data as possible to the network, - * handling requests for urgent data. - * - * The return value indicates whether we did any - * useful work. - */ - -int -netflush(void) -{ - int n, n1; - -#ifdef ENCRYPTION - if (encrypt_output) - ring_encrypt(&netoring, encrypt_output); -#endif /* ENCRYPTION */ - if ((n1 = n = ring_full_consecutive(&netoring)) > 0) { - if (!ring_at_mark(&netoring)) { - n = send(net, (char *)netoring.consume, n, 0); /* normal write */ - } else { - /* - * In 4.2 (and 4.3) systems, there is some question about - * what byte in a sendOOB operation is the "OOB" data. - * To make ourselves compatible, we only send ONE byte - * out of band, the one WE THINK should be OOB (though - * we really have more the TCP philosophy of urgent data - * rather than the Unix philosophy of OOB data). - */ - n = send(net, (char *)netoring.consume, 1, MSG_OOB);/* URGENT data */ - } - } - if (n < 0) { - if (errno != ENOBUFS && errno != EWOULDBLOCK) { - setcommandmode(); - perror(hostname); - (void)NetClose(net); - ring_clear_mark(&netoring); - longjmp(peerdied, -1); - /*NOTREACHED*/ - } - n = 0; - } - if (netdata && n) { - Dump('>', netoring.consume, n); - } - if (n) { - ring_consumed(&netoring, n); - /* - * If we sent all, and more to send, then recurse to pick - * up the other half. - */ - if ((n1 == n) && ring_full_consecutive(&netoring)) { - (void) netflush(); - } - return 1; - } else { - return 0; - } -} diff --git a/crypto/telnet/telnet/ring.c b/crypto/telnet/telnet/ring.c deleted file mode 100644 index 6c2b7ef..0000000 --- a/crypto/telnet/telnet/ring.c +++ /dev/null @@ -1,322 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)ring.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * This defines a structure for a ring buffer. - * - * The circular buffer has two parts: - *((( - * full: [consume, supply) - * empty: [supply, consume) - *]]] - * - */ - -#include <errno.h> -#include <stdio.h> -#include <string.h> - -#ifdef size_t -#undef size_t -#endif - -#include <sys/types.h> -#ifndef FILIO_H -#include <sys/ioctl.h> -#endif -#include <sys/socket.h> - -#include "ring.h" -#include "general.h" - -/* Internal macros */ - -#if !defined(MIN) -#define MIN(a,b) (((a)<(b))? (a):(b)) -#endif /* !defined(MIN) */ - -#define ring_subtract(d,a,b) (((a)-(b) >= 0)? \ - (a)-(b): (((a)-(b))+(d)->size)) - -#define ring_increment(d,a,c) (((a)+(c) < (d)->top)? \ - (a)+(c) : (((a)+(c))-(d)->size)) - -#define ring_decrement(d,a,c) (((a)-(c) >= (d)->bottom)? \ - (a)-(c) : (((a)-(c))-(d)->size)) - - -/* - * The following is a clock, used to determine full, empty, etc. - * - * There is some trickiness here. Since the ring buffers are initialized - * to ZERO on allocation, we need to make sure, when interpreting the - * clock, that when the times are EQUAL, then the buffer is FULL. - */ -static u_long ring_clock = 0; - - -#define ring_empty(d) (((d)->consume == (d)->supply) && \ - ((d)->consumetime >= (d)->supplytime)) -#define ring_full(d) (((d)->supply == (d)->consume) && \ - ((d)->supplytime > (d)->consumetime)) - -/* Buffer state transition routines */ - -int -ring_init(Ring *ring, unsigned char *buffer, int count) -{ - memset((char *)ring, 0, sizeof *ring); - - ring->size = count; - - ring->supply = ring->consume = ring->bottom = buffer; - - ring->top = ring->bottom+ring->size; - -#ifdef ENCRYPTION - ring->clearto = 0; -#endif /* ENCRYPTION */ - - return 1; -} - -/* Mark routines */ - -/* - * Mark the most recently supplied byte. - */ - -void -ring_mark(Ring *ring) -{ - ring->mark = ring_decrement(ring, ring->supply, 1); -} - -/* - * Is the ring pointing to the mark? - */ - -int -ring_at_mark(Ring *ring) -{ - if (ring->mark == ring->consume) { - return 1; - } else { - return 0; - } -} - -/* - * Clear any mark set on the ring. - */ - -void -ring_clear_mark(Ring *ring) -{ - ring->mark = 0; -} - -/* - * Add characters from current segment to ring buffer. - */ -void -ring_supplied(Ring *ring, int count) -{ - ring->supply = ring_increment(ring, ring->supply, count); - ring->supplytime = ++ring_clock; -} - -/* - * We have just consumed "c" bytes. - */ -void -ring_consumed(Ring *ring, int count) -{ - if (count == 0) /* don't update anything */ - return; - - if (ring->mark && - (ring_subtract(ring, ring->mark, ring->consume) < count)) { - ring->mark = 0; - } -#ifdef ENCRYPTION - if (ring->consume < ring->clearto && - ring->clearto <= ring->consume + count) - ring->clearto = 0; - else if (ring->consume + count > ring->top && - ring->bottom <= ring->clearto && - ring->bottom + ((ring->consume + count) - ring->top)) - ring->clearto = 0; -#endif /* ENCRYPTION */ - ring->consume = ring_increment(ring, ring->consume, count); - ring->consumetime = ++ring_clock; - /* - * Try to encourage "ring_empty_consecutive()" to be large. - */ - if (ring_empty(ring)) { - ring->consume = ring->supply = ring->bottom; - } -} - - - -/* Buffer state query routines */ - - -/* Number of bytes that may be supplied */ -int -ring_empty_count(Ring *ring) -{ - if (ring_empty(ring)) { /* if empty */ - return ring->size; - } else { - return ring_subtract(ring, ring->consume, ring->supply); - } -} - -/* number of CONSECUTIVE bytes that may be supplied */ -int -ring_empty_consecutive(Ring *ring) -{ - if ((ring->consume < ring->supply) || ring_empty(ring)) { - /* - * if consume is "below" supply, or empty, then - * return distance to the top - */ - return ring_subtract(ring, ring->top, ring->supply); - } else { - /* - * else, return what we may. - */ - return ring_subtract(ring, ring->consume, ring->supply); - } -} - -/* Return the number of bytes that are available for consuming - * (but don't give more than enough to get to cross over set mark) - */ - -int -ring_full_count(Ring *ring) -{ - if ((ring->mark == 0) || (ring->mark == ring->consume)) { - if (ring_full(ring)) { - return ring->size; /* nothing consumed, but full */ - } else { - return ring_subtract(ring, ring->supply, ring->consume); - } - } else { - return ring_subtract(ring, ring->mark, ring->consume); - } -} - -/* - * Return the number of CONSECUTIVE bytes available for consuming. - * However, don't return more than enough to cross over set mark. - */ -int -ring_full_consecutive(Ring *ring) -{ - if ((ring->mark == 0) || (ring->mark == ring->consume)) { - if ((ring->supply < ring->consume) || ring_full(ring)) { - return ring_subtract(ring, ring->top, ring->consume); - } else { - return ring_subtract(ring, ring->supply, ring->consume); - } - } else { - if (ring->mark < ring->consume) { - return ring_subtract(ring, ring->top, ring->consume); - } else { /* Else, distance to mark */ - return ring_subtract(ring, ring->mark, ring->consume); - } - } -} - -/* - * Move data into the "supply" portion of of the ring buffer. - */ -void -ring_supply_data(Ring *ring, unsigned char *buffer, int count) -{ - int i; - - while (count) { - i = MIN(count, ring_empty_consecutive(ring)); - memcpy(ring->supply, buffer, i); - ring_supplied(ring, i); - count -= i; - buffer += i; - } -} - -#ifdef ENCRYPTION -void -ring_encrypt(Ring *ring, void (*encryptor)(unsigned char *, int)) -{ - unsigned char *s, *c; - - if (ring_empty(ring) || ring->clearto == ring->supply) - return; - - if (!(c = ring->clearto)) - c = ring->consume; - - s = ring->supply; - - if (s <= c) { - (*encryptor)(c, ring->top - c); - (*encryptor)(ring->bottom, s - ring->bottom); - } else - (*encryptor)(c, s - c); - - ring->clearto = ring->supply; -} - - void -ring_clearto(ring) - Ring *ring; -{ - if (!ring_empty(ring)) - ring->clearto = ring->supply; - else - ring->clearto = 0; -} -#endif /* ENCRYPTION */ diff --git a/crypto/telnet/telnet/ring.h b/crypto/telnet/telnet/ring.h deleted file mode 100644 index 516b7a5..0000000 --- a/crypto/telnet/telnet/ring.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)ring.h 8.1 (Berkeley) 6/6/93 - * $FreeBSD$ - */ - -#if defined(P) -# undef P -#endif - -#if defined(__STDC__) || defined(LINT_ARGS) -# define P(x) x -#else -# define P(x) () -#endif - -/* - * This defines a structure for a ring buffer. - * - * The circular buffer has two parts: - *((( - * full: [consume, supply) - * empty: [supply, consume) - *]]] - * - */ -typedef struct { - unsigned char *consume, /* where data comes out of */ - *supply, /* where data comes in to */ - *bottom, /* lowest address in buffer */ - *top, /* highest address+1 in buffer */ - *mark; /* marker (user defined) */ -#ifdef ENCRYPTION - unsigned char *clearto; /* Data to this point is clear text */ - unsigned char *encryyptedto; /* Data is encrypted to here */ -#endif /* ENCRYPTION */ - int size; /* size in bytes of buffer */ - u_long consumetime, /* help us keep straight full, empty, etc. */ - supplytime; -} Ring; - -/* Here are some functions and macros to deal with the ring buffer */ - -/* Initialization routine */ -extern int - ring_init(Ring *ring, unsigned char *buffer, int count); - -/* Data movement routines */ -extern void - ring_supply_data(Ring *ring, unsigned char *buffer, int count); -#ifdef notdef -extern void - ring_consume_data(Ring *ring, unsigned char *buffer, int count); -#endif - -/* Buffer state transition routines */ -extern void - ring_supplied(Ring *ring, int count), - ring_consumed(Ring *ring, int count); - -/* Buffer state query routines */ -extern int - ring_at_mark(Ring *), - ring_empty_count(Ring *ring), - ring_empty_consecutive(Ring *ring), - ring_full_count(Ring *ring), - ring_full_consecutive(Ring *ring); - -#ifdef ENCRYPTION -extern void - ring_encrypt(Ring *ring, void (*func)(unsigned char *, int)), - ring_clearto(Ring *ring); -#endif /* ENCRYPTION */ - -extern void - ring_clear_mark(Ring *), - ring_mark(Ring *); diff --git a/crypto/telnet/telnet/sys_bsd.c b/crypto/telnet/telnet/sys_bsd.c deleted file mode 100644 index 45ef1e2..0000000 --- a/crypto/telnet/telnet/sys_bsd.c +++ /dev/null @@ -1,1145 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)sys_bsd.c 8.4 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * The following routines try to encapsulate what is system dependent - * (at least between 4.x and dos) which is used in telnet.c. - */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <signal.h> -#include <stdlib.h> -#include <unistd.h> -#include <arpa/telnet.h> - -#include "ring.h" -#include "fdset.h" -#include "defines.h" -#include "externs.h" -#include "types.h" - -int - tout, /* Output file descriptor */ - tin, /* Input file descriptor */ - net; - -#ifndef USE_TERMIO -struct tchars otc = { 0 }, ntc = { 0 }; -struct ltchars oltc = { 0 }, nltc = { 0 }; -struct sgttyb ottyb = { 0 }, nttyb = { 0 }; -int olmode = 0; -# define cfgetispeed(ptr) (ptr)->sg_ispeed -# define cfgetospeed(ptr) (ptr)->sg_ospeed -# define old_tc ottyb - -#else /* USE_TERMIO */ -struct termio old_tc = { 0, 0, 0, 0, {}, 0, 0 }; - -# ifndef TCSANOW -# ifdef TCSETS -# define TCSANOW TCSETS -# define TCSADRAIN TCSETSW -# define tcgetattr(f, t) ioctl(f, TCGETS, (char *)t) -# else -# ifdef TCSETA -# define TCSANOW TCSETA -# define TCSADRAIN TCSETAW -# define tcgetattr(f, t) ioctl(f, TCGETA, (char *)t) -# else -# define TCSANOW TIOCSETA -# define TCSADRAIN TIOCSETAW -# define tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t) -# endif -# endif -# define tcsetattr(f, a, t) ioctl(f, a, (char *)t) -# define cfgetospeed(ptr) ((ptr)->c_cflag&CBAUD) -# ifdef CIBAUD -# define cfgetispeed(ptr) (((ptr)->c_cflag&CIBAUD) >> IBSHIFT) -# else -# define cfgetispeed(ptr) cfgetospeed(ptr) -# endif -# endif /* TCSANOW */ -# ifdef sysV88 -# define TIOCFLUSH TC_PX_DRAIN -# endif -#endif /* USE_TERMIO */ - -static fd_set *ibitsp, *obitsp, *xbitsp; -int fdsn; - -#ifdef SIGINT -static SIG_FUNC_RET intr(int); -#endif /* SIGINT */ -#ifdef SIGQUIT -static SIG_FUNC_RET intr2(int); -#endif /* SIGQUIT */ -#ifdef SIGTSTP -static SIG_FUNC_RET susp(int); -#endif /* SIGTSTP */ -#ifdef SIGINFO -static SIG_FUNC_RET ayt(int); -#endif - -void -init_sys(void) -{ - tout = fileno(stdout); - tin = fileno(stdin); - errno = 0; -} - -int -TerminalWrite(char *buf, int n) -{ - return write(tout, buf, n); -} - -int -TerminalRead(char *buf, int n) -{ - return read(tin, buf, n); -} - -/* - * - */ - -int -TerminalAutoFlush(void) -{ -#if defined(LNOFLSH) - int flush; - - ioctl(0, TIOCLGET, (char *)&flush); - return !(flush&LNOFLSH); /* if LNOFLSH, no autoflush */ -#else /* LNOFLSH */ - return 1; -#endif /* LNOFLSH */ -} - -#ifdef KLUDGELINEMODE -extern int kludgelinemode; -#endif -/* - * TerminalSpecialChars() - * - * Look at an input character to see if it is a special character - * and decide what to do. - * - * Output: - * - * 0 Don't add this character. - * 1 Do add this character - */ - -int -TerminalSpecialChars(int c) -{ - if (c == termIntChar) { - intp(); - return 0; - } else if (c == termQuitChar) { -#ifdef KLUDGELINEMODE - if (kludgelinemode) - sendbrk(); - else -#endif - sendabort(); - return 0; - } else if (c == termEofChar) { - if (my_want_state_is_will(TELOPT_LINEMODE)) { - sendeof(); - return 0; - } - return 1; - } else if (c == termSuspChar) { - sendsusp(); - return(0); - } else if (c == termFlushChar) { - xmitAO(); /* Transmit Abort Output */ - return 0; - } else if (!MODE_LOCAL_CHARS(globalmode)) { - if (c == termKillChar) { - xmitEL(); - return 0; - } else if (c == termEraseChar) { - xmitEC(); /* Transmit Erase Character */ - return 0; - } - } - return 1; -} - - -/* - * Flush output to the terminal - */ - -void -TerminalFlushOutput(void) -{ -#ifdef TIOCFLUSH - (void) ioctl(fileno(stdout), TIOCFLUSH, (char *) 0); -#else - (void) ioctl(fileno(stdout), TCFLSH, (char *) 0); -#endif -} - -void -TerminalSaveState(void) -{ -#ifndef USE_TERMIO - ioctl(0, TIOCGETP, (char *)&ottyb); - ioctl(0, TIOCGETC, (char *)&otc); - ioctl(0, TIOCGLTC, (char *)&oltc); - ioctl(0, TIOCLGET, (char *)&olmode); - - ntc = otc; - nltc = oltc; - nttyb = ottyb; - -#else /* USE_TERMIO */ - tcgetattr(0, &old_tc); - - new_tc = old_tc; - -#ifndef VDISCARD - termFlushChar = CONTROL('O'); -#endif -#ifndef VWERASE - termWerasChar = CONTROL('W'); -#endif -#ifndef VREPRINT - termRprntChar = CONTROL('R'); -#endif -#ifndef VLNEXT - termLiteralNextChar = CONTROL('V'); -#endif -#ifndef VSTART - termStartChar = CONTROL('Q'); -#endif -#ifndef VSTOP - termStopChar = CONTROL('S'); -#endif -#ifndef VSTATUS - termAytChar = CONTROL('T'); -#endif -#endif /* USE_TERMIO */ -} - -cc_t * -tcval(int func) -{ - switch(func) { - case SLC_IP: return(&termIntChar); - case SLC_ABORT: return(&termQuitChar); - case SLC_EOF: return(&termEofChar); - case SLC_EC: return(&termEraseChar); - case SLC_EL: return(&termKillChar); - case SLC_XON: return(&termStartChar); - case SLC_XOFF: return(&termStopChar); - case SLC_FORW1: return(&termForw1Char); -#ifdef USE_TERMIO - case SLC_FORW2: return(&termForw2Char); -# ifdef VDISCARD - case SLC_AO: return(&termFlushChar); -# endif -# ifdef VSUSP - case SLC_SUSP: return(&termSuspChar); -# endif -# ifdef VWERASE - case SLC_EW: return(&termWerasChar); -# endif -# ifdef VREPRINT - case SLC_RP: return(&termRprntChar); -# endif -# ifdef VLNEXT - case SLC_LNEXT: return(&termLiteralNextChar); -# endif -# ifdef VSTATUS - case SLC_AYT: return(&termAytChar); -# endif -#endif - - case SLC_SYNCH: - case SLC_BRK: - case SLC_EOR: - default: - return((cc_t *)0); - } -} - -void -TerminalDefaultChars(void) -{ -#ifndef USE_TERMIO - ntc = otc; - nltc = oltc; - nttyb.sg_kill = ottyb.sg_kill; - nttyb.sg_erase = ottyb.sg_erase; -#else /* USE_TERMIO */ - memcpy(new_tc.c_cc, old_tc.c_cc, sizeof(old_tc.c_cc)); -# ifndef VDISCARD - termFlushChar = CONTROL('O'); -# endif -# ifndef VWERASE - termWerasChar = CONTROL('W'); -# endif -# ifndef VREPRINT - termRprntChar = CONTROL('R'); -# endif -# ifndef VLNEXT - termLiteralNextChar = CONTROL('V'); -# endif -# ifndef VSTART - termStartChar = CONTROL('Q'); -# endif -# ifndef VSTOP - termStopChar = CONTROL('S'); -# endif -# ifndef VSTATUS - termAytChar = CONTROL('T'); -# endif -#endif /* USE_TERMIO */ -} - -/* - * TerminalNewMode - set up terminal to a specific mode. - * MODE_ECHO: do local terminal echo - * MODE_FLOW: do local flow control - * MODE_TRAPSIG: do local mapping to TELNET IAC sequences - * MODE_EDIT: do local line editing - * - * Command mode: - * MODE_ECHO|MODE_EDIT|MODE_FLOW|MODE_TRAPSIG - * local echo - * local editing - * local xon/xoff - * local signal mapping - * - * Linemode: - * local/no editing - * Both Linemode and Single Character mode: - * local/remote echo - * local/no xon/xoff - * local/no signal mapping - */ - -void -TerminalNewMode(int f) -{ - static int prevmode = 0; -#ifndef USE_TERMIO - struct tchars tc; - struct ltchars ltc; - struct sgttyb sb; - int lmode; -#else /* USE_TERMIO */ - struct termio tmp_tc; -#endif /* USE_TERMIO */ - int onoff; - int old; - cc_t esc; - - globalmode = f&~MODE_FORCE; - if (prevmode == f) - return; - - /* - * Write any outstanding data before switching modes - * ttyflush() returns 0 only when there is no more data - * left to write out, it returns -1 if it couldn't do - * anything at all, otherwise it returns 1 + the number - * of characters left to write. -#ifndef USE_TERMIO - * We would really like ask the kernel to wait for the output - * to drain, like we can do with the TCSADRAIN, but we don't have - * that option. The only ioctl that waits for the output to - * drain, TIOCSETP, also flushes the input queue, which is NOT - * what we want (TIOCSETP is like TCSADFLUSH). -#endif - */ - old = ttyflush(SYNCHing|flushout); - if (old < 0 || old > 1) { -#ifdef USE_TERMIO - tcgetattr(tin, &tmp_tc); -#endif /* USE_TERMIO */ - do { - /* - * Wait for data to drain, then flush again. - */ -#ifdef USE_TERMIO - tcsetattr(tin, TCSADRAIN, &tmp_tc); -#endif /* USE_TERMIO */ - old = ttyflush(SYNCHing|flushout); - } while (old < 0 || old > 1); - } - - old = prevmode; - prevmode = f&~MODE_FORCE; -#ifndef USE_TERMIO - sb = nttyb; - tc = ntc; - ltc = nltc; - lmode = olmode; -#else - tmp_tc = new_tc; -#endif - - if (f&MODE_ECHO) { -#ifndef USE_TERMIO - sb.sg_flags |= ECHO; -#else - tmp_tc.c_lflag |= ECHO; - tmp_tc.c_oflag |= ONLCR; - if (crlf) - tmp_tc.c_iflag |= ICRNL; -#endif - } else { -#ifndef USE_TERMIO - sb.sg_flags &= ~ECHO; -#else - tmp_tc.c_lflag &= ~ECHO; - tmp_tc.c_oflag &= ~ONLCR; -#endif - } - - if ((f&MODE_FLOW) == 0) { -#ifndef USE_TERMIO - tc.t_startc = _POSIX_VDISABLE; - tc.t_stopc = _POSIX_VDISABLE; -#else - tmp_tc.c_iflag &= ~(IXOFF|IXON); /* Leave the IXANY bit alone */ - } else { - if (restartany < 0) { - tmp_tc.c_iflag |= IXOFF|IXON; /* Leave the IXANY bit alone */ - } else if (restartany > 0) { - tmp_tc.c_iflag |= IXOFF|IXON|IXANY; - } else { - tmp_tc.c_iflag |= IXOFF|IXON; - tmp_tc.c_iflag &= ~IXANY; - } -#endif - } - - if ((f&MODE_TRAPSIG) == 0) { -#ifndef USE_TERMIO - tc.t_intrc = _POSIX_VDISABLE; - tc.t_quitc = _POSIX_VDISABLE; - tc.t_eofc = _POSIX_VDISABLE; - ltc.t_suspc = _POSIX_VDISABLE; - ltc.t_dsuspc = _POSIX_VDISABLE; -#else - tmp_tc.c_lflag &= ~ISIG; -#endif - localchars = 0; - } else { -#ifdef USE_TERMIO - tmp_tc.c_lflag |= ISIG; -#endif - localchars = 1; - } - - if (f&MODE_EDIT) { -#ifndef USE_TERMIO - sb.sg_flags &= ~CBREAK; - sb.sg_flags |= CRMOD; -#else - tmp_tc.c_lflag |= ICANON; -#endif - } else { -#ifndef USE_TERMIO - sb.sg_flags |= CBREAK; - if (f&MODE_ECHO) - sb.sg_flags |= CRMOD; - else - sb.sg_flags &= ~CRMOD; -#else - tmp_tc.c_lflag &= ~ICANON; - tmp_tc.c_iflag &= ~ICRNL; - tmp_tc.c_cc[VMIN] = 1; - tmp_tc.c_cc[VTIME] = 0; -#endif - } - - if ((f&(MODE_EDIT|MODE_TRAPSIG)) == 0) { -#ifndef USE_TERMIO - ltc.t_lnextc = _POSIX_VDISABLE; -#else -# ifdef VLNEXT - tmp_tc.c_cc[VLNEXT] = (cc_t)(_POSIX_VDISABLE); -# endif -#endif - } - - if (f&MODE_SOFT_TAB) { -#ifndef USE_TERMIO - sb.sg_flags |= XTABS; -#else -# ifdef OXTABS - tmp_tc.c_oflag |= OXTABS; -# endif -# ifdef TABDLY - tmp_tc.c_oflag &= ~TABDLY; - tmp_tc.c_oflag |= TAB3; -# endif -#endif - } else { -#ifndef USE_TERMIO - sb.sg_flags &= ~XTABS; -#else -# ifdef OXTABS - tmp_tc.c_oflag &= ~OXTABS; -# endif -# ifdef TABDLY - tmp_tc.c_oflag &= ~TABDLY; -# endif -#endif - } - - if (f&MODE_LIT_ECHO) { -#ifndef USE_TERMIO - lmode &= ~LCTLECH; -#else -# ifdef ECHOCTL - tmp_tc.c_lflag &= ~ECHOCTL; -# endif -#endif - } else { -#ifndef USE_TERMIO - lmode |= LCTLECH; -#else -# ifdef ECHOCTL - tmp_tc.c_lflag |= ECHOCTL; -# endif -#endif - } - - if (f == -1) { - onoff = 0; - } else { -#ifndef USE_TERMIO - if (f & MODE_OUTBIN) - lmode |= LLITOUT; - else - lmode &= ~LLITOUT; - - if (f & MODE_INBIN) - lmode |= LPASS8; - else - lmode &= ~LPASS8; -#else - if (f & MODE_INBIN) - tmp_tc.c_iflag &= ~ISTRIP; - else - tmp_tc.c_iflag |= ISTRIP; - if (f & MODE_OUTBIN) { - tmp_tc.c_cflag &= ~(CSIZE|PARENB); - tmp_tc.c_cflag |= CS8; - tmp_tc.c_oflag &= ~OPOST; - } else { - tmp_tc.c_cflag &= ~(CSIZE|PARENB); - tmp_tc.c_cflag |= old_tc.c_cflag & (CSIZE|PARENB); - tmp_tc.c_oflag |= OPOST; - } -#endif - onoff = 1; - } - - if (f != -1) { -#ifdef SIGINT - (void) signal(SIGINT, intr); -#endif -#ifdef SIGQUIT - (void) signal(SIGQUIT, intr2); -#endif -#ifdef SIGTSTP - (void) signal(SIGTSTP, susp); -#endif /* SIGTSTP */ -#ifdef SIGINFO - (void) signal(SIGINFO, ayt); -#endif -#if defined(USE_TERMIO) && defined(NOKERNINFO) - tmp_tc.c_lflag |= NOKERNINFO; -#endif - /* - * We don't want to process ^Y here. It's just another - * character that we'll pass on to the back end. It has - * to process it because it will be processed when the - * user attempts to read it, not when we send it. - */ -#ifndef USE_TERMIO - ltc.t_dsuspc = _POSIX_VDISABLE; -#else -# ifdef VDSUSP - tmp_tc.c_cc[VDSUSP] = (cc_t)(_POSIX_VDISABLE); -# endif -#endif -#ifdef USE_TERMIO - /* - * If the VEOL character is already set, then use VEOL2, - * otherwise use VEOL. - */ - esc = (rlogin != _POSIX_VDISABLE) ? rlogin : escape; - if ((tmp_tc.c_cc[VEOL] != esc) -# ifdef VEOL2 - && (tmp_tc.c_cc[VEOL2] != esc) -# endif - ) { - if (tmp_tc.c_cc[VEOL] == (cc_t)(_POSIX_VDISABLE)) - tmp_tc.c_cc[VEOL] = esc; -# ifdef VEOL2 - else if (tmp_tc.c_cc[VEOL2] == (cc_t)(_POSIX_VDISABLE)) - tmp_tc.c_cc[VEOL2] = esc; -# endif - } -#else - if (tc.t_brkc == (cc_t)(_POSIX_VDISABLE)) - tc.t_brkc = esc; -#endif - } else { -#ifdef SIGINFO - (void) signal(SIGINFO, (void (*)(int))ayt_status); -#endif -#ifdef SIGINT - (void) signal(SIGINT, SIG_DFL); -#endif -#ifdef SIGQUIT - (void) signal(SIGQUIT, SIG_DFL); -#endif -#ifdef SIGTSTP - (void) signal(SIGTSTP, SIG_DFL); -# ifndef SOLARIS - (void) sigsetmask(sigblock(0) & ~(1<<(SIGTSTP-1))); -# else /* SOLARIS */ - (void) sigrelse(SIGTSTP); -# endif /* SOLARIS */ -#endif /* SIGTSTP */ -#ifndef USE_TERMIO - ltc = oltc; - tc = otc; - sb = ottyb; - lmode = olmode; -#else - tmp_tc = old_tc; -#endif - } -#ifndef USE_TERMIO - ioctl(tin, TIOCLSET, (char *)&lmode); - ioctl(tin, TIOCSLTC, (char *)<c); - ioctl(tin, TIOCSETC, (char *)&tc); - ioctl(tin, TIOCSETN, (char *)&sb); -#else - if (tcsetattr(tin, TCSADRAIN, &tmp_tc) < 0) - tcsetattr(tin, TCSANOW, &tmp_tc); -#endif - - ioctl(tin, FIONBIO, (char *)&onoff); - ioctl(tout, FIONBIO, (char *)&onoff); - -} - -/* - * Try to guess whether speeds are "encoded" (4.2BSD) or just numeric (4.4BSD). - */ -#if B4800 != 4800 -#define DECODE_BAUD -#endif - -#ifdef DECODE_BAUD -#ifndef B7200 -#define B7200 B4800 -#endif - -#ifndef B14400 -#define B14400 B9600 -#endif - -#ifndef B19200 -# define B19200 B14400 -#endif - -#ifndef B28800 -#define B28800 B19200 -#endif - -#ifndef B38400 -# define B38400 B28800 -#endif - -#ifndef B57600 -#define B57600 B38400 -#endif - -#ifndef B76800 -#define B76800 B57600 -#endif - -#ifndef B115200 -#define B115200 B76800 -#endif - -#ifndef B230400 -#define B230400 B115200 -#endif - - -/* - * This code assumes that the values B0, B50, B75... - * are in ascending order. They do not have to be - * contiguous. - */ -struct termspeeds { - long speed; - long value; -} termspeeds[] = { - { 0, B0 }, { 50, B50 }, { 75, B75 }, - { 110, B110 }, { 134, B134 }, { 150, B150 }, - { 200, B200 }, { 300, B300 }, { 600, B600 }, - { 1200, B1200 }, { 1800, B1800 }, { 2400, B2400 }, - { 4800, B4800 }, { 7200, B7200 }, { 9600, B9600 }, - { 14400, B14400 }, { 19200, B19200 }, { 28800, B28800 }, - { 38400, B38400 }, { 57600, B57600 }, { 115200, B115200 }, - { 230400, B230400 }, { -1, B230400 } -}; -#endif /* DECODE_BAUD */ - -void -TerminalSpeeds(long *ispeed, long *ospeed) -{ -#ifdef DECODE_BAUD - struct termspeeds *tp; -#endif /* DECODE_BAUD */ - long in, out; - - out = cfgetospeed(&old_tc); - in = cfgetispeed(&old_tc); - if (in == 0) - in = out; - -#ifdef DECODE_BAUD - tp = termspeeds; - while ((tp->speed != -1) && (tp->value < in)) - tp++; - *ispeed = tp->speed; - - tp = termspeeds; - while ((tp->speed != -1) && (tp->value < out)) - tp++; - *ospeed = tp->speed; -#else /* DECODE_BAUD */ - *ispeed = in; - *ospeed = out; -#endif /* DECODE_BAUD */ -} - -int -TerminalWindowSize(long *rows, long *cols) -{ -#ifdef TIOCGWINSZ - struct winsize ws; - - if (ioctl(fileno(stdin), TIOCGWINSZ, (char *)&ws) >= 0) { - *rows = ws.ws_row; - *cols = ws.ws_col; - return 1; - } -#endif /* TIOCGWINSZ */ - return 0; -} - -int -NetClose(int fd) -{ - return close(fd); -} - -static void -NetNonblockingIO(int fd, int onoff) -{ - ioctl(fd, FIONBIO, (char *)&onoff); -} - - -/* - * Various signal handling routines. - */ - -/* ARGSUSED */ -static SIG_FUNC_RET -deadpeer(int sig __unused) -{ - setcommandmode(); - longjmp(peerdied, -1); -} - -/* ARGSUSED */ -SIG_FUNC_RET -intr(int sig __unused) -{ - if (localchars) { - intp(); - return; - } - setcommandmode(); - longjmp(toplevel, -1); -} - -/* ARGSUSED */ -SIG_FUNC_RET -intr2(int sig __unused) -{ - if (localchars) { -#ifdef KLUDGELINEMODE - if (kludgelinemode) - sendbrk(); - else -#endif - sendabort(); - return; - } -} - -#ifdef SIGTSTP -/* ARGSUSED */ -SIG_FUNC_RET -susp(int sig __unused) -{ - if ((rlogin != _POSIX_VDISABLE) && rlogin_susp()) - return; - if (localchars) - sendsusp(); -} -#endif - -#ifdef SIGWINCH -/* ARGSUSED */ -static SIG_FUNC_RET -sendwin(int sig __unused) -{ - if (connected) { - sendnaws(); - } -} -#endif - -#ifdef SIGINFO -/* ARGSUSED */ -SIG_FUNC_RET -ayt(int sig __unused) -{ - if (connected) - sendayt(); - else - ayt_status(); -} -#endif - - -void -sys_telnet_init(void) -{ - (void) signal(SIGINT, intr); - (void) signal(SIGQUIT, intr2); - (void) signal(SIGPIPE, deadpeer); -#ifdef SIGWINCH - (void) signal(SIGWINCH, sendwin); -#endif -#ifdef SIGTSTP - (void) signal(SIGTSTP, susp); -#endif -#ifdef SIGINFO - (void) signal(SIGINFO, ayt); -#endif - - setconnmode(0); - - NetNonblockingIO(net, 1); - -#if defined(SO_OOBINLINE) - if (SetSockOpt(net, SOL_SOCKET, SO_OOBINLINE, 1) == -1) { - perror("SetSockOpt"); - } -#endif /* defined(SO_OOBINLINE) */ -} - -/* - * Process rings - - * - * This routine tries to fill up/empty our various rings. - * - * The parameter specifies whether this is a poll operation, - * or a block-until-something-happens operation. - * - * The return value is 1 if something happened, 0 if not. - */ - -int -process_rings(int netin, int netout, int netex, int ttyin, int ttyout, int poll) -{ - int c; - int returnValue = 0; - static struct timeval TimeValue = { 0, 0 }; - int maxfd = -1; - int tmp; - - if ((netout || netin || netex) && net > maxfd) - maxfd = net; - - if (ttyout && tout > maxfd) - maxfd = tout; - if (ttyin && tin > maxfd) - maxfd = tin; - tmp = howmany(maxfd+1, NFDBITS) * sizeof(fd_mask); - if (tmp > fdsn) { - if (ibitsp) - free(ibitsp); - if (obitsp) - free(obitsp); - if (xbitsp) - free(xbitsp); - - fdsn = tmp; - if ((ibitsp = (fd_set *)malloc(fdsn)) == NULL) - err(1, "malloc"); - if ((obitsp = (fd_set *)malloc(fdsn)) == NULL) - err(1, "malloc"); - if ((xbitsp = (fd_set *)malloc(fdsn)) == NULL) - err(1, "malloc"); - memset(ibitsp, 0, fdsn); - memset(obitsp, 0, fdsn); - memset(xbitsp, 0, fdsn); - } - - if (netout) - FD_SET(net, obitsp); - if (ttyout) - FD_SET(tout, obitsp); - if (ttyin) - FD_SET(tin, ibitsp); - if (netin) - FD_SET(net, ibitsp); - if (netex) - FD_SET(net, xbitsp); - if ((c = select(maxfd + 1, ibitsp, obitsp, xbitsp, - (poll == 0)? (struct timeval *)0 : &TimeValue)) < 0) { - if (c == -1) { - /* - * we can get EINTR if we are in line mode, - * and the user does an escape (TSTP), or - * some other signal generator. - */ - if (errno == EINTR) { - return 0; - } - /* I don't like this, does it ever happen? */ - printf("sleep(5) from telnet, after select: %s\r\n", strerror(errno)); - sleep(5); - } - return 0; - } - - /* - * Any urgent data? - */ - if (FD_ISSET(net, xbitsp)) { - FD_CLR(net, xbitsp); - SYNCHing = 1; - (void) ttyflush(1); /* flush already enqueued data */ - } - - /* - * Something to read from the network... - */ - if (FD_ISSET(net, ibitsp)) { - int canread; - - FD_CLR(net, ibitsp); - canread = ring_empty_consecutive(&netiring); -#if !defined(SO_OOBINLINE) - /* - * In 4.2 (and some early 4.3) systems, the - * OOB indication and data handling in the kernel - * is such that if two separate TCP Urgent requests - * come in, one byte of TCP data will be overlaid. - * This is fatal for Telnet, but we try to live - * with it. - * - * In addition, in 4.2 (and...), a special protocol - * is needed to pick up the TCP Urgent data in - * the correct sequence. - * - * What we do is: if we think we are in urgent - * mode, we look to see if we are "at the mark". - * If we are, we do an OOB receive. If we run - * this twice, we will do the OOB receive twice, - * but the second will fail, since the second - * time we were "at the mark", but there wasn't - * any data there (the kernel doesn't reset - * "at the mark" until we do a normal read). - * Once we've read the OOB data, we go ahead - * and do normal reads. - * - * There is also another problem, which is that - * since the OOB byte we read doesn't put us - * out of OOB state, and since that byte is most - * likely the TELNET DM (data mark), we would - * stay in the TELNET SYNCH (SYNCHing) state. - * So, clocks to the rescue. If we've "just" - * received a DM, then we test for the - * presence of OOB data when the receive OOB - * fails (and AFTER we did the normal mode read - * to clear "at the mark"). - */ - if (SYNCHing) { - int atmark; - static int bogus_oob = 0, first = 1; - - ioctl(net, SIOCATMARK, (char *)&atmark); - if (atmark) { - c = recv(net, netiring.supply, canread, MSG_OOB); - if ((c == -1) && (errno == EINVAL)) { - c = recv(net, netiring.supply, canread, 0); - if (clocks.didnetreceive < clocks.gotDM) { - SYNCHing = stilloob(net); - } - } else if (first && c > 0) { - /* - * Bogosity check. Systems based on 4.2BSD - * do not return an error if you do a second - * recv(MSG_OOB). So, we do one. If it - * succeeds and returns exactly the same - * data, then assume that we are running - * on a broken system and set the bogus_oob - * flag. (If the data was different, then - * we probably got some valid new data, so - * increment the count...) - */ - int i; - i = recv(net, netiring.supply + c, canread - c, MSG_OOB); - if (i == c && - memcmp(netiring.supply, netiring.supply + c, i) == 0) { - bogus_oob = 1; - first = 0; - } else if (i < 0) { - bogus_oob = 0; - first = 0; - } else - c += i; - } - if (bogus_oob && c > 0) { - int i; - /* - * Bogosity. We have to do the read - * to clear the atmark to get out of - * an infinate loop. - */ - i = read(net, netiring.supply + c, canread - c); - if (i > 0) - c += i; - } - } else { - c = recv(net, netiring.supply, canread, 0); - } - } else { - c = recv(net, netiring.supply, canread, 0); - } - settimer(didnetreceive); -#else /* !defined(SO_OOBINLINE) */ - c = recv(net, (char *)netiring.supply, canread, 0); -#endif /* !defined(SO_OOBINLINE) */ - if (c < 0 && errno == EWOULDBLOCK) { - c = 0; - } else if (c <= 0) { - return -1; - } - if (netdata) { - Dump('<', netiring.supply, c); - } - if (c) - ring_supplied(&netiring, c); - returnValue = 1; - } - - /* - * Something to read from the tty... - */ - if (FD_ISSET(tin, ibitsp)) { - FD_CLR(tin, ibitsp); - c = TerminalRead(ttyiring.supply, ring_empty_consecutive(&ttyiring)); - if (c < 0 && errno == EIO) - c = 0; - if (c < 0 && errno == EWOULDBLOCK) { - c = 0; - } else { - /* EOF detection for line mode!!!! */ - if ((c == 0) && MODE_LOCAL_CHARS(globalmode) && isatty(tin)) { - /* must be an EOF... */ - *ttyiring.supply = termEofChar; - c = 1; - } - if (c <= 0) { - return -1; - } - if (termdata) { - Dump('<', ttyiring.supply, c); - } - ring_supplied(&ttyiring, c); - } - returnValue = 1; /* did something useful */ - } - - if (FD_ISSET(net, obitsp)) { - FD_CLR(net, obitsp); - returnValue |= netflush(); - } - if (FD_ISSET(tout, obitsp)) { - FD_CLR(tout, obitsp); - returnValue |= (ttyflush(SYNCHing|flushout) > 0); - } - - return returnValue; -} diff --git a/crypto/telnet/telnet/telnet.1 b/crypto/telnet/telnet/telnet.1 deleted file mode 100644 index 2bbc0b7..0000000 --- a/crypto/telnet/telnet/telnet.1 +++ /dev/null @@ -1,1424 +0,0 @@ -.\" Copyright (c) 1983, 1990, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)telnet.1 8.6 (Berkeley) 6/1/94 -.\" $FreeBSD$ -.\" -.Dd January 27, 2000 -.Dt TELNET 1 -.Os -.Sh NAME -.Nm telnet -.Nd user interface to the -.Tn TELNET -protocol -.Sh SYNOPSIS -.Nm -.Op Fl 468EFKLNacdfruxy -.Op Fl S Ar tos -.Op Fl X Ar authtype -.Op Fl e Ar escapechar -.Op Fl k Ar realm -.Op Fl l Ar user -.Op Fl n Ar tracefile -.Op Fl s Ar src_addr -.Oo -.Ar host -.Op Ar port -.Oc -.Sh DESCRIPTION -The -.Nm -command -is used to communicate with another host using the -.Tn TELNET -protocol. -If -.Nm -is invoked without the -.Ar host -argument, it enters command mode, -indicated by its prompt -.Pq Dq Li telnet\&> . -In this mode, it accepts and executes the commands listed below. -If it is invoked with arguments, it performs an -.Ic open -command with those arguments. -.Pp -Options: -.Bl -tag -width indent -.It Fl 4 -Forces -.Nm -to use IPv4 addresses only. -.It Fl 6 -Forces -.Nm -to use IPv6 addresses only. -.It Fl 8 -Specifies an 8-bit data path. This causes an attempt to -negotiate the -.Dv TELNET BINARY -option on both input and output. -.It Fl E -Stops any character from being recognized as an escape character. -.It Fl F -If Kerberos V5 authentication is being used, the -.Fl F -option allows the local credentials to be forwarded -to the remote system, including any credentials that -have already been forwarded into the local environment. -.It Fl K -Specifies no automatic login to the remote system. -.It Fl L -Specifies an 8-bit data path on output. This causes the -.Dv BINARY -option to be negotiated on output. -.It Fl N -Prevents IP address to name lookup when destination host is given -as an IP address. -.It Fl S Ar tos -Sets the IP type-of-service (TOS) option for the telnet -connection to the value -.Ar tos , -which can be a numeric TOS value -or, on systems that support it, a symbolic -TOS name found in the -.Pa /etc/iptos -file. -.It Fl X Ar atype -Disables the -.Ar atype -type of authentication. -.It Fl a -Attempt automatic login. -This is now the default, so this option is ignored. -Currently, this sends the user name via the -.Ev USER -variable -of the -.Ev ENVIRON -option if supported by the remote system. -The name used is that of the current user as returned by -.Xr getlogin 2 -if it agrees with the current user ID, -otherwise it is the name associated with the user ID. -.It Fl c -Disables the reading of the user's -.Pa \&.telnetrc -file. (See the -.Ic toggle skiprc -command on this man page.) -.It Fl d -Sets the initial value of the -.Ic debug -toggle to -.Dv TRUE . -.It Fl e Ar escapechar -Sets the initial -.Nm -escape character to -.Ar escapechar . -If -.Ar escapechar -is omitted, then -there will be no escape character. -.It Fl f -If Kerberos V5 authentication is being used, the -.Fl f -option allows the local credentials to be forwarded to the remote system. -.It Fl k Ar realm -If Kerberos authentication is being used, the -.Fl k -option requests that -.Nm -obtain tickets for the remote host in -realm -.Ar realm -instead of the remote host's realm, as determined by -.Xr krb_realmofhost 3 . -.It Fl l Ar user -When connecting to the remote system, if the remote system -understands the -.Ev ENVIRON -option, then -.Ar user -will be sent to the remote system as the value for the variable -.Ev USER . -This option implies the -.Fl a -option. -This option may also be used with the -.Ic open -command. -.It Fl n Ar tracefile -Opens -.Ar tracefile -for recording trace information. -See the -.Ic set tracefile -command below. -.It Fl r -Specifies a user interface similar to -.Xr rlogin 1 . -In this -mode, the escape character is set to the tilde (~) character, -unless modified by the -.Fl e -option. -.It Fl s Ar src_addr -Set the source IP address for the -.Nm -connection to -.Ar src_addr , -which can be an IP address or a host name. -.It Fl u -Forces -.Nm -to use -.Dv AF_UNIX -addresses only (e.g., -.Ux -domain sockets, accessed with a file path). -.It Fl x -Turns on encryption of the data stream if possible. -This is now the default, so this option is ignored. -.It Fl y -Suppresses encryption of the data stream. -.It Ar host -Indicates the official name, an alias, or the Internet address -of a remote host. -If -.Ar host -starts with a -.Ql / , -.Nm -establishes a connection to the corresponding named socket. -.It Ar port -Indicates a port number (address of an application). If a number is -not specified, the default -.Nm -port is used. -.El -.Pp -When in rlogin mode, a line of the form ~. disconnects from the -remote host; ~ is the -.Nm -escape character. -Similarly, the line ~^Z suspends the -.Nm -session. -The line ~^] escapes to the normal -.Nm -escape prompt. -.Pp -Once a connection has been opened, -.Nm -will attempt to enable the -.Dv TELNET LINEMODE -option. -If this fails, then -.Nm -will revert to one of two input modes: -either \*(Lqcharacter at a time\*(Rq -or \*(Lqold line by line\*(Rq -depending on what the remote system supports. -.Pp -When -.Dv LINEMODE -is enabled, character processing is done on the -local system, under the control of the remote system. When input -editing or character echoing is to be disabled, the remote system -will relay that information. The remote system will also relay -changes to any special characters that happen on the remote -system, so that they can take effect on the local system. -.Pp -In \*(Lqcharacter at a time\*(Rq mode, most -text typed is immediately sent to the remote host for processing. -.Pp -In \*(Lqold line by line\*(Rq mode, all text is echoed locally, -and (normally) only completed lines are sent to the remote host. -The \*(Lqlocal echo character\*(Rq (initially \*(Lq^E\*(Rq) may be used -to turn off and on the local echo -(this would mostly be used to enter passwords -without the password being echoed). -.Pp -If the -.Dv LINEMODE -option is enabled, or if the -.Ic localchars -toggle is -.Dv TRUE -(the default for \*(Lqold line by line\*(Rq; see below), -the user's -.Ic quit , -.Ic intr , -and -.Ic flush -characters are trapped locally, and sent as -.Tn TELNET -protocol sequences to the remote side. -If -.Dv LINEMODE -has ever been enabled, then the user's -.Ic susp -and -.Ic eof -are also sent as -.Tn TELNET -protocol sequences, -and -.Ic quit -is sent as a -.Dv TELNET ABORT -instead of -.Dv BREAK . -There are options (see -.Ic toggle -.Ic autoflush -and -.Ic toggle -.Ic autosynch -below) -which cause this action to flush subsequent output to the terminal -(until the remote host acknowledges the -.Tn TELNET -sequence) and flush previous terminal input -(in the case of -.Ic quit -and -.Ic intr ) . -.Pp -While connected to a remote host, -.Nm -command mode may be entered by typing the -.Nm -\*(Lqescape character\*(Rq (initially \*(Lq^]\*(Rq). -When in command mode, the normal terminal editing conventions are available. -.Pp -The following -.Nm -commands are available. -Only enough of each command to uniquely identify it need be typed -(this is also true for arguments to the -.Ic mode , -.Ic set , -.Ic toggle , -.Ic unset , -.Ic slc , -.Ic environ , -and -.Ic display -commands). -.Pp -.Bl -tag -width "mode type" -.It Ic auth Ar argument ... -The auth command manipulates the information sent through the -.Dv TELNET AUTHENTICATE -option. Valid arguments for the -.Ic auth -command are: -.Bl -tag -width "disable type" -.It Ic disable Ar type -Disables the specified type of authentication. To -obtain a list of available types, use the -.Ic auth disable ?\& -command. -.It Ic enable Ar type -Enables the specified type of authentication. To -obtain a list of available types, use the -.Ic auth enable ?\& -command. -.It Ic status -Lists the current status of the various types of -authentication. -.El -.It Ic close -Close a -.Tn TELNET -session and return to command mode. -.It Ic display Ar argument ... -Displays all, or some, of the -.Ic set -and -.Ic toggle -values (see below). -.It Ic encrypt Ar argument ... -The encrypt command manipulates the information sent through the -.Dv TELNET ENCRYPT -option. -.Pp -Valid arguments for the -.Ic encrypt -command are: -.Bl -tag -width Ar -.It Ic disable Ar type Xo -.Op Cm input | output -.Xc -Disables the specified type of encryption. If you -omit the input and output, both input and output -are disabled. To obtain a list of available -types, use the -.Ic encrypt disable ?\& -command. -.It Ic enable Ar type Xo -.Op Cm input | output -.Xc -Enables the specified type of encryption. If you -omit input and output, both input and output are -enabled. To obtain a list of available types, use the -.Ic encrypt enable ?\& -command. -.It Ic input -This is the same as the -.Ic encrypt start input -command. -.It Ic -input -This is the same as the -.Ic encrypt stop input -command. -.It Ic output -This is the same as the -.Ic encrypt start output -command. -.It Ic -output -This is the same as the -.Ic encrypt stop output -command. -.It Ic start Op Cm input | output -Attempts to start encryption. If you omit -.Ic input -and -.Ic output , -both input and output are enabled. To -obtain a list of available types, use the -.Ic encrypt enable ?\& -command. -.It Ic status -Lists the current status of encryption. -.It Ic stop Op Cm input | output -Stops encryption. If you omit input and output, -encryption is on both input and output. -.It Ic type Ar type -Sets the default type of encryption to be used -with later -.Ic encrypt start -or -.Ic encrypt stop -commands. -.El -.It Ic environ Ar arguments ... -The -.Ic environ -command is used to manipulate the -variables that may be sent through the -.Dv TELNET ENVIRON -option. -The initial set of variables is taken from the users -environment, with only the -.Ev DISPLAY -and -.Ev PRINTER -variables being exported by default. -The -.Ev USER -variable is also exported if the -.Fl a -or -.Fl l -options are used. -.Pp -Valid arguments for the -.Ic environ -command are: -.Bl -tag -width Fl -.It Ic define Ar variable value -Define the variable -.Ar variable -to have a value of -.Ar value . -Any variables defined by this command are automatically exported. -The -.Ar value -may be enclosed in single or double quotes so -that tabs and spaces may be included. -.It Ic undefine Ar variable -Remove -.Ar variable -from the list of environment variables. -.It Ic export Ar variable -Mark the variable -.Ar variable -to be exported to the remote side. -.It Ic unexport Ar variable -Mark the variable -.Ar variable -to not be exported unless -explicitly asked for by the remote side. -.It Ic list -List the current set of environment variables. -Those marked with a -.Cm * -will be sent automatically, -other variables will only be sent if explicitly requested. -.It Ic ?\& -Prints out help information for the -.Ic environ -command. -.El -.It Ic logout -Sends the -.Dv TELNET LOGOUT -option to the remote side. -This command is similar to a -.Ic close -command; however, if the remote side does not support the -.Dv LOGOUT -option, nothing happens. -If, however, the remote side does support the -.Dv LOGOUT -option, this command should cause the remote side to close the -.Tn TELNET -connection. -If the remote side also supports the concept of -suspending a user's session for later reattachment, -the logout argument indicates that you -should terminate the session immediately. -.It Ic mode Ar type -.Ar Type -is one of several options, depending on the state of the -.Tn TELNET -session. -The remote host is asked for permission to go into the requested mode. -If the remote host is capable of entering that mode, the requested -mode will be entered. -.Bl -tag -width Ar -.It Ic character -Disable the -.Dv TELNET LINEMODE -option, or, if the remote side does not understand the -.Dv LINEMODE -option, then enter \*(Lqcharacter at a time\*(Rq mode. -.It Ic line -Enable the -.Dv TELNET LINEMODE -option, or, if the remote side does not understand the -.Dv LINEMODE -option, then attempt to enter \*(Lqold-line-by-line\*(Rq mode. -.It Ic isig Pq Ic \-isig -Attempt to enable (disable) the -.Dv TRAPSIG -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic edit Pq Ic \-edit -Attempt to enable (disable) the -.Dv EDIT -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic softtabs Pq Ic \-softtabs -Attempt to enable (disable) the -.Dv SOFT_TAB -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic litecho Pq Ic \-litecho -Attempt to enable (disable) the -.Dv LIT_ECHO -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic ?\& -Prints out help information for the -.Ic mode -command. -.El -.It Xo -.Ic open Ar host -.Op Fl l Ar user -.Op Oo Fl Oc Ns Ar port -.Xc -Open a connection to the named host. -If no port number -is specified, -.Nm -will attempt to contact a -.Tn TELNET -server at the default port. -The host specification may be either a host name (see -.Xr hosts 5 ) , -an Internet address specified in the \*(Lqdot notation\*(Rq (see -.Xr inet 3 ) , -or IPv6 host name or IPv6 coloned-hexadecimal addreess. -The -.Fl l -option may be used to specify the user name -to be passed to the remote system via the -.Ev ENVIRON -option. -When connecting to a non-standard port, -.Nm -omits any automatic initiation of -.Tn TELNET -options. When the port number is preceded by a minus sign, -the initial option negotiation is done. -After establishing a connection, the file -.Pa \&.telnetrc -in the -users home directory is opened. Lines beginning with a # are -comment lines. Blank lines are ignored. Lines that begin -without white space are the start of a machine entry. The -first thing on the line is the name of the machine that is -being connected to. The rest of the line, and successive -lines that begin with white space are assumed to be -.Nm -commands and are processed as if they had been typed -in manually to the -.Nm -command prompt. -.It Ic quit -Close any open -.Tn TELNET -session and exit -.Nm . -An end of file (in command mode) will also close a session and exit. -.It Ic send Ar arguments -Sends one or more special character sequences to the remote host. -The following are the arguments which may be specified -(more than one argument may be specified at a time): -.Pp -.Bl -tag -width escape -.It Ic abort -Sends the -.Dv TELNET ABORT -(Abort -processes) -sequence. -.It Ic ao -Sends the -.Dv TELNET AO -(Abort Output) sequence, which should cause the remote system to flush -all output -.Em from -the remote system -.Em to -the user's terminal. -.It Ic ayt -Sends the -.Dv TELNET AYT -(Are You There) -sequence, to which the remote system may or may not choose to respond. -.It Ic brk -Sends the -.Dv TELNET BRK -(Break) sequence, which may have significance to the remote -system. -.It Ic ec -Sends the -.Dv TELNET EC -(Erase Character) -sequence, which should cause the remote system to erase the last character -entered. -.It Ic el -Sends the -.Dv TELNET EL -(Erase Line) -sequence, which should cause the remote system to erase the line currently -being entered. -.It Ic eof -Sends the -.Dv TELNET EOF -(End Of File) -sequence. -.It Ic eor -Sends the -.Dv TELNET EOR -(End of Record) -sequence. -.It Ic escape -Sends the current -.Nm -escape character (initially \*(Lq^\*(Rq). -.It Ic ga -Sends the -.Dv TELNET GA -(Go Ahead) -sequence, which likely has no significance to the remote system. -.It Ic getstatus -If the remote side supports the -.Dv TELNET STATUS -command, -.Ic getstatus -will send the subnegotiation to request that the server send -its current option status. -.It Ic ip -Sends the -.Dv TELNET IP -(Interrupt Process) sequence, which should cause the remote -system to abort the currently running process. -.It Ic nop -Sends the -.Dv TELNET NOP -(No OPeration) -sequence. -.It Ic susp -Sends the -.Dv TELNET SUSP -(SUSPend process) -sequence. -.It Ic synch -Sends the -.Dv TELNET SYNCH -sequence. -This sequence causes the remote system to discard all previously typed -(but not yet read) input. -This sequence is sent as -.Tn TCP -urgent -data (and may not work if the remote system is a -.Bx 4.2 -system -- if -it doesn't work, a lower case \*(Lqr\*(Rq may be echoed on the terminal). -.It Ic do Ar cmd -.It Ic dont Ar cmd -.It Ic will Ar cmd -.It Ic wont Ar cmd -Sends the -.Dv TELNET DO -.Ar cmd -sequence. -.Ar Cmd -can be either a decimal number between 0 and 255, -or a symbolic name for a specific -.Dv TELNET -command. -.Ar Cmd -can also be either -.Ic help -or -.Ic ?\& -to print out help information, including -a list of known symbolic names. -.It Ic ?\& -Prints out help information for the -.Ic send -command. -.El -.It Ic set Ar argument value -.It Ic unset Ar argument value -The -.Ic set -command will set any one of a number of -.Nm -variables to a specific value or to -.Dv TRUE . -The special value -.Ic off -turns off the function associated with -the variable, this is equivalent to using the -.Ic unset -command. -The -.Ic unset -command will disable or set to -.Dv FALSE -any of the specified functions. -The values of variables may be interrogated with the -.Ic display -command. -The variables which may be set or unset, but not toggled, are -listed here. In addition, any of the variables for the -.Ic toggle -command may be explicitly set or unset using -the -.Ic set -and -.Ic unset -commands. -.Bl -tag -width escape -.It Ic ayt -If -.Tn TELNET -is in localchars mode, or -.Dv LINEMODE -is enabled, and the status character is typed, a -.Dv TELNET AYT -sequence (see -.Ic send ayt -preceding) is sent to the -remote host. The initial value for the \*(LqAre You There\*(Rq -character is the terminal's status character. -.It Ic echo -This is the value (initially \*(Lq^E\*(Rq) which, when in -\*(Lqline by line\*(Rq mode, toggles between doing local echoing -of entered characters (for normal processing), and suppressing -echoing of entered characters (for entering, say, a password). -.It Ic eof -If -.Nm -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Rq mode, entering this character -as the first character on a line will cause this character to be -sent to the remote system. -The initial value of the eof character is taken to be the terminal's -.Ic eof -character. -.It Ic erase -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below), -.Sy and -if -.Nm -is operating in \*(Lqcharacter at a time\*(Rq mode, then when this -character is typed, a -.Dv TELNET EC -sequence (see -.Ic send -.Ic ec -above) -is sent to the remote system. -The initial value for the erase character is taken to be -the terminal's -.Ic erase -character. -.It Ic escape -This is the -.Nm -escape character (initially \*(Lq^[\*(Rq) which causes entry -into -.Nm -command mode (when connected to a remote system). -.It Ic flushoutput -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below) -and the -.Ic flushoutput -character is typed, a -.Dv TELNET AO -sequence (see -.Ic send -.Ic ao -above) -is sent to the remote host. -The initial value for the flush character is taken to be -the terminal's -.Ic flush -character. -.It Ic forw1 -.It Ic forw2 -If -.Nm -is operating in -.Dv LINEMODE , -these are the -characters that, when typed, cause partial lines to be -forwarded to the remote system. The initial value for -the forwarding characters are taken from the terminal's -eol and eol2 characters. -.It Ic interrupt -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below) -and the -.Ic interrupt -character is typed, a -.Dv TELNET IP -sequence (see -.Ic send -.Ic ip -above) -is sent to the remote host. -The initial value for the interrupt character is taken to be -the terminal's -.Ic intr -character. -.It Ic kill -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below), -.Ic and -if -.Nm -is operating in \*(Lqcharacter at a time\*(Rq mode, then when this -character is typed, a -.Dv TELNET EL -sequence (see -.Ic send -.Ic el -above) -is sent to the remote system. -The initial value for the kill character is taken to be -the terminal's -.Ic kill -character. -.It Ic lnext -If -.Nm -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Rq mode, then this character is taken to -be the terminal's -.Ic lnext -character. -The initial value for the lnext character is taken to be -the terminal's -.Ic lnext -character. -.It Ic quit -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below) -and the -.Ic quit -character is typed, a -.Dv TELNET BRK -sequence (see -.Ic send -.Ic brk -above) -is sent to the remote host. -The initial value for the quit character is taken to be -the terminal's -.Ic quit -character. -.It Ic reprint -If -.Nm -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Rq mode, then this character is taken to -be the terminal's -.Ic reprint -character. -The initial value for the reprint character is taken to be -the terminal's -.Ic reprint -character. -.It Ic rlogin -This is the rlogin escape character. -If set, the normal -.Nm -escape character is ignored unless it is -preceded by this character at the beginning of a line. -This character, at the beginning of a line followed by -a "." closes the connection; when followed by a ^Z it -suspends the -.Nm -command. The initial state is to -disable the -.Nm rlogin -escape character. -.It Ic start -If the -.Dv TELNET TOGGLE-FLOW-CONTROL -option has been enabled, -then this character is taken to -be the terminal's -.Ic start -character. -The initial value for the start character is taken to be -the terminal's -.Ic start -character. -.It Ic stop -If the -.Dv TELNET TOGGLE-FLOW-CONTROL -option has been enabled, -then this character is taken to -be the terminal's -.Ic stop -character. -The initial value for the stop character is taken to be -the terminal's -.Ic stop -character. -.It Ic susp -If -.Nm -is in -.Ic localchars -mode, or -.Dv LINEMODE -is enabled, and the -.Ic suspend -character is typed, a -.Dv TELNET SUSP -sequence (see -.Ic send -.Ic susp -above) -is sent to the remote host. -The initial value for the suspend character is taken to be -the terminal's -.Ic suspend -character. -.It Ic tracefile -This is the file to which the output, caused by -.Ic netdata -or -.Ic option -tracing being -.Dv TRUE , -will be written. If it is set to -.Dq Fl , -then tracing information will be written to standard output (the default). -.It Ic worderase -If -.Nm -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Rq mode, then this character is taken to -be the terminal's -.Ic worderase -character. -The initial value for the worderase character is taken to be -the terminal's -.Ic worderase -character. -.It Ic ?\& -Displays the legal -.Ic set -.Pq Ic unset -commands. -.El -.It Ic opie Ar sequence challenge -The -.Ic opie -command computes a response to the OPIE challenge. -.It Ic slc Ar state -The -.Ic slc -command (Set Local Characters) is used to set -or change the state of the special -characters when the -.Dv TELNET LINEMODE -option has -been enabled. Special characters are characters that get -mapped to -.Tn TELNET -commands sequences (like -.Ic ip -or -.Ic quit ) -or line editing characters (like -.Ic erase -and -.Ic kill ) . -By default, the local special characters are exported. -.Bl -tag -width Fl -.It Ic check -Verify the current settings for the current special characters. -The remote side is requested to send all the current special -character settings, and if there are any discrepancies with -the local side, the local side will switch to the remote value. -.It Ic export -Switch to the local defaults for the special characters. The -local default characters are those of the local terminal at -the time when -.Nm -was started. -.It Ic import -Switch to the remote defaults for the special characters. -The remote default characters are those of the remote system -at the time when the -.Tn TELNET -connection was established. -.It Ic ?\& -Prints out help information for the -.Ic slc -command. -.El -.It Ic status -Show the current status of -.Nm . -This includes the peer one is connected to, as well -as the current mode. -.It Ic toggle Ar arguments ... -Toggle (between -.Dv TRUE -and -.Dv FALSE ) -various flags that control how -.Nm -responds to events. -These flags may be set explicitly to -.Dv TRUE -or -.Dv FALSE -using the -.Ic set -and -.Ic unset -commands listed above. -More than one argument may be specified. -The state of these flags may be interrogated with the -.Ic display -command. -Valid arguments are: -.Bl -tag -width Ar -.It Ic authdebug -Turns on debugging information for the authentication code. -.It Ic autoflush -If -.Ic autoflush -and -.Ic localchars -are both -.Dv TRUE , -then when the -.Ic ao , -or -.Ic quit -characters are recognized (and transformed into -.Tn TELNET -sequences; see -.Ic set -above for details), -.Nm -refuses to display any data on the user's terminal -until the remote system acknowledges (via a -.Dv TELNET TIMING MARK -option) -that it has processed those -.Tn TELNET -sequences. -The initial value for this toggle is -.Dv TRUE -if the terminal user had not -done an "stty noflsh", otherwise -.Dv FALSE -(see -.Xr stty 1 ) . -.It Ic autodecrypt -When the -.Dv TELNET ENCRYPT -option is negotiated, by -default the actual encryption (decryption) of the data -stream does not start automatically. The autoencrypt -(autodecrypt) command states that encryption of the -output (input) stream should be enabled as soon as -possible. -.It Ic autologin -If the remote side supports the -.Dv TELNET AUTHENTICATION -option -.Nm -attempts to use it to perform automatic authentication. If the -.Dv AUTHENTICATION -option is not supported, the user's login -name are propagated through the -.Dv TELNET ENVIRON -option. -This command is the same as specifying -.Fl a -option on the -.Ic open -command. -.It Ic autosynch -If -.Ic autosynch -and -.Ic localchars -are both -.Dv TRUE , -then when either the -.Ic intr -or -.Ic quit -characters is typed (see -.Ic set -above for descriptions of the -.Ic intr -and -.Ic quit -characters), the resulting -.Tn TELNET -sequence sent is followed by the -.Dv TELNET SYNCH -sequence. -This procedure -.Ic should -cause the remote system to begin throwing away all previously -typed input until both of the -.Tn TELNET -sequences have been read and acted upon. -The initial value of this toggle is -.Dv FALSE . -.It Ic binary -Enable or disable the -.Dv TELNET BINARY -option on both input and output. -.It Ic inbinary -Enable or disable the -.Dv TELNET BINARY -option on input. -.It Ic outbinary -Enable or disable the -.Dv TELNET BINARY -option on output. -.It Ic crlf -If this is -.Dv TRUE , -then carriage returns will be sent as -.Li <CR><LF> . -If this is -.Dv FALSE , -then carriage returns will be send as -.Li <CR><NUL> . -The initial value for this toggle is -.Dv FALSE . -.It Ic crmod -Toggle carriage return mode. -When this mode is enabled, most carriage return characters received from -the remote host will be mapped into a carriage return followed by -a line feed. -This mode does not affect those characters typed by the user, only -those received from the remote host. -This mode is not very useful unless the remote host -only sends carriage return, but never line feed. -The initial value for this toggle is -.Dv FALSE . -.It Ic debug -Toggles socket level debugging (useful only to the -.Ic super user ) . -The initial value for this toggle is -.Dv FALSE . -.It Ic encdebug -Turns on debugging information for the encryption code. -.It Ic localchars -If this is -.Dv TRUE , -then the -.Ic flush , -.Ic interrupt , -.Ic quit , -.Ic erase , -and -.Ic kill -characters (see -.Ic set -above) are recognized locally, and transformed into (hopefully) appropriate -.Tn TELNET -control sequences -(respectively -.Ic ao , -.Ic ip , -.Ic brk , -.Ic ec , -and -.Ic el ; -see -.Ic send -above). -The initial value for this toggle is -.Dv TRUE -in \*(Lqold line by line\*(Rq mode, -and -.Dv FALSE -in \*(Lqcharacter at a time\*(Rq mode. -When the -.Dv LINEMODE -option is enabled, the value of -.Ic localchars -is ignored, and assumed to always be -.Dv TRUE . -If -.Dv LINEMODE -has ever been enabled, then -.Ic quit -is sent as -.Ic abort , -and -.Ic eof -and -.Ic suspend -are sent as -.Ic eof -and -.Ic susp -(see -.Ic send -above). -.It Ic netdata -Toggles the display of all network data (in hexadecimal format). -The initial value for this toggle is -.Dv FALSE . -.It Ic options -Toggles the display of some internal -.Nm -protocol processing (having to do with -.Tn TELNET -options). -The initial value for this toggle is -.Dv FALSE . -.It Ic prettydump -When the -.Ic netdata -toggle is enabled, if -.Ic prettydump -is enabled the output from the -.Ic netdata -command will be formatted in a more user readable format. -Spaces are put between each character in the output, and the -beginning of any -.Nm -escape sequence is preceded by a '*' to aid in locating them. -.It Ic skiprc -When the skiprc toggle is -.Dv TRUE , -.Nm -skips the reading of the -.Pa \&.telnetrc -file in the users home -directory when connections are opened. The initial -value for this toggle is -.Dv FALSE . -.It Ic termdata -Toggles the display of all terminal data (in hexadecimal format). -The initial value for this toggle is -.Dv FALSE . -.It Ic verbose_encrypt -When the -.Ic verbose_encrypt -toggle is -.Dv TRUE , -.Nm -prints out a message each time encryption is enabled or -disabled. The initial value for this toggle is -.Dv FALSE . -.It Ic ?\& -Displays the legal -.Ic toggle -commands. -.El -.It Ic z -Suspend -.Nm . -This command only works when the user is using the -.Xr csh 1 . -.It Ic \&! Op Ar command -Execute a single command in a subshell on the local -system. If -.Ar command -is omitted, then an interactive -subshell is invoked. -.It Ic ?\& Op Ar command -Get help. With no arguments, -.Nm -prints a help summary. -If -.Ar command -is specified, -.Nm -will print the help information for just that command. -.El -.Sh ENVIRONMENT -.Nm -uses at least the -.Ev HOME , -.Ev SHELL , -.Ev DISPLAY , -and -.Ev TERM -environment variables. -Other environment variables may be propagated -to the other side via the -.Dv TELNET ENVIRON -option. -.Sh SEE ALSO -.Xr rlogin 1 , -.Xr rsh 1 , -.Xr hosts 5 , -.Xr nologin 5 , -.Xr telnetd 8 -.Sh FILES -.Bl -tag -width ~/.telnetrc -compact -.It Pa ~/.telnetrc -user customized telnet startup values -.El -.Sh HISTORY -The -.Nm -command appeared in -.Bx 4.2 . -.Pp -IPv6 support was added by WIDE/KAME project. -.Sh NOTES -On some remote systems, echo has to be turned off manually when in -\*(Lqold line by line\*(Rq mode. -.Pp -In \*(Lqold line by line\*(Rq mode or -.Dv LINEMODE -the terminal's -.Ic eof -character is only recognized (and sent to the remote system) -when it is the first character on a line. diff --git a/crypto/telnet/telnet/telnet.c b/crypto/telnet/telnet/telnet.c deleted file mode 100644 index 82ee464..0000000 --- a/crypto/telnet/telnet/telnet.c +++ /dev/null @@ -1,2378 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)telnet.c 8.4 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> - -/* By the way, we need to include curses.h before telnet.h since, - * among other things, telnet.h #defines 'DO', which is a variable - * declared in curses.h. - */ - -#include <ctype.h> -#include <curses.h> -#include <signal.h> -#include <stdlib.h> -#include <term.h> -#include <unistd.h> -#include <arpa/telnet.h> - -#include "ring.h" - -#include "defines.h" -#include "externs.h" -#include "types.h" -#include "general.h" - -#ifdef AUTHENTICATION -#include <libtelnet/auth.h> -#endif -#ifdef ENCRYPTION -#include <libtelnet/encrypt.h> -#endif -#include <libtelnet/misc.h> - -#define strip(x) ((my_want_state_is_wont(TELOPT_BINARY)) ? ((x)&0x7f) : (x)) - -static unsigned char subbuffer[SUBBUFSIZE], - *subpointer, *subend; /* buffer for sub-options */ -#define SB_CLEAR() subpointer = subbuffer; -#define SB_TERM() { subend = subpointer; SB_CLEAR(); } -#define SB_ACCUM(c) if (subpointer < (subbuffer+sizeof subbuffer)) { \ - *subpointer++ = (c); \ - } - -#define SB_GET() ((*subpointer++)&0xff) -#define SB_PEEK() ((*subpointer)&0xff) -#define SB_EOF() (subpointer >= subend) -#define SB_LEN() (subend - subpointer) - -char options[256]; /* The combined options */ -char do_dont_resp[256]; -char will_wont_resp[256]; - -int - eight = 0, - autologin = 0, /* Autologin anyone? */ - skiprc = 0, - connected, - showoptions, - ISend, /* trying to send network data in */ - telnet_debug = 0, - crmod, - netdata, /* Print out network data flow */ - crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ - telnetport, - SYNCHing, /* we are in TELNET SYNCH mode */ - flushout, /* flush output */ - autoflush = 0, /* flush output when interrupting? */ - autosynch, /* send interrupt characters with SYNCH? */ - localflow, /* we handle flow control locally */ - restartany, /* if flow control enabled, restart on any character */ - localchars, /* we recognize interrupt/quit */ - donelclchars, /* the user has set "localchars" */ - donebinarytoggle, /* the user has put us in binary */ - dontlecho, /* do we suppress local echoing right now? */ - globalmode, - doaddrlookup = 1, /* do a reverse address lookup? */ - clienteof = 0; - -char *prompt = 0; -#ifdef ENCRYPTION -char *line; /* hack around breakage in sra.c :-( !! */ -#endif - -cc_t escape; -cc_t rlogin; -#ifdef KLUDGELINEMODE -cc_t echoc; -#endif - -/* - * Telnet receiver states for fsm - */ -#define TS_DATA 0 -#define TS_IAC 1 -#define TS_WILL 2 -#define TS_WONT 3 -#define TS_DO 4 -#define TS_DONT 5 -#define TS_CR 6 -#define TS_SB 7 /* sub-option collection */ -#define TS_SE 8 /* looking for sub-option end */ - -static int telrcv_state; -#ifdef OLD_ENVIRON -unsigned char telopt_environ = TELOPT_NEW_ENVIRON; -#else -# define telopt_environ TELOPT_NEW_ENVIRON -#endif - -jmp_buf toplevel; -jmp_buf peerdied; - -int flushline; -int linemode; - -#ifdef KLUDGELINEMODE -int kludgelinemode = 1; -#endif - -static int is_unique(char *, char **, char **); - -/* - * The following are some clocks used to decide how to interpret - * the relationship between various variables. - */ - -Clocks clocks; - -/* - * Initialize telnet environment. - */ - -void -init_telnet(void) -{ - env_init(); - - SB_CLEAR(); - ClearArray(options); - - connected = ISend = localflow = donebinarytoggle = 0; -#ifdef AUTHENTICATION -#ifdef ENCRYPTION - auth_encrypt_connect(connected); -#endif -#endif - restartany = -1; - - SYNCHing = 0; - - /* Don't change NetTrace */ - - escape = CONTROL(']'); - rlogin = _POSIX_VDISABLE; -#ifdef KLUDGELINEMODE - echoc = CONTROL('E'); -#endif - - flushline = 1; - telrcv_state = TS_DATA; -} - - -/* - * These routines are in charge of sending option negotiations - * to the other side. - * - * The basic idea is that we send the negotiation if either side - * is in disagreement as to what the current state should be. - */ - -void -send_do(int c, int init) -{ - if (init) { - if (((do_dont_resp[c] == 0) && my_state_is_do(c)) || - my_want_state_is_do(c)) - return; - set_my_want_state_do(c); - do_dont_resp[c]++; - } - NET2ADD(IAC, DO); - NETADD(c); - printoption("SENT", DO, c); -} - -void -send_dont(int c, int init) -{ - if (init) { - if (((do_dont_resp[c] == 0) && my_state_is_dont(c)) || - my_want_state_is_dont(c)) - return; - set_my_want_state_dont(c); - do_dont_resp[c]++; - } - NET2ADD(IAC, DONT); - NETADD(c); - printoption("SENT", DONT, c); -} - -void -send_will(int c, int init) -{ - if (init) { - if (((will_wont_resp[c] == 0) && my_state_is_will(c)) || - my_want_state_is_will(c)) - return; - set_my_want_state_will(c); - will_wont_resp[c]++; - } - NET2ADD(IAC, WILL); - NETADD(c); - printoption("SENT", WILL, c); -} - -void -send_wont(int c, int init) -{ - if (init) { - if (((will_wont_resp[c] == 0) && my_state_is_wont(c)) || - my_want_state_is_wont(c)) - return; - set_my_want_state_wont(c); - will_wont_resp[c]++; - } - NET2ADD(IAC, WONT); - NETADD(c); - printoption("SENT", WONT, c); -} - -void -willoption(int option) -{ - int new_state_ok = 0; - - if (do_dont_resp[option]) { - --do_dont_resp[option]; - if (do_dont_resp[option] && my_state_is_do(option)) - --do_dont_resp[option]; - } - - if ((do_dont_resp[option] == 0) && my_want_state_is_dont(option)) { - - switch (option) { - - case TELOPT_ECHO: - case TELOPT_BINARY: - case TELOPT_SGA: - settimer(modenegotiated); - /* FALLTHROUGH */ - case TELOPT_STATUS: -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: -#endif -#ifdef ENCRYPTION - case TELOPT_ENCRYPT: -#endif /* ENCRYPTION */ - new_state_ok = 1; - break; - - case TELOPT_TM: - if (flushout) - flushout = 0; - /* - * Special case for TM. If we get back a WILL, - * pretend we got back a WONT. - */ - set_my_want_state_dont(option); - set_my_state_dont(option); - return; /* Never reply to TM will's/wont's */ - - case TELOPT_LINEMODE: - default: - break; - } - - if (new_state_ok) { - set_my_want_state_do(option); - send_do(option, 0); - setconnmode(0); /* possibly set new tty mode */ - } else { - do_dont_resp[option]++; - send_dont(option, 0); - } - } - set_my_state_do(option); -#ifdef ENCRYPTION - if (option == TELOPT_ENCRYPT) - encrypt_send_support(); -#endif /* ENCRYPTION */ -} - -void -wontoption(int option) -{ - if (do_dont_resp[option]) { - --do_dont_resp[option]; - if (do_dont_resp[option] && my_state_is_dont(option)) - --do_dont_resp[option]; - } - - if ((do_dont_resp[option] == 0) && my_want_state_is_do(option)) { - - switch (option) { - -#ifdef KLUDGELINEMODE - case TELOPT_SGA: - if (!kludgelinemode) - break; - /* FALLTHROUGH */ -#endif - case TELOPT_ECHO: - settimer(modenegotiated); - break; - - case TELOPT_TM: - if (flushout) - flushout = 0; - set_my_want_state_dont(option); - set_my_state_dont(option); - return; /* Never reply to TM will's/wont's */ - - default: - break; - } - set_my_want_state_dont(option); - if (my_state_is_do(option)) - send_dont(option, 0); - setconnmode(0); /* Set new tty mode */ - } else if (option == TELOPT_TM) { - /* - * Special case for TM. - */ - if (flushout) - flushout = 0; - set_my_want_state_dont(option); - } - set_my_state_dont(option); -} - -static void -dooption(int option) -{ - int new_state_ok = 0; - - if (will_wont_resp[option]) { - --will_wont_resp[option]; - if (will_wont_resp[option] && my_state_is_will(option)) - --will_wont_resp[option]; - } - - if (will_wont_resp[option] == 0) { - if (my_want_state_is_wont(option)) { - - switch (option) { - - case TELOPT_TM: - /* - * Special case for TM. We send a WILL, but pretend - * we sent WONT. - */ - send_will(option, 0); - set_my_want_state_wont(TELOPT_TM); - set_my_state_wont(TELOPT_TM); - return; - - case TELOPT_BINARY: /* binary mode */ - case TELOPT_NAWS: /* window size */ - case TELOPT_TSPEED: /* terminal speed */ - case TELOPT_LFLOW: /* local flow control */ - case TELOPT_TTYPE: /* terminal type option */ - case TELOPT_SGA: /* no big deal */ -#ifdef ENCRYPTION - case TELOPT_ENCRYPT: /* encryption variable option */ -#endif /* ENCRYPTION */ - new_state_ok = 1; - break; - - case TELOPT_NEW_ENVIRON: /* New environment variable option */ -#ifdef OLD_ENVIRON - if (my_state_is_will(TELOPT_OLD_ENVIRON)) - send_wont(TELOPT_OLD_ENVIRON, 1); /* turn off the old */ - goto env_common; - case TELOPT_OLD_ENVIRON: /* Old environment variable option */ - if (my_state_is_will(TELOPT_NEW_ENVIRON)) - break; /* Don't enable if new one is in use! */ - env_common: - telopt_environ = option; -#endif - new_state_ok = 1; - break; - -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: - if (autologin) - new_state_ok = 1; - break; -#endif - - case TELOPT_XDISPLOC: /* X Display location */ - if (env_getvalue("DISPLAY")) - new_state_ok = 1; - break; - - case TELOPT_LINEMODE: -#ifdef KLUDGELINEMODE - kludgelinemode = 0; - send_do(TELOPT_SGA, 1); -#endif - set_my_want_state_will(TELOPT_LINEMODE); - send_will(option, 0); - set_my_state_will(TELOPT_LINEMODE); - slc_init(); - return; - - case TELOPT_ECHO: /* We're never going to echo... */ - default: - break; - } - - if (new_state_ok) { - set_my_want_state_will(option); - send_will(option, 0); - setconnmode(0); /* Set new tty mode */ - } else { - will_wont_resp[option]++; - send_wont(option, 0); - } - } else { - /* - * Handle options that need more things done after the - * other side has acknowledged the option. - */ - switch (option) { - case TELOPT_LINEMODE: -#ifdef KLUDGELINEMODE - kludgelinemode = 0; - send_do(TELOPT_SGA, 1); -#endif - set_my_state_will(option); - slc_init(); - send_do(TELOPT_SGA, 0); - return; - } - } - } - set_my_state_will(option); -} - -static void -dontoption(int option) -{ - - if (will_wont_resp[option]) { - --will_wont_resp[option]; - if (will_wont_resp[option] && my_state_is_wont(option)) - --will_wont_resp[option]; - } - - if ((will_wont_resp[option] == 0) && my_want_state_is_will(option)) { - switch (option) { - case TELOPT_LINEMODE: - linemode = 0; /* put us back to the default state */ - break; -#ifdef OLD_ENVIRON - case TELOPT_NEW_ENVIRON: - /* - * The new environ option wasn't recognized, try - * the old one. - */ - send_will(TELOPT_OLD_ENVIRON, 1); - telopt_environ = TELOPT_OLD_ENVIRON; - break; -#endif - } - /* we always accept a DONT */ - set_my_want_state_wont(option); - if (my_state_is_will(option)) - send_wont(option, 0); - setconnmode(0); /* Set new tty mode */ - } - set_my_state_wont(option); -} - -/* - * Given a buffer returned by tgetent(), this routine will turn - * the pipe separated list of names in the buffer into an array - * of pointers to null terminated names. We toss out any bad, - * duplicate, or verbose names (names with spaces). - */ - -static const char *name_unknown = "UNKNOWN"; -static const char *unknown[] = { NULL, NULL }; - -static const char ** -mklist(char *buf, char *name) -{ - int n; - char c, *cp, **argvp, *cp2, **argv, **avt; - - if (name) { - if (strlen(name) > 40) { - name = 0; - unknown[0] = name_unknown; - } else { - unknown[0] = name; - upcase(name); - } - } else - unknown[0] = name_unknown; - /* - * Count up the number of names. - */ - for (n = 1, cp = buf; *cp && *cp != ':'; cp++) { - if (*cp == '|') - n++; - } - /* - * Allocate an array to put the name pointers into - */ - argv = (char **)malloc((n+3)*sizeof(char *)); - if (argv == 0) - return(unknown); - - /* - * Fill up the array of pointers to names. - */ - *argv = 0; - argvp = argv+1; - n = 0; - for (cp = cp2 = buf; (c = *cp); cp++) { - if (c == '|' || c == ':') { - *cp++ = '\0'; - /* - * Skip entries that have spaces or are over 40 - * characters long. If this is our environment - * name, then put it up front. Otherwise, as - * long as this is not a duplicate name (case - * insensitive) add it to the list. - */ - if (n || (cp - cp2 > 41)) - ; - else if (name && (strncasecmp(name, cp2, cp-cp2) == 0)) - *argv = cp2; - else if (is_unique(cp2, argv+1, argvp)) - *argvp++ = cp2; - if (c == ':') - break; - /* - * Skip multiple delimiters. Reset cp2 to - * the beginning of the next name. Reset n, - * the flag for names with spaces. - */ - while ((c = *cp) == '|') - cp++; - cp2 = cp; - n = 0; - } - /* - * Skip entries with spaces or non-ascii values. - * Convert lower case letters to upper case. - */ - if ((c == ' ') || !isascii(c)) - n = 1; - else if (islower(c)) - *cp = toupper(c); - } - - /* - * Check for an old V6 2 character name. If the second - * name points to the beginning of the buffer, and is - * only 2 characters long, move it to the end of the array. - */ - if ((argv[1] == buf) && (strlen(argv[1]) == 2)) { - --argvp; - for (avt = &argv[1]; avt < argvp; avt++) - *avt = *(avt+1); - *argvp++ = buf; - } - - /* - * Duplicate last name, for TTYPE option, and null - * terminate the array. If we didn't find a match on - * our terminal name, put that name at the beginning. - */ - cp = *(argvp-1); - *argvp++ = cp; - *argvp = 0; - - if (*argv == 0) { - if (name) - *argv = name; - else { - --argvp; - for (avt = argv; avt < argvp; avt++) - *avt = *(avt+1); - } - } - if (*argv) - return((const char **)argv); - else - return(unknown); -} - -static int -is_unique(char *name, char **as, char **ae) -{ - char **ap; - int n; - - n = strlen(name) + 1; - for (ap = as; ap < ae; ap++) - if (strncasecmp(*ap, name, n) == 0) - return(0); - return (1); -} - -#ifdef TERMCAP -char termbuf[1024]; - -/*ARGSUSED*/ -static int -setupterm(char *tname, int fd, int *errp) -{ - if (tgetent(termbuf, tname) == 1) { - termbuf[1023] = '\0'; - if (errp) - *errp = 1; - return(0); - } - if (errp) - *errp = 0; - return(-1); -} -#else -#define termbuf ttytype -extern char ttytype[]; -#endif - -int resettermname = 1; - -static const char * -gettermname(void) -{ - char *tname; - static const char **tnamep = 0; - static const char **next; - int err; - - if (resettermname) { - resettermname = 0; - if (tnamep && tnamep != unknown) - free(tnamep); - if ((tname = env_getvalue("TERM")) && - (setupterm(tname, 1, &err) == 0)) { - tnamep = mklist(termbuf, tname); - } else { - if (tname && (strlen(tname) <= 40)) { - unknown[0] = tname; - upcase(tname); - } else - unknown[0] = name_unknown; - tnamep = unknown; - } - next = tnamep; - } - if (*next == 0) - next = tnamep; - return(*next++); -} -/* - * suboption() - * - * Look at the sub-option buffer, and try to be helpful to the other - * side. - * - * Currently we recognize: - * - * Terminal type, send request. - * Terminal speed (send request). - * Local flow control (is request). - * Linemode - */ - -static void -suboption(void) -{ - unsigned char subchar; - - printsub('<', subbuffer, SB_LEN()+2); - switch (subchar = SB_GET()) { - case TELOPT_TTYPE: - if (my_want_state_is_wont(TELOPT_TTYPE)) - return; - if (SB_EOF() || SB_GET() != TELQUAL_SEND) { - return; - } else { - const char *name; - unsigned char temp[50]; - int len; - - name = gettermname(); - len = strlen(name) + 4 + 2; - if (len < NETROOM()) { - sprintf(temp, "%c%c%c%c%s%c%c", IAC, SB, TELOPT_TTYPE, - TELQUAL_IS, name, IAC, SE); - ring_supply_data(&netoring, temp, len); - printsub('>', &temp[2], len-2); - } else { - ExitString("No room in buffer for terminal type.\n", 1); - /*NOTREACHED*/ - } - } - break; - case TELOPT_TSPEED: - if (my_want_state_is_wont(TELOPT_TSPEED)) - return; - if (SB_EOF()) - return; - if (SB_GET() == TELQUAL_SEND) { - long ospeed, ispeed; - unsigned char temp[50]; - int len; - - TerminalSpeeds(&ispeed, &ospeed); - - sprintf((char *)temp, "%c%c%c%c%ld,%ld%c%c", IAC, SB, TELOPT_TSPEED, - TELQUAL_IS, ospeed, ispeed, IAC, SE); - len = strlen((char *)temp+4) + 4; /* temp[3] is 0 ... */ - - if (len < NETROOM()) { - ring_supply_data(&netoring, temp, len); - printsub('>', temp+2, len - 2); - } -/*@*/ else printf("lm_will: not enough room in buffer\n"); - } - break; - case TELOPT_LFLOW: - if (my_want_state_is_wont(TELOPT_LFLOW)) - return; - if (SB_EOF()) - return; - switch(SB_GET()) { - case LFLOW_RESTART_ANY: - restartany = 1; - break; - case LFLOW_RESTART_XON: - restartany = 0; - break; - case LFLOW_ON: - localflow = 1; - break; - case LFLOW_OFF: - localflow = 0; - break; - default: - return; - } - setcommandmode(); - setconnmode(0); - break; - - case TELOPT_LINEMODE: - if (my_want_state_is_wont(TELOPT_LINEMODE)) - return; - if (SB_EOF()) - return; - switch (SB_GET()) { - case WILL: - lm_will(subpointer, SB_LEN()); - break; - case WONT: - lm_wont(subpointer, SB_LEN()); - break; - case DO: - lm_do(subpointer, SB_LEN()); - break; - case DONT: - lm_dont(subpointer, SB_LEN()); - break; - case LM_SLC: - slc(subpointer, SB_LEN()); - break; - case LM_MODE: - lm_mode(subpointer, SB_LEN(), 0); - break; - default: - break; - } - break; - -#ifdef OLD_ENVIRON - case TELOPT_OLD_ENVIRON: -#endif - case TELOPT_NEW_ENVIRON: - if (SB_EOF()) - return; - switch(SB_PEEK()) { - case TELQUAL_IS: - case TELQUAL_INFO: - if (my_want_state_is_dont(subchar)) - return; - break; - case TELQUAL_SEND: - if (my_want_state_is_wont(subchar)) { - return; - } - break; - default: - return; - } - env_opt(subpointer, SB_LEN()); - break; - - case TELOPT_XDISPLOC: - if (my_want_state_is_wont(TELOPT_XDISPLOC)) - return; - if (SB_EOF()) - return; - if (SB_GET() == TELQUAL_SEND) { - unsigned char temp[50], *dp; - int len; - - if ((dp = env_getvalue("DISPLAY")) == NULL || - strlen(dp) > sizeof(temp) - 7) { - /* - * Something happened, we no longer have a DISPLAY - * variable. Or it is too long. So, turn off the option. - */ - send_wont(TELOPT_XDISPLOC, 1); - break; - } - snprintf(temp, sizeof(temp), "%c%c%c%c%s%c%c", IAC, SB, - TELOPT_XDISPLOC, TELQUAL_IS, dp, IAC, SE); - len = strlen((char *)temp+4) + 4; /* temp[3] is 0 ... */ - - if (len < NETROOM()) { - ring_supply_data(&netoring, temp, len); - printsub('>', temp+2, len - 2); - } -/*@*/ else printf("lm_will: not enough room in buffer\n"); - } - break; - -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: { - if (!autologin) - break; - if (SB_EOF()) - return; - switch(SB_GET()) { - case TELQUAL_IS: - if (my_want_state_is_dont(TELOPT_AUTHENTICATION)) - return; - auth_is(subpointer, SB_LEN()); - break; - case TELQUAL_SEND: - if (my_want_state_is_wont(TELOPT_AUTHENTICATION)) - return; - auth_send(subpointer, SB_LEN()); - break; - case TELQUAL_REPLY: - if (my_want_state_is_wont(TELOPT_AUTHENTICATION)) - return; - auth_reply(subpointer, SB_LEN()); - break; - case TELQUAL_NAME: - if (my_want_state_is_dont(TELOPT_AUTHENTICATION)) - return; - auth_name(subpointer, SB_LEN()); - break; - } - } - break; -#endif -#ifdef ENCRYPTION - case TELOPT_ENCRYPT: - if (SB_EOF()) - return; - switch(SB_GET()) { - case ENCRYPT_START: - if (my_want_state_is_dont(TELOPT_ENCRYPT)) - return; - encrypt_start(subpointer, SB_LEN()); - break; - case ENCRYPT_END: - if (my_want_state_is_dont(TELOPT_ENCRYPT)) - return; - encrypt_end(); - break; - case ENCRYPT_SUPPORT: - if (my_want_state_is_wont(TELOPT_ENCRYPT)) - return; - encrypt_support(subpointer, SB_LEN()); - break; - case ENCRYPT_REQSTART: - if (my_want_state_is_wont(TELOPT_ENCRYPT)) - return; - encrypt_request_start(subpointer, SB_LEN()); - break; - case ENCRYPT_REQEND: - if (my_want_state_is_wont(TELOPT_ENCRYPT)) - return; - /* - * We can always send an REQEND so that we cannot - * get stuck encrypting. We should only get this - * if we have been able to get in the correct mode - * anyhow. - */ - encrypt_request_end(); - break; - case ENCRYPT_IS: - if (my_want_state_is_dont(TELOPT_ENCRYPT)) - return; - encrypt_is(subpointer, SB_LEN()); - break; - case ENCRYPT_REPLY: - if (my_want_state_is_wont(TELOPT_ENCRYPT)) - return; - encrypt_reply(subpointer, SB_LEN()); - break; - case ENCRYPT_ENC_KEYID: - if (my_want_state_is_dont(TELOPT_ENCRYPT)) - return; - encrypt_enc_keyid(subpointer, SB_LEN()); - break; - case ENCRYPT_DEC_KEYID: - if (my_want_state_is_wont(TELOPT_ENCRYPT)) - return; - encrypt_dec_keyid(subpointer, SB_LEN()); - break; - default: - break; - } - break; -#endif /* ENCRYPTION */ - default: - break; - } -} - -static unsigned char str_lm[] = { IAC, SB, TELOPT_LINEMODE, 0, 0, IAC, SE }; - -void -lm_will(unsigned char *cmd, int len) -{ - if (len < 1) { -/*@*/ printf("lm_will: no command!!!\n"); /* Should not happen... */ - return; - } - switch(cmd[0]) { - case LM_FORWARDMASK: /* We shouldn't ever get this... */ - default: - str_lm[3] = DONT; - str_lm[4] = cmd[0]; - if (NETROOM() > (int)sizeof(str_lm)) { - ring_supply_data(&netoring, str_lm, sizeof(str_lm)); - printsub('>', &str_lm[2], sizeof(str_lm)-2); - } -/*@*/ else printf("lm_will: not enough room in buffer\n"); - break; - } -} - -void -lm_wont(unsigned char *cmd, int len) -{ - if (len < 1) { -/*@*/ printf("lm_wont: no command!!!\n"); /* Should not happen... */ - return; - } - switch(cmd[0]) { - case LM_FORWARDMASK: /* We shouldn't ever get this... */ - default: - /* We are always DONT, so don't respond */ - return; - } -} - -void -lm_do(unsigned char *cmd, int len) -{ - if (len < 1) { -/*@*/ printf("lm_do: no command!!!\n"); /* Should not happen... */ - return; - } - switch(cmd[0]) { - case LM_FORWARDMASK: - default: - str_lm[3] = WONT; - str_lm[4] = cmd[0]; - if (NETROOM() > (int)sizeof(str_lm)) { - ring_supply_data(&netoring, str_lm, sizeof(str_lm)); - printsub('>', &str_lm[2], sizeof(str_lm)-2); - } -/*@*/ else printf("lm_do: not enough room in buffer\n"); - break; - } -} - -void -lm_dont(unsigned char *cmd, int len) -{ - if (len < 1) { -/*@*/ printf("lm_dont: no command!!!\n"); /* Should not happen... */ - return; - } - switch(cmd[0]) { - case LM_FORWARDMASK: - default: - /* we are always WONT, so don't respond */ - break; - } -} - -static unsigned char str_lm_mode[] = { - IAC, SB, TELOPT_LINEMODE, LM_MODE, 0, IAC, SE -}; - -void -lm_mode(unsigned char *cmd, int len, int init) -{ - if (len != 1) - return; - if ((linemode&MODE_MASK&~MODE_ACK) == *cmd) - return; - if (*cmd&MODE_ACK) - return; - linemode = *cmd&(MODE_MASK&~MODE_ACK); - str_lm_mode[4] = linemode; - if (!init) - str_lm_mode[4] |= MODE_ACK; - if (NETROOM() > (int)sizeof(str_lm_mode)) { - ring_supply_data(&netoring, str_lm_mode, sizeof(str_lm_mode)); - printsub('>', &str_lm_mode[2], sizeof(str_lm_mode)-2); - } -/*@*/ else printf("lm_mode: not enough room in buffer\n"); - setconnmode(0); /* set changed mode */ -} - - - -/* - * slc() - * Handle special character suboption of LINEMODE. - */ - -struct spc { - cc_t val; - cc_t *valp; - char flags; /* Current flags & level */ - char mylevel; /* Maximum level & flags */ -} spc_data[NSLC+1]; - -#define SLC_IMPORT 0 -#define SLC_EXPORT 1 -#define SLC_RVALUE 2 -static int slc_mode = SLC_EXPORT; - -void -slc_init(void) -{ - struct spc *spcp; - - localchars = 1; - for (spcp = spc_data; spcp < &spc_data[NSLC+1]; spcp++) { - spcp->val = 0; - spcp->valp = 0; - spcp->flags = spcp->mylevel = SLC_NOSUPPORT; - } - -#define initfunc(func, flags) { \ - spcp = &spc_data[func]; \ - if ((spcp->valp = tcval(func))) { \ - spcp->val = *spcp->valp; \ - spcp->mylevel = SLC_VARIABLE|flags; \ - } else { \ - spcp->val = 0; \ - spcp->mylevel = SLC_DEFAULT; \ - } \ - } - - initfunc(SLC_SYNCH, 0); - /* No BRK */ - initfunc(SLC_AO, 0); - initfunc(SLC_AYT, 0); - /* No EOR */ - initfunc(SLC_ABORT, SLC_FLUSHIN|SLC_FLUSHOUT); - initfunc(SLC_EOF, 0); -#ifndef SYSV_TERMIO - initfunc(SLC_SUSP, SLC_FLUSHIN); -#endif - initfunc(SLC_EC, 0); - initfunc(SLC_EL, 0); -#ifndef SYSV_TERMIO - initfunc(SLC_EW, 0); - initfunc(SLC_RP, 0); - initfunc(SLC_LNEXT, 0); -#endif - initfunc(SLC_XON, 0); - initfunc(SLC_XOFF, 0); -#ifdef SYSV_TERMIO - spc_data[SLC_XON].mylevel = SLC_CANTCHANGE; - spc_data[SLC_XOFF].mylevel = SLC_CANTCHANGE; -#endif - initfunc(SLC_FORW1, 0); -#ifdef USE_TERMIO - initfunc(SLC_FORW2, 0); - /* No FORW2 */ -#endif - - initfunc(SLC_IP, SLC_FLUSHIN|SLC_FLUSHOUT); -#undef initfunc - - if (slc_mode == SLC_EXPORT) - slc_export(); - else - slc_import(1); - -} - -void -slcstate(void) -{ - printf("Special characters are %s values\n", - slc_mode == SLC_IMPORT ? "remote default" : - slc_mode == SLC_EXPORT ? "local" : - "remote"); -} - -void -slc_mode_export(void) -{ - slc_mode = SLC_EXPORT; - if (my_state_is_will(TELOPT_LINEMODE)) - slc_export(); -} - -void -slc_mode_import(int def) -{ - slc_mode = def ? SLC_IMPORT : SLC_RVALUE; - if (my_state_is_will(TELOPT_LINEMODE)) - slc_import(def); -} - -unsigned char slc_import_val[] = { - IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_VARIABLE, 0, IAC, SE -}; -unsigned char slc_import_def[] = { - IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_DEFAULT, 0, IAC, SE -}; - -void -slc_import(int def) -{ - if (NETROOM() > (int)sizeof(slc_import_val)) { - if (def) { - ring_supply_data(&netoring, slc_import_def, sizeof(slc_import_def)); - printsub('>', &slc_import_def[2], sizeof(slc_import_def)-2); - } else { - ring_supply_data(&netoring, slc_import_val, sizeof(slc_import_val)); - printsub('>', &slc_import_val[2], sizeof(slc_import_val)-2); - } - } -/*@*/ else printf("slc_import: not enough room\n"); -} - -void -slc_export(void) -{ - struct spc *spcp; - - TerminalDefaultChars(); - - slc_start_reply(); - for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) { - if (spcp->mylevel != SLC_NOSUPPORT) { - if (spcp->val == (cc_t)(_POSIX_VDISABLE)) - spcp->flags = SLC_NOSUPPORT; - else - spcp->flags = spcp->mylevel; - if (spcp->valp) - spcp->val = *spcp->valp; - slc_add_reply(spcp - spc_data, spcp->flags, spcp->val); - } - } - slc_end_reply(); - (void)slc_update(); - setconnmode(1); /* Make sure the character values are set */ -} - -void -slc(unsigned char *cp, int len) -{ - struct spc *spcp; - int func,level; - - slc_start_reply(); - - for (; len >= 3; len -=3, cp +=3) { - - func = cp[SLC_FUNC]; - - if (func == 0) { - /* - * Client side: always ignore 0 function. - */ - continue; - } - if (func > NSLC) { - if ((cp[SLC_FLAGS] & SLC_LEVELBITS) != SLC_NOSUPPORT) - slc_add_reply(func, SLC_NOSUPPORT, 0); - continue; - } - - spcp = &spc_data[func]; - - level = cp[SLC_FLAGS]&(SLC_LEVELBITS|SLC_ACK); - - if ((cp[SLC_VALUE] == (unsigned char)spcp->val) && - ((level&SLC_LEVELBITS) == (spcp->flags&SLC_LEVELBITS))) { - continue; - } - - if (level == (SLC_DEFAULT|SLC_ACK)) { - /* - * This is an error condition, the SLC_ACK - * bit should never be set for the SLC_DEFAULT - * level. Our best guess to recover is to - * ignore the SLC_ACK bit. - */ - cp[SLC_FLAGS] &= ~SLC_ACK; - } - - if (level == ((spcp->flags&SLC_LEVELBITS)|SLC_ACK)) { - spcp->val = (cc_t)cp[SLC_VALUE]; - spcp->flags = cp[SLC_FLAGS]; /* include SLC_ACK */ - continue; - } - - level &= ~SLC_ACK; - - if (level <= (spcp->mylevel&SLC_LEVELBITS)) { - spcp->flags = cp[SLC_FLAGS]|SLC_ACK; - spcp->val = (cc_t)cp[SLC_VALUE]; - } - if (level == SLC_DEFAULT) { - if ((spcp->mylevel&SLC_LEVELBITS) != SLC_DEFAULT) - spcp->flags = spcp->mylevel; - else - spcp->flags = SLC_NOSUPPORT; - } - slc_add_reply(func, spcp->flags, spcp->val); - } - slc_end_reply(); - if (slc_update()) - setconnmode(1); /* set the new character values */ -} - -void -slc_check(void) -{ - struct spc *spcp; - - slc_start_reply(); - for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) { - if (spcp->valp && spcp->val != *spcp->valp) { - spcp->val = *spcp->valp; - if (spcp->val == (cc_t)(_POSIX_VDISABLE)) - spcp->flags = SLC_NOSUPPORT; - else - spcp->flags = spcp->mylevel; - slc_add_reply(spcp - spc_data, spcp->flags, spcp->val); - } - } - slc_end_reply(); - setconnmode(1); -} - -unsigned char slc_reply[128]; -unsigned char *slc_replyp; - -void -slc_start_reply(void) -{ - slc_replyp = slc_reply; - *slc_replyp++ = IAC; - *slc_replyp++ = SB; - *slc_replyp++ = TELOPT_LINEMODE; - *slc_replyp++ = LM_SLC; -} - -void -slc_add_reply(unsigned char func, unsigned char flags, cc_t value) -{ - if ((*slc_replyp++ = func) == IAC) - *slc_replyp++ = IAC; - if ((*slc_replyp++ = flags) == IAC) - *slc_replyp++ = IAC; - if ((*slc_replyp++ = (unsigned char)value) == IAC) - *slc_replyp++ = IAC; -} - -void -slc_end_reply(void) -{ - int len; - - *slc_replyp++ = IAC; - *slc_replyp++ = SE; - len = slc_replyp - slc_reply; - if (len <= 6) - return; - if (NETROOM() > len) { - ring_supply_data(&netoring, slc_reply, slc_replyp - slc_reply); - printsub('>', &slc_reply[2], slc_replyp - slc_reply - 2); - } -/*@*/else printf("slc_end_reply: not enough room\n"); -} - -int -slc_update(void) -{ - struct spc *spcp; - int need_update = 0; - - for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) { - if (!(spcp->flags&SLC_ACK)) - continue; - spcp->flags &= ~SLC_ACK; - if (spcp->valp && (*spcp->valp != spcp->val)) { - *spcp->valp = spcp->val; - need_update = 1; - } - } - return(need_update); -} - -#ifdef OLD_ENVIRON -# ifdef ENV_HACK -/* - * Earlier version of telnet/telnetd from the BSD code had - * the definitions of VALUE and VAR reversed. To ensure - * maximum interoperability, we assume that the server is - * an older BSD server, until proven otherwise. The newer - * BSD servers should be able to handle either definition, - * so it is better to use the wrong values if we don't - * know what type of server it is. - */ -int env_auto = 1; -int old_env_var = OLD_ENV_VAR; -int old_env_value = OLD_ENV_VALUE; -# else -# define old_env_var OLD_ENV_VAR -# define old_env_value OLD_ENV_VALUE -# endif -#endif - -void -env_opt(unsigned char *buf, int len) -{ - unsigned char *ep = 0, *epc = 0; - int i; - - switch(buf[0]&0xff) { - case TELQUAL_SEND: - env_opt_start(); - if (len == 1) { - env_opt_add(NULL); - } else for (i = 1; i < len; i++) { - switch (buf[i]&0xff) { -#ifdef OLD_ENVIRON - case OLD_ENV_VAR: -# ifdef ENV_HACK - if (telopt_environ == TELOPT_OLD_ENVIRON - && env_auto) { - /* Server has the same definitions */ - old_env_var = OLD_ENV_VAR; - old_env_value = OLD_ENV_VALUE; - } - /* FALLTHROUGH */ -# endif - case OLD_ENV_VALUE: - /* - * Although OLD_ENV_VALUE is not legal, we will - * still recognize it, just in case it is an - * old server that has VAR & VALUE mixed up... - */ - /* FALLTHROUGH */ -#else - case NEW_ENV_VAR: -#endif - case ENV_USERVAR: - if (ep) { - *epc = 0; - env_opt_add(ep); - } - ep = epc = &buf[i+1]; - break; - case ENV_ESC: - i++; - /*FALLTHROUGH*/ - default: - if (epc) - *epc++ = buf[i]; - break; - } - } - if (ep) { - *epc = 0; - env_opt_add(ep); - } - env_opt_end(1); - break; - - case TELQUAL_IS: - case TELQUAL_INFO: - /* Ignore for now. We shouldn't get it anyway. */ - break; - - default: - break; - } -} - -#define OPT_REPLY_SIZE 256 -unsigned char *opt_reply; -unsigned char *opt_replyp; -unsigned char *opt_replyend; - -void -env_opt_start(void) -{ - if (opt_reply) - opt_reply = (unsigned char *)realloc(opt_reply, OPT_REPLY_SIZE); - else - opt_reply = (unsigned char *)malloc(OPT_REPLY_SIZE); - if (opt_reply == NULL) { -/*@*/ printf("env_opt_start: malloc()/realloc() failed!!!\n"); - opt_reply = opt_replyp = opt_replyend = NULL; - return; - } - opt_replyp = opt_reply; - opt_replyend = opt_reply + OPT_REPLY_SIZE; - *opt_replyp++ = IAC; - *opt_replyp++ = SB; - *opt_replyp++ = telopt_environ; - *opt_replyp++ = TELQUAL_IS; -} - -void -env_opt_start_info(void) -{ - env_opt_start(); - if (opt_replyp) - opt_replyp[-1] = TELQUAL_INFO; -} - -void -env_opt_add(unsigned char *ep) -{ - unsigned char *vp, c; - - if (opt_reply == NULL) /*XXX*/ - return; /*XXX*/ - - if (ep == NULL || *ep == '\0') { - /* Send user defined variables first. */ - env_default(1, 0); - while ((ep = env_default(0, 0))) - env_opt_add(ep); - - /* Now add the list of well know variables. */ - env_default(1, 1); - while ((ep = env_default(0, 1))) - env_opt_add(ep); - return; - } - vp = env_getvalue(ep); - if (opt_replyp + (vp ? strlen((char *)vp) : 0) + - strlen((char *)ep) + 6 > opt_replyend) - { - int len; - opt_replyend += OPT_REPLY_SIZE; - len = opt_replyend - opt_reply; - opt_reply = (unsigned char *)realloc(opt_reply, len); - if (opt_reply == NULL) { -/*@*/ printf("env_opt_add: realloc() failed!!!\n"); - opt_reply = opt_replyp = opt_replyend = NULL; - return; - } - opt_replyp = opt_reply + len - (opt_replyend - opt_replyp); - opt_replyend = opt_reply + len; - } - if (opt_welldefined(ep)) -#ifdef OLD_ENVIRON - if (telopt_environ == TELOPT_OLD_ENVIRON) - *opt_replyp++ = old_env_var; - else -#endif - *opt_replyp++ = NEW_ENV_VAR; - else - *opt_replyp++ = ENV_USERVAR; - for (;;) { - while ((c = *ep++)) { - switch(c&0xff) { - case IAC: - *opt_replyp++ = IAC; - break; - case NEW_ENV_VAR: - case NEW_ENV_VALUE: - case ENV_ESC: - case ENV_USERVAR: - *opt_replyp++ = ENV_ESC; - break; - } - *opt_replyp++ = c; - } - if ((ep = vp)) { -#ifdef OLD_ENVIRON - if (telopt_environ == TELOPT_OLD_ENVIRON) - *opt_replyp++ = old_env_value; - else -#endif - *opt_replyp++ = NEW_ENV_VALUE; - vp = NULL; - } else - break; - } -} - -int -opt_welldefined(const char *ep) -{ - if ((strcmp(ep, "USER") == 0) || - (strcmp(ep, "DISPLAY") == 0) || - (strcmp(ep, "PRINTER") == 0) || - (strcmp(ep, "SYSTEMTYPE") == 0) || - (strcmp(ep, "JOB") == 0) || - (strcmp(ep, "ACCT") == 0)) - return(1); - return(0); -} - -void -env_opt_end(int emptyok) -{ - int len; - - len = opt_replyp - opt_reply + 2; - if (emptyok || len > 6) { - *opt_replyp++ = IAC; - *opt_replyp++ = SE; - if (NETROOM() > len) { - ring_supply_data(&netoring, opt_reply, len); - printsub('>', &opt_reply[2], len - 2); - } -/*@*/ else printf("slc_end_reply: not enough room\n"); - } - if (opt_reply) { - free(opt_reply); - opt_reply = opt_replyp = opt_replyend = NULL; - } -} - - - -int -telrcv(void) -{ - int c; - int scc; - unsigned char *sbp; - int count; - int returnValue = 0; - - scc = 0; - count = 0; - while (TTYROOM() > 2) { - if (scc == 0) { - if (count) { - ring_consumed(&netiring, count); - returnValue = 1; - count = 0; - } - sbp = netiring.consume; - scc = ring_full_consecutive(&netiring); - if (scc == 0) { - /* No more data coming in */ - break; - } - } - - c = *sbp++ & 0xff, scc--; count++; -#ifdef ENCRYPTION - if (decrypt_input) - c = (*decrypt_input)(c); -#endif /* ENCRYPTION */ - - switch (telrcv_state) { - - case TS_CR: - telrcv_state = TS_DATA; - if (c == '\0') { - break; /* Ignore \0 after CR */ - } - else if ((c == '\n') && my_want_state_is_dont(TELOPT_ECHO) && !crmod) { - TTYADD(c); - break; - } - /* FALLTHROUGH */ - - case TS_DATA: - if (c == IAC) { - telrcv_state = TS_IAC; - break; - } - /* - * The 'crmod' hack (see following) is needed - * since we can't * set CRMOD on output only. - * Machines like MULTICS like to send \r without - * \n; since we must turn off CRMOD to get proper - * input, the mapping is done here (sigh). - */ - if ((c == '\r') && my_want_state_is_dont(TELOPT_BINARY)) { - if (scc > 0) { - c = *sbp&0xff; -#ifdef ENCRYPTION - if (decrypt_input) - c = (*decrypt_input)(c); -#endif /* ENCRYPTION */ - if (c == 0) { - sbp++, scc--; count++; - /* a "true" CR */ - TTYADD('\r'); - } else if (my_want_state_is_dont(TELOPT_ECHO) && - (c == '\n')) { - sbp++, scc--; count++; - TTYADD('\n'); - } else { -#ifdef ENCRYPTION - if (decrypt_input) - (*decrypt_input)(-1); -#endif /* ENCRYPTION */ - - TTYADD('\r'); - if (crmod) { - TTYADD('\n'); - } - } - } else { - telrcv_state = TS_CR; - TTYADD('\r'); - if (crmod) { - TTYADD('\n'); - } - } - } else { - TTYADD(c); - } - continue; - - case TS_IAC: -process_iac: - switch (c) { - - case WILL: - telrcv_state = TS_WILL; - continue; - - case WONT: - telrcv_state = TS_WONT; - continue; - - case DO: - telrcv_state = TS_DO; - continue; - - case DONT: - telrcv_state = TS_DONT; - continue; - - case DM: - /* - * We may have missed an urgent notification, - * so make sure we flush whatever is in the - * buffer currently. - */ - printoption("RCVD", IAC, DM); - SYNCHing = 1; - (void) ttyflush(1); - SYNCHing = stilloob(); - settimer(gotDM); - break; - - case SB: - SB_CLEAR(); - telrcv_state = TS_SB; - continue; - - case IAC: - TTYADD(IAC); - break; - - case NOP: - case GA: - default: - printoption("RCVD", IAC, c); - break; - } - telrcv_state = TS_DATA; - continue; - - case TS_WILL: - printoption("RCVD", WILL, c); - willoption(c); - telrcv_state = TS_DATA; - continue; - - case TS_WONT: - printoption("RCVD", WONT, c); - wontoption(c); - telrcv_state = TS_DATA; - continue; - - case TS_DO: - printoption("RCVD", DO, c); - dooption(c); - if (c == TELOPT_NAWS) { - sendnaws(); - } else if (c == TELOPT_LFLOW) { - localflow = 1; - setcommandmode(); - setconnmode(0); - } - telrcv_state = TS_DATA; - continue; - - case TS_DONT: - printoption("RCVD", DONT, c); - dontoption(c); - flushline = 1; - setconnmode(0); /* set new tty mode (maybe) */ - telrcv_state = TS_DATA; - continue; - - case TS_SB: - if (c == IAC) { - telrcv_state = TS_SE; - } else { - SB_ACCUM(c); - } - continue; - - case TS_SE: - if (c != SE) { - if (c != IAC) { - /* - * This is an error. We only expect to get - * "IAC IAC" or "IAC SE". Several things may - * have happend. An IAC was not doubled, the - * IAC SE was left off, or another option got - * inserted into the suboption are all possibilities. - * If we assume that the IAC was not doubled, - * and really the IAC SE was left off, we could - * get into an infinate loop here. So, instead, - * we terminate the suboption, and process the - * partial suboption if we can. - */ - SB_ACCUM(IAC); - SB_ACCUM(c); - subpointer -= 2; - SB_TERM(); - - printoption("In SUBOPTION processing, RCVD", IAC, c); - suboption(); /* handle sub-option */ - telrcv_state = TS_IAC; - goto process_iac; - } - SB_ACCUM(c); - telrcv_state = TS_SB; - } else { - SB_ACCUM(IAC); - SB_ACCUM(SE); - subpointer -= 2; - SB_TERM(); - suboption(); /* handle sub-option */ - telrcv_state = TS_DATA; - } - } - } - if (count) - ring_consumed(&netiring, count); - return returnValue||count; -} - -static int bol = 1, local = 0; - -int -rlogin_susp(void) -{ - if (local) { - local = 0; - bol = 1; - command(0, "z\n", 2); - return(1); - } - return(0); -} - -static int -telsnd(void) -{ - int tcc; - int count; - int returnValue = 0; - unsigned char *tbp; - - tcc = 0; - count = 0; - while (NETROOM() > 2) { - int sc; - int c; - - if (tcc == 0) { - if (count) { - ring_consumed(&ttyiring, count); - returnValue = 1; - count = 0; - } - tbp = ttyiring.consume; - tcc = ring_full_consecutive(&ttyiring); - if (tcc == 0) { - break; - } - } - c = *tbp++ & 0xff, sc = strip(c), tcc--; count++; - if (rlogin != _POSIX_VDISABLE) { - if (bol) { - bol = 0; - if (sc == rlogin) { - local = 1; - continue; - } - } else if (local) { - local = 0; - if (sc == '.' || c == termEofChar) { - bol = 1; - command(0, "close\n", 6); - continue; - } - if (sc == termSuspChar) { - bol = 1; - command(0, "z\n", 2); - continue; - } - if (sc == escape) { - command(0, tbp, tcc); - bol = 1; - count += tcc; - tcc = 0; - flushline = 1; - break; - } - if (sc != rlogin) { - ++tcc; - --tbp; - --count; - c = sc = rlogin; - } - } - if ((sc == '\n') || (sc == '\r')) - bol = 1; - } else if (escape != _POSIX_VDISABLE && sc == escape) { - /* - * Double escape is a pass through of a single escape character. - */ - if (tcc && strip(*tbp) == escape) { - tbp++; - tcc--; - count++; - bol = 0; - } else { - command(0, (char *)tbp, tcc); - bol = 1; - count += tcc; - tcc = 0; - flushline = 1; - break; - } - } else - bol = 0; -#ifdef KLUDGELINEMODE - if (kludgelinemode && (globalmode&MODE_EDIT) && (sc == echoc)) { - if (tcc > 0 && strip(*tbp) == echoc) { - tcc--; tbp++; count++; - } else { - dontlecho = !dontlecho; - settimer(echotoggle); - setconnmode(0); - flushline = 1; - break; - } - } -#endif - if (MODE_LOCAL_CHARS(globalmode)) { - if (TerminalSpecialChars(sc) == 0) { - bol = 1; - break; - } - } - if (my_want_state_is_wont(TELOPT_BINARY)) { - switch (c) { - case '\n': - /* - * If we are in CRMOD mode (\r ==> \n) - * on our local machine, then probably - * a newline (unix) is CRLF (TELNET). - */ - if (MODE_LOCAL_CHARS(globalmode)) { - NETADD('\r'); - } - NETADD('\n'); - bol = flushline = 1; - break; - case '\r': - if (!crlf) { - NET2ADD('\r', '\0'); - } else { - NET2ADD('\r', '\n'); - } - bol = flushline = 1; - break; - case IAC: - NET2ADD(IAC, IAC); - break; - default: - NETADD(c); - break; - } - } else if (c == IAC) { - NET2ADD(IAC, IAC); - } else { - NETADD(c); - } - } - if (count) - ring_consumed(&ttyiring, count); - return returnValue||count; /* Non-zero if we did anything */ -} - -/* - * Scheduler() - * - * Try to do something. - * - * If we do something useful, return 1; else return 0. - * - */ - -static int -Scheduler(int block) -{ - /* One wants to be a bit careful about setting returnValue - * to one, since a one implies we did some useful work, - * and therefore probably won't be called to block next - */ - int returnValue; - int netin, netout, netex, ttyin, ttyout; - - /* Decide which rings should be processed */ - - netout = ring_full_count(&netoring) && - (flushline || - (my_want_state_is_wont(TELOPT_LINEMODE) -#ifdef KLUDGELINEMODE - && (!kludgelinemode || my_want_state_is_do(TELOPT_SGA)) -#endif - ) || - my_want_state_is_will(TELOPT_BINARY)); - ttyout = ring_full_count(&ttyoring); - - ttyin = ring_empty_count(&ttyiring) && (clienteof == 0); - - netin = !ISend && ring_empty_count(&netiring); - - netex = !SYNCHing; - - /* Call to system code to process rings */ - - returnValue = process_rings(netin, netout, netex, ttyin, ttyout, !block); - - /* Now, look at the input rings, looking for work to do. */ - - if (ring_full_count(&ttyiring)) { - returnValue |= telsnd(); - } - - if (ring_full_count(&netiring)) { - returnValue |= telrcv(); - } - return returnValue; -} - -#ifdef AUTHENTICATION -#define __unusedhere -#else -#define __unusedhere __unused -#endif -/* - * Select from tty and network... - */ -void -telnet(char *user __unusedhere) -{ - sys_telnet_init(); - -#ifdef AUTHENTICATION -#ifdef ENCRYPTION - { - static char local_host[256] = { 0 }; - - if (!local_host[0]) { - gethostname(local_host, sizeof(local_host)); - local_host[sizeof(local_host)-1] = 0; - } - auth_encrypt_init(local_host, hostname, "TELNET", 0); - auth_encrypt_user(user); - } -#endif -#endif - if (telnetport) { -#ifdef AUTHENTICATION - if (autologin) - send_will(TELOPT_AUTHENTICATION, 1); -#endif -#ifdef ENCRYPTION - send_do(TELOPT_ENCRYPT, 1); - send_will(TELOPT_ENCRYPT, 1); -#endif /* ENCRYPTION */ - send_do(TELOPT_SGA, 1); - send_will(TELOPT_TTYPE, 1); - send_will(TELOPT_NAWS, 1); - send_will(TELOPT_TSPEED, 1); - send_will(TELOPT_LFLOW, 1); - send_will(TELOPT_LINEMODE, 1); - send_will(TELOPT_NEW_ENVIRON, 1); - send_do(TELOPT_STATUS, 1); - if (env_getvalue("DISPLAY")) - send_will(TELOPT_XDISPLOC, 1); - if (eight) - tel_enter_binary(eight); - } - - for (;;) { - int schedValue; - - while ((schedValue = Scheduler(0)) != 0) { - if (schedValue == -1) { - setcommandmode(); - return; - } - } - - if (Scheduler(1) == -1) { - setcommandmode(); - return; - } - } -} - -#if 0 /* XXX - this not being in is a bug */ -/* - * nextitem() - * - * Return the address of the next "item" in the TELNET data - * stream. This will be the address of the next character if - * the current address is a user data character, or it will - * be the address of the character following the TELNET command - * if the current address is a TELNET IAC ("I Am a Command") - * character. - */ - -static char * -nextitem(char *current) -{ - if ((*current&0xff) != IAC) { - return current+1; - } - switch (*(current+1)&0xff) { - case DO: - case DONT: - case WILL: - case WONT: - return current+3; - case SB: /* loop forever looking for the SE */ - { - char *look = current+2; - - for (;;) { - if ((*look++&0xff) == IAC) { - if ((*look++&0xff) == SE) { - return look; - } - } - } - } - default: - return current+2; - } -} -#endif /* 0 */ - -/* - * netclear() - * - * We are about to do a TELNET SYNCH operation. Clear - * the path to the network. - * - * Things are a bit tricky since we may have sent the first - * byte or so of a previous TELNET command into the network. - * So, we have to scan the network buffer from the beginning - * until we are up to where we want to be. - * - * A side effect of what we do, just to keep things - * simple, is to clear the urgent data pointer. The principal - * caller should be setting the urgent data pointer AFTER calling - * us in any case. - */ - -static void -netclear(void) -{ - /* Deleted */ -} - -/* - * These routines add various telnet commands to the data stream. - */ - -static void -doflush(void) -{ - NET2ADD(IAC, DO); - NETADD(TELOPT_TM); - flushline = 1; - flushout = 1; - (void) ttyflush(1); /* Flush/drop output */ - /* do printoption AFTER flush, otherwise the output gets tossed... */ - printoption("SENT", DO, TELOPT_TM); -} - -void -xmitAO(void) -{ - NET2ADD(IAC, AO); - printoption("SENT", IAC, AO); - if (autoflush) { - doflush(); - } -} - -void -xmitEL(void) -{ - NET2ADD(IAC, EL); - printoption("SENT", IAC, EL); -} - -void -xmitEC(void) -{ - NET2ADD(IAC, EC); - printoption("SENT", IAC, EC); -} - -int -dosynch(char *ch __unused) -{ - netclear(); /* clear the path to the network */ - NETADD(IAC); - setneturg(); - NETADD(DM); - printoption("SENT", IAC, DM); - return 1; -} - -int want_status_response = 0; - -int -get_status(char *ch __unused) -{ - unsigned char tmp[16]; - unsigned char *cp; - - if (my_want_state_is_dont(TELOPT_STATUS)) { - printf("Remote side does not support STATUS option\n"); - return 0; - } - cp = tmp; - - *cp++ = IAC; - *cp++ = SB; - *cp++ = TELOPT_STATUS; - *cp++ = TELQUAL_SEND; - *cp++ = IAC; - *cp++ = SE; - if (NETROOM() >= cp - tmp) { - ring_supply_data(&netoring, tmp, cp-tmp); - printsub('>', tmp+2, cp - tmp - 2); - } - ++want_status_response; - return 1; -} - -void -intp(void) -{ - NET2ADD(IAC, IP); - printoption("SENT", IAC, IP); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(NULL); - } -} - -void -sendbrk(void) -{ - NET2ADD(IAC, BREAK); - printoption("SENT", IAC, BREAK); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(NULL); - } -} - -void -sendabort(void) -{ - NET2ADD(IAC, ABORT); - printoption("SENT", IAC, ABORT); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(NULL); - } -} - -void -sendsusp(void) -{ - NET2ADD(IAC, SUSP); - printoption("SENT", IAC, SUSP); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(NULL); - } -} - -void -sendeof(void) -{ - NET2ADD(IAC, xEOF); - printoption("SENT", IAC, xEOF); -} - -void -sendayt(void) -{ - NET2ADD(IAC, AYT); - printoption("SENT", IAC, AYT); -} - -/* - * Send a window size update to the remote system. - */ - -void -sendnaws(void) -{ - long rows, cols; - unsigned char tmp[16]; - unsigned char *cp; - - if (my_state_is_wont(TELOPT_NAWS)) - return; - -#define PUTSHORT(cp, x) { if ((*cp++ = ((x)>>8)&0xff) == IAC) *cp++ = IAC; \ - if ((*cp++ = ((x))&0xff) == IAC) *cp++ = IAC; } - - if (TerminalWindowSize(&rows, &cols) == 0) { /* Failed */ - return; - } - - cp = tmp; - - *cp++ = IAC; - *cp++ = SB; - *cp++ = TELOPT_NAWS; - PUTSHORT(cp, cols); - PUTSHORT(cp, rows); - *cp++ = IAC; - *cp++ = SE; - if (NETROOM() >= cp - tmp) { - ring_supply_data(&netoring, tmp, cp-tmp); - printsub('>', tmp+2, cp - tmp - 2); - } -} - -void -tel_enter_binary(int rw) -{ - if (rw&1) - send_do(TELOPT_BINARY, 1); - if (rw&2) - send_will(TELOPT_BINARY, 1); -} - -void -tel_leave_binary(int rw) -{ - if (rw&1) - send_dont(TELOPT_BINARY, 1); - if (rw&2) - send_wont(TELOPT_BINARY, 1); -} diff --git a/crypto/telnet/telnet/terminal.c b/crypto/telnet/telnet/terminal.c deleted file mode 100644 index 3dda1c5..0000000 --- a/crypto/telnet/telnet/terminal.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)terminal.c 8.2 (Berkeley) 2/16/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <arpa/telnet.h> -#include <sys/types.h> - -#include <stdlib.h> - -#include "ring.h" - -#include "externs.h" -#include "types.h" - -#ifdef ENCRYPTION -#include <libtelnet/encrypt.h> -#endif - -Ring ttyoring, ttyiring; -unsigned char ttyobuf[2*BUFSIZ], ttyibuf[BUFSIZ]; - -int termdata; /* Debugging flag */ - -#ifdef USE_TERMIO -# ifndef VDISCARD -cc_t termFlushChar; -# endif -# ifndef VLNEXT -cc_t termLiteralNextChar; -# endif -# ifndef VSUSP -cc_t termSuspChar; -# endif -# ifndef VWERASE -cc_t termWerasChar; -# endif -# ifndef VREPRINT -cc_t termRprntChar; -# endif -# ifndef VSTART -cc_t termStartChar; -# endif -# ifndef VSTOP -cc_t termStopChar; -# endif -# ifndef VEOL -cc_t termForw1Char; -# endif -# ifndef VEOL2 -cc_t termForw2Char; -# endif -# ifndef VSTATUS -cc_t termAytChar; -# endif -#else -cc_t termForw2Char; -cc_t termAytChar; -#endif - -/* - * initialize the terminal data structures. - */ - -void -init_terminal(void) -{ - if (ring_init(&ttyoring, ttyobuf, sizeof ttyobuf) != 1) { - exit(1); - } - if (ring_init(&ttyiring, ttyibuf, sizeof ttyibuf) != 1) { - exit(1); - } - autoflush = TerminalAutoFlush(); -} - -/* - * Send as much data as possible to the terminal. - * - * Return value: - * -1: No useful work done, data waiting to go out. - * 0: No data was waiting, so nothing was done. - * 1: All waiting data was written out. - * n: All data - n was written out. - */ - -int -ttyflush(int drop) -{ - int n, n0, n1; - - n0 = ring_full_count(&ttyoring); - if ((n1 = n = ring_full_consecutive(&ttyoring)) > 0) { - if (drop) { - TerminalFlushOutput(); - /* we leave 'n' alone! */ - } else { - n = TerminalWrite(ttyoring.consume, n); - } - } - if (n > 0) { - if (termdata && n) { - Dump('>', ttyoring.consume, n); - } - /* - * If we wrote everything, and the full count is - * larger than what we wrote, then write the - * rest of the buffer. - */ - if (n1 == n && n0 > n) { - n1 = n0 - n; - if (!drop) - n1 = TerminalWrite(ttyoring.bottom, n1); - if (n1 > 0) - n += n1; - } - ring_consumed(&ttyoring, n); - } - if (n < 0) - return -1; - if (n == n0) { - if (n0) - return -1; - return 0; - } - return n0 - n + 1; -} - - -/* - * These routines decides on what the mode should be (based on the values - * of various global variables). - */ - - -int -getconnmode(void) -{ - extern int linemode; - int mode = 0; -#ifdef KLUDGELINEMODE - extern int kludgelinemode; -#endif - - if (my_want_state_is_dont(TELOPT_ECHO)) - mode |= MODE_ECHO; - - if (localflow) - mode |= MODE_FLOW; - - if (my_want_state_is_will(TELOPT_BINARY)) - mode |= MODE_INBIN; - - if (his_want_state_is_will(TELOPT_BINARY)) - mode |= MODE_OUTBIN; - -#ifdef KLUDGELINEMODE - if (kludgelinemode) { - if (my_want_state_is_dont(TELOPT_SGA)) { - mode |= (MODE_TRAPSIG|MODE_EDIT); - if (dontlecho && (clocks.echotoggle > clocks.modenegotiated)) { - mode &= ~MODE_ECHO; - } - } - return(mode); - } -#endif - if (my_want_state_is_will(TELOPT_LINEMODE)) - mode |= linemode; - return(mode); -} - -void -setconnmode(int force) -{ -#ifdef ENCRYPTION - static int enc_passwd = 0; -#endif /* ENCRYPTION */ - int newmode; - - newmode = getconnmode()|(force?MODE_FORCE:0); - - TerminalNewMode(newmode); - -#ifdef ENCRYPTION - if ((newmode & (MODE_ECHO|MODE_EDIT)) == MODE_EDIT) { - if (my_want_state_is_will(TELOPT_ENCRYPT) - && (enc_passwd == 0) && !encrypt_output) { - encrypt_request_start(0, 0); - enc_passwd = 1; - } - } else { - if (enc_passwd) { - encrypt_request_end(); - enc_passwd = 0; - } - } -#endif /* ENCRYPTION */ - -} - -void -setcommandmode(void) -{ - TerminalNewMode(-1); -} diff --git a/crypto/telnet/telnet/types.h b/crypto/telnet/telnet/types.h deleted file mode 100644 index 191d311..0000000 --- a/crypto/telnet/telnet/types.h +++ /dev/null @@ -1,52 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)types.h 8.1 (Berkeley) 6/6/93 - */ - -typedef struct { - char *modedescriptions; - char modetype; -} Modelist; - -extern Modelist modelist[]; - -typedef struct { - int - system, /* what the current time is */ - echotoggle, /* last time user entered echo character */ - modenegotiated, /* last time operating mode negotiated */ - didnetreceive, /* last time we read data from network */ - gotDM; /* when did we last see a data mark */ -} Clocks; - -extern Clocks clocks; diff --git a/crypto/telnet/telnet/utilities.c b/crypto/telnet/telnet/utilities.c deleted file mode 100644 index b0cfe37..0000000 --- a/crypto/telnet/telnet/utilities.c +++ /dev/null @@ -1,912 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)utilities.c 8.3 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#define TELOPTS -#define TELCMDS -#define SLC_NAMES -#include <arpa/telnet.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <ctype.h> -#include <stdlib.h> -#include <unistd.h> - -#include "general.h" - -#include "fdset.h" - -#include "ring.h" - -#include "defines.h" - -#include "externs.h" - -#ifdef AUTHENTICATION -#include <libtelnet/auth.h> -#endif -#ifdef ENCRYPTION -#include <libtelnet/encrypt.h> -#endif - -FILE *NetTrace = 0; /* Not in bss, since needs to stay */ -int prettydump; - -/* - * upcase() - * - * Upcase (in place) the argument. - */ - -void -upcase(char *argument) -{ - int c; - - while ((c = *argument) != 0) { - if (islower(c)) { - *argument = toupper(c); - } - argument++; - } -} - -/* - * SetSockOpt() - * - * Compensate for differences in 4.2 and 4.3 systems. - */ - -int -SetSockOpt(int fd, int level, int option, int yesno) -{ - return setsockopt(fd, level, option, - (char *)&yesno, sizeof yesno); -} - -/* - * The following are routines used to print out debugging information. - */ - -unsigned char NetTraceFile[256] = "(standard output)"; - -void -SetNetTrace(char *file) -{ - if (NetTrace && NetTrace != stdout) - fclose(NetTrace); - if (file && (strcmp(file, "-") != 0)) { - NetTrace = fopen(file, "w"); - if (NetTrace) { - strcpy((char *)NetTraceFile, file); - return; - } - fprintf(stderr, "Cannot open %s.\n", file); - } - NetTrace = stdout; - strcpy((char *)NetTraceFile, "(standard output)"); -} - -void -Dump(char direction, unsigned char *buffer, int length) -{ -# define BYTES_PER_LINE 32 -# define min(x,y) ((x<y)? x:y) - unsigned char *pThis; - int offset; - - offset = 0; - - while (length) { - /* print one line */ - fprintf(NetTrace, "%c 0x%x\t", direction, offset); - pThis = buffer; - if (prettydump) { - buffer = buffer + min(length, BYTES_PER_LINE/2); - while (pThis < buffer) { - fprintf(NetTrace, "%c%.2x", - (((*pThis)&0xff) == 0xff) ? '*' : ' ', - (*pThis)&0xff); - pThis++; - } - length -= BYTES_PER_LINE/2; - offset += BYTES_PER_LINE/2; - } else { - buffer = buffer + min(length, BYTES_PER_LINE); - while (pThis < buffer) { - fprintf(NetTrace, "%.2x", (*pThis)&0xff); - pThis++; - } - length -= BYTES_PER_LINE; - offset += BYTES_PER_LINE; - } - if (NetTrace == stdout) { - fprintf(NetTrace, "\r\n"); - } else { - fprintf(NetTrace, "\n"); - } - if (length < 0) { - fflush(NetTrace); - return; - } - /* find next unique line */ - } - fflush(NetTrace); -} - - -void -printoption(const char *direction, int cmd, int option) -{ - if (!showoptions) - return; - if (cmd == IAC) { - if (TELCMD_OK(option)) - fprintf(NetTrace, "%s IAC %s", direction, TELCMD(option)); - else - fprintf(NetTrace, "%s IAC %d", direction, option); - } else { - const char *fmt; - fmt = (cmd == WILL) ? "WILL" : (cmd == WONT) ? "WONT" : - (cmd == DO) ? "DO" : (cmd == DONT) ? "DONT" : 0; - if (fmt) { - fprintf(NetTrace, "%s %s ", direction, fmt); - if (TELOPT_OK(option)) - fprintf(NetTrace, "%s", TELOPT(option)); - else if (option == TELOPT_EXOPL) - fprintf(NetTrace, "EXOPL"); - else - fprintf(NetTrace, "%d", option); - } else - fprintf(NetTrace, "%s %d %d", direction, cmd, option); - } - if (NetTrace == stdout) { - fprintf(NetTrace, "\r\n"); - fflush(NetTrace); - } else { - fprintf(NetTrace, "\n"); - } - return; -} - -void -optionstatus(void) -{ - int i; - extern char will_wont_resp[], do_dont_resp[]; - - for (i = 0; i < 256; i++) { - if (do_dont_resp[i]) { - if (TELOPT_OK(i)) - printf("resp DO_DONT %s: %d\n", TELOPT(i), do_dont_resp[i]); - else if (TELCMD_OK(i)) - printf("resp DO_DONT %s: %d\n", TELCMD(i), do_dont_resp[i]); - else - printf("resp DO_DONT %d: %d\n", i, - do_dont_resp[i]); - if (my_want_state_is_do(i)) { - if (TELOPT_OK(i)) - printf("want DO %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf("want DO %s\n", TELCMD(i)); - else - printf("want DO %d\n", i); - } else { - if (TELOPT_OK(i)) - printf("want DONT %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf("want DONT %s\n", TELCMD(i)); - else - printf("want DONT %d\n", i); - } - } else { - if (my_state_is_do(i)) { - if (TELOPT_OK(i)) - printf(" DO %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf(" DO %s\n", TELCMD(i)); - else - printf(" DO %d\n", i); - } - } - if (will_wont_resp[i]) { - if (TELOPT_OK(i)) - printf("resp WILL_WONT %s: %d\n", TELOPT(i), will_wont_resp[i]); - else if (TELCMD_OK(i)) - printf("resp WILL_WONT %s: %d\n", TELCMD(i), will_wont_resp[i]); - else - printf("resp WILL_WONT %d: %d\n", - i, will_wont_resp[i]); - if (my_want_state_is_will(i)) { - if (TELOPT_OK(i)) - printf("want WILL %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf("want WILL %s\n", TELCMD(i)); - else - printf("want WILL %d\n", i); - } else { - if (TELOPT_OK(i)) - printf("want WONT %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf("want WONT %s\n", TELCMD(i)); - else - printf("want WONT %d\n", i); - } - } else { - if (my_state_is_will(i)) { - if (TELOPT_OK(i)) - printf(" WILL %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf(" WILL %s\n", TELCMD(i)); - else - printf(" WILL %d\n", i); - } - } - } - -} - -void -printsub(char direction, unsigned char *pointer, int length) -{ - int i; -#ifdef AUTHENTICATION - char buf[512]; -#endif - extern int want_status_response; - - if (showoptions || direction == 0 || - (want_status_response && (pointer[0] == TELOPT_STATUS))) { - if (direction) { - fprintf(NetTrace, "%s IAC SB ", - (direction == '<')? "RCVD":"SENT"); - if (length >= 3) { - int j; - - i = pointer[length-2]; - j = pointer[length-1]; - - if (i != IAC || j != SE) { - fprintf(NetTrace, "(terminated by "); - if (TELOPT_OK(i)) - fprintf(NetTrace, "%s ", TELOPT(i)); - else if (TELCMD_OK(i)) - fprintf(NetTrace, "%s ", TELCMD(i)); - else - fprintf(NetTrace, "%d ", i); - if (TELOPT_OK(j)) - fprintf(NetTrace, "%s", TELOPT(j)); - else if (TELCMD_OK(j)) - fprintf(NetTrace, "%s", TELCMD(j)); - else - fprintf(NetTrace, "%d", j); - fprintf(NetTrace, ", not IAC SE!) "); - } - } - length -= 2; - } - if (length < 1) { - fprintf(NetTrace, "(Empty suboption??\?)"); - if (NetTrace == stdout) - fflush(NetTrace); - return; - } - switch (pointer[0]) { - case TELOPT_TTYPE: - fprintf(NetTrace, "TERMINAL-TYPE "); - switch (pointer[1]) { - case TELQUAL_IS: - fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2); - break; - case TELQUAL_SEND: - fprintf(NetTrace, "SEND"); - break; - default: - fprintf(NetTrace, - "- unknown qualifier %d (0x%x).", - pointer[1], pointer[1]); - } - break; - case TELOPT_TSPEED: - fprintf(NetTrace, "TERMINAL-SPEED"); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case TELQUAL_IS: - fprintf(NetTrace, " IS "); - fprintf(NetTrace, "%.*s", length-2, (char *)pointer+2); - break; - default: - if (pointer[1] == 1) - fprintf(NetTrace, " SEND"); - else - fprintf(NetTrace, " %d (unknown)", pointer[1]); - for (i = 2; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - } - break; - - case TELOPT_LFLOW: - fprintf(NetTrace, "TOGGLE-FLOW-CONTROL"); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case LFLOW_OFF: - fprintf(NetTrace, " OFF"); break; - case LFLOW_ON: - fprintf(NetTrace, " ON"); break; - case LFLOW_RESTART_ANY: - fprintf(NetTrace, " RESTART-ANY"); break; - case LFLOW_RESTART_XON: - fprintf(NetTrace, " RESTART-XON"); break; - default: - fprintf(NetTrace, " %d (unknown)", pointer[1]); - } - for (i = 2; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - - case TELOPT_NAWS: - fprintf(NetTrace, "NAWS"); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - if (length == 2) { - fprintf(NetTrace, " ?%d?", pointer[1]); - break; - } - fprintf(NetTrace, " %d %d (%d)", - pointer[1], pointer[2], - (int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2]))); - if (length == 4) { - fprintf(NetTrace, " ?%d?", pointer[3]); - break; - } - fprintf(NetTrace, " %d %d (%d)", - pointer[3], pointer[4], - (int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4]))); - for (i = 5; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: - fprintf(NetTrace, "AUTHENTICATION"); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case TELQUAL_REPLY: - case TELQUAL_IS: - fprintf(NetTrace, " %s ", (pointer[1] == TELQUAL_IS) ? - "IS" : "REPLY"); - if (AUTHTYPE_NAME_OK(pointer[2])) - fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[2])); - else - fprintf(NetTrace, "%d ", pointer[2]); - if (length < 3) { - fprintf(NetTrace, "(partial suboption??\?)"); - break; - } - fprintf(NetTrace, "%s|%s", - ((pointer[3] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? - "CLIENT" : "SERVER", - ((pointer[3] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? - "MUTUAL" : "ONE-WAY"); - - auth_printsub(&pointer[1], length - 1, buf, sizeof(buf)); - fprintf(NetTrace, "%s", buf); - break; - - case TELQUAL_SEND: - i = 2; - fprintf(NetTrace, " SEND "); - while (i < length) { - if (AUTHTYPE_NAME_OK(pointer[i])) - fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[i])); - else - fprintf(NetTrace, "%d ", pointer[i]); - if (++i >= length) { - fprintf(NetTrace, "(partial suboption??\?)"); - break; - } - fprintf(NetTrace, "%s|%s ", - ((pointer[i] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? - "CLIENT" : "SERVER", - ((pointer[i] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? - "MUTUAL" : "ONE-WAY"); - ++i; - } - break; - - case TELQUAL_NAME: - i = 2; - fprintf(NetTrace, " NAME \""); - while (i < length) - putc(pointer[i++], NetTrace); - putc('"', NetTrace); - break; - - default: - for (i = 2; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - } - break; -#endif - -#ifdef ENCRYPTION - case TELOPT_ENCRYPT: - fprintf(NetTrace, "ENCRYPT"); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case ENCRYPT_START: - fprintf(NetTrace, " START"); - break; - - case ENCRYPT_END: - fprintf(NetTrace, " END"); - break; - - case ENCRYPT_REQSTART: - fprintf(NetTrace, " REQUEST-START"); - break; - - case ENCRYPT_REQEND: - fprintf(NetTrace, " REQUEST-END"); - break; - - case ENCRYPT_IS: - case ENCRYPT_REPLY: - fprintf(NetTrace, " %s ", (pointer[1] == ENCRYPT_IS) ? - "IS" : "REPLY"); - if (length < 3) { - fprintf(NetTrace, " (partial suboption??\?)"); - break; - } - if (ENCTYPE_NAME_OK(pointer[2])) - fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[2])); - else - fprintf(NetTrace, " %d (unknown)", pointer[2]); - - encrypt_printsub(&pointer[1], length - 1, buf, sizeof(buf)); - fprintf(NetTrace, "%s", buf); - break; - - case ENCRYPT_SUPPORT: - i = 2; - fprintf(NetTrace, " SUPPORT "); - while (i < length) { - if (ENCTYPE_NAME_OK(pointer[i])) - fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[i])); - else - fprintf(NetTrace, "%d ", pointer[i]); - i++; - } - break; - - case ENCRYPT_ENC_KEYID: - fprintf(NetTrace, " ENC_KEYID "); - goto encommon; - - case ENCRYPT_DEC_KEYID: - fprintf(NetTrace, " DEC_KEYID "); - goto encommon; - - default: - fprintf(NetTrace, " %d (unknown)", pointer[1]); - encommon: - for (i = 2; i < length; i++) - fprintf(NetTrace, " %d", pointer[i]); - break; - } - break; -#endif /* ENCRYPTION */ - - case TELOPT_LINEMODE: - fprintf(NetTrace, "LINEMODE "); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case WILL: - fprintf(NetTrace, "WILL "); - goto common; - case WONT: - fprintf(NetTrace, "WONT "); - goto common; - case DO: - fprintf(NetTrace, "DO "); - goto common; - case DONT: - fprintf(NetTrace, "DONT "); - common: - if (length < 3) { - fprintf(NetTrace, "(no option??\?)"); - break; - } - switch (pointer[2]) { - case LM_FORWARDMASK: - fprintf(NetTrace, "Forward Mask"); - for (i = 3; i < length; i++) - fprintf(NetTrace, " %x", pointer[i]); - break; - default: - fprintf(NetTrace, "%d (unknown)", pointer[2]); - for (i = 3; i < length; i++) - fprintf(NetTrace, " %d", pointer[i]); - break; - } - break; - - case LM_SLC: - fprintf(NetTrace, "SLC"); - for (i = 2; i < length - 2; i += 3) { - if (SLC_NAME_OK(pointer[i+SLC_FUNC])) - fprintf(NetTrace, " %s", SLC_NAME(pointer[i+SLC_FUNC])); - else - fprintf(NetTrace, " %d", pointer[i+SLC_FUNC]); - switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) { - case SLC_NOSUPPORT: - fprintf(NetTrace, " NOSUPPORT"); break; - case SLC_CANTCHANGE: - fprintf(NetTrace, " CANTCHANGE"); break; - case SLC_VARIABLE: - fprintf(NetTrace, " VARIABLE"); break; - case SLC_DEFAULT: - fprintf(NetTrace, " DEFAULT"); break; - } - fprintf(NetTrace, "%s%s%s", - pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "", - pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "", - pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : ""); - if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN| - SLC_FLUSHOUT| SLC_LEVELBITS)) - fprintf(NetTrace, "(0x%x)", pointer[i+SLC_FLAGS]); - fprintf(NetTrace, " %d;", pointer[i+SLC_VALUE]); - if ((pointer[i+SLC_VALUE] == IAC) && - (pointer[i+SLC_VALUE+1] == IAC)) - i++; - } - for (; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - - case LM_MODE: - fprintf(NetTrace, "MODE "); - if (length < 3) { - fprintf(NetTrace, "(no mode??\?)"); - break; - } - { - char tbuf[64]; - sprintf(tbuf, "%s%s%s%s%s", - pointer[2]&MODE_EDIT ? "|EDIT" : "", - pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "", - pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "", - pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "", - pointer[2]&MODE_ACK ? "|ACK" : ""); - fprintf(NetTrace, "%s", tbuf[1] ? &tbuf[1] : "0"); - } - if (pointer[2]&~(MODE_MASK)) - fprintf(NetTrace, " (0x%x)", pointer[2]); - for (i = 3; i < length; i++) - fprintf(NetTrace, " ?0x%x?", pointer[i]); - break; - default: - fprintf(NetTrace, "%d (unknown)", pointer[1]); - for (i = 2; i < length; i++) - fprintf(NetTrace, " %d", pointer[i]); - } - break; - - case TELOPT_STATUS: { - const char *cp; - int j, k; - - fprintf(NetTrace, "STATUS"); - - switch (pointer[1]) { - default: - if (pointer[1] == TELQUAL_SEND) - fprintf(NetTrace, " SEND"); - else - fprintf(NetTrace, " %d (unknown)", pointer[1]); - for (i = 2; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - case TELQUAL_IS: - if (--want_status_response < 0) - want_status_response = 0; - if (NetTrace == stdout) - fprintf(NetTrace, " IS\r\n"); - else - fprintf(NetTrace, " IS\n"); - - for (i = 2; i < length; i++) { - switch(pointer[i]) { - case DO: cp = "DO"; goto common2; - case DONT: cp = "DONT"; goto common2; - case WILL: cp = "WILL"; goto common2; - case WONT: cp = "WONT"; goto common2; - common2: - i++; - if (TELOPT_OK((int)pointer[i])) - fprintf(NetTrace, " %s %s", cp, TELOPT(pointer[i])); - else - fprintf(NetTrace, " %s %d", cp, pointer[i]); - - if (NetTrace == stdout) - fprintf(NetTrace, "\r\n"); - else - fprintf(NetTrace, "\n"); - break; - - case SB: - fprintf(NetTrace, " SB "); - i++; - j = k = i; - while (j < length) { - if (pointer[j] == SE) { - if (j+1 == length) - break; - if (pointer[j+1] == SE) - j++; - else - break; - } - pointer[k++] = pointer[j++]; - } - printsub(0, &pointer[i], k - i); - if (i < length) { - fprintf(NetTrace, " SE"); - i = j; - } else - i = j - 1; - - if (NetTrace == stdout) - fprintf(NetTrace, "\r\n"); - else - fprintf(NetTrace, "\n"); - - break; - - default: - fprintf(NetTrace, " %d", pointer[i]); - break; - } - } - break; - } - break; - } - - case TELOPT_XDISPLOC: - fprintf(NetTrace, "X-DISPLAY-LOCATION "); - switch (pointer[1]) { - case TELQUAL_IS: - fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2); - break; - case TELQUAL_SEND: - fprintf(NetTrace, "SEND"); - break; - default: - fprintf(NetTrace, "- unknown qualifier %d (0x%x).", - pointer[1], pointer[1]); - } - break; - - case TELOPT_NEW_ENVIRON: - fprintf(NetTrace, "NEW-ENVIRON "); -#ifdef OLD_ENVIRON - goto env_common1; - case TELOPT_OLD_ENVIRON: - fprintf(NetTrace, "OLD-ENVIRON"); - env_common1: -#endif - switch (pointer[1]) { - case TELQUAL_IS: - fprintf(NetTrace, "IS "); - goto env_common; - case TELQUAL_SEND: - fprintf(NetTrace, "SEND "); - goto env_common; - case TELQUAL_INFO: - fprintf(NetTrace, "INFO "); - env_common: - { - int noquote = 2; -#if defined(ENV_HACK) && defined(OLD_ENVIRON) - extern int old_env_var, old_env_value; -#endif - for (i = 2; i < length; i++ ) { - switch (pointer[i]) { - case NEW_ENV_VALUE: -#ifdef OLD_ENVIRON - /* case NEW_ENV_OVAR: */ - if (pointer[0] == TELOPT_OLD_ENVIRON) { -# ifdef ENV_HACK - if (old_env_var == OLD_ENV_VALUE) - fprintf(NetTrace, "\" (VALUE) " + noquote); - else -# endif - fprintf(NetTrace, "\" VAR " + noquote); - } else -#endif /* OLD_ENVIRON */ - fprintf(NetTrace, "\" VALUE " + noquote); - noquote = 2; - break; - - case NEW_ENV_VAR: -#ifdef OLD_ENVIRON - /* case OLD_ENV_VALUE: */ - if (pointer[0] == TELOPT_OLD_ENVIRON) { -# ifdef ENV_HACK - if (old_env_value == OLD_ENV_VAR) - fprintf(NetTrace, "\" (VAR) " + noquote); - else -# endif - fprintf(NetTrace, "\" VALUE " + noquote); - } else -#endif /* OLD_ENVIRON */ - fprintf(NetTrace, "\" VAR " + noquote); - noquote = 2; - break; - - case ENV_ESC: - fprintf(NetTrace, "\" ESC " + noquote); - noquote = 2; - break; - - case ENV_USERVAR: - fprintf(NetTrace, "\" USERVAR " + noquote); - noquote = 2; - break; - - default: - if (isprint(pointer[i]) && pointer[i] != '"') { - if (noquote) { - putc('"', NetTrace); - noquote = 0; - } - putc(pointer[i], NetTrace); - } else { - fprintf(NetTrace, "\" %03o " + noquote, - pointer[i]); - noquote = 2; - } - break; - } - } - if (!noquote) - putc('"', NetTrace); - break; - } - } - break; - - default: - if (TELOPT_OK(pointer[0])) - fprintf(NetTrace, "%s (unknown)", TELOPT(pointer[0])); - else - fprintf(NetTrace, "%d (unknown)", pointer[0]); - for (i = 1; i < length; i++) - fprintf(NetTrace, " %d", pointer[i]); - break; - } - if (direction) { - if (NetTrace == stdout) - fprintf(NetTrace, "\r\n"); - else - fprintf(NetTrace, "\n"); - } - if (NetTrace == stdout) - fflush(NetTrace); - } -} - -/* EmptyTerminal - called to make sure that the terminal buffer is empty. - * Note that we consider the buffer to run all the - * way to the kernel (thus the select). - */ - -static void -EmptyTerminal(void) -{ - fd_set o; - - FD_ZERO(&o); - - if (TTYBYTES() == 0) { - FD_SET(tout, &o); - (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, - (struct timeval *) 0); /* wait for TTLOWAT */ - } else { - while (TTYBYTES()) { - (void) ttyflush(0); - FD_SET(tout, &o); - (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, - (struct timeval *) 0); /* wait for TTLOWAT */ - } - } -} - -static void -SetForExit(void) -{ - setconnmode(0); - do { - (void)telrcv(); /* Process any incoming data */ - EmptyTerminal(); - } while (ring_full_count(&netiring)); /* While there is any */ - setcommandmode(); - fflush(stdout); - fflush(stderr); - setconnmode(0); - EmptyTerminal(); /* Flush the path to the tty */ - setcommandmode(); -} - -void -Exit(int returnCode) -{ - SetForExit(); - exit(returnCode); -} - -void -ExitString(const char *string, int returnCode) -{ - SetForExit(); - fwrite(string, 1, strlen(string), stderr); - exit(returnCode); -} diff --git a/crypto/telnet/telnetd/authenc.c b/crypto/telnet/telnetd/authenc.c deleted file mode 100644 index 9377b52..0000000 --- a/crypto/telnet/telnetd/authenc.c +++ /dev/null @@ -1,90 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)authenc.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#ifdef AUTHENTICATION -#ifdef ENCRYPTION -/* Above "#ifdef"s actually "or"'ed together. XXX MarkM - */ -#include "telnetd.h" -#include <libtelnet/misc.h> - -int -net_write(unsigned char *str, int len) -{ - if (nfrontp + len < netobuf + BUFSIZ) { - output_datalen(str, len); - return(len); - } - return(0); -} - -void -net_encrypt(void) -{ -#ifdef ENCRYPTION - char *s = (nclearto > nbackp) ? nclearto : nbackp; - if (s < nfrontp && encrypt_output) { - (*encrypt_output)((unsigned char *)s, nfrontp - s); - } - nclearto = nfrontp; -#endif /* ENCRYPTION */ -} - -int -telnet_spin(void) -{ - ttloop(); - return(0); -} - -char * -telnet_getenv(char *val) -{ - return(getenv(val)); -} - -char * -telnet_gets(const char *prompt __unused, char *result __unused, int length __unused, int echo __unused) -{ - return(NULL); -} -#endif /* ENCRYPTION */ -#endif /* AUTHENTICATION */ diff --git a/crypto/telnet/telnetd/defs.h b/crypto/telnet/telnetd/defs.h deleted file mode 100644 index d727f36..0000000 --- a/crypto/telnet/telnetd/defs.h +++ /dev/null @@ -1,258 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)defs.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -/* - * Telnet server defines - */ -#include <sys/types.h> -#include <sys/param.h> - -#ifndef BSD -# define BSD 43 -#endif - -#if defined(PRINTOPTIONS) && defined(DIAGNOSTICS) -#define TELOPTS -#define TELCMDS -#define SLC_NAMES -#endif - -#if defined(SYSV_TERMIO) && !defined(USE_TERMIO) -# define USE_TERMIO -#endif - -#include <sys/socket.h> -#include <sys/wait.h> -#include <fcntl.h> -#include <sys/file.h> -#include <sys/stat.h> -#include <sys/time.h> -#ifndef FILIO_H -#include <sys/ioctl.h> -#else -#include <sys/filio.h> -#endif - -#include <netinet/in.h> - -#include <arpa/telnet.h> - -#include <stdio.h> -#ifdef __STDC__ -#include <stdlib.h> -#endif -#include <signal.h> -#include <errno.h> -#include <netdb.h> -#include <syslog.h> -#ifndef LOG_DAEMON -#define LOG_DAEMON 0 -#endif -#ifndef LOG_ODELAY -#define LOG_ODELAY 0 -#endif -#include <ctype.h> -#ifndef NO_STRING_H -#include <string.h> -#else -#include <strings.h> -#endif - -#ifndef USE_TERMIO -#include <sgtty.h> -#else -# ifdef SYSV_TERMIO -# include <termio.h> -# else -# include <termios.h> -# endif -#endif -#if !defined(USE_TERMIO) || defined(NO_CC_T) -typedef unsigned char cc_t; -#endif - -#ifdef __STDC__ -#include <unistd.h> -#endif - -#ifndef _POSIX_VDISABLE -# ifdef VDISABLE -# define _POSIX_VDISABLE VDISABLE -# else -# define _POSIX_VDISABLE ((unsigned char)'\377') -# endif -#endif - -#if !defined(TIOCSCTTY) && defined(TCSETCTTY) -# define TIOCSCTTY TCSETCTTY -#endif - -#ifndef FD_SET -#ifndef HAVE_fd_set -typedef struct fd_set { int fds_bits[1]; } fd_set; -#endif - -#define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n))) -#define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n))) -#define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n))) -#define FD_ZERO(p) ((p)->fds_bits[0] = 0) -#endif /* FD_SET */ - -/* - * I/O data buffers defines - */ -#define NETSLOP 64 - -#define NIACCUM(c) { *netip++ = c; \ - ncc++; \ - } - -/* clock manipulations */ -#define settimer(x) (clocks.x = ++clocks.system) -#define sequenceIs(x,y) (clocks.x < clocks.y) - -/* - * Linemode support states, in decreasing order of importance - */ -#define REAL_LINEMODE 0x04 -#define KLUDGE_OK 0x03 -#define NO_AUTOKLUDGE 0x02 -#define KLUDGE_LINEMODE 0x01 -#define NO_LINEMODE 0x00 - -/* - * Structures of information for each special character function. - */ -typedef struct { - unsigned char flag; /* the flags for this function */ - cc_t val; /* the value of the special character */ -} slcent, *Slcent; - -typedef struct { - slcent defset; /* the default settings */ - slcent current; /* the current settings */ - cc_t *sptr; /* a pointer to the char in */ - /* system data structures */ -} slcfun, *Slcfun; - -#ifdef DIAGNOSTICS -/* - * Diagnostics capabilities - */ -#define TD_REPORT 0x01 /* Report operations to client */ -#define TD_EXERCISE 0x02 /* Exercise client's implementation */ -#define TD_NETDATA 0x04 /* Display received data stream */ -#define TD_PTYDATA 0x08 /* Display data passed to pty */ -#define TD_OPTIONS 0x10 /* Report just telnet options */ -#endif /* DIAGNOSTICS */ - -/* - * We keep track of each side of the option negotiation. - */ - -#define MY_STATE_WILL 0x01 -#define MY_WANT_STATE_WILL 0x02 -#define MY_STATE_DO 0x04 -#define MY_WANT_STATE_DO 0x08 - -/* - * Macros to check the current state of things - */ - -#define my_state_is_do(opt) (options[opt]&MY_STATE_DO) -#define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) -#define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) -#define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) - -#define my_state_is_dont(opt) (!my_state_is_do(opt)) -#define my_state_is_wont(opt) (!my_state_is_will(opt)) -#define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) -#define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) - -#define set_my_state_do(opt) (options[opt] |= MY_STATE_DO) -#define set_my_state_will(opt) (options[opt] |= MY_STATE_WILL) -#define set_my_want_state_do(opt) (options[opt] |= MY_WANT_STATE_DO) -#define set_my_want_state_will(opt) (options[opt] |= MY_WANT_STATE_WILL) - -#define set_my_state_dont(opt) (options[opt] &= ~MY_STATE_DO) -#define set_my_state_wont(opt) (options[opt] &= ~MY_STATE_WILL) -#define set_my_want_state_dont(opt) (options[opt] &= ~MY_WANT_STATE_DO) -#define set_my_want_state_wont(opt) (options[opt] &= ~MY_WANT_STATE_WILL) - -/* - * Tricky code here. What we want to know is if the MY_STATE_WILL - * and MY_WANT_STATE_WILL bits have the same value. Since the two - * bits are adjacent, a little arithmatic will show that by adding - * in the lower bit, the upper bit will be set if the two bits were - * different, and clear if they were the same. - */ -#define my_will_wont_is_changing(opt) \ - ((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL) - -#define my_do_dont_is_changing(opt) \ - ((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO) - -/* - * Make everything symetrical - */ - -#define HIS_STATE_WILL MY_STATE_DO -#define HIS_WANT_STATE_WILL MY_WANT_STATE_DO -#define HIS_STATE_DO MY_STATE_WILL -#define HIS_WANT_STATE_DO MY_WANT_STATE_WILL - -#define his_state_is_do my_state_is_will -#define his_state_is_will my_state_is_do -#define his_want_state_is_do my_want_state_is_will -#define his_want_state_is_will my_want_state_is_do - -#define his_state_is_dont my_state_is_wont -#define his_state_is_wont my_state_is_dont -#define his_want_state_is_dont my_want_state_is_wont -#define his_want_state_is_wont my_want_state_is_dont - -#define set_his_state_do set_my_state_will -#define set_his_state_will set_my_state_do -#define set_his_want_state_do set_my_want_state_will -#define set_his_want_state_will set_my_want_state_do - -#define set_his_state_dont set_my_state_wont -#define set_his_state_wont set_my_state_dont -#define set_his_want_state_dont set_my_want_state_wont -#define set_his_want_state_wont set_my_want_state_dont - -#define his_will_wont_is_changing my_do_dont_is_changing -#define his_do_dont_is_changing my_will_wont_is_changing diff --git a/crypto/telnet/telnetd/ext.h b/crypto/telnet/telnetd/ext.h deleted file mode 100644 index 448ba68..0000000 --- a/crypto/telnet/telnetd/ext.h +++ /dev/null @@ -1,218 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)ext.h 8.2 (Berkeley) 12/15/93 - * $FreeBSD$ - */ - -/* - * Telnet server variable declarations - */ -extern char options[256]; -extern char do_dont_resp[256]; -extern char will_wont_resp[256]; -extern int linemode; /* linemode on/off */ -#ifdef LINEMODE -extern int uselinemode; /* what linemode to use (on/off) */ -extern int editmode; /* edit modes in use */ -extern int useeditmode; /* edit modes to use */ -extern int alwayslinemode; /* command line option */ -extern int lmodetype; /* Client support for linemode */ -#endif /* LINEMODE */ -extern int flowmode; /* current flow control state */ -extern int restartany; /* restart output on any character state */ -#ifdef DIAGNOSTICS -extern int diagnostic; /* telnet diagnostic capabilities */ -#endif /* DIAGNOSTICS */ -#ifdef BFTPDAEMON -extern int bftpd; /* behave as bftp daemon */ -#endif /* BFTPDAEMON */ -#ifdef AUTHENTICATION -extern int auth_level; -#endif - -extern slcfun slctab[NSLC + 1]; /* slc mapping table */ - -char *terminaltype; - -/* - * I/O data buffers, pointers, and counters. - */ -extern char ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp; - -extern char netibuf[BUFSIZ], *netip; - -extern char netobuf[BUFSIZ], *nfrontp, *nbackp; -extern char *neturg; /* one past last bye of urgent data */ - -extern int pcc, ncc; - -extern int pty, net; -extern char line[16]; -extern int SYNCHing; /* we are in TELNET SYNCH mode */ - -extern void - _termstat(void), - add_slc(char, char, cc_t), - check_slc(void), - change_slc(char, char, cc_t), - cleanup(int), - clientstat(int, int, int), - copy_termbuf(char *, size_t), - deferslc(void), - defer_terminit(void), - do_opt_slc(unsigned char *, int), - doeof(void), - dooption(int), - dontoption(int), - edithost(char *, char *), - fatal(int, const char *), - fatalperror(int, const char *), - get_slc_defaults(void), - init_env(void), - init_termbuf(void), - interrupt(void), - localstat(void), - flowstat(void), - netclear(void), - netflush(void), -#ifdef DIAGNOSTICS - printoption(const char *, int), - printdata(const char *, char *, int), - printsub(char, unsigned char *, int), -#endif - process_slc(unsigned char, unsigned char, cc_t), - ptyflush(void), - putchr(int), - putf(char *, char *), - recv_ayt(void), - send_do(int, int), - send_dont(int, int), - send_slc(void), - send_status(void), - send_will(int, int), - send_wont(int, int), - sendbrk(void), - sendsusp(void), - set_termbuf(void), - start_login(char *, int, char *), - start_slc(int), -#ifdef AUTHENTICATION - start_slave(char *), -#else - start_slave(char *, int, char *), -#endif - suboption(void), - telrcv(void), - ttloop(void), - tty_binaryin(int), - tty_binaryout(int); - -extern int - end_slc(unsigned char **), - getnpty(void), -#ifndef convex - getpty(int *), -#endif - login_tty(int), - spcset(int, cc_t *, cc_t **), - stilloob(int), - terminit(void), - termstat(void), - tty_flowmode(void), - tty_restartany(void), - tty_isbinaryin(void), - tty_isbinaryout(void), - tty_iscrnl(void), - tty_isecho(void), - tty_isediting(void), - tty_islitecho(void), - tty_isnewmap(void), - tty_israw(void), - tty_issofttab(void), - tty_istrapsig(void), - tty_linemode(void); - -extern void - tty_rspeed(int), - tty_setecho(int), - tty_setedit(int), - tty_setlinemode(int), - tty_setlitecho(int), - tty_setsig(int), - tty_setsofttab(int), - tty_tspeed(int), - willoption(int), - wontoption(int); - -int output_data(const char *, ...) __printflike(1, 2); -void output_datalen(const char *, int); -void startslave(char *, int, char *); - -#ifdef ENCRYPTION -extern void (*encrypt_output)(unsigned char *, int); -extern int (*decrypt_input)(int); -extern char *nclearto; -#endif /* ENCRYPTION */ - - -/* - * The following are some clocks used to decide how to interpret - * the relationship between various variables. - */ - -extern struct { - int - system, /* what the current time is */ - echotoggle, /* last time user entered echo character */ - modenegotiated, /* last time operating mode negotiated */ - didnetreceive, /* last time we read data from network */ - ttypesubopt, /* ttype subopt is received */ - tspeedsubopt, /* tspeed subopt is received */ - environsubopt, /* environ subopt is received */ - oenvironsubopt, /* old environ subopt is received */ - xdisplocsubopt, /* xdisploc subopt is received */ - baseline, /* time started to do timed action */ - gotDM; /* when did we last see a data mark */ -} clocks; - -#ifndef DEFAULT_IM -# ifdef ultrix -# define DEFAULT_IM "\r\n\r\nULTRIX (%h) (%t)\r\n\r\r\n\r" -# else -# ifdef __FreeBSD__ -# define DEFAULT_IM "\r\n\r\nFreeBSD (%h) (%t)\r\n\r\r\n\r" -# else -# define DEFAULT_IM "\r\n\r\n4.4 BSD UNIX (%h) (%t)\r\n\r\r\n\r" -# endif -# endif -#endif diff --git a/crypto/telnet/telnetd/global.c b/crypto/telnet/telnetd/global.c deleted file mode 100644 index 2ed82d0..0000000 --- a/crypto/telnet/telnetd/global.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)global.c 8.1 (Berkeley) 6/4/93"; -#endif /* not lint */ -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * Allocate global variables. We do this - * by including the header file that defines - * them all as externs, but first we define - * the keyword "extern" to be nothing, so that - * we will actually allocate the space. - */ - -#include "defs.h" -#define extern -#include "ext.h" diff --git a/crypto/telnet/telnetd/pathnames.h b/crypto/telnet/telnetd/pathnames.h deleted file mode 100644 index ed8ee88..0000000 --- a/crypto/telnet/telnetd/pathnames.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)pathnames.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -#if BSD > 43 - -# include <paths.h> - -# ifndef _PATH_LOGIN -# define _PATH_LOGIN "/usr/bin/login" -# endif - -#else - -# define _PATH_TTY "/dev/tty" -# ifndef _PATH_LOGIN -# define _PATH_LOGIN "/bin/login" -# endif - -#endif - -#ifdef BFTPDAEMON -#define BFTPPATH "/usr/ucb/bftp" -#endif /* BFTPDAEMON */ diff --git a/crypto/telnet/telnetd/slc.c b/crypto/telnet/telnetd/slc.c deleted file mode 100644 index ad03441..0000000 --- a/crypto/telnet/telnetd/slc.c +++ /dev/null @@ -1,484 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)slc.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "telnetd.h" - -#ifdef LINEMODE -/* - * local variables - */ -static unsigned char *def_slcbuf = (unsigned char *)0; -static int def_slclen = 0; -static int slcchange; /* change to slc is requested */ -static unsigned char *slcptr; /* pointer into slc buffer */ -static unsigned char slcbuf[NSLC*6]; /* buffer for slc negotiation */ - -/* - * send_slc - * - * Write out the current special characters to the client. - */ -void -send_slc(void) -{ - int i; - - /* - * Send out list of triplets of special characters - * to client. We only send info on the characters - * that are currently supported. - */ - for (i = 1; i <= NSLC; i++) { - if ((slctab[i].defset.flag & SLC_LEVELBITS) == SLC_NOSUPPORT) - continue; - add_slc((unsigned char)i, slctab[i].current.flag, - slctab[i].current.val); - } - -} /* end of send_slc */ - -/* - * default_slc - * - * Set pty special characters to all the defaults. - */ -static void -default_slc(void) -{ - int i; - - for (i = 1; i <= NSLC; i++) { - slctab[i].current.val = slctab[i].defset.val; - if (slctab[i].current.val == (cc_t)(_POSIX_VDISABLE)) - slctab[i].current.flag = SLC_NOSUPPORT; - else - slctab[i].current.flag = slctab[i].defset.flag; - if (slctab[i].sptr) { - *(slctab[i].sptr) = slctab[i].defset.val; - } - } - slcchange = 1; - -} /* end of default_slc */ -#endif /* LINEMODE */ - -/* - * get_slc_defaults - * - * Initialize the slc mapping table. - */ -void -get_slc_defaults(void) -{ - int i; - - init_termbuf(); - - for (i = 1; i <= NSLC; i++) { - slctab[i].defset.flag = - spcset(i, &slctab[i].defset.val, &slctab[i].sptr); - slctab[i].current.flag = SLC_NOSUPPORT; - slctab[i].current.val = 0; - } - -} /* end of get_slc_defaults */ - -#ifdef LINEMODE -/* - * add_slc - * - * Add an slc triplet to the slc buffer. - */ -void -add_slc(char func, char flag, cc_t val) -{ - - if ((*slcptr++ = (unsigned char)func) == 0xff) - *slcptr++ = 0xff; - - if ((*slcptr++ = (unsigned char)flag) == 0xff) - *slcptr++ = 0xff; - - if ((*slcptr++ = (unsigned char)val) == 0xff) - *slcptr++ = 0xff; - -} /* end of add_slc */ - -/* - * start_slc - * - * Get ready to process incoming slc's and respond to them. - * - * The parameter getit is non-zero if it is necessary to grab a copy - * of the terminal control structures. - */ -void -start_slc(int getit) -{ - - slcchange = 0; - if (getit) - init_termbuf(); - (void) sprintf((char *)slcbuf, "%c%c%c%c", - IAC, SB, TELOPT_LINEMODE, LM_SLC); - slcptr = slcbuf + 4; - -} /* end of start_slc */ - -/* - * end_slc - * - * Finish up the slc negotiation. If something to send, then send it. - */ -int -end_slc(unsigned char **bufp) -{ - int len; - - /* - * If a change has occured, store the new terminal control - * structures back to the terminal driver. - */ - if (slcchange) { - set_termbuf(); - } - - /* - * If the pty state has not yet been fully processed and there is a - * deferred slc request from the client, then do not send any - * sort of slc negotiation now. We will respond to the client's - * request very soon. - */ - if (def_slcbuf && (terminit() == 0)) { - return(0); - } - - if (slcptr > (slcbuf + 4)) { - if (bufp) { - *bufp = &slcbuf[4]; - return(slcptr - slcbuf - 4); - } else { - (void) sprintf((char *)slcptr, "%c%c", IAC, SE); - slcptr += 2; - len = slcptr - slcbuf; - output_datalen(slcbuf, len); - netflush(); /* force it out immediately */ - DIAG(TD_OPTIONS, printsub('>', slcbuf+2, len-2);); - } - } - return (0); - -} /* end of end_slc */ - -/* - * process_slc - * - * Figure out what to do about the client's slc - */ -void -process_slc(unsigned char func, unsigned char flag, cc_t val) -{ - int hislevel, mylevel, ack; - - /* - * Ensure that we know something about this function - */ - if (func > NSLC) { - add_slc(func, SLC_NOSUPPORT, 0); - return; - } - - /* - * Process the special case requests of 0 SLC_DEFAULT 0 - * and 0 SLC_VARIABLE 0. Be a little forgiving here, don't - * worry about whether the value is actually 0 or not. - */ - if (func == 0) { - if ((flag = flag & SLC_LEVELBITS) == SLC_DEFAULT) { - default_slc(); - send_slc(); - } else if (flag == SLC_VARIABLE) { - send_slc(); - } - return; - } - - /* - * Appears to be a function that we know something about. So - * get on with it and see what we know. - */ - - hislevel = flag & SLC_LEVELBITS; - mylevel = slctab[func].current.flag & SLC_LEVELBITS; - ack = flag & SLC_ACK; - /* - * ignore the command if: - * the function value and level are the same as what we already have; - * or the level is the same and the ack bit is set - */ - if (hislevel == mylevel && (val == slctab[func].current.val || ack)) { - return; - } else if (ack) { - /* - * If we get here, we got an ack, but the levels don't match. - * This shouldn't happen. If it does, it is probably because - * we have sent two requests to set a variable without getting - * a response between them, and this is the first response. - * So, ignore it, and wait for the next response. - */ - return; - } else { - change_slc(func, flag, val); - } - -} /* end of process_slc */ - -/* - * change_slc - * - * Process a request to change one of our special characters. - * Compare client's request with what we are capable of supporting. - */ -void -change_slc(char func, char flag, cc_t val) -{ - int hislevel, mylevel; - - hislevel = flag & SLC_LEVELBITS; - mylevel = slctab[(int)func].defset.flag & SLC_LEVELBITS; - /* - * If client is setting a function to NOSUPPORT - * or DEFAULT, then we can easily and directly - * accomodate the request. - */ - if (hislevel == SLC_NOSUPPORT) { - slctab[(int)func].current.flag = flag; - slctab[(int)func].current.val = (cc_t)_POSIX_VDISABLE; - flag |= SLC_ACK; - add_slc(func, flag, val); - return; - } - if (hislevel == SLC_DEFAULT) { - /* - * Special case here. If client tells us to use - * the default on a function we don't support, then - * return NOSUPPORT instead of what we may have as a - * default level of DEFAULT. - */ - if (mylevel == SLC_DEFAULT) { - slctab[(int)func].current.flag = SLC_NOSUPPORT; - } else { - slctab[(int)func].current.flag = slctab[(int)func].defset.flag; - } - slctab[(int)func].current.val = slctab[(int)func].defset.val; - add_slc(func, slctab[(int)func].current.flag, - slctab[(int)func].current.val); - return; - } - - /* - * Client wants us to change to a new value or he - * is telling us that he can't change to our value. - * Some of the slc's we support and can change, - * some we do support but can't change, - * and others we don't support at all. - * If we can change it then we have a pointer to - * the place to put the new value, so change it, - * otherwise, continue the negotiation. - */ - if (slctab[(int)func].sptr) { - /* - * We can change this one. - */ - slctab[(int)func].current.val = val; - *(slctab[(int)func].sptr) = val; - slctab[(int)func].current.flag = flag; - flag |= SLC_ACK; - slcchange = 1; - add_slc(func, flag, val); - } else { - /* - * It is not possible for us to support this - * request as he asks. - * - * If our level is DEFAULT, then just ack whatever was - * sent. - * - * If he can't change and we can't change, - * then degenerate to NOSUPPORT. - * - * Otherwise we send our level back to him, (CANTCHANGE - * or NOSUPPORT) and if CANTCHANGE, send - * our value as well. - */ - if (mylevel == SLC_DEFAULT) { - slctab[(int)func].current.flag = flag; - slctab[(int)func].current.val = val; - flag |= SLC_ACK; - } else if (hislevel == SLC_CANTCHANGE && - mylevel == SLC_CANTCHANGE) { - flag &= ~SLC_LEVELBITS; - flag |= SLC_NOSUPPORT; - slctab[(int)func].current.flag = flag; - } else { - flag &= ~SLC_LEVELBITS; - flag |= mylevel; - slctab[(int)func].current.flag = flag; - if (mylevel == SLC_CANTCHANGE) { - slctab[(int)func].current.val = - slctab[(int)func].defset.val; - val = slctab[(int)func].current.val; - } - } - add_slc(func, flag, val); - } - -} /* end of change_slc */ - -#if defined(USE_TERMIO) && (VEOF == VMIN) -cc_t oldeofc = '\004'; -#endif - -/* - * check_slc - * - * Check the special characters in use and notify the client if any have - * changed. Only those characters that are capable of being changed are - * likely to have changed. If a local change occurs, kick the support level - * and flags up to the defaults. - */ -void -check_slc(void) -{ - int i; - - for (i = 1; i <= NSLC; i++) { -#if defined(USE_TERMIO) && (VEOF == VMIN) - /* - * In a perfect world this would be a neat little - * function. But in this world, we should not notify - * client of changes to the VEOF char when - * ICANON is off, because it is not representing - * a special character. - */ - if (i == SLC_EOF) { - if (!tty_isediting()) - continue; - else if (slctab[i].sptr) - oldeofc = *(slctab[i].sptr); - } -#endif /* defined(USE_TERMIO) && defined(SYSV_TERMIO) */ - if (slctab[i].sptr && - (*(slctab[i].sptr) != slctab[i].current.val)) { - slctab[i].current.val = *(slctab[i].sptr); - if (*(slctab[i].sptr) == (cc_t)_POSIX_VDISABLE) - slctab[i].current.flag = SLC_NOSUPPORT; - else - slctab[i].current.flag = slctab[i].defset.flag; - add_slc((unsigned char)i, slctab[i].current.flag, - slctab[i].current.val); - } - } -} /* check_slc */ - -/* - * do_opt_slc - * - * Process an slc option buffer. Defer processing of incoming slc's - * until after the terminal state has been processed. Save the first slc - * request that comes along, but discard all others. - * - * ptr points to the beginning of the buffer, len is the length. - */ -void -do_opt_slc(unsigned char *ptr, int len) -{ - unsigned char func, flag; - cc_t val; - unsigned char *end = ptr + len; - - if (terminit()) { /* go ahead */ - while (ptr < end) { - func = *ptr++; - if (ptr >= end) break; - flag = *ptr++; - if (ptr >= end) break; - val = (cc_t)*ptr++; - - process_slc(func, flag, val); - - } - } else { - /* - * save this slc buffer if it is the first, otherwise dump - * it. - */ - if (def_slcbuf == (unsigned char *)0) { - def_slclen = len; - def_slcbuf = (unsigned char *)malloc((unsigned)len); - if (def_slcbuf == (unsigned char *)0) - return; /* too bad */ - memmove(def_slcbuf, ptr, len); - } - } - -} /* end of do_opt_slc */ - -/* - * deferslc - * - * Do slc stuff that was deferred. - */ -void -deferslc(void) -{ - if (def_slcbuf) { - start_slc(1); - do_opt_slc(def_slcbuf, def_slclen); - (void) end_slc(0); - free(def_slcbuf); - def_slcbuf = (unsigned char *)0; - def_slclen = 0; - } - -} /* end of deferslc */ - -#endif /* LINEMODE */ diff --git a/crypto/telnet/telnetd/state.c b/crypto/telnet/telnetd/state.c deleted file mode 100644 index 9db4516..0000000 --- a/crypto/telnet/telnetd/state.c +++ /dev/null @@ -1,1631 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)state.c 8.5 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <stdarg.h> -#include "telnetd.h" -#ifdef AUTHENTICATION -#include <libtelnet/auth.h> -#endif -#ifdef ENCRYPTION -#include <libtelnet/encrypt.h> -#endif - -unsigned char doopt[] = { IAC, DO, '%', 'c', 0 }; -unsigned char dont[] = { IAC, DONT, '%', 'c', 0 }; -unsigned char will[] = { IAC, WILL, '%', 'c', 0 }; -unsigned char wont[] = { IAC, WONT, '%', 'c', 0 }; -int not42 = 1; - -/* - * Buffer for sub-options, and macros - * for suboptions buffer manipulations - */ -unsigned char subbuffer[512], *subpointer= subbuffer, *subend= subbuffer; - -#define SB_CLEAR() subpointer = subbuffer -#define SB_TERM() { subend = subpointer; SB_CLEAR(); } -#define SB_ACCUM(c) if (subpointer < (subbuffer+sizeof subbuffer)) { \ - *subpointer++ = (c); \ - } -#define SB_GET() ((*subpointer++)&0xff) -#define SB_EOF() (subpointer >= subend) -#define SB_LEN() (subend - subpointer) - -#ifdef ENV_HACK -unsigned char *subsave; -#define SB_SAVE() subsave = subpointer; -#define SB_RESTORE() subpointer = subsave; -#endif - - -/* - * State for recv fsm - */ -#define TS_DATA 0 /* base state */ -#define TS_IAC 1 /* look for double IAC's */ -#define TS_CR 2 /* CR-LF ->'s CR */ -#define TS_SB 3 /* throw away begin's... */ -#define TS_SE 4 /* ...end's (suboption negotiation) */ -#define TS_WILL 5 /* will option negotiation */ -#define TS_WONT 6 /* wont " */ -#define TS_DO 7 /* do " */ -#define TS_DONT 8 /* dont " */ - -static void doclientstat(void); - -void -telrcv(void) -{ - int c; - static int state = TS_DATA; - - while (ncc > 0) { - if ((&ptyobuf[BUFSIZ] - pfrontp) < 2) - break; - c = *netip++ & 0377, ncc--; -#ifdef ENCRYPTION - if (decrypt_input) - c = (*decrypt_input)(c); -#endif /* ENCRYPTION */ - switch (state) { - - case TS_CR: - state = TS_DATA; - /* Strip off \n or \0 after a \r */ - if ((c == 0) || (c == '\n')) { - break; - } - /* FALLTHROUGH */ - - case TS_DATA: - if (c == IAC) { - state = TS_IAC; - break; - } - /* - * We now map \r\n ==> \r for pragmatic reasons. - * Many client implementations send \r\n when - * the user hits the CarriageReturn key. - * - * We USED to map \r\n ==> \n, since \r\n says - * that we want to be in column 1 of the next - * printable line, and \n is the standard - * unix way of saying that (\r is only good - * if CRMOD is set, which it normally is). - */ - if ((c == '\r') && his_state_is_wont(TELOPT_BINARY)) { - int nc = *netip; -#ifdef ENCRYPTION - if (decrypt_input) - nc = (*decrypt_input)(nc & 0xff); -#endif /* ENCRYPTION */ -#ifdef LINEMODE - /* - * If we are operating in linemode, - * convert to local end-of-line. - */ - if (linemode && (ncc > 0) && (('\n' == nc) || - ((0 == nc) && tty_iscrnl())) ) { - netip++; ncc--; - c = '\n'; - } else -#endif - { -#ifdef ENCRYPTION - if (decrypt_input) - (void)(*decrypt_input)(-1); -#endif /* ENCRYPTION */ - state = TS_CR; - } - } - *pfrontp++ = c; - break; - - case TS_IAC: -gotiac: switch (c) { - - /* - * Send the process on the pty side an - * interrupt. Do this with a NULL or - * interrupt char; depending on the tty mode. - */ - case IP: - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - interrupt(); - break; - - case BREAK: - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - sendbrk(); - break; - - /* - * Are You There? - */ - case AYT: - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - recv_ayt(); - break; - - /* - * Abort Output - */ - case AO: - { - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - ptyflush(); /* half-hearted */ - init_termbuf(); - - if (slctab[SLC_AO].sptr && - *slctab[SLC_AO].sptr != (cc_t)(_POSIX_VDISABLE)) { - *pfrontp++ = - (unsigned char)*slctab[SLC_AO].sptr; - } - - netclear(); /* clear buffer back */ - output_data("%c%c", IAC, DM); - neturg = nfrontp-1; /* off by one XXX */ - DIAG(TD_OPTIONS, - printoption("td: send IAC", DM)); - break; - } - - /* - * Erase Character and - * Erase Line - */ - case EC: - case EL: - { - cc_t ch; - - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - ptyflush(); /* half-hearted */ - init_termbuf(); - if (c == EC) - ch = *slctab[SLC_EC].sptr; - else - ch = *slctab[SLC_EL].sptr; - if (ch != (cc_t)(_POSIX_VDISABLE)) - *pfrontp++ = (unsigned char)ch; - break; - } - - /* - * Check for urgent data... - */ - case DM: - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - SYNCHing = stilloob(net); - settimer(gotDM); - break; - - - /* - * Begin option subnegotiation... - */ - case SB: - state = TS_SB; - SB_CLEAR(); - continue; - - case WILL: - state = TS_WILL; - continue; - - case WONT: - state = TS_WONT; - continue; - - case DO: - state = TS_DO; - continue; - - case DONT: - state = TS_DONT; - continue; - case EOR: - if (his_state_is_will(TELOPT_EOR)) - doeof(); - break; - - /* - * Handle RFC 10xx Telnet linemode option additions - * to command stream (EOF, SUSP, ABORT). - */ - case xEOF: - doeof(); - break; - - case SUSP: - sendsusp(); - break; - - case ABORT: - sendbrk(); - break; - - case IAC: - *pfrontp++ = c; - break; - } - state = TS_DATA; - break; - - case TS_SB: - if (c == IAC) { - state = TS_SE; - } else { - SB_ACCUM(c); - } - break; - - case TS_SE: - if (c != SE) { - if (c != IAC) { - /* - * bad form of suboption negotiation. - * handle it in such a way as to avoid - * damage to local state. Parse - * suboption buffer found so far, - * then treat remaining stream as - * another command sequence. - */ - - /* for DIAGNOSTICS */ - SB_ACCUM(IAC); - SB_ACCUM(c); - subpointer -= 2; - - SB_TERM(); - suboption(); - state = TS_IAC; - goto gotiac; - } - SB_ACCUM(c); - state = TS_SB; - } else { - /* for DIAGNOSTICS */ - SB_ACCUM(IAC); - SB_ACCUM(SE); - subpointer -= 2; - - SB_TERM(); - suboption(); /* handle sub-option */ - state = TS_DATA; - } - break; - - case TS_WILL: - willoption(c); - state = TS_DATA; - continue; - - case TS_WONT: - wontoption(c); - state = TS_DATA; - continue; - - case TS_DO: - dooption(c); - state = TS_DATA; - continue; - - case TS_DONT: - dontoption(c); - state = TS_DATA; - continue; - - default: - syslog(LOG_ERR, "panic state=%d", state); - printf("telnetd: panic state=%d\n", state); - exit(1); - } - } -} /* end of telrcv */ - -/* - * The will/wont/do/dont state machines are based on Dave Borman's - * Telnet option processing state machine. - * - * These correspond to the following states: - * my_state = the last negotiated state - * want_state = what I want the state to go to - * want_resp = how many requests I have sent - * All state defaults are negative, and resp defaults to 0. - * - * When initiating a request to change state to new_state: - * - * if ((want_resp == 0 && new_state == my_state) || want_state == new_state) { - * do nothing; - * } else { - * want_state = new_state; - * send new_state; - * want_resp++; - * } - * - * When receiving new_state: - * - * if (want_resp) { - * want_resp--; - * if (want_resp && (new_state == my_state)) - * want_resp--; - * } - * if ((want_resp == 0) && (new_state != want_state)) { - * if (ok_to_switch_to new_state) - * want_state = new_state; - * else - * want_resp++; - * send want_state; - * } - * my_state = new_state; - * - * Note that new_state is implied in these functions by the function itself. - * will and do imply positive new_state, wont and dont imply negative. - * - * Finally, there is one catch. If we send a negative response to a - * positive request, my_state will be the positive while want_state will - * remain negative. my_state will revert to negative when the negative - * acknowlegment arrives from the peer. Thus, my_state generally tells - * us not only the last negotiated state, but also tells us what the peer - * wants to be doing as well. It is important to understand this difference - * as we may wish to be processing data streams based on our desired state - * (want_state) or based on what the peer thinks the state is (my_state). - * - * This all works fine because if the peer sends a positive request, the data - * that we receive prior to negative acknowlegment will probably be affected - * by the positive state, and we can process it as such (if we can; if we - * can't then it really doesn't matter). If it is that important, then the - * peer probably should be buffering until this option state negotiation - * is complete. - * - */ -void -send_do(int option, int init) -{ - if (init) { - if ((do_dont_resp[option] == 0 && his_state_is_will(option)) || - his_want_state_is_will(option)) - return; - /* - * Special case for TELOPT_TM: We send a DO, but pretend - * that we sent a DONT, so that we can send more DOs if - * we want to. - */ - if (option == TELOPT_TM) - set_his_want_state_wont(option); - else - set_his_want_state_will(option); - do_dont_resp[option]++; - } - output_data((const char *)doopt, option); - - DIAG(TD_OPTIONS, printoption("td: send do", option)); -} - -void -willoption(int option) -{ - int changeok = 0; - void (*func)(void) = 0; - - /* - * process input from peer. - */ - - DIAG(TD_OPTIONS, printoption("td: recv will", option)); - - if (do_dont_resp[option]) { - do_dont_resp[option]--; - if (do_dont_resp[option] && his_state_is_will(option)) - do_dont_resp[option]--; - } - if (do_dont_resp[option] == 0) { - if (his_want_state_is_wont(option)) { - switch (option) { - - case TELOPT_BINARY: - init_termbuf(); - tty_binaryin(1); - set_termbuf(); - changeok++; - break; - - case TELOPT_ECHO: - /* - * See comments below for more info. - */ - not42 = 0; /* looks like a 4.2 system */ - break; - - case TELOPT_TM: -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - /* - * This telnetd implementation does not really - * support timing marks, it just uses them to - * support the kludge linemode stuff. If we - * receive a will or wont TM in response to our - * do TM request that may have been sent to - * determine kludge linemode support, process - * it, otherwise TM should get a negative - * response back. - */ - /* - * Handle the linemode kludge stuff. - * If we are not currently supporting any - * linemode at all, then we assume that this - * is the client telling us to use kludge - * linemode in response to our query. Set the - * linemode type that is to be supported, note - * that the client wishes to use linemode, and - * eat the will TM as though it never arrived. - */ - if (lmodetype < KLUDGE_LINEMODE) { - lmodetype = KLUDGE_LINEMODE; - clientstat(TELOPT_LINEMODE, WILL, 0); - send_wont(TELOPT_SGA, 1); - } else if (lmodetype == NO_AUTOKLUDGE) { - lmodetype = KLUDGE_OK; - } -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - /* - * We never respond to a WILL TM, and - * we leave the state WONT. - */ - return; - - case TELOPT_LFLOW: - /* - * If we are going to support flow control - * option, then don't worry peer that we can't - * change the flow control characters. - */ - slctab[SLC_XON].defset.flag &= ~SLC_LEVELBITS; - slctab[SLC_XON].defset.flag |= SLC_DEFAULT; - slctab[SLC_XOFF].defset.flag &= ~SLC_LEVELBITS; - slctab[SLC_XOFF].defset.flag |= SLC_DEFAULT; - case TELOPT_TTYPE: - case TELOPT_SGA: - case TELOPT_NAWS: - case TELOPT_TSPEED: - case TELOPT_XDISPLOC: - case TELOPT_NEW_ENVIRON: - case TELOPT_OLD_ENVIRON: - changeok++; - break; - -#ifdef LINEMODE - case TELOPT_LINEMODE: -# ifdef KLUDGELINEMODE - /* - * Note client's desire to use linemode. - */ - lmodetype = REAL_LINEMODE; -# endif /* KLUDGELINEMODE */ - func = doclientstat; - changeok++; - break; -#endif /* LINEMODE */ - -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: - func = auth_request; - changeok++; - break; -#endif - -#ifdef ENCRYPTION - case TELOPT_ENCRYPT: - func = encrypt_send_support; - changeok++; - break; -#endif /* ENCRYPTION */ - - default: - break; - } - if (changeok) { - set_his_want_state_will(option); - send_do(option, 0); - } else { - do_dont_resp[option]++; - send_dont(option, 0); - } - } else { - /* - * Option processing that should happen when - * we receive conformation of a change in - * state that we had requested. - */ - switch (option) { - case TELOPT_ECHO: - not42 = 0; /* looks like a 4.2 system */ - /* - * Egads, he responded "WILL ECHO". Turn - * it off right now! - */ - send_dont(option, 1); - /* - * "WILL ECHO". Kludge upon kludge! - * A 4.2 client is now echoing user input at - * the tty. This is probably undesireable and - * it should be stopped. The client will - * respond WONT TM to the DO TM that we send to - * check for kludge linemode. When the WONT TM - * arrives, linemode will be turned off and a - * change propogated to the pty. This change - * will cause us to process the new pty state - * in localstat(), which will notice that - * linemode is off and send a WILL ECHO - * so that we are properly in character mode and - * all is well. - */ - break; -#ifdef LINEMODE - case TELOPT_LINEMODE: -# ifdef KLUDGELINEMODE - /* - * Note client's desire to use linemode. - */ - lmodetype = REAL_LINEMODE; -# endif /* KLUDGELINEMODE */ - func = doclientstat; - break; -#endif /* LINEMODE */ - -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: - func = auth_request; - break; -#endif - -#ifdef ENCRYPTION - case TELOPT_ENCRYPT: - func = encrypt_send_support; - break; -#endif /* ENCRYPTION */ - case TELOPT_LFLOW: - func = flowstat; - break; - } - } - } - set_his_state_will(option); - if (func) - (*func)(); -} /* end of willoption */ - -void -send_dont(int option, int init) -{ - if (init) { - if ((do_dont_resp[option] == 0 && his_state_is_wont(option)) || - his_want_state_is_wont(option)) - return; - set_his_want_state_wont(option); - do_dont_resp[option]++; - } - output_data((const char *)dont, option); - - DIAG(TD_OPTIONS, printoption("td: send dont", option)); -} - -void -wontoption(int option) -{ - /* - * Process client input. - */ - - DIAG(TD_OPTIONS, printoption("td: recv wont", option)); - - if (do_dont_resp[option]) { - do_dont_resp[option]--; - if (do_dont_resp[option] && his_state_is_wont(option)) - do_dont_resp[option]--; - } - if (do_dont_resp[option] == 0) { - if (his_want_state_is_will(option)) { - /* it is always ok to change to negative state */ - switch (option) { - case TELOPT_ECHO: - not42 = 1; /* doesn't seem to be a 4.2 system */ - break; - - case TELOPT_BINARY: - init_termbuf(); - tty_binaryin(0); - set_termbuf(); - break; - -#ifdef LINEMODE - case TELOPT_LINEMODE: -# ifdef KLUDGELINEMODE - /* - * If real linemode is supported, then client is - * asking to turn linemode off. - */ - if (lmodetype != REAL_LINEMODE) - break; - lmodetype = KLUDGE_LINEMODE; -# endif /* KLUDGELINEMODE */ - clientstat(TELOPT_LINEMODE, WONT, 0); - break; -#endif /* LINEMODE */ - - case TELOPT_TM: - /* - * If we get a WONT TM, and had sent a DO TM, - * don't respond with a DONT TM, just leave it - * as is. Short circut the state machine to - * achive this. - */ - set_his_want_state_wont(TELOPT_TM); - return; - - case TELOPT_LFLOW: - /* - * If we are not going to support flow control - * option, then let peer know that we can't - * change the flow control characters. - */ - slctab[SLC_XON].defset.flag &= ~SLC_LEVELBITS; - slctab[SLC_XON].defset.flag |= SLC_CANTCHANGE; - slctab[SLC_XOFF].defset.flag &= ~SLC_LEVELBITS; - slctab[SLC_XOFF].defset.flag |= SLC_CANTCHANGE; - break; - -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: - auth_finished(0, AUTH_REJECT); - break; -#endif - - /* - * For options that we might spin waiting for - * sub-negotiation, if the client turns off the - * option rather than responding to the request, - * we have to treat it here as if we got a response - * to the sub-negotiation, (by updating the timers) - * so that we'll break out of the loop. - */ - case TELOPT_TTYPE: - settimer(ttypesubopt); - break; - - case TELOPT_TSPEED: - settimer(tspeedsubopt); - break; - - case TELOPT_XDISPLOC: - settimer(xdisplocsubopt); - break; - - case TELOPT_OLD_ENVIRON: - settimer(oenvironsubopt); - break; - - case TELOPT_NEW_ENVIRON: - settimer(environsubopt); - break; - - default: - break; - } - set_his_want_state_wont(option); - if (his_state_is_will(option)) - send_dont(option, 0); - } else { - switch (option) { - case TELOPT_TM: -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - if (lmodetype < NO_AUTOKLUDGE) { - lmodetype = NO_LINEMODE; - clientstat(TELOPT_LINEMODE, WONT, 0); - send_will(TELOPT_SGA, 1); - send_will(TELOPT_ECHO, 1); - } -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - break; - -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: - auth_finished(0, AUTH_REJECT); - break; -#endif - default: - break; - } - } - } - set_his_state_wont(option); - -} /* end of wontoption */ - -void -send_will(int option, int init) -{ - if (init) { - if ((will_wont_resp[option] == 0 && my_state_is_will(option))|| - my_want_state_is_will(option)) - return; - set_my_want_state_will(option); - will_wont_resp[option]++; - } - output_data((const char *)will, option); - - DIAG(TD_OPTIONS, printoption("td: send will", option)); -} - -#if !defined(LINEMODE) || !defined(KLUDGELINEMODE) -/* - * When we get a DONT SGA, we will try once to turn it - * back on. If the other side responds DONT SGA, we - * leave it at that. This is so that when we talk to - * clients that understand KLUDGELINEMODE but not LINEMODE, - * we'll keep them in char-at-a-time mode. - */ -int turn_on_sga = 0; -#endif - -void -dooption(int option) -{ - int changeok = 0; - - /* - * Process client input. - */ - - DIAG(TD_OPTIONS, printoption("td: recv do", option)); - - if (will_wont_resp[option]) { - will_wont_resp[option]--; - if (will_wont_resp[option] && my_state_is_will(option)) - will_wont_resp[option]--; - } - if ((will_wont_resp[option] == 0) && (my_want_state_is_wont(option))) { - switch (option) { - case TELOPT_ECHO: -#ifdef LINEMODE -# ifdef KLUDGELINEMODE - if (lmodetype == NO_LINEMODE) -# else - if (his_state_is_wont(TELOPT_LINEMODE)) -# endif -#endif - { - init_termbuf(); - tty_setecho(1); - set_termbuf(); - } - changeok++; - break; - - case TELOPT_BINARY: - init_termbuf(); - tty_binaryout(1); - set_termbuf(); - changeok++; - break; - - case TELOPT_SGA: -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - /* - * If kludge linemode is in use, then we must - * process an incoming do SGA for linemode - * purposes. - */ - if (lmodetype == KLUDGE_LINEMODE) { - /* - * Receipt of "do SGA" in kludge - * linemode is the peer asking us to - * turn off linemode. Make note of - * the request. - */ - clientstat(TELOPT_LINEMODE, WONT, 0); - /* - * If linemode did not get turned off - * then don't tell peer that we did. - * Breaking here forces a wont SGA to - * be returned. - */ - if (linemode) - break; - } -#else - turn_on_sga = 0; -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - changeok++; - break; - - case TELOPT_STATUS: - changeok++; - break; - - case TELOPT_TM: - /* - * Special case for TM. We send a WILL, but - * pretend we sent a WONT. - */ - send_will(option, 0); - set_my_want_state_wont(option); - set_my_state_wont(option); - return; - - case TELOPT_LOGOUT: - /* - * When we get a LOGOUT option, respond - * with a WILL LOGOUT, make sure that - * it gets written out to the network, - * and then just go away... - */ - set_my_want_state_will(TELOPT_LOGOUT); - send_will(TELOPT_LOGOUT, 0); - set_my_state_will(TELOPT_LOGOUT); - (void)netflush(); - cleanup(0); - /* NOT REACHED */ - break; - -#ifdef ENCRYPTION - case TELOPT_ENCRYPT: - changeok++; - break; -#endif /* ENCRYPTION */ - case TELOPT_LINEMODE: - case TELOPT_TTYPE: - case TELOPT_NAWS: - case TELOPT_TSPEED: - case TELOPT_LFLOW: - case TELOPT_XDISPLOC: -#ifdef TELOPT_ENVIRON - case TELOPT_NEW_ENVIRON: -#endif - case TELOPT_OLD_ENVIRON: - default: - break; - } - if (changeok) { - set_my_want_state_will(option); - send_will(option, 0); - } else { - will_wont_resp[option]++; - send_wont(option, 0); - } - } - set_my_state_will(option); - -} /* end of dooption */ - -void -send_wont(int option, int init) -{ - if (init) { - if ((will_wont_resp[option] == 0 && my_state_is_wont(option)) || - my_want_state_is_wont(option)) - return; - set_my_want_state_wont(option); - will_wont_resp[option]++; - } - output_data((const char *)wont, option); - - DIAG(TD_OPTIONS, printoption("td: send wont", option)); -} - -void -dontoption(int option) -{ - /* - * Process client input. - */ - - - DIAG(TD_OPTIONS, printoption("td: recv dont", option)); - - if (will_wont_resp[option]) { - will_wont_resp[option]--; - if (will_wont_resp[option] && my_state_is_wont(option)) - will_wont_resp[option]--; - } - if ((will_wont_resp[option] == 0) && (my_want_state_is_will(option))) { - switch (option) { - case TELOPT_BINARY: - init_termbuf(); - tty_binaryout(0); - set_termbuf(); - break; - - case TELOPT_ECHO: /* we should stop echoing */ -#ifdef LINEMODE -# ifdef KLUDGELINEMODE - if ((lmodetype != REAL_LINEMODE) && - (lmodetype != KLUDGE_LINEMODE)) -# else - if (his_state_is_wont(TELOPT_LINEMODE)) -# endif -#endif - { - init_termbuf(); - tty_setecho(0); - set_termbuf(); - } - break; - - case TELOPT_SGA: -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - /* - * If kludge linemode is in use, then we - * must process an incoming do SGA for - * linemode purposes. - */ - if ((lmodetype == KLUDGE_LINEMODE) || - (lmodetype == KLUDGE_OK)) { - /* - * The client is asking us to turn - * linemode on. - */ - lmodetype = KLUDGE_LINEMODE; - clientstat(TELOPT_LINEMODE, WILL, 0); - /* - * If we did not turn line mode on, - * then what do we say? Will SGA? - * This violates design of telnet. - * Gross. Very Gross. - */ - } - break; -#else - set_my_want_state_wont(option); - if (my_state_is_will(option)) - send_wont(option, 0); - set_my_state_wont(option); - if (turn_on_sga ^= 1) - send_will(option, 1); - return; -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - - default: - break; - } - - set_my_want_state_wont(option); - if (my_state_is_will(option)) - send_wont(option, 0); - } - set_my_state_wont(option); - -} /* end of dontoption */ - -#ifdef ENV_HACK -int env_ovar = -1; -int env_ovalue = -1; -#else /* ENV_HACK */ -# define env_ovar OLD_ENV_VAR -# define env_ovalue OLD_ENV_VALUE -#endif /* ENV_HACK */ - -/* - * suboption() - * - * Look at the sub-option buffer, and try to be helpful to the other - * side. - * - * Currently we recognize: - * - * Terminal type is - * Linemode - * Window size - * Terminal speed - */ -void -suboption(void) -{ - int subchar; - - DIAG(TD_OPTIONS, {netflush(); printsub('<', subpointer, SB_LEN()+2);}); - - subchar = SB_GET(); - switch (subchar) { - case TELOPT_TSPEED: { - int xspeed, rspeed; - - if (his_state_is_wont(TELOPT_TSPEED)) /* Ignore if option disabled */ - break; - - settimer(tspeedsubopt); - - if (SB_EOF() || SB_GET() != TELQUAL_IS) - return; - - xspeed = atoi((char *)subpointer); - - while (SB_GET() != ',' && !SB_EOF()); - if (SB_EOF()) - return; - - rspeed = atoi((char *)subpointer); - clientstat(TELOPT_TSPEED, xspeed, rspeed); - - break; - - } /* end of case TELOPT_TSPEED */ - - case TELOPT_TTYPE: { /* Yaaaay! */ - static char terminalname[41]; - - if (his_state_is_wont(TELOPT_TTYPE)) /* Ignore if option disabled */ - break; - settimer(ttypesubopt); - - if (SB_EOF() || SB_GET() != TELQUAL_IS) { - return; /* ??? XXX but, this is the most robust */ - } - - terminaltype = terminalname; - - while ((terminaltype < (terminalname + sizeof terminalname-1)) && - !SB_EOF()) { - int c; - - c = SB_GET(); - if (isupper(c)) { - c = tolower(c); - } - *terminaltype++ = c; /* accumulate name */ - } - *terminaltype = 0; - terminaltype = terminalname; - break; - } /* end of case TELOPT_TTYPE */ - - case TELOPT_NAWS: { - int xwinsize, ywinsize; - - if (his_state_is_wont(TELOPT_NAWS)) /* Ignore if option disabled */ - break; - - if (SB_EOF()) - return; - xwinsize = SB_GET() << 8; - if (SB_EOF()) - return; - xwinsize |= SB_GET(); - if (SB_EOF()) - return; - ywinsize = SB_GET() << 8; - if (SB_EOF()) - return; - ywinsize |= SB_GET(); - clientstat(TELOPT_NAWS, xwinsize, ywinsize); - - break; - - } /* end of case TELOPT_NAWS */ - -#ifdef LINEMODE - case TELOPT_LINEMODE: { - int request; - - if (his_state_is_wont(TELOPT_LINEMODE)) /* Ignore if option disabled */ - break; - /* - * Process linemode suboptions. - */ - if (SB_EOF()) - break; /* garbage was sent */ - request = SB_GET(); /* get will/wont */ - - if (SB_EOF()) - break; /* another garbage check */ - - if (request == LM_SLC) { /* SLC is not preceeded by WILL or WONT */ - /* - * Process suboption buffer of slc's - */ - start_slc(1); - do_opt_slc(subpointer, subend - subpointer); - (void) end_slc(0); - break; - } else if (request == LM_MODE) { - if (SB_EOF()) - return; - useeditmode = SB_GET(); /* get mode flag */ - clientstat(LM_MODE, 0, 0); - break; - } - - if (SB_EOF()) - break; - switch (SB_GET()) { /* what suboption? */ - case LM_FORWARDMASK: - /* - * According to spec, only server can send request for - * forwardmask, and client can only return a positive response. - * So don't worry about it. - */ - - default: - break; - } - break; - } /* end of case TELOPT_LINEMODE */ -#endif - case TELOPT_STATUS: { - int mode; - - if (SB_EOF()) - break; - mode = SB_GET(); - switch (mode) { - case TELQUAL_SEND: - if (my_state_is_will(TELOPT_STATUS)) - send_status(); - break; - - case TELQUAL_IS: - break; - - default: - break; - } - break; - } /* end of case TELOPT_STATUS */ - - case TELOPT_XDISPLOC: { - if (SB_EOF() || SB_GET() != TELQUAL_IS) - return; - settimer(xdisplocsubopt); - subpointer[SB_LEN()] = '\0'; - (void)setenv("DISPLAY", (char *)subpointer, 1); - break; - } /* end of case TELOPT_XDISPLOC */ - -#ifdef TELOPT_NEW_ENVIRON - case TELOPT_NEW_ENVIRON: -#endif - case TELOPT_OLD_ENVIRON: { - int c; - char *cp, *varp, *valp; - - if (SB_EOF()) - return; - c = SB_GET(); - if (c == TELQUAL_IS) { - if (subchar == TELOPT_OLD_ENVIRON) - settimer(oenvironsubopt); - else - settimer(environsubopt); - } else if (c != TELQUAL_INFO) { - return; - } - -#ifdef TELOPT_NEW_ENVIRON - if (subchar == TELOPT_NEW_ENVIRON) { - while (!SB_EOF()) { - c = SB_GET(); - if ((c == NEW_ENV_VAR) || (c == ENV_USERVAR)) - break; - } - } else -#endif - { -#ifdef ENV_HACK - /* - * We only want to do this if we haven't already decided - * whether or not the other side has its VALUE and VAR - * reversed. - */ - if (env_ovar < 0) { - int last = -1; /* invalid value */ - int empty = 0; - int got_var = 0, got_value = 0, got_uservar = 0; - - /* - * The other side might have its VALUE and VAR values - * reversed. To be interoperable, we need to determine - * which way it is. If the first recognized character - * is a VAR or VALUE, then that will tell us what - * type of client it is. If the fist recognized - * character is a USERVAR, then we continue scanning - * the suboption looking for two consecutive - * VAR or VALUE fields. We should not get two - * consecutive VALUE fields, so finding two - * consecutive VALUE or VAR fields will tell us - * what the client is. - */ - SB_SAVE(); - while (!SB_EOF()) { - c = SB_GET(); - switch(c) { - case OLD_ENV_VAR: - if (last < 0 || last == OLD_ENV_VAR - || (empty && (last == OLD_ENV_VALUE))) - goto env_ovar_ok; - got_var++; - last = OLD_ENV_VAR; - break; - case OLD_ENV_VALUE: - if (last < 0 || last == OLD_ENV_VALUE - || (empty && (last == OLD_ENV_VAR))) - goto env_ovar_wrong; - got_value++; - last = OLD_ENV_VALUE; - break; - case ENV_USERVAR: - /* count strings of USERVAR as one */ - if (last != ENV_USERVAR) - got_uservar++; - if (empty) { - if (last == OLD_ENV_VALUE) - goto env_ovar_ok; - if (last == OLD_ENV_VAR) - goto env_ovar_wrong; - } - last = ENV_USERVAR; - break; - case ENV_ESC: - if (!SB_EOF()) - c = SB_GET(); - /* FALLTHROUGH */ - default: - empty = 0; - continue; - } - empty = 1; - } - if (empty) { - if (last == OLD_ENV_VALUE) - goto env_ovar_ok; - if (last == OLD_ENV_VAR) - goto env_ovar_wrong; - } - /* - * Ok, the first thing was a USERVAR, and there - * are not two consecutive VAR or VALUE commands, - * and none of the VAR or VALUE commands are empty. - * If the client has sent us a well-formed option, - * then the number of VALUEs received should always - * be less than or equal to the number of VARs and - * USERVARs received. - * - * If we got exactly as many VALUEs as VARs and - * USERVARs, the client has the same definitions. - * - * If we got exactly as many VARs as VALUEs and - * USERVARS, the client has reversed definitions. - */ - if (got_uservar + got_var == got_value) { - env_ovar_ok: - env_ovar = OLD_ENV_VAR; - env_ovalue = OLD_ENV_VALUE; - } else if (got_uservar + got_value == got_var) { - env_ovar_wrong: - env_ovar = OLD_ENV_VALUE; - env_ovalue = OLD_ENV_VAR; - DIAG(TD_OPTIONS, - output_data("ENVIRON VALUE and VAR are reversed!\r\n")); - - } - } - SB_RESTORE(); -#endif - - while (!SB_EOF()) { - c = SB_GET(); - if ((c == env_ovar) || (c == ENV_USERVAR)) - break; - } - } - - if (SB_EOF()) - return; - - cp = varp = (char *)subpointer; - valp = 0; - - while (!SB_EOF()) { - c = SB_GET(); - if (subchar == TELOPT_OLD_ENVIRON) { - if (c == env_ovar) - c = NEW_ENV_VAR; - else if (c == env_ovalue) - c = NEW_ENV_VALUE; - } - switch (c) { - - case NEW_ENV_VALUE: - *cp = '\0'; - cp = valp = (char *)subpointer; - break; - - case NEW_ENV_VAR: - case ENV_USERVAR: - *cp = '\0'; - if (valp) - (void)setenv(varp, valp, 1); - else - unsetenv(varp); - cp = varp = (char *)subpointer; - valp = 0; - break; - - case ENV_ESC: - if (SB_EOF()) - break; - c = SB_GET(); - /* FALLTHROUGH */ - default: - *cp++ = c; - break; - } - } - *cp = '\0'; - if (valp) - (void)setenv(varp, valp, 1); - else - unsetenv(varp); - break; - } /* end of case TELOPT_NEW_ENVIRON */ -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: - if (SB_EOF()) - break; - switch(SB_GET()) { - case TELQUAL_SEND: - case TELQUAL_REPLY: - /* - * These are sent by us and cannot be sent by - * the client. - */ - break; - case TELQUAL_IS: - auth_is(subpointer, SB_LEN()); - break; - case TELQUAL_NAME: - auth_name(subpointer, SB_LEN()); - break; - } - break; -#endif -#ifdef ENCRYPTION - case TELOPT_ENCRYPT: - if (SB_EOF()) - break; - switch(SB_GET()) { - case ENCRYPT_SUPPORT: - encrypt_support(subpointer, SB_LEN()); - break; - case ENCRYPT_IS: - encrypt_is(subpointer, SB_LEN()); - break; - case ENCRYPT_REPLY: - encrypt_reply(subpointer, SB_LEN()); - break; - case ENCRYPT_START: - encrypt_start(subpointer, SB_LEN()); - break; - case ENCRYPT_END: - encrypt_end(); - break; - case ENCRYPT_REQSTART: - encrypt_request_start(subpointer, SB_LEN()); - break; - case ENCRYPT_REQEND: - /* - * We can always send an REQEND so that we cannot - * get stuck encrypting. We should only get this - * if we have been able to get in the correct mode - * anyhow. - */ - encrypt_request_end(); - break; - case ENCRYPT_ENC_KEYID: - encrypt_enc_keyid(subpointer, SB_LEN()); - break; - case ENCRYPT_DEC_KEYID: - encrypt_dec_keyid(subpointer, SB_LEN()); - break; - default: - break; - } - break; -#endif /* ENCRYPTION */ - - default: - break; - } /* end of switch */ - -} /* end of suboption */ - -static void -doclientstat(void) -{ - clientstat(TELOPT_LINEMODE, WILL, 0); -} - -#define ADD(c) *ncp++ = c -#define ADD_DATA(c) { *ncp++ = c; if (c == SE || c == IAC) *ncp++ = c; } -void -send_status(void) -{ - unsigned char statusbuf[256]; - unsigned char *ncp; - unsigned char i; - - ncp = statusbuf; - - netflush(); /* get rid of anything waiting to go out */ - - ADD(IAC); - ADD(SB); - ADD(TELOPT_STATUS); - ADD(TELQUAL_IS); - - /* - * We check the want_state rather than the current state, - * because if we received a DO/WILL for an option that we - * don't support, and the other side didn't send a DONT/WONT - * in response to our WONT/DONT, then the "state" will be - * WILL/DO, and the "want_state" will be WONT/DONT. We - * need to go by the latter. - */ - for (i = 0; i < (unsigned char)NTELOPTS; i++) { - if (my_want_state_is_will(i)) { - ADD(WILL); - ADD_DATA(i); - if (i == IAC) - ADD(IAC); - } - if (his_want_state_is_will(i)) { - ADD(DO); - ADD_DATA(i); - if (i == IAC) - ADD(IAC); - } - } - - if (his_want_state_is_will(TELOPT_LFLOW)) { - ADD(SB); - ADD(TELOPT_LFLOW); - if (flowmode) { - ADD(LFLOW_ON); - } else { - ADD(LFLOW_OFF); - } - ADD(SE); - - if (restartany >= 0) { - ADD(SB); - ADD(TELOPT_LFLOW); - if (restartany) { - ADD(LFLOW_RESTART_ANY); - } else { - ADD(LFLOW_RESTART_XON); - } - ADD(SE); - } - } - -#ifdef LINEMODE - if (his_want_state_is_will(TELOPT_LINEMODE)) { - unsigned char *cp, *cpe; - int len; - - ADD(SB); - ADD(TELOPT_LINEMODE); - ADD(LM_MODE); - ADD_DATA(editmode); - ADD(SE); - - ADD(SB); - ADD(TELOPT_LINEMODE); - ADD(LM_SLC); - start_slc(0); - send_slc(); - len = end_slc(&cp); - for (cpe = cp + len; cp < cpe; cp++) - ADD_DATA(*cp); - ADD(SE); - } -#endif /* LINEMODE */ - - ADD(IAC); - ADD(SE); - - output_datalen(statusbuf, ncp - statusbuf); - netflush(); /* Send it on its way */ - - DIAG(TD_OPTIONS, - {printsub('>', statusbuf, ncp - statusbuf); netflush();}); -} - -/* - * This function appends data to nfrontp and advances nfrontp. - * Returns the number of characters written altogether (the - * buffer may have been flushed in the process). - */ - -int -output_data(const char *format, ...) -{ - va_list args; - int len; - char *buf; - - va_start(args, format); - if ((len = vasprintf(&buf, format, args)) == -1) - return -1; - output_datalen(buf, len); - va_end(args); - free(buf); - return (len); -} - -void -output_datalen(const char *buf, int len) -{ - int remaining, copied; - - remaining = BUFSIZ - (nfrontp - netobuf); - while (len > 0) { - /* Free up enough space if the room is too low*/ - if ((len > BUFSIZ ? BUFSIZ : len) > remaining) { - netflush(); - remaining = BUFSIZ - (nfrontp - netobuf); - } - - /* Copy out as much as will fit */ - copied = remaining > len ? len : remaining; - memmove(nfrontp, buf, copied); - nfrontp += copied; - len -= copied; - remaining -= copied; - buf += copied; - } - return; -} diff --git a/crypto/telnet/telnetd/sys_term.c b/crypto/telnet/telnetd/sys_term.c deleted file mode 100644 index 151c5b4..0000000 --- a/crypto/telnet/telnetd/sys_term.c +++ /dev/null @@ -1,1339 +0,0 @@ - /* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)sys_term.c 8.4+1 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <sys/tty.h> -#include <libutil.h> -#include <stdlib.h> -#include <utmp.h> - -#include "telnetd.h" -#include "pathnames.h" - -#ifdef AUTHENTICATION -#include <libtelnet/auth.h> -#endif - -int cleanopen(char *); -void scrub_env(void); - -struct utmp wtmp; - -#ifdef _PATH_WTMP -char wtmpf[] = _PATH_WTMP; -#else -char wtmpf[] = "/var/log/wtmp"; -#endif -#ifdef _PATH_UTMP -char utmpf[] = _PATH_UTMP; -#else -char utmpf[] = "/var/run/utmp"; -#endif - -char *envinit[3]; -extern char **environ; - -#define SCPYN(a, b) (void) strncpy(a, b, sizeof(a)) -#define SCMPN(a, b) strncmp(a, b, sizeof(a)) - -#ifdef t_erase -#undef t_erase -#undef t_kill -#undef t_intrc -#undef t_quitc -#undef t_startc -#undef t_stopc -#undef t_eofc -#undef t_brkc -#undef t_suspc -#undef t_dsuspc -#undef t_rprntc -#undef t_flushc -#undef t_werasc -#undef t_lnextc -#endif - -#ifndef USE_TERMIO -struct termbuf { - struct sgttyb sg; - struct tchars tc; - struct ltchars ltc; - int state; - int lflags; -} termbuf, termbuf2; -# define cfsetospeed(tp, val) (tp)->sg.sg_ospeed = (val) -# define cfsetispeed(tp, val) (tp)->sg.sg_ispeed = (val) -# define cfgetospeed(tp) (tp)->sg.sg_ospeed -# define cfgetispeed(tp) (tp)->sg.sg_ispeed -#else /* USE_TERMIO */ -# ifndef TCSANOW -# ifdef TCSETS -# define TCSANOW TCSETS -# define TCSADRAIN TCSETSW -# define tcgetattr(f, t) ioctl(f, TCGETS, (char *)t) -# else -# ifdef TCSETA -# define TCSANOW TCSETA -# define TCSADRAIN TCSETAW -# define tcgetattr(f, t) ioctl(f, TCGETA, (char *)t) -# else -# define TCSANOW TIOCSETA -# define TCSADRAIN TIOCSETAW -# define tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t) -# endif -# endif -# define tcsetattr(f, a, t) ioctl(f, a, t) -# define cfsetospeed(tp, val) (tp)->c_cflag &= ~CBAUD; \ - (tp)->c_cflag |= (val) -# define cfgetospeed(tp) ((tp)->c_cflag & CBAUD) -# ifdef CIBAUD -# define cfsetispeed(tp, val) (tp)->c_cflag &= ~CIBAUD; \ - (tp)->c_cflag |= ((val)<<IBSHIFT) -# define cfgetispeed(tp) (((tp)->c_cflag & CIBAUD)>>IBSHIFT) -# else -# define cfsetispeed(tp, val) (tp)->c_cflag &= ~CBAUD; \ - (tp)->c_cflag |= (val) -# define cfgetispeed(tp) ((tp)->c_cflag & CBAUD) -# endif -# endif /* TCSANOW */ -struct termios termbuf, termbuf2; /* pty control structure */ -#endif /* USE_TERMIO */ - -#include <sys/types.h> -#include <libutil.h> - -int cleanopen(char *); -void scrub_env(void); -static char **addarg(char **, const char *); - -/* - * init_termbuf() - * copy_termbuf(cp) - * set_termbuf() - * - * These three routines are used to get and set the "termbuf" structure - * to and from the kernel. init_termbuf() gets the current settings. - * copy_termbuf() hands in a new "termbuf" to write to the kernel, and - * set_termbuf() writes the structure into the kernel. - */ - -void -init_termbuf(void) -{ -#ifndef USE_TERMIO - (void) ioctl(pty, TIOCGETP, (char *)&termbuf.sg); - (void) ioctl(pty, TIOCGETC, (char *)&termbuf.tc); - (void) ioctl(pty, TIOCGLTC, (char *)&termbuf.ltc); -# ifdef TIOCGSTATE - (void) ioctl(pty, TIOCGSTATE, (char *)&termbuf.state); -# endif -#else - (void) tcgetattr(pty, &termbuf); -#endif - termbuf2 = termbuf; -} - -#if defined(LINEMODE) && defined(TIOCPKT_IOCTL) -void -copy_termbuf(char *cp, size_t len) -{ - if (len > sizeof(termbuf)) - len = sizeof(termbuf); - memmove((char *)&termbuf, cp, len); - termbuf2 = termbuf; -} -#endif /* defined(LINEMODE) && defined(TIOCPKT_IOCTL) */ - -void -set_termbuf(void) -{ - /* - * Only make the necessary changes. - */ -#ifndef USE_TERMIO - if (memcmp((char *)&termbuf.sg, (char *)&termbuf2.sg, - sizeof(termbuf.sg))) - (void) ioctl(pty, TIOCSETN, (char *)&termbuf.sg); - if (memcmp((char *)&termbuf.tc, (char *)&termbuf2.tc, - sizeof(termbuf.tc))) - (void) ioctl(pty, TIOCSETC, (char *)&termbuf.tc); - if (memcmp((char *)&termbuf.ltc, (char *)&termbuf2.ltc, - sizeof(termbuf.ltc))) - (void) ioctl(pty, TIOCSLTC, (char *)&termbuf.ltc); - if (termbuf.lflags != termbuf2.lflags) - (void) ioctl(pty, TIOCLSET, (char *)&termbuf.lflags); -#else /* USE_TERMIO */ - if (memcmp((char *)&termbuf, (char *)&termbuf2, sizeof(termbuf))) - (void) tcsetattr(pty, TCSANOW, &termbuf); -#endif /* USE_TERMIO */ -} - - -/* - * spcset(func, valp, valpp) - * - * This function takes various special characters (func), and - * sets *valp to the current value of that character, and - * *valpp to point to where in the "termbuf" structure that - * value is kept. - * - * It returns the SLC_ level of support for this function. - */ - -#ifndef USE_TERMIO -int -spcset(int func, cc_t *valp, cc_t **valpp) -{ - switch(func) { - case SLC_EOF: - *valp = termbuf.tc.t_eofc; - *valpp = (cc_t *)&termbuf.tc.t_eofc; - return(SLC_VARIABLE); - case SLC_EC: - *valp = termbuf.sg.sg_erase; - *valpp = (cc_t *)&termbuf.sg.sg_erase; - return(SLC_VARIABLE); - case SLC_EL: - *valp = termbuf.sg.sg_kill; - *valpp = (cc_t *)&termbuf.sg.sg_kill; - return(SLC_VARIABLE); - case SLC_IP: - *valp = termbuf.tc.t_intrc; - *valpp = (cc_t *)&termbuf.tc.t_intrc; - return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_ABORT: - *valp = termbuf.tc.t_quitc; - *valpp = (cc_t *)&termbuf.tc.t_quitc; - return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_XON: - *valp = termbuf.tc.t_startc; - *valpp = (cc_t *)&termbuf.tc.t_startc; - return(SLC_VARIABLE); - case SLC_XOFF: - *valp = termbuf.tc.t_stopc; - *valpp = (cc_t *)&termbuf.tc.t_stopc; - return(SLC_VARIABLE); - case SLC_AO: - *valp = termbuf.ltc.t_flushc; - *valpp = (cc_t *)&termbuf.ltc.t_flushc; - return(SLC_VARIABLE); - case SLC_SUSP: - *valp = termbuf.ltc.t_suspc; - *valpp = (cc_t *)&termbuf.ltc.t_suspc; - return(SLC_VARIABLE); - case SLC_EW: - *valp = termbuf.ltc.t_werasc; - *valpp = (cc_t *)&termbuf.ltc.t_werasc; - return(SLC_VARIABLE); - case SLC_RP: - *valp = termbuf.ltc.t_rprntc; - *valpp = (cc_t *)&termbuf.ltc.t_rprntc; - return(SLC_VARIABLE); - case SLC_LNEXT: - *valp = termbuf.ltc.t_lnextc; - *valpp = (cc_t *)&termbuf.ltc.t_lnextc; - return(SLC_VARIABLE); - case SLC_FORW1: - *valp = termbuf.tc.t_brkc; - *valpp = (cc_t *)&termbuf.ltc.t_lnextc; - return(SLC_VARIABLE); - case SLC_BRK: - case SLC_SYNCH: - case SLC_AYT: - case SLC_EOR: - *valp = (cc_t)0; - *valpp = (cc_t *)0; - return(SLC_DEFAULT); - default: - *valp = (cc_t)0; - *valpp = (cc_t *)0; - return(SLC_NOSUPPORT); - } -} - -#else /* USE_TERMIO */ - - -#define setval(a, b) *valp = termbuf.c_cc[a]; \ - *valpp = &termbuf.c_cc[a]; \ - return(b); -#define defval(a) *valp = ((cc_t)a); *valpp = (cc_t *)0; return(SLC_DEFAULT); - -int -spcset(int func, cc_t *valp, cc_t **valpp) -{ - switch(func) { - case SLC_EOF: - setval(VEOF, SLC_VARIABLE); - case SLC_EC: - setval(VERASE, SLC_VARIABLE); - case SLC_EL: - setval(VKILL, SLC_VARIABLE); - case SLC_IP: - setval(VINTR, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_ABORT: - setval(VQUIT, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_XON: -#ifdef VSTART - setval(VSTART, SLC_VARIABLE); -#else - defval(0x13); -#endif - case SLC_XOFF: -#ifdef VSTOP - setval(VSTOP, SLC_VARIABLE); -#else - defval(0x11); -#endif - case SLC_EW: -#ifdef VWERASE - setval(VWERASE, SLC_VARIABLE); -#else - defval(0); -#endif - case SLC_RP: -#ifdef VREPRINT - setval(VREPRINT, SLC_VARIABLE); -#else - defval(0); -#endif - case SLC_LNEXT: -#ifdef VLNEXT - setval(VLNEXT, SLC_VARIABLE); -#else - defval(0); -#endif - case SLC_AO: -#if !defined(VDISCARD) && defined(VFLUSHO) -# define VDISCARD VFLUSHO -#endif -#ifdef VDISCARD - setval(VDISCARD, SLC_VARIABLE|SLC_FLUSHOUT); -#else - defval(0); -#endif - case SLC_SUSP: -#ifdef VSUSP - setval(VSUSP, SLC_VARIABLE|SLC_FLUSHIN); -#else - defval(0); -#endif -#ifdef VEOL - case SLC_FORW1: - setval(VEOL, SLC_VARIABLE); -#endif -#ifdef VEOL2 - case SLC_FORW2: - setval(VEOL2, SLC_VARIABLE); -#endif - case SLC_AYT: -#ifdef VSTATUS - setval(VSTATUS, SLC_VARIABLE); -#else - defval(0); -#endif - - case SLC_BRK: - case SLC_SYNCH: - case SLC_EOR: - defval(0); - - default: - *valp = 0; - *valpp = 0; - return(SLC_NOSUPPORT); - } -} -#endif /* USE_TERMIO */ - -/* - * getpty() - * - * Allocate a pty. As a side effect, the external character - * array "line" contains the name of the slave side. - * - * Returns the file descriptor of the opened pty. - */ -char alpha[] = "0123456789abcdefghijklmnopqrstuv"; -char line[16]; - -int -getpty(int *ptynum __unused) -{ - int p; - const char *cp; - char *p1, *p2; - int i; - - (void) strcpy(line, _PATH_DEV); - (void) strcat(line, "ptyXX"); - p1 = &line[8]; - p2 = &line[9]; - - for (cp = "pqrsPQRS"; *cp; cp++) { - struct stat stb; - - *p1 = *cp; - *p2 = '0'; - /* - * This stat() check is just to keep us from - * looping through all 256 combinations if there - * aren't that many ptys available. - */ - if (stat(line, &stb) < 0) - break; - for (i = 0; i < 32; i++) { - *p2 = alpha[i]; - p = open(line, 2); - if (p > 0) { - line[5] = 't'; - chown(line, 0, 0); - chmod(line, 0600); - return(p); - } - } - } - return(-1); -} - -#ifdef LINEMODE -/* - * tty_flowmode() Find out if flow control is enabled or disabled. - * tty_linemode() Find out if linemode (external processing) is enabled. - * tty_setlinemod(on) Turn on/off linemode. - * tty_isecho() Find out if echoing is turned on. - * tty_setecho(on) Enable/disable character echoing. - * tty_israw() Find out if terminal is in RAW mode. - * tty_binaryin(on) Turn on/off BINARY on input. - * tty_binaryout(on) Turn on/off BINARY on output. - * tty_isediting() Find out if line editing is enabled. - * tty_istrapsig() Find out if signal trapping is enabled. - * tty_setedit(on) Turn on/off line editing. - * tty_setsig(on) Turn on/off signal trapping. - * tty_issofttab() Find out if tab expansion is enabled. - * tty_setsofttab(on) Turn on/off soft tab expansion. - * tty_islitecho() Find out if typed control chars are echoed literally - * tty_setlitecho() Turn on/off literal echo of control chars - * tty_tspeed(val) Set transmit speed to val. - * tty_rspeed(val) Set receive speed to val. - */ - - -int -tty_linemode(void) -{ -#ifndef USE_TERMIO - return(termbuf.state & TS_EXTPROC); -#else - return(termbuf.c_lflag & EXTPROC); -#endif -} - -void -tty_setlinemode(int on) -{ -#ifdef TIOCEXT - set_termbuf(); - (void) ioctl(pty, TIOCEXT, (char *)&on); - init_termbuf(); -#else /* !TIOCEXT */ -# ifdef EXTPROC - if (on) - termbuf.c_lflag |= EXTPROC; - else - termbuf.c_lflag &= ~EXTPROC; -# endif -#endif /* TIOCEXT */ -} -#endif /* LINEMODE */ - -int -tty_isecho(void) -{ -#ifndef USE_TERMIO - return (termbuf.sg.sg_flags & ECHO); -#else - return (termbuf.c_lflag & ECHO); -#endif -} - -int -tty_flowmode(void) -{ -#ifndef USE_TERMIO - return(((termbuf.tc.t_startc) > 0 && (termbuf.tc.t_stopc) > 0) ? 1 : 0); -#else - return((termbuf.c_iflag & IXON) ? 1 : 0); -#endif -} - -int -tty_restartany(void) -{ -#ifndef USE_TERMIO -# ifdef DECCTQ - return((termbuf.lflags & DECCTQ) ? 0 : 1); -# else - return(-1); -# endif -#else - return((termbuf.c_iflag & IXANY) ? 1 : 0); -#endif -} - -void -tty_setecho(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags |= ECHO|CRMOD; - else - termbuf.sg.sg_flags &= ~(ECHO|CRMOD); -#else - if (on) - termbuf.c_lflag |= ECHO; - else - termbuf.c_lflag &= ~ECHO; -#endif -} - -int -tty_israw(void) -{ -#ifndef USE_TERMIO - return(termbuf.sg.sg_flags & RAW); -#else - return(!(termbuf.c_lflag & ICANON)); -#endif -} - -#ifdef AUTHENTICATION -#if defined(NO_LOGIN_F) && defined(LOGIN_R) -int -tty_setraw(int on) -{ -# ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags |= RAW; - else - termbuf.sg.sg_flags &= ~RAW; -# else - if (on) - termbuf.c_lflag &= ~ICANON; - else - termbuf.c_lflag |= ICANON; -# endif -} -#endif -#endif /* AUTHENTICATION */ - -void -tty_binaryin(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.lflags |= LPASS8; - else - termbuf.lflags &= ~LPASS8; -#else - if (on) { - termbuf.c_iflag &= ~ISTRIP; - } else { - termbuf.c_iflag |= ISTRIP; - } -#endif -} - -void -tty_binaryout(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.lflags |= LLITOUT; - else - termbuf.lflags &= ~LLITOUT; -#else - if (on) { - termbuf.c_cflag &= ~(CSIZE|PARENB); - termbuf.c_cflag |= CS8; - termbuf.c_oflag &= ~OPOST; - } else { - termbuf.c_cflag &= ~CSIZE; - termbuf.c_cflag |= CS7|PARENB; - termbuf.c_oflag |= OPOST; - } -#endif -} - -int -tty_isbinaryin(void) -{ -#ifndef USE_TERMIO - return(termbuf.lflags & LPASS8); -#else - return(!(termbuf.c_iflag & ISTRIP)); -#endif -} - -int -tty_isbinaryout(void) -{ -#ifndef USE_TERMIO - return(termbuf.lflags & LLITOUT); -#else - return(!(termbuf.c_oflag&OPOST)); -#endif -} - -#ifdef LINEMODE -int -tty_isediting(void) -{ -#ifndef USE_TERMIO - return(!(termbuf.sg.sg_flags & (CBREAK|RAW))); -#else - return(termbuf.c_lflag & ICANON); -#endif -} - -int -tty_istrapsig(void) -{ -#ifndef USE_TERMIO - return(!(termbuf.sg.sg_flags&RAW)); -#else - return(termbuf.c_lflag & ISIG); -#endif -} - -void -tty_setedit(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags &= ~CBREAK; - else - termbuf.sg.sg_flags |= CBREAK; -#else - if (on) - termbuf.c_lflag |= ICANON; - else - termbuf.c_lflag &= ~ICANON; -#endif -} - -void -tty_setsig(int on) -{ -#ifndef USE_TERMIO - if (on) - ; -#else - if (on) - termbuf.c_lflag |= ISIG; - else - termbuf.c_lflag &= ~ISIG; -#endif -} -#endif /* LINEMODE */ - -int -tty_issofttab(void) -{ -#ifndef USE_TERMIO - return (termbuf.sg.sg_flags & XTABS); -#else -# ifdef OXTABS - return (termbuf.c_oflag & OXTABS); -# endif -# ifdef TABDLY - return ((termbuf.c_oflag & TABDLY) == TAB3); -# endif -#endif -} - -void -tty_setsofttab(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags |= XTABS; - else - termbuf.sg.sg_flags &= ~XTABS; -#else - if (on) { -# ifdef OXTABS - termbuf.c_oflag |= OXTABS; -# endif -# ifdef TABDLY - termbuf.c_oflag &= ~TABDLY; - termbuf.c_oflag |= TAB3; -# endif - } else { -# ifdef OXTABS - termbuf.c_oflag &= ~OXTABS; -# endif -# ifdef TABDLY - termbuf.c_oflag &= ~TABDLY; - termbuf.c_oflag |= TAB0; -# endif - } -#endif -} - -int -tty_islitecho(void) -{ -#ifndef USE_TERMIO - return (!(termbuf.lflags & LCTLECH)); -#else -# ifdef ECHOCTL - return (!(termbuf.c_lflag & ECHOCTL)); -# endif -# ifdef TCTLECH - return (!(termbuf.c_lflag & TCTLECH)); -# endif -# if !defined(ECHOCTL) && !defined(TCTLECH) - return (0); /* assumes ctl chars are echoed '^x' */ -# endif -#endif -} - -void -tty_setlitecho(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.lflags &= ~LCTLECH; - else - termbuf.lflags |= LCTLECH; -#else -# ifdef ECHOCTL - if (on) - termbuf.c_lflag &= ~ECHOCTL; - else - termbuf.c_lflag |= ECHOCTL; -# endif -# ifdef TCTLECH - if (on) - termbuf.c_lflag &= ~TCTLECH; - else - termbuf.c_lflag |= TCTLECH; -# endif -#endif -} - -int -tty_iscrnl(void) -{ -#ifndef USE_TERMIO - return (termbuf.sg.sg_flags & CRMOD); -#else - return (termbuf.c_iflag & ICRNL); -#endif -} - -/* - * Try to guess whether speeds are "encoded" (4.2BSD) or just numeric (4.4BSD). - */ -#if B4800 != 4800 -#define DECODE_BAUD -#endif - -#ifdef DECODE_BAUD - -/* - * A table of available terminal speeds - */ -struct termspeeds { - int speed; - int value; -} termspeeds[] = { - { 0, B0 }, { 50, B50 }, { 75, B75 }, - { 110, B110 }, { 134, B134 }, { 150, B150 }, - { 200, B200 }, { 300, B300 }, { 600, B600 }, - { 1200, B1200 }, { 1800, B1800 }, { 2400, B2400 }, - { 4800, B4800 }, -#ifdef B7200 - { 7200, B7200 }, -#endif - { 9600, B9600 }, -#ifdef B14400 - { 14400, B14400 }, -#endif -#ifdef B19200 - { 19200, B19200 }, -#endif -#ifdef B28800 - { 28800, B28800 }, -#endif -#ifdef B38400 - { 38400, B38400 }, -#endif -#ifdef B57600 - { 57600, B57600 }, -#endif -#ifdef B115200 - { 115200, B115200 }, -#endif -#ifdef B230400 - { 230400, B230400 }, -#endif - { -1, 0 } -}; -#endif /* DECODE_BAUD */ - -void -tty_tspeed(int val) -{ -#ifdef DECODE_BAUD - struct termspeeds *tp; - - for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++) - ; - if (tp->speed == -1) /* back up to last valid value */ - --tp; - cfsetospeed(&termbuf, tp->value); -#else /* DECODE_BAUD */ - cfsetospeed(&termbuf, val); -#endif /* DECODE_BAUD */ -} - -void -tty_rspeed(int val) -{ -#ifdef DECODE_BAUD - struct termspeeds *tp; - - for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++) - ; - if (tp->speed == -1) /* back up to last valid value */ - --tp; - cfsetispeed(&termbuf, tp->value); -#else /* DECODE_BAUD */ - cfsetispeed(&termbuf, val); -#endif /* DECODE_BAUD */ -} - -/* - * getptyslave() - * - * Open the slave side of the pty, and do any initialization - * that is necessary. - */ -static void -getptyslave(void) -{ - int t = -1; - char erase; - -# ifdef LINEMODE - int waslm; -# endif -# ifdef TIOCGWINSZ - struct winsize ws; - extern int def_row, def_col; -# endif - extern int def_tspeed, def_rspeed; - /* - * Opening the slave side may cause initilization of the - * kernel tty structure. We need remember the state of - * if linemode was turned on - * terminal window size - * terminal speed - * erase character - * so that we can re-set them if we need to. - */ -# ifdef LINEMODE - waslm = tty_linemode(); -# endif - erase = termbuf.c_cc[VERASE]; - - /* - * Make sure that we don't have a controlling tty, and - * that we are the session (process group) leader. - */ -# ifdef TIOCNOTTY - t = open(_PATH_TTY, O_RDWR); - if (t >= 0) { - (void) ioctl(t, TIOCNOTTY, (char *)0); - (void) close(t); - } -# endif - - t = cleanopen(line); - if (t < 0) - fatalperror(net, line); - - - /* - * set up the tty modes as we like them to be. - */ - init_termbuf(); -# ifdef TIOCGWINSZ - if (def_row || def_col) { - memset((char *)&ws, 0, sizeof(ws)); - ws.ws_col = def_col; - ws.ws_row = def_row; - (void)ioctl(t, TIOCSWINSZ, (char *)&ws); - } -# endif - - /* - * Settings for sgtty based systems - */ -# ifndef USE_TERMIO - termbuf.sg.sg_flags |= CRMOD|ANYP|ECHO|XTABS; -# endif /* USE_TERMIO */ - - /* - * Settings for all other termios/termio based - * systems, other than 4.4BSD. In 4.4BSD the - * kernel does the initial terminal setup. - */ - tty_rspeed((def_rspeed > 0) ? def_rspeed : 9600); - tty_tspeed((def_tspeed > 0) ? def_tspeed : 9600); - if (erase) - termbuf.c_cc[VERASE] = erase; -# ifdef LINEMODE - if (waslm) - tty_setlinemode(1); -# endif /* LINEMODE */ - - /* - * Set the tty modes, and make this our controlling tty. - */ - set_termbuf(); - if (login_tty(t) == -1) - fatalperror(net, "login_tty"); - if (net > 2) - (void) close(net); -#ifdef AUTHENTICATION -#if defined(NO_LOGIN_F) && defined(LOGIN_R) - /* - * Leave the pty open so that we can write out the rlogin - * protocol for /bin/login, if the authentication works. - */ -#else - if (pty > 2) { - (void) close(pty); - pty = -1; - } -#endif -#endif /* AUTHENTICATION */ -} - -#ifndef O_NOCTTY -#define O_NOCTTY 0 -#endif -/* - * Open the specified slave side of the pty, - * making sure that we have a clean tty. - */ -int -cleanopen(char *li) -{ - int t; - - /* - * Make sure that other people can't open the - * slave side of the connection. - */ - (void) chown(li, 0, 0); - (void) chmod(li, 0600); - - (void) revoke(li); - - t = open(line, O_RDWR|O_NOCTTY); - - if (t < 0) - return(-1); - - return(t); -} - -/* - * startslave(host) - * - * Given a hostname, do whatever - * is necessary to startup the login process on the slave side of the pty. - */ - -/* ARGSUSED */ -void -startslave(char *host, int autologin, char *autoname) -{ - int i; - -#ifdef AUTHENTICATION - if (!autoname || !autoname[0]) - autologin = 0; - - if (autologin < auth_level) { - fatal(net, "Authorization failed"); - exit(1); - } -#endif - - - if ((i = fork()) < 0) - fatalperror(net, "fork"); - if (i) { - } else { - getptyslave(); - start_login(host, autologin, autoname); - /*NOTREACHED*/ - } -} - -void -init_env(void) -{ - char **envp; - - envp = envinit; - if ((*envp = getenv("TZ"))) - *envp++ -= 3; - *envp = 0; - environ = envinit; -} - - -/* - * start_login(host) - * - * Assuming that we are now running as a child processes, this - * function will turn us into the login process. - */ - -#ifndef AUTHENTICATION -#define undef1 __unused -#else -#define undef1 -#endif - -void -start_login(char *host undef1, int autologin undef1, char *name undef1) -{ - char **argv; - - scrub_env(); - - /* - * -h : pass on name of host. - * WARNING: -h is accepted by login if and only if - * getuid() == 0. - * -p : don't clobber the environment (so terminal type stays set). - * - * -f : force this login, he has already been authenticated - */ - argv = addarg(0, "login"); - -#if !defined(NO_LOGIN_H) -#ifdef AUTHENTICATION -# if defined(NO_LOGIN_F) && defined(LOGIN_R) - /* - * Don't add the "-h host" option if we are going - * to be adding the "-r host" option down below... - */ - if ((auth_level < 0) || (autologin != AUTH_VALID)) -# endif - { - argv = addarg(argv, "-h"); - argv = addarg(argv, host); - } -#endif /* AUTHENTICATION */ -#endif -#if !defined(NO_LOGIN_P) - argv = addarg(argv, "-p"); -#endif -#ifdef LINEMODE - /* - * Set the environment variable "LINEMODE" to either - * "real" or "kludge" if we are operating in either - * real or kludge linemode. - */ - if (lmodetype == REAL_LINEMODE) - setenv("LINEMODE", "real", 1); -# ifdef KLUDGELINEMODE - else if (lmodetype == KLUDGE_LINEMODE || lmodetype == KLUDGE_OK) - setenv("LINEMODE", "kludge", 1); -# endif -#endif -#ifdef BFTPDAEMON - /* - * Are we working as the bftp daemon? If so, then ask login - * to start bftp instead of shell. - */ - if (bftpd) { - argv = addarg(argv, "-e"); - argv = addarg(argv, BFTPPATH); - } else -#endif -#ifdef AUTHENTICATION - if (auth_level >= 0 && autologin == AUTH_VALID) { -# if !defined(NO_LOGIN_F) - argv = addarg(argv, "-f"); - argv = addarg(argv, "--"); - argv = addarg(argv, name); -# else -# if defined(LOGIN_R) - /* - * We don't have support for "login -f", but we - * can fool /bin/login into thinking that we are - * rlogind, and allow us to log in without a - * password. The rlogin protocol expects - * local-user\0remote-user\0term/speed\0 - */ - - if (pty > 2) { - char *cp; - char speed[128]; - int isecho, israw, xpty, len; - extern int def_rspeed; -# ifndef LOGIN_HOST - /* - * Tell login that we are coming from "localhost". - * If we passed in the real host name, then the - * user would have to allow .rhost access from - * every machine that they want authenticated - * access to work from, which sort of defeats - * the purpose of an authenticated login... - * So, we tell login that the session is coming - * from "localhost", and the user will only have - * to have "localhost" in their .rhost file. - */ -# define LOGIN_HOST "localhost" -# endif - argv = addarg(argv, "-r"); - argv = addarg(argv, LOGIN_HOST); - - xpty = pty; - pty = 0; - init_termbuf(); - isecho = tty_isecho(); - israw = tty_israw(); - if (isecho || !israw) { - tty_setecho(0); /* Turn off echo */ - tty_setraw(1); /* Turn on raw */ - set_termbuf(); - } - len = strlen(name)+1; - write(xpty, name, len); - write(xpty, name, len); - snprintf(speed, sizeof(speed), - "%s/%d", (cp = getenv("TERM")) ? cp : "", - (def_rspeed > 0) ? def_rspeed : 9600); - len = strlen(speed)+1; - write(xpty, speed, len); - - if (isecho || !israw) { - init_termbuf(); - tty_setecho(isecho); - tty_setraw(israw); - set_termbuf(); - if (!israw) { - /* - * Write a newline to ensure - * that login will be able to - * read the line... - */ - write(xpty, "\n", 1); - } - } - pty = xpty; - } -# else - argv = addarg(argv, "--"); - argv = addarg(argv, name); -# endif -# endif - } else -#endif - if (getenv("USER")) { - argv = addarg(argv, "--"); - argv = addarg(argv, getenv("USER")); -#if defined(LOGIN_ARGS) && defined(NO_LOGIN_P) - { - char **cpp; - for (cpp = environ; *cpp; cpp++) - argv = addarg(argv, *cpp); - } -#endif - /* - * Assume that login will set the USER variable - * correctly. For SysV systems, this means that - * USER will no longer be set, just LOGNAME by - * login. (The problem is that if the auto-login - * fails, and the user then specifies a different - * account name, he can get logged in with both - * LOGNAME and USER in his environment, but the - * USER value will be wrong. - */ - unsetenv("USER"); - } -#ifdef AUTHENTICATION -#if defined(NO_LOGIN_F) && defined(LOGIN_R) - if (pty > 2) - close(pty); -#endif -#endif /* AUTHENTICATION */ - closelog(); - - if (altlogin == NULL) { - altlogin = _PATH_LOGIN; - } - execv(altlogin, argv); - - syslog(LOG_ERR, "%s: %m", altlogin); - fatalperror(net, altlogin); - /*NOTREACHED*/ -} - -static char ** -addarg(char **argv, const char *val) -{ - char **cpp; - - if (argv == NULL) { - /* - * 10 entries, a leading length, and a null - */ - argv = (char **)malloc(sizeof(*argv) * 12); - if (argv == NULL) - return(NULL); - *argv++ = (char *)10; - *argv = (char *)0; - } - for (cpp = argv; *cpp; cpp++) - ; - if (cpp == &argv[(long)argv[-1]]) { - --argv; - *argv = (char *)((long)(*argv) + 10); - argv = (char **)realloc(argv, sizeof(*argv)*((long)(*argv) + 2)); - if (argv == NULL) - return(NULL); - argv++; - cpp = &argv[(long)argv[-1] - 10]; - } - *cpp++ = strdup(val); - *cpp = 0; - return(argv); -} - -/* - * scrub_env() - * - * We only accept the environment variables listed below. - */ -void -scrub_env(void) -{ - static const char *rej[] = { - "TERMCAP=/", - NULL - }; - - static const char *acc[] = { - "XAUTH=", "XAUTHORITY=", "DISPLAY=", - "TERM=", - "EDITOR=", - "PAGER=", - "LOGNAME=", - "POSIXLY_CORRECT=", - "PRINTER=", - NULL - }; - - char **cpp, **cpp2; - const char **p; - - for (cpp2 = cpp = environ; *cpp; cpp++) { - int reject_it = 0; - - for(p = rej; *p; p++) - if(strncmp(*cpp, *p, strlen(*p)) == 0) { - reject_it = 1; - break; - } - if (reject_it) - continue; - - for(p = acc; *p; p++) - if(strncmp(*cpp, *p, strlen(*p)) == 0) - break; - if(*p != NULL) - *cpp2++ = *cpp; - } - *cpp2 = NULL; -} - -/* - * cleanup() - * - * This is the routine to call when we are all through, to - * clean up anything that needs to be cleaned up. - */ -/* ARGSUSED */ -void -cleanup(int sig __unused) -{ - char *p; - sigset_t mask; - - p = line + sizeof(_PATH_DEV) - 1; - /* - * Block all signals before clearing the utmp entry. We don't want to - * be called again after calling logout() and then not add the wtmp - * entry because of not finding the corresponding entry in utmp. - */ - sigfillset(&mask); - sigprocmask(SIG_SETMASK, &mask, NULL); - if (logout(p)) - logwtmp(p, "", ""); - (void)chmod(line, 0666); - (void)chown(line, 0, 0); - *p = 'p'; - (void)chmod(line, 0666); - (void)chown(line, 0, 0); - (void) shutdown(net, 2); - _exit(1); -} diff --git a/crypto/telnet/telnetd/telnetd.8 b/crypto/telnet/telnetd/telnetd.8 deleted file mode 100644 index b11fbac..0000000 --- a/crypto/telnet/telnetd/telnetd.8 +++ /dev/null @@ -1,587 +0,0 @@ -.\" Copyright (c) 1983, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)telnetd.8 8.4 (Berkeley) 6/1/94 -.\" $FreeBSD$ -.\" -.Dd January 27, 2000 -.Dt TELNETD 8 -.Os -.Sh NAME -.Nm telnetd -.Nd DARPA -.Tn TELNET -protocol server -.Sh SYNOPSIS -.Nm /usr/libexec/telnetd -.Op Fl BUhlkn -.Op Fl D Ar debugmode -.Op Fl S Ar tos -.Op Fl X Ar authtype -.Op Fl a Ar authmode -.Op Fl edebug -.Op Fl p Ar loginprog -.Op Fl u Ar len -.Op Fl debug Op Ar port -.Sh DESCRIPTION -The -.Nm -command is a server which supports the -.Tn DARPA -standard -.Tn TELNET -virtual terminal protocol. -.Nm Telnetd -is normally invoked by the internet server (see -.Xr inetd 8 ) -for requests to connect to the -.Tn TELNET -port as indicated by the -.Pa /etc/services -file (see -.Xr services 5 ) . -The -.Fl debug -option may be used to start up -.Nm -manually, instead of through -.Xr inetd 8 . -If started up this way, -.Ar port -may be specified to run -.Nm -on an alternate -.Tn TCP -port number. -.Pp -The -.Nm -command accepts the following options: -.Bl -tag -width indent -.It Fl a Ar authmode -This option may be used for specifying what mode should -be used for authentication. -Note that this option is only useful if -.Nm -has been compiled with support for the -.Dv AUTHENTICATION -option. -There are several valid values for -.Ar authmode : -.Bl -tag -width debug -.It Cm debug -Turn on authentication debugging code. -.It Cm user -Only allow connections when the remote user -can provide valid authentication information -to identify the remote user, -and is allowed access to the specified account -without providing a password. -.It Cm valid -Only allow connections when the remote user -can provide valid authentication information -to identify the remote user. -The -.Xr login 1 -command will provide any additional user verification -needed if the remote user is not allowed automatic -access to the specified account. -.It Cm other -Only allow connections that supply some authentication information. -This option is currently not supported -by any of the existing authentication mechanisms, -and is thus the same as specifying -.Fl a -.Cm valid . -.It Cm none -This is the default state. -Authentication information is not required. -If no or insufficient authentication information -is provided, then the -.Xr login 1 -program will provide the necessary user -verification. -.It Cm off -Disable the authentication code. -All user verification will happen through the -.Xr login 1 -program. -.El -.It Fl B -Specify bftp server mode. In this mode, -.Nm -causes login to start a -.Xr bftp 1 -session rather than the user's -normal shell. In bftp daemon mode normal -logins are not supported, and it must be used -on a port other than the normal -.Tn TELNET -port. -.It Fl D Ar debugmode -This option may be used for debugging purposes. -This allows -.Nm -to print out debugging information -to the connection, allowing the user to see what -.Nm -is doing. -There are several possible values for -.Ar debugmode : -.Bl -tag -width exercise -.It Cm options -Print information about the negotiation of -.Tn TELNET -options. -.It Cm report -Print the -.Cm options -information, plus some additional information -about what processing is going on. -.It Cm netdata -Display the data stream received by -.Nm . -.It Cm ptydata -Display data written to the pty. -.It Cm exercise -Has not been implemented yet. -.El -.It Fl debug -Enable debugging on each socket created by -.Nm -(see -.Dv SO_DEBUG -in -.Xr socket 2 ) . -.It Fl edebug -If -.Nm -has been compiled with support for data encryption, then the -.Fl edebug -option may be used to enable encryption debugging code. -.It Fl h -Disable the printing of host-specific information before -login has been completed. -.It Fl k -This option is only useful if -.Nm -has been compiled with both linemode and kludge linemode -support. If the -.Fl k -option is specified, then if the remote client does not -support the -.Dv LINEMODE -option, then -.Nm -will operate in character at a time mode. -It will still support kludge linemode, but will only -go into kludge linemode if the remote client requests -it. -(This is done by the client sending -.Dv DONT SUPPRESS-GO-AHEAD -and -.Dv DONT ECHO . ) -The -.Fl k -option is most useful when there are remote clients -that do not support kludge linemode, but pass the heuristic -(if they respond with -.Dv WILL TIMING-MARK -in response to a -.Dv DO TIMING-MARK ) -for kludge linemode support. -.It Fl l -Specify line mode. Try to force clients to use line- -at-a-time mode. -If the -.Dv LINEMODE -option is not supported, it will go -into kludge linemode. -.It Fl n -Disable -.Dv TCP -keep-alives. Normally -.Nm -enables the -.Tn TCP -keep-alive mechanism to probe connections that -have been idle for some period of time to determine -if the client is still there, so that idle connections -from machines that have crashed or can no longer -be reached may be cleaned up. -.It Fl p Ar loginprog -Specify an alternate -.Xr login 1 -command to run to complete the login. The alternate command must -understand the same command arguments as the standard login. -.It Fl S Ar tos -.It Fl u Ar len -This option is used to specify the size of the field -in the -.Dv utmp -structure that holds the remote host name. -If the resolved host name is longer than -.Ar len , -the dotted decimal value will be used instead. -This allows hosts with very long host names that -overflow this field to still be uniquely identified. -Specifying -.Fl u0 -indicates that only dotted decimal addresses -should be put into the -.Pa utmp -file. -.It Fl U -This option causes -.Nm -to refuse connections from addresses that -cannot be mapped back into a symbolic name -via the -.Xr gethostbyaddr 3 -routine. -.It Fl X Ar authtype -This option is only valid if -.Nm -has been built with support for the authentication option. -It disables the use of -.Ar authtype -authentication, and -can be used to temporarily disable -a specific authentication type without having to recompile -.Nm . -.El -.Pp -.Nm Telnetd -operates by allocating a pseudo-terminal device (see -.Xr pty 4 ) -for a client, then creating a login process which has -the slave side of the pseudo-terminal as -.Dv stdin , -.Dv stdout -and -.Dv stderr . -.Nm Telnetd -manipulates the master side of the pseudo-terminal, -implementing the -.Tn TELNET -protocol and passing characters -between the remote client and the login process. -.Pp -When a -.Tn TELNET -session is started up, -.Nm -sends -.Tn TELNET -options to the client side indicating -a willingness to do the -following -.Tn TELNET -options, which are described in more detail below: -.Bd -literal -offset indent -DO AUTHENTICATION -WILL ENCRYPT -DO TERMINAL TYPE -DO TSPEED -DO XDISPLOC -DO NEW-ENVIRON -DO ENVIRON -WILL SUPPRESS GO AHEAD -DO ECHO -DO LINEMODE -DO NAWS -WILL STATUS -DO LFLOW -DO TIMING-MARK -.Ed -.Pp -The pseudo-terminal allocated to the client is configured -to operate in -.Dq cooked -mode, and with -.Dv XTABS and -.Dv CRMOD -enabled (see -.Xr tty 4 ) . -.Pp -.Nm Telnetd -has support for enabling locally the following -.Tn TELNET -options: -.Bl -tag -width "DO AUTHENTICATION" -.It "WILL ECHO" -When the -.Dv LINEMODE -option is enabled, a -.Dv WILL ECHO -or -.Dv WONT ECHO -will be sent to the client to indicate the -current state of terminal echoing. -When terminal echo is not desired, a -.Dv WILL ECHO -is sent to indicate that -.Nm -will take care of echoing any data that needs to be -echoed to the terminal, and then nothing is echoed. -When terminal echo is desired, a -.Dv WONT ECHO -is sent to indicate that -.Nm -will not be doing any terminal echoing, so the -client should do any terminal echoing that is needed. -.It "WILL BINARY" -Indicate that the client is willing to send a -8 bits of data, rather than the normal 7 bits -of the Network Virtual Terminal. -.It "WILL SGA" -Indicate that it will not be sending -.Dv IAC GA , -go ahead, commands. -.It "WILL STATUS" -Indicate a willingness to send the client, upon -request, of the current status of all -.Tn TELNET -options. -.It "WILL TIMING-MARK" -Whenever a -.Dv DO TIMING-MARK -command is received, it is always responded -to with a -.Dv WILL TIMING-MARK . -.It "WILL LOGOUT" -When a -.Dv DO LOGOUT -is received, a -.Dv WILL LOGOUT -is sent in response, and the -.Tn TELNET -session is shut down. -.It "WILL ENCRYPT" -Only sent if -.Nm -is compiled with support for data encryption, and -indicates a willingness to decrypt -the data stream. -.El -.Pp -.Nm Telnetd -has support for enabling remotely the following -.Tn TELNET -options: -.Bl -tag -width "DO AUTHENTICATION" -.It "DO BINARY" -Sent to indicate that -.Nm -is willing to receive an 8 bit data stream. -.It "DO LFLOW" -Requests that the client handle flow control -characters remotely. -.It "DO ECHO" -This is not really supported, but is sent to identify a -.Bx 4.2 -.Xr telnet 1 -client, which will improperly respond with -.Dv WILL ECHO . -If a -.Dv WILL ECHO -is received, a -.Dv DONT ECHO -will be sent in response. -.It "DO TERMINAL-TYPE" -Indicate a desire to be able to request the -name of the type of terminal that is attached -to the client side of the connection. -.It "DO SGA" -Indicate that it does not need to receive -.Dv IAC GA , -the go ahead command. -.It "DO NAWS" -Requests that the client inform the server when -the window (display) size changes. -.It "DO TERMINAL-SPEED" -Indicate a desire to be able to request information -about the speed of the serial line to which -the client is attached. -.It "DO XDISPLOC" -Indicate a desire to be able to request the name -of the X Window System display that is associated with -the telnet client. -.It "DO NEW-ENVIRON" -Indicate a desire to be able to request environment -variable information, as described in RFC 1572. -.It "DO ENVIRON" -Indicate a desire to be able to request environment -variable information, as described in RFC 1408. -.It "DO LINEMODE" -Only sent if -.Nm -is compiled with support for linemode, and -requests that the client do line by line processing. -.It "DO TIMING-MARK" -Only sent if -.Nm -is compiled with support for both linemode and -kludge linemode, and the client responded with -.Dv WONT LINEMODE . -If the client responds with -.Dv WILL TM , -the it is assumed that the client supports -kludge linemode. -Note that the -.Op Fl k -option can be used to disable this. -.It "DO AUTHENTICATION" -Only sent if -.Nm -is compiled with support for authentication, and -indicates a willingness to receive authentication -information for automatic login. -.It "DO ENCRYPT" -Only sent if -.Nm -is compiled with support for data encryption, and -indicates a willingness to decrypt -the data stream. -.El -.Sh NOTES -By default -.Nm -will read the -.Em \&he , -.Em \&hn , -and -.Em \&im -capabilities from -.Pa /etc/gettytab -and use that information (if present) to determine -what to display before the login: prompt. You can -also use a System V style -.Pa /etc/issue -file by using the -.Em \&if -capability, which will override -.Em \&im . -The information specified in either -.Em \&im -or -.Em \&if -will be displayed to both console and remote logins. -.\" .Sh ENVIRONMENT -.Sh FILES -.Bl -tag -width /usr/ucb/bftp -compact -.It Pa /etc/services -.It Pa /etc/gettytab -.It Pa /etc/iptos -(if supported) -.It Pa /usr/ucb/bftp -(if supported) -.El -.Sh "SEE ALSO" -.Xr bftp 1 , -.Xr login 1 , -.Xr gettytab 5 , -.Xr telnet 1 -(if supported) -.Sh STANDARDS -.Bl -tag -compact -width RFC-1572 -.It Cm RFC-854 -.Tn TELNET -PROTOCOL SPECIFICATION -.It Cm RFC-855 -TELNET OPTION SPECIFICATIONS -.It Cm RFC-856 -TELNET BINARY TRANSMISSION -.It Cm RFC-857 -TELNET ECHO OPTION -.It Cm RFC-858 -TELNET SUPPRESS GO AHEAD OPTION -.It Cm RFC-859 -TELNET STATUS OPTION -.It Cm RFC-860 -TELNET TIMING MARK OPTION -.It Cm RFC-861 -TELNET EXTENDED OPTIONS - LIST OPTION -.It Cm RFC-885 -TELNET END OF RECORD OPTION -.It Cm RFC-1073 -Telnet Window Size Option -.It Cm RFC-1079 -Telnet Terminal Speed Option -.It Cm RFC-1091 -Telnet Terminal-Type Option -.It Cm RFC-1096 -Telnet X Display Location Option -.It Cm RFC-1123 -Requirements for Internet Hosts -- Application and Support -.It Cm RFC-1184 -Telnet Linemode Option -.It Cm RFC-1372 -Telnet Remote Flow Control Option -.It Cm RFC-1416 -Telnet Authentication Option -.It Cm RFC-1411 -Telnet Authentication: Kerberos Version 4 -.It Cm RFC-1412 -Telnet Authentication: SPX -.It Cm RFC-1571 -Telnet Environment Option Interoperability Issues -.It Cm RFC-1572 -Telnet Environment Option -.El -.Sh BUGS -Some -.Tn TELNET -commands are only partially implemented. -.Pp -Because of bugs in the original -.Bx 4.2 -.Xr telnet 1 , -.Nm -performs some dubious protocol exchanges to try to discover if the remote -client is, in fact, a -.Bx 4.2 -.Xr telnet 1 . -.Pp -Binary mode -has no common interpretation except between similar operating systems -(Unix in this case). -.Pp -The terminal type name received from the remote client is converted to -lower case. -.Pp -.Nm Telnetd -never sends -.Tn TELNET -.Dv IAC GA -(go ahead) commands. -.Sh HISTORY -IPv6 support was added by WIDE/KAME project. diff --git a/crypto/telnet/telnetd/telnetd.c b/crypto/telnet/telnetd/telnetd.c deleted file mode 100644 index bdb76d7..0000000 --- a/crypto/telnet/telnetd/telnetd.c +++ /dev/null @@ -1,1226 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)telnetd.c 8.4 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "telnetd.h" -#include "pathnames.h" - -#include <sys/mman.h> -#include <err.h> -#include <libutil.h> -#include <paths.h> -#include <termcap.h> -#include <utmp.h> - -#include <arpa/inet.h> - -#ifdef AUTHENTICATION -#include <libtelnet/auth.h> -int auth_level = 0; -#endif -#ifdef ENCRYPTION -#include <libtelnet/encrypt.h> -#endif -#include <libtelnet/misc.h> - -char remote_hostname[MAXHOSTNAMELEN]; -size_t utmp_len = sizeof(remote_hostname) - 1; -int registerd_host_only = 0; - - -/* - * I/O data buffers, - * pointers, and counters. - */ -char ptyibuf[BUFSIZ], *ptyip = ptyibuf; -char ptyibuf2[BUFSIZ]; - -int readstream(int, char *, int); -void doit(struct sockaddr *); -int terminaltypeok(char *); - -int hostinfo = 1; /* do we print login banner? */ - -static int debug = 0; -int keepalive = 1; -const char *altlogin; - -void doit(struct sockaddr *); -int terminaltypeok(char *); -void startslave(char *, int, char *); -extern void usage(void); -static void _gettermname(void); - -/* - * The string to pass to getopt(). We do it this way so - * that only the actual options that we support will be - * passed off to getopt(). - */ -char valid_opts[] = { - 'd', ':', 'h', 'k', 'n', 'p', ':', 'S', ':', 'u', ':', 'U', - '4', '6', -#ifdef AUTHENTICATION - 'a', ':', 'X', ':', -#endif -#ifdef BFTPDAEMON - 'B', -#endif -#ifdef DIAGNOSTICS - 'D', ':', -#endif -#ifdef ENCRYPTION - 'e', ':', -#endif -#ifdef LINEMODE - 'l', -#endif - '\0' -}; - -int family = AF_INET; - -#ifndef MAXHOSTNAMELEN -#define MAXHOSTNAMELEN 256 -#endif /* MAXHOSTNAMELEN */ - -char *hostname; -char host_name[MAXHOSTNAMELEN]; - -extern void telnet(int, int, char *); - -int level; -char user_name[256]; - -int -main(int argc, char *argv[]) -{ - struct sockaddr_storage from; - int on = 1, fromlen; - int ch; -#if defined(IPPROTO_IP) && defined(IP_TOS) - int tos = -1; -#endif - - pfrontp = pbackp = ptyobuf; - netip = netibuf; - nfrontp = nbackp = netobuf; -#ifdef ENCRYPTION - nclearto = 0; -#endif /* ENCRYPTION */ - - /* - * This initialization causes linemode to default to a configuration - * that works on all telnet clients, including the FreeBSD client. - * This is not quite the same as the telnet client issuing a "mode - * character" command, but has most of the same benefits, and is - * preferable since some clients (like usofts) don't have the - * mode character command anyway and linemode breaks things. - * The most notable symptom of fix is that csh "set filec" operations - * like <ESC> (filename completion) and ^D (choices) keys now work - * in telnet sessions and can be used more than once on the same line. - * CR/LF handling is also corrected in some termio modes. This - * change resolves problem reports bin/771 and bin/1037. - */ - - linemode=1; /*Default to mode that works on bulk of clients*/ - - while ((ch = getopt(argc, argv, valid_opts)) != -1) { - switch(ch) { - -#ifdef AUTHENTICATION - case 'a': - /* - * Check for required authentication level - */ - if (strcmp(optarg, "debug") == 0) { - extern int auth_debug_mode; - auth_debug_mode = 1; - } else if (strcasecmp(optarg, "none") == 0) { - auth_level = 0; - } else if (strcasecmp(optarg, "other") == 0) { - auth_level = AUTH_OTHER; - } else if (strcasecmp(optarg, "user") == 0) { - auth_level = AUTH_USER; - } else if (strcasecmp(optarg, "valid") == 0) { - auth_level = AUTH_VALID; - } else if (strcasecmp(optarg, "off") == 0) { - /* - * This hack turns off authentication - */ - auth_level = -1; - } else { - warnx("unknown authorization level for -a"); - } - break; -#endif /* AUTHENTICATION */ - -#ifdef BFTPDAEMON - case 'B': - bftpd++; - break; -#endif /* BFTPDAEMON */ - - case 'd': - if (strcmp(optarg, "ebug") == 0) { - debug++; - break; - } - usage(); - /* NOTREACHED */ - break; - -#ifdef DIAGNOSTICS - case 'D': - /* - * Check for desired diagnostics capabilities. - */ - if (!strcmp(optarg, "report")) { - diagnostic |= TD_REPORT|TD_OPTIONS; - } else if (!strcmp(optarg, "exercise")) { - diagnostic |= TD_EXERCISE; - } else if (!strcmp(optarg, "netdata")) { - diagnostic |= TD_NETDATA; - } else if (!strcmp(optarg, "ptydata")) { - diagnostic |= TD_PTYDATA; - } else if (!strcmp(optarg, "options")) { - diagnostic |= TD_OPTIONS; - } else { - usage(); - /* NOT REACHED */ - } - break; -#endif /* DIAGNOSTICS */ - -#ifdef ENCRYPTION - case 'e': - if (strcmp(optarg, "debug") == 0) { - extern int encrypt_debug_mode; - encrypt_debug_mode = 1; - break; - } - usage(); - /* NOTREACHED */ - break; -#endif /* ENCRYPTION */ - - case 'h': - hostinfo = 0; - break; - -#ifdef LINEMODE - case 'l': - alwayslinemode = 1; - break; -#endif /* LINEMODE */ - - case 'k': -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - lmodetype = NO_AUTOKLUDGE; -#else - /* ignore -k option if built without kludge linemode */ -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - break; - - case 'n': - keepalive = 0; - break; - - case 'p': - altlogin = optarg; - break; - - case 'S': -#ifdef HAS_GETTOS - if ((tos = parsetos(optarg, "tcp")) < 0) - warnx("%s%s%s", - "bad TOS argument '", optarg, - "'; will try to use default TOS"); -#else - warnx("TOS option unavailable; -S flag not supported"); -#endif - break; - - case 'u': - utmp_len = (size_t)atoi(optarg); - if (utmp_len >= sizeof(remote_hostname)) - utmp_len = sizeof(remote_hostname) - 1; - break; - - case 'U': - registerd_host_only = 1; - break; - -#ifdef AUTHENTICATION - case 'X': - /* - * Check for invalid authentication types - */ - auth_disable_name(optarg); - break; -#endif /* AUTHENTICATION */ - - case '4': - family = AF_INET; - break; - -#ifdef INET6 - case '6': - family = AF_INET6; - break; -#endif - - default: - warnx("%c: unknown option", ch); - /* FALLTHROUGH */ - case '?': - usage(); - /* NOTREACHED */ - } - } - - argc -= optind; - argv += optind; - - if (debug) { - int s, ns, foo, error; - const char *service = "telnet"; - struct addrinfo hints, *res; - - if (argc > 1) { - usage(); - /* NOT REACHED */ - } else if (argc == 1) - service = *argv; - - memset(&hints, 0, sizeof(hints)); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = family; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = 0; - error = getaddrinfo(NULL, service, &hints, &res); - - if (error) { - errx(1, "tcp/%s: %s\n", service, gai_strerror(error)); - if (error == EAI_SYSTEM) - errx(1, "tcp/%s: %s\n", service, strerror(errno)); - usage(); - } - - s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); - if (s < 0) - err(1, "socket"); - (void) setsockopt(s, SOL_SOCKET, SO_REUSEADDR, - (char *)&on, sizeof(on)); - if (bind(s, res->ai_addr, res->ai_addrlen) < 0) - err(1, "bind"); - if (listen(s, 1) < 0) - err(1, "listen"); - foo = res->ai_addrlen; - ns = accept(s, res->ai_addr, &foo); - if (ns < 0) - err(1, "accept"); - (void) dup2(ns, 0); - (void) close(ns); - (void) close(s); -#ifdef convex - } else if (argc == 1) { - ; /* VOID*/ /* Just ignore the host/port name */ -#endif - } else if (argc > 0) { - usage(); - /* NOT REACHED */ - } - - openlog("telnetd", LOG_PID | LOG_ODELAY, LOG_DAEMON); - fromlen = sizeof (from); - if (getpeername(0, (struct sockaddr *)&from, &fromlen) < 0) { - warn("getpeername"); - _exit(1); - } - if (keepalive && - setsockopt(0, SOL_SOCKET, SO_KEEPALIVE, - (char *)&on, sizeof (on)) < 0) { - syslog(LOG_WARNING, "setsockopt (SO_KEEPALIVE): %m"); - } - -#if defined(IPPROTO_IP) && defined(IP_TOS) - if (from.ss_family == AF_INET) { -# if defined(HAS_GETTOS) - struct tosent *tp; - if (tos < 0 && (tp = gettosbyname("telnet", "tcp"))) - tos = tp->t_tos; -# endif - if (tos < 0) - tos = 020; /* Low Delay bit */ - if (tos - && (setsockopt(0, IPPROTO_IP, IP_TOS, - (char *)&tos, sizeof(tos)) < 0) - && (errno != ENOPROTOOPT) ) - syslog(LOG_WARNING, "setsockopt (IP_TOS): %m"); - } -#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ - net = 0; - doit((struct sockaddr *)&from); - /* NOTREACHED */ - return(0); -} /* end of main */ - - void -usage() -{ - fprintf(stderr, "usage: telnetd"); -#ifdef AUTHENTICATION - fprintf(stderr, " [-a (debug|other|user|valid|off|none)]\n\t"); -#endif -#ifdef BFTPDAEMON - fprintf(stderr, " [-B]"); -#endif - fprintf(stderr, " [-debug]"); -#ifdef DIAGNOSTICS - fprintf(stderr, " [-D (options|report|exercise|netdata|ptydata)]\n\t"); -#endif -#ifdef AUTHENTICATION - fprintf(stderr, " [-edebug]"); -#endif - fprintf(stderr, " [-h]"); -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - fprintf(stderr, " [-k]"); -#endif -#ifdef LINEMODE - fprintf(stderr, " [-l]"); -#endif - fprintf(stderr, " [-n]"); - fprintf(stderr, "\n\t"); -#ifdef HAS_GETTOS - fprintf(stderr, " [-S tos]"); -#endif -#ifdef AUTHENTICATION - fprintf(stderr, " [-X auth-type]"); -#endif - fprintf(stderr, " [-u utmp_hostname_length] [-U]"); - fprintf(stderr, " [port]\n"); - exit(1); -} - -/* - * getterminaltype - * - * Ask the other end to send along its terminal type and speed. - * Output is the variable terminaltype filled in. - */ -static unsigned char ttytype_sbbuf[] = { - IAC, SB, TELOPT_TTYPE, TELQUAL_SEND, IAC, SE -}; - - -#ifndef AUTHENTICATION -#define undef2 __unused -#else -#define undef2 -#endif - -static int -getterminaltype(char *name undef2) -{ - int retval = -1; - - settimer(baseline); -#ifdef AUTHENTICATION - /* - * Handle the Authentication option before we do anything else. - */ - send_do(TELOPT_AUTHENTICATION, 1); - while (his_will_wont_is_changing(TELOPT_AUTHENTICATION)) - ttloop(); - if (his_state_is_will(TELOPT_AUTHENTICATION)) { - retval = auth_wait(name); - } -#endif - -#ifdef ENCRYPTION - send_will(TELOPT_ENCRYPT, 1); -#endif /* ENCRYPTION */ - send_do(TELOPT_TTYPE, 1); - send_do(TELOPT_TSPEED, 1); - send_do(TELOPT_XDISPLOC, 1); - send_do(TELOPT_NEW_ENVIRON, 1); - send_do(TELOPT_OLD_ENVIRON, 1); - while ( -#ifdef ENCRYPTION - his_do_dont_is_changing(TELOPT_ENCRYPT) || -#endif /* ENCRYPTION */ - his_will_wont_is_changing(TELOPT_TTYPE) || - his_will_wont_is_changing(TELOPT_TSPEED) || - his_will_wont_is_changing(TELOPT_XDISPLOC) || - his_will_wont_is_changing(TELOPT_NEW_ENVIRON) || - his_will_wont_is_changing(TELOPT_OLD_ENVIRON)) { - ttloop(); - } -#ifdef ENCRYPTION - /* - * Wait for the negotiation of what type of encryption we can - * send with. If autoencrypt is not set, this will just return. - */ - if (his_state_is_will(TELOPT_ENCRYPT)) { - encrypt_wait(); - } -#endif /* ENCRYPTION */ - if (his_state_is_will(TELOPT_TSPEED)) { - static unsigned char sb[] = - { IAC, SB, TELOPT_TSPEED, TELQUAL_SEND, IAC, SE }; - - output_datalen(sb, sizeof sb); - DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2);); - } - if (his_state_is_will(TELOPT_XDISPLOC)) { - static unsigned char sb[] = - { IAC, SB, TELOPT_XDISPLOC, TELQUAL_SEND, IAC, SE }; - - output_datalen(sb, sizeof sb); - DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2);); - } - if (his_state_is_will(TELOPT_NEW_ENVIRON)) { - static unsigned char sb[] = - { IAC, SB, TELOPT_NEW_ENVIRON, TELQUAL_SEND, IAC, SE }; - - output_datalen(sb, sizeof sb); - DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2);); - } - else if (his_state_is_will(TELOPT_OLD_ENVIRON)) { - static unsigned char sb[] = - { IAC, SB, TELOPT_OLD_ENVIRON, TELQUAL_SEND, IAC, SE }; - - output_datalen(sb, sizeof sb); - DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2);); - } - if (his_state_is_will(TELOPT_TTYPE)) { - - output_datalen(ttytype_sbbuf, sizeof ttytype_sbbuf); - DIAG(TD_OPTIONS, printsub('>', ttytype_sbbuf + 2, - sizeof ttytype_sbbuf - 2);); - } - if (his_state_is_will(TELOPT_TSPEED)) { - while (sequenceIs(tspeedsubopt, baseline)) - ttloop(); - } - if (his_state_is_will(TELOPT_XDISPLOC)) { - while (sequenceIs(xdisplocsubopt, baseline)) - ttloop(); - } - if (his_state_is_will(TELOPT_NEW_ENVIRON)) { - while (sequenceIs(environsubopt, baseline)) - ttloop(); - } - if (his_state_is_will(TELOPT_OLD_ENVIRON)) { - while (sequenceIs(oenvironsubopt, baseline)) - ttloop(); - } - if (his_state_is_will(TELOPT_TTYPE)) { - char first[256], last[256]; - - while (sequenceIs(ttypesubopt, baseline)) - ttloop(); - - /* - * If the other side has already disabled the option, then - * we have to just go with what we (might) have already gotten. - */ - if (his_state_is_will(TELOPT_TTYPE) && !terminaltypeok(terminaltype)) { - (void) strncpy(first, terminaltype, sizeof(first)-1); - first[sizeof(first)-1] = '\0'; - for(;;) { - /* - * Save the unknown name, and request the next name. - */ - (void) strncpy(last, terminaltype, sizeof(last)-1); - last[sizeof(last)-1] = '\0'; - _gettermname(); - if (terminaltypeok(terminaltype)) - break; - if ((strncmp(last, terminaltype, sizeof(last)) == 0) || - his_state_is_wont(TELOPT_TTYPE)) { - /* - * We've hit the end. If this is the same as - * the first name, just go with it. - */ - if (strncmp(first, terminaltype, sizeof(first)) == 0) - break; - /* - * Get the terminal name one more time, so that - * RFC1091 compliant telnets will cycle back to - * the start of the list. - */ - _gettermname(); - if (strncmp(first, terminaltype, sizeof(first)) != 0) { - (void) strncpy(terminaltype, first, sizeof(terminaltype)-1); - terminaltype[sizeof(terminaltype)-1] = '\0'; - } - break; - } - } - } - } - return(retval); -} /* end of getterminaltype */ - -static void -_gettermname(void) -{ - /* - * If the client turned off the option, - * we can't send another request, so we - * just return. - */ - if (his_state_is_wont(TELOPT_TTYPE)) - return; - settimer(baseline); - output_datalen(ttytype_sbbuf, sizeof ttytype_sbbuf); - DIAG(TD_OPTIONS, printsub('>', ttytype_sbbuf + 2, - sizeof ttytype_sbbuf - 2);); - while (sequenceIs(ttypesubopt, baseline)) - ttloop(); -} - -int -terminaltypeok(char *s) -{ - char buf[1024]; - - if (terminaltype == NULL) - return(1); - - /* - * tgetent() will return 1 if the type is known, and - * 0 if it is not known. If it returns -1, it couldn't - * open the database. But if we can't open the database, - * it won't help to say we failed, because we won't be - * able to verify anything else. So, we treat -1 like 1. - */ - if (tgetent(buf, s) == 0) - return(0); - return(1); -} - -/* - * Get a pty, scan input lines. - */ -void -doit(struct sockaddr *who) -{ - int err_; /* XXX */ - int ptynum; - - /* - * Find an available pty to use. - */ -#ifndef convex - pty = getpty(&ptynum); - if (pty < 0) - fatal(net, "All network ports in use"); -#else - for (;;) { - char *lp; - - if ((lp = getpty()) == NULL) - fatal(net, "Out of ptys"); - - if ((pty = open(lp, 2)) >= 0) { - strlcpy(line,lp,sizeof(line)); - line[5] = 't'; - break; - } - } -#endif - - /* get name of connected client */ - if (realhostname_sa(remote_hostname, sizeof(remote_hostname) - 1, - who, who->sa_len) == HOSTNAME_INVALIDADDR && registerd_host_only) - fatal(net, "Couldn't resolve your address into a host name.\r\n\ - Please contact your net administrator"); - remote_hostname[sizeof(remote_hostname) - 1] = '\0'; - - trimdomain(remote_hostname, UT_HOSTSIZE); - if (!isdigit(remote_hostname[0]) && strlen(remote_hostname) > utmp_len) - err_ = getnameinfo(who, who->sa_len, remote_hostname, - sizeof(remote_hostname), NULL, 0, - NI_NUMERICHOST|NI_WITHSCOPEID); - /* XXX: do 'err_' check */ - - (void) gethostname(host_name, sizeof(host_name) - 1); - host_name[sizeof(host_name) - 1] = '\0'; - hostname = host_name; - -#ifdef AUTHENTICATION -#ifdef ENCRYPTION -/* The above #ifdefs should actually be "or"'ed, not "and"'ed. - * This is a byproduct of needing "#ifdef" and not "#if defined()" - * for unifdef. XXX MarkM - */ - auth_encrypt_init(hostname, remote_hostname, "TELNETD", 1); -#endif -#endif - - init_env(); - /* - * get terminal type. - */ - *user_name = 0; - level = getterminaltype(user_name); - setenv("TERM", terminaltype ? terminaltype : "network", 1); - - telnet(net, pty, remote_hostname); /* begin server process */ - - /*NOTREACHED*/ -} /* end of doit */ - -/* - * Main loop. Select from pty and network, and - * hand data to telnet receiver finite state machine. - */ -void -telnet(int f, int p, char *host) -{ - int on = 1; -#define TABBUFSIZ 512 - char defent[TABBUFSIZ]; - char defstrs[TABBUFSIZ]; -#undef TABBUFSIZ - char *HE; - char *HN; - char *IM; - int nfd; - - /* - * Initialize the slc mapping table. - */ - get_slc_defaults(); - - /* - * Do some tests where it is desireable to wait for a response. - * Rather than doing them slowly, one at a time, do them all - * at once. - */ - if (my_state_is_wont(TELOPT_SGA)) - send_will(TELOPT_SGA, 1); - /* - * Is the client side a 4.2 (NOT 4.3) system? We need to know this - * because 4.2 clients are unable to deal with TCP urgent data. - * - * To find out, we send out a "DO ECHO". If the remote system - * answers "WILL ECHO" it is probably a 4.2 client, and we note - * that fact ("WILL ECHO" ==> that the client will echo what - * WE, the server, sends it; it does NOT mean that the client will - * echo the terminal input). - */ - send_do(TELOPT_ECHO, 1); - -#ifdef LINEMODE - if (his_state_is_wont(TELOPT_LINEMODE)) { - /* Query the peer for linemode support by trying to negotiate - * the linemode option. - */ - linemode = 0; - editmode = 0; - send_do(TELOPT_LINEMODE, 1); /* send do linemode */ - } -#endif /* LINEMODE */ - - /* - * Send along a couple of other options that we wish to negotiate. - */ - send_do(TELOPT_NAWS, 1); - send_will(TELOPT_STATUS, 1); - flowmode = 1; /* default flow control state */ - restartany = -1; /* uninitialized... */ - send_do(TELOPT_LFLOW, 1); - - /* - * Spin, waiting for a response from the DO ECHO. However, - * some REALLY DUMB telnets out there might not respond - * to the DO ECHO. So, we spin looking for NAWS, (most dumb - * telnets so far seem to respond with WONT for a DO that - * they don't understand...) because by the time we get the - * response, it will already have processed the DO ECHO. - * Kludge upon kludge. - */ - while (his_will_wont_is_changing(TELOPT_NAWS)) - ttloop(); - - /* - * But... - * The client might have sent a WILL NAWS as part of its - * startup code; if so, we'll be here before we get the - * response to the DO ECHO. We'll make the assumption - * that any implementation that understands about NAWS - * is a modern enough implementation that it will respond - * to our DO ECHO request; hence we'll do another spin - * waiting for the ECHO option to settle down, which is - * what we wanted to do in the first place... - */ - if (his_want_state_is_will(TELOPT_ECHO) && - his_state_is_will(TELOPT_NAWS)) { - while (his_will_wont_is_changing(TELOPT_ECHO)) - ttloop(); - } - /* - * On the off chance that the telnet client is broken and does not - * respond to the DO ECHO we sent, (after all, we did send the - * DO NAWS negotiation after the DO ECHO, and we won't get here - * until a response to the DO NAWS comes back) simulate the - * receipt of a will echo. This will also send a WONT ECHO - * to the client, since we assume that the client failed to - * respond because it believes that it is already in DO ECHO - * mode, which we do not want. - */ - if (his_want_state_is_will(TELOPT_ECHO)) { - DIAG(TD_OPTIONS, output_data("td: simulating recv\r\n")); - willoption(TELOPT_ECHO); - } - - /* - * Finally, to clean things up, we turn on our echo. This - * will break stupid 4.2 telnets out of local terminal echo. - */ - - if (my_state_is_wont(TELOPT_ECHO)) - send_will(TELOPT_ECHO, 1); - - /* - * Turn on packet mode - */ - (void) ioctl(p, TIOCPKT, (char *)&on); - -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - /* - * Continuing line mode support. If client does not support - * real linemode, attempt to negotiate kludge linemode by sending - * the do timing mark sequence. - */ - if (lmodetype < REAL_LINEMODE) - send_do(TELOPT_TM, 1); -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - - /* - * Call telrcv() once to pick up anything received during - * terminal type negotiation, 4.2/4.3 determination, and - * linemode negotiation. - */ - telrcv(); - - (void) ioctl(f, FIONBIO, (char *)&on); - (void) ioctl(p, FIONBIO, (char *)&on); - -#if defined(SO_OOBINLINE) - (void) setsockopt(net, SOL_SOCKET, SO_OOBINLINE, - (char *)&on, sizeof on); -#endif /* defined(SO_OOBINLINE) */ - -#ifdef SIGTSTP - (void) signal(SIGTSTP, SIG_IGN); -#endif -#ifdef SIGTTOU - /* - * Ignoring SIGTTOU keeps the kernel from blocking us - * in ttioct() in /sys/tty.c. - */ - (void) signal(SIGTTOU, SIG_IGN); -#endif - - (void) signal(SIGCHLD, cleanup); - -#ifdef TIOCNOTTY - { - int t; - t = open(_PATH_TTY, O_RDWR); - if (t >= 0) { - (void) ioctl(t, TIOCNOTTY, (char *)0); - (void) close(t); - } - } -#endif - - /* - * Show banner that getty never gave. - * - * We put the banner in the pty input buffer. This way, it - * gets carriage return null processing, etc., just like all - * other pty --> client data. - */ - - if (getent(defent, "default") == 1) { - char *cp=defstrs; - - HE = Getstr("he", &cp); - HN = Getstr("hn", &cp); - IM = Getstr("im", &cp); - if (HN && *HN) - (void) strlcpy(host_name, HN, sizeof(host_name)); - if (IM == 0) - IM = strdup(""); - } else { - IM = strdup(DEFAULT_IM); - HE = 0; - } - edithost(HE, host_name); - if (hostinfo && *IM) - putf(IM, ptyibuf2); - - if (pcc) - (void) strncat(ptyibuf2, ptyip, pcc+1); - ptyip = ptyibuf2; - pcc = strlen(ptyip); -#ifdef LINEMODE - /* - * Last check to make sure all our states are correct. - */ - init_termbuf(); - localstat(); -#endif /* LINEMODE */ - - DIAG(TD_REPORT, output_data("td: Entering processing loop\r\n")); - - /* - * Startup the login process on the slave side of the terminal - * now. We delay this until here to insure option negotiation - * is complete. - */ - startslave(host, level, user_name); - - nfd = ((f > p) ? f : p) + 1; - for (;;) { - fd_set ibits, obits, xbits; - int c; - - if (ncc < 0 && pcc < 0) - break; - - FD_ZERO(&ibits); - FD_ZERO(&obits); - FD_ZERO(&xbits); - /* - * Never look for input if there's still - * stuff in the corresponding output buffer - */ - if (nfrontp - nbackp || pcc > 0) { - FD_SET(f, &obits); - } else { - FD_SET(p, &ibits); - } - if (pfrontp - pbackp || ncc > 0) { - FD_SET(p, &obits); - } else { - FD_SET(f, &ibits); - } - if (!SYNCHing) { - FD_SET(f, &xbits); - } - if ((c = select(nfd, &ibits, &obits, &xbits, - (struct timeval *)0)) < 1) { - if (c == -1) { - if (errno == EINTR) { - continue; - } - } - sleep(5); - continue; - } - - /* - * Any urgent data? - */ - if (FD_ISSET(net, &xbits)) { - SYNCHing = 1; - } - - /* - * Something to read from the network... - */ - if (FD_ISSET(net, &ibits)) { -#if !defined(SO_OOBINLINE) - /* - * In 4.2 (and 4.3 beta) systems, the - * OOB indication and data handling in the kernel - * is such that if two separate TCP Urgent requests - * come in, one byte of TCP data will be overlaid. - * This is fatal for Telnet, but we try to live - * with it. - * - * In addition, in 4.2 (and...), a special protocol - * is needed to pick up the TCP Urgent data in - * the correct sequence. - * - * What we do is: if we think we are in urgent - * mode, we look to see if we are "at the mark". - * If we are, we do an OOB receive. If we run - * this twice, we will do the OOB receive twice, - * but the second will fail, since the second - * time we were "at the mark", but there wasn't - * any data there (the kernel doesn't reset - * "at the mark" until we do a normal read). - * Once we've read the OOB data, we go ahead - * and do normal reads. - * - * There is also another problem, which is that - * since the OOB byte we read doesn't put us - * out of OOB state, and since that byte is most - * likely the TELNET DM (data mark), we would - * stay in the TELNET SYNCH (SYNCHing) state. - * So, clocks to the rescue. If we've "just" - * received a DM, then we test for the - * presence of OOB data when the receive OOB - * fails (and AFTER we did the normal mode read - * to clear "at the mark"). - */ - if (SYNCHing) { - int atmark; - - (void) ioctl(net, SIOCATMARK, (char *)&atmark); - if (atmark) { - ncc = recv(net, netibuf, sizeof (netibuf), MSG_OOB); - if ((ncc == -1) && (errno == EINVAL)) { - ncc = read(net, netibuf, sizeof (netibuf)); - if (sequenceIs(didnetreceive, gotDM)) { - SYNCHing = stilloob(net); - } - } - } else { - ncc = read(net, netibuf, sizeof (netibuf)); - } - } else { - ncc = read(net, netibuf, sizeof (netibuf)); - } - settimer(didnetreceive); -#else /* !defined(SO_OOBINLINE)) */ - ncc = read(net, netibuf, sizeof (netibuf)); -#endif /* !defined(SO_OOBINLINE)) */ - if (ncc < 0 && errno == EWOULDBLOCK) - ncc = 0; - else { - if (ncc <= 0) { - break; - } - netip = netibuf; - } - DIAG((TD_REPORT | TD_NETDATA), - output_data("td: netread %d chars\r\n", ncc)); - DIAG(TD_NETDATA, printdata("nd", netip, ncc)); - } - - /* - * Something to read from the pty... - */ - if (FD_ISSET(p, &ibits)) { - pcc = read(p, ptyibuf, BUFSIZ); - /* - * On some systems, if we try to read something - * off the master side before the slave side is - * opened, we get EIO. - */ - if (pcc < 0 && (errno == EWOULDBLOCK || -#ifdef EAGAIN - errno == EAGAIN || -#endif - errno == EIO)) { - pcc = 0; - } else { - if (pcc <= 0) - break; -#ifdef LINEMODE - /* - * If ioctl from pty, pass it through net - */ - if (ptyibuf[0] & TIOCPKT_IOCTL) { - copy_termbuf(ptyibuf+1, pcc-1); - localstat(); - pcc = 1; - } -#endif /* LINEMODE */ - if (ptyibuf[0] & TIOCPKT_FLUSHWRITE) { - netclear(); /* clear buffer back */ -#ifndef NO_URGENT - /* - * There are client telnets on some - * operating systems get screwed up - * royally if we send them urgent - * mode data. - */ - output_data("%c%c", IAC, DM); - neturg = nfrontp-1; /* off by one XXX */ - DIAG(TD_OPTIONS, - printoption("td: send IAC", DM)); - -#endif - } - if (his_state_is_will(TELOPT_LFLOW) && - (ptyibuf[0] & - (TIOCPKT_NOSTOP|TIOCPKT_DOSTOP))) { - int newflow = - ptyibuf[0] & TIOCPKT_DOSTOP ? 1 : 0; - if (newflow != flowmode) { - flowmode = newflow; - output_data("%c%c%c%c%c%c", - IAC, SB, TELOPT_LFLOW, - flowmode ? LFLOW_ON - : LFLOW_OFF, - IAC, SE); - DIAG(TD_OPTIONS, printsub('>', - (unsigned char *)nfrontp-4, - 4);); - } - } - pcc--; - ptyip = ptyibuf+1; - } - } - - while (pcc > 0) { - if ((&netobuf[BUFSIZ] - nfrontp) < 2) - break; - c = *ptyip++ & 0377, pcc--; - if (c == IAC) - output_data("%c", c); - output_data("%c", c); - if ((c == '\r') && (my_state_is_wont(TELOPT_BINARY))) { - if (pcc > 0 && ((*ptyip & 0377) == '\n')) { - output_data("%c", *ptyip++ & 0377); - pcc--; - } else - output_data("%c", '\0'); - } - } - - if (FD_ISSET(f, &obits) && (nfrontp - nbackp) > 0) - netflush(); - if (ncc > 0) - telrcv(); - if (FD_ISSET(p, &obits) && (pfrontp - pbackp) > 0) - ptyflush(); - } - cleanup(0); -} /* end of telnet */ - -#ifndef TCSIG -# ifdef TIOCSIG -# define TCSIG TIOCSIG -# endif -#endif - -/* - * Send interrupt to process on other side of pty. - * If it is in raw mode, just write NULL; - * otherwise, write intr char. - */ -void -interrupt(void) -{ - ptyflush(); /* half-hearted */ - -#ifdef TCSIG - (void) ioctl(pty, TCSIG, (char *)SIGINT); -#else /* TCSIG */ - init_termbuf(); - *pfrontp++ = slctab[SLC_IP].sptr ? - (unsigned char)*slctab[SLC_IP].sptr : '\177'; -#endif /* TCSIG */ -} - -/* - * Send quit to process on other side of pty. - * If it is in raw mode, just write NULL; - * otherwise, write quit char. - */ -void -sendbrk(void) -{ - ptyflush(); /* half-hearted */ -#ifdef TCSIG - (void) ioctl(pty, TCSIG, (char *)SIGQUIT); -#else /* TCSIG */ - init_termbuf(); - *pfrontp++ = slctab[SLC_ABORT].sptr ? - (unsigned char)*slctab[SLC_ABORT].sptr : '\034'; -#endif /* TCSIG */ -} - -void -sendsusp(void) -{ -#ifdef SIGTSTP - ptyflush(); /* half-hearted */ -# ifdef TCSIG - (void) ioctl(pty, TCSIG, (char *)SIGTSTP); -# else /* TCSIG */ - *pfrontp++ = slctab[SLC_SUSP].sptr ? - (unsigned char)*slctab[SLC_SUSP].sptr : '\032'; -# endif /* TCSIG */ -#endif /* SIGTSTP */ -} - -/* - * When we get an AYT, if ^T is enabled, use that. Otherwise, - * just send back "[Yes]". - */ -void -recv_ayt(void) -{ -#if defined(SIGINFO) && defined(TCSIG) - if (slctab[SLC_AYT].sptr && *slctab[SLC_AYT].sptr != _POSIX_VDISABLE) { - (void) ioctl(pty, TCSIG, (char *)SIGINFO); - return; - } -#endif - output_data("\r\n[Yes]\r\n"); -} - -void -doeof(void) -{ - init_termbuf(); - -#if defined(LINEMODE) && defined(USE_TERMIO) && (VEOF == VMIN) - if (!tty_isediting()) { - extern char oldeofc; - *pfrontp++ = oldeofc; - return; - } -#endif - *pfrontp++ = slctab[SLC_EOF].sptr ? - (unsigned char)*slctab[SLC_EOF].sptr : '\004'; -} diff --git a/crypto/telnet/telnetd/telnetd.h b/crypto/telnet/telnetd/telnetd.h deleted file mode 100644 index 5bfc572..0000000 --- a/crypto/telnet/telnetd/telnetd.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)telnetd.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - - -#include "defs.h" -#include "ext.h" - -#ifdef DIAGNOSTICS -#define DIAG(a,b) if (diagnostic & (a)) b -#else -#define DIAG(a,b) -#endif - -/* other external variables */ -extern char **environ; -extern const char *altlogin; diff --git a/crypto/telnet/telnetd/termstat.c b/crypto/telnet/telnetd/termstat.c deleted file mode 100644 index 36f5997..0000000 --- a/crypto/telnet/telnetd/termstat.c +++ /dev/null @@ -1,632 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)termstat.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "telnetd.h" - -#ifdef ENCRYPTION -#include <libtelnet/encrypt.h> -#endif - -/* - * local variables - */ -int def_tspeed = -1, def_rspeed = -1; -#ifdef TIOCSWINSZ -int def_row = 0, def_col = 0; -#endif -#ifdef LINEMODE -static int _terminit = 0; -#endif /* LINEMODE */ - -#ifdef LINEMODE -/* - * localstat - * - * This function handles all management of linemode. - * - * Linemode allows the client to do the local editing of data - * and send only complete lines to the server. Linemode state is - * based on the state of the pty driver. If the pty is set for - * external processing, then we can use linemode. Further, if we - * can use real linemode, then we can look at the edit control bits - * in the pty to determine what editing the client should do. - * - * Linemode support uses the following state flags to keep track of - * current and desired linemode state. - * alwayslinemode : true if -l was specified on the telnetd - * command line. It means to have linemode on as much as - * possible. - * - * lmodetype: signifies whether the client can - * handle real linemode, or if use of kludgeomatic linemode - * is preferred. It will be set to one of the following: - * REAL_LINEMODE : use linemode option - * NO_KLUDGE : don't initiate kludge linemode. - * KLUDGE_LINEMODE : use kludge linemode - * NO_LINEMODE : client is ignorant of linemode - * - * linemode, uselinemode : linemode is true if linemode - * is currently on, uselinemode is the state that we wish - * to be in. If another function wishes to turn linemode - * on or off, it sets or clears uselinemode. - * - * editmode, useeditmode : like linemode/uselinemode, but - * these contain the edit mode states (edit and trapsig). - * - * The state variables correspond to some of the state information - * in the pty. - * linemode: - * In real linemode, this corresponds to whether the pty - * expects external processing of incoming data. - * In kludge linemode, this more closely corresponds to the - * whether normal processing is on or not. (ICANON in - * system V, or COOKED mode in BSD.) - * If the -l option was specified (alwayslinemode), then - * an attempt is made to force external processing on at - * all times. - * - * The following heuristics are applied to determine linemode - * handling within the server. - * 1) Early on in starting up the server, an attempt is made - * to negotiate the linemode option. If this succeeds - * then lmodetype is set to REAL_LINEMODE and all linemode - * processing occurs in the context of the linemode option. - * 2) If the attempt to negotiate the linemode option failed, - * and the "-k" (don't initiate kludge linemode) isn't set, - * then we try to use kludge linemode. We test for this - * capability by sending "do Timing Mark". If a positive - * response comes back, then we assume that the client - * understands kludge linemode (ech!) and the - * lmodetype flag is set to KLUDGE_LINEMODE. - * 3) Otherwise, linemode is not supported at all and - * lmodetype remains set to NO_LINEMODE (which happens - * to be 0 for convenience). - * 4) At any time a command arrives that implies a higher - * state of linemode support in the client, we move to that - * linemode support. - * - * A short explanation of kludge linemode is in order here. - * 1) The heuristic to determine support for kludge linemode - * is to send a do timing mark. We assume that a client - * that supports timing marks also supports kludge linemode. - * A risky proposition at best. - * 2) Further negotiation of linemode is done by changing the - * the server's state regarding SGA. If server will SGA, - * then linemode is off, if server won't SGA, then linemode - * is on. - */ -void -localstat(void) -{ - int need_will_echo = 0; - - /* - * Check for changes to flow control if client supports it. - */ - flowstat(); - - /* - * Check linemode on/off state - */ - uselinemode = tty_linemode(); - - /* - * If alwayslinemode is on, and pty is changing to turn it off, then - * force linemode back on. - */ - if (alwayslinemode && linemode && !uselinemode) { - uselinemode = 1; - tty_setlinemode(uselinemode); - } - - if (uselinemode) { - /* - * Check for state of BINARY options. - * - * We only need to do the binary dance if we are actually going - * to use linemode. As this confuses some telnet clients - * that don't support linemode, and doesn't gain us - * anything, we don't do it unless we're doing linemode. - * -Crh (henrich@msu.edu) - */ - - if (tty_isbinaryin()) { - if (his_want_state_is_wont(TELOPT_BINARY)) - send_do(TELOPT_BINARY, 1); - } else { - if (his_want_state_is_will(TELOPT_BINARY)) - send_dont(TELOPT_BINARY, 1); - } - - if (tty_isbinaryout()) { - if (my_want_state_is_wont(TELOPT_BINARY)) - send_will(TELOPT_BINARY, 1); - } else { - if (my_want_state_is_will(TELOPT_BINARY)) - send_wont(TELOPT_BINARY, 1); - } - } - -#ifdef ENCRYPTION - /* - * If the terminal is not echoing, but editing is enabled, - * something like password input is going to happen, so - * if we the other side is not currently sending encrypted - * data, ask the other side to start encrypting. - */ - if (his_state_is_will(TELOPT_ENCRYPT)) { - static int enc_passwd = 0; - if (uselinemode && !tty_isecho() && tty_isediting() - && (enc_passwd == 0) && !decrypt_input) { - encrypt_send_request_start(); - enc_passwd = 1; - } else if (enc_passwd) { - encrypt_send_request_end(); - enc_passwd = 0; - } - } -#endif /* ENCRYPTION */ - - /* - * Do echo mode handling as soon as we know what the - * linemode is going to be. - * If the pty has echo turned off, then tell the client that - * the server will echo. If echo is on, then the server - * will echo if in character mode, but in linemode the - * client should do local echoing. The state machine will - * not send anything if it is unnecessary, so don't worry - * about that here. - * - * If we need to send the WILL ECHO (because echo is off), - * then delay that until after we have changed the MODE. - * This way, when the user is turning off both editing - * and echo, the client will get editing turned off first. - * This keeps the client from going into encryption mode - * and then right back out if it is doing auto-encryption - * when passwords are being typed. - */ - if (uselinemode) { - if (tty_isecho()) - send_wont(TELOPT_ECHO, 1); - else - need_will_echo = 1; -#ifdef KLUDGELINEMODE - if (lmodetype == KLUDGE_OK) - lmodetype = KLUDGE_LINEMODE; -#endif - } - - /* - * If linemode is being turned off, send appropriate - * command and then we're all done. - */ - if (!uselinemode && linemode) { -# ifdef KLUDGELINEMODE - if (lmodetype == REAL_LINEMODE) { -# endif /* KLUDGELINEMODE */ - send_dont(TELOPT_LINEMODE, 1); -# ifdef KLUDGELINEMODE - } else if (lmodetype == KLUDGE_LINEMODE) - send_will(TELOPT_SGA, 1); -# endif /* KLUDGELINEMODE */ - send_will(TELOPT_ECHO, 1); - linemode = uselinemode; - goto done; - } - -# ifdef KLUDGELINEMODE - /* - * If using real linemode check edit modes for possible later use. - * If we are in kludge linemode, do the SGA negotiation. - */ - if (lmodetype == REAL_LINEMODE) { -# endif /* KLUDGELINEMODE */ - useeditmode = 0; - if (tty_isediting()) - useeditmode |= MODE_EDIT; - if (tty_istrapsig()) - useeditmode |= MODE_TRAPSIG; - if (tty_issofttab()) - useeditmode |= MODE_SOFT_TAB; - if (tty_islitecho()) - useeditmode |= MODE_LIT_ECHO; -# ifdef KLUDGELINEMODE - } else if (lmodetype == KLUDGE_LINEMODE) { - if (tty_isediting() && uselinemode) - send_wont(TELOPT_SGA, 1); - else - send_will(TELOPT_SGA, 1); - } -# endif /* KLUDGELINEMODE */ - - /* - * Negotiate linemode on if pty state has changed to turn it on. - * Send appropriate command and send along edit mode, then all done. - */ - if (uselinemode && !linemode) { -# ifdef KLUDGELINEMODE - if (lmodetype == KLUDGE_LINEMODE) { - send_wont(TELOPT_SGA, 1); - } else if (lmodetype == REAL_LINEMODE) { -# endif /* KLUDGELINEMODE */ - send_do(TELOPT_LINEMODE, 1); - /* send along edit modes */ - output_data("%c%c%c%c%c%c%c", IAC, SB, - TELOPT_LINEMODE, LM_MODE, useeditmode, - IAC, SE); - editmode = useeditmode; -# ifdef KLUDGELINEMODE - } -# endif /* KLUDGELINEMODE */ - linemode = uselinemode; - goto done; - } - -# ifdef KLUDGELINEMODE - /* - * None of what follows is of any value if not using - * real linemode. - */ - if (lmodetype < REAL_LINEMODE) - goto done; -# endif /* KLUDGELINEMODE */ - - if (linemode && his_state_is_will(TELOPT_LINEMODE)) { - /* - * If edit mode changed, send edit mode. - */ - if (useeditmode != editmode) { - /* - * Send along appropriate edit mode mask. - */ - output_data("%c%c%c%c%c%c%c", IAC, SB, - TELOPT_LINEMODE, LM_MODE, useeditmode, - IAC, SE); - editmode = useeditmode; - } - - - /* - * Check for changes to special characters in use. - */ - start_slc(0); - check_slc(); - (void) end_slc(0); - } - -done: - if (need_will_echo) - send_will(TELOPT_ECHO, 1); - /* - * Some things should be deferred until after the pty state has - * been set by the local process. Do those things that have been - * deferred now. This only happens once. - */ - if (_terminit == 0) { - _terminit = 1; - defer_terminit(); - } - - netflush(); - set_termbuf(); - return; - -} /* end of localstat */ -#endif /* LINEMODE */ - -/* - * flowstat - * - * Check for changes to flow control - */ -void -flowstat(void) -{ - if (his_state_is_will(TELOPT_LFLOW)) { - if (tty_flowmode() != flowmode) { - flowmode = tty_flowmode(); - output_data("%c%c%c%c%c%c", - IAC, SB, TELOPT_LFLOW, - flowmode ? LFLOW_ON : LFLOW_OFF, - IAC, SE); - } - if (tty_restartany() != restartany) { - restartany = tty_restartany(); - output_data("%c%c%c%c%c%c", - IAC, SB, TELOPT_LFLOW, - restartany ? LFLOW_RESTART_ANY - : LFLOW_RESTART_XON, - IAC, SE); - } - } -} - -/* - * clientstat - * - * Process linemode related requests from the client. - * Client can request a change to only one of linemode, editmode or slc's - * at a time, and if using kludge linemode, then only linemode may be - * affected. - */ -void -clientstat(int code, int parm1, int parm2) -{ - - /* - * Get a copy of terminal characteristics. - */ - init_termbuf(); - - /* - * Process request from client. code tells what it is. - */ - switch (code) { -#ifdef LINEMODE - case TELOPT_LINEMODE: - /* - * Don't do anything unless client is asking us to change - * modes. - */ - uselinemode = (parm1 == WILL); - if (uselinemode != linemode) { -# ifdef KLUDGELINEMODE - /* - * If using kludge linemode, make sure that - * we can do what the client asks. - * We can not turn off linemode if alwayslinemode - * and the ICANON bit is set. - */ - if (lmodetype == KLUDGE_LINEMODE) { - if (alwayslinemode && tty_isediting()) { - uselinemode = 1; - } - } - - /* - * Quit now if we can't do it. - */ - if (uselinemode == linemode) - return; - - /* - * If using real linemode and linemode is being - * turned on, send along the edit mode mask. - */ - if (lmodetype == REAL_LINEMODE && uselinemode) -# else /* KLUDGELINEMODE */ - if (uselinemode) -# endif /* KLUDGELINEMODE */ - { - useeditmode = 0; - if (tty_isediting()) - useeditmode |= MODE_EDIT; - if (tty_istrapsig) - useeditmode |= MODE_TRAPSIG; - if (tty_issofttab()) - useeditmode |= MODE_SOFT_TAB; - if (tty_islitecho()) - useeditmode |= MODE_LIT_ECHO; - output_data("%c%c%c%c%c%c%c", IAC, - SB, TELOPT_LINEMODE, LM_MODE, - useeditmode, IAC, SE); - editmode = useeditmode; - } - - - tty_setlinemode(uselinemode); - - linemode = uselinemode; - - if (!linemode) - send_will(TELOPT_ECHO, 1); - } - break; - - case LM_MODE: - { - int ack, changed; - - /* - * Client has sent along a mode mask. If it agrees with - * what we are currently doing, ignore it; if not, it could - * be viewed as a request to change. Note that the server - * will change to the modes in an ack if it is different from - * what we currently have, but we will not ack the ack. - */ - useeditmode &= MODE_MASK; - ack = (useeditmode & MODE_ACK); - useeditmode &= ~MODE_ACK; - - if ((changed = (useeditmode ^ editmode))) { - /* - * This check is for a timing problem. If the - * state of the tty has changed (due to the user - * application) we need to process that info - * before we write in the state contained in the - * ack!!! This gets out the new MODE request, - * and when the ack to that command comes back - * we'll set it and be in the right mode. - */ - if (ack) - localstat(); - if (changed & MODE_EDIT) - tty_setedit(useeditmode & MODE_EDIT); - - if (changed & MODE_TRAPSIG) - tty_setsig(useeditmode & MODE_TRAPSIG); - - if (changed & MODE_SOFT_TAB) - tty_setsofttab(useeditmode & MODE_SOFT_TAB); - - if (changed & MODE_LIT_ECHO) - tty_setlitecho(useeditmode & MODE_LIT_ECHO); - - set_termbuf(); - - if (!ack) { - output_data("%c%c%c%c%c%c%c", IAC, - SB, TELOPT_LINEMODE, LM_MODE, - useeditmode|MODE_ACK, - IAC, SE); - } - - editmode = useeditmode; - } - - break; - - } /* end of case LM_MODE */ -#endif /* LINEMODE */ - - case TELOPT_NAWS: -#ifdef TIOCSWINSZ - { - struct winsize ws; - - def_col = parm1; - def_row = parm2; -#ifdef LINEMODE - /* - * Defer changing window size until after terminal is - * initialized. - */ - if (terminit() == 0) - return; -#endif /* LINEMODE */ - - /* - * Change window size as requested by client. - */ - - ws.ws_col = parm1; - ws.ws_row = parm2; - (void) ioctl(pty, TIOCSWINSZ, (char *)&ws); - } -#endif /* TIOCSWINSZ */ - - break; - - case TELOPT_TSPEED: - { - def_tspeed = parm1; - def_rspeed = parm2; -#ifdef LINEMODE - /* - * Defer changing the terminal speed. - */ - if (terminit() == 0) - return; -#endif /* LINEMODE */ - /* - * Change terminal speed as requested by client. - * We set the receive speed first, so that if we can't - * store separate receive and transmit speeds, the transmit - * speed will take precedence. - */ - tty_rspeed(parm2); - tty_tspeed(parm1); - set_termbuf(); - - break; - - } /* end of case TELOPT_TSPEED */ - - default: - /* What? */ - break; - } /* end of switch */ - - netflush(); - -} /* end of clientstat */ - -#ifdef LINEMODE -/* - * defer_terminit - * - * Some things should not be done until after the login process has started - * and all the pty modes are set to what they are supposed to be. This - * function is called when the pty state has been processed for the first time. - * It calls other functions that do things that were deferred in each module. - */ -void -defer_terminit(void) -{ - - /* - * local stuff that got deferred. - */ - if (def_tspeed != -1) { - clientstat(TELOPT_TSPEED, def_tspeed, def_rspeed); - def_tspeed = def_rspeed = 0; - } - -#ifdef TIOCSWINSZ - if (def_col || def_row) { - struct winsize ws; - - memset((char *)&ws, 0, sizeof(ws)); - ws.ws_col = def_col; - ws.ws_row = def_row; - (void) ioctl(pty, TIOCSWINSZ, (char *)&ws); - } -#endif - - /* - * The only other module that currently defers anything. - */ - deferslc(); - -} /* end of defer_terminit */ - -/* - * terminit - * - * Returns true if the pty state has been processed yet. - */ -int -terminit(void) -{ - return(_terminit); - -} /* end of terminit */ -#endif /* LINEMODE */ diff --git a/crypto/telnet/telnetd/utility.c b/crypto/telnet/telnetd/utility.c deleted file mode 100644 index 54e2327..0000000 --- a/crypto/telnet/telnetd/utility.c +++ /dev/null @@ -1,1081 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)utility.c 8.4 (Berkeley) 5/30/95"; -#endif /* not lint */ -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#ifdef __FreeBSD__ -#include <locale.h> -#include <sys/utsname.h> -#endif -#include <string.h> -#define PRINTOPTIONS -#include "telnetd.h" - -#ifdef AUTHENTICATION -#include <libtelnet/auth.h> -#endif -#ifdef ENCRYPTION -#include <libtelnet/encrypt.h> -#endif - -/* - * utility functions performing io related tasks - */ - -/* - * ttloop - * - * A small subroutine to flush the network output buffer, get some data - * from the network, and pass it through the telnet state machine. We - * also flush the pty input buffer (by dropping its data) if it becomes - * too full. - */ - - void -ttloop() -{ - - DIAG(TD_REPORT, output_data("td: ttloop\r\n")); - if (nfrontp - nbackp > 0) { - netflush(); - } - ncc = read(net, netibuf, sizeof netibuf); - if (ncc < 0) { - syslog(LOG_INFO, "ttloop: read: %m"); - exit(1); - } else if (ncc == 0) { - syslog(LOG_INFO, "ttloop: peer died: %m"); - exit(1); - } - DIAG(TD_REPORT, output_data("td: ttloop read %d chars\r\n", ncc)); - netip = netibuf; - telrcv(); /* state machine */ - if (ncc > 0) { - pfrontp = pbackp = ptyobuf; - telrcv(); - } -} /* end of ttloop */ - -/* - * Check a descriptor to see if out of band data exists on it. - */ -int -stilloob(int s) -{ - static struct timeval timeout = { 0, 0 }; - fd_set excepts; - int value; - - do { - FD_ZERO(&excepts); - FD_SET(s, &excepts); - memset((char *)&timeout, 0, sizeof timeout); - value = select(s+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout); - } while ((value == -1) && (errno == EINTR)); - - if (value < 0) { - fatalperror(pty, "select"); - } - if (FD_ISSET(s, &excepts)) { - return 1; - } else { - return 0; - } -} - -void -ptyflush(void) -{ - int n; - - if ((n = pfrontp - pbackp) > 0) { - DIAG(TD_REPORT | TD_PTYDATA, - output_data("td: ptyflush %d chars\r\n", n)); - DIAG(TD_PTYDATA, printdata("pd", pbackp, n)); - n = write(pty, pbackp, n); - } - if (n < 0) { - if (errno == EWOULDBLOCK || errno == EINTR) - return; - cleanup(0); - } - pbackp += n; - if (pbackp == pfrontp) - pbackp = pfrontp = ptyobuf; -} - -/* - * nextitem() - * - * Return the address of the next "item" in the TELNET data - * stream. This will be the address of the next character if - * the current address is a user data character, or it will - * be the address of the character following the TELNET command - * if the current address is a TELNET IAC ("I Am a Command") - * character. - */ -static char * -nextitem(char *current) -{ - if ((*current&0xff) != IAC) { - return current+1; - } - switch (*(current+1)&0xff) { - case DO: - case DONT: - case WILL: - case WONT: - return current+3; - case SB: /* loop forever looking for the SE */ - { - char *look = current+2; - - for (;;) { - if ((*look++&0xff) == IAC) { - if ((*look++&0xff) == SE) { - return look; - } - } - } - } - default: - return current+2; - } -} /* end of nextitem */ - -/* - * netclear() - * - * We are about to do a TELNET SYNCH operation. Clear - * the path to the network. - * - * Things are a bit tricky since we may have sent the first - * byte or so of a previous TELNET command into the network. - * So, we have to scan the network buffer from the beginning - * until we are up to where we want to be. - * - * A side effect of what we do, just to keep things - * simple, is to clear the urgent data pointer. The principal - * caller should be setting the urgent data pointer AFTER calling - * us in any case. - */ -void -netclear(void) -{ - char *thisitem, *next; - char *good; -#define wewant(p) ((nfrontp > p) && ((*p&0xff) == IAC) && \ - ((*(p+1)&0xff) != EC) && ((*(p+1)&0xff) != EL)) - -#ifdef ENCRYPTION - thisitem = nclearto > netobuf ? nclearto : netobuf; -#else /* ENCRYPTION */ - thisitem = netobuf; -#endif /* ENCRYPTION */ - - while ((next = nextitem(thisitem)) <= nbackp) { - thisitem = next; - } - - /* Now, thisitem is first before/at boundary. */ - -#ifdef ENCRYPTION - good = nclearto > netobuf ? nclearto : netobuf; -#else /* ENCRYPTION */ - good = netobuf; /* where the good bytes go */ -#endif /* ENCRYPTION */ - - while (nfrontp > thisitem) { - if (wewant(thisitem)) { - int length; - - next = thisitem; - do { - next = nextitem(next); - } while (wewant(next) && (nfrontp > next)); - length = next-thisitem; - memmove(good, thisitem, length); - good += length; - thisitem = next; - } else { - thisitem = nextitem(thisitem); - } - } - - nbackp = netobuf; - nfrontp = good; /* next byte to be sent */ - neturg = 0; -} /* end of netclear */ - -/* - * netflush - * Send as much data as possible to the network, - * handling requests for urgent data. - */ -void -netflush(void) -{ - int n; - extern int not42; - - while ((n = nfrontp - nbackp) > 0) { -#if 0 - /* XXX This causes output_data() to recurse and die */ - DIAG(TD_REPORT, { - n += output_data("td: netflush %d chars\r\n", n); - }); -#endif -#ifdef ENCRYPTION - if (encrypt_output) { - char *s = nclearto ? nclearto : nbackp; - if (nfrontp - s > 0) { - (*encrypt_output)((unsigned char *)s, nfrontp-s); - nclearto = nfrontp; - } - } -#endif /* ENCRYPTION */ - /* - * if no urgent data, or if the other side appears to be an - * old 4.2 client (and thus unable to survive TCP urgent data), - * write the entire buffer in non-OOB mode. - */ - if ((neturg == 0) || (not42 == 0)) { - n = write(net, nbackp, n); /* normal write */ - } else { - n = neturg - nbackp; - /* - * In 4.2 (and 4.3) systems, there is some question about - * what byte in a sendOOB operation is the "OOB" data. - * To make ourselves compatible, we only send ONE byte - * out of band, the one WE THINK should be OOB (though - * we really have more the TCP philosophy of urgent data - * rather than the Unix philosophy of OOB data). - */ - if (n > 1) { - n = send(net, nbackp, n-1, 0); /* send URGENT all by itself */ - } else { - n = send(net, nbackp, n, MSG_OOB); /* URGENT data */ - } - } - if (n == -1) { - if (errno == EWOULDBLOCK || errno == EINTR) - continue; - cleanup(0); - /* NOTREACHED */ - } - nbackp += n; -#ifdef ENCRYPTION - if (nbackp > nclearto) - nclearto = 0; -#endif /* ENCRYPTION */ - if (nbackp >= neturg) { - neturg = 0; - } - if (nbackp == nfrontp) { - nbackp = nfrontp = netobuf; -#ifdef ENCRYPTION - nclearto = 0; -#endif /* ENCRYPTION */ - } - } - return; -} /* end of netflush */ - - -/* - * miscellaneous functions doing a variety of little jobs follow ... - */ - - -void -fatal(int f, const char *msg) -{ - char buf[BUFSIZ]; - - (void) snprintf(buf, sizeof(buf), "telnetd: %s.\r\n", msg); -#ifdef ENCRYPTION - if (encrypt_output) { - /* - * Better turn off encryption first.... - * Hope it flushes... - */ - encrypt_send_end(); - netflush(); - } -#endif /* ENCRYPTION */ - (void) write(f, buf, (int)strlen(buf)); - sleep(1); /*XXX*/ - exit(1); -} - -void -fatalperror(int f, const char *msg) -{ - char buf[BUFSIZ]; - - (void) snprintf(buf, sizeof(buf), "%s: %s", msg, strerror(errno)); - fatal(f, buf); -} - -char editedhost[32]; - -void -edithost(char *pat, char *host) -{ - char *res = editedhost; - - if (!pat) - pat = strdup(""); - while (*pat) { - switch (*pat) { - - case '#': - if (*host) - host++; - break; - - case '@': - if (*host) - *res++ = *host++; - break; - - default: - *res++ = *pat; - break; - } - if (res == &editedhost[sizeof editedhost - 1]) { - *res = '\0'; - return; - } - pat++; - } - if (*host) - (void) strncpy(res, host, - sizeof editedhost - (res - editedhost) -1); - else - *res = '\0'; - editedhost[sizeof editedhost - 1] = '\0'; -} - -static char *putlocation; - -static void -putstr(const char *s) -{ - - while (*s) - putchr(*s++); -} - -void -putchr(int cc) -{ - *putlocation++ = cc; -} - -#ifdef __FreeBSD__ -static char fmtstr[] = { "%+" }; -#else -static char fmtstr[] = { "%l:%M%P on %A, %d %B %Y" }; -#endif - -void -putf(char *cp, char *where) -{ - char *slash; - time_t t; - char db[100]; -#ifdef __FreeBSD__ - static struct utsname kerninfo; - - if (!*kerninfo.sysname) - uname(&kerninfo); -#endif - - putlocation = where; - - while (*cp) { - if (*cp =='\n') { - putstr("\r\n"); - cp++; - continue; - } else if (*cp != '%') { - putchr(*cp++); - continue; - } - switch (*++cp) { - - case 't': -#ifdef STREAMSPTY - /* names are like /dev/pts/2 -- we want pts/2 */ - slash = strchr(line+1, '/'); -#else - slash = strrchr(line, '/'); -#endif - if (slash == (char *) 0) - putstr(line); - else - putstr(&slash[1]); - break; - - case 'h': - putstr(editedhost); - break; - - case 'd': -#ifdef __FreeBSD__ - setlocale(LC_TIME, ""); -#endif - (void)time(&t); - (void)strftime(db, sizeof(db), fmtstr, localtime(&t)); - putstr(db); - break; - -#ifdef __FreeBSD__ - case 's': - putstr(kerninfo.sysname); - break; - - case 'm': - putstr(kerninfo.machine); - break; - - case 'r': - putstr(kerninfo.release); - break; - - case 'v': - putstr(kerninfo.version); - break; -#endif - - case '%': - putchr('%'); - break; - } - cp++; - } -} - -#ifdef DIAGNOSTICS -/* - * Print telnet options and commands in plain text, if possible. - */ -void -printoption(const char *fmt, int option) -{ - if (TELOPT_OK(option)) - output_data("%s %s\r\n", fmt, TELOPT(option)); - else if (TELCMD_OK(option)) - output_data("%s %s\r\n", fmt, TELCMD(option)); - else - output_data("%s %d\r\n", fmt, option); - return; -} - -void -printsub(char direction, unsigned char *pointer, int length) -{ - int i = 0; - - if (!(diagnostic & TD_OPTIONS)) - return; - - if (direction) { - output_data("td: %s suboption ", - direction == '<' ? "recv" : "send"); - if (length >= 3) { - int j; - - i = pointer[length-2]; - j = pointer[length-1]; - - if (i != IAC || j != SE) { - output_data("(terminated by "); - if (TELOPT_OK(i)) - output_data("%s ", TELOPT(i)); - else if (TELCMD_OK(i)) - output_data("%s ", TELCMD(i)); - else - output_data("%d ", i); - if (TELOPT_OK(j)) - output_data("%s", TELOPT(j)); - else if (TELCMD_OK(j)) - output_data("%s", TELCMD(j)); - else - output_data("%d", j); - output_data(", not IAC SE!) "); - } - } - length -= 2; - } - if (length < 1) { - output_data("(Empty suboption??\?)"); - return; - } - switch (pointer[0]) { - case TELOPT_TTYPE: - output_data("TERMINAL-TYPE "); - switch (pointer[1]) { - case TELQUAL_IS: - output_data("IS \"%.*s\"", length-2, (char *)pointer+2); - break; - case TELQUAL_SEND: - output_data("SEND"); - break; - default: - output_data( - "- unknown qualifier %d (0x%x).", - pointer[1], pointer[1]); - } - break; - case TELOPT_TSPEED: - output_data("TERMINAL-SPEED"); - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case TELQUAL_IS: - output_data(" IS %.*s", length-2, (char *)pointer+2); - break; - default: - if (pointer[1] == 1) - output_data(" SEND"); - else - output_data(" %d (unknown)", pointer[1]); - for (i = 2; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - } - break; - - case TELOPT_LFLOW: - output_data("TOGGLE-FLOW-CONTROL"); - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case LFLOW_OFF: - output_data(" OFF"); break; - case LFLOW_ON: - output_data(" ON"); break; - case LFLOW_RESTART_ANY: - output_data(" RESTART-ANY"); break; - case LFLOW_RESTART_XON: - output_data(" RESTART-XON"); break; - default: - output_data(" %d (unknown)", pointer[1]); - } - for (i = 2; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - - case TELOPT_NAWS: - output_data("NAWS"); - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - if (length == 2) { - output_data(" ?%d?", pointer[1]); - break; - } - output_data(" %d %d (%d)", - pointer[1], pointer[2], - (int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2]))); - if (length == 4) { - output_data(" ?%d?", pointer[3]); - break; - } - output_data(" %d %d (%d)", - pointer[3], pointer[4], - (int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4]))); - for (i = 5; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - - case TELOPT_LINEMODE: - output_data("LINEMODE "); - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case WILL: - output_data("WILL "); - goto common; - case WONT: - output_data("WONT "); - goto common; - case DO: - output_data("DO "); - goto common; - case DONT: - output_data("DONT "); - common: - if (length < 3) { - output_data("(no option??\?)"); - break; - } - switch (pointer[2]) { - case LM_FORWARDMASK: - output_data("Forward Mask"); - for (i = 3; i < length; i++) { - output_data(" %x", pointer[i]); - } - break; - default: - output_data("%d (unknown)", pointer[2]); - for (i = 3; i < length; i++) { - output_data(" %d", pointer[i]); - } - break; - } - break; - - case LM_SLC: - output_data("SLC"); - for (i = 2; i < length - 2; i += 3) { - if (SLC_NAME_OK(pointer[i+SLC_FUNC])) - output_data(" %s", SLC_NAME(pointer[i+SLC_FUNC])); - else - output_data(" %d", pointer[i+SLC_FUNC]); - switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) { - case SLC_NOSUPPORT: - output_data(" NOSUPPORT"); break; - case SLC_CANTCHANGE: - output_data(" CANTCHANGE"); break; - case SLC_VARIABLE: - output_data(" VARIABLE"); break; - case SLC_DEFAULT: - output_data(" DEFAULT"); break; - } - output_data("%s%s%s", - pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "", - pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "", - pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : ""); - if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN| - SLC_FLUSHOUT| SLC_LEVELBITS)) { - output_data("(0x%x)", pointer[i+SLC_FLAGS]); - } - output_data(" %d;", pointer[i+SLC_VALUE]); - if ((pointer[i+SLC_VALUE] == IAC) && - (pointer[i+SLC_VALUE+1] == IAC)) - i++; - } - for (; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - - case LM_MODE: - output_data("MODE "); - if (length < 3) { - output_data("(no mode??\?)"); - break; - } - { - char tbuf[32]; - sprintf(tbuf, "%s%s%s%s%s", - pointer[2]&MODE_EDIT ? "|EDIT" : "", - pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "", - pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "", - pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "", - pointer[2]&MODE_ACK ? "|ACK" : ""); - output_data("%s", tbuf[1] ? &tbuf[1] : "0"); - } - if (pointer[2]&~(MODE_EDIT|MODE_TRAPSIG|MODE_ACK)) { - output_data(" (0x%x)", pointer[2]); - } - for (i = 3; i < length; i++) { - output_data(" ?0x%x?", pointer[i]); - } - break; - default: - output_data("%d (unknown)", pointer[1]); - for (i = 2; i < length; i++) { - output_data(" %d", pointer[i]); - } - } - break; - - case TELOPT_STATUS: { - const char *cp; - int j, k; - - output_data("STATUS"); - - switch (pointer[1]) { - default: - if (pointer[1] == TELQUAL_SEND) - output_data(" SEND"); - else - output_data(" %d (unknown)", pointer[1]); - for (i = 2; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - case TELQUAL_IS: - output_data(" IS\r\n"); - - for (i = 2; i < length; i++) { - switch(pointer[i]) { - case DO: cp = "DO"; goto common2; - case DONT: cp = "DONT"; goto common2; - case WILL: cp = "WILL"; goto common2; - case WONT: cp = "WONT"; goto common2; - common2: - i++; - if (TELOPT_OK(pointer[i])) - output_data(" %s %s", cp, TELOPT(pointer[i])); - else - output_data(" %s %d", cp, pointer[i]); - - output_data("\r\n"); - break; - - case SB: - output_data(" SB "); - i++; - j = k = i; - while (j < length) { - if (pointer[j] == SE) { - if (j+1 == length) - break; - if (pointer[j+1] == SE) - j++; - else - break; - } - pointer[k++] = pointer[j++]; - } - printsub(0, &pointer[i], k - i); - if (i < length) { - output_data(" SE"); - i = j; - } else - i = j - 1; - - output_data("\r\n"); - - break; - - default: - output_data(" %d", pointer[i]); - break; - } - } - break; - } - break; - } - - case TELOPT_XDISPLOC: - output_data("X-DISPLAY-LOCATION "); - switch (pointer[1]) { - case TELQUAL_IS: - output_data("IS \"%.*s\"", length-2, (char *)pointer+2); - break; - case TELQUAL_SEND: - output_data("SEND"); - break; - default: - output_data("- unknown qualifier %d (0x%x).", - pointer[1], pointer[1]); - } - break; - - case TELOPT_NEW_ENVIRON: - output_data("NEW-ENVIRON "); - goto env_common1; - case TELOPT_OLD_ENVIRON: - output_data("OLD-ENVIRON"); - env_common1: - switch (pointer[1]) { - case TELQUAL_IS: - output_data("IS "); - goto env_common; - case TELQUAL_SEND: - output_data("SEND "); - goto env_common; - case TELQUAL_INFO: - output_data("INFO "); - env_common: - { - int noquote = 2; - for (i = 2; i < length; i++ ) { - switch (pointer[i]) { - case NEW_ENV_VAR: - output_data("\" VAR " + noquote); - noquote = 2; - break; - - case NEW_ENV_VALUE: - output_data("\" VALUE " + noquote); - noquote = 2; - break; - - case ENV_ESC: - output_data("\" ESC " + noquote); - noquote = 2; - break; - - case ENV_USERVAR: - output_data("\" USERVAR " + noquote); - noquote = 2; - break; - - default: - if (isprint(pointer[i]) && pointer[i] != '"') { - if (noquote) { - output_data("\""); - noquote = 0; - } - output_data("%c", pointer[i]); - } else { - output_data("\" %03o " + noquote, - pointer[i]); - noquote = 2; - } - break; - } - } - if (!noquote) - output_data("\""); - break; - } - } - break; - -#ifdef AUTHENTICATION - case TELOPT_AUTHENTICATION: - output_data("AUTHENTICATION"); - - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case TELQUAL_REPLY: - case TELQUAL_IS: - output_data(" %s ", (pointer[1] == TELQUAL_IS) ? - "IS" : "REPLY"); - if (AUTHTYPE_NAME_OK(pointer[2])) - output_data("%s ", AUTHTYPE_NAME(pointer[2])); - else - output_data("%d ", pointer[2]); - if (length < 3) { - output_data("(partial suboption??\?)"); - break; - } - output_data("%s|%s", - ((pointer[3] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? - "CLIENT" : "SERVER", - ((pointer[3] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? - "MUTUAL" : "ONE-WAY"); - - { - char buf[512]; - auth_printsub(&pointer[1], length - 1, buf, sizeof(buf)); - output_data("%s", buf); - } - break; - - case TELQUAL_SEND: - i = 2; - output_data(" SEND "); - while (i < length) { - if (AUTHTYPE_NAME_OK(pointer[i])) - output_data("%s ", AUTHTYPE_NAME(pointer[i])); - else - output_data("%d ", pointer[i]); - if (++i >= length) { - output_data("(partial suboption??\?)"); - break; - } - output_data("%s|%s ", - ((pointer[i] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? - "CLIENT" : "SERVER", - ((pointer[i] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? - "MUTUAL" : "ONE-WAY"); - ++i; - } - break; - - case TELQUAL_NAME: - output_data(" NAME \"%.*s\"", length - 2, pointer + 2); - break; - - default: - for (i = 2; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - } - break; -#endif - -#ifdef ENCRYPTION - case TELOPT_ENCRYPT: - output_data("ENCRYPT"); - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case ENCRYPT_START: - output_data(" START"); - break; - - case ENCRYPT_END: - output_data(" END"); - break; - - case ENCRYPT_REQSTART: - output_data(" REQUEST-START"); - break; - - case ENCRYPT_REQEND: - output_data(" REQUEST-END"); - break; - - case ENCRYPT_IS: - case ENCRYPT_REPLY: - output_data(" %s ", (pointer[1] == ENCRYPT_IS) ? - "IS" : "REPLY"); - if (length < 3) { - output_data(" (partial suboption??\?)"); - break; - } - if (ENCTYPE_NAME_OK(pointer[2])) - output_data("%s ", ENCTYPE_NAME(pointer[2])); - else - output_data(" %d (unknown)", pointer[2]); - - { - char buf[512]; - encrypt_printsub(&pointer[1], length - 1, buf, sizeof(buf)); - output_data("%s", buf); - } - break; - - case ENCRYPT_SUPPORT: - i = 2; - output_data(" SUPPORT "); - while (i < length) { - if (ENCTYPE_NAME_OK(pointer[i])) - output_data("%s ", ENCTYPE_NAME(pointer[i])); - else - output_data("%d ", pointer[i]); - i++; - } - break; - - case ENCRYPT_ENC_KEYID: - output_data(" ENC_KEYID"); - goto encommon; - - case ENCRYPT_DEC_KEYID: - output_data(" DEC_KEYID"); - goto encommon; - - default: - output_data(" %d (unknown)", pointer[1]); - encommon: - for (i = 2; i < length; i++) { - output_data(" %d", pointer[i]); - } - break; - } - break; -#endif /* ENCRYPTION */ - - default: - if (TELOPT_OK(pointer[0])) - output_data("%s (unknown)", TELOPT(pointer[0])); - else - output_data("%d (unknown)", pointer[i]); - for (i = 1; i < length; i++) { - output_data(" %d", pointer[i]); - } - break; - } - output_data("\r\n"); -} - -/* - * Dump a data buffer in hex and ascii to the output data stream. - */ -void -printdata(const char *tag, char *ptr, int cnt) -{ - int i; - char xbuf[30]; - - while (cnt) { - /* flush net output buffer if no room for new data) */ - if ((&netobuf[BUFSIZ] - nfrontp) < 80) { - netflush(); - } - - /* add a line of output */ - output_data("%s: ", tag); - for (i = 0; i < 20 && cnt; i++) { - output_data("%02x", *ptr); - if (isprint(*ptr)) { - xbuf[i] = *ptr; - } else { - xbuf[i] = '.'; - } - if (i % 2) { - output_data(" "); - } - cnt--; - ptr++; - } - xbuf[i] = '\0'; - output_data(" %s\r\n", xbuf ); - } -} -#endif /* DIAGNOSTICS */ diff --git a/kerberos5/Makefile b/kerberos5/Makefile index 3681fbd..2bdbd25 100644 --- a/kerberos5/Makefile +++ b/kerberos5/Makefile @@ -3,7 +3,8 @@ SUBDIR= doc lib libexec usr.bin usr.sbin # These are the programs which depend on Kerberos. -KPROGS= lib/libpam secure/lib/libssh secure/usr.bin/ssh secure/usr.sbin/sshd +KPROGS= lib/libpam \ + secure/lib/libssh secure/usr.bin/ssh secure/usr.sbin/sshd # This target is used to rebuild these programs WITH Kerberos. kerberize: diff --git a/kerberos5/Makefile.inc b/kerberos5/Makefile.inc index 111f943..d4e46cb 100644 --- a/kerberos5/Makefile.inc +++ b/kerberos5/Makefile.inc @@ -7,7 +7,6 @@ NOLINT= true KRB5DIR= ${.CURDIR}/../../../crypto/heimdal ROKENDIR= ${.CURDIR}/../../lib/libroken -TELNETDIR= ${.CURDIR}/../../../crypto/telnet CFLAGS+=-I${INCLUDEOBJDIR} -DHAVE_CONFIG_H @@ -62,12 +61,6 @@ LIBSL= ${.OBJDIR}/../../lib/libsl/libsl.a LIBSL= ${.CURDIR}/../../lib/libsl/libsl.a .endif -.if exists(${.OBJDIR}/../../lib/libtelnet) -LIBTELNET= ${.OBJDIR}/../../lib/libtelnet/libtelnet.a -.else -LIBTELNET= ${.CURDIR}/../../lib/libtelnet/libtelnet.a -.endif - COMPILE_ET= compile_et .ORDER: asn1_err.c asn1_err.h diff --git a/kerberos5/lib/Makefile b/kerberos5/lib/Makefile index f94bb0a..7223a5d 100644 --- a/kerberos5/lib/Makefile +++ b/kerberos5/lib/Makefile @@ -1,5 +1,5 @@ # $FreeBSD$ -SUBDIR= libroken libvers libasn1 libhdb libkrb5 libkadm5clnt libkadm5srv libsl libgssapi libtelnet +SUBDIR= libroken libvers libasn1 libhdb libkrb5 libkadm5clnt libkadm5srv libsl libgssapi .include <bsd.subdir.mk> diff --git a/kerberos5/lib/libtelnet/Makefile b/kerberos5/lib/libtelnet/Makefile deleted file mode 100644 index 223df03..0000000 --- a/kerberos5/lib/libtelnet/Makefile +++ /dev/null @@ -1,34 +0,0 @@ -# $FreeBSD$ - -LIB= telnet - -INTERNALLIB= yes - -SRCS= genget.c getent.c misc.c encrypt.c auth.c \ - enc_des.c sra.c pk.c -SRCS+= kerberos5.c - -#WARNS?= 2 - -CFLAGS+= -DENCRYPTION -DAUTHENTICATION -DSRA -I${TELNETDIR} -CFLAGS+= -DKRB5 -I${KRB5DIR}/lib/krb5 -I${KRB5OBJDIR} -I${ASN1OBJDIR} -CFLAGS+= -DFORWARD -Dnet_write=telnet_net_write - -INCS= ${TELNETDIR}/arpa/telnet.h -INCSDIR= ${INCLUDEDIR}/arpa - -.include <bsd.lib.mk> - -.PATH: ${TELNETDIR}/libtelnet - -# -# Remove obsolete shared libraries, if any. We don't bother moving them -# to /usr/lib/compat, since they were only used by telnet, telnetd and -# tn3270. -# -beforeinstall: __remove-stale-libs -__remove-stale-libs: .PHONY -.if exists(${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0) - -chflags noschg ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0 - rm -f ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0 -.endif diff --git a/kerberos5/libexec/Makefile b/kerberos5/libexec/Makefile index b81f769..adaa8cd 100644 --- a/kerberos5/libexec/Makefile +++ b/kerberos5/libexec/Makefile @@ -1,5 +1,5 @@ # $FreeBSD$ -SUBDIR= ipropd-master ipropd-slave hpropd kadmind kdc kpasswdd telnetd +SUBDIR= ipropd-master ipropd-slave hpropd kadmind kdc kpasswdd .include <bsd.subdir.mk> diff --git a/kerberos5/libexec/telnetd/Makefile b/kerberos5/libexec/telnetd/Makefile deleted file mode 100644 index 9bf0356..0000000 --- a/kerberos5/libexec/telnetd/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -# $FreeBSD$ - -# Do not define -DKLUDGELINEMODE, as it does not interact well with many -# telnet implementations. - -PROG= telnetd -MAN= telnetd.8 - -SRCS= global.c slc.c state.c sys_term.c telnetd.c \ - termstat.c utility.c authenc.c - -CFLAGS+= -DLINEMODE -DUSE_TERMIO -DDIAGNOSTICS -DOLD_ENVIRON \ - -DENV_HACK -DAUTHENTICATION -DENCRYPTION \ - -I${TELNETDIR} -DINET6 -CFLAGS+= -DKRB5 -DFORWARD -Dnet_write=telnet_net_write - -WARNS?= 2 - -DPADD= ${LIBUTIL} ${LIBTERMCAP} ${LIBTELNET} ${LIBMP} ${LIBCRYPTO} \ - ${LIBKRB5} ${LIBASN1} ${LIBROKEN} ${LIBCOM_ERR} \ - ${LIBCRYPT} ${LIBPAM} -LDADD= -lutil -ltermcap ${LIBTELNET} -lmp -lcrypto \ - -lkrb5 -lasn1 -lroken -lcom_err \ - -lcrypt ${MINUSLPAM} - -.include <bsd.prog.mk> - -.PATH: ${TELNETDIR}/telnetd diff --git a/kerberos5/usr.bin/Makefile b/kerberos5/usr.bin/Makefile index 89c7503..86dea8a 100644 --- a/kerberos5/usr.bin/Makefile +++ b/kerberos5/usr.bin/Makefile @@ -1,5 +1,5 @@ # $FreeBSD$ -SUBDIR= kadmin kdestroy kinit klist kpasswd ksu krb5-config telnet +SUBDIR= kadmin kdestroy kinit klist kpasswd ksu krb5-config .include <bsd.subdir.mk> diff --git a/kerberos5/usr.bin/telnet/Makefile b/kerberos5/usr.bin/telnet/Makefile deleted file mode 100644 index 329283b..0000000 --- a/kerberos5/usr.bin/telnet/Makefile +++ /dev/null @@ -1,25 +0,0 @@ -# $FreeBSD$ - -PROG= telnet - -SRCS= authenc.c commands.c main.c network.c ring.c sys_bsd.c \ - telnet.c terminal.c utilities.c - -CFLAGS+= -DKLUDGELINEMODE -DUSE_TERMIO -DENV_HACK -DOPIE \ - -DENCRYPTION -DAUTHENTICATION -DIPSEC -DINET6 \ - -I${TELNETDIR} -I${TELNETDIR}/libtelnet/ - -CFLAGS+= -DKRB5 -DFORWARD -Dnet_write=telnet_net_write - -WARNS?= 2 - -DPADD= ${LIBTERMCAP} ${LIBTELNET} ${LIBMP} \ - ${LIBKRB5} ${LIBASN1} ${LIBCOM_ERR} ${LIBROKEN} \ - ${LIBCRYPTO} ${LIBCRYPT} ${LIBIPSEC} ${LIBPAM} -LDADD= -ltermcap ${LIBTELNET} -lmp \ - -lkrb5 -lasn1 -lcom_err -lroken \ - -lcrypto -lcrypt -lipsec ${MINUSLPAM} - -.include <bsd.prog.mk> - -.PATH: ${TELNETDIR}/telnet diff --git a/lib/Makefile b/lib/Makefile index ab5ae75..1f6ca1b 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -5,8 +5,8 @@ # built are visible: # # csu must be built before all shared libaries for ELF. -# libcom_err must be built before libkrb and libpam. -# libcrypt must be built before libkrb and libpam. +# libcom_err must be built before libkrb5 and libpam. +# libcrypt must be built before libkrb5 and libpam. # libkvm must be built before libdevstat. # msun must be built before libg++ and libstdc++. # libmd must be built before libatm, libopie, libradius, and libtacplus. @@ -29,7 +29,7 @@ SUBDIR= ${_csu} libcom_err libcrypt libkvm msun libmd \ libipx libisc libmenu ${_libmilter} ${_libmp} ${_libncp} \ libnetgraph libopie libpam libpanel libpcap ${_libpthread} \ ${_libsm} ${_libsmb} ${_libsmdb} ${_libsmutil} \ - libstand ${_libtelnet} ${_libthr} libufs libugidfw libusbhid \ + libstand libtelnet ${_libthr} libufs libugidfw libusbhid \ ${_libvgl} libwrap libxpg4 liby libz .if exists(${.CURDIR}/csu/${MACHINE_ARCH}-elf) @@ -89,12 +89,6 @@ _compat= compat _libdisk= libdisk .endif -.if defined(RELEASEDIR) || \ - (!exists(${.CURDIR}/../secure) && !exists(${.CURDIR}/../kerberos5)) || \ - defined(NOCRYPT) || defined(NO_OPENSSL) || defined(NO_KERBEROS) -_libtelnet= libtelnet -.endif - .if exists(${.CURDIR}/../crypto) && !defined(NOCRYPT) && !defined(NO_OPENSSL) _libmp= libmp .endif diff --git a/lib/libtelnet/Makefile b/lib/libtelnet/Makefile index 542a261..4ee31fb 100644 --- a/lib/libtelnet/Makefile +++ b/lib/libtelnet/Makefile @@ -1,33 +1,29 @@ # From: @(#)Makefile 8.2 (Berkeley) 12/15/93 # $FreeBSD$ +TELNETDIR= ${.CURDIR}/../../contrib/telnet +.PATH: ${TELNETDIR}/libtelnet + LIB= telnet INTERNALLIB= yes SRCS= genget.c getent.c misc.c +CFLAGS+= -I${TELNETDIR} WARNS?= 2 -unifdef: - -cd ${.CURDIR} ; \ - ( for i in *.[ch] ; do \ - unifdef -UAUTHENTICATION -UENCRYPTION \ - ${.CURDIR}/../../crypto/telnet/libtelnet/$$i \ - > ${.CURDIR}/$$i ; \ - echo $$i ; \ - done ) +.if !defined(NO_CRYPTO) +SRCS+= encrypt.c auth.c enc_des.c sra.c pk.c +CFLAGS+= -DENCRYPTION -DAUTHENTICATION -DSRA +.if !defined(NO_KERBEROS) +SRCS+= kerberos5.c +CFLAGS+= -DKRB5 -I${KRB5DIR}/lib/krb5 -I${KRB5OBJDIR} -I${ASN1OBJDIR} +CFLAGS+= -DFORWARD -Dnet_write=telnet_net_write +.endif +.endif + +INCS= ${TELNETDIR}/arpa/telnet.h +INCSDIR= ${INCLUDEDIR}/arpa .include <bsd.lib.mk> - -# -# Remove obsolete shared libraries, if any. We don't bother moving them -# to /usr/lib/compat, since they were only used by telnet, telnetd and -# tn3270. -# -beforeinstall: __remove-stale-libs -__remove-stale-libs: .PHONY -.if exists(${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0) - -chflags noschg ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0 - rm -f ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0 -.endif diff --git a/lib/libtelnet/genget.c b/lib/libtelnet/genget.c deleted file mode 100644 index e24bb44..0000000 --- a/lib/libtelnet/genget.c +++ /dev/null @@ -1,107 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -#if 0 -static const char sccsid[] = "@(#)genget.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif /* not lint */ - - -#include <ctype.h> - -#include "misc-proto.h" - -#define LOWER(x) (isupper(x) ? tolower(x) : (x)) -/* - * The prefix function returns 0 if *s1 is not a prefix - * of *s2. If *s1 exactly matches *s2, the negative of - * the length is returned. If *s1 is a prefix of *s2, - * the length of *s1 is returned. - */ -int -isprefix(char *s1, const char *s2) -{ - char *os1; - char c1, c2; - - if (*s1 == '\0') - return(-1); - os1 = s1; - c1 = *s1; - c2 = *s2; - while (LOWER(c1) == LOWER(c2)) { - if (c1 == '\0') - break; - c1 = *++s1; - c2 = *++s2; - } - return(*s1 ? 0 : (*s2 ? (s1 - os1) : (os1 - s1))); -} - -static char *ambiguous; /* special return value for command routines */ - -char ** -genget(char *name, char **table, int stlen) -{ - char **c, **found; - int n; - - if (name == 0) - return 0; - - found = 0; - for (c = table; *c != 0; c = (char **)((char *)c + stlen)) { - if ((n = isprefix(name, *c)) == 0) - continue; - if (n < 0) /* exact match */ - return(c); - if (found) - return(&ambiguous); - found = c; - } - return(found); -} - -/* - * Function call version of Ambiguous() - */ -int -Ambiguous(char **s) -{ - return(s == &ambiguous); -} diff --git a/lib/libtelnet/getent.c b/lib/libtelnet/getent.c deleted file mode 100644 index d6e8d9c..0000000 --- a/lib/libtelnet/getent.c +++ /dev/null @@ -1,76 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)getent.c 8.2 (Berkeley) 12/15/93"; -#endif -#endif /* not lint */ - -#include <stdlib.h> -#include <string.h> - -#include "misc-proto.h" - -static char *area; -static char gettytab[] = "/etc/gettytab"; - -/*ARGSUSED*/ -int -getent(char *cp __unused, const char *name) -{ - int retval; - char *tempnam, *dba[2] = { gettytab, NULL }; - - tempnam = strdup(name); - retval = cgetent(&area, dba, tempnam) == 0 ? 1 : 0; - free(tempnam); - return(retval); -} - -/*ARGSUSED*/ -char * -Getstr(const char *id, char **cpp __unused) -{ - int retval; - char *answer, *tempid; - - tempid = strdup(id); - retval = cgetstr(area, tempid, &answer); - free(tempid); - return((retval > 0) ? answer : NULL); -} diff --git a/lib/libtelnet/misc-proto.h b/lib/libtelnet/misc-proto.h deleted file mode 100644 index aea753c..0000000 --- a/lib/libtelnet/misc-proto.h +++ /dev/null @@ -1,80 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)misc-proto.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -/* - * Copyright (C) 1990 by the Massachusetts Institute of Technology - * - * Export of this software from the United States of America is assumed - * to require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - */ - -#ifndef __MISC_PROTO__ -#define __MISC_PROTO__ - -void auth_encrypt_init(char *, char *, const char *, int); -void auth_encrypt_connect(int); -void printd(const unsigned char *, int); - -int isprefix(char *, const char *); -char **genget(char *, char **, int); -int Ambiguous(char **); - -int getent(char *, const char *); -char *Getstr(const char *, char **); - -/* - * These functions are imported from the application - */ -int net_write(unsigned char *, int); -void net_encrypt(void); -int telnet_spin(void); -char *telnet_getenv(char *); -char *telnet_gets(const char *, char *, int, int); -void printsub(char, unsigned char *, int); -#endif diff --git a/lib/libtelnet/misc.c b/lib/libtelnet/misc.c deleted file mode 100644 index 981208e..0000000 --- a/lib/libtelnet/misc.c +++ /dev/null @@ -1,78 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> - -__FBSDID("$FreeBSD$"); - -#ifndef lint -#if 0 -static const char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/4/93"; -#endif -#endif /* not lint */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "misc.h" - -char *RemoteHostName; -char *LocalHostName; -char *UserNameRequested = 0; -int ConnectedCount = 0; - -#define undef1 __unused - -void -auth_encrypt_init(char *local, char *remote, const char *name undef1, int server undef1) -{ - RemoteHostName = remote; - LocalHostName = local; - if (UserNameRequested) { - free(UserNameRequested); - UserNameRequested = 0; - } -} - - -void -printd(const unsigned char *data, int cnt) -{ - if (cnt > 16) - cnt = 16; - while (cnt-- > 0) { - printf(" %02x", *data); - ++data; - } -} diff --git a/lib/libtelnet/misc.h b/lib/libtelnet/misc.h deleted file mode 100644 index 41ffa7f..0000000 --- a/lib/libtelnet/misc.h +++ /dev/null @@ -1,42 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)misc.h 8.1 (Berkeley) 6/4/93 - */ - -extern char *UserNameRequested; -extern char *LocalHostName; -extern char *RemoteHostName; -extern int ConnectedCount; -extern int ReservedPort; - -#include "misc-proto.h" diff --git a/libexec/Makefile b/libexec/Makefile index 9790381..c4c3c13 100644 --- a/libexec/Makefile +++ b/libexec/Makefile @@ -1,7 +1,6 @@ # @(#)Makefile 8.1 (Berkeley) 6/4/93 # $FreeBSD$ -# Present but disabled: kpasswdd SUBDIR= atrun \ bootpd \ comsat \ @@ -26,6 +25,7 @@ SUBDIR= atrun \ save-entropy \ talkd \ tcpd \ + telnetd \ tftpd \ ypxfr @@ -41,13 +41,6 @@ SUBDIR+=named-xfer SUBDIR+=mail.local smrsh .endif -.if defined(RELEASEDIR) || \ - (!exists(${.CURDIR}/../secure) && !exists(${.CURDIR}/../kerberos5)) || \ - defined(NOCRYPT) || defined(NO_OPENSSL) || defined(NO_KERBEROS) -# make release needs both -SUBDIR+=telnetd -.endif - .if defined(WANT_LUKEMFTPD) SUBDIR+=lukemftpd .endif diff --git a/libexec/telnetd/Makefile b/libexec/telnetd/Makefile index 031000d..96d11fe 100644 --- a/libexec/telnetd/Makefile +++ b/libexec/telnetd/Makefile @@ -3,6 +3,9 @@ # Do not define -DKLUDGELINEMODE, as it does not interact well with many # telnet implementations. +TELNETDIR= ${.CURDIR}/../../contrib/telnet +.PATH: ${TELNETDIR}/telnetd + PROG= telnetd MAN= telnetd.8 @@ -11,7 +14,7 @@ SRCS= global.c slc.c state.c sys_term.c telnetd.c \ CFLAGS+= -DLINEMODE -DUSE_TERMIO -DDIAGNOSTICS -DOLD_ENVIRON \ -DENV_HACK \ - -I${.CURDIR}/../../lib -DINET6 + -I${TELNETDIR} -DINET6 WARNS?= 2 WFORMAT?= 0 @@ -25,13 +28,16 @@ LIBTELNET= ${.CURDIR}/../../lib/libtelnet/libtelnet.a DPADD= ${LIBUTIL} ${LIBTERMCAP} ${LIBTELNET} LDADD= -lutil -ltermcap ${LIBTELNET} -unifdef: - -cd ${.CURDIR} ; \ - ( for i in *.[ch] ; do \ - unifdef -UAUTHENTICATION -UENCRYPTION \ - ${.CURDIR}/../../crypto/telnet/telnetd/$$i \ - > ${.CURDIR}/$$i ; \ - echo $$i ; \ - done ) +.if !defined(NO_CRYPTO) +SRCS+= authenc.c +CFLAGS+= -DAUTHENTICATION -DENCRYPTION +DPADD+= ${LIBMP} ${LIBCRYPTO} ${LIBCRYPT} ${LIBPAM} +LDADD+= -lmp -lcrypto -lcrypt ${MINUSLPAM} +.if !defined(NO_KERBEROS) +CFLAGS+= -DKRB5 -DFORWARD -Dnet_write=telnet_net_write +DPADD+= ${LIBKRB5} ${LIBASN1} ${LIBROKEN} ${LIBCOM_ERR} +LDADD+= -lkrb5 -lasn1 -lroken -lcom_err +.endif +.endif .include <bsd.prog.mk> diff --git a/libexec/telnetd/defs.h b/libexec/telnetd/defs.h deleted file mode 100644 index d727f36..0000000 --- a/libexec/telnetd/defs.h +++ /dev/null @@ -1,258 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)defs.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -/* - * Telnet server defines - */ -#include <sys/types.h> -#include <sys/param.h> - -#ifndef BSD -# define BSD 43 -#endif - -#if defined(PRINTOPTIONS) && defined(DIAGNOSTICS) -#define TELOPTS -#define TELCMDS -#define SLC_NAMES -#endif - -#if defined(SYSV_TERMIO) && !defined(USE_TERMIO) -# define USE_TERMIO -#endif - -#include <sys/socket.h> -#include <sys/wait.h> -#include <fcntl.h> -#include <sys/file.h> -#include <sys/stat.h> -#include <sys/time.h> -#ifndef FILIO_H -#include <sys/ioctl.h> -#else -#include <sys/filio.h> -#endif - -#include <netinet/in.h> - -#include <arpa/telnet.h> - -#include <stdio.h> -#ifdef __STDC__ -#include <stdlib.h> -#endif -#include <signal.h> -#include <errno.h> -#include <netdb.h> -#include <syslog.h> -#ifndef LOG_DAEMON -#define LOG_DAEMON 0 -#endif -#ifndef LOG_ODELAY -#define LOG_ODELAY 0 -#endif -#include <ctype.h> -#ifndef NO_STRING_H -#include <string.h> -#else -#include <strings.h> -#endif - -#ifndef USE_TERMIO -#include <sgtty.h> -#else -# ifdef SYSV_TERMIO -# include <termio.h> -# else -# include <termios.h> -# endif -#endif -#if !defined(USE_TERMIO) || defined(NO_CC_T) -typedef unsigned char cc_t; -#endif - -#ifdef __STDC__ -#include <unistd.h> -#endif - -#ifndef _POSIX_VDISABLE -# ifdef VDISABLE -# define _POSIX_VDISABLE VDISABLE -# else -# define _POSIX_VDISABLE ((unsigned char)'\377') -# endif -#endif - -#if !defined(TIOCSCTTY) && defined(TCSETCTTY) -# define TIOCSCTTY TCSETCTTY -#endif - -#ifndef FD_SET -#ifndef HAVE_fd_set -typedef struct fd_set { int fds_bits[1]; } fd_set; -#endif - -#define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n))) -#define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n))) -#define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n))) -#define FD_ZERO(p) ((p)->fds_bits[0] = 0) -#endif /* FD_SET */ - -/* - * I/O data buffers defines - */ -#define NETSLOP 64 - -#define NIACCUM(c) { *netip++ = c; \ - ncc++; \ - } - -/* clock manipulations */ -#define settimer(x) (clocks.x = ++clocks.system) -#define sequenceIs(x,y) (clocks.x < clocks.y) - -/* - * Linemode support states, in decreasing order of importance - */ -#define REAL_LINEMODE 0x04 -#define KLUDGE_OK 0x03 -#define NO_AUTOKLUDGE 0x02 -#define KLUDGE_LINEMODE 0x01 -#define NO_LINEMODE 0x00 - -/* - * Structures of information for each special character function. - */ -typedef struct { - unsigned char flag; /* the flags for this function */ - cc_t val; /* the value of the special character */ -} slcent, *Slcent; - -typedef struct { - slcent defset; /* the default settings */ - slcent current; /* the current settings */ - cc_t *sptr; /* a pointer to the char in */ - /* system data structures */ -} slcfun, *Slcfun; - -#ifdef DIAGNOSTICS -/* - * Diagnostics capabilities - */ -#define TD_REPORT 0x01 /* Report operations to client */ -#define TD_EXERCISE 0x02 /* Exercise client's implementation */ -#define TD_NETDATA 0x04 /* Display received data stream */ -#define TD_PTYDATA 0x08 /* Display data passed to pty */ -#define TD_OPTIONS 0x10 /* Report just telnet options */ -#endif /* DIAGNOSTICS */ - -/* - * We keep track of each side of the option negotiation. - */ - -#define MY_STATE_WILL 0x01 -#define MY_WANT_STATE_WILL 0x02 -#define MY_STATE_DO 0x04 -#define MY_WANT_STATE_DO 0x08 - -/* - * Macros to check the current state of things - */ - -#define my_state_is_do(opt) (options[opt]&MY_STATE_DO) -#define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) -#define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) -#define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) - -#define my_state_is_dont(opt) (!my_state_is_do(opt)) -#define my_state_is_wont(opt) (!my_state_is_will(opt)) -#define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) -#define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) - -#define set_my_state_do(opt) (options[opt] |= MY_STATE_DO) -#define set_my_state_will(opt) (options[opt] |= MY_STATE_WILL) -#define set_my_want_state_do(opt) (options[opt] |= MY_WANT_STATE_DO) -#define set_my_want_state_will(opt) (options[opt] |= MY_WANT_STATE_WILL) - -#define set_my_state_dont(opt) (options[opt] &= ~MY_STATE_DO) -#define set_my_state_wont(opt) (options[opt] &= ~MY_STATE_WILL) -#define set_my_want_state_dont(opt) (options[opt] &= ~MY_WANT_STATE_DO) -#define set_my_want_state_wont(opt) (options[opt] &= ~MY_WANT_STATE_WILL) - -/* - * Tricky code here. What we want to know is if the MY_STATE_WILL - * and MY_WANT_STATE_WILL bits have the same value. Since the two - * bits are adjacent, a little arithmatic will show that by adding - * in the lower bit, the upper bit will be set if the two bits were - * different, and clear if they were the same. - */ -#define my_will_wont_is_changing(opt) \ - ((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL) - -#define my_do_dont_is_changing(opt) \ - ((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO) - -/* - * Make everything symetrical - */ - -#define HIS_STATE_WILL MY_STATE_DO -#define HIS_WANT_STATE_WILL MY_WANT_STATE_DO -#define HIS_STATE_DO MY_STATE_WILL -#define HIS_WANT_STATE_DO MY_WANT_STATE_WILL - -#define his_state_is_do my_state_is_will -#define his_state_is_will my_state_is_do -#define his_want_state_is_do my_want_state_is_will -#define his_want_state_is_will my_want_state_is_do - -#define his_state_is_dont my_state_is_wont -#define his_state_is_wont my_state_is_dont -#define his_want_state_is_dont my_want_state_is_wont -#define his_want_state_is_wont my_want_state_is_dont - -#define set_his_state_do set_my_state_will -#define set_his_state_will set_my_state_do -#define set_his_want_state_do set_my_want_state_will -#define set_his_want_state_will set_my_want_state_do - -#define set_his_state_dont set_my_state_wont -#define set_his_state_wont set_my_state_dont -#define set_his_want_state_dont set_my_want_state_wont -#define set_his_want_state_wont set_my_want_state_dont - -#define his_will_wont_is_changing my_do_dont_is_changing -#define his_do_dont_is_changing my_will_wont_is_changing diff --git a/libexec/telnetd/ext.h b/libexec/telnetd/ext.h deleted file mode 100644 index 04aa4a3..0000000 --- a/libexec/telnetd/ext.h +++ /dev/null @@ -1,206 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)ext.h 8.2 (Berkeley) 12/15/93 - * $FreeBSD$ - */ - -/* - * Telnet server variable declarations - */ -extern char options[256]; -extern char do_dont_resp[256]; -extern char will_wont_resp[256]; -extern int linemode; /* linemode on/off */ -#ifdef LINEMODE -extern int uselinemode; /* what linemode to use (on/off) */ -extern int editmode; /* edit modes in use */ -extern int useeditmode; /* edit modes to use */ -extern int alwayslinemode; /* command line option */ -extern int lmodetype; /* Client support for linemode */ -#endif /* LINEMODE */ -extern int flowmode; /* current flow control state */ -extern int restartany; /* restart output on any character state */ -#ifdef DIAGNOSTICS -extern int diagnostic; /* telnet diagnostic capabilities */ -#endif /* DIAGNOSTICS */ -#ifdef BFTPDAEMON -extern int bftpd; /* behave as bftp daemon */ -#endif /* BFTPDAEMON */ - -extern slcfun slctab[NSLC + 1]; /* slc mapping table */ - -char *terminaltype; - -/* - * I/O data buffers, pointers, and counters. - */ -extern char ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp; - -extern char netibuf[BUFSIZ], *netip; - -extern char netobuf[BUFSIZ], *nfrontp, *nbackp; -extern char *neturg; /* one past last bye of urgent data */ - -extern int pcc, ncc; - -extern int pty, net; -extern char line[16]; -extern int SYNCHing; /* we are in TELNET SYNCH mode */ - -extern void - _termstat(void), - add_slc(char, char, cc_t), - check_slc(void), - change_slc(char, char, cc_t), - cleanup(int), - clientstat(int, int, int), - copy_termbuf(char *, size_t), - deferslc(void), - defer_terminit(void), - do_opt_slc(unsigned char *, int), - doeof(void), - dooption(int), - dontoption(int), - edithost(char *, char *), - fatal(int, const char *), - fatalperror(int, const char *), - get_slc_defaults(void), - init_env(void), - init_termbuf(void), - interrupt(void), - localstat(void), - flowstat(void), - netclear(void), - netflush(void), -#ifdef DIAGNOSTICS - printoption(const char *, int), - printdata(const char *, char *, int), - printsub(char, unsigned char *, int), -#endif - process_slc(unsigned char, unsigned char, cc_t), - ptyflush(void), - putchr(int), - putf(char *, char *), - recv_ayt(void), - send_do(int, int), - send_dont(int, int), - send_slc(void), - send_status(void), - send_will(int, int), - send_wont(int, int), - sendbrk(void), - sendsusp(void), - set_termbuf(void), - start_login(char *, int, char *), - start_slc(int), - start_slave(char *, int, char *), - suboption(void), - telrcv(void), - ttloop(void), - tty_binaryin(int), - tty_binaryout(int); - -extern int - end_slc(unsigned char **), - getnpty(void), -#ifndef convex - getpty(int *), -#endif - login_tty(int), - spcset(int, cc_t *, cc_t **), - stilloob(int), - terminit(void), - termstat(void), - tty_flowmode(void), - tty_restartany(void), - tty_isbinaryin(void), - tty_isbinaryout(void), - tty_iscrnl(void), - tty_isecho(void), - tty_isediting(void), - tty_islitecho(void), - tty_isnewmap(void), - tty_israw(void), - tty_issofttab(void), - tty_istrapsig(void), - tty_linemode(void); - -extern void - tty_rspeed(int), - tty_setecho(int), - tty_setedit(int), - tty_setlinemode(int), - tty_setlitecho(int), - tty_setsig(int), - tty_setsofttab(int), - tty_tspeed(int), - willoption(int), - wontoption(int); - -int output_data(const char *, ...) __printflike(1, 2); -void output_datalen(const char *, int); -void startslave(char *, int, char *); - - - -/* - * The following are some clocks used to decide how to interpret - * the relationship between various variables. - */ - -extern struct { - int - system, /* what the current time is */ - echotoggle, /* last time user entered echo character */ - modenegotiated, /* last time operating mode negotiated */ - didnetreceive, /* last time we read data from network */ - ttypesubopt, /* ttype subopt is received */ - tspeedsubopt, /* tspeed subopt is received */ - environsubopt, /* environ subopt is received */ - oenvironsubopt, /* old environ subopt is received */ - xdisplocsubopt, /* xdisploc subopt is received */ - baseline, /* time started to do timed action */ - gotDM; /* when did we last see a data mark */ -} clocks; - -#ifndef DEFAULT_IM -# ifdef ultrix -# define DEFAULT_IM "\r\n\r\nULTRIX (%h) (%t)\r\n\r\r\n\r" -# else -# ifdef __FreeBSD__ -# define DEFAULT_IM "\r\n\r\nFreeBSD (%h) (%t)\r\n\r\r\n\r" -# else -# define DEFAULT_IM "\r\n\r\n4.4 BSD UNIX (%h) (%t)\r\n\r\r\n\r" -# endif -# endif -#endif diff --git a/libexec/telnetd/global.c b/libexec/telnetd/global.c deleted file mode 100644 index 2ed82d0..0000000 --- a/libexec/telnetd/global.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)global.c 8.1 (Berkeley) 6/4/93"; -#endif /* not lint */ -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * Allocate global variables. We do this - * by including the header file that defines - * them all as externs, but first we define - * the keyword "extern" to be nothing, so that - * we will actually allocate the space. - */ - -#include "defs.h" -#define extern -#include "ext.h" diff --git a/libexec/telnetd/pathnames.h b/libexec/telnetd/pathnames.h deleted file mode 100644 index ed8ee88..0000000 --- a/libexec/telnetd/pathnames.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)pathnames.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -#if BSD > 43 - -# include <paths.h> - -# ifndef _PATH_LOGIN -# define _PATH_LOGIN "/usr/bin/login" -# endif - -#else - -# define _PATH_TTY "/dev/tty" -# ifndef _PATH_LOGIN -# define _PATH_LOGIN "/bin/login" -# endif - -#endif - -#ifdef BFTPDAEMON -#define BFTPPATH "/usr/ucb/bftp" -#endif /* BFTPDAEMON */ diff --git a/libexec/telnetd/slc.c b/libexec/telnetd/slc.c deleted file mode 100644 index ad03441..0000000 --- a/libexec/telnetd/slc.c +++ /dev/null @@ -1,484 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)slc.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "telnetd.h" - -#ifdef LINEMODE -/* - * local variables - */ -static unsigned char *def_slcbuf = (unsigned char *)0; -static int def_slclen = 0; -static int slcchange; /* change to slc is requested */ -static unsigned char *slcptr; /* pointer into slc buffer */ -static unsigned char slcbuf[NSLC*6]; /* buffer for slc negotiation */ - -/* - * send_slc - * - * Write out the current special characters to the client. - */ -void -send_slc(void) -{ - int i; - - /* - * Send out list of triplets of special characters - * to client. We only send info on the characters - * that are currently supported. - */ - for (i = 1; i <= NSLC; i++) { - if ((slctab[i].defset.flag & SLC_LEVELBITS) == SLC_NOSUPPORT) - continue; - add_slc((unsigned char)i, slctab[i].current.flag, - slctab[i].current.val); - } - -} /* end of send_slc */ - -/* - * default_slc - * - * Set pty special characters to all the defaults. - */ -static void -default_slc(void) -{ - int i; - - for (i = 1; i <= NSLC; i++) { - slctab[i].current.val = slctab[i].defset.val; - if (slctab[i].current.val == (cc_t)(_POSIX_VDISABLE)) - slctab[i].current.flag = SLC_NOSUPPORT; - else - slctab[i].current.flag = slctab[i].defset.flag; - if (slctab[i].sptr) { - *(slctab[i].sptr) = slctab[i].defset.val; - } - } - slcchange = 1; - -} /* end of default_slc */ -#endif /* LINEMODE */ - -/* - * get_slc_defaults - * - * Initialize the slc mapping table. - */ -void -get_slc_defaults(void) -{ - int i; - - init_termbuf(); - - for (i = 1; i <= NSLC; i++) { - slctab[i].defset.flag = - spcset(i, &slctab[i].defset.val, &slctab[i].sptr); - slctab[i].current.flag = SLC_NOSUPPORT; - slctab[i].current.val = 0; - } - -} /* end of get_slc_defaults */ - -#ifdef LINEMODE -/* - * add_slc - * - * Add an slc triplet to the slc buffer. - */ -void -add_slc(char func, char flag, cc_t val) -{ - - if ((*slcptr++ = (unsigned char)func) == 0xff) - *slcptr++ = 0xff; - - if ((*slcptr++ = (unsigned char)flag) == 0xff) - *slcptr++ = 0xff; - - if ((*slcptr++ = (unsigned char)val) == 0xff) - *slcptr++ = 0xff; - -} /* end of add_slc */ - -/* - * start_slc - * - * Get ready to process incoming slc's and respond to them. - * - * The parameter getit is non-zero if it is necessary to grab a copy - * of the terminal control structures. - */ -void -start_slc(int getit) -{ - - slcchange = 0; - if (getit) - init_termbuf(); - (void) sprintf((char *)slcbuf, "%c%c%c%c", - IAC, SB, TELOPT_LINEMODE, LM_SLC); - slcptr = slcbuf + 4; - -} /* end of start_slc */ - -/* - * end_slc - * - * Finish up the slc negotiation. If something to send, then send it. - */ -int -end_slc(unsigned char **bufp) -{ - int len; - - /* - * If a change has occured, store the new terminal control - * structures back to the terminal driver. - */ - if (slcchange) { - set_termbuf(); - } - - /* - * If the pty state has not yet been fully processed and there is a - * deferred slc request from the client, then do not send any - * sort of slc negotiation now. We will respond to the client's - * request very soon. - */ - if (def_slcbuf && (terminit() == 0)) { - return(0); - } - - if (slcptr > (slcbuf + 4)) { - if (bufp) { - *bufp = &slcbuf[4]; - return(slcptr - slcbuf - 4); - } else { - (void) sprintf((char *)slcptr, "%c%c", IAC, SE); - slcptr += 2; - len = slcptr - slcbuf; - output_datalen(slcbuf, len); - netflush(); /* force it out immediately */ - DIAG(TD_OPTIONS, printsub('>', slcbuf+2, len-2);); - } - } - return (0); - -} /* end of end_slc */ - -/* - * process_slc - * - * Figure out what to do about the client's slc - */ -void -process_slc(unsigned char func, unsigned char flag, cc_t val) -{ - int hislevel, mylevel, ack; - - /* - * Ensure that we know something about this function - */ - if (func > NSLC) { - add_slc(func, SLC_NOSUPPORT, 0); - return; - } - - /* - * Process the special case requests of 0 SLC_DEFAULT 0 - * and 0 SLC_VARIABLE 0. Be a little forgiving here, don't - * worry about whether the value is actually 0 or not. - */ - if (func == 0) { - if ((flag = flag & SLC_LEVELBITS) == SLC_DEFAULT) { - default_slc(); - send_slc(); - } else if (flag == SLC_VARIABLE) { - send_slc(); - } - return; - } - - /* - * Appears to be a function that we know something about. So - * get on with it and see what we know. - */ - - hislevel = flag & SLC_LEVELBITS; - mylevel = slctab[func].current.flag & SLC_LEVELBITS; - ack = flag & SLC_ACK; - /* - * ignore the command if: - * the function value and level are the same as what we already have; - * or the level is the same and the ack bit is set - */ - if (hislevel == mylevel && (val == slctab[func].current.val || ack)) { - return; - } else if (ack) { - /* - * If we get here, we got an ack, but the levels don't match. - * This shouldn't happen. If it does, it is probably because - * we have sent two requests to set a variable without getting - * a response between them, and this is the first response. - * So, ignore it, and wait for the next response. - */ - return; - } else { - change_slc(func, flag, val); - } - -} /* end of process_slc */ - -/* - * change_slc - * - * Process a request to change one of our special characters. - * Compare client's request with what we are capable of supporting. - */ -void -change_slc(char func, char flag, cc_t val) -{ - int hislevel, mylevel; - - hislevel = flag & SLC_LEVELBITS; - mylevel = slctab[(int)func].defset.flag & SLC_LEVELBITS; - /* - * If client is setting a function to NOSUPPORT - * or DEFAULT, then we can easily and directly - * accomodate the request. - */ - if (hislevel == SLC_NOSUPPORT) { - slctab[(int)func].current.flag = flag; - slctab[(int)func].current.val = (cc_t)_POSIX_VDISABLE; - flag |= SLC_ACK; - add_slc(func, flag, val); - return; - } - if (hislevel == SLC_DEFAULT) { - /* - * Special case here. If client tells us to use - * the default on a function we don't support, then - * return NOSUPPORT instead of what we may have as a - * default level of DEFAULT. - */ - if (mylevel == SLC_DEFAULT) { - slctab[(int)func].current.flag = SLC_NOSUPPORT; - } else { - slctab[(int)func].current.flag = slctab[(int)func].defset.flag; - } - slctab[(int)func].current.val = slctab[(int)func].defset.val; - add_slc(func, slctab[(int)func].current.flag, - slctab[(int)func].current.val); - return; - } - - /* - * Client wants us to change to a new value or he - * is telling us that he can't change to our value. - * Some of the slc's we support and can change, - * some we do support but can't change, - * and others we don't support at all. - * If we can change it then we have a pointer to - * the place to put the new value, so change it, - * otherwise, continue the negotiation. - */ - if (slctab[(int)func].sptr) { - /* - * We can change this one. - */ - slctab[(int)func].current.val = val; - *(slctab[(int)func].sptr) = val; - slctab[(int)func].current.flag = flag; - flag |= SLC_ACK; - slcchange = 1; - add_slc(func, flag, val); - } else { - /* - * It is not possible for us to support this - * request as he asks. - * - * If our level is DEFAULT, then just ack whatever was - * sent. - * - * If he can't change and we can't change, - * then degenerate to NOSUPPORT. - * - * Otherwise we send our level back to him, (CANTCHANGE - * or NOSUPPORT) and if CANTCHANGE, send - * our value as well. - */ - if (mylevel == SLC_DEFAULT) { - slctab[(int)func].current.flag = flag; - slctab[(int)func].current.val = val; - flag |= SLC_ACK; - } else if (hislevel == SLC_CANTCHANGE && - mylevel == SLC_CANTCHANGE) { - flag &= ~SLC_LEVELBITS; - flag |= SLC_NOSUPPORT; - slctab[(int)func].current.flag = flag; - } else { - flag &= ~SLC_LEVELBITS; - flag |= mylevel; - slctab[(int)func].current.flag = flag; - if (mylevel == SLC_CANTCHANGE) { - slctab[(int)func].current.val = - slctab[(int)func].defset.val; - val = slctab[(int)func].current.val; - } - } - add_slc(func, flag, val); - } - -} /* end of change_slc */ - -#if defined(USE_TERMIO) && (VEOF == VMIN) -cc_t oldeofc = '\004'; -#endif - -/* - * check_slc - * - * Check the special characters in use and notify the client if any have - * changed. Only those characters that are capable of being changed are - * likely to have changed. If a local change occurs, kick the support level - * and flags up to the defaults. - */ -void -check_slc(void) -{ - int i; - - for (i = 1; i <= NSLC; i++) { -#if defined(USE_TERMIO) && (VEOF == VMIN) - /* - * In a perfect world this would be a neat little - * function. But in this world, we should not notify - * client of changes to the VEOF char when - * ICANON is off, because it is not representing - * a special character. - */ - if (i == SLC_EOF) { - if (!tty_isediting()) - continue; - else if (slctab[i].sptr) - oldeofc = *(slctab[i].sptr); - } -#endif /* defined(USE_TERMIO) && defined(SYSV_TERMIO) */ - if (slctab[i].sptr && - (*(slctab[i].sptr) != slctab[i].current.val)) { - slctab[i].current.val = *(slctab[i].sptr); - if (*(slctab[i].sptr) == (cc_t)_POSIX_VDISABLE) - slctab[i].current.flag = SLC_NOSUPPORT; - else - slctab[i].current.flag = slctab[i].defset.flag; - add_slc((unsigned char)i, slctab[i].current.flag, - slctab[i].current.val); - } - } -} /* check_slc */ - -/* - * do_opt_slc - * - * Process an slc option buffer. Defer processing of incoming slc's - * until after the terminal state has been processed. Save the first slc - * request that comes along, but discard all others. - * - * ptr points to the beginning of the buffer, len is the length. - */ -void -do_opt_slc(unsigned char *ptr, int len) -{ - unsigned char func, flag; - cc_t val; - unsigned char *end = ptr + len; - - if (terminit()) { /* go ahead */ - while (ptr < end) { - func = *ptr++; - if (ptr >= end) break; - flag = *ptr++; - if (ptr >= end) break; - val = (cc_t)*ptr++; - - process_slc(func, flag, val); - - } - } else { - /* - * save this slc buffer if it is the first, otherwise dump - * it. - */ - if (def_slcbuf == (unsigned char *)0) { - def_slclen = len; - def_slcbuf = (unsigned char *)malloc((unsigned)len); - if (def_slcbuf == (unsigned char *)0) - return; /* too bad */ - memmove(def_slcbuf, ptr, len); - } - } - -} /* end of do_opt_slc */ - -/* - * deferslc - * - * Do slc stuff that was deferred. - */ -void -deferslc(void) -{ - if (def_slcbuf) { - start_slc(1); - do_opt_slc(def_slcbuf, def_slclen); - (void) end_slc(0); - free(def_slcbuf); - def_slcbuf = (unsigned char *)0; - def_slclen = 0; - } - -} /* end of deferslc */ - -#endif /* LINEMODE */ diff --git a/libexec/telnetd/state.c b/libexec/telnetd/state.c deleted file mode 100644 index 7b733e4..0000000 --- a/libexec/telnetd/state.c +++ /dev/null @@ -1,1512 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)state.c 8.5 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <stdarg.h> -#include "telnetd.h" - -unsigned char doopt[] = { IAC, DO, '%', 'c', 0 }; -unsigned char dont[] = { IAC, DONT, '%', 'c', 0 }; -unsigned char will[] = { IAC, WILL, '%', 'c', 0 }; -unsigned char wont[] = { IAC, WONT, '%', 'c', 0 }; -int not42 = 1; - -/* - * Buffer for sub-options, and macros - * for suboptions buffer manipulations - */ -unsigned char subbuffer[512], *subpointer= subbuffer, *subend= subbuffer; - -#define SB_CLEAR() subpointer = subbuffer -#define SB_TERM() { subend = subpointer; SB_CLEAR(); } -#define SB_ACCUM(c) if (subpointer < (subbuffer+sizeof subbuffer)) { \ - *subpointer++ = (c); \ - } -#define SB_GET() ((*subpointer++)&0xff) -#define SB_EOF() (subpointer >= subend) -#define SB_LEN() (subend - subpointer) - -#ifdef ENV_HACK -unsigned char *subsave; -#define SB_SAVE() subsave = subpointer; -#define SB_RESTORE() subpointer = subsave; -#endif - - -/* - * State for recv fsm - */ -#define TS_DATA 0 /* base state */ -#define TS_IAC 1 /* look for double IAC's */ -#define TS_CR 2 /* CR-LF ->'s CR */ -#define TS_SB 3 /* throw away begin's... */ -#define TS_SE 4 /* ...end's (suboption negotiation) */ -#define TS_WILL 5 /* will option negotiation */ -#define TS_WONT 6 /* wont " */ -#define TS_DO 7 /* do " */ -#define TS_DONT 8 /* dont " */ - -static void doclientstat(void); - -void -telrcv(void) -{ - int c; - static int state = TS_DATA; - - while (ncc > 0) { - if ((&ptyobuf[BUFSIZ] - pfrontp) < 2) - break; - c = *netip++ & 0377, ncc--; - switch (state) { - - case TS_CR: - state = TS_DATA; - /* Strip off \n or \0 after a \r */ - if ((c == 0) || (c == '\n')) { - break; - } - /* FALLTHROUGH */ - - case TS_DATA: - if (c == IAC) { - state = TS_IAC; - break; - } - /* - * We now map \r\n ==> \r for pragmatic reasons. - * Many client implementations send \r\n when - * the user hits the CarriageReturn key. - * - * We USED to map \r\n ==> \n, since \r\n says - * that we want to be in column 1 of the next - * printable line, and \n is the standard - * unix way of saying that (\r is only good - * if CRMOD is set, which it normally is). - */ - if ((c == '\r') && his_state_is_wont(TELOPT_BINARY)) { - int nc = *netip; -#ifdef LINEMODE - /* - * If we are operating in linemode, - * convert to local end-of-line. - */ - if (linemode && (ncc > 0) && (('\n' == nc) || - ((0 == nc) && tty_iscrnl())) ) { - netip++; ncc--; - c = '\n'; - } else -#endif - { - state = TS_CR; - } - } - *pfrontp++ = c; - break; - - case TS_IAC: -gotiac: switch (c) { - - /* - * Send the process on the pty side an - * interrupt. Do this with a NULL or - * interrupt char; depending on the tty mode. - */ - case IP: - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - interrupt(); - break; - - case BREAK: - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - sendbrk(); - break; - - /* - * Are You There? - */ - case AYT: - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - recv_ayt(); - break; - - /* - * Abort Output - */ - case AO: - { - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - ptyflush(); /* half-hearted */ - init_termbuf(); - - if (slctab[SLC_AO].sptr && - *slctab[SLC_AO].sptr != (cc_t)(_POSIX_VDISABLE)) { - *pfrontp++ = - (unsigned char)*slctab[SLC_AO].sptr; - } - - netclear(); /* clear buffer back */ - output_data("%c%c", IAC, DM); - neturg = nfrontp-1; /* off by one XXX */ - DIAG(TD_OPTIONS, - printoption("td: send IAC", DM)); - break; - } - - /* - * Erase Character and - * Erase Line - */ - case EC: - case EL: - { - cc_t ch; - - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - ptyflush(); /* half-hearted */ - init_termbuf(); - if (c == EC) - ch = *slctab[SLC_EC].sptr; - else - ch = *slctab[SLC_EL].sptr; - if (ch != (cc_t)(_POSIX_VDISABLE)) - *pfrontp++ = (unsigned char)ch; - break; - } - - /* - * Check for urgent data... - */ - case DM: - DIAG(TD_OPTIONS, - printoption("td: recv IAC", c)); - SYNCHing = stilloob(net); - settimer(gotDM); - break; - - - /* - * Begin option subnegotiation... - */ - case SB: - state = TS_SB; - SB_CLEAR(); - continue; - - case WILL: - state = TS_WILL; - continue; - - case WONT: - state = TS_WONT; - continue; - - case DO: - state = TS_DO; - continue; - - case DONT: - state = TS_DONT; - continue; - case EOR: - if (his_state_is_will(TELOPT_EOR)) - doeof(); - break; - - /* - * Handle RFC 10xx Telnet linemode option additions - * to command stream (EOF, SUSP, ABORT). - */ - case xEOF: - doeof(); - break; - - case SUSP: - sendsusp(); - break; - - case ABORT: - sendbrk(); - break; - - case IAC: - *pfrontp++ = c; - break; - } - state = TS_DATA; - break; - - case TS_SB: - if (c == IAC) { - state = TS_SE; - } else { - SB_ACCUM(c); - } - break; - - case TS_SE: - if (c != SE) { - if (c != IAC) { - /* - * bad form of suboption negotiation. - * handle it in such a way as to avoid - * damage to local state. Parse - * suboption buffer found so far, - * then treat remaining stream as - * another command sequence. - */ - - /* for DIAGNOSTICS */ - SB_ACCUM(IAC); - SB_ACCUM(c); - subpointer -= 2; - - SB_TERM(); - suboption(); - state = TS_IAC; - goto gotiac; - } - SB_ACCUM(c); - state = TS_SB; - } else { - /* for DIAGNOSTICS */ - SB_ACCUM(IAC); - SB_ACCUM(SE); - subpointer -= 2; - - SB_TERM(); - suboption(); /* handle sub-option */ - state = TS_DATA; - } - break; - - case TS_WILL: - willoption(c); - state = TS_DATA; - continue; - - case TS_WONT: - wontoption(c); - state = TS_DATA; - continue; - - case TS_DO: - dooption(c); - state = TS_DATA; - continue; - - case TS_DONT: - dontoption(c); - state = TS_DATA; - continue; - - default: - syslog(LOG_ERR, "panic state=%d", state); - printf("telnetd: panic state=%d\n", state); - exit(1); - } - } -} /* end of telrcv */ - -/* - * The will/wont/do/dont state machines are based on Dave Borman's - * Telnet option processing state machine. - * - * These correspond to the following states: - * my_state = the last negotiated state - * want_state = what I want the state to go to - * want_resp = how many requests I have sent - * All state defaults are negative, and resp defaults to 0. - * - * When initiating a request to change state to new_state: - * - * if ((want_resp == 0 && new_state == my_state) || want_state == new_state) { - * do nothing; - * } else { - * want_state = new_state; - * send new_state; - * want_resp++; - * } - * - * When receiving new_state: - * - * if (want_resp) { - * want_resp--; - * if (want_resp && (new_state == my_state)) - * want_resp--; - * } - * if ((want_resp == 0) && (new_state != want_state)) { - * if (ok_to_switch_to new_state) - * want_state = new_state; - * else - * want_resp++; - * send want_state; - * } - * my_state = new_state; - * - * Note that new_state is implied in these functions by the function itself. - * will and do imply positive new_state, wont and dont imply negative. - * - * Finally, there is one catch. If we send a negative response to a - * positive request, my_state will be the positive while want_state will - * remain negative. my_state will revert to negative when the negative - * acknowlegment arrives from the peer. Thus, my_state generally tells - * us not only the last negotiated state, but also tells us what the peer - * wants to be doing as well. It is important to understand this difference - * as we may wish to be processing data streams based on our desired state - * (want_state) or based on what the peer thinks the state is (my_state). - * - * This all works fine because if the peer sends a positive request, the data - * that we receive prior to negative acknowlegment will probably be affected - * by the positive state, and we can process it as such (if we can; if we - * can't then it really doesn't matter). If it is that important, then the - * peer probably should be buffering until this option state negotiation - * is complete. - * - */ -void -send_do(int option, int init) -{ - if (init) { - if ((do_dont_resp[option] == 0 && his_state_is_will(option)) || - his_want_state_is_will(option)) - return; - /* - * Special case for TELOPT_TM: We send a DO, but pretend - * that we sent a DONT, so that we can send more DOs if - * we want to. - */ - if (option == TELOPT_TM) - set_his_want_state_wont(option); - else - set_his_want_state_will(option); - do_dont_resp[option]++; - } - output_data((const char *)doopt, option); - - DIAG(TD_OPTIONS, printoption("td: send do", option)); -} - -void -willoption(int option) -{ - int changeok = 0; - void (*func)(void) = 0; - - /* - * process input from peer. - */ - - DIAG(TD_OPTIONS, printoption("td: recv will", option)); - - if (do_dont_resp[option]) { - do_dont_resp[option]--; - if (do_dont_resp[option] && his_state_is_will(option)) - do_dont_resp[option]--; - } - if (do_dont_resp[option] == 0) { - if (his_want_state_is_wont(option)) { - switch (option) { - - case TELOPT_BINARY: - init_termbuf(); - tty_binaryin(1); - set_termbuf(); - changeok++; - break; - - case TELOPT_ECHO: - /* - * See comments below for more info. - */ - not42 = 0; /* looks like a 4.2 system */ - break; - - case TELOPT_TM: -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - /* - * This telnetd implementation does not really - * support timing marks, it just uses them to - * support the kludge linemode stuff. If we - * receive a will or wont TM in response to our - * do TM request that may have been sent to - * determine kludge linemode support, process - * it, otherwise TM should get a negative - * response back. - */ - /* - * Handle the linemode kludge stuff. - * If we are not currently supporting any - * linemode at all, then we assume that this - * is the client telling us to use kludge - * linemode in response to our query. Set the - * linemode type that is to be supported, note - * that the client wishes to use linemode, and - * eat the will TM as though it never arrived. - */ - if (lmodetype < KLUDGE_LINEMODE) { - lmodetype = KLUDGE_LINEMODE; - clientstat(TELOPT_LINEMODE, WILL, 0); - send_wont(TELOPT_SGA, 1); - } else if (lmodetype == NO_AUTOKLUDGE) { - lmodetype = KLUDGE_OK; - } -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - /* - * We never respond to a WILL TM, and - * we leave the state WONT. - */ - return; - - case TELOPT_LFLOW: - /* - * If we are going to support flow control - * option, then don't worry peer that we can't - * change the flow control characters. - */ - slctab[SLC_XON].defset.flag &= ~SLC_LEVELBITS; - slctab[SLC_XON].defset.flag |= SLC_DEFAULT; - slctab[SLC_XOFF].defset.flag &= ~SLC_LEVELBITS; - slctab[SLC_XOFF].defset.flag |= SLC_DEFAULT; - case TELOPT_TTYPE: - case TELOPT_SGA: - case TELOPT_NAWS: - case TELOPT_TSPEED: - case TELOPT_XDISPLOC: - case TELOPT_NEW_ENVIRON: - case TELOPT_OLD_ENVIRON: - changeok++; - break; - -#ifdef LINEMODE - case TELOPT_LINEMODE: -# ifdef KLUDGELINEMODE - /* - * Note client's desire to use linemode. - */ - lmodetype = REAL_LINEMODE; -# endif /* KLUDGELINEMODE */ - func = doclientstat; - changeok++; - break; -#endif /* LINEMODE */ - - - - default: - break; - } - if (changeok) { - set_his_want_state_will(option); - send_do(option, 0); - } else { - do_dont_resp[option]++; - send_dont(option, 0); - } - } else { - /* - * Option processing that should happen when - * we receive conformation of a change in - * state that we had requested. - */ - switch (option) { - case TELOPT_ECHO: - not42 = 0; /* looks like a 4.2 system */ - /* - * Egads, he responded "WILL ECHO". Turn - * it off right now! - */ - send_dont(option, 1); - /* - * "WILL ECHO". Kludge upon kludge! - * A 4.2 client is now echoing user input at - * the tty. This is probably undesireable and - * it should be stopped. The client will - * respond WONT TM to the DO TM that we send to - * check for kludge linemode. When the WONT TM - * arrives, linemode will be turned off and a - * change propogated to the pty. This change - * will cause us to process the new pty state - * in localstat(), which will notice that - * linemode is off and send a WILL ECHO - * so that we are properly in character mode and - * all is well. - */ - break; -#ifdef LINEMODE - case TELOPT_LINEMODE: -# ifdef KLUDGELINEMODE - /* - * Note client's desire to use linemode. - */ - lmodetype = REAL_LINEMODE; -# endif /* KLUDGELINEMODE */ - func = doclientstat; - break; -#endif /* LINEMODE */ - - - case TELOPT_LFLOW: - func = flowstat; - break; - } - } - } - set_his_state_will(option); - if (func) - (*func)(); -} /* end of willoption */ - -void -send_dont(int option, int init) -{ - if (init) { - if ((do_dont_resp[option] == 0 && his_state_is_wont(option)) || - his_want_state_is_wont(option)) - return; - set_his_want_state_wont(option); - do_dont_resp[option]++; - } - output_data((const char *)dont, option); - - DIAG(TD_OPTIONS, printoption("td: send dont", option)); -} - -void -wontoption(int option) -{ - /* - * Process client input. - */ - - DIAG(TD_OPTIONS, printoption("td: recv wont", option)); - - if (do_dont_resp[option]) { - do_dont_resp[option]--; - if (do_dont_resp[option] && his_state_is_wont(option)) - do_dont_resp[option]--; - } - if (do_dont_resp[option] == 0) { - if (his_want_state_is_will(option)) { - /* it is always ok to change to negative state */ - switch (option) { - case TELOPT_ECHO: - not42 = 1; /* doesn't seem to be a 4.2 system */ - break; - - case TELOPT_BINARY: - init_termbuf(); - tty_binaryin(0); - set_termbuf(); - break; - -#ifdef LINEMODE - case TELOPT_LINEMODE: -# ifdef KLUDGELINEMODE - /* - * If real linemode is supported, then client is - * asking to turn linemode off. - */ - if (lmodetype != REAL_LINEMODE) - break; - lmodetype = KLUDGE_LINEMODE; -# endif /* KLUDGELINEMODE */ - clientstat(TELOPT_LINEMODE, WONT, 0); - break; -#endif /* LINEMODE */ - - case TELOPT_TM: - /* - * If we get a WONT TM, and had sent a DO TM, - * don't respond with a DONT TM, just leave it - * as is. Short circut the state machine to - * achive this. - */ - set_his_want_state_wont(TELOPT_TM); - return; - - case TELOPT_LFLOW: - /* - * If we are not going to support flow control - * option, then let peer know that we can't - * change the flow control characters. - */ - slctab[SLC_XON].defset.flag &= ~SLC_LEVELBITS; - slctab[SLC_XON].defset.flag |= SLC_CANTCHANGE; - slctab[SLC_XOFF].defset.flag &= ~SLC_LEVELBITS; - slctab[SLC_XOFF].defset.flag |= SLC_CANTCHANGE; - break; - - - /* - * For options that we might spin waiting for - * sub-negotiation, if the client turns off the - * option rather than responding to the request, - * we have to treat it here as if we got a response - * to the sub-negotiation, (by updating the timers) - * so that we'll break out of the loop. - */ - case TELOPT_TTYPE: - settimer(ttypesubopt); - break; - - case TELOPT_TSPEED: - settimer(tspeedsubopt); - break; - - case TELOPT_XDISPLOC: - settimer(xdisplocsubopt); - break; - - case TELOPT_OLD_ENVIRON: - settimer(oenvironsubopt); - break; - - case TELOPT_NEW_ENVIRON: - settimer(environsubopt); - break; - - default: - break; - } - set_his_want_state_wont(option); - if (his_state_is_will(option)) - send_dont(option, 0); - } else { - switch (option) { - case TELOPT_TM: -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - if (lmodetype < NO_AUTOKLUDGE) { - lmodetype = NO_LINEMODE; - clientstat(TELOPT_LINEMODE, WONT, 0); - send_will(TELOPT_SGA, 1); - send_will(TELOPT_ECHO, 1); - } -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - break; - - default: - break; - } - } - } - set_his_state_wont(option); - -} /* end of wontoption */ - -void -send_will(int option, int init) -{ - if (init) { - if ((will_wont_resp[option] == 0 && my_state_is_will(option))|| - my_want_state_is_will(option)) - return; - set_my_want_state_will(option); - will_wont_resp[option]++; - } - output_data((const char *)will, option); - - DIAG(TD_OPTIONS, printoption("td: send will", option)); -} - -#if !defined(LINEMODE) || !defined(KLUDGELINEMODE) -/* - * When we get a DONT SGA, we will try once to turn it - * back on. If the other side responds DONT SGA, we - * leave it at that. This is so that when we talk to - * clients that understand KLUDGELINEMODE but not LINEMODE, - * we'll keep them in char-at-a-time mode. - */ -int turn_on_sga = 0; -#endif - -void -dooption(int option) -{ - int changeok = 0; - - /* - * Process client input. - */ - - DIAG(TD_OPTIONS, printoption("td: recv do", option)); - - if (will_wont_resp[option]) { - will_wont_resp[option]--; - if (will_wont_resp[option] && my_state_is_will(option)) - will_wont_resp[option]--; - } - if ((will_wont_resp[option] == 0) && (my_want_state_is_wont(option))) { - switch (option) { - case TELOPT_ECHO: -#ifdef LINEMODE -# ifdef KLUDGELINEMODE - if (lmodetype == NO_LINEMODE) -# else - if (his_state_is_wont(TELOPT_LINEMODE)) -# endif -#endif - { - init_termbuf(); - tty_setecho(1); - set_termbuf(); - } - changeok++; - break; - - case TELOPT_BINARY: - init_termbuf(); - tty_binaryout(1); - set_termbuf(); - changeok++; - break; - - case TELOPT_SGA: -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - /* - * If kludge linemode is in use, then we must - * process an incoming do SGA for linemode - * purposes. - */ - if (lmodetype == KLUDGE_LINEMODE) { - /* - * Receipt of "do SGA" in kludge - * linemode is the peer asking us to - * turn off linemode. Make note of - * the request. - */ - clientstat(TELOPT_LINEMODE, WONT, 0); - /* - * If linemode did not get turned off - * then don't tell peer that we did. - * Breaking here forces a wont SGA to - * be returned. - */ - if (linemode) - break; - } -#else - turn_on_sga = 0; -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - changeok++; - break; - - case TELOPT_STATUS: - changeok++; - break; - - case TELOPT_TM: - /* - * Special case for TM. We send a WILL, but - * pretend we sent a WONT. - */ - send_will(option, 0); - set_my_want_state_wont(option); - set_my_state_wont(option); - return; - - case TELOPT_LOGOUT: - /* - * When we get a LOGOUT option, respond - * with a WILL LOGOUT, make sure that - * it gets written out to the network, - * and then just go away... - */ - set_my_want_state_will(TELOPT_LOGOUT); - send_will(TELOPT_LOGOUT, 0); - set_my_state_will(TELOPT_LOGOUT); - (void)netflush(); - cleanup(0); - /* NOT REACHED */ - break; - - case TELOPT_LINEMODE: - case TELOPT_TTYPE: - case TELOPT_NAWS: - case TELOPT_TSPEED: - case TELOPT_LFLOW: - case TELOPT_XDISPLOC: -#ifdef TELOPT_ENVIRON - case TELOPT_NEW_ENVIRON: -#endif - case TELOPT_OLD_ENVIRON: - default: - break; - } - if (changeok) { - set_my_want_state_will(option); - send_will(option, 0); - } else { - will_wont_resp[option]++; - send_wont(option, 0); - } - } - set_my_state_will(option); - -} /* end of dooption */ - -void -send_wont(int option, int init) -{ - if (init) { - if ((will_wont_resp[option] == 0 && my_state_is_wont(option)) || - my_want_state_is_wont(option)) - return; - set_my_want_state_wont(option); - will_wont_resp[option]++; - } - output_data((const char *)wont, option); - - DIAG(TD_OPTIONS, printoption("td: send wont", option)); -} - -void -dontoption(int option) -{ - /* - * Process client input. - */ - - - DIAG(TD_OPTIONS, printoption("td: recv dont", option)); - - if (will_wont_resp[option]) { - will_wont_resp[option]--; - if (will_wont_resp[option] && my_state_is_wont(option)) - will_wont_resp[option]--; - } - if ((will_wont_resp[option] == 0) && (my_want_state_is_will(option))) { - switch (option) { - case TELOPT_BINARY: - init_termbuf(); - tty_binaryout(0); - set_termbuf(); - break; - - case TELOPT_ECHO: /* we should stop echoing */ -#ifdef LINEMODE -# ifdef KLUDGELINEMODE - if ((lmodetype != REAL_LINEMODE) && - (lmodetype != KLUDGE_LINEMODE)) -# else - if (his_state_is_wont(TELOPT_LINEMODE)) -# endif -#endif - { - init_termbuf(); - tty_setecho(0); - set_termbuf(); - } - break; - - case TELOPT_SGA: -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - /* - * If kludge linemode is in use, then we - * must process an incoming do SGA for - * linemode purposes. - */ - if ((lmodetype == KLUDGE_LINEMODE) || - (lmodetype == KLUDGE_OK)) { - /* - * The client is asking us to turn - * linemode on. - */ - lmodetype = KLUDGE_LINEMODE; - clientstat(TELOPT_LINEMODE, WILL, 0); - /* - * If we did not turn line mode on, - * then what do we say? Will SGA? - * This violates design of telnet. - * Gross. Very Gross. - */ - } - break; -#else - set_my_want_state_wont(option); - if (my_state_is_will(option)) - send_wont(option, 0); - set_my_state_wont(option); - if (turn_on_sga ^= 1) - send_will(option, 1); - return; -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - - default: - break; - } - - set_my_want_state_wont(option); - if (my_state_is_will(option)) - send_wont(option, 0); - } - set_my_state_wont(option); - -} /* end of dontoption */ - -#ifdef ENV_HACK -int env_ovar = -1; -int env_ovalue = -1; -#else /* ENV_HACK */ -# define env_ovar OLD_ENV_VAR -# define env_ovalue OLD_ENV_VALUE -#endif /* ENV_HACK */ - -/* - * suboption() - * - * Look at the sub-option buffer, and try to be helpful to the other - * side. - * - * Currently we recognize: - * - * Terminal type is - * Linemode - * Window size - * Terminal speed - */ -void -suboption(void) -{ - int subchar; - - DIAG(TD_OPTIONS, {netflush(); printsub('<', subpointer, SB_LEN()+2);}); - - subchar = SB_GET(); - switch (subchar) { - case TELOPT_TSPEED: { - int xspeed, rspeed; - - if (his_state_is_wont(TELOPT_TSPEED)) /* Ignore if option disabled */ - break; - - settimer(tspeedsubopt); - - if (SB_EOF() || SB_GET() != TELQUAL_IS) - return; - - xspeed = atoi((char *)subpointer); - - while (SB_GET() != ',' && !SB_EOF()); - if (SB_EOF()) - return; - - rspeed = atoi((char *)subpointer); - clientstat(TELOPT_TSPEED, xspeed, rspeed); - - break; - - } /* end of case TELOPT_TSPEED */ - - case TELOPT_TTYPE: { /* Yaaaay! */ - static char terminalname[41]; - - if (his_state_is_wont(TELOPT_TTYPE)) /* Ignore if option disabled */ - break; - settimer(ttypesubopt); - - if (SB_EOF() || SB_GET() != TELQUAL_IS) { - return; /* ??? XXX but, this is the most robust */ - } - - terminaltype = terminalname; - - while ((terminaltype < (terminalname + sizeof terminalname-1)) && - !SB_EOF()) { - int c; - - c = SB_GET(); - if (isupper(c)) { - c = tolower(c); - } - *terminaltype++ = c; /* accumulate name */ - } - *terminaltype = 0; - terminaltype = terminalname; - break; - } /* end of case TELOPT_TTYPE */ - - case TELOPT_NAWS: { - int xwinsize, ywinsize; - - if (his_state_is_wont(TELOPT_NAWS)) /* Ignore if option disabled */ - break; - - if (SB_EOF()) - return; - xwinsize = SB_GET() << 8; - if (SB_EOF()) - return; - xwinsize |= SB_GET(); - if (SB_EOF()) - return; - ywinsize = SB_GET() << 8; - if (SB_EOF()) - return; - ywinsize |= SB_GET(); - clientstat(TELOPT_NAWS, xwinsize, ywinsize); - - break; - - } /* end of case TELOPT_NAWS */ - -#ifdef LINEMODE - case TELOPT_LINEMODE: { - int request; - - if (his_state_is_wont(TELOPT_LINEMODE)) /* Ignore if option disabled */ - break; - /* - * Process linemode suboptions. - */ - if (SB_EOF()) - break; /* garbage was sent */ - request = SB_GET(); /* get will/wont */ - - if (SB_EOF()) - break; /* another garbage check */ - - if (request == LM_SLC) { /* SLC is not preceeded by WILL or WONT */ - /* - * Process suboption buffer of slc's - */ - start_slc(1); - do_opt_slc(subpointer, subend - subpointer); - (void) end_slc(0); - break; - } else if (request == LM_MODE) { - if (SB_EOF()) - return; - useeditmode = SB_GET(); /* get mode flag */ - clientstat(LM_MODE, 0, 0); - break; - } - - if (SB_EOF()) - break; - switch (SB_GET()) { /* what suboption? */ - case LM_FORWARDMASK: - /* - * According to spec, only server can send request for - * forwardmask, and client can only return a positive response. - * So don't worry about it. - */ - - default: - break; - } - break; - } /* end of case TELOPT_LINEMODE */ -#endif - case TELOPT_STATUS: { - int mode; - - if (SB_EOF()) - break; - mode = SB_GET(); - switch (mode) { - case TELQUAL_SEND: - if (my_state_is_will(TELOPT_STATUS)) - send_status(); - break; - - case TELQUAL_IS: - break; - - default: - break; - } - break; - } /* end of case TELOPT_STATUS */ - - case TELOPT_XDISPLOC: { - if (SB_EOF() || SB_GET() != TELQUAL_IS) - return; - settimer(xdisplocsubopt); - subpointer[SB_LEN()] = '\0'; - (void)setenv("DISPLAY", (char *)subpointer, 1); - break; - } /* end of case TELOPT_XDISPLOC */ - -#ifdef TELOPT_NEW_ENVIRON - case TELOPT_NEW_ENVIRON: -#endif - case TELOPT_OLD_ENVIRON: { - int c; - char *cp, *varp, *valp; - - if (SB_EOF()) - return; - c = SB_GET(); - if (c == TELQUAL_IS) { - if (subchar == TELOPT_OLD_ENVIRON) - settimer(oenvironsubopt); - else - settimer(environsubopt); - } else if (c != TELQUAL_INFO) { - return; - } - -#ifdef TELOPT_NEW_ENVIRON - if (subchar == TELOPT_NEW_ENVIRON) { - while (!SB_EOF()) { - c = SB_GET(); - if ((c == NEW_ENV_VAR) || (c == ENV_USERVAR)) - break; - } - } else -#endif - { -#ifdef ENV_HACK - /* - * We only want to do this if we haven't already decided - * whether or not the other side has its VALUE and VAR - * reversed. - */ - if (env_ovar < 0) { - int last = -1; /* invalid value */ - int empty = 0; - int got_var = 0, got_value = 0, got_uservar = 0; - - /* - * The other side might have its VALUE and VAR values - * reversed. To be interoperable, we need to determine - * which way it is. If the first recognized character - * is a VAR or VALUE, then that will tell us what - * type of client it is. If the fist recognized - * character is a USERVAR, then we continue scanning - * the suboption looking for two consecutive - * VAR or VALUE fields. We should not get two - * consecutive VALUE fields, so finding two - * consecutive VALUE or VAR fields will tell us - * what the client is. - */ - SB_SAVE(); - while (!SB_EOF()) { - c = SB_GET(); - switch(c) { - case OLD_ENV_VAR: - if (last < 0 || last == OLD_ENV_VAR - || (empty && (last == OLD_ENV_VALUE))) - goto env_ovar_ok; - got_var++; - last = OLD_ENV_VAR; - break; - case OLD_ENV_VALUE: - if (last < 0 || last == OLD_ENV_VALUE - || (empty && (last == OLD_ENV_VAR))) - goto env_ovar_wrong; - got_value++; - last = OLD_ENV_VALUE; - break; - case ENV_USERVAR: - /* count strings of USERVAR as one */ - if (last != ENV_USERVAR) - got_uservar++; - if (empty) { - if (last == OLD_ENV_VALUE) - goto env_ovar_ok; - if (last == OLD_ENV_VAR) - goto env_ovar_wrong; - } - last = ENV_USERVAR; - break; - case ENV_ESC: - if (!SB_EOF()) - c = SB_GET(); - /* FALLTHROUGH */ - default: - empty = 0; - continue; - } - empty = 1; - } - if (empty) { - if (last == OLD_ENV_VALUE) - goto env_ovar_ok; - if (last == OLD_ENV_VAR) - goto env_ovar_wrong; - } - /* - * Ok, the first thing was a USERVAR, and there - * are not two consecutive VAR or VALUE commands, - * and none of the VAR or VALUE commands are empty. - * If the client has sent us a well-formed option, - * then the number of VALUEs received should always - * be less than or equal to the number of VARs and - * USERVARs received. - * - * If we got exactly as many VALUEs as VARs and - * USERVARs, the client has the same definitions. - * - * If we got exactly as many VARs as VALUEs and - * USERVARS, the client has reversed definitions. - */ - if (got_uservar + got_var == got_value) { - env_ovar_ok: - env_ovar = OLD_ENV_VAR; - env_ovalue = OLD_ENV_VALUE; - } else if (got_uservar + got_value == got_var) { - env_ovar_wrong: - env_ovar = OLD_ENV_VALUE; - env_ovalue = OLD_ENV_VAR; - DIAG(TD_OPTIONS, - output_data("ENVIRON VALUE and VAR are reversed!\r\n")); - - } - } - SB_RESTORE(); -#endif - - while (!SB_EOF()) { - c = SB_GET(); - if ((c == env_ovar) || (c == ENV_USERVAR)) - break; - } - } - - if (SB_EOF()) - return; - - cp = varp = (char *)subpointer; - valp = 0; - - while (!SB_EOF()) { - c = SB_GET(); - if (subchar == TELOPT_OLD_ENVIRON) { - if (c == env_ovar) - c = NEW_ENV_VAR; - else if (c == env_ovalue) - c = NEW_ENV_VALUE; - } - switch (c) { - - case NEW_ENV_VALUE: - *cp = '\0'; - cp = valp = (char *)subpointer; - break; - - case NEW_ENV_VAR: - case ENV_USERVAR: - *cp = '\0'; - if (valp) - (void)setenv(varp, valp, 1); - else - unsetenv(varp); - cp = varp = (char *)subpointer; - valp = 0; - break; - - case ENV_ESC: - if (SB_EOF()) - break; - c = SB_GET(); - /* FALLTHROUGH */ - default: - *cp++ = c; - break; - } - } - *cp = '\0'; - if (valp) - (void)setenv(varp, valp, 1); - else - unsetenv(varp); - break; - } /* end of case TELOPT_NEW_ENVIRON */ - - default: - break; - } /* end of switch */ - -} /* end of suboption */ - -static void -doclientstat(void) -{ - clientstat(TELOPT_LINEMODE, WILL, 0); -} - -#define ADD(c) *ncp++ = c -#define ADD_DATA(c) { *ncp++ = c; if (c == SE || c == IAC) *ncp++ = c; } -void -send_status(void) -{ - unsigned char statusbuf[256]; - unsigned char *ncp; - unsigned char i; - - ncp = statusbuf; - - netflush(); /* get rid of anything waiting to go out */ - - ADD(IAC); - ADD(SB); - ADD(TELOPT_STATUS); - ADD(TELQUAL_IS); - - /* - * We check the want_state rather than the current state, - * because if we received a DO/WILL for an option that we - * don't support, and the other side didn't send a DONT/WONT - * in response to our WONT/DONT, then the "state" will be - * WILL/DO, and the "want_state" will be WONT/DONT. We - * need to go by the latter. - */ - for (i = 0; i < (unsigned char)NTELOPTS; i++) { - if (my_want_state_is_will(i)) { - ADD(WILL); - ADD_DATA(i); - if (i == IAC) - ADD(IAC); - } - if (his_want_state_is_will(i)) { - ADD(DO); - ADD_DATA(i); - if (i == IAC) - ADD(IAC); - } - } - - if (his_want_state_is_will(TELOPT_LFLOW)) { - ADD(SB); - ADD(TELOPT_LFLOW); - if (flowmode) { - ADD(LFLOW_ON); - } else { - ADD(LFLOW_OFF); - } - ADD(SE); - - if (restartany >= 0) { - ADD(SB); - ADD(TELOPT_LFLOW); - if (restartany) { - ADD(LFLOW_RESTART_ANY); - } else { - ADD(LFLOW_RESTART_XON); - } - ADD(SE); - } - } - -#ifdef LINEMODE - if (his_want_state_is_will(TELOPT_LINEMODE)) { - unsigned char *cp, *cpe; - int len; - - ADD(SB); - ADD(TELOPT_LINEMODE); - ADD(LM_MODE); - ADD_DATA(editmode); - ADD(SE); - - ADD(SB); - ADD(TELOPT_LINEMODE); - ADD(LM_SLC); - start_slc(0); - send_slc(); - len = end_slc(&cp); - for (cpe = cp + len; cp < cpe; cp++) - ADD_DATA(*cp); - ADD(SE); - } -#endif /* LINEMODE */ - - ADD(IAC); - ADD(SE); - - output_datalen(statusbuf, ncp - statusbuf); - netflush(); /* Send it on its way */ - - DIAG(TD_OPTIONS, - {printsub('>', statusbuf, ncp - statusbuf); netflush();}); -} - -/* - * This function appends data to nfrontp and advances nfrontp. - * Returns the number of characters written altogether (the - * buffer may have been flushed in the process). - */ - -int -output_data(const char *format, ...) -{ - va_list args; - int len; - char *buf; - - va_start(args, format); - if ((len = vasprintf(&buf, format, args)) == -1) - return -1; - output_datalen(buf, len); - va_end(args); - free(buf); - return (len); -} - -void -output_datalen(const char *buf, int len) -{ - int remaining, copied; - - remaining = BUFSIZ - (nfrontp - netobuf); - while (len > 0) { - /* Free up enough space if the room is too low*/ - if ((len > BUFSIZ ? BUFSIZ : len) > remaining) { - netflush(); - remaining = BUFSIZ - (nfrontp - netobuf); - } - - /* Copy out as much as will fit */ - copied = remaining > len ? len : remaining; - memmove(nfrontp, buf, copied); - nfrontp += copied; - len -= copied; - remaining -= copied; - buf += copied; - } - return; -} diff --git a/libexec/telnetd/sys_term.c b/libexec/telnetd/sys_term.c deleted file mode 100644 index e0525d6..0000000 --- a/libexec/telnetd/sys_term.c +++ /dev/null @@ -1,1192 +0,0 @@ - /* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)sys_term.c 8.4+1 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <sys/tty.h> -#include <libutil.h> -#include <stdlib.h> -#include <utmp.h> - -#include "telnetd.h" -#include "pathnames.h" - - -int cleanopen(char *); -void scrub_env(void); - -struct utmp wtmp; - -#ifdef _PATH_WTMP -char wtmpf[] = _PATH_WTMP; -#else -char wtmpf[] = "/var/log/wtmp"; -#endif -#ifdef _PATH_UTMP -char utmpf[] = _PATH_UTMP; -#else -char utmpf[] = "/var/run/utmp"; -#endif - -char *envinit[3]; -extern char **environ; - -#define SCPYN(a, b) (void) strncpy(a, b, sizeof(a)) -#define SCMPN(a, b) strncmp(a, b, sizeof(a)) - -#ifdef t_erase -#undef t_erase -#undef t_kill -#undef t_intrc -#undef t_quitc -#undef t_startc -#undef t_stopc -#undef t_eofc -#undef t_brkc -#undef t_suspc -#undef t_dsuspc -#undef t_rprntc -#undef t_flushc -#undef t_werasc -#undef t_lnextc -#endif - -#ifndef USE_TERMIO -struct termbuf { - struct sgttyb sg; - struct tchars tc; - struct ltchars ltc; - int state; - int lflags; -} termbuf, termbuf2; -# define cfsetospeed(tp, val) (tp)->sg.sg_ospeed = (val) -# define cfsetispeed(tp, val) (tp)->sg.sg_ispeed = (val) -# define cfgetospeed(tp) (tp)->sg.sg_ospeed -# define cfgetispeed(tp) (tp)->sg.sg_ispeed -#else /* USE_TERMIO */ -# ifndef TCSANOW -# ifdef TCSETS -# define TCSANOW TCSETS -# define TCSADRAIN TCSETSW -# define tcgetattr(f, t) ioctl(f, TCGETS, (char *)t) -# else -# ifdef TCSETA -# define TCSANOW TCSETA -# define TCSADRAIN TCSETAW -# define tcgetattr(f, t) ioctl(f, TCGETA, (char *)t) -# else -# define TCSANOW TIOCSETA -# define TCSADRAIN TIOCSETAW -# define tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t) -# endif -# endif -# define tcsetattr(f, a, t) ioctl(f, a, t) -# define cfsetospeed(tp, val) (tp)->c_cflag &= ~CBAUD; \ - (tp)->c_cflag |= (val) -# define cfgetospeed(tp) ((tp)->c_cflag & CBAUD) -# ifdef CIBAUD -# define cfsetispeed(tp, val) (tp)->c_cflag &= ~CIBAUD; \ - (tp)->c_cflag |= ((val)<<IBSHIFT) -# define cfgetispeed(tp) (((tp)->c_cflag & CIBAUD)>>IBSHIFT) -# else -# define cfsetispeed(tp, val) (tp)->c_cflag &= ~CBAUD; \ - (tp)->c_cflag |= (val) -# define cfgetispeed(tp) ((tp)->c_cflag & CBAUD) -# endif -# endif /* TCSANOW */ -struct termios termbuf, termbuf2; /* pty control structure */ -#endif /* USE_TERMIO */ - -#include <sys/types.h> -#include <libutil.h> - -int cleanopen(char *); -void scrub_env(void); -static char **addarg(char **, const char *); - -/* - * init_termbuf() - * copy_termbuf(cp) - * set_termbuf() - * - * These three routines are used to get and set the "termbuf" structure - * to and from the kernel. init_termbuf() gets the current settings. - * copy_termbuf() hands in a new "termbuf" to write to the kernel, and - * set_termbuf() writes the structure into the kernel. - */ - -void -init_termbuf(void) -{ -#ifndef USE_TERMIO - (void) ioctl(pty, TIOCGETP, (char *)&termbuf.sg); - (void) ioctl(pty, TIOCGETC, (char *)&termbuf.tc); - (void) ioctl(pty, TIOCGLTC, (char *)&termbuf.ltc); -# ifdef TIOCGSTATE - (void) ioctl(pty, TIOCGSTATE, (char *)&termbuf.state); -# endif -#else - (void) tcgetattr(pty, &termbuf); -#endif - termbuf2 = termbuf; -} - -#if defined(LINEMODE) && defined(TIOCPKT_IOCTL) -void -copy_termbuf(char *cp, size_t len) -{ - if (len > sizeof(termbuf)) - len = sizeof(termbuf); - memmove((char *)&termbuf, cp, len); - termbuf2 = termbuf; -} -#endif /* defined(LINEMODE) && defined(TIOCPKT_IOCTL) */ - -void -set_termbuf(void) -{ - /* - * Only make the necessary changes. - */ -#ifndef USE_TERMIO - if (memcmp((char *)&termbuf.sg, (char *)&termbuf2.sg, - sizeof(termbuf.sg))) - (void) ioctl(pty, TIOCSETN, (char *)&termbuf.sg); - if (memcmp((char *)&termbuf.tc, (char *)&termbuf2.tc, - sizeof(termbuf.tc))) - (void) ioctl(pty, TIOCSETC, (char *)&termbuf.tc); - if (memcmp((char *)&termbuf.ltc, (char *)&termbuf2.ltc, - sizeof(termbuf.ltc))) - (void) ioctl(pty, TIOCSLTC, (char *)&termbuf.ltc); - if (termbuf.lflags != termbuf2.lflags) - (void) ioctl(pty, TIOCLSET, (char *)&termbuf.lflags); -#else /* USE_TERMIO */ - if (memcmp((char *)&termbuf, (char *)&termbuf2, sizeof(termbuf))) - (void) tcsetattr(pty, TCSANOW, &termbuf); -#endif /* USE_TERMIO */ -} - - -/* - * spcset(func, valp, valpp) - * - * This function takes various special characters (func), and - * sets *valp to the current value of that character, and - * *valpp to point to where in the "termbuf" structure that - * value is kept. - * - * It returns the SLC_ level of support for this function. - */ - -#ifndef USE_TERMIO -int -spcset(int func, cc_t *valp, cc_t **valpp) -{ - switch(func) { - case SLC_EOF: - *valp = termbuf.tc.t_eofc; - *valpp = (cc_t *)&termbuf.tc.t_eofc; - return(SLC_VARIABLE); - case SLC_EC: - *valp = termbuf.sg.sg_erase; - *valpp = (cc_t *)&termbuf.sg.sg_erase; - return(SLC_VARIABLE); - case SLC_EL: - *valp = termbuf.sg.sg_kill; - *valpp = (cc_t *)&termbuf.sg.sg_kill; - return(SLC_VARIABLE); - case SLC_IP: - *valp = termbuf.tc.t_intrc; - *valpp = (cc_t *)&termbuf.tc.t_intrc; - return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_ABORT: - *valp = termbuf.tc.t_quitc; - *valpp = (cc_t *)&termbuf.tc.t_quitc; - return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_XON: - *valp = termbuf.tc.t_startc; - *valpp = (cc_t *)&termbuf.tc.t_startc; - return(SLC_VARIABLE); - case SLC_XOFF: - *valp = termbuf.tc.t_stopc; - *valpp = (cc_t *)&termbuf.tc.t_stopc; - return(SLC_VARIABLE); - case SLC_AO: - *valp = termbuf.ltc.t_flushc; - *valpp = (cc_t *)&termbuf.ltc.t_flushc; - return(SLC_VARIABLE); - case SLC_SUSP: - *valp = termbuf.ltc.t_suspc; - *valpp = (cc_t *)&termbuf.ltc.t_suspc; - return(SLC_VARIABLE); - case SLC_EW: - *valp = termbuf.ltc.t_werasc; - *valpp = (cc_t *)&termbuf.ltc.t_werasc; - return(SLC_VARIABLE); - case SLC_RP: - *valp = termbuf.ltc.t_rprntc; - *valpp = (cc_t *)&termbuf.ltc.t_rprntc; - return(SLC_VARIABLE); - case SLC_LNEXT: - *valp = termbuf.ltc.t_lnextc; - *valpp = (cc_t *)&termbuf.ltc.t_lnextc; - return(SLC_VARIABLE); - case SLC_FORW1: - *valp = termbuf.tc.t_brkc; - *valpp = (cc_t *)&termbuf.ltc.t_lnextc; - return(SLC_VARIABLE); - case SLC_BRK: - case SLC_SYNCH: - case SLC_AYT: - case SLC_EOR: - *valp = (cc_t)0; - *valpp = (cc_t *)0; - return(SLC_DEFAULT); - default: - *valp = (cc_t)0; - *valpp = (cc_t *)0; - return(SLC_NOSUPPORT); - } -} - -#else /* USE_TERMIO */ - - -#define setval(a, b) *valp = termbuf.c_cc[a]; \ - *valpp = &termbuf.c_cc[a]; \ - return(b); -#define defval(a) *valp = ((cc_t)a); *valpp = (cc_t *)0; return(SLC_DEFAULT); - -int -spcset(int func, cc_t *valp, cc_t **valpp) -{ - switch(func) { - case SLC_EOF: - setval(VEOF, SLC_VARIABLE); - case SLC_EC: - setval(VERASE, SLC_VARIABLE); - case SLC_EL: - setval(VKILL, SLC_VARIABLE); - case SLC_IP: - setval(VINTR, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_ABORT: - setval(VQUIT, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_XON: -#ifdef VSTART - setval(VSTART, SLC_VARIABLE); -#else - defval(0x13); -#endif - case SLC_XOFF: -#ifdef VSTOP - setval(VSTOP, SLC_VARIABLE); -#else - defval(0x11); -#endif - case SLC_EW: -#ifdef VWERASE - setval(VWERASE, SLC_VARIABLE); -#else - defval(0); -#endif - case SLC_RP: -#ifdef VREPRINT - setval(VREPRINT, SLC_VARIABLE); -#else - defval(0); -#endif - case SLC_LNEXT: -#ifdef VLNEXT - setval(VLNEXT, SLC_VARIABLE); -#else - defval(0); -#endif - case SLC_AO: -#if !defined(VDISCARD) && defined(VFLUSHO) -# define VDISCARD VFLUSHO -#endif -#ifdef VDISCARD - setval(VDISCARD, SLC_VARIABLE|SLC_FLUSHOUT); -#else - defval(0); -#endif - case SLC_SUSP: -#ifdef VSUSP - setval(VSUSP, SLC_VARIABLE|SLC_FLUSHIN); -#else - defval(0); -#endif -#ifdef VEOL - case SLC_FORW1: - setval(VEOL, SLC_VARIABLE); -#endif -#ifdef VEOL2 - case SLC_FORW2: - setval(VEOL2, SLC_VARIABLE); -#endif - case SLC_AYT: -#ifdef VSTATUS - setval(VSTATUS, SLC_VARIABLE); -#else - defval(0); -#endif - - case SLC_BRK: - case SLC_SYNCH: - case SLC_EOR: - defval(0); - - default: - *valp = 0; - *valpp = 0; - return(SLC_NOSUPPORT); - } -} -#endif /* USE_TERMIO */ - -/* - * getpty() - * - * Allocate a pty. As a side effect, the external character - * array "line" contains the name of the slave side. - * - * Returns the file descriptor of the opened pty. - */ -char alpha[] = "0123456789abcdefghijklmnopqrstuv"; -char line[16]; - -int -getpty(int *ptynum __unused) -{ - int p; - const char *cp; - char *p1, *p2; - int i; - - (void) strcpy(line, _PATH_DEV); - (void) strcat(line, "ptyXX"); - p1 = &line[8]; - p2 = &line[9]; - - for (cp = "pqrsPQRS"; *cp; cp++) { - struct stat stb; - - *p1 = *cp; - *p2 = '0'; - /* - * This stat() check is just to keep us from - * looping through all 256 combinations if there - * aren't that many ptys available. - */ - if (stat(line, &stb) < 0) - break; - for (i = 0; i < 32; i++) { - *p2 = alpha[i]; - p = open(line, 2); - if (p > 0) { - line[5] = 't'; - chown(line, 0, 0); - chmod(line, 0600); - return(p); - } - } - } - return(-1); -} - -#ifdef LINEMODE -/* - * tty_flowmode() Find out if flow control is enabled or disabled. - * tty_linemode() Find out if linemode (external processing) is enabled. - * tty_setlinemod(on) Turn on/off linemode. - * tty_isecho() Find out if echoing is turned on. - * tty_setecho(on) Enable/disable character echoing. - * tty_israw() Find out if terminal is in RAW mode. - * tty_binaryin(on) Turn on/off BINARY on input. - * tty_binaryout(on) Turn on/off BINARY on output. - * tty_isediting() Find out if line editing is enabled. - * tty_istrapsig() Find out if signal trapping is enabled. - * tty_setedit(on) Turn on/off line editing. - * tty_setsig(on) Turn on/off signal trapping. - * tty_issofttab() Find out if tab expansion is enabled. - * tty_setsofttab(on) Turn on/off soft tab expansion. - * tty_islitecho() Find out if typed control chars are echoed literally - * tty_setlitecho() Turn on/off literal echo of control chars - * tty_tspeed(val) Set transmit speed to val. - * tty_rspeed(val) Set receive speed to val. - */ - - -int -tty_linemode(void) -{ -#ifndef USE_TERMIO - return(termbuf.state & TS_EXTPROC); -#else - return(termbuf.c_lflag & EXTPROC); -#endif -} - -void -tty_setlinemode(int on) -{ -#ifdef TIOCEXT - set_termbuf(); - (void) ioctl(pty, TIOCEXT, (char *)&on); - init_termbuf(); -#else /* !TIOCEXT */ -# ifdef EXTPROC - if (on) - termbuf.c_lflag |= EXTPROC; - else - termbuf.c_lflag &= ~EXTPROC; -# endif -#endif /* TIOCEXT */ -} -#endif /* LINEMODE */ - -int -tty_isecho(void) -{ -#ifndef USE_TERMIO - return (termbuf.sg.sg_flags & ECHO); -#else - return (termbuf.c_lflag & ECHO); -#endif -} - -int -tty_flowmode(void) -{ -#ifndef USE_TERMIO - return(((termbuf.tc.t_startc) > 0 && (termbuf.tc.t_stopc) > 0) ? 1 : 0); -#else - return((termbuf.c_iflag & IXON) ? 1 : 0); -#endif -} - -int -tty_restartany(void) -{ -#ifndef USE_TERMIO -# ifdef DECCTQ - return((termbuf.lflags & DECCTQ) ? 0 : 1); -# else - return(-1); -# endif -#else - return((termbuf.c_iflag & IXANY) ? 1 : 0); -#endif -} - -void -tty_setecho(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags |= ECHO|CRMOD; - else - termbuf.sg.sg_flags &= ~(ECHO|CRMOD); -#else - if (on) - termbuf.c_lflag |= ECHO; - else - termbuf.c_lflag &= ~ECHO; -#endif -} - -int -tty_israw(void) -{ -#ifndef USE_TERMIO - return(termbuf.sg.sg_flags & RAW); -#else - return(!(termbuf.c_lflag & ICANON)); -#endif -} - - -void -tty_binaryin(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.lflags |= LPASS8; - else - termbuf.lflags &= ~LPASS8; -#else - if (on) { - termbuf.c_iflag &= ~ISTRIP; - } else { - termbuf.c_iflag |= ISTRIP; - } -#endif -} - -void -tty_binaryout(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.lflags |= LLITOUT; - else - termbuf.lflags &= ~LLITOUT; -#else - if (on) { - termbuf.c_cflag &= ~(CSIZE|PARENB); - termbuf.c_cflag |= CS8; - termbuf.c_oflag &= ~OPOST; - } else { - termbuf.c_cflag &= ~CSIZE; - termbuf.c_cflag |= CS7|PARENB; - termbuf.c_oflag |= OPOST; - } -#endif -} - -int -tty_isbinaryin(void) -{ -#ifndef USE_TERMIO - return(termbuf.lflags & LPASS8); -#else - return(!(termbuf.c_iflag & ISTRIP)); -#endif -} - -int -tty_isbinaryout(void) -{ -#ifndef USE_TERMIO - return(termbuf.lflags & LLITOUT); -#else - return(!(termbuf.c_oflag&OPOST)); -#endif -} - -#ifdef LINEMODE -int -tty_isediting(void) -{ -#ifndef USE_TERMIO - return(!(termbuf.sg.sg_flags & (CBREAK|RAW))); -#else - return(termbuf.c_lflag & ICANON); -#endif -} - -int -tty_istrapsig(void) -{ -#ifndef USE_TERMIO - return(!(termbuf.sg.sg_flags&RAW)); -#else - return(termbuf.c_lflag & ISIG); -#endif -} - -void -tty_setedit(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags &= ~CBREAK; - else - termbuf.sg.sg_flags |= CBREAK; -#else - if (on) - termbuf.c_lflag |= ICANON; - else - termbuf.c_lflag &= ~ICANON; -#endif -} - -void -tty_setsig(int on) -{ -#ifndef USE_TERMIO - if (on) - ; -#else - if (on) - termbuf.c_lflag |= ISIG; - else - termbuf.c_lflag &= ~ISIG; -#endif -} -#endif /* LINEMODE */ - -int -tty_issofttab(void) -{ -#ifndef USE_TERMIO - return (termbuf.sg.sg_flags & XTABS); -#else -# ifdef OXTABS - return (termbuf.c_oflag & OXTABS); -# endif -# ifdef TABDLY - return ((termbuf.c_oflag & TABDLY) == TAB3); -# endif -#endif -} - -void -tty_setsofttab(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags |= XTABS; - else - termbuf.sg.sg_flags &= ~XTABS; -#else - if (on) { -# ifdef OXTABS - termbuf.c_oflag |= OXTABS; -# endif -# ifdef TABDLY - termbuf.c_oflag &= ~TABDLY; - termbuf.c_oflag |= TAB3; -# endif - } else { -# ifdef OXTABS - termbuf.c_oflag &= ~OXTABS; -# endif -# ifdef TABDLY - termbuf.c_oflag &= ~TABDLY; - termbuf.c_oflag |= TAB0; -# endif - } -#endif -} - -int -tty_islitecho(void) -{ -#ifndef USE_TERMIO - return (!(termbuf.lflags & LCTLECH)); -#else -# ifdef ECHOCTL - return (!(termbuf.c_lflag & ECHOCTL)); -# endif -# ifdef TCTLECH - return (!(termbuf.c_lflag & TCTLECH)); -# endif -# if !defined(ECHOCTL) && !defined(TCTLECH) - return (0); /* assumes ctl chars are echoed '^x' */ -# endif -#endif -} - -void -tty_setlitecho(int on) -{ -#ifndef USE_TERMIO - if (on) - termbuf.lflags &= ~LCTLECH; - else - termbuf.lflags |= LCTLECH; -#else -# ifdef ECHOCTL - if (on) - termbuf.c_lflag &= ~ECHOCTL; - else - termbuf.c_lflag |= ECHOCTL; -# endif -# ifdef TCTLECH - if (on) - termbuf.c_lflag &= ~TCTLECH; - else - termbuf.c_lflag |= TCTLECH; -# endif -#endif -} - -int -tty_iscrnl(void) -{ -#ifndef USE_TERMIO - return (termbuf.sg.sg_flags & CRMOD); -#else - return (termbuf.c_iflag & ICRNL); -#endif -} - -/* - * Try to guess whether speeds are "encoded" (4.2BSD) or just numeric (4.4BSD). - */ -#if B4800 != 4800 -#define DECODE_BAUD -#endif - -#ifdef DECODE_BAUD - -/* - * A table of available terminal speeds - */ -struct termspeeds { - int speed; - int value; -} termspeeds[] = { - { 0, B0 }, { 50, B50 }, { 75, B75 }, - { 110, B110 }, { 134, B134 }, { 150, B150 }, - { 200, B200 }, { 300, B300 }, { 600, B600 }, - { 1200, B1200 }, { 1800, B1800 }, { 2400, B2400 }, - { 4800, B4800 }, -#ifdef B7200 - { 7200, B7200 }, -#endif - { 9600, B9600 }, -#ifdef B14400 - { 14400, B14400 }, -#endif -#ifdef B19200 - { 19200, B19200 }, -#endif -#ifdef B28800 - { 28800, B28800 }, -#endif -#ifdef B38400 - { 38400, B38400 }, -#endif -#ifdef B57600 - { 57600, B57600 }, -#endif -#ifdef B115200 - { 115200, B115200 }, -#endif -#ifdef B230400 - { 230400, B230400 }, -#endif - { -1, 0 } -}; -#endif /* DECODE_BAUD */ - -void -tty_tspeed(int val) -{ -#ifdef DECODE_BAUD - struct termspeeds *tp; - - for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++) - ; - if (tp->speed == -1) /* back up to last valid value */ - --tp; - cfsetospeed(&termbuf, tp->value); -#else /* DECODE_BAUD */ - cfsetospeed(&termbuf, val); -#endif /* DECODE_BAUD */ -} - -void -tty_rspeed(int val) -{ -#ifdef DECODE_BAUD - struct termspeeds *tp; - - for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++) - ; - if (tp->speed == -1) /* back up to last valid value */ - --tp; - cfsetispeed(&termbuf, tp->value); -#else /* DECODE_BAUD */ - cfsetispeed(&termbuf, val); -#endif /* DECODE_BAUD */ -} - -/* - * getptyslave() - * - * Open the slave side of the pty, and do any initialization - * that is necessary. - */ -static void -getptyslave(void) -{ - int t = -1; - char erase; - -# ifdef LINEMODE - int waslm; -# endif -# ifdef TIOCGWINSZ - struct winsize ws; - extern int def_row, def_col; -# endif - extern int def_tspeed, def_rspeed; - /* - * Opening the slave side may cause initilization of the - * kernel tty structure. We need remember the state of - * if linemode was turned on - * terminal window size - * terminal speed - * erase character - * so that we can re-set them if we need to. - */ -# ifdef LINEMODE - waslm = tty_linemode(); -# endif - erase = termbuf.c_cc[VERASE]; - - /* - * Make sure that we don't have a controlling tty, and - * that we are the session (process group) leader. - */ -# ifdef TIOCNOTTY - t = open(_PATH_TTY, O_RDWR); - if (t >= 0) { - (void) ioctl(t, TIOCNOTTY, (char *)0); - (void) close(t); - } -# endif - - t = cleanopen(line); - if (t < 0) - fatalperror(net, line); - - - /* - * set up the tty modes as we like them to be. - */ - init_termbuf(); -# ifdef TIOCGWINSZ - if (def_row || def_col) { - memset((char *)&ws, 0, sizeof(ws)); - ws.ws_col = def_col; - ws.ws_row = def_row; - (void)ioctl(t, TIOCSWINSZ, (char *)&ws); - } -# endif - - /* - * Settings for sgtty based systems - */ -# ifndef USE_TERMIO - termbuf.sg.sg_flags |= CRMOD|ANYP|ECHO|XTABS; -# endif /* USE_TERMIO */ - - /* - * Settings for all other termios/termio based - * systems, other than 4.4BSD. In 4.4BSD the - * kernel does the initial terminal setup. - */ - tty_rspeed((def_rspeed > 0) ? def_rspeed : 9600); - tty_tspeed((def_tspeed > 0) ? def_tspeed : 9600); - if (erase) - termbuf.c_cc[VERASE] = erase; -# ifdef LINEMODE - if (waslm) - tty_setlinemode(1); -# endif /* LINEMODE */ - - /* - * Set the tty modes, and make this our controlling tty. - */ - set_termbuf(); - if (login_tty(t) == -1) - fatalperror(net, "login_tty"); - if (net > 2) - (void) close(net); -} - -#ifndef O_NOCTTY -#define O_NOCTTY 0 -#endif -/* - * Open the specified slave side of the pty, - * making sure that we have a clean tty. - */ -int -cleanopen(char *li) -{ - int t; - - /* - * Make sure that other people can't open the - * slave side of the connection. - */ - (void) chown(li, 0, 0); - (void) chmod(li, 0600); - - (void) revoke(li); - - t = open(line, O_RDWR|O_NOCTTY); - - if (t < 0) - return(-1); - - return(t); -} - -/* - * startslave(host) - * - * Given a hostname, do whatever - * is necessary to startup the login process on the slave side of the pty. - */ - -/* ARGSUSED */ -void -startslave(char *host, int autologin, char *autoname) -{ - int i; - - - - if ((i = fork()) < 0) - fatalperror(net, "fork"); - if (i) { - } else { - getptyslave(); - start_login(host, autologin, autoname); - /*NOTREACHED*/ - } -} - -void -init_env(void) -{ - char **envp; - - envp = envinit; - if ((*envp = getenv("TZ"))) - *envp++ -= 3; - *envp = 0; - environ = envinit; -} - - -/* - * start_login(host) - * - * Assuming that we are now running as a child processes, this - * function will turn us into the login process. - */ - -#define undef1 __unused - -void -start_login(char *host undef1, int autologin undef1, char *name undef1) -{ - char **argv; - - scrub_env(); - - /* - * -h : pass on name of host. - * WARNING: -h is accepted by login if and only if - * getuid() == 0. - * -p : don't clobber the environment (so terminal type stays set). - * - * -f : force this login, he has already been authenticated - */ - argv = addarg(0, "login"); - -#if !defined(NO_LOGIN_H) -#endif -#if !defined(NO_LOGIN_P) - argv = addarg(argv, "-p"); -#endif -#ifdef LINEMODE - /* - * Set the environment variable "LINEMODE" to either - * "real" or "kludge" if we are operating in either - * real or kludge linemode. - */ - if (lmodetype == REAL_LINEMODE) - setenv("LINEMODE", "real", 1); -# ifdef KLUDGELINEMODE - else if (lmodetype == KLUDGE_LINEMODE || lmodetype == KLUDGE_OK) - setenv("LINEMODE", "kludge", 1); -# endif -#endif -#ifdef BFTPDAEMON - /* - * Are we working as the bftp daemon? If so, then ask login - * to start bftp instead of shell. - */ - if (bftpd) { - argv = addarg(argv, "-e"); - argv = addarg(argv, BFTPPATH); - } else -#endif - if (getenv("USER")) { - argv = addarg(argv, "--"); - argv = addarg(argv, getenv("USER")); -#if defined(LOGIN_ARGS) && defined(NO_LOGIN_P) - { - char **cpp; - for (cpp = environ; *cpp; cpp++) - argv = addarg(argv, *cpp); - } -#endif - /* - * Assume that login will set the USER variable - * correctly. For SysV systems, this means that - * USER will no longer be set, just LOGNAME by - * login. (The problem is that if the auto-login - * fails, and the user then specifies a different - * account name, he can get logged in with both - * LOGNAME and USER in his environment, but the - * USER value will be wrong. - */ - unsetenv("USER"); - } - closelog(); - - if (altlogin == NULL) { - altlogin = _PATH_LOGIN; - } - execv(altlogin, argv); - - syslog(LOG_ERR, "%s: %m", altlogin); - fatalperror(net, altlogin); - /*NOTREACHED*/ -} - -static char ** -addarg(char **argv, const char *val) -{ - char **cpp; - - if (argv == NULL) { - /* - * 10 entries, a leading length, and a null - */ - argv = (char **)malloc(sizeof(*argv) * 12); - if (argv == NULL) - return(NULL); - *argv++ = (char *)10; - *argv = (char *)0; - } - for (cpp = argv; *cpp; cpp++) - ; - if (cpp == &argv[(long)argv[-1]]) { - --argv; - *argv = (char *)((long)(*argv) + 10); - argv = (char **)realloc(argv, sizeof(*argv)*((long)(*argv) + 2)); - if (argv == NULL) - return(NULL); - argv++; - cpp = &argv[(long)argv[-1] - 10]; - } - *cpp++ = strdup(val); - *cpp = 0; - return(argv); -} - -/* - * scrub_env() - * - * We only accept the environment variables listed below. - */ -void -scrub_env(void) -{ - static const char *rej[] = { - "TERMCAP=/", - NULL - }; - - static const char *acc[] = { - "XAUTH=", "XAUTHORITY=", "DISPLAY=", - "TERM=", - "EDITOR=", - "PAGER=", - "LOGNAME=", - "POSIXLY_CORRECT=", - "PRINTER=", - NULL - }; - - char **cpp, **cpp2; - const char **p; - - for (cpp2 = cpp = environ; *cpp; cpp++) { - int reject_it = 0; - - for(p = rej; *p; p++) - if(strncmp(*cpp, *p, strlen(*p)) == 0) { - reject_it = 1; - break; - } - if (reject_it) - continue; - - for(p = acc; *p; p++) - if(strncmp(*cpp, *p, strlen(*p)) == 0) - break; - if(*p != NULL) - *cpp2++ = *cpp; - } - *cpp2 = NULL; -} - -/* - * cleanup() - * - * This is the routine to call when we are all through, to - * clean up anything that needs to be cleaned up. - */ -/* ARGSUSED */ -void -cleanup(int sig __unused) -{ - char *p; - sigset_t mask; - - p = line + sizeof(_PATH_DEV) - 1; - /* - * Block all signals before clearing the utmp entry. We don't want to - * be called again after calling logout() and then not add the wtmp - * entry because of not finding the corresponding entry in utmp. - */ - sigfillset(&mask); - sigprocmask(SIG_SETMASK, &mask, NULL); - if (logout(p)) - logwtmp(p, "", ""); - (void)chmod(line, 0666); - (void)chown(line, 0, 0); - *p = 'p'; - (void)chmod(line, 0666); - (void)chown(line, 0, 0); - (void) shutdown(net, 2); - _exit(1); -} diff --git a/libexec/telnetd/telnetd.8 b/libexec/telnetd/telnetd.8 deleted file mode 100644 index 306e15e..0000000 --- a/libexec/telnetd/telnetd.8 +++ /dev/null @@ -1,593 +0,0 @@ -.\" Copyright (c) 1983, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)telnetd.8 8.4 (Berkeley) 6/1/94 -.\" $FreeBSD$ -.\" -.Dd January 27, 2000 -.Dt TELNETD 8 -.Os -.Sh NAME -.Nm telnetd -.Nd DARPA -.Tn TELNET -protocol server -.Sh SYNOPSIS -.Nm /usr/libexec/telnetd -.Op Fl BUhlkn -.Op Fl D Ar debugmode -.Op Fl S Ar tos -.Op Fl X Ar authtype -.Op Fl a Ar authmode -.Op Fl edebug -.Op Fl p Ar loginprog -.Op Fl u Ar len -.Op Fl debug Op Ar port -.Sh DESCRIPTION -The -.Nm -utility is a server which supports the -.Tn DARPA -standard -.Tn TELNET -virtual terminal protocol. -The -.Nm -utility is normally invoked by the internet server (see -.Xr inetd 8 ) -for requests to connect to the -.Tn TELNET -port as indicated by the -.Pa /etc/services -file (see -.Xr services 5 ) . -The -.Fl debug -option may be used to start up -.Nm -manually, instead of through -.Xr inetd 8 . -If started up this way, -.Ar port -may be specified to run -.Nm -on an alternate -.Tn TCP -port number. -.Pp -The -.Nm -utility accepts the following options: -.Bl -tag -width indent -.It Fl a Ar authmode -This option may be used for specifying what mode should -be used for authentication. -Note that this option is only useful if -.Nm -has been compiled with support for the -.Dv AUTHENTICATION -option. -There are several valid values for -.Ar authmode : -.Bl -tag -width debug -.It Cm debug -Turn on authentication debugging code. -.It Cm user -Only allow connections when the remote user -can provide valid authentication information -to identify the remote user, -and is allowed access to the specified account -without providing a password. -.It Cm valid -Only allow connections when the remote user -can provide valid authentication information -to identify the remote user. -The -.Xr login 1 -command will provide any additional user verification -needed if the remote user is not allowed automatic -access to the specified account. -.It Cm other -Only allow connections that supply some authentication information. -This option is currently not supported -by any of the existing authentication mechanisms, -and is thus the same as specifying -.Fl a -.Cm valid . -.It Cm none -This is the default state. -Authentication information is not required. -If no or insufficient authentication information -is provided, then the -.Xr login 1 -program will provide the necessary user -verification. -.It Cm off -Disable the authentication code. -All user verification will happen through the -.Xr login 1 -program. -.El -.It Fl B -Specify bftp server mode. In this mode, -.Nm -causes login to start a -.Xr bftp 1 -session rather than the user's -normal shell. In bftp daemon mode normal -logins are not supported, and it must be used -on a port other than the normal -.Tn TELNET -port. -.It Fl D Ar debugmode -This option may be used for debugging purposes. -This allows -.Nm -to print out debugging information -to the connection, allowing the user to see what -.Nm -is doing. -There are several possible values for -.Ar debugmode : -.Bl -tag -width exercise -.It Cm options -Print information about the negotiation of -.Tn TELNET -options. -.It Cm report -Print the -.Cm options -information, plus some additional information -about what processing is going on. -.It Cm netdata -Display the data stream received by -.Nm . -.It Cm ptydata -Display data written to the pty. -.It Cm exercise -Has not been implemented yet. -.El -.It Fl debug -Enable debugging on each socket created by -.Nm -(see -.Dv SO_DEBUG -in -.Xr socket 2 ) . -.It Fl edebug -If -.Nm -has been compiled with support for data encryption, then the -.Fl edebug -option may be used to enable encryption debugging code. -.It Fl h -Disable the printing of host-specific information before -login has been completed. -.It Fl k -This option is only useful if -.Nm -has been compiled with both linemode and kludge linemode -support. If the -.Fl k -option is specified, then if the remote client does not -support the -.Dv LINEMODE -option, then -.Nm -will operate in character at a time mode. -It will still support kludge linemode, but will only -go into kludge linemode if the remote client requests -it. -(This is done by the client sending -.Dv DONT SUPPRESS-GO-AHEAD -and -.Dv DONT ECHO . ) -The -.Fl k -option is most useful when there are remote clients -that do not support kludge linemode, but pass the heuristic -(if they respond with -.Dv WILL TIMING-MARK -in response to a -.Dv DO TIMING-MARK ) -for kludge linemode support. -.It Fl l -Specify line mode. Try to force clients to use line- -at-a-time mode. -If the -.Dv LINEMODE -option is not supported, it will go -into kludge linemode. -.It Fl n -Disable -.Dv TCP -keep-alives. Normally -.Nm -enables the -.Tn TCP -keep-alive mechanism to probe connections that -have been idle for some period of time to determine -if the client is still there, so that idle connections -from machines that have crashed or can no longer -be reached may be cleaned up. -.It Fl p Ar loginprog -Specify an alternate -.Xr login 1 -command to run to complete the login. The alternate command must -understand the same command arguments as the standard login. -.It Fl S Ar tos -.It Fl u Ar len -This option is used to specify the size of the field -in the -.Dv utmp -structure that holds the remote host name. -If the resolved host name is longer than -.Ar len , -the dotted decimal value will be used instead. -This allows hosts with very long host names that -overflow this field to still be uniquely identified. -Specifying -.Fl u0 -indicates that only dotted decimal addresses -should be put into the -.Pa utmp -file. -.It Fl U -This option causes -.Nm -to refuse connections from addresses that -cannot be mapped back into a symbolic name -via the -.Xr gethostbyaddr 3 -routine. -.It Fl X Ar authtype -This option is only valid if -.Nm -has been built with support for the authentication option. -It disables the use of -.Ar authtype -authentication, and -can be used to temporarily disable -a specific authentication type without having to recompile -.Nm . -.El -.Pp -The -.Nm -utility operates by allocating a pseudo-terminal device (see -.Xr pty 4 ) -for a client, then creating a login process which has -the slave side of the pseudo-terminal as -.Dv stdin , -.Dv stdout -and -.Dv stderr . -The -.Nm -utility manipulates the master side of the pseudo-terminal, -implementing the -.Tn TELNET -protocol and passing characters -between the remote client and the login process. -.Pp -When a -.Tn TELNET -session is started up, -.Nm -sends -.Tn TELNET -options to the client side indicating -a willingness to do the -following -.Tn TELNET -options, which are described in more detail below: -.Bd -literal -offset indent -DO AUTHENTICATION -WILL ENCRYPT -DO TERMINAL TYPE -DO TSPEED -DO XDISPLOC -DO NEW-ENVIRON -DO ENVIRON -WILL SUPPRESS GO AHEAD -DO ECHO -DO LINEMODE -DO NAWS -WILL STATUS -DO LFLOW -DO TIMING-MARK -.Ed -.Pp -The pseudo-terminal allocated to the client is configured -to operate in -.Dq cooked -mode, and with -.Dv XTABS and -.Dv CRMOD -enabled (see -.Xr tty 4 ) . -.Pp -The -.Nm -utility has support for enabling locally the following -.Tn TELNET -options: -.Bl -tag -width "DO AUTHENTICATION" -.It "WILL ECHO" -When the -.Dv LINEMODE -option is enabled, a -.Dv WILL ECHO -or -.Dv WONT ECHO -will be sent to the client to indicate the -current state of terminal echoing. -When terminal echo is not desired, a -.Dv WILL ECHO -is sent to indicate that -.Nm -will take care of echoing any data that needs to be -echoed to the terminal, and then nothing is echoed. -When terminal echo is desired, a -.Dv WONT ECHO -is sent to indicate that -.Nm -will not be doing any terminal echoing, so the -client should do any terminal echoing that is needed. -.It "WILL BINARY" -Indicate that the client is willing to send a -8 bits of data, rather than the normal 7 bits -of the Network Virtual Terminal. -.It "WILL SGA" -Indicate that it will not be sending -.Dv IAC GA , -go ahead, commands. -.It "WILL STATUS" -Indicate a willingness to send the client, upon -request, of the current status of all -.Tn TELNET -options. -.It "WILL TIMING-MARK" -Whenever a -.Dv DO TIMING-MARK -command is received, it is always responded -to with a -.Dv WILL TIMING-MARK . -.It "WILL LOGOUT" -When a -.Dv DO LOGOUT -is received, a -.Dv WILL LOGOUT -is sent in response, and the -.Tn TELNET -session is shut down. -.It "WILL ENCRYPT" -Only sent if -.Nm -is compiled with support for data encryption, and -indicates a willingness to decrypt -the data stream. -.El -.Pp -The -.Nm -utility has support for enabling remotely the following -.Tn TELNET -options: -.Bl -tag -width "DO AUTHENTICATION" -.It "DO BINARY" -Sent to indicate that -.Nm -is willing to receive an 8 bit data stream. -.It "DO LFLOW" -Requests that the client handle flow control -characters remotely. -.It "DO ECHO" -This is not really supported, but is sent to identify a -.Bx 4.2 -.Xr telnet 1 -client, which will improperly respond with -.Dv WILL ECHO . -If a -.Dv WILL ECHO -is received, a -.Dv DONT ECHO -will be sent in response. -.It "DO TERMINAL-TYPE" -Indicate a desire to be able to request the -name of the type of terminal that is attached -to the client side of the connection. -.It "DO SGA" -Indicate that it does not need to receive -.Dv IAC GA , -the go ahead command. -.It "DO NAWS" -Requests that the client inform the server when -the window (display) size changes. -.It "DO TERMINAL-SPEED" -Indicate a desire to be able to request information -about the speed of the serial line to which -the client is attached. -.It "DO XDISPLOC" -Indicate a desire to be able to request the name -of the X Window System display that is associated with -the telnet client. -.It "DO NEW-ENVIRON" -Indicate a desire to be able to request environment -variable information, as described in RFC 1572. -.It "DO ENVIRON" -Indicate a desire to be able to request environment -variable information, as described in RFC 1408. -.It "DO LINEMODE" -Only sent if -.Nm -is compiled with support for linemode, and -requests that the client do line by line processing. -.It "DO TIMING-MARK" -Only sent if -.Nm -is compiled with support for both linemode and -kludge linemode, and the client responded with -.Dv WONT LINEMODE . -If the client responds with -.Dv WILL TM , -the it is assumed that the client supports -kludge linemode. -Note that the -.Op Fl k -option can be used to disable this. -.It "DO AUTHENTICATION" -Only sent if -.Nm -is compiled with support for authentication, and -indicates a willingness to receive authentication -information for automatic login. -.It "DO ENCRYPT" -Only sent if -.Nm -is compiled with support for data encryption, and -indicates a willingness to decrypt -the data stream. -.El -.Sh NOTES -By default -.Nm -will read the -.Em \&he , -.Em \&hn , -and -.Em \&im -capabilities from -.Pa /etc/gettytab -and use that information (if present) to determine -what to display before the login: prompt. You can -also use a System V style -.Pa /etc/issue -file by using the -.Em \&if -capability, which will override -.Em \&im . -The information specified in either -.Em \&im -or -.Em \&if -will be displayed to both console and remote logins. -.\" .Sh ENVIRONMENT -.Sh FILES -.Bl -tag -width /usr/ucb/bftp -compact -.It Pa /etc/services -.It Pa /etc/gettytab -.It Pa /etc/iptos -(if supported) -.It Pa /usr/ucb/bftp -(if supported) -.El -.Sh "SEE ALSO" -.Xr bftp 1 , -.Xr login 1 , -.Xr gettytab 5 , -.Xr telnet 1 -(if supported) -.Sh STANDARDS -.Bl -tag -compact -width RFC-1572 -.It Cm RFC-854 -.Tn TELNET -PROTOCOL SPECIFICATION -.It Cm RFC-855 -TELNET OPTION SPECIFICATIONS -.It Cm RFC-856 -TELNET BINARY TRANSMISSION -.It Cm RFC-857 -TELNET ECHO OPTION -.It Cm RFC-858 -TELNET SUPPRESS GO AHEAD OPTION -.It Cm RFC-859 -TELNET STATUS OPTION -.It Cm RFC-860 -TELNET TIMING MARK OPTION -.It Cm RFC-861 -TELNET EXTENDED OPTIONS - LIST OPTION -.It Cm RFC-885 -TELNET END OF RECORD OPTION -.It Cm RFC-1073 -Telnet Window Size Option -.It Cm RFC-1079 -Telnet Terminal Speed Option -.It Cm RFC-1091 -Telnet Terminal-Type Option -.It Cm RFC-1096 -Telnet X Display Location Option -.It Cm RFC-1123 -Requirements for Internet Hosts -- Application and Support -.It Cm RFC-1184 -Telnet Linemode Option -.It Cm RFC-1372 -Telnet Remote Flow Control Option -.It Cm RFC-1416 -Telnet Authentication Option -.It Cm RFC-1411 -Telnet Authentication: Kerberos Version 4 -.It Cm RFC-1412 -Telnet Authentication: SPX -.It Cm RFC-1571 -Telnet Environment Option Interoperability Issues -.It Cm RFC-1572 -Telnet Environment Option -.El -.Sh BUGS -Some -.Tn TELNET -commands are only partially implemented. -.Pp -Because of bugs in the original -.Bx 4.2 -.Xr telnet 1 , -.Nm -performs some dubious protocol exchanges to try to discover if the remote -client is, in fact, a -.Bx 4.2 -.Xr telnet 1 . -.Pp -Binary mode -has no common interpretation except between similar operating systems -(Unix in this case). -.Pp -The terminal type name received from the remote client is converted to -lower case. -.Pp -The -.Nm -utility never sends -.Tn TELNET -.Dv IAC GA -(go ahead) commands. -.Sh HISTORY -IPv6 support was added by WIDE/KAME project. diff --git a/libexec/telnetd/telnetd.c b/libexec/telnetd/telnetd.c deleted file mode 100644 index 042fea5..0000000 --- a/libexec/telnetd/telnetd.c +++ /dev/null @@ -1,1117 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)telnetd.c 8.4 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "telnetd.h" -#include "pathnames.h" - -#include <sys/mman.h> -#include <err.h> -#include <libutil.h> -#include <paths.h> -#include <termcap.h> -#include <utmp.h> - -#include <arpa/inet.h> - -#include <libtelnet/misc.h> - -char remote_hostname[MAXHOSTNAMELEN]; -size_t utmp_len = sizeof(remote_hostname) - 1; -int registerd_host_only = 0; - - -/* - * I/O data buffers, - * pointers, and counters. - */ -char ptyibuf[BUFSIZ], *ptyip = ptyibuf; -char ptyibuf2[BUFSIZ]; - -int readstream(int, char *, int); -void doit(struct sockaddr *); -int terminaltypeok(char *); - -int hostinfo = 1; /* do we print login banner? */ - -static int debug = 0; -int keepalive = 1; -const char *altlogin; - -void doit(struct sockaddr *); -int terminaltypeok(char *); -void startslave(char *, int, char *); -extern void usage(void); -static void _gettermname(void); - -/* - * The string to pass to getopt(). We do it this way so - * that only the actual options that we support will be - * passed off to getopt(). - */ -char valid_opts[] = { - 'd', ':', 'h', 'k', 'n', 'p', ':', 'S', ':', 'u', ':', 'U', - '4', '6', -#ifdef BFTPDAEMON - 'B', -#endif -#ifdef DIAGNOSTICS - 'D', ':', -#endif -#ifdef LINEMODE - 'l', -#endif - '\0' -}; - -int family = AF_INET; - -#ifndef MAXHOSTNAMELEN -#define MAXHOSTNAMELEN 256 -#endif /* MAXHOSTNAMELEN */ - -char *hostname; -char host_name[MAXHOSTNAMELEN]; - -extern void telnet(int, int, char *); - -int level; -char user_name[256]; - -int -main(int argc, char *argv[]) -{ - struct sockaddr_storage from; - int on = 1, fromlen; - int ch; -#if defined(IPPROTO_IP) && defined(IP_TOS) - int tos = -1; -#endif - - pfrontp = pbackp = ptyobuf; - netip = netibuf; - nfrontp = nbackp = netobuf; - - /* - * This initialization causes linemode to default to a configuration - * that works on all telnet clients, including the FreeBSD client. - * This is not quite the same as the telnet client issuing a "mode - * character" command, but has most of the same benefits, and is - * preferable since some clients (like usofts) don't have the - * mode character command anyway and linemode breaks things. - * The most notable symptom of fix is that csh "set filec" operations - * like <ESC> (filename completion) and ^D (choices) keys now work - * in telnet sessions and can be used more than once on the same line. - * CR/LF handling is also corrected in some termio modes. This - * change resolves problem reports bin/771 and bin/1037. - */ - - linemode=1; /*Default to mode that works on bulk of clients*/ - - while ((ch = getopt(argc, argv, valid_opts)) != -1) { - switch(ch) { - - -#ifdef BFTPDAEMON - case 'B': - bftpd++; - break; -#endif /* BFTPDAEMON */ - - case 'd': - if (strcmp(optarg, "ebug") == 0) { - debug++; - break; - } - usage(); - /* NOTREACHED */ - break; - -#ifdef DIAGNOSTICS - case 'D': - /* - * Check for desired diagnostics capabilities. - */ - if (!strcmp(optarg, "report")) { - diagnostic |= TD_REPORT|TD_OPTIONS; - } else if (!strcmp(optarg, "exercise")) { - diagnostic |= TD_EXERCISE; - } else if (!strcmp(optarg, "netdata")) { - diagnostic |= TD_NETDATA; - } else if (!strcmp(optarg, "ptydata")) { - diagnostic |= TD_PTYDATA; - } else if (!strcmp(optarg, "options")) { - diagnostic |= TD_OPTIONS; - } else { - usage(); - /* NOT REACHED */ - } - break; -#endif /* DIAGNOSTICS */ - - - case 'h': - hostinfo = 0; - break; - -#ifdef LINEMODE - case 'l': - alwayslinemode = 1; - break; -#endif /* LINEMODE */ - - case 'k': -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - lmodetype = NO_AUTOKLUDGE; -#else - /* ignore -k option if built without kludge linemode */ -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - break; - - case 'n': - keepalive = 0; - break; - - case 'p': - altlogin = optarg; - break; - - case 'S': -#ifdef HAS_GETTOS - if ((tos = parsetos(optarg, "tcp")) < 0) - warnx("%s%s%s", - "bad TOS argument '", optarg, - "'; will try to use default TOS"); -#else - warnx("TOS option unavailable; -S flag not supported"); -#endif - break; - - case 'u': - utmp_len = (size_t)atoi(optarg); - if (utmp_len >= sizeof(remote_hostname)) - utmp_len = sizeof(remote_hostname) - 1; - break; - - case 'U': - registerd_host_only = 1; - break; - - - case '4': - family = AF_INET; - break; - -#ifdef INET6 - case '6': - family = AF_INET6; - break; -#endif - - default: - warnx("%c: unknown option", ch); - /* FALLTHROUGH */ - case '?': - usage(); - /* NOTREACHED */ - } - } - - argc -= optind; - argv += optind; - - if (debug) { - int s, ns, foo, error; - const char *service = "telnet"; - struct addrinfo hints, *res; - - if (argc > 1) { - usage(); - /* NOT REACHED */ - } else if (argc == 1) - service = *argv; - - memset(&hints, 0, sizeof(hints)); - hints.ai_flags = AI_PASSIVE; - hints.ai_family = family; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = 0; - error = getaddrinfo(NULL, service, &hints, &res); - - if (error) { - errx(1, "tcp/%s: %s\n", service, gai_strerror(error)); - if (error == EAI_SYSTEM) - errx(1, "tcp/%s: %s\n", service, strerror(errno)); - usage(); - } - - s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); - if (s < 0) - err(1, "socket"); - (void) setsockopt(s, SOL_SOCKET, SO_REUSEADDR, - (char *)&on, sizeof(on)); - if (bind(s, res->ai_addr, res->ai_addrlen) < 0) - err(1, "bind"); - if (listen(s, 1) < 0) - err(1, "listen"); - foo = res->ai_addrlen; - ns = accept(s, res->ai_addr, &foo); - if (ns < 0) - err(1, "accept"); - (void) dup2(ns, 0); - (void) close(ns); - (void) close(s); -#ifdef convex - } else if (argc == 1) { - ; /* VOID*/ /* Just ignore the host/port name */ -#endif - } else if (argc > 0) { - usage(); - /* NOT REACHED */ - } - - openlog("telnetd", LOG_PID | LOG_ODELAY, LOG_DAEMON); - fromlen = sizeof (from); - if (getpeername(0, (struct sockaddr *)&from, &fromlen) < 0) { - warn("getpeername"); - _exit(1); - } - if (keepalive && - setsockopt(0, SOL_SOCKET, SO_KEEPALIVE, - (char *)&on, sizeof (on)) < 0) { - syslog(LOG_WARNING, "setsockopt (SO_KEEPALIVE): %m"); - } - -#if defined(IPPROTO_IP) && defined(IP_TOS) - if (from.ss_family == AF_INET) { -# if defined(HAS_GETTOS) - struct tosent *tp; - if (tos < 0 && (tp = gettosbyname("telnet", "tcp"))) - tos = tp->t_tos; -# endif - if (tos < 0) - tos = 020; /* Low Delay bit */ - if (tos - && (setsockopt(0, IPPROTO_IP, IP_TOS, - (char *)&tos, sizeof(tos)) < 0) - && (errno != ENOPROTOOPT) ) - syslog(LOG_WARNING, "setsockopt (IP_TOS): %m"); - } -#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ - net = 0; - doit((struct sockaddr *)&from); - /* NOTREACHED */ - return(0); -} /* end of main */ - - void -usage() -{ - fprintf(stderr, "usage: telnetd"); -#ifdef BFTPDAEMON - fprintf(stderr, " [-B]"); -#endif - fprintf(stderr, " [-debug]"); -#ifdef DIAGNOSTICS - fprintf(stderr, " [-D (options|report|exercise|netdata|ptydata)]\n\t"); -#endif - fprintf(stderr, " [-h]"); -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - fprintf(stderr, " [-k]"); -#endif -#ifdef LINEMODE - fprintf(stderr, " [-l]"); -#endif - fprintf(stderr, " [-n]"); - fprintf(stderr, "\n\t"); -#ifdef HAS_GETTOS - fprintf(stderr, " [-S tos]"); -#endif - fprintf(stderr, " [-u utmp_hostname_length] [-U]"); - fprintf(stderr, " [port]\n"); - exit(1); -} - -/* - * getterminaltype - * - * Ask the other end to send along its terminal type and speed. - * Output is the variable terminaltype filled in. - */ -static unsigned char ttytype_sbbuf[] = { - IAC, SB, TELOPT_TTYPE, TELQUAL_SEND, IAC, SE -}; - - -#define undef2 __unused - -static int -getterminaltype(char *name undef2) -{ - int retval = -1; - - settimer(baseline); - - send_do(TELOPT_TTYPE, 1); - send_do(TELOPT_TSPEED, 1); - send_do(TELOPT_XDISPLOC, 1); - send_do(TELOPT_NEW_ENVIRON, 1); - send_do(TELOPT_OLD_ENVIRON, 1); - while ( - his_will_wont_is_changing(TELOPT_TTYPE) || - his_will_wont_is_changing(TELOPT_TSPEED) || - his_will_wont_is_changing(TELOPT_XDISPLOC) || - his_will_wont_is_changing(TELOPT_NEW_ENVIRON) || - his_will_wont_is_changing(TELOPT_OLD_ENVIRON)) { - ttloop(); - } - if (his_state_is_will(TELOPT_TSPEED)) { - static unsigned char sb[] = - { IAC, SB, TELOPT_TSPEED, TELQUAL_SEND, IAC, SE }; - - output_datalen(sb, sizeof sb); - DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2);); - } - if (his_state_is_will(TELOPT_XDISPLOC)) { - static unsigned char sb[] = - { IAC, SB, TELOPT_XDISPLOC, TELQUAL_SEND, IAC, SE }; - - output_datalen(sb, sizeof sb); - DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2);); - } - if (his_state_is_will(TELOPT_NEW_ENVIRON)) { - static unsigned char sb[] = - { IAC, SB, TELOPT_NEW_ENVIRON, TELQUAL_SEND, IAC, SE }; - - output_datalen(sb, sizeof sb); - DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2);); - } - else if (his_state_is_will(TELOPT_OLD_ENVIRON)) { - static unsigned char sb[] = - { IAC, SB, TELOPT_OLD_ENVIRON, TELQUAL_SEND, IAC, SE }; - - output_datalen(sb, sizeof sb); - DIAG(TD_OPTIONS, printsub('>', sb + 2, sizeof sb - 2);); - } - if (his_state_is_will(TELOPT_TTYPE)) { - - output_datalen(ttytype_sbbuf, sizeof ttytype_sbbuf); - DIAG(TD_OPTIONS, printsub('>', ttytype_sbbuf + 2, - sizeof ttytype_sbbuf - 2);); - } - if (his_state_is_will(TELOPT_TSPEED)) { - while (sequenceIs(tspeedsubopt, baseline)) - ttloop(); - } - if (his_state_is_will(TELOPT_XDISPLOC)) { - while (sequenceIs(xdisplocsubopt, baseline)) - ttloop(); - } - if (his_state_is_will(TELOPT_NEW_ENVIRON)) { - while (sequenceIs(environsubopt, baseline)) - ttloop(); - } - if (his_state_is_will(TELOPT_OLD_ENVIRON)) { - while (sequenceIs(oenvironsubopt, baseline)) - ttloop(); - } - if (his_state_is_will(TELOPT_TTYPE)) { - char first[256], last[256]; - - while (sequenceIs(ttypesubopt, baseline)) - ttloop(); - - /* - * If the other side has already disabled the option, then - * we have to just go with what we (might) have already gotten. - */ - if (his_state_is_will(TELOPT_TTYPE) && !terminaltypeok(terminaltype)) { - (void) strncpy(first, terminaltype, sizeof(first)-1); - first[sizeof(first)-1] = '\0'; - for(;;) { - /* - * Save the unknown name, and request the next name. - */ - (void) strncpy(last, terminaltype, sizeof(last)-1); - last[sizeof(last)-1] = '\0'; - _gettermname(); - if (terminaltypeok(terminaltype)) - break; - if ((strncmp(last, terminaltype, sizeof(last)) == 0) || - his_state_is_wont(TELOPT_TTYPE)) { - /* - * We've hit the end. If this is the same as - * the first name, just go with it. - */ - if (strncmp(first, terminaltype, sizeof(first)) == 0) - break; - /* - * Get the terminal name one more time, so that - * RFC1091 compliant telnets will cycle back to - * the start of the list. - */ - _gettermname(); - if (strncmp(first, terminaltype, sizeof(first)) != 0) { - (void) strncpy(terminaltype, first, sizeof(terminaltype)-1); - terminaltype[sizeof(terminaltype)-1] = '\0'; - } - break; - } - } - } - } - return(retval); -} /* end of getterminaltype */ - -static void -_gettermname(void) -{ - /* - * If the client turned off the option, - * we can't send another request, so we - * just return. - */ - if (his_state_is_wont(TELOPT_TTYPE)) - return; - settimer(baseline); - output_datalen(ttytype_sbbuf, sizeof ttytype_sbbuf); - DIAG(TD_OPTIONS, printsub('>', ttytype_sbbuf + 2, - sizeof ttytype_sbbuf - 2);); - while (sequenceIs(ttypesubopt, baseline)) - ttloop(); -} - -int -terminaltypeok(char *s) -{ - char buf[1024]; - - if (terminaltype == NULL) - return(1); - - /* - * tgetent() will return 1 if the type is known, and - * 0 if it is not known. If it returns -1, it couldn't - * open the database. But if we can't open the database, - * it won't help to say we failed, because we won't be - * able to verify anything else. So, we treat -1 like 1. - */ - if (tgetent(buf, s) == 0) - return(0); - return(1); -} - -/* - * Get a pty, scan input lines. - */ -void -doit(struct sockaddr *who) -{ - int err_; /* XXX */ - int ptynum; - - /* - * Find an available pty to use. - */ -#ifndef convex - pty = getpty(&ptynum); - if (pty < 0) - fatal(net, "All network ports in use"); -#else - for (;;) { - char *lp; - - if ((lp = getpty()) == NULL) - fatal(net, "Out of ptys"); - - if ((pty = open(lp, 2)) >= 0) { - strlcpy(line,lp,sizeof(line)); - line[5] = 't'; - break; - } - } -#endif - - /* get name of connected client */ - if (realhostname_sa(remote_hostname, sizeof(remote_hostname) - 1, - who, who->sa_len) == HOSTNAME_INVALIDADDR && registerd_host_only) - fatal(net, "Couldn't resolve your address into a host name.\r\n\ - Please contact your net administrator"); - remote_hostname[sizeof(remote_hostname) - 1] = '\0'; - - trimdomain(remote_hostname, UT_HOSTSIZE); - if (!isdigit(remote_hostname[0]) && strlen(remote_hostname) > utmp_len) - err_ = getnameinfo(who, who->sa_len, remote_hostname, - sizeof(remote_hostname), NULL, 0, - NI_NUMERICHOST|NI_WITHSCOPEID); - /* XXX: do 'err_' check */ - - (void) gethostname(host_name, sizeof(host_name) - 1); - host_name[sizeof(host_name) - 1] = '\0'; - hostname = host_name; - - - init_env(); - /* - * get terminal type. - */ - *user_name = 0; - level = getterminaltype(user_name); - setenv("TERM", terminaltype ? terminaltype : "network", 1); - - telnet(net, pty, remote_hostname); /* begin server process */ - - /*NOTREACHED*/ -} /* end of doit */ - -/* - * Main loop. Select from pty and network, and - * hand data to telnet receiver finite state machine. - */ -void -telnet(int f, int p, char *host) -{ - int on = 1; -#define TABBUFSIZ 512 - char defent[TABBUFSIZ]; - char defstrs[TABBUFSIZ]; -#undef TABBUFSIZ - char *HE; - char *HN; - char *IM; - int nfd; - - /* - * Initialize the slc mapping table. - */ - get_slc_defaults(); - - /* - * Do some tests where it is desireable to wait for a response. - * Rather than doing them slowly, one at a time, do them all - * at once. - */ - if (my_state_is_wont(TELOPT_SGA)) - send_will(TELOPT_SGA, 1); - /* - * Is the client side a 4.2 (NOT 4.3) system? We need to know this - * because 4.2 clients are unable to deal with TCP urgent data. - * - * To find out, we send out a "DO ECHO". If the remote system - * answers "WILL ECHO" it is probably a 4.2 client, and we note - * that fact ("WILL ECHO" ==> that the client will echo what - * WE, the server, sends it; it does NOT mean that the client will - * echo the terminal input). - */ - send_do(TELOPT_ECHO, 1); - -#ifdef LINEMODE - if (his_state_is_wont(TELOPT_LINEMODE)) { - /* Query the peer for linemode support by trying to negotiate - * the linemode option. - */ - linemode = 0; - editmode = 0; - send_do(TELOPT_LINEMODE, 1); /* send do linemode */ - } -#endif /* LINEMODE */ - - /* - * Send along a couple of other options that we wish to negotiate. - */ - send_do(TELOPT_NAWS, 1); - send_will(TELOPT_STATUS, 1); - flowmode = 1; /* default flow control state */ - restartany = -1; /* uninitialized... */ - send_do(TELOPT_LFLOW, 1); - - /* - * Spin, waiting for a response from the DO ECHO. However, - * some REALLY DUMB telnets out there might not respond - * to the DO ECHO. So, we spin looking for NAWS, (most dumb - * telnets so far seem to respond with WONT for a DO that - * they don't understand...) because by the time we get the - * response, it will already have processed the DO ECHO. - * Kludge upon kludge. - */ - while (his_will_wont_is_changing(TELOPT_NAWS)) - ttloop(); - - /* - * But... - * The client might have sent a WILL NAWS as part of its - * startup code; if so, we'll be here before we get the - * response to the DO ECHO. We'll make the assumption - * that any implementation that understands about NAWS - * is a modern enough implementation that it will respond - * to our DO ECHO request; hence we'll do another spin - * waiting for the ECHO option to settle down, which is - * what we wanted to do in the first place... - */ - if (his_want_state_is_will(TELOPT_ECHO) && - his_state_is_will(TELOPT_NAWS)) { - while (his_will_wont_is_changing(TELOPT_ECHO)) - ttloop(); - } - /* - * On the off chance that the telnet client is broken and does not - * respond to the DO ECHO we sent, (after all, we did send the - * DO NAWS negotiation after the DO ECHO, and we won't get here - * until a response to the DO NAWS comes back) simulate the - * receipt of a will echo. This will also send a WONT ECHO - * to the client, since we assume that the client failed to - * respond because it believes that it is already in DO ECHO - * mode, which we do not want. - */ - if (his_want_state_is_will(TELOPT_ECHO)) { - DIAG(TD_OPTIONS, output_data("td: simulating recv\r\n")); - willoption(TELOPT_ECHO); - } - - /* - * Finally, to clean things up, we turn on our echo. This - * will break stupid 4.2 telnets out of local terminal echo. - */ - - if (my_state_is_wont(TELOPT_ECHO)) - send_will(TELOPT_ECHO, 1); - - /* - * Turn on packet mode - */ - (void) ioctl(p, TIOCPKT, (char *)&on); - -#if defined(LINEMODE) && defined(KLUDGELINEMODE) - /* - * Continuing line mode support. If client does not support - * real linemode, attempt to negotiate kludge linemode by sending - * the do timing mark sequence. - */ - if (lmodetype < REAL_LINEMODE) - send_do(TELOPT_TM, 1); -#endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ - - /* - * Call telrcv() once to pick up anything received during - * terminal type negotiation, 4.2/4.3 determination, and - * linemode negotiation. - */ - telrcv(); - - (void) ioctl(f, FIONBIO, (char *)&on); - (void) ioctl(p, FIONBIO, (char *)&on); - -#if defined(SO_OOBINLINE) - (void) setsockopt(net, SOL_SOCKET, SO_OOBINLINE, - (char *)&on, sizeof on); -#endif /* defined(SO_OOBINLINE) */ - -#ifdef SIGTSTP - (void) signal(SIGTSTP, SIG_IGN); -#endif -#ifdef SIGTTOU - /* - * Ignoring SIGTTOU keeps the kernel from blocking us - * in ttioct() in /sys/tty.c. - */ - (void) signal(SIGTTOU, SIG_IGN); -#endif - - (void) signal(SIGCHLD, cleanup); - -#ifdef TIOCNOTTY - { - int t; - t = open(_PATH_TTY, O_RDWR); - if (t >= 0) { - (void) ioctl(t, TIOCNOTTY, (char *)0); - (void) close(t); - } - } -#endif - - /* - * Show banner that getty never gave. - * - * We put the banner in the pty input buffer. This way, it - * gets carriage return null processing, etc., just like all - * other pty --> client data. - */ - - if (getent(defent, "default") == 1) { - char *cp=defstrs; - - HE = Getstr("he", &cp); - HN = Getstr("hn", &cp); - IM = Getstr("im", &cp); - if (HN && *HN) - (void) strlcpy(host_name, HN, sizeof(host_name)); - if (IM == 0) - IM = strdup(""); - } else { - IM = strdup(DEFAULT_IM); - HE = 0; - } - edithost(HE, host_name); - if (hostinfo && *IM) - putf(IM, ptyibuf2); - - if (pcc) - (void) strncat(ptyibuf2, ptyip, pcc+1); - ptyip = ptyibuf2; - pcc = strlen(ptyip); -#ifdef LINEMODE - /* - * Last check to make sure all our states are correct. - */ - init_termbuf(); - localstat(); -#endif /* LINEMODE */ - - DIAG(TD_REPORT, output_data("td: Entering processing loop\r\n")); - - /* - * Startup the login process on the slave side of the terminal - * now. We delay this until here to insure option negotiation - * is complete. - */ - startslave(host, level, user_name); - - nfd = ((f > p) ? f : p) + 1; - for (;;) { - fd_set ibits, obits, xbits; - int c; - - if (ncc < 0 && pcc < 0) - break; - - FD_ZERO(&ibits); - FD_ZERO(&obits); - FD_ZERO(&xbits); - /* - * Never look for input if there's still - * stuff in the corresponding output buffer - */ - if (nfrontp - nbackp || pcc > 0) { - FD_SET(f, &obits); - } else { - FD_SET(p, &ibits); - } - if (pfrontp - pbackp || ncc > 0) { - FD_SET(p, &obits); - } else { - FD_SET(f, &ibits); - } - if (!SYNCHing) { - FD_SET(f, &xbits); - } - if ((c = select(nfd, &ibits, &obits, &xbits, - (struct timeval *)0)) < 1) { - if (c == -1) { - if (errno == EINTR) { - continue; - } - } - sleep(5); - continue; - } - - /* - * Any urgent data? - */ - if (FD_ISSET(net, &xbits)) { - SYNCHing = 1; - } - - /* - * Something to read from the network... - */ - if (FD_ISSET(net, &ibits)) { -#if !defined(SO_OOBINLINE) - /* - * In 4.2 (and 4.3 beta) systems, the - * OOB indication and data handling in the kernel - * is such that if two separate TCP Urgent requests - * come in, one byte of TCP data will be overlaid. - * This is fatal for Telnet, but we try to live - * with it. - * - * In addition, in 4.2 (and...), a special protocol - * is needed to pick up the TCP Urgent data in - * the correct sequence. - * - * What we do is: if we think we are in urgent - * mode, we look to see if we are "at the mark". - * If we are, we do an OOB receive. If we run - * this twice, we will do the OOB receive twice, - * but the second will fail, since the second - * time we were "at the mark", but there wasn't - * any data there (the kernel doesn't reset - * "at the mark" until we do a normal read). - * Once we've read the OOB data, we go ahead - * and do normal reads. - * - * There is also another problem, which is that - * since the OOB byte we read doesn't put us - * out of OOB state, and since that byte is most - * likely the TELNET DM (data mark), we would - * stay in the TELNET SYNCH (SYNCHing) state. - * So, clocks to the rescue. If we've "just" - * received a DM, then we test for the - * presence of OOB data when the receive OOB - * fails (and AFTER we did the normal mode read - * to clear "at the mark"). - */ - if (SYNCHing) { - int atmark; - - (void) ioctl(net, SIOCATMARK, (char *)&atmark); - if (atmark) { - ncc = recv(net, netibuf, sizeof (netibuf), MSG_OOB); - if ((ncc == -1) && (errno == EINVAL)) { - ncc = read(net, netibuf, sizeof (netibuf)); - if (sequenceIs(didnetreceive, gotDM)) { - SYNCHing = stilloob(net); - } - } - } else { - ncc = read(net, netibuf, sizeof (netibuf)); - } - } else { - ncc = read(net, netibuf, sizeof (netibuf)); - } - settimer(didnetreceive); -#else /* !defined(SO_OOBINLINE)) */ - ncc = read(net, netibuf, sizeof (netibuf)); -#endif /* !defined(SO_OOBINLINE)) */ - if (ncc < 0 && errno == EWOULDBLOCK) - ncc = 0; - else { - if (ncc <= 0) { - break; - } - netip = netibuf; - } - DIAG((TD_REPORT | TD_NETDATA), - output_data("td: netread %d chars\r\n", ncc)); - DIAG(TD_NETDATA, printdata("nd", netip, ncc)); - } - - /* - * Something to read from the pty... - */ - if (FD_ISSET(p, &ibits)) { - pcc = read(p, ptyibuf, BUFSIZ); - /* - * On some systems, if we try to read something - * off the master side before the slave side is - * opened, we get EIO. - */ - if (pcc < 0 && (errno == EWOULDBLOCK || -#ifdef EAGAIN - errno == EAGAIN || -#endif - errno == EIO)) { - pcc = 0; - } else { - if (pcc <= 0) - break; -#ifdef LINEMODE - /* - * If ioctl from pty, pass it through net - */ - if (ptyibuf[0] & TIOCPKT_IOCTL) { - copy_termbuf(ptyibuf+1, pcc-1); - localstat(); - pcc = 1; - } -#endif /* LINEMODE */ - if (ptyibuf[0] & TIOCPKT_FLUSHWRITE) { - netclear(); /* clear buffer back */ -#ifndef NO_URGENT - /* - * There are client telnets on some - * operating systems get screwed up - * royally if we send them urgent - * mode data. - */ - output_data("%c%c", IAC, DM); - neturg = nfrontp-1; /* off by one XXX */ - DIAG(TD_OPTIONS, - printoption("td: send IAC", DM)); - -#endif - } - if (his_state_is_will(TELOPT_LFLOW) && - (ptyibuf[0] & - (TIOCPKT_NOSTOP|TIOCPKT_DOSTOP))) { - int newflow = - ptyibuf[0] & TIOCPKT_DOSTOP ? 1 : 0; - if (newflow != flowmode) { - flowmode = newflow; - output_data("%c%c%c%c%c%c", - IAC, SB, TELOPT_LFLOW, - flowmode ? LFLOW_ON - : LFLOW_OFF, - IAC, SE); - DIAG(TD_OPTIONS, printsub('>', - (unsigned char *)nfrontp-4, - 4);); - } - } - pcc--; - ptyip = ptyibuf+1; - } - } - - while (pcc > 0) { - if ((&netobuf[BUFSIZ] - nfrontp) < 2) - break; - c = *ptyip++ & 0377, pcc--; - if (c == IAC) - output_data("%c", c); - output_data("%c", c); - if ((c == '\r') && (my_state_is_wont(TELOPT_BINARY))) { - if (pcc > 0 && ((*ptyip & 0377) == '\n')) { - output_data("%c", *ptyip++ & 0377); - pcc--; - } else - output_data("%c", '\0'); - } - } - - if (FD_ISSET(f, &obits) && (nfrontp - nbackp) > 0) - netflush(); - if (ncc > 0) - telrcv(); - if (FD_ISSET(p, &obits) && (pfrontp - pbackp) > 0) - ptyflush(); - } - cleanup(0); -} /* end of telnet */ - -#ifndef TCSIG -# ifdef TIOCSIG -# define TCSIG TIOCSIG -# endif -#endif - -/* - * Send interrupt to process on other side of pty. - * If it is in raw mode, just write NULL; - * otherwise, write intr char. - */ -void -interrupt(void) -{ - ptyflush(); /* half-hearted */ - -#ifdef TCSIG - (void) ioctl(pty, TCSIG, (char *)SIGINT); -#else /* TCSIG */ - init_termbuf(); - *pfrontp++ = slctab[SLC_IP].sptr ? - (unsigned char)*slctab[SLC_IP].sptr : '\177'; -#endif /* TCSIG */ -} - -/* - * Send quit to process on other side of pty. - * If it is in raw mode, just write NULL; - * otherwise, write quit char. - */ -void -sendbrk(void) -{ - ptyflush(); /* half-hearted */ -#ifdef TCSIG - (void) ioctl(pty, TCSIG, (char *)SIGQUIT); -#else /* TCSIG */ - init_termbuf(); - *pfrontp++ = slctab[SLC_ABORT].sptr ? - (unsigned char)*slctab[SLC_ABORT].sptr : '\034'; -#endif /* TCSIG */ -} - -void -sendsusp(void) -{ -#ifdef SIGTSTP - ptyflush(); /* half-hearted */ -# ifdef TCSIG - (void) ioctl(pty, TCSIG, (char *)SIGTSTP); -# else /* TCSIG */ - *pfrontp++ = slctab[SLC_SUSP].sptr ? - (unsigned char)*slctab[SLC_SUSP].sptr : '\032'; -# endif /* TCSIG */ -#endif /* SIGTSTP */ -} - -/* - * When we get an AYT, if ^T is enabled, use that. Otherwise, - * just send back "[Yes]". - */ -void -recv_ayt(void) -{ -#if defined(SIGINFO) && defined(TCSIG) - if (slctab[SLC_AYT].sptr && *slctab[SLC_AYT].sptr != _POSIX_VDISABLE) { - (void) ioctl(pty, TCSIG, (char *)SIGINFO); - return; - } -#endif - output_data("\r\n[Yes]\r\n"); -} - -void -doeof(void) -{ - init_termbuf(); - -#if defined(LINEMODE) && defined(USE_TERMIO) && (VEOF == VMIN) - if (!tty_isediting()) { - extern char oldeofc; - *pfrontp++ = oldeofc; - return; - } -#endif - *pfrontp++ = slctab[SLC_EOF].sptr ? - (unsigned char)*slctab[SLC_EOF].sptr : '\004'; -} diff --git a/libexec/telnetd/telnetd.h b/libexec/telnetd/telnetd.h deleted file mode 100644 index 5bfc572..0000000 --- a/libexec/telnetd/telnetd.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)telnetd.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - - -#include "defs.h" -#include "ext.h" - -#ifdef DIAGNOSTICS -#define DIAG(a,b) if (diagnostic & (a)) b -#else -#define DIAG(a,b) -#endif - -/* other external variables */ -extern char **environ; -extern const char *altlogin; diff --git a/libexec/telnetd/termstat.c b/libexec/telnetd/termstat.c deleted file mode 100644 index 8d8257d..0000000 --- a/libexec/telnetd/termstat.c +++ /dev/null @@ -1,610 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)termstat.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "telnetd.h" - - -/* - * local variables - */ -int def_tspeed = -1, def_rspeed = -1; -#ifdef TIOCSWINSZ -int def_row = 0, def_col = 0; -#endif -#ifdef LINEMODE -static int _terminit = 0; -#endif /* LINEMODE */ - -#ifdef LINEMODE -/* - * localstat - * - * This function handles all management of linemode. - * - * Linemode allows the client to do the local editing of data - * and send only complete lines to the server. Linemode state is - * based on the state of the pty driver. If the pty is set for - * external processing, then we can use linemode. Further, if we - * can use real linemode, then we can look at the edit control bits - * in the pty to determine what editing the client should do. - * - * Linemode support uses the following state flags to keep track of - * current and desired linemode state. - * alwayslinemode : true if -l was specified on the telnetd - * command line. It means to have linemode on as much as - * possible. - * - * lmodetype: signifies whether the client can - * handle real linemode, or if use of kludgeomatic linemode - * is preferred. It will be set to one of the following: - * REAL_LINEMODE : use linemode option - * NO_KLUDGE : don't initiate kludge linemode. - * KLUDGE_LINEMODE : use kludge linemode - * NO_LINEMODE : client is ignorant of linemode - * - * linemode, uselinemode : linemode is true if linemode - * is currently on, uselinemode is the state that we wish - * to be in. If another function wishes to turn linemode - * on or off, it sets or clears uselinemode. - * - * editmode, useeditmode : like linemode/uselinemode, but - * these contain the edit mode states (edit and trapsig). - * - * The state variables correspond to some of the state information - * in the pty. - * linemode: - * In real linemode, this corresponds to whether the pty - * expects external processing of incoming data. - * In kludge linemode, this more closely corresponds to the - * whether normal processing is on or not. (ICANON in - * system V, or COOKED mode in BSD.) - * If the -l option was specified (alwayslinemode), then - * an attempt is made to force external processing on at - * all times. - * - * The following heuristics are applied to determine linemode - * handling within the server. - * 1) Early on in starting up the server, an attempt is made - * to negotiate the linemode option. If this succeeds - * then lmodetype is set to REAL_LINEMODE and all linemode - * processing occurs in the context of the linemode option. - * 2) If the attempt to negotiate the linemode option failed, - * and the "-k" (don't initiate kludge linemode) isn't set, - * then we try to use kludge linemode. We test for this - * capability by sending "do Timing Mark". If a positive - * response comes back, then we assume that the client - * understands kludge linemode (ech!) and the - * lmodetype flag is set to KLUDGE_LINEMODE. - * 3) Otherwise, linemode is not supported at all and - * lmodetype remains set to NO_LINEMODE (which happens - * to be 0 for convenience). - * 4) At any time a command arrives that implies a higher - * state of linemode support in the client, we move to that - * linemode support. - * - * A short explanation of kludge linemode is in order here. - * 1) The heuristic to determine support for kludge linemode - * is to send a do timing mark. We assume that a client - * that supports timing marks also supports kludge linemode. - * A risky proposition at best. - * 2) Further negotiation of linemode is done by changing the - * the server's state regarding SGA. If server will SGA, - * then linemode is off, if server won't SGA, then linemode - * is on. - */ -void -localstat(void) -{ - int need_will_echo = 0; - - /* - * Check for changes to flow control if client supports it. - */ - flowstat(); - - /* - * Check linemode on/off state - */ - uselinemode = tty_linemode(); - - /* - * If alwayslinemode is on, and pty is changing to turn it off, then - * force linemode back on. - */ - if (alwayslinemode && linemode && !uselinemode) { - uselinemode = 1; - tty_setlinemode(uselinemode); - } - - if (uselinemode) { - /* - * Check for state of BINARY options. - * - * We only need to do the binary dance if we are actually going - * to use linemode. As this confuses some telnet clients - * that don't support linemode, and doesn't gain us - * anything, we don't do it unless we're doing linemode. - * -Crh (henrich@msu.edu) - */ - - if (tty_isbinaryin()) { - if (his_want_state_is_wont(TELOPT_BINARY)) - send_do(TELOPT_BINARY, 1); - } else { - if (his_want_state_is_will(TELOPT_BINARY)) - send_dont(TELOPT_BINARY, 1); - } - - if (tty_isbinaryout()) { - if (my_want_state_is_wont(TELOPT_BINARY)) - send_will(TELOPT_BINARY, 1); - } else { - if (my_want_state_is_will(TELOPT_BINARY)) - send_wont(TELOPT_BINARY, 1); - } - } - - - /* - * Do echo mode handling as soon as we know what the - * linemode is going to be. - * If the pty has echo turned off, then tell the client that - * the server will echo. If echo is on, then the server - * will echo if in character mode, but in linemode the - * client should do local echoing. The state machine will - * not send anything if it is unnecessary, so don't worry - * about that here. - * - * If we need to send the WILL ECHO (because echo is off), - * then delay that until after we have changed the MODE. - * This way, when the user is turning off both editing - * and echo, the client will get editing turned off first. - * This keeps the client from going into encryption mode - * and then right back out if it is doing auto-encryption - * when passwords are being typed. - */ - if (uselinemode) { - if (tty_isecho()) - send_wont(TELOPT_ECHO, 1); - else - need_will_echo = 1; -#ifdef KLUDGELINEMODE - if (lmodetype == KLUDGE_OK) - lmodetype = KLUDGE_LINEMODE; -#endif - } - - /* - * If linemode is being turned off, send appropriate - * command and then we're all done. - */ - if (!uselinemode && linemode) { -# ifdef KLUDGELINEMODE - if (lmodetype == REAL_LINEMODE) { -# endif /* KLUDGELINEMODE */ - send_dont(TELOPT_LINEMODE, 1); -# ifdef KLUDGELINEMODE - } else if (lmodetype == KLUDGE_LINEMODE) - send_will(TELOPT_SGA, 1); -# endif /* KLUDGELINEMODE */ - send_will(TELOPT_ECHO, 1); - linemode = uselinemode; - goto done; - } - -# ifdef KLUDGELINEMODE - /* - * If using real linemode check edit modes for possible later use. - * If we are in kludge linemode, do the SGA negotiation. - */ - if (lmodetype == REAL_LINEMODE) { -# endif /* KLUDGELINEMODE */ - useeditmode = 0; - if (tty_isediting()) - useeditmode |= MODE_EDIT; - if (tty_istrapsig()) - useeditmode |= MODE_TRAPSIG; - if (tty_issofttab()) - useeditmode |= MODE_SOFT_TAB; - if (tty_islitecho()) - useeditmode |= MODE_LIT_ECHO; -# ifdef KLUDGELINEMODE - } else if (lmodetype == KLUDGE_LINEMODE) { - if (tty_isediting() && uselinemode) - send_wont(TELOPT_SGA, 1); - else - send_will(TELOPT_SGA, 1); - } -# endif /* KLUDGELINEMODE */ - - /* - * Negotiate linemode on if pty state has changed to turn it on. - * Send appropriate command and send along edit mode, then all done. - */ - if (uselinemode && !linemode) { -# ifdef KLUDGELINEMODE - if (lmodetype == KLUDGE_LINEMODE) { - send_wont(TELOPT_SGA, 1); - } else if (lmodetype == REAL_LINEMODE) { -# endif /* KLUDGELINEMODE */ - send_do(TELOPT_LINEMODE, 1); - /* send along edit modes */ - output_data("%c%c%c%c%c%c%c", IAC, SB, - TELOPT_LINEMODE, LM_MODE, useeditmode, - IAC, SE); - editmode = useeditmode; -# ifdef KLUDGELINEMODE - } -# endif /* KLUDGELINEMODE */ - linemode = uselinemode; - goto done; - } - -# ifdef KLUDGELINEMODE - /* - * None of what follows is of any value if not using - * real linemode. - */ - if (lmodetype < REAL_LINEMODE) - goto done; -# endif /* KLUDGELINEMODE */ - - if (linemode && his_state_is_will(TELOPT_LINEMODE)) { - /* - * If edit mode changed, send edit mode. - */ - if (useeditmode != editmode) { - /* - * Send along appropriate edit mode mask. - */ - output_data("%c%c%c%c%c%c%c", IAC, SB, - TELOPT_LINEMODE, LM_MODE, useeditmode, - IAC, SE); - editmode = useeditmode; - } - - - /* - * Check for changes to special characters in use. - */ - start_slc(0); - check_slc(); - (void) end_slc(0); - } - -done: - if (need_will_echo) - send_will(TELOPT_ECHO, 1); - /* - * Some things should be deferred until after the pty state has - * been set by the local process. Do those things that have been - * deferred now. This only happens once. - */ - if (_terminit == 0) { - _terminit = 1; - defer_terminit(); - } - - netflush(); - set_termbuf(); - return; - -} /* end of localstat */ -#endif /* LINEMODE */ - -/* - * flowstat - * - * Check for changes to flow control - */ -void -flowstat(void) -{ - if (his_state_is_will(TELOPT_LFLOW)) { - if (tty_flowmode() != flowmode) { - flowmode = tty_flowmode(); - output_data("%c%c%c%c%c%c", - IAC, SB, TELOPT_LFLOW, - flowmode ? LFLOW_ON : LFLOW_OFF, - IAC, SE); - } - if (tty_restartany() != restartany) { - restartany = tty_restartany(); - output_data("%c%c%c%c%c%c", - IAC, SB, TELOPT_LFLOW, - restartany ? LFLOW_RESTART_ANY - : LFLOW_RESTART_XON, - IAC, SE); - } - } -} - -/* - * clientstat - * - * Process linemode related requests from the client. - * Client can request a change to only one of linemode, editmode or slc's - * at a time, and if using kludge linemode, then only linemode may be - * affected. - */ -void -clientstat(int code, int parm1, int parm2) -{ - - /* - * Get a copy of terminal characteristics. - */ - init_termbuf(); - - /* - * Process request from client. code tells what it is. - */ - switch (code) { -#ifdef LINEMODE - case TELOPT_LINEMODE: - /* - * Don't do anything unless client is asking us to change - * modes. - */ - uselinemode = (parm1 == WILL); - if (uselinemode != linemode) { -# ifdef KLUDGELINEMODE - /* - * If using kludge linemode, make sure that - * we can do what the client asks. - * We can not turn off linemode if alwayslinemode - * and the ICANON bit is set. - */ - if (lmodetype == KLUDGE_LINEMODE) { - if (alwayslinemode && tty_isediting()) { - uselinemode = 1; - } - } - - /* - * Quit now if we can't do it. - */ - if (uselinemode == linemode) - return; - - /* - * If using real linemode and linemode is being - * turned on, send along the edit mode mask. - */ - if (lmodetype == REAL_LINEMODE && uselinemode) -# else /* KLUDGELINEMODE */ - if (uselinemode) -# endif /* KLUDGELINEMODE */ - { - useeditmode = 0; - if (tty_isediting()) - useeditmode |= MODE_EDIT; - if (tty_istrapsig) - useeditmode |= MODE_TRAPSIG; - if (tty_issofttab()) - useeditmode |= MODE_SOFT_TAB; - if (tty_islitecho()) - useeditmode |= MODE_LIT_ECHO; - output_data("%c%c%c%c%c%c%c", IAC, - SB, TELOPT_LINEMODE, LM_MODE, - useeditmode, IAC, SE); - editmode = useeditmode; - } - - - tty_setlinemode(uselinemode); - - linemode = uselinemode; - - if (!linemode) - send_will(TELOPT_ECHO, 1); - } - break; - - case LM_MODE: - { - int ack, changed; - - /* - * Client has sent along a mode mask. If it agrees with - * what we are currently doing, ignore it; if not, it could - * be viewed as a request to change. Note that the server - * will change to the modes in an ack if it is different from - * what we currently have, but we will not ack the ack. - */ - useeditmode &= MODE_MASK; - ack = (useeditmode & MODE_ACK); - useeditmode &= ~MODE_ACK; - - if ((changed = (useeditmode ^ editmode))) { - /* - * This check is for a timing problem. If the - * state of the tty has changed (due to the user - * application) we need to process that info - * before we write in the state contained in the - * ack!!! This gets out the new MODE request, - * and when the ack to that command comes back - * we'll set it and be in the right mode. - */ - if (ack) - localstat(); - if (changed & MODE_EDIT) - tty_setedit(useeditmode & MODE_EDIT); - - if (changed & MODE_TRAPSIG) - tty_setsig(useeditmode & MODE_TRAPSIG); - - if (changed & MODE_SOFT_TAB) - tty_setsofttab(useeditmode & MODE_SOFT_TAB); - - if (changed & MODE_LIT_ECHO) - tty_setlitecho(useeditmode & MODE_LIT_ECHO); - - set_termbuf(); - - if (!ack) { - output_data("%c%c%c%c%c%c%c", IAC, - SB, TELOPT_LINEMODE, LM_MODE, - useeditmode|MODE_ACK, - IAC, SE); - } - - editmode = useeditmode; - } - - break; - - } /* end of case LM_MODE */ -#endif /* LINEMODE */ - - case TELOPT_NAWS: -#ifdef TIOCSWINSZ - { - struct winsize ws; - - def_col = parm1; - def_row = parm2; -#ifdef LINEMODE - /* - * Defer changing window size until after terminal is - * initialized. - */ - if (terminit() == 0) - return; -#endif /* LINEMODE */ - - /* - * Change window size as requested by client. - */ - - ws.ws_col = parm1; - ws.ws_row = parm2; - (void) ioctl(pty, TIOCSWINSZ, (char *)&ws); - } -#endif /* TIOCSWINSZ */ - - break; - - case TELOPT_TSPEED: - { - def_tspeed = parm1; - def_rspeed = parm2; -#ifdef LINEMODE - /* - * Defer changing the terminal speed. - */ - if (terminit() == 0) - return; -#endif /* LINEMODE */ - /* - * Change terminal speed as requested by client. - * We set the receive speed first, so that if we can't - * store separate receive and transmit speeds, the transmit - * speed will take precedence. - */ - tty_rspeed(parm2); - tty_tspeed(parm1); - set_termbuf(); - - break; - - } /* end of case TELOPT_TSPEED */ - - default: - /* What? */ - break; - } /* end of switch */ - - netflush(); - -} /* end of clientstat */ - -#ifdef LINEMODE -/* - * defer_terminit - * - * Some things should not be done until after the login process has started - * and all the pty modes are set to what they are supposed to be. This - * function is called when the pty state has been processed for the first time. - * It calls other functions that do things that were deferred in each module. - */ -void -defer_terminit(void) -{ - - /* - * local stuff that got deferred. - */ - if (def_tspeed != -1) { - clientstat(TELOPT_TSPEED, def_tspeed, def_rspeed); - def_tspeed = def_rspeed = 0; - } - -#ifdef TIOCSWINSZ - if (def_col || def_row) { - struct winsize ws; - - memset((char *)&ws, 0, sizeof(ws)); - ws.ws_col = def_col; - ws.ws_row = def_row; - (void) ioctl(pty, TIOCSWINSZ, (char *)&ws); - } -#endif - - /* - * The only other module that currently defers anything. - */ - deferslc(); - -} /* end of defer_terminit */ - -/* - * terminit - * - * Returns true if the pty state has been processed yet. - */ -int -terminit(void) -{ - return(_terminit); - -} /* end of terminit */ -#endif /* LINEMODE */ diff --git a/libexec/telnetd/utility.c b/libexec/telnetd/utility.c deleted file mode 100644 index 042b248..0000000 --- a/libexec/telnetd/utility.c +++ /dev/null @@ -1,900 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)utility.c 8.4 (Berkeley) 5/30/95"; -#endif /* not lint */ -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#ifdef __FreeBSD__ -#include <locale.h> -#include <sys/utsname.h> -#endif -#include <string.h> -#define PRINTOPTIONS -#include "telnetd.h" - - -/* - * utility functions performing io related tasks - */ - -/* - * ttloop - * - * A small subroutine to flush the network output buffer, get some data - * from the network, and pass it through the telnet state machine. We - * also flush the pty input buffer (by dropping its data) if it becomes - * too full. - */ - - void -ttloop() -{ - - DIAG(TD_REPORT, output_data("td: ttloop\r\n")); - if (nfrontp - nbackp > 0) { - netflush(); - } - ncc = read(net, netibuf, sizeof netibuf); - if (ncc < 0) { - syslog(LOG_INFO, "ttloop: read: %m"); - exit(1); - } else if (ncc == 0) { - syslog(LOG_INFO, "ttloop: peer died: %m"); - exit(1); - } - DIAG(TD_REPORT, output_data("td: ttloop read %d chars\r\n", ncc)); - netip = netibuf; - telrcv(); /* state machine */ - if (ncc > 0) { - pfrontp = pbackp = ptyobuf; - telrcv(); - } -} /* end of ttloop */ - -/* - * Check a descriptor to see if out of band data exists on it. - */ -int -stilloob(int s) -{ - static struct timeval timeout = { 0, 0 }; - fd_set excepts; - int value; - - do { - FD_ZERO(&excepts); - FD_SET(s, &excepts); - memset((char *)&timeout, 0, sizeof timeout); - value = select(s+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout); - } while ((value == -1) && (errno == EINTR)); - - if (value < 0) { - fatalperror(pty, "select"); - } - if (FD_ISSET(s, &excepts)) { - return 1; - } else { - return 0; - } -} - -void -ptyflush(void) -{ - int n; - - if ((n = pfrontp - pbackp) > 0) { - DIAG(TD_REPORT | TD_PTYDATA, - output_data("td: ptyflush %d chars\r\n", n)); - DIAG(TD_PTYDATA, printdata("pd", pbackp, n)); - n = write(pty, pbackp, n); - } - if (n < 0) { - if (errno == EWOULDBLOCK || errno == EINTR) - return; - cleanup(0); - } - pbackp += n; - if (pbackp == pfrontp) - pbackp = pfrontp = ptyobuf; -} - -/* - * nextitem() - * - * Return the address of the next "item" in the TELNET data - * stream. This will be the address of the next character if - * the current address is a user data character, or it will - * be the address of the character following the TELNET command - * if the current address is a TELNET IAC ("I Am a Command") - * character. - */ -static char * -nextitem(char *current) -{ - if ((*current&0xff) != IAC) { - return current+1; - } - switch (*(current+1)&0xff) { - case DO: - case DONT: - case WILL: - case WONT: - return current+3; - case SB: /* loop forever looking for the SE */ - { - char *look = current+2; - - for (;;) { - if ((*look++&0xff) == IAC) { - if ((*look++&0xff) == SE) { - return look; - } - } - } - } - default: - return current+2; - } -} /* end of nextitem */ - -/* - * netclear() - * - * We are about to do a TELNET SYNCH operation. Clear - * the path to the network. - * - * Things are a bit tricky since we may have sent the first - * byte or so of a previous TELNET command into the network. - * So, we have to scan the network buffer from the beginning - * until we are up to where we want to be. - * - * A side effect of what we do, just to keep things - * simple, is to clear the urgent data pointer. The principal - * caller should be setting the urgent data pointer AFTER calling - * us in any case. - */ -void -netclear(void) -{ - char *thisitem, *next; - char *good; -#define wewant(p) ((nfrontp > p) && ((*p&0xff) == IAC) && \ - ((*(p+1)&0xff) != EC) && ((*(p+1)&0xff) != EL)) - - thisitem = netobuf; - - while ((next = nextitem(thisitem)) <= nbackp) { - thisitem = next; - } - - /* Now, thisitem is first before/at boundary. */ - - good = netobuf; /* where the good bytes go */ - - while (nfrontp > thisitem) { - if (wewant(thisitem)) { - int length; - - next = thisitem; - do { - next = nextitem(next); - } while (wewant(next) && (nfrontp > next)); - length = next-thisitem; - memmove(good, thisitem, length); - good += length; - thisitem = next; - } else { - thisitem = nextitem(thisitem); - } - } - - nbackp = netobuf; - nfrontp = good; /* next byte to be sent */ - neturg = 0; -} /* end of netclear */ - -/* - * netflush - * Send as much data as possible to the network, - * handling requests for urgent data. - */ -void -netflush(void) -{ - int n; - extern int not42; - - while ((n = nfrontp - nbackp) > 0) { -#if 0 - /* XXX This causes output_data() to recurse and die */ - DIAG(TD_REPORT, { - n += output_data("td: netflush %d chars\r\n", n); - }); -#endif - /* - * if no urgent data, or if the other side appears to be an - * old 4.2 client (and thus unable to survive TCP urgent data), - * write the entire buffer in non-OOB mode. - */ - if ((neturg == 0) || (not42 == 0)) { - n = write(net, nbackp, n); /* normal write */ - } else { - n = neturg - nbackp; - /* - * In 4.2 (and 4.3) systems, there is some question about - * what byte in a sendOOB operation is the "OOB" data. - * To make ourselves compatible, we only send ONE byte - * out of band, the one WE THINK should be OOB (though - * we really have more the TCP philosophy of urgent data - * rather than the Unix philosophy of OOB data). - */ - if (n > 1) { - n = send(net, nbackp, n-1, 0); /* send URGENT all by itself */ - } else { - n = send(net, nbackp, n, MSG_OOB); /* URGENT data */ - } - } - if (n == -1) { - if (errno == EWOULDBLOCK || errno == EINTR) - continue; - cleanup(0); - /* NOTREACHED */ - } - nbackp += n; - if (nbackp >= neturg) { - neturg = 0; - } - if (nbackp == nfrontp) { - nbackp = nfrontp = netobuf; - } - } - return; -} /* end of netflush */ - - -/* - * miscellaneous functions doing a variety of little jobs follow ... - */ - - -void -fatal(int f, const char *msg) -{ - char buf[BUFSIZ]; - - (void) snprintf(buf, sizeof(buf), "telnetd: %s.\r\n", msg); - (void) write(f, buf, (int)strlen(buf)); - sleep(1); /*XXX*/ - exit(1); -} - -void -fatalperror(int f, const char *msg) -{ - char buf[BUFSIZ]; - - (void) snprintf(buf, sizeof(buf), "%s: %s", msg, strerror(errno)); - fatal(f, buf); -} - -char editedhost[32]; - -void -edithost(char *pat, char *host) -{ - char *res = editedhost; - - if (!pat) - pat = strdup(""); - while (*pat) { - switch (*pat) { - - case '#': - if (*host) - host++; - break; - - case '@': - if (*host) - *res++ = *host++; - break; - - default: - *res++ = *pat; - break; - } - if (res == &editedhost[sizeof editedhost - 1]) { - *res = '\0'; - return; - } - pat++; - } - if (*host) - (void) strncpy(res, host, - sizeof editedhost - (res - editedhost) -1); - else - *res = '\0'; - editedhost[sizeof editedhost - 1] = '\0'; -} - -static char *putlocation; - -static void -putstr(const char *s) -{ - - while (*s) - putchr(*s++); -} - -void -putchr(int cc) -{ - *putlocation++ = cc; -} - -#ifdef __FreeBSD__ -static char fmtstr[] = { "%+" }; -#else -static char fmtstr[] = { "%l:%M%P on %A, %d %B %Y" }; -#endif - -void -putf(char *cp, char *where) -{ - char *slash; - time_t t; - char db[100]; -#ifdef __FreeBSD__ - static struct utsname kerninfo; - - if (!*kerninfo.sysname) - uname(&kerninfo); -#endif - - putlocation = where; - - while (*cp) { - if (*cp =='\n') { - putstr("\r\n"); - cp++; - continue; - } else if (*cp != '%') { - putchr(*cp++); - continue; - } - switch (*++cp) { - - case 't': -#ifdef STREAMSPTY - /* names are like /dev/pts/2 -- we want pts/2 */ - slash = strchr(line+1, '/'); -#else - slash = strrchr(line, '/'); -#endif - if (slash == (char *) 0) - putstr(line); - else - putstr(&slash[1]); - break; - - case 'h': - putstr(editedhost); - break; - - case 'd': -#ifdef __FreeBSD__ - setlocale(LC_TIME, ""); -#endif - (void)time(&t); - (void)strftime(db, sizeof(db), fmtstr, localtime(&t)); - putstr(db); - break; - -#ifdef __FreeBSD__ - case 's': - putstr(kerninfo.sysname); - break; - - case 'm': - putstr(kerninfo.machine); - break; - - case 'r': - putstr(kerninfo.release); - break; - - case 'v': - putstr(kerninfo.version); - break; -#endif - - case '%': - putchr('%'); - break; - } - cp++; - } -} - -#ifdef DIAGNOSTICS -/* - * Print telnet options and commands in plain text, if possible. - */ -void -printoption(const char *fmt, int option) -{ - if (TELOPT_OK(option)) - output_data("%s %s\r\n", fmt, TELOPT(option)); - else if (TELCMD_OK(option)) - output_data("%s %s\r\n", fmt, TELCMD(option)); - else - output_data("%s %d\r\n", fmt, option); - return; -} - -void -printsub(char direction, unsigned char *pointer, int length) -{ - int i = 0; - - if (!(diagnostic & TD_OPTIONS)) - return; - - if (direction) { - output_data("td: %s suboption ", - direction == '<' ? "recv" : "send"); - if (length >= 3) { - int j; - - i = pointer[length-2]; - j = pointer[length-1]; - - if (i != IAC || j != SE) { - output_data("(terminated by "); - if (TELOPT_OK(i)) - output_data("%s ", TELOPT(i)); - else if (TELCMD_OK(i)) - output_data("%s ", TELCMD(i)); - else - output_data("%d ", i); - if (TELOPT_OK(j)) - output_data("%s", TELOPT(j)); - else if (TELCMD_OK(j)) - output_data("%s", TELCMD(j)); - else - output_data("%d", j); - output_data(", not IAC SE!) "); - } - } - length -= 2; - } - if (length < 1) { - output_data("(Empty suboption??\?)"); - return; - } - switch (pointer[0]) { - case TELOPT_TTYPE: - output_data("TERMINAL-TYPE "); - switch (pointer[1]) { - case TELQUAL_IS: - output_data("IS \"%.*s\"", length-2, (char *)pointer+2); - break; - case TELQUAL_SEND: - output_data("SEND"); - break; - default: - output_data( - "- unknown qualifier %d (0x%x).", - pointer[1], pointer[1]); - } - break; - case TELOPT_TSPEED: - output_data("TERMINAL-SPEED"); - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case TELQUAL_IS: - output_data(" IS %.*s", length-2, (char *)pointer+2); - break; - default: - if (pointer[1] == 1) - output_data(" SEND"); - else - output_data(" %d (unknown)", pointer[1]); - for (i = 2; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - } - break; - - case TELOPT_LFLOW: - output_data("TOGGLE-FLOW-CONTROL"); - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case LFLOW_OFF: - output_data(" OFF"); break; - case LFLOW_ON: - output_data(" ON"); break; - case LFLOW_RESTART_ANY: - output_data(" RESTART-ANY"); break; - case LFLOW_RESTART_XON: - output_data(" RESTART-XON"); break; - default: - output_data(" %d (unknown)", pointer[1]); - } - for (i = 2; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - - case TELOPT_NAWS: - output_data("NAWS"); - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - if (length == 2) { - output_data(" ?%d?", pointer[1]); - break; - } - output_data(" %d %d (%d)", - pointer[1], pointer[2], - (int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2]))); - if (length == 4) { - output_data(" ?%d?", pointer[3]); - break; - } - output_data(" %d %d (%d)", - pointer[3], pointer[4], - (int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4]))); - for (i = 5; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - - case TELOPT_LINEMODE: - output_data("LINEMODE "); - if (length < 2) { - output_data(" (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case WILL: - output_data("WILL "); - goto common; - case WONT: - output_data("WONT "); - goto common; - case DO: - output_data("DO "); - goto common; - case DONT: - output_data("DONT "); - common: - if (length < 3) { - output_data("(no option??\?)"); - break; - } - switch (pointer[2]) { - case LM_FORWARDMASK: - output_data("Forward Mask"); - for (i = 3; i < length; i++) { - output_data(" %x", pointer[i]); - } - break; - default: - output_data("%d (unknown)", pointer[2]); - for (i = 3; i < length; i++) { - output_data(" %d", pointer[i]); - } - break; - } - break; - - case LM_SLC: - output_data("SLC"); - for (i = 2; i < length - 2; i += 3) { - if (SLC_NAME_OK(pointer[i+SLC_FUNC])) - output_data(" %s", SLC_NAME(pointer[i+SLC_FUNC])); - else - output_data(" %d", pointer[i+SLC_FUNC]); - switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) { - case SLC_NOSUPPORT: - output_data(" NOSUPPORT"); break; - case SLC_CANTCHANGE: - output_data(" CANTCHANGE"); break; - case SLC_VARIABLE: - output_data(" VARIABLE"); break; - case SLC_DEFAULT: - output_data(" DEFAULT"); break; - } - output_data("%s%s%s", - pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "", - pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "", - pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : ""); - if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN| - SLC_FLUSHOUT| SLC_LEVELBITS)) { - output_data("(0x%x)", pointer[i+SLC_FLAGS]); - } - output_data(" %d;", pointer[i+SLC_VALUE]); - if ((pointer[i+SLC_VALUE] == IAC) && - (pointer[i+SLC_VALUE+1] == IAC)) - i++; - } - for (; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - - case LM_MODE: - output_data("MODE "); - if (length < 3) { - output_data("(no mode??\?)"); - break; - } - { - char tbuf[32]; - sprintf(tbuf, "%s%s%s%s%s", - pointer[2]&MODE_EDIT ? "|EDIT" : "", - pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "", - pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "", - pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "", - pointer[2]&MODE_ACK ? "|ACK" : ""); - output_data("%s", tbuf[1] ? &tbuf[1] : "0"); - } - if (pointer[2]&~(MODE_EDIT|MODE_TRAPSIG|MODE_ACK)) { - output_data(" (0x%x)", pointer[2]); - } - for (i = 3; i < length; i++) { - output_data(" ?0x%x?", pointer[i]); - } - break; - default: - output_data("%d (unknown)", pointer[1]); - for (i = 2; i < length; i++) { - output_data(" %d", pointer[i]); - } - } - break; - - case TELOPT_STATUS: { - const char *cp; - int j, k; - - output_data("STATUS"); - - switch (pointer[1]) { - default: - if (pointer[1] == TELQUAL_SEND) - output_data(" SEND"); - else - output_data(" %d (unknown)", pointer[1]); - for (i = 2; i < length; i++) { - output_data(" ?%d?", pointer[i]); - } - break; - case TELQUAL_IS: - output_data(" IS\r\n"); - - for (i = 2; i < length; i++) { - switch(pointer[i]) { - case DO: cp = "DO"; goto common2; - case DONT: cp = "DONT"; goto common2; - case WILL: cp = "WILL"; goto common2; - case WONT: cp = "WONT"; goto common2; - common2: - i++; - if (TELOPT_OK(pointer[i])) - output_data(" %s %s", cp, TELOPT(pointer[i])); - else - output_data(" %s %d", cp, pointer[i]); - - output_data("\r\n"); - break; - - case SB: - output_data(" SB "); - i++; - j = k = i; - while (j < length) { - if (pointer[j] == SE) { - if (j+1 == length) - break; - if (pointer[j+1] == SE) - j++; - else - break; - } - pointer[k++] = pointer[j++]; - } - printsub(0, &pointer[i], k - i); - if (i < length) { - output_data(" SE"); - i = j; - } else - i = j - 1; - - output_data("\r\n"); - - break; - - default: - output_data(" %d", pointer[i]); - break; - } - } - break; - } - break; - } - - case TELOPT_XDISPLOC: - output_data("X-DISPLAY-LOCATION "); - switch (pointer[1]) { - case TELQUAL_IS: - output_data("IS \"%.*s\"", length-2, (char *)pointer+2); - break; - case TELQUAL_SEND: - output_data("SEND"); - break; - default: - output_data("- unknown qualifier %d (0x%x).", - pointer[1], pointer[1]); - } - break; - - case TELOPT_NEW_ENVIRON: - output_data("NEW-ENVIRON "); - goto env_common1; - case TELOPT_OLD_ENVIRON: - output_data("OLD-ENVIRON"); - env_common1: - switch (pointer[1]) { - case TELQUAL_IS: - output_data("IS "); - goto env_common; - case TELQUAL_SEND: - output_data("SEND "); - goto env_common; - case TELQUAL_INFO: - output_data("INFO "); - env_common: - { - int noquote = 2; - for (i = 2; i < length; i++ ) { - switch (pointer[i]) { - case NEW_ENV_VAR: - output_data("\" VAR " + noquote); - noquote = 2; - break; - - case NEW_ENV_VALUE: - output_data("\" VALUE " + noquote); - noquote = 2; - break; - - case ENV_ESC: - output_data("\" ESC " + noquote); - noquote = 2; - break; - - case ENV_USERVAR: - output_data("\" USERVAR " + noquote); - noquote = 2; - break; - - default: - if (isprint(pointer[i]) && pointer[i] != '"') { - if (noquote) { - output_data("\""); - noquote = 0; - } - output_data("%c", pointer[i]); - } else { - output_data("\" %03o " + noquote, - pointer[i]); - noquote = 2; - } - break; - } - } - if (!noquote) - output_data("\""); - break; - } - } - break; - - - - default: - if (TELOPT_OK(pointer[0])) - output_data("%s (unknown)", TELOPT(pointer[0])); - else - output_data("%d (unknown)", pointer[i]); - for (i = 1; i < length; i++) { - output_data(" %d", pointer[i]); - } - break; - } - output_data("\r\n"); -} - -/* - * Dump a data buffer in hex and ascii to the output data stream. - */ -void -printdata(const char *tag, char *ptr, int cnt) -{ - int i; - char xbuf[30]; - - while (cnt) { - /* flush net output buffer if no room for new data) */ - if ((&netobuf[BUFSIZ] - nfrontp) < 80) { - netflush(); - } - - /* add a line of output */ - output_data("%s: ", tag); - for (i = 0; i < 20 && cnt; i++) { - output_data("%02x", *ptr); - if (isprint(*ptr)) { - xbuf[i] = *ptr; - } else { - xbuf[i] = '.'; - } - if (i % 2) { - output_data(" "); - } - cnt--; - ptr++; - } - xbuf[i] = '\0'; - output_data(" %s\r\n", xbuf ); - } -} -#endif /* DIAGNOSTICS */ diff --git a/secure/Makefile b/secure/Makefile index 4155dae..95ef727 100644 --- a/secure/Makefile +++ b/secure/Makefile @@ -6,26 +6,12 @@ SUBDIR= lib libexec usr.bin usr.sbin -SDIR= ${.CURDIR}/.. - -CODAI= ${MAKE} ${MFLAGS} cleandir; \ - ${MAKE} ${MFLAGS} obj; \ - ${MAKE} ${MFLAGS} depend all install - -CODAD= ${MAKE} ${MFLAGS} cleandir; \ - ${MAKE} ${MFLAGS} obj; \ - ${MAKE} ${MFLAGS} depend all distribute - -# These are the programs which depend on secure libs -sprog: - cd ${SDIR}/bin/ed; ${CODAI} - cd ${SDIR}/sbin/init; ${CODAI} - -bootstrap: - ( cd include; ${MAKE} ${MFLAGS} install ) - ( cd lib; ${MAKE} ${MFLAGS} depend all install ) - ${MAKE} ${MFLAGS} cleandir - ${MAKE} ${MFLAGS} obj - ${MAKE} ${MFLAGS} depend all install sprog +# These are programs which depend on crypto, but not Kerberos. +SPROGS= bin/ed usr.sbin/ppp usr.sbin/pppd usr.sbin/tcpdump/tcpdump \ + lib/libfetch usr.bin/fetch \ + lib/libtelnet libexec/telnetd usr.bin/telnet +.if !defined(NO_SENDMAIL) +SPROGS+=usr.sbin/sendmail +.endif .include <bsd.subdir.mk> diff --git a/secure/Makefile.inc b/secure/Makefile.inc index 0f19a7b..658101a 100644 --- a/secure/Makefile.inc +++ b/secure/Makefile.inc @@ -2,13 +2,6 @@ DISTRIBUTION?=crypto -TELNETDIR= ${.CURDIR}/../../../crypto/telnet -.if exists(${.OBJDIR}/../../lib/libtelnet) -LIBTELNET= ${.OBJDIR}/../../lib/libtelnet/libtelnet.a -.else -LIBTELNET= ${.CURDIR}/../../lib/libtelnet/libtelnet.a -.endif - .if exists(${.CURDIR}/../../lib/libcrypt/obj) CRYPTOBJDIR= ${.CURDIR}/../../lib/libcrypt/obj .else diff --git a/secure/lib/Makefile b/secure/lib/Makefile index 56b98e5..049fd39 100644 --- a/secure/lib/Makefile +++ b/secure/lib/Makefile @@ -6,9 +6,6 @@ SUBDIR+=libcrypto libssl .if !defined(NO_OPENSSH) SUBDIR+=libssh .endif -.if defined(NO_KERBEROS) -SUBDIR+=libtelnet -.endif .endif .include <bsd.subdir.mk> diff --git a/secure/lib/libtelnet/Makefile b/secure/lib/libtelnet/Makefile deleted file mode 100644 index 67d5d47..0000000 --- a/secure/lib/libtelnet/Makefile +++ /dev/null @@ -1,29 +0,0 @@ -# $FreeBSD$ - -LIB= telnet -INTERNALLIB= yes - -SRCS= genget.c getent.c misc.c encrypt.c auth.c enc_des.c sra.c pk.c - -WARNS?= 2 -CFLAGS+= -DENCRYPTION -DAUTHENTICATION -DSRA \ - -I${TELNETDIR} -I${TELNETDIR}/libtelnet - -INCS= ${TELNETDIR}/arpa/telnet.h -INCSDIR=${INCLUDEDIR}/arpa - -.include <bsd.lib.mk> - -.PATH: ${TELNETDIR}/libtelnet - -# -# Remove obsolete shared libraries, if any. We don't bother moving them -# to /usr/lib/compat, since they were only used by telnet, telnetd and -# tn3270. -# -beforeinstall: __remove-stale-libs -__remove-stale-libs: .PHONY -.if exists(${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0) - -chflags noschg ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0 - rm -f ${DESTDIR}${SHLIBDIR}/lib${LIB}.so.2.0 -.endif diff --git a/secure/libexec/Makefile b/secure/libexec/Makefile index 56d09b7..b60b4ce 100644 --- a/secure/libexec/Makefile +++ b/secure/libexec/Makefile @@ -5,9 +5,6 @@ SUBDIR= .if !defined(NO_OPENSSH) SUBDIR+=sftp-server ssh-keysign .endif -.if defined(NO_KERBEROS) -SUBDIR+=telnetd -.endif .endif .include <bsd.subdir.mk> diff --git a/secure/libexec/telnetd/Makefile b/secure/libexec/telnetd/Makefile deleted file mode 100644 index 07378fd6..0000000 --- a/secure/libexec/telnetd/Makefile +++ /dev/null @@ -1,26 +0,0 @@ -# $FreeBSD$ - -# Do not define -DKLUDGELINEMODE, as it does not interact well with many -# telnet implementations. - -PROG= telnetd -MAN= telnetd.8 - -SRCS= global.c slc.c state.c sys_term.c telnetd.c \ - termstat.c utility.c authenc.c - -CFLAGS+= -DLINEMODE -DUSE_TERMIO -DDIAGNOSTICS -DOLD_ENVIRON \ - -DENV_HACK -DAUTHENTICATION -DENCRYPTION \ - -I${TELNETDIR} -DINET6 - -WARNS?= 2 -WFORMAT?= 0 - -DPADD= ${LIBUTIL} ${LIBTERMCAP} ${LIBTELNET} ${LIBMP} ${LIBCRYPTO} \ - ${LIBCRYPT} ${LIBPAM} -LDADD= -lutil -ltermcap ${LIBTELNET} -lmp -lcrypto \ - -lcrypt ${MINUSLPAM} - -.include <bsd.prog.mk> - -.PATH: ${TELNETDIR}/telnetd diff --git a/secure/usr.bin/Makefile b/secure/usr.bin/Makefile index 77674ab..4d78845 100644 --- a/secure/usr.bin/Makefile +++ b/secure/usr.bin/Makefile @@ -6,9 +6,6 @@ SUBDIR+=bdes openssl .if !defined(NO_OPENSSH) SUBDIR+=scp sftp ssh ssh-add ssh-agent ssh-keygen ssh-keyscan .endif -.if defined(NO_KERBEROS) -SUBDIR+=telnet -.endif .endif .include <bsd.subdir.mk> diff --git a/secure/usr.bin/telnet/Makefile b/secure/usr.bin/telnet/Makefile deleted file mode 100644 index 74cf075..0000000 --- a/secure/usr.bin/telnet/Makefile +++ /dev/null @@ -1,21 +0,0 @@ -# $FreeBSD$ - -PROG= telnet - -SRCS= authenc.c commands.c main.c network.c ring.c sys_bsd.c \ - telnet.c terminal.c utilities.c - -CFLAGS+= -DKLUDGELINEMODE -DUSE_TERMIO -DENV_HACK -DOPIE \ - -DENCRYPTION -DAUTHENTICATION -DIPSEC -DINET6 \ - -I${TELNETDIR} -I${TELNETDIR}/libtelnet/ - -WARNS?= 2 - -DPADD= ${LIBTERMCAP} ${LIBTELNET} ${LIBMP} \ - ${LIBCRYPTO} ${LIBCRYPT} ${LIBIPSEC} ${LIBPAM} -LDADD= -ltermcap ${LIBTELNET} -lmp \ - -lcrypto -lcrypt -lipsec ${MINUSLPAM} - -.include <bsd.prog.mk> - -.PATH: ${TELNETDIR}/telnet diff --git a/usr.bin/Makefile b/usr.bin/Makefile index 4680121..c630576 100644 --- a/usr.bin/Makefile +++ b/usr.bin/Makefile @@ -167,6 +167,7 @@ SUBDIR= alias \ talk \ tcopy \ tee \ + telnet \ tftp \ time \ tip \ @@ -217,13 +218,6 @@ SUBDIR= alias \ ypmatch \ ypwhich -.if defined(RELEASEDIR) || \ - (!exists(${.CURDIR}/../secure) && !exists(${.CURDIR}/../kerberos5)) || \ - defined(NOCRYPT) || defined(NO_OPENSSL) || defined(NO_KERBEROS) -# make release needs both -SUBDIR+=telnet -.endif - .if !defined(NO_BIND) SUBDIR+=dig \ dnskeygen \ diff --git a/usr.bin/telnet/Makefile b/usr.bin/telnet/Makefile index a8c8351..817a725 100644 --- a/usr.bin/telnet/Makefile +++ b/usr.bin/telnet/Makefile @@ -1,12 +1,15 @@ # $FreeBSD$ +TELNETDIR= ${.CURDIR}/../../contrib/telnet +.PATH: ${TELNETDIR}/telnet + PROG= telnet SRCS= commands.c main.c network.c ring.c sys_bsd.c \ telnet.c terminal.c utilities.c CFLAGS+= -DKLUDGELINEMODE -DUSE_TERMIO -DENV_HACK -DOPIE \ - -I${.CURDIR}/../../lib -I${.CURDIR}/../../lib/libtelnet/ + -I${TELNETDIR} -I${TELNETDIR}/libtelnet/ .if exists(${.OBJDIR}/../../lib/libtelnet) LIBTELNET= ${.OBJDIR}/../../lib/libtelnet/libtelnet.a @@ -22,19 +25,21 @@ CFLAGS+= -DINET6 -DIPSEC DPADD+= ${LIBIPSEC} LDADD+= -lipsec .else -.PATH: ${.CURDIR}/../../lib/libtelnet -# XXX This was copied from lib/libtelnet/Makefile. +.PATH: ${TELNETDIR}/libtelnet SRCS+= genget.c getent.c misc.c CFLAGS+= -DHAS_CGETENT .endif -unifdef: - -cd ${.CURDIR} ; \ - ( for i in *.[ch] ; do \ - unifdef -UAUTHENTICATION -UENCRYPTION \ - ${.CURDIR}/../../crypto/telnet/telnet/$$i \ - > ${.CURDIR}/$$i ; \ - echo $$i ; \ - done ) +.if !defined(NO_CRYPTO) +SRCS+= authenc.c +CFLAGS+= -DENCRYPTION -DAUTHENTICATION -DIPSEC +DPADD+= ${LIBMP} ${LIBCRYPTO} ${LIBCRYPT} ${LIBIPSEC} ${LIBPAM} +LDADD+= -lmp -lcrypto -lcrypt -lipsec ${MINUSLPAM} +.if !defined(NO_KERBEROS) +CFLAGS+= -DKRB5 -DFORWARD -Dnet_write=telnet_net_write +DPADD+= ${LIBKRB5} ${LIBASN1} ${LIBCOM_ERR} ${LIBROKEN} +LDADD+= -lkrb5 -lasn1 -lcom_err -lroken +.endif +.endif .include <bsd.prog.mk> diff --git a/usr.bin/telnet/README b/usr.bin/telnet/README deleted file mode 100644 index c69e128..0000000 --- a/usr.bin/telnet/README +++ /dev/null @@ -1,746 +0,0 @@ -# $FreeBSD$ - -This is a distribution of both client and server telnet. These programs -have been compiled on: - telnet telnetd - 4.4 BSD-Lite x x - 4.3 BSD Reno X X - UNICOS 9.1 X X - UNICOS 9.0 X X - UNICOS 8.0 X X - BSDI 2.0 X X - Solaris 2.4 x x (no linemode in server) - SunOs 4.1.4 X X (no linemode in server) - Ultrix 4.3 X X (no linemode in server) - Ultrix 4.1 X X (no linemode in server) - - NOTE - UNICOS and hpux-specific #ifdef code has now been removed - -In addition, previous versions have been compiled on the following -machines, but were not available for testing this version. - telnet telnetd - Next1.0 X X - UNICOS 8.3 X X - UNICOS 7.C X X - UNICOS 7.0 X X - SunOs 4.0.3c X X (no linemode in server) - 4.3 BSD X X (no linemode in server) - DYNIX V3.0.12 X X (no linemode in server) - Ultrix 3.1 X X (no linemode in server) - Ultrix 4.0 X X (no linemode in server) - SunOs 3.5 X X (no linemode in server) - SunOs 4.1.3 X X (no linemode in server) - Solaris 2.2 x x (no linemode in server) - Solaris 2.3 x x (no linemode in server) - BSDI 1.0 X X - BSDI 1.1 X X - DYNIX V3.0.17.9 X X (no linemode in server) - HP-UX 8.0 x x (no linemode in server) - -This code should work, but there are no guarantees. - -May 30, 1995 - -This release represents what is on the 4.4BSD-Lite2 release, which -should be the final BSD release. I will continue to support of -telnet, The code (without encryption) is available via anonymous ftp -from ftp.cray.com, in src/telnet/telnet.YY.MM.DD.NE.tar.Z, where -YY.MM.DD is replaced with the year, month and day of the release. -If you can't find it at one of these places, at some point in the -near future information about the latest releases should be available -from ftp.borman.com. - -In addition, the version with the encryption code is available via -ftp from net-dist.mit.edu, in the directory /pub/telnet. There -is a README file there that gives further information on how -to get the distribution. - -Questions, comments, bug reports and bug fixes can be sent to -one of these addresses: - dab@borman.com - dab@cray.com - dab@bsdi.com - -This release is mainly bug fixes and code cleanup. - - Replace all calls to bcopy()/bzero() with calls to - memmove()/memset() and all calls to index()/rindex() - with calls to strchr()/strrchr(). - - Add some missing diagnostics for option tracing - to telnetd. - - Add support for BSDI 2.0 and Solaris 2.4. - - Add support for UNICOS 8.0 - - Get rid of expanded tabs and trailing white spaces. - - From Paul Vixie: - Fix for telnet going into an endless spin - when the session dies abnormally. - - From Jef Poskanzer: - Changes to allow telnet to compile - under SunOS 3.5. - - From Philip Guenther: - makeutx() doesn't expand utmpx, - use pututxline() instead. - - From Chris Torek: - Add a sleep(1) before execing login - to avoid race condition that can eat - up the login prompt. - Use terminal speed directly if it is - not an encoded value. - - From Steve Parker: - Fix to realloc() call. Fix for execing - login on solaris with no user name. - -January 19, 1994 - -This is a list of some of the changes since the last tar release -of telnet/telnetd. There are probably other changes that aren't -listed here, but this should hit a lot of the main ones. - - General: - Changed #define for AUTHENTICATE to AUTHENTICATION - Changed #define for ENCRYPT to ENCRYPTION - Changed #define for DES_ENCRYPT to DES_ENCRYPTION - - Added support for SPX authentication: -DSPX - - Added support for Kerberos Version 5 authentication: -DKRB5 - - Added support for ANSI C function prototypes - - Added support for the NEW-ENVIRON option (RFC-1572) - including support for USERVAR. - - Made support for the old Environment Option (RFC-1408) - conditional on -DOLD_ENVIRON - - Added #define ENV_HACK - support for RFC 1571 - - The encryption code is removed from the public distributions. - Domestic 4.4 BSD distributions contain the encryption code. - - ENV_HACK: Code to deal with systems that only implement - the old ENVIRON option, and have reversed definitions - of ENV_VAR and ENV_VAL. Also fixes ENV processing in - client to handle things besides just the default set... - - NO_BSD_SETJMP: UNICOS configuration for - UNICOS 6.1/6.0/5.1/5.0 systems. - - STREAMSPTY: Use /dev/ptmx to get a clean pty. This - is for SVr4 derivatives (Like Solaris) - - UTMPX: For systems that have /etc/utmpx. This is for - SVr4 derivatives (Like Solaris) - - Definitions for BSDI 1.0 - - Definitions for 4.3 Reno and 4.4 BSD. - - Definitions for UNICOS 8.0 and UNICOS 7.C - - Definitions for Solaris 2.0 - - Definitions for HP-UX 8.0 - - Latest Copyright notices from Berkeley. - - FLOW-CONTROL: support for RFC-XXXx - - - Client Specific: - - Fix the "send" command to not send garbage... - - Fix status message for "skiprc" - - Make sure to send NAWS after telnet has been suspended - or an external command has been run, if the window size - has changed. - - sysV88 support. - - Server Specific: - - Support flowcontrol option in non-linemode servers. - - -k Server supports Kludge Linemode, but will default to - either single character mode or real Linemode support. - The user will have to explicitly ask to switch into - kludge linemode. ("stty extproc", or escape back to - to telnet and say "mode line".) - - -u Specify the length of the hostname field in the utmp - file. Hostname longer than this length will be put - into the utmp file in dotted decimal notation, rather - than putting in a truncated hostname. - - -U Registered hosts only. If a reverse hostname lookup - fails, the connection will be refused. - - -f/-F - Allows forwarding of credentials for KRB5. - -Februrary 22, 1991: - - Features: - - This version of telnet/telnetd has support for both - the AUTHENTICATION and ENCRYPTION options. The - AUTHENTICATION option is fairly well defined, and - an option number has been assigned to it. The - ENCRYPTION option is still in a state of flux; an - option number has been assigned to, but it is still - subject to change. The code is provided in this release - for experimental and testing purposes. - - The telnet "send" command can now be used to send - do/dont/will/wont commands, with any telnet option - name. The rules for when do/dont/will/wont are sent - are still followed, so just because the user requests - that one of these be sent doesn't mean that it will - be sent... - - The telnet "getstatus" command no longer requires - that option printing be enabled to see the response - to the "DO STATUS" command. - - A -n flag has been added to telnetd to disable - keepalives. - - A new telnet command, "auth" has been added (if - AUTHENTICATE is defined). It has four sub-commands, - "status", "disable", "enable" and "help". - - A new telnet command, "encrypt" has been added (if - ENCRYPT is defined). It has many sub-commands: - "enable", "type", "start", "stop", "input", - "-input", "output", "-output", "status", and "help". - - The LOGOUT option is now supported by both telnet - and telnetd, a new command, "logout", was added - to support this. - - Several new toggle options were added: - "autoencrypt", "autodecrypt", "autologin", "authdebug", - "encdebug", "skiprc", "verbose_encrypt" - - An "rlogin" interface has been added. If the program - is named "rlogin", or the "-r" flag is given, then - an rlogin type of interface will be used. - ~. Terminates the session - ~<susp> Suspend the session - ~^] Escape to telnet command mode - ~~ Pass through the ~. - BUG: If you type the rlogin escape character - in the middle of a line while in rlogin - mode, you cannot erase it or any characters - before it. Hopefully this can be fixed - in a future release... - - General changes: - - A "libtelnet.a" has now been created. This libraray - contains code that is common to both telnet and - telnetd. This is also where library routines that - are needed, but are not in the standard C library, - are placed. - - The makefiles have been re-done. All of the site - specific configuration information has now been put - into a single "Config.generic" file, in the top level - directory. Changing this one file will take care of - all three subdirectories. Also, to add a new/local - definition, a "Config.local" file may be created - at the top level; if that file exists, the subdirectories - will use that file instead of "Config.generic". - - Many 1-2 line functions in commands.c have been - removed, and just inserted in-line, or replaced - with a macro. - - Bug Fixes: - - The non-termio code in both telnet and telnetd was - setting/clearing CTLECH in the sg_flags word. This - was incorrect, and has been changed to set/clear the - LCTLECH bit in the local mode word. - - The SRCRT #define has been removed. If IP_OPTIONS - and IPPROTO_IP are defined on the system, then the - source route code is automatically enabled. - - The NO_GETTYTAB #define has been removed; there - is a compatibility routine that can be built into - libtelnet to achive the same results. - - The server, telnetd, has been switched to use getopt() - for parsing the argument list. - - The code for getting the input/output speeds via - cfgetispeed()/cfgetospeed() was still not quite - right in telnet. Posix says if the ispeed is 0, - then it is really equal to the ospeed. - - The suboption processing code in telnet now has - explicit checks to make sure that we received - the entire suboption (telnetd was already doing this). - - The telnet code for processing the terminal type - could cause a core dump if an existing connection - was closed, and a new connection opened without - exiting telnet. - - Telnetd was doing a TCSADRAIN when setting the new - terminal settings; This is not good, because it means - that the tcsetattr() will hang waiting for output to - drain, and telnetd is the only one that will drain - the output... The fix is to use TCSANOW which does - not wait. - - Telnetd was improperly setting/clearing the ISTRIP - flag in the c_lflag field, it should be using the - c_iflag field. - - When the child process of telnetd was opening the - slave side of the pty, it was re-setting the EXTPROC - bit too early, and some of the other initialization - code was wiping it out. This would cause telnetd - to go out of linemode and into single character mode. - - One instance of leaving linemode in telnetd forgot - to send a WILL ECHO to the client, the net result - would be that the user would see double character - echo. - - If the MODE was being changed several times very - quickly, telnetd could get out of sync with the - state changes and the returning acks; and wind up - being left in the wrong state. - -September 14, 1990: - - Switch the client to use getopt() for parsing the - argument list. The 4.3Reno getopt.c is included for - systems that don't have getopt(). - - Use the posix _POSIX_VDISABLE value for what value - to use when disabling special characters. If this - is undefined, it defaults to 0x3ff. - - For non-termio systems, TIOCSETP was being used to - change the state of the terminal. This causes the - input queue to be flushed, which we don't want. This - is now changed to TIOCSETN. - - Take out the "#ifdef notdef" around the code in the - server that generates a "sync" when the pty oputput - is flushed. The potential problem is that some older - telnet clients may go into an infinate loop when they - receive a "sync", if so, the server can be compiled - with "NO_URGENT" defined. - - Fix the client where it was setting/clearing the OPOST - bit in the c_lflag field, not the c_oflag field. - - Fix the client where it was setting/clearing the ISTRIP - bit in the c_lflag field, not the c_iflag field. (On - 4.3Reno, this is the ECHOPRT bit in the c_lflag field.) - The client also had its interpretation of WILL BINARY - and DO BINARY reversed. - - Fix a bug in client that would cause a core dump when - attempting to remove the last environment variable. - - In the client, there were a few places were switch() - was being passed a character, and if it was a negative - value, it could get sign extended, and not match - the 8 bit case statements. The fix is to and the - switch value with 0xff. - - Add a couple more printoption() calls in the client, I - don't think there are any more places were a telnet - command can be received and not printed out when - "options" is on. - - A new flag has been added to the client, "-a". Currently, - this just causes the USER name to be sent across, in - the future this may be used to signify that automatic - authentication is requested. - - The USER variable is now only sent by the client if - the "-a" or "-l user" options are explicity used, or - if the user explicitly asks for the "USER" environment - variable to be exported. In the server, if it receives - the "USER" environment variable, it won't print out the - banner message, so that only "Password:" will be printed. - This makes the symantics more like rlogin, and should be - more familiar to the user. (People are not used to - getting a banner message, and then getting just a - "Password:" prompt.) - - Re-vamp the code for starting up the child login - process. The code was getting ugly, and it was - hard to tell what was really going on. What we - do now is after the fork(), in the child: - 1) make sure we have no controlling tty - 2) open and initialize the tty - 3) do a setsid()/setpgrp() - 4) makes the tty our controlling tty. - On some systems, #2 makes the tty our controlling - tty, and #4 is a no-op. The parent process does - a gets rid of any controlling tty after the child - is fork()ed. - - Use the strdup() library routine in telnet, instead - of the local savestr() routine. If you don't have - strdup(), you need to define NO_STRDUP. - - Add support for ^T (SIGINFO/VSTATUS), found in the - 4.3Reno distribution. This maps to the AYT character. - You need a 4-line bugfix in the kernel to get this - to work properly: - - > *** tty_pty.c.ORG Tue Sep 11 09:41:53 1990 - > --- tty_pty.c Tue Sep 11 17:48:03 1990 - > *************** - > *** 609,613 **** - > if ((tp->t_lflag&NOFLSH) == 0) - > ttyflush(tp, FREAD|FWRITE); - > ! pgsignal(tp->t_pgrp, *(unsigned int *)data); - > return(0); - > } - > --- 609,616 ---- - > if ((tp->t_lflag&NOFLSH) == 0) - > ttyflush(tp, FREAD|FWRITE); - > ! pgsignal(tp->t_pgrp, *(unsigned int *)data, 1); - > ! if ((*(unsigned int *)data == SIGINFO) && - > ! ((tp->t_lflag&NOKERNINFO) == 0)) - > ! ttyinfo(tp); - > return(0); - > } - - The client is now smarter when setting the telnet escape - character; it only sets it to one of VEOL and VEOL2 if - one of them is undefined, and the other one is not already - defined to the telnet escape character. - - Handle TERMIOS systems that have separate input and output - line speed settings embedded in the flags. - - Many other minor bug fixes. - -June 20, 1990: - Re-organize makefiles and source tree. The telnet/Source - directory is now gone, and all the source that was in - telnet/Source is now just in the telnet directory. - - Separate makefile for each system are now gone. There - are two makefiles, Makefile and Makefile.generic. - The "Makefile" has the definitions for the various - system, and "Makefile.generic" does all the work. - There is a variable called "WHAT" that is used to - specify what to make. For example, in the telnet - directory, you might say: - make 4.4bsd WHAT=clean - to clean out the directory. - - Add support for the ENVIRON and XDISPLOC options. - In order for the server to work, login has to have - the "-p" option to preserve environment variables. - - Add the SOFT_TAB and LIT_ECHO modes in the LINEMODE support. - - Add the "-l user" option to command line and open command - (This is passed through the ENVIRON option). - - Add the "-e" command line option, for setting the escape - character. - - Add the "-D", diagnostic, option to the server. This allows - the server to print out debug information, which is very - useful when trying to debug a telnet that doesn't have any - debugging ability. - - Turn off the literal next character when not in LINEMODE. - - Don't recognize ^Y locally, just pass it through. - - Make minor modifications for Sun4.0 and Sun4.1 - - Add support for both FORW1 and FORW2 characters. The - telnet escpape character is set to whichever of the - two is not being used. If both are in use, the escape - character is not set, so when in linemode the user will - have to follow the escape character with a <CR> or <EOF) - to get it passed through. - - Commands can now be put in single and double quotes, and - a backslash is now an escape character. This is needed - for allowing arbitrary strings to be assigned to environment - variables. - - Switch telnetd to use macros like telnet for keeping - track of the state of all the options. - - Fix telnetd's processing of options so that we always do - the right processing of the LINEMODE option, regardless - of who initiates the request to turn it on. Also, make - sure that if the other side went "WILL ECHO" in response - to our "DO ECHO", that we send a "DONT ECHO" to get the - option turned back off! - - Fix the TERMIOS setting of the terminal speed to handle both - BSD's separate fields, and the SYSV method of CBAUD bits. - - Change how we deal with the other side refusing to enable - an option. The sequence used to be: send DO option; receive - WONT option; send DONT option. Now, the sequence is: send - DO option; receive WONT option. Both should be valid - according to the spec, but there has been at least one - client implementation of telnet identified that can get - really confused by this. (The exact sequence, from a trace - on the server side, is (numbers are number of responses that - we expect to get after that line...): - - send WILL ECHO 1 (initial request) - send WONT ECHO 2 (server is changing state) - recv DO ECHO 1 (first reply, ok. expect DONT ECHO next) - send WILL ECHO 2 (server changes state again) - recv DONT ECHO 1 (second reply, ok. expect DO ECHO next) - recv DONT ECHO 0 (third reply, wrong answer. got DONT!!!) - *** send WONT ECHO (send WONT to acknowledge the DONT) - send WILL ECHO 1 (ask again to enable option) - recv DO ECHO 0 - - recv DONT ECHO 0 - send WONT ECHO 1 - recv DONT ECHO 0 - recv DO ECHO 1 - send WILL ECHO 0 - (and the last 5 lines loop forever) - - The line with the "***" is last of the WILL/DONT/WONT sequence. - The change to the server to not generate that makes this same - example become: - - send will ECHO 1 - send wont ECHO 2 - recv do ECHO 1 - send will ECHO 2 - recv dont ECHO 1 - recv dont ECHO 0 - recv do ECHO 1 - send will ECHO 0 - - There is other option negotiation going on, and not sending - the third part changes some of the timings, but this specific - example no longer gets stuck in a loop. The "telnet.state" - file has been modified to reflect this change to the algorithm. - - A bunch of miscellaneous bug fixes and changes to make - lint happier. - - This version of telnet also has some KERBEROS stuff in - it. This has not been tested, it uses an un-authorized - telnet option number, and uses an out-of-date version - of the (still being defined) AUTHENTICATION option. - There is no support for this code, do not enable it. - - -March 1, 1990: -CHANGES/BUGFIXES SINCE LAST RELEASE: - Some support for IP TOS has been added. Requires that the - kernel support the IP_TOS socket option (currently this - is only in UNICOS 6.0). - - Both telnet and telnetd now use the cc_t typedef. typedefs are - included for systems that don't have it (in termios.h). - - SLC_SUSP was not supported properly before. It is now. - - IAC EOF was not translated properly in telnetd for SYSV_TERMIO - when not in linemode. It now saves a copy of the VEOF character, - so that when ICANON is turned off and we can't trust it anymore - (because it is now the VMIN character) we use the saved value. - - There were two missing "break" commands in the linemode - processing code in telnetd. - - Telnetd wasn't setting the kernel window size information - properly. It was using the rows for both rows and columns... - -Questions/comments go to - David Borman - Cray Research, Inc. - 655F Lone Oak Drive - Eagan, MN 55123 - dab@cray.com. - -README: You are reading it. - -Config.generic: - This file contains all the OS specific definitions. It - has pre-definitions for many common system types, and is - in standard makefile fromat. See the comments at the top - of the file for more information. - -Config.local: - This is not part of the distribution, but if this file exists, - it is used instead of "Config.generic". This allows site - specific configuration without having to modify the distributed - "Config.generic" file. - -kern.diff: - This file contains the diffs for the changes needed for the - kernel to support LINEMODE is the server. These changes are - for a 4.3BSD system. You may need to make some changes for - your particular system. - - There is a new bit in the terminal state word, TS_EXTPROC. - When this bit is set, several aspects of the terminal driver - are disabled. Input line editing, character echo, and - mapping of signals are all disabled. This allows the telnetd - to turn of these functions when in linemode, but still keep - track of what state the user wants the terminal to be in. - - New ioctl()s: - - TIOCEXT Turn on/off the TS_EXTPROC bit - TIOCGSTATE Get t_state of tty to look at TS_EXTPROC bit - TIOCSIG Generate a signal to processes in the - current process group of the pty. - - There is a new mode for packet driver, the TIOCPKT_IOCTL bit. - When packet mode is turned on in the pty, and the TS_EXTPROC - bit is set, then whenever the state of the pty is changed, the - next read on the master side of the pty will have the TIOCPKT_IOCTL - bit set, and the data will contain the following: - struct xx { - struct sgttyb a; - struct tchars b; - struct ltchars c; - int t_state; - int t_flags; - } - This allows the process on the server side of the pty to know - when the state of the terminal has changed, and what the new - state is. - - However, if you define USE_TERMIO or SYSV_TERMIO, the code will - expect that the structure returned in the TIOCPKT_IOCTL is - the termio/termios structure. - -stty.diff: - This file contains the changes needed for the stty(1) program - to report on the current status of the TS_EXTPROC bit. It also - allows the user to turn on/off the TS_EXTPROC bit. This is useful - because it allows the user to say "stty -extproc", and the - LINEMODE option will be automatically disabled, and saying "stty - extproc" will re-enable the LINEMODE option. - -telnet.state: - Both the client and server have code in them to deal - with option negotiation loops. The algorithm that is - used is described in this file. - -telnet: - This directory contains the client code. No kernel changes are - needed to use this code. - -telnetd: - This directory contains the server code. If LINEMODE or KLUDGELINEMODE - are defined, then the kernel modifications listed above are needed. - -libtelnet: - This directory contains code that is common to both the client - and the server. - -arpa: - This directory has a new <arpa/telnet.h> - -libtelnet/Makefile.4.4: -telnet/Makefile.4.4: -telnetd/Makefile.4.4: - These are the makefiles that can be used on a 4.3Reno - system when this software is installed in /usr/src/lib/libtelnet, - /usr/src/libexec/telnetd, and /usr/src/usr.bin/telnet. - - -The following TELNET options are supported: - - LINEMODE: - The LINEMODE option is supported as per RFC1116. The - FORWARDMASK option is not currently supported. - - BINARY: The client has the ability to turn on/off the BINARY - option in each direction. Turning on BINARY from - server to client causes the LITOUT bit to get set in - the terminal driver on both ends, turning on BINARY - from the client to the server causes the PASS8 bit - to get set in the terminal driver on both ends. - - TERMINAL-TYPE: - This is supported as per RFC1091. On the server side, - when a terminal type is received, termcap/terminfo - is consulted to determine if it is a known terminal - type. It keeps requesting terminal types until it - gets one that it recongnizes, or hits the end of the - list. The server side looks up the entry in the - termcap/terminfo data base, and generates a list of - names which it then passes one at a time to each - request for a terminal type, duplicating the last - entry in the list before cycling back to the beginning. - - NAWS: The Negotiate about Window Size, as per RFC 1073. - - TERMINAL-SPEED: - Implemented as per RFC 1079 - - TOGGLE-FLOW-CONTROL: - Implemented as per RFC 1080 - - TIMING-MARK: - As per RFC 860 - - SGA: As per RFC 858 - - ECHO: As per RFC 857 - - LOGOUT: As per RFC 727 - - STATUS: - The server will send its current status upon - request. It does not ask for the clients status. - The client will request the servers current status - from the "send getstatus" command. - - ENVIRON: - This option is currently being defined by the IETF - Telnet Working Group, and an RFC has not yet been - issued, but should be in the near future... - - X-DISPLAY-LOCATION: - This functionality can be done through the ENVIRON - option, it is added here for completeness. - - AUTHENTICATION: - This option is currently being defined by the IETF - Telnet Working Group, and an RFC has not yet been - issued. The basic framework is pretty much decided, - but the definitions for the specific authentication - schemes is still in a state of flux. - - ENCRYPTION: - This option is currently being defined by the IETF - Telnet Working Group, and an RFC has not yet been - issued. The draft RFC is still in a state of flux, - so this code may change in the future. diff --git a/usr.bin/telnet/commands.c b/usr.bin/telnet/commands.c deleted file mode 100644 index 489481f..0000000 --- a/usr.bin/telnet/commands.c +++ /dev/null @@ -1,2739 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)commands.c 8.4 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/un.h> -#include <sys/file.h> -#include <sys/socket.h> -#include <netinet/in.h> - -#include <ctype.h> -#include <err.h> -#include <errno.h> -#include <netdb.h> -#include <pwd.h> -#include <signal.h> -#include <stdarg.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include <arpa/telnet.h> -#include <arpa/inet.h> - -#include "general.h" - -#include "ring.h" - -#include "externs.h" -#include "defines.h" -#include "types.h" -#include "misc.h" - - -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <netinet/ip6.h> - -#ifndef MAXHOSTNAMELEN -#define MAXHOSTNAMELEN 256 -#endif - -typedef int (*intrtn_t)(int, char **); - -#if defined(IPPROTO_IP) && defined(IP_TOS) -int tos = -1; -#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ - -char *hostname; -static char _hostname[MAXHOSTNAMELEN]; - -static int help(int, char **); -static int call(intrtn_t, ...); -static void cmdrc(char *, char *); -#ifdef INET6 -static int switch_af(struct addrinfo **); -#endif -static int togglehelp(void); -static int send_tncmd(void (*)(int, int), const char *, char *); -static int setmod(int); -static int clearmode(int); -static int modehelp(void); -static int sourceroute(struct addrinfo *, char *, char **, int *, int *, int *); - -typedef struct { - const char *name; /* command name */ - const char *help; /* help string (NULL for no help) */ - int (*handler)(int, char **); /* routine which executes command */ - int needconnect; /* Do we need to be connected to execute? */ -} Command; - -static char line[256]; -static char saveline[256]; -static int margc; -static char *margv[20]; - -#ifdef OPIE -#include <sys/wait.h> -#define PATH_OPIEKEY "/usr/bin/opiekey" -static int -opie_calc(int argc, char *argv[]) -{ - int status; - - if(argc != 3) { - printf("%s sequence challenge\n", argv[0]); - return (0); - } - - switch(fork()) { - case 0: - execv(PATH_OPIEKEY, argv); - exit (1); - case -1: - perror("fork"); - break; - default: - (void) wait(&status); - if (WIFEXITED(status)) - return (WEXITSTATUS(status)); - } - return (0); -} -#endif - -static void -makeargv(void) -{ - char *cp, *cp2, c; - char **argp = margv; - - margc = 0; - cp = line; - if (*cp == '!') { /* Special case shell escape */ - strcpy(saveline, line); /* save for shell command */ - *argp++ = strdup("!"); /* No room in string to get this */ - margc++; - cp++; - } - while ((c = *cp)) { - int inquote = 0; - while (isspace(c)) - c = *++cp; - if (c == '\0') - break; - *argp++ = cp; - margc += 1; - for (cp2 = cp; c != '\0'; c = *++cp) { - if (inquote) { - if (c == inquote) { - inquote = 0; - continue; - } - } else { - if (c == '\\') { - if ((c = *++cp) == '\0') - break; - } else if (c == '"') { - inquote = '"'; - continue; - } else if (c == '\'') { - inquote = '\''; - continue; - } else if (isspace(c)) - break; - } - *cp2++ = c; - } - *cp2 = '\0'; - if (c == '\0') - break; - cp++; - } - *argp++ = 0; -} - -/* - * Make a character string into a number. - * - * Todo: 1. Could take random integers (12, 0x12, 012, 0b1). - */ - -static int -special(char *s) -{ - char c; - char b; - - switch (*s) { - case '^': - b = *++s; - if (b == '?') { - c = b | 0x40; /* DEL */ - } else { - c = b & 0x1f; - } - break; - default: - c = *s; - break; - } - return c; -} - -/* - * Construct a control character sequence - * for a special character. - */ -static const char * -control(cc_t c) -{ - static char buf[5]; - /* - * The only way I could get the Sun 3.5 compiler - * to shut up about - * if ((unsigned int)c >= 0x80) - * was to assign "c" to an unsigned int variable... - * Arggg.... - */ - unsigned int uic = (unsigned int)c; - - if (uic == 0x7f) - return ("^?"); - if (c == (cc_t)_POSIX_VDISABLE) { - return "off"; - } - if (uic >= 0x80) { - buf[0] = '\\'; - buf[1] = ((c>>6)&07) + '0'; - buf[2] = ((c>>3)&07) + '0'; - buf[3] = (c&07) + '0'; - buf[4] = 0; - } else if (uic >= 0x20) { - buf[0] = c; - buf[1] = 0; - } else { - buf[0] = '^'; - buf[1] = '@'+c; - buf[2] = 0; - } - return (buf); -} - -/* - * The following are data structures and routines for - * the "send" command. - * - */ - -struct sendlist { - const char *name; /* How user refers to it (case independent) */ - const char *help; /* Help information (0 ==> no help) */ - int needconnect; /* Need to be connected */ - int narg; /* Number of arguments */ - int (*handler)(char *, ...); /* Routine to perform (for special ops) */ - int nbyte; /* Number of bytes to send this command */ - int what; /* Character to be sent (<0 ==> special) */ -}; - - -static int - send_esc(void), - send_help(void), - send_docmd(char *), - send_dontcmd(char *), - send_willcmd(char *), - send_wontcmd(char *); - -static struct sendlist Sendlist[] = { - { "ao", "Send Telnet Abort output", 1, 0, NULL, 2, AO }, - { "ayt", "Send Telnet 'Are You There'", 1, 0, NULL, 2, AYT }, - { "brk", "Send Telnet Break", 1, 0, NULL, 2, BREAK }, - { "break", NULL, 1, 0, NULL, 2, BREAK }, - { "ec", "Send Telnet Erase Character", 1, 0, NULL, 2, EC }, - { "el", "Send Telnet Erase Line", 1, 0, NULL, 2, EL }, - { "escape", "Send current escape character",1, 0, (int (*)(char *, ...))send_esc, 1, 0 }, - { "ga", "Send Telnet 'Go Ahead' sequence", 1, 0, NULL, 2, GA }, - { "ip", "Send Telnet Interrupt Process",1, 0, NULL, 2, IP }, - { "intp", NULL, 1, 0, NULL, 2, IP }, - { "interrupt", NULL, 1, 0, NULL, 2, IP }, - { "intr", NULL, 1, 0, NULL, 2, IP }, - { "nop", "Send Telnet 'No operation'", 1, 0, NULL, 2, NOP }, - { "eor", "Send Telnet 'End of Record'", 1, 0, NULL, 2, EOR }, - { "abort", "Send Telnet 'Abort Process'", 1, 0, NULL, 2, ABORT }, - { "susp", "Send Telnet 'Suspend Process'",1, 0, NULL, 2, SUSP }, - { "eof", "Send Telnet End of File Character", 1, 0, NULL, 2, xEOF }, - { "synch", "Perform Telnet 'Synch operation'", 1, 0, (int (*)(char *, ...))dosynch, 2, 0 }, - { "getstatus", "Send request for STATUS", 1, 0, (int (*)(char *, ...))get_status, 6, 0 }, - { "?", "Display send options", 0, 0, (int (*)(char *, ...))send_help, 0, 0 }, - { "help", NULL, 0, 0, (int (*)(char *, ...))send_help, 0, 0 }, - { "do", NULL, 0, 1, (int (*)(char *, ...))send_docmd, 3, 0 }, - { "dont", NULL, 0, 1, (int (*)(char *, ...))send_dontcmd, 3, 0 }, - { "will", NULL, 0, 1, (int (*)(char *, ...))send_willcmd, 3, 0 }, - { "wont", NULL, 0, 1, (int (*)(char *, ...))send_wontcmd, 3, 0 }, - { NULL, NULL, 0, 0, NULL, 0, 0 } -}; - -#define GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \ - sizeof(struct sendlist))) - -static int -sendcmd(int argc, char *argv[]) -{ - int count; /* how many bytes we are going to need to send */ - int i; - struct sendlist *s; /* pointer to current command */ - int success = 0; - int needconnect = 0; - - if (argc < 2) { - printf("need at least one argument for 'send' command\n"); - printf("'send ?' for help\n"); - return 0; - } - /* - * First, validate all the send arguments. - * In addition, we see how much space we are going to need, and - * whether or not we will be doing a "SYNCH" operation (which - * flushes the network queue). - */ - count = 0; - for (i = 1; i < argc; i++) { - s = GETSEND(argv[i]); - if (s == 0) { - printf("Unknown send argument '%s'\n'send ?' for help.\n", - argv[i]); - return 0; - } else if (Ambiguous((void *)s)) { - printf("Ambiguous send argument '%s'\n'send ?' for help.\n", - argv[i]); - return 0; - } - if (i + s->narg >= argc) { - fprintf(stderr, - "Need %d argument%s to 'send %s' command. 'send %s ?' for help.\n", - s->narg, s->narg == 1 ? "" : "s", s->name, s->name); - return 0; - } - count += s->nbyte; - if ((void *)s->handler == (void *)send_help) { - send_help(); - return 0; - } - - i += s->narg; - needconnect += s->needconnect; - } - if (!connected && needconnect) { - printf("?Need to be connected first.\n"); - printf("'send ?' for help\n"); - return 0; - } - /* Now, do we have enough room? */ - if (NETROOM() < count) { - printf("There is not enough room in the buffer TO the network\n"); - printf("to process your request. Nothing will be done.\n"); - printf("('send synch' will throw away most data in the network\n"); - printf("buffer, if this might help.)\n"); - return 0; - } - /* OK, they are all OK, now go through again and actually send */ - count = 0; - for (i = 1; i < argc; i++) { - if ((s = GETSEND(argv[i])) == 0) { - fprintf(stderr, "Telnet 'send' error - argument disappeared!\n"); - quit(); - /*NOTREACHED*/ - } - if (s->handler) { - count++; - success += (*s->handler)((s->narg > 0) ? argv[i+1] : 0, - (s->narg > 1) ? argv[i+2] : 0); - i += s->narg; - } else { - NET2ADD(IAC, s->what); - printoption("SENT", IAC, s->what); - } - } - return (count == success); -} - -static int -send_esc(void) -{ - NETADD(escape); - return 1; -} - -static int -send_docmd(char *name) -{ - return(send_tncmd(send_do, "do", name)); -} - -static int -send_dontcmd(name) - char *name; -{ - return(send_tncmd(send_dont, "dont", name)); -} - -static int -send_willcmd(char *name) -{ - return(send_tncmd(send_will, "will", name)); -} - -static int -send_wontcmd(char *name) -{ - return(send_tncmd(send_wont, "wont", name)); -} - -static int -send_tncmd(void (*func)(int, int), const char *cmd, char *name) -{ - char **cpp; - extern char *telopts[]; - int val = 0; - - if (isprefix(name, "help") || isprefix(name, "?")) { - int col, len; - - printf("usage: send %s <value|option>\n", cmd); - printf("\"value\" must be from 0 to 255\n"); - printf("Valid options are:\n\t"); - - col = 8; - for (cpp = telopts; *cpp; cpp++) { - len = strlen(*cpp) + 3; - if (col + len > 65) { - printf("\n\t"); - col = 8; - } - printf(" \"%s\"", *cpp); - col += len; - } - printf("\n"); - return 0; - } - cpp = (char **)genget(name, telopts, sizeof(char *)); - if (Ambiguous(cpp)) { - fprintf(stderr,"'%s': ambiguous argument ('send %s ?' for help).\n", - name, cmd); - return 0; - } - if (cpp) { - val = cpp - telopts; - } else { - char *cp = name; - - while (*cp >= '0' && *cp <= '9') { - val *= 10; - val += *cp - '0'; - cp++; - } - if (*cp != 0) { - fprintf(stderr, "'%s': unknown argument ('send %s ?' for help).\n", - name, cmd); - return 0; - } else if (val < 0 || val > 255) { - fprintf(stderr, "'%s': bad value ('send %s ?' for help).\n", - name, cmd); - return 0; - } - } - if (!connected) { - printf("?Need to be connected first.\n"); - return 0; - } - (*func)(val, 1); - return 1; -} - -static int -send_help(void) -{ - struct sendlist *s; /* pointer to current command */ - for (s = Sendlist; s->name; s++) { - if (s->help) - printf("%-15s %s\n", s->name, s->help); - } - return(0); -} - -/* - * The following are the routines and data structures referred - * to by the arguments to the "toggle" command. - */ - -static int -lclchars(void) -{ - donelclchars = 1; - return 1; -} - -static int -togdebug(void) -{ -#ifndef NOT43 - if (net > 0 && - (SetSockOpt(net, SOL_SOCKET, SO_DEBUG, telnet_debug)) < 0) { - perror("setsockopt (SO_DEBUG)"); - } -#else /* NOT43 */ - if (telnet_debug) { - if (net > 0 && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) - perror("setsockopt (SO_DEBUG)"); - } else - printf("Cannot turn off socket debugging\n"); -#endif /* NOT43 */ - return 1; -} - - -static int -togcrlf(void) -{ - if (crlf) { - printf("Will send carriage returns as telnet <CR><LF>.\n"); - } else { - printf("Will send carriage returns as telnet <CR><NUL>.\n"); - } - return 1; -} - -int binmode; - -static int -togbinary(int val) -{ - donebinarytoggle = 1; - - if (val >= 0) { - binmode = val; - } else { - if (my_want_state_is_will(TELOPT_BINARY) && - my_want_state_is_do(TELOPT_BINARY)) { - binmode = 1; - } else if (my_want_state_is_wont(TELOPT_BINARY) && - my_want_state_is_dont(TELOPT_BINARY)) { - binmode = 0; - } - val = binmode ? 0 : 1; - } - - if (val == 1) { - if (my_want_state_is_will(TELOPT_BINARY) && - my_want_state_is_do(TELOPT_BINARY)) { - printf("Already operating in binary mode with remote host.\n"); - } else { - printf("Negotiating binary mode with remote host.\n"); - tel_enter_binary(3); - } - } else { - if (my_want_state_is_wont(TELOPT_BINARY) && - my_want_state_is_dont(TELOPT_BINARY)) { - printf("Already in network ascii mode with remote host.\n"); - } else { - printf("Negotiating network ascii mode with remote host.\n"); - tel_leave_binary(3); - } - } - return 1; -} - -static int -togrbinary(int val) -{ - donebinarytoggle = 1; - - if (val == -1) - val = my_want_state_is_do(TELOPT_BINARY) ? 0 : 1; - - if (val == 1) { - if (my_want_state_is_do(TELOPT_BINARY)) { - printf("Already receiving in binary mode.\n"); - } else { - printf("Negotiating binary mode on input.\n"); - tel_enter_binary(1); - } - } else { - if (my_want_state_is_dont(TELOPT_BINARY)) { - printf("Already receiving in network ascii mode.\n"); - } else { - printf("Negotiating network ascii mode on input.\n"); - tel_leave_binary(1); - } - } - return 1; -} - -static int -togxbinary(int val) -{ - donebinarytoggle = 1; - - if (val == -1) - val = my_want_state_is_will(TELOPT_BINARY) ? 0 : 1; - - if (val == 1) { - if (my_want_state_is_will(TELOPT_BINARY)) { - printf("Already transmitting in binary mode.\n"); - } else { - printf("Negotiating binary mode on output.\n"); - tel_enter_binary(2); - } - } else { - if (my_want_state_is_wont(TELOPT_BINARY)) { - printf("Already transmitting in network ascii mode.\n"); - } else { - printf("Negotiating network ascii mode on output.\n"); - tel_leave_binary(2); - } - } - return 1; -} - -struct togglelist { - const char *name; /* name of toggle */ - const char *help; /* help message */ - int (*handler)(int); /* routine to do actual setting */ - int *variable; - const char *actionexplanation; -}; - -static struct togglelist Togglelist[] = { - { "autoflush", - "flushing of output when sending interrupt characters", - 0, - &autoflush, - "flush output when sending interrupt characters" }, - { "autosynch", - "automatic sending of interrupt characters in urgent mode", - 0, - &autosynch, - "send interrupt characters in urgent mode" }, - { "skiprc", - "don't read ~/.telnetrc file", - 0, - &skiprc, - "skip reading of ~/.telnetrc file" }, - { "binary", - "sending and receiving of binary data", - togbinary, - 0, - 0 }, - { "inbinary", - "receiving of binary data", - togrbinary, - 0, - 0 }, - { "outbinary", - "sending of binary data", - togxbinary, - 0, - 0 }, - { "crlf", - "sending carriage returns as telnet <CR><LF>", - (int (*)(int))togcrlf, - &crlf, - 0 }, - { "crmod", - "mapping of received carriage returns", - 0, - &crmod, - "map carriage return on output" }, - { "localchars", - "local recognition of certain control characters", - (int (*)(int))lclchars, - &localchars, - "recognize certain control characters" }, - { " ", "", NULL, NULL, NULL }, /* empty line */ - { "debug", - "debugging", - (int (*)(int))togdebug, - &telnet_debug, - "turn on socket level debugging" }, - { "netdata", - "printing of hexadecimal network data (debugging)", - 0, - &netdata, - "print hexadecimal representation of network traffic" }, - { "prettydump", - "output of \"netdata\" to user readable format (debugging)", - 0, - &prettydump, - "print user readable output for \"netdata\"" }, - { "options", - "viewing of options processing (debugging)", - 0, - &showoptions, - "show option processing" }, - { "termdata", - "(debugging) toggle printing of hexadecimal terminal data", - 0, - &termdata, - "print hexadecimal representation of terminal traffic" }, - { "?", - NULL, - (int (*)(int))togglehelp, - NULL, - NULL }, - { NULL, NULL, NULL, NULL, NULL }, - { "help", - NULL, - (int (*)(int))togglehelp, - NULL, - NULL }, - { NULL, NULL, NULL, NULL, NULL } -}; - -static int -togglehelp(void) -{ - struct togglelist *c; - - for (c = Togglelist; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s toggle %s\n", c->name, c->help); - else - printf("\n"); - } - } - printf("\n"); - printf("%-15s %s\n", "?", "display help information"); - return 0; -} - -static void -settogglehelp(int set) -{ - struct togglelist *c; - - for (c = Togglelist; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s %s %s\n", c->name, set ? "enable" : "disable", - c->help); - else - printf("\n"); - } - } -} - -#define GETTOGGLE(name) (struct togglelist *) \ - genget(name, (char **) Togglelist, sizeof(struct togglelist)) - -static int -toggle(int argc, char *argv[]) -{ - int retval = 1; - char *name; - struct togglelist *c; - - if (argc < 2) { - fprintf(stderr, - "Need an argument to 'toggle' command. 'toggle ?' for help.\n"); - return 0; - } - argc--; - argv++; - while (argc--) { - name = *argv++; - c = GETTOGGLE(name); - if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('toggle ?' for help).\n", - name); - return 0; - } else if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('toggle ?' for help).\n", - name); - return 0; - } else { - if (c->variable) { - *c->variable = !*c->variable; /* invert it */ - if (c->actionexplanation) { - printf("%s %s.\n", *c->variable? "Will" : "Won't", - c->actionexplanation); - } - } - if (c->handler) { - retval &= (*c->handler)(-1); - } - } - } - return retval; -} - -/* - * The following perform the "set" command. - */ - -#ifdef USE_TERMIO -struct termio new_tc = { 0, 0, 0, 0, {}, 0, 0 }; -#endif - -struct setlist { - const char *name; /* name */ - const char *help; /* help information */ - void (*handler)(char *); - cc_t *charp; /* where it is located at */ -}; - -static struct setlist Setlist[] = { -#ifdef KLUDGELINEMODE - { "echo", "character to toggle local echoing on/off", NULL, &echoc }, -#endif - { "escape", "character to escape back to telnet command mode", NULL, &escape }, - { "rlogin", "rlogin escape character", 0, &rlogin }, - { "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile}, - { " ", "", NULL, NULL }, - { " ", "The following need 'localchars' to be toggled true", NULL, NULL }, - { "flushoutput", "character to cause an Abort Output", NULL, termFlushCharp }, - { "interrupt", "character to cause an Interrupt Process", NULL, termIntCharp }, - { "quit", "character to cause an Abort process", NULL, termQuitCharp }, - { "eof", "character to cause an EOF ", NULL, termEofCharp }, - { " ", "", NULL, NULL }, - { " ", "The following are for local editing in linemode", NULL, NULL }, - { "erase", "character to use to erase a character", NULL, termEraseCharp }, - { "kill", "character to use to erase a line", NULL, termKillCharp }, - { "lnext", "character to use for literal next", NULL, termLiteralNextCharp }, - { "susp", "character to cause a Suspend Process", NULL, termSuspCharp }, - { "reprint", "character to use for line reprint", NULL, termRprntCharp }, - { "worderase", "character to use to erase a word", NULL, termWerasCharp }, - { "start", "character to use for XON", NULL, termStartCharp }, - { "stop", "character to use for XOFF", NULL, termStopCharp }, - { "forw1", "alternate end of line character", NULL, termForw1Charp }, - { "forw2", "alternate end of line character", NULL, termForw2Charp }, - { "ayt", "alternate AYT character", NULL, termAytCharp }, - { NULL, NULL, NULL, NULL } -}; - -static struct setlist * -getset(char *name) -{ - return (struct setlist *) - genget(name, (char **) Setlist, sizeof(struct setlist)); -} - -void -set_escape_char(char *s) -{ - if (rlogin != _POSIX_VDISABLE) { - rlogin = (s && *s) ? special(s) : _POSIX_VDISABLE; - printf("Telnet rlogin escape character is '%s'.\n", - control(rlogin)); - } else { - escape = (s && *s) ? special(s) : _POSIX_VDISABLE; - printf("Telnet escape character is '%s'.\n", control(escape)); - } -} - -static int -setcmd(int argc, char *argv[]) -{ - int value; - struct setlist *ct; - struct togglelist *c; - - if (argc < 2 || argc > 3) { - printf("Format is 'set Name Value'\n'set ?' for help.\n"); - return 0; - } - if ((argc == 2) && (isprefix(argv[1], "?") || isprefix(argv[1], "help"))) { - for (ct = Setlist; ct->name; ct++) - printf("%-15s %s\n", ct->name, ct->help); - printf("\n"); - settogglehelp(1); - printf("%-15s %s\n", "?", "display help information"); - return 0; - } - - ct = getset(argv[1]); - if (ct == 0) { - c = GETTOGGLE(argv[1]); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('set ?' for help).\n", - argv[1]); - return 0; - } else if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n", - argv[1]); - return 0; - } - if (c->variable) { - if ((argc == 2) || (strcmp("on", argv[2]) == 0)) - *c->variable = 1; - else if (strcmp("off", argv[2]) == 0) - *c->variable = 0; - else { - printf("Format is 'set togglename [on|off]'\n'set ?' for help.\n"); - return 0; - } - if (c->actionexplanation) { - printf("%s %s.\n", *c->variable? "Will" : "Won't", - c->actionexplanation); - } - } - if (c->handler) - (*c->handler)(1); - } else if (argc != 3) { - printf("Format is 'set Name Value'\n'set ?' for help.\n"); - return 0; - } else if (Ambiguous((void *)ct)) { - fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n", - argv[1]); - return 0; - } else if (ct->handler) { - (*ct->handler)(argv[2]); - printf("%s set to \"%s\".\n", ct->name, (char *)ct->charp); - } else { - if (strcmp("off", argv[2])) { - value = special(argv[2]); - } else { - value = _POSIX_VDISABLE; - } - *(ct->charp) = (cc_t)value; - printf("%s character is '%s'.\n", ct->name, control(*(ct->charp))); - } - slc_check(); - return 1; -} - -static int -unsetcmd(int argc, char *argv[]) -{ - struct setlist *ct; - struct togglelist *c; - char *name; - - if (argc < 2) { - fprintf(stderr, - "Need an argument to 'unset' command. 'unset ?' for help.\n"); - return 0; - } - if (isprefix(argv[1], "?") || isprefix(argv[1], "help")) { - for (ct = Setlist; ct->name; ct++) - printf("%-15s %s\n", ct->name, ct->help); - printf("\n"); - settogglehelp(0); - printf("%-15s %s\n", "?", "display help information"); - return 0; - } - - argc--; - argv++; - while (argc--) { - name = *argv++; - ct = getset(name); - if (ct == 0) { - c = GETTOGGLE(name); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('unset ?' for help).\n", - name); - return 0; - } else if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n", - name); - return 0; - } - if (c->variable) { - *c->variable = 0; - if (c->actionexplanation) { - printf("%s %s.\n", *c->variable? "Will" : "Won't", - c->actionexplanation); - } - } - if (c->handler) - (*c->handler)(0); - } else if (Ambiguous((void *)ct)) { - fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n", - name); - return 0; - } else if (ct->handler) { - (*ct->handler)(0); - printf("%s reset to \"%s\".\n", ct->name, (char *)ct->charp); - } else { - *(ct->charp) = _POSIX_VDISABLE; - printf("%s character is '%s'.\n", ct->name, control(*(ct->charp))); - } - } - return 1; -} - -/* - * The following are the data structures and routines for the - * 'mode' command. - */ -#ifdef KLUDGELINEMODE -extern int kludgelinemode; - -static int -dokludgemode(void) -{ - kludgelinemode = 1; - send_wont(TELOPT_LINEMODE, 1); - send_dont(TELOPT_SGA, 1); - send_dont(TELOPT_ECHO, 1); - return 1; -} -#endif - -static int -dolinemode(void) -{ -#ifdef KLUDGELINEMODE - if (kludgelinemode) - send_dont(TELOPT_SGA, 1); -#endif - send_will(TELOPT_LINEMODE, 1); - send_dont(TELOPT_ECHO, 1); - return 1; -} - -static int -docharmode(void) -{ -#ifdef KLUDGELINEMODE - if (kludgelinemode) - send_do(TELOPT_SGA, 1); - else -#endif - send_wont(TELOPT_LINEMODE, 1); - send_do(TELOPT_ECHO, 1); - return 1; -} - -static int -dolmmode(int bit, int on) -{ - unsigned char c; - extern int linemode; - - if (my_want_state_is_wont(TELOPT_LINEMODE)) { - printf("?Need to have LINEMODE option enabled first.\n"); - printf("'mode ?' for help.\n"); - return 0; - } - - if (on) - c = (linemode | bit); - else - c = (linemode & ~bit); - lm_mode(&c, 1, 1); - return 1; -} - -static int -setmod(int bit) -{ - return dolmmode(bit, 1); -} - -static int -clearmode(int bit) -{ - return dolmmode(bit, 0); -} - -struct modelist { - const char *name; /* command name */ - const char *help; /* help string */ - int (*handler)(int);/* routine which executes command */ - int needconnect; /* Do we need to be connected to execute? */ - int arg1; -}; - -static struct modelist ModeList[] = { - { "character", "Disable LINEMODE option", (int (*)(int))docharmode, 1, 0 }, -#ifdef KLUDGELINEMODE - { "", "(or disable obsolete line-by-line mode)", NULL, 0, 0 }, -#endif - { "line", "Enable LINEMODE option", (int (*)(int))dolinemode, 1, 0 }, -#ifdef KLUDGELINEMODE - { "", "(or enable obsolete line-by-line mode)", NULL, 0, 0 }, -#endif - { "", "", NULL, 0, 0 }, - { "", "These require the LINEMODE option to be enabled", NULL, 0, 0 }, - { "isig", "Enable signal trapping", setmod, 1, MODE_TRAPSIG }, - { "+isig", 0, setmod, 1, MODE_TRAPSIG }, - { "-isig", "Disable signal trapping", clearmode, 1, MODE_TRAPSIG }, - { "edit", "Enable character editing", setmod, 1, MODE_EDIT }, - { "+edit", 0, setmod, 1, MODE_EDIT }, - { "-edit", "Disable character editing", clearmode, 1, MODE_EDIT }, - { "softtabs", "Enable tab expansion", setmod, 1, MODE_SOFT_TAB }, - { "+softtabs", 0, setmod, 1, MODE_SOFT_TAB }, - { "-softtabs", "Disable character editing", clearmode, 1, MODE_SOFT_TAB }, - { "litecho", "Enable literal character echo", setmod, 1, MODE_LIT_ECHO }, - { "+litecho", 0, setmod, 1, MODE_LIT_ECHO }, - { "-litecho", "Disable literal character echo", clearmode, 1, MODE_LIT_ECHO }, - { "help", 0, (int (*)(int))modehelp, 0, 0 }, -#ifdef KLUDGELINEMODE - { "kludgeline", 0, (int (*)(int))dokludgemode, 1, 0 }, -#endif - { "", "", NULL, 0, 0 }, - { "?", "Print help information", (int (*)(int))modehelp, 0, 0 }, - { NULL, NULL, NULL, 0, 0 }, -}; - - -static int -modehelp(void) -{ - struct modelist *mt; - - printf("format is: 'mode Mode', where 'Mode' is one of:\n\n"); - for (mt = ModeList; mt->name; mt++) { - if (mt->help) { - if (*mt->help) - printf("%-15s %s\n", mt->name, mt->help); - else - printf("\n"); - } - } - return 0; -} - -#define GETMODECMD(name) (struct modelist *) \ - genget(name, (char **) ModeList, sizeof(struct modelist)) - -static int -modecmd(int argc, char *argv[]) -{ - struct modelist *mt; - - if (argc != 2) { - printf("'mode' command requires an argument\n"); - printf("'mode ?' for help.\n"); - } else if ((mt = GETMODECMD(argv[1])) == 0) { - fprintf(stderr, "Unknown mode '%s' ('mode ?' for help).\n", argv[1]); - } else if (Ambiguous((void *)mt)) { - fprintf(stderr, "Ambiguous mode '%s' ('mode ?' for help).\n", argv[1]); - } else if (mt->needconnect && !connected) { - printf("?Need to be connected first.\n"); - printf("'mode ?' for help.\n"); - } else if (mt->handler) { - return (*mt->handler)(mt->arg1); - } - return 0; -} - -/* - * The following data structures and routines implement the - * "display" command. - */ - -static int -display(int argc, char *argv[]) -{ - struct togglelist *tl; - struct setlist *sl; - -#define dotog(tl) if (tl->variable && tl->actionexplanation) { \ - if (*tl->variable) { \ - printf("will"); \ - } else { \ - printf("won't"); \ - } \ - printf(" %s.\n", tl->actionexplanation); \ - } - -#define doset(sl) if (sl->name && *sl->name != ' ') { \ - if (sl->handler == 0) \ - printf("%-15s [%s]\n", sl->name, control(*sl->charp)); \ - else \ - printf("%-15s \"%s\"\n", sl->name, (char *)sl->charp); \ - } - - if (argc == 1) { - for (tl = Togglelist; tl->name; tl++) { - dotog(tl); - } - printf("\n"); - for (sl = Setlist; sl->name; sl++) { - doset(sl); - } - } else { - int i; - - for (i = 1; i < argc; i++) { - sl = getset(argv[i]); - tl = GETTOGGLE(argv[i]); - if (Ambiguous((void *)sl) || Ambiguous((void *)tl)) { - printf("?Ambiguous argument '%s'.\n", argv[i]); - return 0; - } else if (!sl && !tl) { - printf("?Unknown argument '%s'.\n", argv[i]); - return 0; - } else { - if (tl) { - dotog(tl); - } - if (sl) { - doset(sl); - } - } - } - } -/*@*/optionstatus(); - return 1; -#undef doset -#undef dotog -} - -/* - * The following are the data structures, and many of the routines, - * relating to command processing. - */ - -/* - * Set the escape character. - */ -static int -setescape(int argc, char *argv[]) -{ - char *arg; - char buf[50]; - - printf( - "Deprecated usage - please use 'set escape%s%s' in the future.\n", - (argc > 2)? " ":"", (argc > 2)? argv[1]: ""); - if (argc > 2) - arg = argv[1]; - else { - printf("new escape character: "); - (void) fgets(buf, sizeof(buf), stdin); - arg = buf; - } - if (arg[0] != '\0') - escape = arg[0]; - (void) fflush(stdout); - return 1; -} - -static int -togcrmod(void) -{ - crmod = !crmod; - printf("Deprecated usage - please use 'toggle crmod' in the future.\n"); - printf("%s map carriage return on output.\n", crmod ? "Will" : "Won't"); - (void) fflush(stdout); - return 1; -} - -static int -suspend(void) -{ -#ifdef SIGTSTP - setcommandmode(); - { - long oldrows, oldcols, newrows, newcols, err_; - - err_ = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0; - (void) kill(0, SIGTSTP); - /* - * If we didn't get the window size before the SUSPEND, but we - * can get them now (?), then send the NAWS to make sure that - * we are set up for the right window size. - */ - if (TerminalWindowSize(&newrows, &newcols) && connected && - (err_ || ((oldrows != newrows) || (oldcols != newcols)))) { - sendnaws(); - } - } - /* reget parameters in case they were changed */ - TerminalSaveState(); - setconnmode(0); -#else - printf("Suspend is not supported. Try the '!' command instead\n"); -#endif - return 1; -} - -static int -shell(int argc, char *argv[] __unused) -{ - long oldrows, oldcols, newrows, newcols, err_; - - setcommandmode(); - - err_ = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0; - switch(vfork()) { - case -1: - perror("Fork failed\n"); - break; - - case 0: - { - /* - * Fire up the shell in the child. - */ - const char *shellp, *shellname; - - shellp = getenv("SHELL"); - if (shellp == NULL) - shellp = "/bin/sh"; - if ((shellname = strrchr(shellp, '/')) == 0) - shellname = shellp; - else - shellname++; - if (argc > 1) - execl(shellp, shellname, "-c", &saveline[1], (char *)0); - else - execl(shellp, shellname, (char *)0); - perror("Execl"); - _exit(1); - } - default: - (void)wait((int *)0); /* Wait for the shell to complete */ - - if (TerminalWindowSize(&newrows, &newcols) && connected && - (err_ || ((oldrows != newrows) || (oldcols != newcols)))) { - sendnaws(); - } - break; - } - return 1; -} - -static int -bye(int argc, char *argv[]) -{ - extern int resettermname; - - if (connected) { - (void) shutdown(net, 2); - printf("Connection closed.\n"); - (void) NetClose(net); - connected = 0; - resettermname = 1; - /* reset options */ - tninit(); - } - if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) { - longjmp(toplevel, 1); - /* NOTREACHED */ - } - return 1; /* Keep lint, etc., happy */ -} - -void -quit(void) -{ - (void) call(bye, "bye", "fromquit", 0); - Exit(0); -} - -static int -logout(void) -{ - send_do(TELOPT_LOGOUT, 1); - (void) netflush(); - return 1; -} - - -/* - * The SLC command. - */ - -struct slclist { - const char *name; - const char *help; - void (*handler)(int); - int arg; -}; - -static void slc_help(void); - -struct slclist SlcList[] = { - { "export", "Use local special character definitions", - (void (*)(int))slc_mode_export, 0 }, - { "import", "Use remote special character definitions", - slc_mode_import, 1 }, - { "check", "Verify remote special character definitions", - slc_mode_import, 0 }, - { "help", NULL, (void (*)(int))slc_help, 0 }, - { "?", "Print help information", (void (*)(int))slc_help, 0 }, - { NULL, NULL, NULL, 0 }, -}; - -static void -slc_help(void) -{ - struct slclist *c; - - for (c = SlcList; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s %s\n", c->name, c->help); - else - printf("\n"); - } - } -} - -static struct slclist * -getslc(char *name) -{ - return (struct slclist *) - genget(name, (char **) SlcList, sizeof(struct slclist)); -} - -static int -slccmd(int argc, char *argv[]) -{ - struct slclist *c; - - if (argc != 2) { - fprintf(stderr, - "Need an argument to 'slc' command. 'slc ?' for help.\n"); - return 0; - } - c = getslc(argv[1]); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('slc ?' for help).\n", - argv[1]); - return 0; - } - if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('slc ?' for help).\n", - argv[1]); - return 0; - } - (*c->handler)(c->arg); - slcstate(); - return 1; -} - -/* - * The ENVIRON command. - */ - -struct envlist { - const char *name; - const char *help; - void (*handler)(unsigned char *, unsigned char *); - int narg; -}; - -extern struct env_lst * - env_define(const unsigned char *, unsigned char *); -extern void - env_undefine(unsigned char *), - env_export(const unsigned char *), - env_unexport(const unsigned char *), - env_send(unsigned char *), -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - env_varval(unsigned char *), -#endif - env_list(void); -static void - env_help(void); - -struct envlist EnvList[] = { - { "define", "Define an environment variable", - (void (*)(unsigned char *, unsigned char *))env_define, 2 }, - { "undefine", "Undefine an environment variable", - (void (*)(unsigned char *, unsigned char *))env_undefine, 1 }, - { "export", "Mark an environment variable for automatic export", - (void (*)(unsigned char *, unsigned char *))env_export, 1 }, - { "unexport", "Don't mark an environment variable for automatic export", - (void (*)(unsigned char *, unsigned char *))env_unexport, 1 }, - { "send", "Send an environment variable", (void (*)(unsigned char *, unsigned char *))env_send, 1 }, - { "list", "List the current environment variables", - (void (*)(unsigned char *, unsigned char *))env_list, 0 }, -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - { "varval", "Reverse VAR and VALUE (auto, right, wrong, status)", - (void (*)(unsigned char *, unsigned char *))env_varval, 1 }, -#endif - { "help", NULL, (void (*)(unsigned char *, unsigned char *))env_help, 0 }, - { "?", "Print help information", (void (*)(unsigned char *, unsigned char *))env_help, 0 }, - { NULL, NULL, NULL, 0 }, -}; - -static void -env_help(void) -{ - struct envlist *c; - - for (c = EnvList; c->name; c++) { - if (c->help) { - if (*c->help) - printf("%-15s %s\n", c->name, c->help); - else - printf("\n"); - } - } -} - -static struct envlist * -getenvcmd(char *name) -{ - return (struct envlist *) - genget(name, (char **) EnvList, sizeof(struct envlist)); -} - -static int -env_cmd(int argc, char *argv[]) -{ - struct envlist *c; - - if (argc < 2) { - fprintf(stderr, - "Need an argument to 'environ' command. 'environ ?' for help.\n"); - return 0; - } - c = getenvcmd(argv[1]); - if (c == 0) { - fprintf(stderr, "'%s': unknown argument ('environ ?' for help).\n", - argv[1]); - return 0; - } - if (Ambiguous((void *)c)) { - fprintf(stderr, "'%s': ambiguous argument ('environ ?' for help).\n", - argv[1]); - return 0; - } - if (c->narg + 2 != argc) { - fprintf(stderr, - "Need %s%d argument%s to 'environ %s' command. 'environ ?' for help.\n", - c->narg < argc + 2 ? "only " : "", - c->narg, c->narg == 1 ? "" : "s", c->name); - return 0; - } - (*c->handler)(argv[2], argv[3]); - return 1; -} - -struct env_lst { - struct env_lst *next; /* pointer to next structure */ - struct env_lst *prev; /* pointer to previous structure */ - unsigned char *var; /* pointer to variable name */ - unsigned char *value; /* pointer to variable value */ - int export; /* 1 -> export with default list of variables */ - int welldefined; /* A well defined variable */ -}; - -struct env_lst envlisthead; - -static struct env_lst * -env_find(const unsigned char *var) -{ - struct env_lst *ep; - - for (ep = envlisthead.next; ep; ep = ep->next) { - if (strcmp(ep->var, var) == 0) - return(ep); - } - return(NULL); -} - -void -env_init(void) -{ - extern char **environ; - char **epp, *cp; - struct env_lst *ep; - - for (epp = environ; *epp; epp++) { - if ((cp = strchr(*epp, '='))) { - *cp = '\0'; - ep = env_define((unsigned char *)*epp, - (unsigned char *)cp+1); - ep->export = 0; - *cp = '='; - } - } - /* - * Special case for DISPLAY variable. If it is ":0.0" or - * "unix:0.0", we have to get rid of "unix" and insert our - * hostname. - */ - if ((ep = env_find("DISPLAY")) - && ((*ep->value == ':') - || (strncmp((char *)ep->value, "unix:", 5) == 0))) { - char hbuf[256+1]; - char *cp2 = strchr((char *)ep->value, ':'); - - gethostname(hbuf, 256); - hbuf[256] = '\0'; - cp = (char *)malloc(strlen(hbuf) + strlen(cp2) + 1); - sprintf((char *)cp, "%s%s", hbuf, cp2); - free(ep->value); - ep->value = (unsigned char *)cp; - } - /* - * If USER is not defined, but LOGNAME is, then add - * USER with the value from LOGNAME. By default, we - * don't export the USER variable. - */ - if ((env_find("USER") == NULL) && (ep = env_find("LOGNAME"))) { - env_define("USER", ep->value); - env_unexport("USER"); - } - env_export("DISPLAY"); - env_export("PRINTER"); -} - -struct env_lst * -env_define(const unsigned char *var, unsigned char *value) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) { - if (ep->var) - free(ep->var); - if (ep->value) - free(ep->value); - } else { - ep = (struct env_lst *)malloc(sizeof(struct env_lst)); - ep->next = envlisthead.next; - envlisthead.next = ep; - ep->prev = &envlisthead; - if (ep->next) - ep->next->prev = ep; - } - ep->welldefined = opt_welldefined(var); - ep->export = 1; - ep->var = strdup(var); - ep->value = strdup(value); - return(ep); -} - -void -env_undefine(unsigned char *var) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) { - ep->prev->next = ep->next; - if (ep->next) - ep->next->prev = ep->prev; - if (ep->var) - free(ep->var); - if (ep->value) - free(ep->value); - free(ep); - } -} - -void -env_export(const unsigned char *var) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) - ep->export = 1; -} - -void -env_unexport(const unsigned char *var) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) - ep->export = 0; -} - -void -env_send(unsigned char *var) -{ - struct env_lst *ep; - - if (my_state_is_wont(TELOPT_NEW_ENVIRON) -#ifdef OLD_ENVIRON - && my_state_is_wont(TELOPT_OLD_ENVIRON) -#endif - ) { - fprintf(stderr, - "Cannot send '%s': Telnet ENVIRON option not enabled\n", - var); - return; - } - ep = env_find(var); - if (ep == 0) { - fprintf(stderr, "Cannot send '%s': variable not defined\n", - var); - return; - } - env_opt_start_info(); - env_opt_add(ep->var); - env_opt_end(0); -} - -void -env_list(void) -{ - struct env_lst *ep; - - for (ep = envlisthead.next; ep; ep = ep->next) { - printf("%c %-20s %s\n", ep->export ? '*' : ' ', - ep->var, ep->value); - } -} - -unsigned char * -env_default(int init, int welldefined) -{ - static struct env_lst *nep = NULL; - - if (init) { - nep = &envlisthead; - return(NULL); - } - if (nep) { - while ((nep = nep->next)) { - if (nep->export && (nep->welldefined == welldefined)) - return(nep->var); - } - } - return(NULL); -} - -unsigned char * -env_getvalue(const unsigned char *var) -{ - struct env_lst *ep; - - if ((ep = env_find(var))) - return(ep->value); - return(NULL); -} - -#if defined(OLD_ENVIRON) && defined(ENV_HACK) -void -env_varval(unsigned char *what) -{ - extern int old_env_var, old_env_value, env_auto; - int len = strlen((char *)what); - - if (len == 0) - goto unknown; - - if (strncasecmp((char *)what, "status", len) == 0) { - if (env_auto) - printf("%s%s", "VAR and VALUE are/will be ", - "determined automatically\n"); - if (old_env_var == OLD_ENV_VAR) - printf("VAR and VALUE set to correct definitions\n"); - else - printf("VAR and VALUE definitions are reversed\n"); - } else if (strncasecmp((char *)what, "auto", len) == 0) { - env_auto = 1; - old_env_var = OLD_ENV_VALUE; - old_env_value = OLD_ENV_VAR; - } else if (strncasecmp((char *)what, "right", len) == 0) { - env_auto = 0; - old_env_var = OLD_ENV_VAR; - old_env_value = OLD_ENV_VALUE; - } else if (strncasecmp((char *)what, "wrong", len) == 0) { - env_auto = 0; - old_env_var = OLD_ENV_VALUE; - old_env_value = OLD_ENV_VAR; - } else { -unknown: - printf("Unknown \"varval\" command. (\"auto\", \"right\", \"wrong\", \"status\")\n"); - } -} -#endif - - - -/* - * Print status about the connection. - */ -/*ARGSUSED*/ -static int -status(int argc, char *argv[]) -{ - if (connected) { - printf("Connected to %s.\n", hostname); - if ((argc < 2) || strcmp(argv[1], "notmuch")) { - int mode = getconnmode(); - - if (my_want_state_is_will(TELOPT_LINEMODE)) { - printf("Operating with LINEMODE option\n"); - printf("%s line editing\n", (mode&MODE_EDIT) ? "Local" : "No"); - printf("%s catching of signals\n", - (mode&MODE_TRAPSIG) ? "Local" : "No"); - slcstate(); -#ifdef KLUDGELINEMODE - } else if (kludgelinemode && my_want_state_is_dont(TELOPT_SGA)) { - printf("Operating in obsolete linemode\n"); -#endif - } else { - printf("Operating in single character mode\n"); - if (localchars) - printf("Catching signals locally\n"); - } - printf("%s character echo\n", (mode&MODE_ECHO) ? "Local" : "Remote"); - if (my_want_state_is_will(TELOPT_LFLOW)) - printf("%s flow control\n", (mode&MODE_FLOW) ? "Local" : "No"); - } - } else { - printf("No connection.\n"); - } - printf("Escape character is '%s'.\n", control(escape)); - (void) fflush(stdout); - return 1; -} - -#ifdef SIGINFO -/* - * Function that gets called when SIGINFO is received. - */ -void -ayt_status(void) -{ - (void) call(status, "status", "notmuch", 0); -} -#endif - -static const char * -sockaddr_ntop(struct sockaddr *sa) -{ - void *addr; - static char addrbuf[INET6_ADDRSTRLEN]; - - switch (sa->sa_family) { - case AF_INET: - addr = &((struct sockaddr_in *)sa)->sin_addr; - break; - case AF_UNIX: - addr = &((struct sockaddr_un *)sa)->sun_path; - break; -#ifdef INET6 - case AF_INET6: - addr = &((struct sockaddr_in6 *)sa)->sin6_addr; - break; -#endif - default: - return NULL; - } - inet_ntop(sa->sa_family, addr, addrbuf, sizeof(addrbuf)); - return addrbuf; -} - -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) -static int -setpolicy(int lnet, struct addrinfo *res, char *policy) -{ - char *buf; - int level; - int optname; - - if (policy == NULL) - return 0; - - buf = ipsec_set_policy(policy, strlen(policy)); - if (buf == NULL) { - printf("%s\n", ipsec_strerror()); - return -1; - } - level = res->ai_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6; - optname = res->ai_family == AF_INET ? IP_IPSEC_POLICY : IPV6_IPSEC_POLICY; - if (setsockopt(lnet, level, optname, buf, ipsec_get_policylen(buf)) < 0){ - perror("setsockopt"); - return -1; - } - - free(buf); - return 0; -} -#endif - -#ifdef INET6 -/* - * When an Address Family related error happend, check if retry with - * another AF is possible or not. - * Return 1, if retry with another af is OK. Else, return 0. - */ -static int -switch_af(struct addrinfo **aip) -{ - int nextaf; - struct addrinfo *ai; - - ai = *aip; - nextaf = (ai->ai_family == AF_INET) ? AF_INET6 : AF_INET; - do - ai=ai->ai_next; - while (ai != NULL && ai->ai_family != nextaf); - *aip = ai; - if (*aip != NULL) { - return 1; - } - return 0; -} -#endif - -int -tn(int argc, char *argv[]) -{ - char *srp = 0; - int proto, opt; - int srlen; - int srcroute = 0, result; - char *cmd, *hostp = 0, *portp = 0, *user = 0; - char *src_addr = NULL; - struct addrinfo hints, *res, *res0 = NULL, *src_res, *src_res0 = NULL; - int error = 0, af_error = 0; - - if (connected) { - printf("?Already connected to %s\n", hostname); - setuid(getuid()); - return 0; - } - if (argc < 2) { - (void) strcpy(line, "open "); - printf("(to) "); - (void) fgets(&line[strlen(line)], sizeof(line) - strlen(line), stdin); - makeargv(); - argc = margc; - argv = margv; - } - cmd = *argv; - --argc; ++argv; - while (argc) { - if (strcmp(*argv, "help") == 0 || isprefix(*argv, "?")) - goto usage; - if (strcmp(*argv, "-l") == 0) { - --argc; ++argv; - if (argc == 0) - goto usage; - user = *argv++; - --argc; - continue; - } - if (strcmp(*argv, "-a") == 0) { - --argc; ++argv; - autologin = 1; - continue; - } - if (strcmp(*argv, "-s") == 0) { - --argc; ++argv; - if (argc == 0) - goto usage; - src_addr = *argv++; - --argc; - continue; - } - if (hostp == 0) { - hostp = *argv++; - --argc; - continue; - } - if (portp == 0) { - portp = *argv++; - --argc; - continue; - } - usage: - printf("usage: %s [-l user] [-a] [-s src_addr] host-name [port]\n", cmd); - setuid(getuid()); - return 0; - } - if (hostp == 0) - goto usage; - - if (src_addr != NULL) { - memset(&hints, 0, sizeof(hints)); - hints.ai_family = family; - hints.ai_socktype = SOCK_STREAM; - error = getaddrinfo(src_addr, 0, &hints, &src_res); - if (error == EAI_NODATA) { - hints.ai_flags = 0; - error = getaddrinfo(src_addr, 0, &hints, &src_res); - } - if (error != 0) { - fprintf(stderr, "%s: %s\n", src_addr, gai_strerror(error)); - if (error == EAI_SYSTEM) - fprintf(stderr, "%s: %s\n", src_addr, strerror(errno)); - setuid(getuid()); - return 0; - } - src_res0 = src_res; - } - if (hostp[0] == '/') { - struct sockaddr_un su; - - if (strlen(hostp) >= sizeof(su.sun_path)) { - fprintf(stderr, "hostname too long for unix domain socket: %s", - hostp); - goto fail; - } - memset(&su, 0, sizeof su); - su.sun_family = AF_UNIX; - strncpy(su.sun_path, hostp, sizeof su.sun_path); - printf("Trying %s...\n", hostp); - net = socket(PF_UNIX, SOCK_STREAM, 0); - if ( net < 0) { - perror("socket"); - goto fail; - } - if (connect(net, (struct sockaddr *)&su, sizeof su) == -1) { - perror(su.sun_path); - (void) NetClose(net); - goto fail; - } - goto af_unix; - } else if (hostp[0] == '@' || hostp[0] == '!') { - if ( -#ifdef INET6 - family == AF_INET6 || -#endif - (hostname = strrchr(hostp, ':')) == NULL) - hostname = strrchr(hostp, '@'); - if (hostname == NULL) { - hostname = hostp; - } else { - hostname++; - srcroute = 1; - } - } else - hostname = hostp; - if (!portp) { - telnetport = 1; - portp = strdup("telnet"); - } else if (*portp == '-') { - portp++; - telnetport = 1; - } else - telnetport = 0; - - memset(&hints, 0, sizeof(hints)); - hints.ai_flags = AI_NUMERICHOST; - hints.ai_family = family; - hints.ai_socktype = SOCK_STREAM; - error = getaddrinfo(hostname, portp, &hints, &res); - if (error) { - hints.ai_flags = AI_CANONNAME; - error = getaddrinfo(hostname, portp, &hints, &res); - } - if (error != 0) { - fprintf(stderr, "%s: %s\n", hostname, gai_strerror(error)); - if (error == EAI_SYSTEM) - fprintf(stderr, "%s: %s\n", hostname, strerror(errno)); - setuid(getuid()); - goto fail; - } - if (hints.ai_flags == AI_NUMERICHOST) { - /* hostname has numeric */ - int gni_err = 1; - - if (doaddrlookup) - gni_err = getnameinfo(res->ai_addr, res->ai_addr->sa_len, - _hostname, sizeof(_hostname) - 1, NULL, 0, - NI_NAMEREQD); - if (gni_err != 0) - (void) strncpy(_hostname, hostp, sizeof(_hostname) - 1); - _hostname[sizeof(_hostname)-1] = '\0'; - hostname = _hostname; - } else { - /* hostname has FQDN */ - if (srcroute != 0) - (void) strncpy(_hostname, hostname, sizeof(_hostname) - 1); - else if (res->ai_canonname != NULL) - strcpy(_hostname, res->ai_canonname); - else - (void) strncpy(_hostname, hostp, sizeof(_hostname) - 1); - _hostname[sizeof(_hostname)-1] = '\0'; - hostname = _hostname; - } - res0 = res; - #ifdef INET6 - af_again: - #endif - if (srcroute != 0) { - static char hostbuf[BUFSIZ]; - - if (af_error == 0) { /* save intermediate hostnames for retry */ - strncpy(hostbuf, hostp, BUFSIZ - 1); - hostbuf[BUFSIZ - 1] = '\0'; - } else - hostp = hostbuf; - srp = 0; - result = sourceroute(res, hostp, &srp, &srlen, &proto, &opt); - if (result == 0) { -#ifdef INET6 - if (family == AF_UNSPEC && af_error == 0 && - switch_af(&res) == 1) { - af_error = 1; - goto af_again; - } -#endif - setuid(getuid()); - goto fail; - } else if (result == -1) { - printf("Bad source route option: %s\n", hostp); - setuid(getuid()); - goto fail; - } - } - do { - printf("Trying %s...\n", sockaddr_ntop(res->ai_addr)); - net = socket(res->ai_family, res->ai_socktype, res->ai_protocol); - setuid(getuid()); - if (net < 0) { -#ifdef INET6 - if (family == AF_UNSPEC && af_error == 0 && - switch_af(&res) == 1) { - af_error = 1; - goto af_again; - } -#endif - perror("telnet: socket"); - goto fail; - } - if (srp && setsockopt(net, proto, opt, (char *)srp, srlen) < 0) - perror("setsockopt (source route)"); -#if defined(IPPROTO_IP) && defined(IP_TOS) - if (res->ai_family == PF_INET) { -# if defined(HAS_GETTOS) - struct tosent *tp; - if (tos < 0 && (tp = gettosbyname("telnet", "tcp"))) - tos = tp->t_tos; -# endif - if (tos < 0) - tos = IPTOS_LOWDELAY; - if (tos - && (setsockopt(net, IPPROTO_IP, IP_TOS, - (char *)&tos, sizeof(int)) < 0) - && (errno != ENOPROTOOPT)) - perror("telnet: setsockopt (IP_TOS) (ignored)"); - } -#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ - - if (telnet_debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) { - perror("setsockopt (SO_DEBUG)"); - } - - if (src_addr != NULL) { - for (src_res = src_res0; src_res != 0; src_res = src_res->ai_next) - if (src_res->ai_family == res->ai_family) - break; - if (src_res == NULL) - src_res = src_res0; - if (bind(net, src_res->ai_addr, src_res->ai_addrlen) == -1) { -#ifdef INET6 - if (family == AF_UNSPEC && af_error == 0 && - switch_af(&res) == 1) { - af_error = 1; - (void) NetClose(net); - goto af_again; - } -#endif - perror("bind"); - (void) NetClose(net); - goto fail; - } - } -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) - if (setpolicy(net, res, ipsec_policy_in) < 0) { - (void) NetClose(net); - goto fail; - } - if (setpolicy(net, res, ipsec_policy_out) < 0) { - (void) NetClose(net); - goto fail; - } -#endif - - if (connect(net, res->ai_addr, res->ai_addrlen) < 0) { - struct addrinfo *next; - - next = res->ai_next; - /* If already an af failed, only try same af. */ - if (af_error != 0) - while (next != NULL && next->ai_family != res->ai_family) - next = next->ai_next; - warn("connect to address %s", sockaddr_ntop(res->ai_addr)); - if (next != NULL) { - res = next; - (void) NetClose(net); - continue; - } - warnx("Unable to connect to remote host"); - (void) NetClose(net); - goto fail; - } - connected++; - } while (connected == 0); - freeaddrinfo(res0); - if (src_res0 != NULL) - freeaddrinfo(src_res0); - cmdrc(hostp, hostname); - af_unix: - if (autologin && user == NULL) { - struct passwd *pw; - - user = getenv("USER"); - if (user == NULL || - ((pw = getpwnam(user)) && pw->pw_uid != getuid())) { - if ((pw = getpwuid(getuid()))) - user = pw->pw_name; - else - user = NULL; - } - } - if (user) { - env_define("USER", user); - env_export("USER"); - } - (void) call(status, "status", "notmuch", 0); - if (setjmp(peerdied) == 0) - telnet(user); - (void) NetClose(net); - ExitString("Connection closed by foreign host.\n",1); - /*NOTREACHED*/ - fail: - if (res0 != NULL) - freeaddrinfo(res0); - if (src_res0 != NULL) - freeaddrinfo(src_res0); - return 0; -} - -#define HELPINDENT (sizeof ("connect")) - -static char - openhelp[] = "connect to a site", - closehelp[] = "close current connection", - logouthelp[] = "forcibly logout remote user and close the connection", - quithelp[] = "exit telnet", - statushelp[] = "print status information", - helphelp[] = "print help information", - sendhelp[] = "transmit special characters ('send ?' for more)", - sethelp[] = "set operating parameters ('set ?' for more)", - unsethelp[] = "unset operating parameters ('unset ?' for more)", - togglestring[] ="toggle operating parameters ('toggle ?' for more)", - slchelp[] = "change state of special charaters ('slc ?' for more)", - displayhelp[] = "display operating parameters", - zhelp[] = "suspend telnet", -#ifdef OPIE - opiehelp[] = "compute response to OPIE challenge", -#endif - shellhelp[] = "invoke a subshell", - envhelp[] = "change environment variables ('environ ?' for more)", - modestring[] = "try to enter line or character mode ('mode ?' for more)"; - -static Command cmdtab[] = { - { "close", closehelp, bye, 1 }, - { "logout", logouthelp, (int (*)(int, char **))logout, 1 }, - { "display", displayhelp, display, 0 }, - { "mode", modestring, modecmd, 0 }, - { "telnet", openhelp, tn, 0 }, - { "open", openhelp, tn, 0 }, - { "quit", quithelp, (int (*)(int, char **))quit, 0 }, - { "send", sendhelp, sendcmd, 0 }, - { "set", sethelp, setcmd, 0 }, - { "unset", unsethelp, unsetcmd, 0 }, - { "status", statushelp, status, 0 }, - { "toggle", togglestring, toggle, 0 }, - { "slc", slchelp, slccmd, 0 }, - { "z", zhelp, (int (*)(int, char **))suspend, 0 }, - { "!", shellhelp, shell, 1 }, - { "environ", envhelp, env_cmd, 0 }, - { "?", helphelp, help, 0 }, -#ifdef OPIE - { "opie", opiehelp, opie_calc, 0 }, -#endif - { NULL, NULL, NULL, 0 } -}; - -static char crmodhelp[] = "deprecated command -- use 'toggle crmod' instead"; -static char escapehelp[] = "deprecated command -- use 'set escape' instead"; - -static Command cmdtab2[] = { - { "help", 0, help, 0 }, - { "escape", escapehelp, setescape, 0 }, - { "crmod", crmodhelp, (int (*)(int, char **))togcrmod, 0 }, - { NULL, NULL, NULL, 0 } -}; - - -/* - * Call routine with argc, argv set from args (terminated by 0). - */ - -static int -call(intrtn_t routine, ...) -{ - va_list ap; - char *args[100]; - int argno = 0; - - va_start(ap, routine); - while ((args[argno++] = va_arg(ap, char *)) != 0); - va_end(ap); - return (*routine)(argno-1, args); -} - - -static Command * -getcmd(char *name) -{ - Command *cm; - - if ((cm = (Command *) genget(name, (char **) cmdtab, sizeof(Command)))) - return cm; - return (Command *) genget(name, (char **) cmdtab2, sizeof(Command)); -} - -void -command(int top, const char *tbuf, int cnt) -{ - Command *c; - - setcommandmode(); - if (!top) { - putchar('\n'); - } else { - (void) signal(SIGINT, SIG_DFL); - (void) signal(SIGQUIT, SIG_DFL); - } - for (;;) { - if (rlogin == _POSIX_VDISABLE) - printf("%s> ", prompt); - if (tbuf) { - char *cp; - cp = line; - while (cnt > 0 && (*cp++ = *tbuf++) != '\n') - cnt--; - tbuf = 0; - if (cp == line || *--cp != '\n' || cp == line) - goto getline; - *cp = '\0'; - if (rlogin == _POSIX_VDISABLE) - printf("%s\n", line); - } else { - getline: - if (rlogin != _POSIX_VDISABLE) - printf("%s> ", prompt); - if (fgets(line, sizeof(line), stdin) == NULL) { - if (feof(stdin) || ferror(stdin)) { - (void) quit(); - /*NOTREACHED*/ - } - break; - } - } - if (line[0] == 0) - break; - makeargv(); - if (margv[0] == 0) { - break; - } - c = getcmd(margv[0]); - if (Ambiguous((void *)c)) { - printf("?Ambiguous command\n"); - continue; - } - if (c == 0) { - printf("?Invalid command\n"); - continue; - } - if (c->needconnect && !connected) { - printf("?Need to be connected first.\n"); - continue; - } - if ((*c->handler)(margc, margv)) { - break; - } - } - if (!top) { - if (!connected) { - longjmp(toplevel, 1); - /*NOTREACHED*/ - } - setconnmode(0); - } -} - -/* - * Help command. - */ -static int -help(int argc, char *argv[]) -{ - Command *c; - - if (argc == 1) { - printf("Commands may be abbreviated. Commands are:\n\n"); - for (c = cmdtab; c->name; c++) - if (c->help) { - printf("%-*s\t%s\n", (int)HELPINDENT, c->name, - c->help); - } - return 0; - } - else while (--argc > 0) { - char *arg; - arg = *++argv; - c = getcmd(arg); - if (Ambiguous((void *)c)) - printf("?Ambiguous help command %s\n", arg); - else if (c == (Command *)0) - printf("?Invalid help command %s\n", arg); - else - printf("%s\n", c->help); - } - return 0; -} - -static char *rcname = 0; -static char rcbuf[128]; - -void -cmdrc(char *m1, char *m2) -{ - Command *c; - FILE *rcfile; - int gotmachine = 0; - int l1 = strlen(m1); - int l2 = strlen(m2); - char m1save[MAXHOSTNAMELEN]; - - if (skiprc) - return; - - strlcpy(m1save, m1, sizeof(m1save)); - m1 = m1save; - - if (rcname == 0) { - rcname = getenv("HOME"); - if (rcname && (strlen(rcname) + 10) < sizeof(rcbuf)) - strcpy(rcbuf, rcname); - else - rcbuf[0] = '\0'; - strcat(rcbuf, "/.telnetrc"); - rcname = rcbuf; - } - - if ((rcfile = fopen(rcname, "r")) == 0) { - return; - } - - for (;;) { - if (fgets(line, sizeof(line), rcfile) == NULL) - break; - if (line[0] == 0) - break; - if (line[0] == '#') - continue; - if (gotmachine) { - if (!isspace(line[0])) - gotmachine = 0; - } - if (gotmachine == 0) { - if (isspace(line[0])) - continue; - if (strncasecmp(line, m1, l1) == 0) - strncpy(line, &line[l1], sizeof(line) - l1); - else if (strncasecmp(line, m2, l2) == 0) - strncpy(line, &line[l2], sizeof(line) - l2); - else if (strncasecmp(line, "DEFAULT", 7) == 0) - strncpy(line, &line[7], sizeof(line) - 7); - else - continue; - if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n') - continue; - gotmachine = 1; - } - makeargv(); - if (margv[0] == 0) - continue; - c = getcmd(margv[0]); - if (Ambiguous((void *)c)) { - printf("?Ambiguous command: %s\n", margv[0]); - continue; - } - if (c == 0) { - printf("?Invalid command: %s\n", margv[0]); - continue; - } - /* - * This should never happen... - */ - if (c->needconnect && !connected) { - printf("?Need to be connected first for %s.\n", margv[0]); - continue; - } - (*c->handler)(margc, margv); - } - fclose(rcfile); -} - -/* - * Source route is handed in as - * [!]@hop1@hop2...[@|:]dst - * If the leading ! is present, it is a - * strict source route, otherwise it is - * assmed to be a loose source route. - * - * We fill in the source route option as - * hop1,hop2,hop3...dest - * and return a pointer to hop1, which will - * be the address to connect() to. - * - * Arguments: - * - * res: ponter to addrinfo structure which contains sockaddr to - * the host to connect to. - * - * arg: pointer to route list to decipher - * - * cpp: If *cpp is not equal to NULL, this is a - * pointer to a pointer to a character array - * that should be filled in with the option. - * - * lenp: pointer to an integer that contains the - * length of *cpp if *cpp != NULL. - * - * protop: pointer to an integer that should be filled in with - * appropriate protocol for setsockopt, as socket - * protocol family. - * - * optp: pointer to an integer that should be filled in with - * appropriate option for setsockopt, as socket protocol - * family. - * - * Return values: - * - * If the return value is 1, then all operations are - * successful. If the - * return value is -1, there was a syntax error in the - * option, either unknown characters, or too many hosts. - * If the return value is 0, one of the hostnames in the - * path is unknown, and *cpp is set to point to the bad - * hostname. - * - * *cpp: If *cpp was equal to NULL, it will be filled - * in with a pointer to our static area that has - * the option filled in. This will be 32bit aligned. - * - * *lenp: This will be filled in with how long the option - * pointed to by *cpp is. - * - * *protop: This will be filled in with appropriate protocol for - * setsockopt, as socket protocol family. - * - * *optp: This will be filled in with appropriate option for - * setsockopt, as socket protocol family. - */ -static int -sourceroute(struct addrinfo *ai, char *arg, char **cpp, int *lenp, int *protop, int *optp) -{ - static char buf[1024 + ALIGNBYTES]; /*XXX*/ - char *cp, *cp2, *lsrp, *ep; - struct sockaddr_in *_sin; -#ifdef INET6 - struct sockaddr_in6 *sin6; - struct cmsghdr *cmsg; -#endif - struct addrinfo hints, *res; - int error; - char c; - - /* - * Verify the arguments, and make sure we have - * at least 7 bytes for the option. - */ - if (cpp == NULL || lenp == NULL) - return -1; - if (*cpp != NULL) { - switch (res->ai_family) { - case AF_INET: - if (*lenp < 7) - return -1; - break; -#ifdef INET6 - case AF_INET6: - if (*lenp < (int)CMSG_SPACE(sizeof(struct ip6_rthdr) + - sizeof(struct in6_addr))) - return -1; - break; -#endif - } - } - /* - * Decide whether we have a buffer passed to us, - * or if we need to use our own static buffer. - */ - if (*cpp) { - lsrp = *cpp; - ep = lsrp + *lenp; - } else { - *cpp = lsrp = (char *)ALIGN(buf); - ep = lsrp + 1024; - } - - cp = arg; - -#ifdef INET6 - if (ai->ai_family == AF_INET6) { - cmsg = inet6_rthdr_init(*cpp, IPV6_RTHDR_TYPE_0); - if (*cp != '@') - return -1; - *protop = IPPROTO_IPV6; - *optp = IPV6_PKTOPTIONS; - } else -#endif - { - /* - * Next, decide whether we have a loose source - * route or a strict source route, and fill in - * the begining of the option. - */ - if (*cp == '!') { - cp++; - *lsrp++ = IPOPT_SSRR; - } else - *lsrp++ = IPOPT_LSRR; - - if (*cp != '@') - return -1; - - lsrp++; /* skip over length, we'll fill it in later */ - *lsrp++ = 4; - *protop = IPPROTO_IP; - *optp = IP_OPTIONS; - } - - cp++; - memset(&hints, 0, sizeof(hints)); - hints.ai_family = ai->ai_family; - hints.ai_socktype = SOCK_STREAM; - for (c = 0;;) { - if ( -#ifdef INET6 - ai->ai_family != AF_INET6 && -#endif - c == ':') - cp2 = 0; - else for (cp2 = cp; (c = *cp2); cp2++) { - if (c == ',') { - *cp2++ = '\0'; - if (*cp2 == '@') - cp2++; - } else if (c == '@') { - *cp2++ = '\0'; - } else if ( -#ifdef INET6 - ai->ai_family != AF_INET6 && -#endif - c == ':') { - *cp2++ = '\0'; - } else - continue; - break; - } - if (!c) - cp2 = 0; - - hints.ai_flags = AI_NUMERICHOST; - error = getaddrinfo(cp, NULL, &hints, &res); - if (error == EAI_NODATA) { - hints.ai_flags = 0; - error = getaddrinfo(cp, NULL, &hints, &res); - } - if (error != 0) { - fprintf(stderr, "%s: %s\n", cp, gai_strerror(error)); - if (error == EAI_SYSTEM) - fprintf(stderr, "%s: %s\n", cp, - strerror(errno)); - *cpp = cp; - return(0); - } -#ifdef INET6 - if (res->ai_family == AF_INET6) { - sin6 = (struct sockaddr_in6 *)res->ai_addr; - inet6_rthdr_add(cmsg, &sin6->sin6_addr, - IPV6_RTHDR_LOOSE); - } else -#endif - { - _sin = (struct sockaddr_in *)res->ai_addr; - memcpy(lsrp, (char *)&_sin->sin_addr, 4); - lsrp += 4; - } - if (cp2) - cp = cp2; - else - break; - /* - * Check to make sure there is space for next address - */ -#ifdef INET6 - if (res->ai_family == AF_INET6) { - if (((char *)CMSG_DATA(cmsg) + - sizeof(struct ip6_rthdr) + - ((inet6_rthdr_segments(cmsg) + 1) * - sizeof(struct in6_addr))) > ep) - return -1; - } else -#endif - if (lsrp + 4 > ep) - return -1; - freeaddrinfo(res); - } -#ifdef INET6 - if (res->ai_family == AF_INET6) { - inet6_rthdr_lasthop(cmsg, IPV6_RTHDR_LOOSE); - *lenp = cmsg->cmsg_len; - } else -#endif - { - if ((*(*cpp+IPOPT_OLEN) = lsrp - *cpp) <= 7) { - *cpp = 0; - *lenp = 0; - return -1; - } - *lsrp++ = IPOPT_NOP; /* 32 bit word align it */ - *lenp = lsrp - *cpp; - } - freeaddrinfo(res); - return 1; -} diff --git a/usr.bin/telnet/defines.h b/usr.bin/telnet/defines.h deleted file mode 100644 index 840666d..0000000 --- a/usr.bin/telnet/defines.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)defines.h 8.1 (Berkeley) 6/6/93 - * $FreeBSD$ - */ - -#define settimer(x) clocks.x = clocks.system++ - -#define NETADD(c) { *netoring.supply = c; ring_supplied(&netoring, 1); } -#define NET2ADD(c1,c2) { NETADD(c1); NETADD(c2); } -#define NETBYTES() (ring_full_count(&netoring)) -#define NETROOM() (ring_empty_count(&netoring)) - -#define TTYADD(c) if (!(SYNCHing||flushout)) { \ - *ttyoring.supply = c; \ - ring_supplied(&ttyoring, 1); \ - } -#define TTYBYTES() (ring_full_count(&ttyoring)) -#define TTYROOM() (ring_empty_count(&ttyoring)) - -/* Various modes */ -#define MODE_LOCAL_CHARS(m) ((m)&(MODE_EDIT|MODE_TRAPSIG)) -#define MODE_LOCAL_ECHO(m) ((m)&MODE_ECHO) -#define MODE_COMMAND_LINE(m) ((m)==-1) - -#define CONTROL(x) ((x)&0x1f) /* CTRL(x) is not portable */ diff --git a/usr.bin/telnet/externs.h b/usr.bin/telnet/externs.h deleted file mode 100644 index b4fd327..0000000 --- a/usr.bin/telnet/externs.h +++ /dev/null @@ -1,487 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)externs.h 8.3 (Berkeley) 5/30/95 - * $FreeBSD$ - */ - -#ifndef BSD -# define BSD 43 -#endif - -/* - * ucb stdio.h defines BSD as something weird - */ -#if defined(sun) && defined(__svr4__) -#define BSD 43 -#endif - -#ifndef USE_TERMIO -# if BSD > 43 || defined(SYSV_TERMIO) -# define USE_TERMIO -# endif -#endif - -#include <stdio.h> -#include <setjmp.h> -#include <sys/ioctl.h> -#include <errno.h> -#ifdef USE_TERMIO -# ifndef VINTR -# include <sys/termios.h> -# endif -# define termio termios -#endif -#if defined(NO_CC_T) || !defined(USE_TERMIO) -# if !defined(USE_TERMIO) -typedef char cc_t; -# else -typedef unsigned char cc_t; -# endif -#endif - -#include <string.h> - -#if defined(IPSEC) -#include <netinet6/ipsec.h> -#if defined(IPSEC_POLICY_IPSEC) -extern char *ipsec_policy_in; -extern char *ipsec_policy_out; -#endif -#endif - -#ifndef _POSIX_VDISABLE -# ifdef sun -# include <sys/param.h> /* pick up VDISABLE definition, mayby */ -# endif -# ifdef VDISABLE -# define _POSIX_VDISABLE VDISABLE -# else -# define _POSIX_VDISABLE ((cc_t)'\377') -# endif -#endif - -#define SUBBUFSIZE 256 - -#if !defined(P) -# ifdef __STDC__ -# define P(x) x -# else -# define P(x) () -# endif -#endif - -extern int - autologin, /* Autologin enabled */ - skiprc, /* Don't process the ~/.telnetrc file */ - eight, /* use eight bit mode (binary in and/or out */ - family, /* address family of peer */ - flushout, /* flush output */ - connected, /* Are we connected to the other side? */ - globalmode, /* Mode tty should be in */ - telnetport, /* Are we connected to the telnet port? */ - localflow, /* Flow control handled locally */ - restartany, /* If flow control, restart output on any character */ - localchars, /* we recognize interrupt/quit */ - donelclchars, /* the user has set "localchars" */ - showoptions, - net, /* Network file descriptor */ - tin, /* Terminal input file descriptor */ - tout, /* Terminal output file descriptor */ - crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ - autoflush, /* flush output when interrupting? */ - autosynch, /* send interrupt characters with SYNCH? */ - SYNCHing, /* Is the stream in telnet SYNCH mode? */ - donebinarytoggle, /* the user has put us in binary */ - dontlecho, /* do we suppress local echoing right now? */ - crmod, - netdata, /* Print out network data flow */ - prettydump, /* Print "netdata" output in user readable format */ - termdata, /* Print out terminal data flow */ - telnet_debug, /* Debug level */ - doaddrlookup, /* do a reverse lookup? */ - clienteof; /* Client received EOF */ - -extern cc_t escape; /* Escape to command mode */ -extern cc_t rlogin; /* Rlogin mode escape character */ -#ifdef KLUDGELINEMODE -extern cc_t echoc; /* Toggle local echoing */ -#endif - -extern char - *prompt; /* Prompt for command. */ - -extern char - doopt[], - dont[], - will[], - wont[], - options[], /* All the little options */ - *hostname; /* Who are we connected to? */ - -/* - * We keep track of each side of the option negotiation. - */ - -#define MY_STATE_WILL 0x01 -#define MY_WANT_STATE_WILL 0x02 -#define MY_STATE_DO 0x04 -#define MY_WANT_STATE_DO 0x08 - -/* - * Macros to check the current state of things - */ - -#define my_state_is_do(opt) (options[opt]&MY_STATE_DO) -#define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) -#define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) -#define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) - -#define my_state_is_dont(opt) (!my_state_is_do(opt)) -#define my_state_is_wont(opt) (!my_state_is_will(opt)) -#define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) -#define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) - -#define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;} -#define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;} -#define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;} -#define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;} - -#define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;} -#define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;} -#define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;} -#define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;} - -/* - * Make everything symetrical - */ - -#define HIS_STATE_WILL MY_STATE_DO -#define HIS_WANT_STATE_WILL MY_WANT_STATE_DO -#define HIS_STATE_DO MY_STATE_WILL -#define HIS_WANT_STATE_DO MY_WANT_STATE_WILL - -#define his_state_is_do my_state_is_will -#define his_state_is_will my_state_is_do -#define his_want_state_is_do my_want_state_is_will -#define his_want_state_is_will my_want_state_is_do - -#define his_state_is_dont my_state_is_wont -#define his_state_is_wont my_state_is_dont -#define his_want_state_is_dont my_want_state_is_wont -#define his_want_state_is_wont my_want_state_is_dont - -#define set_his_state_do set_my_state_will -#define set_his_state_will set_my_state_do -#define set_his_want_state_do set_my_want_state_will -#define set_his_want_state_will set_my_want_state_do - -#define set_his_state_dont set_my_state_wont -#define set_his_state_wont set_my_state_dont -#define set_his_want_state_dont set_my_want_state_wont -#define set_his_want_state_wont set_my_want_state_dont - -#if defined(USE_TERMIO) -#define SIG_FUNC_RET void -#else -#define SIG_FUNC_RET int -#endif - -#ifdef SIGINFO -extern SIG_FUNC_RET - ayt_status(void); -#endif - -extern FILE - *NetTrace; /* Where debugging output goes */ -extern unsigned char - NetTraceFile[]; /* Name of file where debugging output goes */ -extern void - SetNetTrace(char *); /* Function to change where debugging goes */ - -extern jmp_buf - peerdied, - toplevel; /* For error conditions. */ - -extern void - command(int, const char *, int), - Dump(char, unsigned char *, int), - env_init(void), - Exit(int), - ExitString(const char *, int), - init_network(void), - init_sys(void), - init_telnet(void), - init_terminal(void), - intp(void), - optionstatus(void), - printoption(const char *, int, int), - printsub(char, unsigned char *, int), - quit(void), - sendabort(void), - sendbrk(void), - sendeof(void), - sendsusp(void), - sendnaws(void), - sendayt(void), - setconnmode(int), - setcommandmode(void), - set_escape_char(char *s), - setneturg(void), - sys_telnet_init(void), - telnet(char *), - tel_enter_binary(int), - tel_leave_binary(int), - TerminalFlushOutput(void), - TerminalNewMode(int), - TerminalRestoreState(void), - TerminalSaveState(void), - TerminalDefaultChars(void), - TerminalSpeeds(long *, long *), - tninit(void), - upcase(char *), - willoption(int), - wontoption(int); - -extern void - send_do(int, int), - send_dont(int, int), - send_will(int, int), - send_wont(int, int); - -extern void - lm_will(unsigned char *, int), - lm_wont(unsigned char *, int), - lm_do(unsigned char *, int), - lm_dont(unsigned char *, int), - lm_mode(unsigned char *, int, int); - -extern void - slc_init(void), - slcstate(void), - slc_mode_export(void), - slc_mode_import(int), - slc_import(int), - slc_export(void), - slc(unsigned char *, int), - slc_check(void), - slc_start_reply(void), - slc_add_reply(unsigned char, unsigned char, cc_t), - slc_end_reply(void); -extern int - getconnmode(void), - opt_welldefined(const char *), - NetClose(int), - netflush(void), - process_rings(int, int, int, int, int, int), - rlogin_susp(void), - SetSockOpt(int, int, int, int), - slc_update(void), - stilloob(void), - telrcv(void), - TerminalRead(char *, int), - TerminalWrite(char *, int), - TerminalAutoFlush(void), - TerminalWindowSize(long *, long *), - TerminalSpecialChars(int), - tn(int, char **), - ttyflush(int); - -extern void - env_opt(unsigned char *, int), - env_opt_start(void), - env_opt_start_info(void), - env_opt_add(unsigned char *), - env_opt_end(int); - -extern unsigned char - *env_default(int, int), - *env_getvalue(const unsigned char *); - -extern int - get_status(char *), - dosynch(char *); - -extern cc_t - *tcval(int); - -#ifndef USE_TERMIO - -extern struct tchars ntc; -extern struct ltchars nltc; -extern struct sgttyb nttyb; - -# define termEofChar ntc.t_eofc -# define termEraseChar nttyb.sg_erase -# define termFlushChar nltc.t_flushc -# define termIntChar ntc.t_intrc -# define termKillChar nttyb.sg_kill -# define termLiteralNextChar nltc.t_lnextc -# define termQuitChar ntc.t_quitc -# define termSuspChar nltc.t_suspc -# define termRprntChar nltc.t_rprntc -# define termWerasChar nltc.t_werasc -# define termStartChar ntc.t_startc -# define termStopChar ntc.t_stopc -# define termForw1Char ntc.t_brkc -extern cc_t termForw2Char; -extern cc_t termAytChar; - -# define termEofCharp (cc_t *)&ntc.t_eofc -# define termEraseCharp (cc_t *)&nttyb.sg_erase -# define termFlushCharp (cc_t *)&nltc.t_flushc -# define termIntCharp (cc_t *)&ntc.t_intrc -# define termKillCharp (cc_t *)&nttyb.sg_kill -# define termLiteralNextCharp (cc_t *)&nltc.t_lnextc -# define termQuitCharp (cc_t *)&ntc.t_quitc -# define termSuspCharp (cc_t *)&nltc.t_suspc -# define termRprntCharp (cc_t *)&nltc.t_rprntc -# define termWerasCharp (cc_t *)&nltc.t_werasc -# define termStartCharp (cc_t *)&ntc.t_startc -# define termStopCharp (cc_t *)&ntc.t_stopc -# define termForw1Charp (cc_t *)&ntc.t_brkc -# define termForw2Charp (cc_t *)&termForw2Char -# define termAytCharp (cc_t *)&termAytChar - -# else - -extern struct termio new_tc; - -# define termEofChar new_tc.c_cc[VEOF] -# define termEraseChar new_tc.c_cc[VERASE] -# define termIntChar new_tc.c_cc[VINTR] -# define termKillChar new_tc.c_cc[VKILL] -# define termQuitChar new_tc.c_cc[VQUIT] - -# ifndef VSUSP -extern cc_t termSuspChar; -# else -# define termSuspChar new_tc.c_cc[VSUSP] -# endif -# if defined(VFLUSHO) && !defined(VDISCARD) -# define VDISCARD VFLUSHO -# endif -# ifndef VDISCARD -extern cc_t termFlushChar; -# else -# define termFlushChar new_tc.c_cc[VDISCARD] -# endif -# ifndef VWERASE -extern cc_t termWerasChar; -# else -# define termWerasChar new_tc.c_cc[VWERASE] -# endif -# ifndef VREPRINT -extern cc_t termRprntChar; -# else -# define termRprntChar new_tc.c_cc[VREPRINT] -# endif -# ifndef VLNEXT -extern cc_t termLiteralNextChar; -# else -# define termLiteralNextChar new_tc.c_cc[VLNEXT] -# endif -# ifndef VSTART -extern cc_t termStartChar; -# else -# define termStartChar new_tc.c_cc[VSTART] -# endif -# ifndef VSTOP -extern cc_t termStopChar; -# else -# define termStopChar new_tc.c_cc[VSTOP] -# endif -# ifndef VEOL -extern cc_t termForw1Char; -# else -# define termForw1Char new_tc.c_cc[VEOL] -# endif -# ifndef VEOL2 -extern cc_t termForw2Char; -# else -# define termForw2Char new_tc.c_cc[VEOL] -# endif -# ifndef VSTATUS -extern cc_t termAytChar; -#else -# define termAytChar new_tc.c_cc[VSTATUS] -#endif - -# if defined(__STDC__) -# define termEofCharp &termEofChar -# define termEraseCharp &termEraseChar -# define termIntCharp &termIntChar -# define termKillCharp &termKillChar -# define termQuitCharp &termQuitChar -# define termSuspCharp &termSuspChar -# define termFlushCharp &termFlushChar -# define termWerasCharp &termWerasChar -# define termRprntCharp &termRprntChar -# define termLiteralNextCharp &termLiteralNextChar -# define termStartCharp &termStartChar -# define termStopCharp &termStopChar -# define termForw1Charp &termForw1Char -# define termForw2Charp &termForw2Char -# define termAytCharp &termAytChar -# else - /* Work around a compiler bug */ -# define termEofCharp 0 -# define termEraseCharp 0 -# define termIntCharp 0 -# define termKillCharp 0 -# define termQuitCharp 0 -# define termSuspCharp 0 -# define termFlushCharp 0 -# define termWerasCharp 0 -# define termRprntCharp 0 -# define termLiteralNextCharp 0 -# define termStartCharp 0 -# define termStopCharp 0 -# define termForw1Charp 0 -# define termForw2Charp 0 -# define termAytCharp 0 -# endif -#endif - - -/* Ring buffer structures which are shared */ - -extern Ring - netoring, - netiring, - ttyoring, - ttyiring; - -extern void - xmitAO(void), - xmitEC(void), - xmitEL(void); diff --git a/usr.bin/telnet/fdset.h b/usr.bin/telnet/fdset.h deleted file mode 100644 index 045bb72..0000000 --- a/usr.bin/telnet/fdset.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)fdset.h 8.1 (Berkeley) 6/6/93 - */ - -/* - * The following is defined just in case someone should want to run - * this telnet on a 4.2 system. - * - */ - -#ifndef FD_SETSIZE - -#define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n))) -#define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n))) -#define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n))) -#define FD_ZERO(p) ((p)->fds_bits[0] = 0) - -#endif diff --git a/usr.bin/telnet/general.h b/usr.bin/telnet/general.h deleted file mode 100644 index 4efa951..0000000 --- a/usr.bin/telnet/general.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)general.h 8.1 (Berkeley) 6/6/93 - */ - -/* - * Some general definitions. - */ - - -#define numberof(x) (sizeof x/sizeof x[0]) -#define highestof(x) (numberof(x)-1) - -#define ClearElement(x) memset((char *)&x, 0, sizeof x) -#define ClearArray(x) memset((char *)x, 0, sizeof x) diff --git a/usr.bin/telnet/main.c b/usr.bin/telnet/main.c deleted file mode 100644 index e007348..0000000 --- a/usr.bin/telnet/main.c +++ /dev/null @@ -1,282 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)main.c 8.3 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <sys/socket.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "ring.h" -#include "externs.h" -#include "defines.h" - - -/* These values need to be the same as defined in libtelnet/kerberos5.c */ -/* Either define them in both places, or put in some common header file. */ -#define OPTS_FORWARD_CREDS 0x00000002 -#define OPTS_FORWARDABLE_CREDS 0x00000001 - -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) -char *ipsec_policy_in = NULL; -char *ipsec_policy_out = NULL; -#endif - -int family = AF_UNSPEC; - -/* - * Initialize variables. - */ -void -tninit(void) -{ - init_terminal(); - - init_network(); - - init_telnet(); - - init_sys(); -} - -static void -usage(void) -{ - fprintf(stderr, "usage: %s %s%s%s%s\n", - prompt, - "[-4] [-6] [-8] [-E] [-L] [-N] [-S tos] [-c] [-d]", - "\n\t[-e char] [-l user] [-n tracefile] ", - "[-r] [-s src_addr] [-u] ", -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) - "[-P policy] " -#endif - "[host-name [port]]" - ); - exit(1); -} - -/* - * main. Parse arguments, invoke the protocol or command parser. - */ - -int -main(int argc, char *argv[]) -{ - int ch; - char *user; - char *src_addr = NULL; -#ifdef FORWARD - extern int forward_flags; -#endif /* FORWARD */ - - tninit(); /* Clear out things */ - - TerminalSaveState(); - - if ((prompt = strrchr(argv[0], '/'))) - ++prompt; - else - prompt = argv[0]; - - user = NULL; - - rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE; - autologin = -1; - - -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) -#define IPSECOPT "P:" -#else -#define IPSECOPT -#endif - while ((ch = getopt(argc, argv, - "468EKLNS:X:acde:fFk:l:n:rs:t:uxy" IPSECOPT)) != -1) -#undef IPSECOPT - { - switch(ch) { - case '4': - family = AF_INET; - break; -#ifdef INET6 - case '6': - family = AF_INET6; - break; -#endif - case '8': - eight = 3; /* binary output and input */ - break; - case 'E': - rlogin = escape = _POSIX_VDISABLE; - break; - case 'K': - break; - case 'L': - eight |= 2; /* binary output only */ - break; - case 'N': - doaddrlookup = 0; - break; - case 'S': - { -#ifdef HAS_GETTOS - extern int tos; - - if ((tos = parsetos(optarg, "tcp")) < 0) - fprintf(stderr, "%s%s%s%s\n", - prompt, ": Bad TOS argument '", - optarg, - "; will try to use default TOS"); -#else - fprintf(stderr, - "%s: Warning: -S ignored, no parsetos() support.\n", - prompt); -#endif - } - break; - case 'X': - break; - case 'a': - autologin = 1; - break; - case 'c': - skiprc = 1; - break; - case 'd': - telnet_debug = 1; - break; - case 'e': - set_escape_char(optarg); - break; - case 'f': - fprintf(stderr, - "%s: Warning: -f ignored, no Kerberos V5 support.\n", - prompt); - break; - case 'F': - fprintf(stderr, - "%s: Warning: -F ignored, no Kerberos V5 support.\n", - prompt); - break; - case 'k': - fprintf(stderr, - "%s: Warning: -k ignored, no Kerberos V4 support.\n", - prompt); - break; - case 'l': - autologin = 1; - user = optarg; - break; - case 'n': - SetNetTrace(optarg); - break; - case 'r': - rlogin = '~'; - break; - case 's': - src_addr = optarg; - break; - case 'u': - family = AF_UNIX; - break; - case 'x': - fprintf(stderr, - "%s: Warning: -x ignored, no ENCRYPT support.\n", - prompt); - break; - case 'y': - fprintf(stderr, - "%s: Warning: -y ignored, no ENCRYPT support.\n", - prompt); - break; -#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) - case 'P': - if (!strncmp("in", optarg, 2)) - ipsec_policy_in = strdup(optarg); - else if (!strncmp("out", optarg, 3)) - ipsec_policy_out = strdup(optarg); - else - usage(); - break; -#endif - case '?': - default: - usage(); - /* NOTREACHED */ - } - } - if (autologin == -1) - autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1; - - argc -= optind; - argv += optind; - - if (argc) { - char *args[9], **argp = args; - - if (argc > 2) - usage(); - *argp++ = prompt; - if (user) { - *argp++ = strdup("-l"); - *argp++ = user; - } - if (src_addr) { - *argp++ = strdup("-s"); - *argp++ = src_addr; - } - *argp++ = argv[0]; /* host */ - if (argc > 1) - *argp++ = argv[1]; /* port */ - *argp = 0; - - if (setjmp(toplevel) != 0) - Exit(0); - if (tn(argp - args, args) == 1) - return (0); - else - return (1); - } - (void)setjmp(toplevel); - for (;;) { - command(1, 0, 0); - } - return 0; -} diff --git a/usr.bin/telnet/network.c b/usr.bin/telnet/network.c deleted file mode 100644 index cdcd419..0000000 --- a/usr.bin/telnet/network.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)network.c 8.2 (Berkeley) 12/15/93"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/time.h> - -#include <errno.h> -#include <stdlib.h> - -#include <arpa/telnet.h> -#include <unistd.h> - -#include "ring.h" - -#include "defines.h" -#include "externs.h" -#include "fdset.h" - -Ring netoring, netiring; -unsigned char netobuf[2*BUFSIZ], netibuf[BUFSIZ]; - -/* - * Initialize internal network data structures. - */ - -void -init_network(void) -{ - if (ring_init(&netoring, netobuf, sizeof netobuf) != 1) { - exit(1); - } - if (ring_init(&netiring, netibuf, sizeof netibuf) != 1) { - exit(1); - } - NetTrace = stdout; -} - - -/* - * Check to see if any out-of-band data exists on a socket (for - * Telnet "synch" processing). - */ - -int -stilloob(void) -{ - static struct timeval timeout = { 0, 0 }; - fd_set excepts; - int value; - - do { - FD_ZERO(&excepts); - FD_SET(net, &excepts); - value = select(net+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout); - } while ((value == -1) && (errno == EINTR)); - - if (value < 0) { - perror("select"); - (void) quit(); - /* NOTREACHED */ - } - if (FD_ISSET(net, &excepts)) { - return 1; - } else { - return 0; - } -} - - -/* - * setneturg() - * - * Sets "neturg" to the current location. - */ - -void -setneturg(void) -{ - ring_mark(&netoring); -} - - -/* - * netflush - * Send as much data as possible to the network, - * handling requests for urgent data. - * - * The return value indicates whether we did any - * useful work. - */ - -int -netflush(void) -{ - int n, n1; - - if ((n1 = n = ring_full_consecutive(&netoring)) > 0) { - if (!ring_at_mark(&netoring)) { - n = send(net, (char *)netoring.consume, n, 0); /* normal write */ - } else { - /* - * In 4.2 (and 4.3) systems, there is some question about - * what byte in a sendOOB operation is the "OOB" data. - * To make ourselves compatible, we only send ONE byte - * out of band, the one WE THINK should be OOB (though - * we really have more the TCP philosophy of urgent data - * rather than the Unix philosophy of OOB data). - */ - n = send(net, (char *)netoring.consume, 1, MSG_OOB);/* URGENT data */ - } - } - if (n < 0) { - if (errno != ENOBUFS && errno != EWOULDBLOCK) { - setcommandmode(); - perror(hostname); - (void)NetClose(net); - ring_clear_mark(&netoring); - longjmp(peerdied, -1); - /*NOTREACHED*/ - } - n = 0; - } - if (netdata && n) { - Dump('>', netoring.consume, n); - } - if (n) { - ring_consumed(&netoring, n); - /* - * If we sent all, and more to send, then recurse to pick - * up the other half. - */ - if ((n1 == n) && ring_full_consecutive(&netoring)) { - (void) netflush(); - } - return 1; - } else { - return 0; - } -} diff --git a/usr.bin/telnet/ring.c b/usr.bin/telnet/ring.c deleted file mode 100644 index b6e2bea..0000000 --- a/usr.bin/telnet/ring.c +++ /dev/null @@ -1,277 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)ring.c 8.2 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * This defines a structure for a ring buffer. - * - * The circular buffer has two parts: - *((( - * full: [consume, supply) - * empty: [supply, consume) - *]]] - * - */ - -#include <errno.h> -#include <stdio.h> -#include <string.h> - -#ifdef size_t -#undef size_t -#endif - -#include <sys/types.h> -#ifndef FILIO_H -#include <sys/ioctl.h> -#endif -#include <sys/socket.h> - -#include "ring.h" -#include "general.h" - -/* Internal macros */ - -#if !defined(MIN) -#define MIN(a,b) (((a)<(b))? (a):(b)) -#endif /* !defined(MIN) */ - -#define ring_subtract(d,a,b) (((a)-(b) >= 0)? \ - (a)-(b): (((a)-(b))+(d)->size)) - -#define ring_increment(d,a,c) (((a)+(c) < (d)->top)? \ - (a)+(c) : (((a)+(c))-(d)->size)) - -#define ring_decrement(d,a,c) (((a)-(c) >= (d)->bottom)? \ - (a)-(c) : (((a)-(c))-(d)->size)) - - -/* - * The following is a clock, used to determine full, empty, etc. - * - * There is some trickiness here. Since the ring buffers are initialized - * to ZERO on allocation, we need to make sure, when interpreting the - * clock, that when the times are EQUAL, then the buffer is FULL. - */ -static u_long ring_clock = 0; - - -#define ring_empty(d) (((d)->consume == (d)->supply) && \ - ((d)->consumetime >= (d)->supplytime)) -#define ring_full(d) (((d)->supply == (d)->consume) && \ - ((d)->supplytime > (d)->consumetime)) - -/* Buffer state transition routines */ - -int -ring_init(Ring *ring, unsigned char *buffer, int count) -{ - memset((char *)ring, 0, sizeof *ring); - - ring->size = count; - - ring->supply = ring->consume = ring->bottom = buffer; - - ring->top = ring->bottom+ring->size; - - - return 1; -} - -/* Mark routines */ - -/* - * Mark the most recently supplied byte. - */ - -void -ring_mark(Ring *ring) -{ - ring->mark = ring_decrement(ring, ring->supply, 1); -} - -/* - * Is the ring pointing to the mark? - */ - -int -ring_at_mark(Ring *ring) -{ - if (ring->mark == ring->consume) { - return 1; - } else { - return 0; - } -} - -/* - * Clear any mark set on the ring. - */ - -void -ring_clear_mark(Ring *ring) -{ - ring->mark = 0; -} - -/* - * Add characters from current segment to ring buffer. - */ -void -ring_supplied(Ring *ring, int count) -{ - ring->supply = ring_increment(ring, ring->supply, count); - ring->supplytime = ++ring_clock; -} - -/* - * We have just consumed "c" bytes. - */ -void -ring_consumed(Ring *ring, int count) -{ - if (count == 0) /* don't update anything */ - return; - - if (ring->mark && - (ring_subtract(ring, ring->mark, ring->consume) < count)) { - ring->mark = 0; - } - ring->consume = ring_increment(ring, ring->consume, count); - ring->consumetime = ++ring_clock; - /* - * Try to encourage "ring_empty_consecutive()" to be large. - */ - if (ring_empty(ring)) { - ring->consume = ring->supply = ring->bottom; - } -} - - - -/* Buffer state query routines */ - - -/* Number of bytes that may be supplied */ -int -ring_empty_count(Ring *ring) -{ - if (ring_empty(ring)) { /* if empty */ - return ring->size; - } else { - return ring_subtract(ring, ring->consume, ring->supply); - } -} - -/* number of CONSECUTIVE bytes that may be supplied */ -int -ring_empty_consecutive(Ring *ring) -{ - if ((ring->consume < ring->supply) || ring_empty(ring)) { - /* - * if consume is "below" supply, or empty, then - * return distance to the top - */ - return ring_subtract(ring, ring->top, ring->supply); - } else { - /* - * else, return what we may. - */ - return ring_subtract(ring, ring->consume, ring->supply); - } -} - -/* Return the number of bytes that are available for consuming - * (but don't give more than enough to get to cross over set mark) - */ - -int -ring_full_count(Ring *ring) -{ - if ((ring->mark == 0) || (ring->mark == ring->consume)) { - if (ring_full(ring)) { - return ring->size; /* nothing consumed, but full */ - } else { - return ring_subtract(ring, ring->supply, ring->consume); - } - } else { - return ring_subtract(ring, ring->mark, ring->consume); - } -} - -/* - * Return the number of CONSECUTIVE bytes available for consuming. - * However, don't return more than enough to cross over set mark. - */ -int -ring_full_consecutive(Ring *ring) -{ - if ((ring->mark == 0) || (ring->mark == ring->consume)) { - if ((ring->supply < ring->consume) || ring_full(ring)) { - return ring_subtract(ring, ring->top, ring->consume); - } else { - return ring_subtract(ring, ring->supply, ring->consume); - } - } else { - if (ring->mark < ring->consume) { - return ring_subtract(ring, ring->top, ring->consume); - } else { /* Else, distance to mark */ - return ring_subtract(ring, ring->mark, ring->consume); - } - } -} - -/* - * Move data into the "supply" portion of of the ring buffer. - */ -void -ring_supply_data(Ring *ring, unsigned char *buffer, int count) -{ - int i; - - while (count) { - i = MIN(count, ring_empty_consecutive(ring)); - memcpy(ring->supply, buffer, i); - ring_supplied(ring, i); - count -= i; - buffer += i; - } -} - diff --git a/usr.bin/telnet/ring.h b/usr.bin/telnet/ring.h deleted file mode 100644 index 1d8f54c..0000000 --- a/usr.bin/telnet/ring.h +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)ring.h 8.1 (Berkeley) 6/6/93 - * $FreeBSD$ - */ - -#if defined(P) -# undef P -#endif - -#if defined(__STDC__) || defined(LINT_ARGS) -# define P(x) x -#else -# define P(x) () -#endif - -/* - * This defines a structure for a ring buffer. - * - * The circular buffer has two parts: - *((( - * full: [consume, supply) - * empty: [supply, consume) - *]]] - * - */ -typedef struct { - unsigned char *consume, /* where data comes out of */ - *supply, /* where data comes in to */ - *bottom, /* lowest address in buffer */ - *top, /* highest address+1 in buffer */ - *mark; /* marker (user defined) */ - int size; /* size in bytes of buffer */ - u_long consumetime, /* help us keep straight full, empty, etc. */ - supplytime; -} Ring; - -/* Here are some functions and macros to deal with the ring buffer */ - -/* Initialization routine */ -extern int - ring_init(Ring *ring, unsigned char *buffer, int count); - -/* Data movement routines */ -extern void - ring_supply_data(Ring *ring, unsigned char *buffer, int count); -#ifdef notdef -extern void - ring_consume_data(Ring *ring, unsigned char *buffer, int count); -#endif - -/* Buffer state transition routines */ -extern void - ring_supplied(Ring *ring, int count), - ring_consumed(Ring *ring, int count); - -/* Buffer state query routines */ -extern int - ring_at_mark(Ring *), - ring_empty_count(Ring *ring), - ring_empty_consecutive(Ring *ring), - ring_full_count(Ring *ring), - ring_full_consecutive(Ring *ring); - - -extern void - ring_clear_mark(Ring *), - ring_mark(Ring *); diff --git a/usr.bin/telnet/sys_bsd.c b/usr.bin/telnet/sys_bsd.c deleted file mode 100644 index 45ef1e2..0000000 --- a/usr.bin/telnet/sys_bsd.c +++ /dev/null @@ -1,1145 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)sys_bsd.c 8.4 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * The following routines try to encapsulate what is system dependent - * (at least between 4.x and dos) which is used in telnet.c. - */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <signal.h> -#include <stdlib.h> -#include <unistd.h> -#include <arpa/telnet.h> - -#include "ring.h" -#include "fdset.h" -#include "defines.h" -#include "externs.h" -#include "types.h" - -int - tout, /* Output file descriptor */ - tin, /* Input file descriptor */ - net; - -#ifndef USE_TERMIO -struct tchars otc = { 0 }, ntc = { 0 }; -struct ltchars oltc = { 0 }, nltc = { 0 }; -struct sgttyb ottyb = { 0 }, nttyb = { 0 }; -int olmode = 0; -# define cfgetispeed(ptr) (ptr)->sg_ispeed -# define cfgetospeed(ptr) (ptr)->sg_ospeed -# define old_tc ottyb - -#else /* USE_TERMIO */ -struct termio old_tc = { 0, 0, 0, 0, {}, 0, 0 }; - -# ifndef TCSANOW -# ifdef TCSETS -# define TCSANOW TCSETS -# define TCSADRAIN TCSETSW -# define tcgetattr(f, t) ioctl(f, TCGETS, (char *)t) -# else -# ifdef TCSETA -# define TCSANOW TCSETA -# define TCSADRAIN TCSETAW -# define tcgetattr(f, t) ioctl(f, TCGETA, (char *)t) -# else -# define TCSANOW TIOCSETA -# define TCSADRAIN TIOCSETAW -# define tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t) -# endif -# endif -# define tcsetattr(f, a, t) ioctl(f, a, (char *)t) -# define cfgetospeed(ptr) ((ptr)->c_cflag&CBAUD) -# ifdef CIBAUD -# define cfgetispeed(ptr) (((ptr)->c_cflag&CIBAUD) >> IBSHIFT) -# else -# define cfgetispeed(ptr) cfgetospeed(ptr) -# endif -# endif /* TCSANOW */ -# ifdef sysV88 -# define TIOCFLUSH TC_PX_DRAIN -# endif -#endif /* USE_TERMIO */ - -static fd_set *ibitsp, *obitsp, *xbitsp; -int fdsn; - -#ifdef SIGINT -static SIG_FUNC_RET intr(int); -#endif /* SIGINT */ -#ifdef SIGQUIT -static SIG_FUNC_RET intr2(int); -#endif /* SIGQUIT */ -#ifdef SIGTSTP -static SIG_FUNC_RET susp(int); -#endif /* SIGTSTP */ -#ifdef SIGINFO -static SIG_FUNC_RET ayt(int); -#endif - -void -init_sys(void) -{ - tout = fileno(stdout); - tin = fileno(stdin); - errno = 0; -} - -int -TerminalWrite(char *buf, int n) -{ - return write(tout, buf, n); -} - -int -TerminalRead(char *buf, int n) -{ - return read(tin, buf, n); -} - -/* - * - */ - -int -TerminalAutoFlush(void) -{ -#if defined(LNOFLSH) - int flush; - - ioctl(0, TIOCLGET, (char *)&flush); - return !(flush&LNOFLSH); /* if LNOFLSH, no autoflush */ -#else /* LNOFLSH */ - return 1; -#endif /* LNOFLSH */ -} - -#ifdef KLUDGELINEMODE -extern int kludgelinemode; -#endif -/* - * TerminalSpecialChars() - * - * Look at an input character to see if it is a special character - * and decide what to do. - * - * Output: - * - * 0 Don't add this character. - * 1 Do add this character - */ - -int -TerminalSpecialChars(int c) -{ - if (c == termIntChar) { - intp(); - return 0; - } else if (c == termQuitChar) { -#ifdef KLUDGELINEMODE - if (kludgelinemode) - sendbrk(); - else -#endif - sendabort(); - return 0; - } else if (c == termEofChar) { - if (my_want_state_is_will(TELOPT_LINEMODE)) { - sendeof(); - return 0; - } - return 1; - } else if (c == termSuspChar) { - sendsusp(); - return(0); - } else if (c == termFlushChar) { - xmitAO(); /* Transmit Abort Output */ - return 0; - } else if (!MODE_LOCAL_CHARS(globalmode)) { - if (c == termKillChar) { - xmitEL(); - return 0; - } else if (c == termEraseChar) { - xmitEC(); /* Transmit Erase Character */ - return 0; - } - } - return 1; -} - - -/* - * Flush output to the terminal - */ - -void -TerminalFlushOutput(void) -{ -#ifdef TIOCFLUSH - (void) ioctl(fileno(stdout), TIOCFLUSH, (char *) 0); -#else - (void) ioctl(fileno(stdout), TCFLSH, (char *) 0); -#endif -} - -void -TerminalSaveState(void) -{ -#ifndef USE_TERMIO - ioctl(0, TIOCGETP, (char *)&ottyb); - ioctl(0, TIOCGETC, (char *)&otc); - ioctl(0, TIOCGLTC, (char *)&oltc); - ioctl(0, TIOCLGET, (char *)&olmode); - - ntc = otc; - nltc = oltc; - nttyb = ottyb; - -#else /* USE_TERMIO */ - tcgetattr(0, &old_tc); - - new_tc = old_tc; - -#ifndef VDISCARD - termFlushChar = CONTROL('O'); -#endif -#ifndef VWERASE - termWerasChar = CONTROL('W'); -#endif -#ifndef VREPRINT - termRprntChar = CONTROL('R'); -#endif -#ifndef VLNEXT - termLiteralNextChar = CONTROL('V'); -#endif -#ifndef VSTART - termStartChar = CONTROL('Q'); -#endif -#ifndef VSTOP - termStopChar = CONTROL('S'); -#endif -#ifndef VSTATUS - termAytChar = CONTROL('T'); -#endif -#endif /* USE_TERMIO */ -} - -cc_t * -tcval(int func) -{ - switch(func) { - case SLC_IP: return(&termIntChar); - case SLC_ABORT: return(&termQuitChar); - case SLC_EOF: return(&termEofChar); - case SLC_EC: return(&termEraseChar); - case SLC_EL: return(&termKillChar); - case SLC_XON: return(&termStartChar); - case SLC_XOFF: return(&termStopChar); - case SLC_FORW1: return(&termForw1Char); -#ifdef USE_TERMIO - case SLC_FORW2: return(&termForw2Char); -# ifdef VDISCARD - case SLC_AO: return(&termFlushChar); -# endif -# ifdef VSUSP - case SLC_SUSP: return(&termSuspChar); -# endif -# ifdef VWERASE - case SLC_EW: return(&termWerasChar); -# endif -# ifdef VREPRINT - case SLC_RP: return(&termRprntChar); -# endif -# ifdef VLNEXT - case SLC_LNEXT: return(&termLiteralNextChar); -# endif -# ifdef VSTATUS - case SLC_AYT: return(&termAytChar); -# endif -#endif - - case SLC_SYNCH: - case SLC_BRK: - case SLC_EOR: - default: - return((cc_t *)0); - } -} - -void -TerminalDefaultChars(void) -{ -#ifndef USE_TERMIO - ntc = otc; - nltc = oltc; - nttyb.sg_kill = ottyb.sg_kill; - nttyb.sg_erase = ottyb.sg_erase; -#else /* USE_TERMIO */ - memcpy(new_tc.c_cc, old_tc.c_cc, sizeof(old_tc.c_cc)); -# ifndef VDISCARD - termFlushChar = CONTROL('O'); -# endif -# ifndef VWERASE - termWerasChar = CONTROL('W'); -# endif -# ifndef VREPRINT - termRprntChar = CONTROL('R'); -# endif -# ifndef VLNEXT - termLiteralNextChar = CONTROL('V'); -# endif -# ifndef VSTART - termStartChar = CONTROL('Q'); -# endif -# ifndef VSTOP - termStopChar = CONTROL('S'); -# endif -# ifndef VSTATUS - termAytChar = CONTROL('T'); -# endif -#endif /* USE_TERMIO */ -} - -/* - * TerminalNewMode - set up terminal to a specific mode. - * MODE_ECHO: do local terminal echo - * MODE_FLOW: do local flow control - * MODE_TRAPSIG: do local mapping to TELNET IAC sequences - * MODE_EDIT: do local line editing - * - * Command mode: - * MODE_ECHO|MODE_EDIT|MODE_FLOW|MODE_TRAPSIG - * local echo - * local editing - * local xon/xoff - * local signal mapping - * - * Linemode: - * local/no editing - * Both Linemode and Single Character mode: - * local/remote echo - * local/no xon/xoff - * local/no signal mapping - */ - -void -TerminalNewMode(int f) -{ - static int prevmode = 0; -#ifndef USE_TERMIO - struct tchars tc; - struct ltchars ltc; - struct sgttyb sb; - int lmode; -#else /* USE_TERMIO */ - struct termio tmp_tc; -#endif /* USE_TERMIO */ - int onoff; - int old; - cc_t esc; - - globalmode = f&~MODE_FORCE; - if (prevmode == f) - return; - - /* - * Write any outstanding data before switching modes - * ttyflush() returns 0 only when there is no more data - * left to write out, it returns -1 if it couldn't do - * anything at all, otherwise it returns 1 + the number - * of characters left to write. -#ifndef USE_TERMIO - * We would really like ask the kernel to wait for the output - * to drain, like we can do with the TCSADRAIN, but we don't have - * that option. The only ioctl that waits for the output to - * drain, TIOCSETP, also flushes the input queue, which is NOT - * what we want (TIOCSETP is like TCSADFLUSH). -#endif - */ - old = ttyflush(SYNCHing|flushout); - if (old < 0 || old > 1) { -#ifdef USE_TERMIO - tcgetattr(tin, &tmp_tc); -#endif /* USE_TERMIO */ - do { - /* - * Wait for data to drain, then flush again. - */ -#ifdef USE_TERMIO - tcsetattr(tin, TCSADRAIN, &tmp_tc); -#endif /* USE_TERMIO */ - old = ttyflush(SYNCHing|flushout); - } while (old < 0 || old > 1); - } - - old = prevmode; - prevmode = f&~MODE_FORCE; -#ifndef USE_TERMIO - sb = nttyb; - tc = ntc; - ltc = nltc; - lmode = olmode; -#else - tmp_tc = new_tc; -#endif - - if (f&MODE_ECHO) { -#ifndef USE_TERMIO - sb.sg_flags |= ECHO; -#else - tmp_tc.c_lflag |= ECHO; - tmp_tc.c_oflag |= ONLCR; - if (crlf) - tmp_tc.c_iflag |= ICRNL; -#endif - } else { -#ifndef USE_TERMIO - sb.sg_flags &= ~ECHO; -#else - tmp_tc.c_lflag &= ~ECHO; - tmp_tc.c_oflag &= ~ONLCR; -#endif - } - - if ((f&MODE_FLOW) == 0) { -#ifndef USE_TERMIO - tc.t_startc = _POSIX_VDISABLE; - tc.t_stopc = _POSIX_VDISABLE; -#else - tmp_tc.c_iflag &= ~(IXOFF|IXON); /* Leave the IXANY bit alone */ - } else { - if (restartany < 0) { - tmp_tc.c_iflag |= IXOFF|IXON; /* Leave the IXANY bit alone */ - } else if (restartany > 0) { - tmp_tc.c_iflag |= IXOFF|IXON|IXANY; - } else { - tmp_tc.c_iflag |= IXOFF|IXON; - tmp_tc.c_iflag &= ~IXANY; - } -#endif - } - - if ((f&MODE_TRAPSIG) == 0) { -#ifndef USE_TERMIO - tc.t_intrc = _POSIX_VDISABLE; - tc.t_quitc = _POSIX_VDISABLE; - tc.t_eofc = _POSIX_VDISABLE; - ltc.t_suspc = _POSIX_VDISABLE; - ltc.t_dsuspc = _POSIX_VDISABLE; -#else - tmp_tc.c_lflag &= ~ISIG; -#endif - localchars = 0; - } else { -#ifdef USE_TERMIO - tmp_tc.c_lflag |= ISIG; -#endif - localchars = 1; - } - - if (f&MODE_EDIT) { -#ifndef USE_TERMIO - sb.sg_flags &= ~CBREAK; - sb.sg_flags |= CRMOD; -#else - tmp_tc.c_lflag |= ICANON; -#endif - } else { -#ifndef USE_TERMIO - sb.sg_flags |= CBREAK; - if (f&MODE_ECHO) - sb.sg_flags |= CRMOD; - else - sb.sg_flags &= ~CRMOD; -#else - tmp_tc.c_lflag &= ~ICANON; - tmp_tc.c_iflag &= ~ICRNL; - tmp_tc.c_cc[VMIN] = 1; - tmp_tc.c_cc[VTIME] = 0; -#endif - } - - if ((f&(MODE_EDIT|MODE_TRAPSIG)) == 0) { -#ifndef USE_TERMIO - ltc.t_lnextc = _POSIX_VDISABLE; -#else -# ifdef VLNEXT - tmp_tc.c_cc[VLNEXT] = (cc_t)(_POSIX_VDISABLE); -# endif -#endif - } - - if (f&MODE_SOFT_TAB) { -#ifndef USE_TERMIO - sb.sg_flags |= XTABS; -#else -# ifdef OXTABS - tmp_tc.c_oflag |= OXTABS; -# endif -# ifdef TABDLY - tmp_tc.c_oflag &= ~TABDLY; - tmp_tc.c_oflag |= TAB3; -# endif -#endif - } else { -#ifndef USE_TERMIO - sb.sg_flags &= ~XTABS; -#else -# ifdef OXTABS - tmp_tc.c_oflag &= ~OXTABS; -# endif -# ifdef TABDLY - tmp_tc.c_oflag &= ~TABDLY; -# endif -#endif - } - - if (f&MODE_LIT_ECHO) { -#ifndef USE_TERMIO - lmode &= ~LCTLECH; -#else -# ifdef ECHOCTL - tmp_tc.c_lflag &= ~ECHOCTL; -# endif -#endif - } else { -#ifndef USE_TERMIO - lmode |= LCTLECH; -#else -# ifdef ECHOCTL - tmp_tc.c_lflag |= ECHOCTL; -# endif -#endif - } - - if (f == -1) { - onoff = 0; - } else { -#ifndef USE_TERMIO - if (f & MODE_OUTBIN) - lmode |= LLITOUT; - else - lmode &= ~LLITOUT; - - if (f & MODE_INBIN) - lmode |= LPASS8; - else - lmode &= ~LPASS8; -#else - if (f & MODE_INBIN) - tmp_tc.c_iflag &= ~ISTRIP; - else - tmp_tc.c_iflag |= ISTRIP; - if (f & MODE_OUTBIN) { - tmp_tc.c_cflag &= ~(CSIZE|PARENB); - tmp_tc.c_cflag |= CS8; - tmp_tc.c_oflag &= ~OPOST; - } else { - tmp_tc.c_cflag &= ~(CSIZE|PARENB); - tmp_tc.c_cflag |= old_tc.c_cflag & (CSIZE|PARENB); - tmp_tc.c_oflag |= OPOST; - } -#endif - onoff = 1; - } - - if (f != -1) { -#ifdef SIGINT - (void) signal(SIGINT, intr); -#endif -#ifdef SIGQUIT - (void) signal(SIGQUIT, intr2); -#endif -#ifdef SIGTSTP - (void) signal(SIGTSTP, susp); -#endif /* SIGTSTP */ -#ifdef SIGINFO - (void) signal(SIGINFO, ayt); -#endif -#if defined(USE_TERMIO) && defined(NOKERNINFO) - tmp_tc.c_lflag |= NOKERNINFO; -#endif - /* - * We don't want to process ^Y here. It's just another - * character that we'll pass on to the back end. It has - * to process it because it will be processed when the - * user attempts to read it, not when we send it. - */ -#ifndef USE_TERMIO - ltc.t_dsuspc = _POSIX_VDISABLE; -#else -# ifdef VDSUSP - tmp_tc.c_cc[VDSUSP] = (cc_t)(_POSIX_VDISABLE); -# endif -#endif -#ifdef USE_TERMIO - /* - * If the VEOL character is already set, then use VEOL2, - * otherwise use VEOL. - */ - esc = (rlogin != _POSIX_VDISABLE) ? rlogin : escape; - if ((tmp_tc.c_cc[VEOL] != esc) -# ifdef VEOL2 - && (tmp_tc.c_cc[VEOL2] != esc) -# endif - ) { - if (tmp_tc.c_cc[VEOL] == (cc_t)(_POSIX_VDISABLE)) - tmp_tc.c_cc[VEOL] = esc; -# ifdef VEOL2 - else if (tmp_tc.c_cc[VEOL2] == (cc_t)(_POSIX_VDISABLE)) - tmp_tc.c_cc[VEOL2] = esc; -# endif - } -#else - if (tc.t_brkc == (cc_t)(_POSIX_VDISABLE)) - tc.t_brkc = esc; -#endif - } else { -#ifdef SIGINFO - (void) signal(SIGINFO, (void (*)(int))ayt_status); -#endif -#ifdef SIGINT - (void) signal(SIGINT, SIG_DFL); -#endif -#ifdef SIGQUIT - (void) signal(SIGQUIT, SIG_DFL); -#endif -#ifdef SIGTSTP - (void) signal(SIGTSTP, SIG_DFL); -# ifndef SOLARIS - (void) sigsetmask(sigblock(0) & ~(1<<(SIGTSTP-1))); -# else /* SOLARIS */ - (void) sigrelse(SIGTSTP); -# endif /* SOLARIS */ -#endif /* SIGTSTP */ -#ifndef USE_TERMIO - ltc = oltc; - tc = otc; - sb = ottyb; - lmode = olmode; -#else - tmp_tc = old_tc; -#endif - } -#ifndef USE_TERMIO - ioctl(tin, TIOCLSET, (char *)&lmode); - ioctl(tin, TIOCSLTC, (char *)<c); - ioctl(tin, TIOCSETC, (char *)&tc); - ioctl(tin, TIOCSETN, (char *)&sb); -#else - if (tcsetattr(tin, TCSADRAIN, &tmp_tc) < 0) - tcsetattr(tin, TCSANOW, &tmp_tc); -#endif - - ioctl(tin, FIONBIO, (char *)&onoff); - ioctl(tout, FIONBIO, (char *)&onoff); - -} - -/* - * Try to guess whether speeds are "encoded" (4.2BSD) or just numeric (4.4BSD). - */ -#if B4800 != 4800 -#define DECODE_BAUD -#endif - -#ifdef DECODE_BAUD -#ifndef B7200 -#define B7200 B4800 -#endif - -#ifndef B14400 -#define B14400 B9600 -#endif - -#ifndef B19200 -# define B19200 B14400 -#endif - -#ifndef B28800 -#define B28800 B19200 -#endif - -#ifndef B38400 -# define B38400 B28800 -#endif - -#ifndef B57600 -#define B57600 B38400 -#endif - -#ifndef B76800 -#define B76800 B57600 -#endif - -#ifndef B115200 -#define B115200 B76800 -#endif - -#ifndef B230400 -#define B230400 B115200 -#endif - - -/* - * This code assumes that the values B0, B50, B75... - * are in ascending order. They do not have to be - * contiguous. - */ -struct termspeeds { - long speed; - long value; -} termspeeds[] = { - { 0, B0 }, { 50, B50 }, { 75, B75 }, - { 110, B110 }, { 134, B134 }, { 150, B150 }, - { 200, B200 }, { 300, B300 }, { 600, B600 }, - { 1200, B1200 }, { 1800, B1800 }, { 2400, B2400 }, - { 4800, B4800 }, { 7200, B7200 }, { 9600, B9600 }, - { 14400, B14400 }, { 19200, B19200 }, { 28800, B28800 }, - { 38400, B38400 }, { 57600, B57600 }, { 115200, B115200 }, - { 230400, B230400 }, { -1, B230400 } -}; -#endif /* DECODE_BAUD */ - -void -TerminalSpeeds(long *ispeed, long *ospeed) -{ -#ifdef DECODE_BAUD - struct termspeeds *tp; -#endif /* DECODE_BAUD */ - long in, out; - - out = cfgetospeed(&old_tc); - in = cfgetispeed(&old_tc); - if (in == 0) - in = out; - -#ifdef DECODE_BAUD - tp = termspeeds; - while ((tp->speed != -1) && (tp->value < in)) - tp++; - *ispeed = tp->speed; - - tp = termspeeds; - while ((tp->speed != -1) && (tp->value < out)) - tp++; - *ospeed = tp->speed; -#else /* DECODE_BAUD */ - *ispeed = in; - *ospeed = out; -#endif /* DECODE_BAUD */ -} - -int -TerminalWindowSize(long *rows, long *cols) -{ -#ifdef TIOCGWINSZ - struct winsize ws; - - if (ioctl(fileno(stdin), TIOCGWINSZ, (char *)&ws) >= 0) { - *rows = ws.ws_row; - *cols = ws.ws_col; - return 1; - } -#endif /* TIOCGWINSZ */ - return 0; -} - -int -NetClose(int fd) -{ - return close(fd); -} - -static void -NetNonblockingIO(int fd, int onoff) -{ - ioctl(fd, FIONBIO, (char *)&onoff); -} - - -/* - * Various signal handling routines. - */ - -/* ARGSUSED */ -static SIG_FUNC_RET -deadpeer(int sig __unused) -{ - setcommandmode(); - longjmp(peerdied, -1); -} - -/* ARGSUSED */ -SIG_FUNC_RET -intr(int sig __unused) -{ - if (localchars) { - intp(); - return; - } - setcommandmode(); - longjmp(toplevel, -1); -} - -/* ARGSUSED */ -SIG_FUNC_RET -intr2(int sig __unused) -{ - if (localchars) { -#ifdef KLUDGELINEMODE - if (kludgelinemode) - sendbrk(); - else -#endif - sendabort(); - return; - } -} - -#ifdef SIGTSTP -/* ARGSUSED */ -SIG_FUNC_RET -susp(int sig __unused) -{ - if ((rlogin != _POSIX_VDISABLE) && rlogin_susp()) - return; - if (localchars) - sendsusp(); -} -#endif - -#ifdef SIGWINCH -/* ARGSUSED */ -static SIG_FUNC_RET -sendwin(int sig __unused) -{ - if (connected) { - sendnaws(); - } -} -#endif - -#ifdef SIGINFO -/* ARGSUSED */ -SIG_FUNC_RET -ayt(int sig __unused) -{ - if (connected) - sendayt(); - else - ayt_status(); -} -#endif - - -void -sys_telnet_init(void) -{ - (void) signal(SIGINT, intr); - (void) signal(SIGQUIT, intr2); - (void) signal(SIGPIPE, deadpeer); -#ifdef SIGWINCH - (void) signal(SIGWINCH, sendwin); -#endif -#ifdef SIGTSTP - (void) signal(SIGTSTP, susp); -#endif -#ifdef SIGINFO - (void) signal(SIGINFO, ayt); -#endif - - setconnmode(0); - - NetNonblockingIO(net, 1); - -#if defined(SO_OOBINLINE) - if (SetSockOpt(net, SOL_SOCKET, SO_OOBINLINE, 1) == -1) { - perror("SetSockOpt"); - } -#endif /* defined(SO_OOBINLINE) */ -} - -/* - * Process rings - - * - * This routine tries to fill up/empty our various rings. - * - * The parameter specifies whether this is a poll operation, - * or a block-until-something-happens operation. - * - * The return value is 1 if something happened, 0 if not. - */ - -int -process_rings(int netin, int netout, int netex, int ttyin, int ttyout, int poll) -{ - int c; - int returnValue = 0; - static struct timeval TimeValue = { 0, 0 }; - int maxfd = -1; - int tmp; - - if ((netout || netin || netex) && net > maxfd) - maxfd = net; - - if (ttyout && tout > maxfd) - maxfd = tout; - if (ttyin && tin > maxfd) - maxfd = tin; - tmp = howmany(maxfd+1, NFDBITS) * sizeof(fd_mask); - if (tmp > fdsn) { - if (ibitsp) - free(ibitsp); - if (obitsp) - free(obitsp); - if (xbitsp) - free(xbitsp); - - fdsn = tmp; - if ((ibitsp = (fd_set *)malloc(fdsn)) == NULL) - err(1, "malloc"); - if ((obitsp = (fd_set *)malloc(fdsn)) == NULL) - err(1, "malloc"); - if ((xbitsp = (fd_set *)malloc(fdsn)) == NULL) - err(1, "malloc"); - memset(ibitsp, 0, fdsn); - memset(obitsp, 0, fdsn); - memset(xbitsp, 0, fdsn); - } - - if (netout) - FD_SET(net, obitsp); - if (ttyout) - FD_SET(tout, obitsp); - if (ttyin) - FD_SET(tin, ibitsp); - if (netin) - FD_SET(net, ibitsp); - if (netex) - FD_SET(net, xbitsp); - if ((c = select(maxfd + 1, ibitsp, obitsp, xbitsp, - (poll == 0)? (struct timeval *)0 : &TimeValue)) < 0) { - if (c == -1) { - /* - * we can get EINTR if we are in line mode, - * and the user does an escape (TSTP), or - * some other signal generator. - */ - if (errno == EINTR) { - return 0; - } - /* I don't like this, does it ever happen? */ - printf("sleep(5) from telnet, after select: %s\r\n", strerror(errno)); - sleep(5); - } - return 0; - } - - /* - * Any urgent data? - */ - if (FD_ISSET(net, xbitsp)) { - FD_CLR(net, xbitsp); - SYNCHing = 1; - (void) ttyflush(1); /* flush already enqueued data */ - } - - /* - * Something to read from the network... - */ - if (FD_ISSET(net, ibitsp)) { - int canread; - - FD_CLR(net, ibitsp); - canread = ring_empty_consecutive(&netiring); -#if !defined(SO_OOBINLINE) - /* - * In 4.2 (and some early 4.3) systems, the - * OOB indication and data handling in the kernel - * is such that if two separate TCP Urgent requests - * come in, one byte of TCP data will be overlaid. - * This is fatal for Telnet, but we try to live - * with it. - * - * In addition, in 4.2 (and...), a special protocol - * is needed to pick up the TCP Urgent data in - * the correct sequence. - * - * What we do is: if we think we are in urgent - * mode, we look to see if we are "at the mark". - * If we are, we do an OOB receive. If we run - * this twice, we will do the OOB receive twice, - * but the second will fail, since the second - * time we were "at the mark", but there wasn't - * any data there (the kernel doesn't reset - * "at the mark" until we do a normal read). - * Once we've read the OOB data, we go ahead - * and do normal reads. - * - * There is also another problem, which is that - * since the OOB byte we read doesn't put us - * out of OOB state, and since that byte is most - * likely the TELNET DM (data mark), we would - * stay in the TELNET SYNCH (SYNCHing) state. - * So, clocks to the rescue. If we've "just" - * received a DM, then we test for the - * presence of OOB data when the receive OOB - * fails (and AFTER we did the normal mode read - * to clear "at the mark"). - */ - if (SYNCHing) { - int atmark; - static int bogus_oob = 0, first = 1; - - ioctl(net, SIOCATMARK, (char *)&atmark); - if (atmark) { - c = recv(net, netiring.supply, canread, MSG_OOB); - if ((c == -1) && (errno == EINVAL)) { - c = recv(net, netiring.supply, canread, 0); - if (clocks.didnetreceive < clocks.gotDM) { - SYNCHing = stilloob(net); - } - } else if (first && c > 0) { - /* - * Bogosity check. Systems based on 4.2BSD - * do not return an error if you do a second - * recv(MSG_OOB). So, we do one. If it - * succeeds and returns exactly the same - * data, then assume that we are running - * on a broken system and set the bogus_oob - * flag. (If the data was different, then - * we probably got some valid new data, so - * increment the count...) - */ - int i; - i = recv(net, netiring.supply + c, canread - c, MSG_OOB); - if (i == c && - memcmp(netiring.supply, netiring.supply + c, i) == 0) { - bogus_oob = 1; - first = 0; - } else if (i < 0) { - bogus_oob = 0; - first = 0; - } else - c += i; - } - if (bogus_oob && c > 0) { - int i; - /* - * Bogosity. We have to do the read - * to clear the atmark to get out of - * an infinate loop. - */ - i = read(net, netiring.supply + c, canread - c); - if (i > 0) - c += i; - } - } else { - c = recv(net, netiring.supply, canread, 0); - } - } else { - c = recv(net, netiring.supply, canread, 0); - } - settimer(didnetreceive); -#else /* !defined(SO_OOBINLINE) */ - c = recv(net, (char *)netiring.supply, canread, 0); -#endif /* !defined(SO_OOBINLINE) */ - if (c < 0 && errno == EWOULDBLOCK) { - c = 0; - } else if (c <= 0) { - return -1; - } - if (netdata) { - Dump('<', netiring.supply, c); - } - if (c) - ring_supplied(&netiring, c); - returnValue = 1; - } - - /* - * Something to read from the tty... - */ - if (FD_ISSET(tin, ibitsp)) { - FD_CLR(tin, ibitsp); - c = TerminalRead(ttyiring.supply, ring_empty_consecutive(&ttyiring)); - if (c < 0 && errno == EIO) - c = 0; - if (c < 0 && errno == EWOULDBLOCK) { - c = 0; - } else { - /* EOF detection for line mode!!!! */ - if ((c == 0) && MODE_LOCAL_CHARS(globalmode) && isatty(tin)) { - /* must be an EOF... */ - *ttyiring.supply = termEofChar; - c = 1; - } - if (c <= 0) { - return -1; - } - if (termdata) { - Dump('<', ttyiring.supply, c); - } - ring_supplied(&ttyiring, c); - } - returnValue = 1; /* did something useful */ - } - - if (FD_ISSET(net, obitsp)) { - FD_CLR(net, obitsp); - returnValue |= netflush(); - } - if (FD_ISSET(tout, obitsp)) { - FD_CLR(tout, obitsp); - returnValue |= (ttyflush(SYNCHing|flushout) > 0); - } - - return returnValue; -} diff --git a/usr.bin/telnet/telnet.1 b/usr.bin/telnet/telnet.1 deleted file mode 100644 index 3f2aebd..0000000 --- a/usr.bin/telnet/telnet.1 +++ /dev/null @@ -1,1423 +0,0 @@ -.\" Copyright (c) 1983, 1990, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)telnet.1 8.6 (Berkeley) 6/1/94 -.\" $FreeBSD$ -.\" -.Dd January 27, 2000 -.Dt TELNET 1 -.Os -.Sh NAME -.Nm telnet -.Nd user interface to the -.Tn TELNET -protocol -.Sh SYNOPSIS -.Nm -.Op Fl 468EFKLNacdfruxy -.Op Fl S Ar tos -.Op Fl X Ar authtype -.Op Fl e Ar escapechar -.Op Fl k Ar realm -.Op Fl l Ar user -.Op Fl n Ar tracefile -.Op Fl s Ar src_addr -.Oo -.Ar host -.Op Ar port -.Oc -.Sh DESCRIPTION -The -.Nm -command -is used to communicate with another host using the -.Tn TELNET -protocol. -If -.Nm -is invoked without the -.Ar host -argument, it enters command mode, -indicated by its prompt -.Pq Dq Li telnet\&> . -In this mode, it accepts and executes the commands listed below. -If it is invoked with arguments, it performs an -.Ic open -command with those arguments. -.Pp -Options: -.Bl -tag -width indent -.It Fl 4 -Forces -.Nm -to use IPv4 addresses only. -.It Fl 6 -Forces -.Nm -to use IPv6 addresses only. -.It Fl 8 -Specifies an 8-bit data path. This causes an attempt to -negotiate the -.Dv TELNET BINARY -option on both input and output. -.It Fl E -Stops any character from being recognized as an escape character. -.It Fl F -If Kerberos V5 authentication is being used, the -.Fl F -option allows the local credentials to be forwarded -to the remote system, including any credentials that -have already been forwarded into the local environment. -.It Fl K -Specifies no automatic login to the remote system. -.It Fl L -Specifies an 8-bit data path on output. This causes the -.Dv BINARY -option to be negotiated on output. -.It Fl N -Prevents IP address to name lookup when destination host is given -as an IP address. -.It Fl S Ar tos -Sets the IP type-of-service (TOS) option for the telnet -connection to the value -.Ar tos , -which can be a numeric TOS value -or, on systems that support it, a symbolic -TOS name found in the -.Pa /etc/iptos -file. -.It Fl X Ar atype -Disables the -.Ar atype -type of authentication. -.It Fl a -Attempt automatic login. -Currently, this sends the user name via the -.Ev USER -variable -of the -.Ev ENVIRON -option if supported by the remote system. -The name used is that of the current user as returned by -.Xr getlogin 2 -if it agrees with the current user ID, -otherwise it is the name associated with the user ID. -.It Fl c -Disables the reading of the user's -.Pa \&.telnetrc -file. (See the -.Ic toggle skiprc -command on this man page.) -.It Fl d -Sets the initial value of the -.Ic debug -toggle to -.Dv TRUE . -.It Fl e Ar escapechar -Sets the initial -.Nm -escape character to -.Ar escapechar . -If -.Ar escapechar -is omitted, then -there will be no escape character. -.It Fl f -If Kerberos V5 authentication is being used, the -.Fl f -option allows the local credentials to be forwarded to the remote system. -.It Fl k Ar realm -If Kerberos authentication is being used, the -.Fl k -option requests that -.Nm -obtain tickets for the remote host in -realm -.Ar realm -instead of the remote host's realm, as determined by -.Xr krb_realmofhost 3 . -.It Fl l Ar user -When connecting to the remote system, if the remote system -understands the -.Ev ENVIRON -option, then -.Ar user -will be sent to the remote system as the value for the variable -.Ev USER . -This option implies the -.Fl a -option. -This option may also be used with the -.Ic open -command. -.It Fl n Ar tracefile -Opens -.Ar tracefile -for recording trace information. -See the -.Ic set tracefile -command below. -.It Fl r -Specifies a user interface similar to -.Xr rlogin 1 . -In this -mode, the escape character is set to the tilde (~) character, -unless modified by the -.Fl e -option. -.It Fl s Ar src_addr -Set the source IP address for the -.Nm -connection to -.Ar src_addr , -which can be an IP address or a host name. -.It Fl u -Forces -.Nm -to use -.Dv AF_UNIX -addresses only (e.g., -.Ux -domain sockets, accessed with a file path). -.It Fl x -Turns on encryption of the data stream if possible. -.It Fl y -Suppresses encryption of the data stream. -.It Ar host -Indicates the official name, an alias, or the Internet address -of a remote host. -If -.Ar host -starts with a -.Ql / , -.Nm -establishes a connection to the corresponding named socket. -.It Ar port -Indicates a port number (address of an application). If a number is -not specified, the default -.Nm -port is used. -.El -.Pp -When in rlogin mode, a line of the form ~. disconnects from the -remote host; ~ is the -.Nm -escape character. -Similarly, the line ~^Z suspends the -.Nm -session. -The line ~^] escapes to the normal -.Nm -escape prompt. -.Pp -Once a connection has been opened, -.Nm -will attempt to enable the -.Dv TELNET LINEMODE -option. -If this fails, then -.Nm -will revert to one of two input modes: -either \*(Lqcharacter at a time\*(Rq -or \*(Lqold line by line\*(Rq -depending on what the remote system supports. -.Pp -When -.Dv LINEMODE -is enabled, character processing is done on the -local system, under the control of the remote system. When input -editing or character echoing is to be disabled, the remote system -will relay that information. The remote system will also relay -changes to any special characters that happen on the remote -system, so that they can take effect on the local system. -.Pp -In \*(Lqcharacter at a time\*(Rq mode, most -text typed is immediately sent to the remote host for processing. -.Pp -In \*(Lqold line by line\*(Rq mode, all text is echoed locally, -and (normally) only completed lines are sent to the remote host. -The \*(Lqlocal echo character\*(Rq (initially \*(Lq^E\*(Rq) may be used -to turn off and on the local echo -(this would mostly be used to enter passwords -without the password being echoed). -.Pp -If the -.Dv LINEMODE -option is enabled, or if the -.Ic localchars -toggle is -.Dv TRUE -(the default for \*(Lqold line by line\*(Rq; see below), -the user's -.Ic quit , -.Ic intr , -and -.Ic flush -characters are trapped locally, and sent as -.Tn TELNET -protocol sequences to the remote side. -If -.Dv LINEMODE -has ever been enabled, then the user's -.Ic susp -and -.Ic eof -are also sent as -.Tn TELNET -protocol sequences, -and -.Ic quit -is sent as a -.Dv TELNET ABORT -instead of -.Dv BREAK . -There are options (see -.Ic toggle -.Ic autoflush -and -.Ic toggle -.Ic autosynch -below) -which cause this action to flush subsequent output to the terminal -(until the remote host acknowledges the -.Tn TELNET -sequence) and flush previous terminal input -(in the case of -.Ic quit -and -.Ic intr ) . -.Pp -While connected to a remote host, -.Nm -command mode may be entered by typing the -.Nm -\*(Lqescape character\*(Rq (initially \*(Lq^]\*(Rq). -When in command mode, the normal terminal editing conventions are available. -.Pp -The following -.Nm -commands are available. -Only enough of each command to uniquely identify it need be typed -(this is also true for arguments to the -.Ic mode , -.Ic set , -.Ic toggle , -.Ic unset , -.Ic slc , -.Ic environ , -and -.Ic display -commands). -.Pp -.Bl -tag -width "mode type" -.It Ic auth Ar argument ... -The auth command manipulates the information sent through the -.Dv TELNET AUTHENTICATE -option. Valid arguments for the -.Ic auth -command are: -.Bl -tag -width "disable type" -.It Ic disable Ar type -Disables the specified type of authentication. To -obtain a list of available types, use the -.Ic auth disable ?\& -command. -.It Ic enable Ar type -Enables the specified type of authentication. To -obtain a list of available types, use the -.Ic auth enable ?\& -command. -.It Ic status -Lists the current status of the various types of -authentication. -.El -.It Ic close -Close a -.Tn TELNET -session and return to command mode. -.It Ic display Ar argument ... -Displays all, or some, of the -.Ic set -and -.Ic toggle -values (see below). -.It Ic encrypt Ar argument ... -The encrypt command manipulates the information sent through the -.Dv TELNET ENCRYPT -option. -.Pp -Valid arguments for the -.Ic encrypt -command are: -.Bl -tag -width Ar -.It Ic disable Ar type Xo -.Op Cm input | output -.Xc -Disables the specified type of encryption. If you -omit the input and output, both input and output -are disabled. To obtain a list of available -types, use the -.Ic encrypt disable ?\& -command. -.It Ic enable Ar type Xo -.Op Cm input | output -.Xc -Enables the specified type of encryption. If you -omit input and output, both input and output are -enabled. To obtain a list of available types, use the -.Ic encrypt enable ?\& -command. -.It Ic input -This is the same as the -.Ic encrypt start input -command. -.It Ic -input -This is the same as the -.Ic encrypt stop input -command. -.It Ic output -This is the same as the -.Ic encrypt start output -command. -.It Ic -output -This is the same as the -.Ic encrypt stop output -command. -.It Ic start Op Cm input | output -Attempts to start encryption. If you omit -.Ic input -and -.Ic output , -both input and output are enabled. To -obtain a list of available types, use the -.Ic encrypt enable ?\& -command. -.It Ic status -Lists the current status of encryption. -.It Ic stop Op Cm input | output -Stops encryption. If you omit input and output, -encryption is on both input and output. -.It Ic type Ar type -Sets the default type of encryption to be used -with later -.Ic encrypt start -or -.Ic encrypt stop -commands. -.El -.It Ic environ Ar arguments ... -The -.Ic environ -command is used to manipulate the -variables that may be sent through the -.Dv TELNET ENVIRON -option. -The initial set of variables is taken from the users -environment, with only the -.Ev DISPLAY -and -.Ev PRINTER -variables being exported by default. -The -.Ev USER -variable is also exported if the -.Fl a -or -.Fl l -options are used. -.Pp -Valid arguments for the -.Ic environ -command are: -.Bl -tag -width Fl -.It Ic define Ar variable value -Define the variable -.Ar variable -to have a value of -.Ar value . -Any variables defined by this command are automatically exported. -The -.Ar value -may be enclosed in single or double quotes so -that tabs and spaces may be included. -.It Ic undefine Ar variable -Remove -.Ar variable -from the list of environment variables. -.It Ic export Ar variable -Mark the variable -.Ar variable -to be exported to the remote side. -.It Ic unexport Ar variable -Mark the variable -.Ar variable -to not be exported unless -explicitly asked for by the remote side. -.It Ic list -List the current set of environment variables. -Those marked with a -.Cm * -will be sent automatically, -other variables will only be sent if explicitly requested. -.It Ic ?\& -Prints out help information for the -.Ic environ -command. -.El -.It Ic logout -Sends the -.Dv TELNET LOGOUT -option to the remote side. -This command is similar to a -.Ic close -command; however, if the remote side does not support the -.Dv LOGOUT -option, nothing happens. -If, however, the remote side does support the -.Dv LOGOUT -option, this command should cause the remote side to close the -.Tn TELNET -connection. -If the remote side also supports the concept of -suspending a user's session for later reattachment, -the logout argument indicates that you -should terminate the session immediately. -.It Ic mode Ar type -.Ar Type -is one of several options, depending on the state of the -.Tn TELNET -session. -The remote host is asked for permission to go into the requested mode. -If the remote host is capable of entering that mode, the requested -mode will be entered. -.Bl -tag -width Ar -.It Ic character -Disable the -.Dv TELNET LINEMODE -option, or, if the remote side does not understand the -.Dv LINEMODE -option, then enter \*(Lqcharacter at a time\*(Rq mode. -.It Ic line -Enable the -.Dv TELNET LINEMODE -option, or, if the remote side does not understand the -.Dv LINEMODE -option, then attempt to enter \*(Lqold-line-by-line\*(Rq mode. -.It Ic isig Pq Ic \-isig -Attempt to enable (disable) the -.Dv TRAPSIG -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic edit Pq Ic \-edit -Attempt to enable (disable) the -.Dv EDIT -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic softtabs Pq Ic \-softtabs -Attempt to enable (disable) the -.Dv SOFT_TAB -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic litecho Pq Ic \-litecho -Attempt to enable (disable) the -.Dv LIT_ECHO -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic ?\& -Prints out help information for the -.Ic mode -command. -.El -.It Xo -.Ic open Ar host -.Op Fl l Ar user -.Op Oo Fl Oc Ns Ar port -.Xc -Open a connection to the named host. -If no port number -is specified, -.Nm -will attempt to contact a -.Tn TELNET -server at the default port. -The host specification may be either a host name (see -.Xr hosts 5 ) , -an Internet address specified in the \*(Lqdot notation\*(Rq (see -.Xr inet 3 ) , -or IPv6 host name or IPv6 coloned-hexadecimal address. -The -.Fl l -option may be used to specify the user name -to be passed to the remote system via the -.Ev ENVIRON -option. -When connecting to a non-standard port, -.Nm -omits any automatic initiation of -.Tn TELNET -options. When the port number is preceded by a minus sign, -the initial option negotiation is done. -After establishing a connection, the file -.Pa \&.telnetrc -in the -users home directory is opened. Lines beginning with a # are -comment lines. Blank lines are ignored. Lines that begin -without white space are the start of a machine entry. The -first thing on the line is the name of the machine that is -being connected to. The rest of the line, and successive -lines that begin with white space are assumed to be -.Nm -commands and are processed as if they had been typed -in manually to the -.Nm -command prompt. -.It Ic quit -Close any open -.Tn TELNET -session and exit -.Nm . -An end of file (in command mode) will also close a session and exit. -.It Ic send Ar arguments -Sends one or more special character sequences to the remote host. -The following are the arguments which may be specified -(more than one argument may be specified at a time): -.Pp -.Bl -tag -width escape -.It Ic abort -Sends the -.Dv TELNET ABORT -(Abort -processes) -sequence. -.It Ic ao -Sends the -.Dv TELNET AO -(Abort Output) sequence, which should cause the remote system to flush -all output -.Em from -the remote system -.Em to -the user's terminal. -.It Ic ayt -Sends the -.Dv TELNET AYT -(Are You There) -sequence, to which the remote system may or may not choose to respond. -.It Ic brk -Sends the -.Dv TELNET BRK -(Break) sequence, which may have significance to the remote -system. -.It Ic ec -Sends the -.Dv TELNET EC -(Erase Character) -sequence, which should cause the remote system to erase the last character -entered. -.It Ic el -Sends the -.Dv TELNET EL -(Erase Line) -sequence, which should cause the remote system to erase the line currently -being entered. -.It Ic eof -Sends the -.Dv TELNET EOF -(End Of File) -sequence. -.It Ic eor -Sends the -.Dv TELNET EOR -(End of Record) -sequence. -.It Ic escape -Sends the current -.Nm -escape character (initially \*(Lq^\*(Rq). -.It Ic ga -Sends the -.Dv TELNET GA -(Go Ahead) -sequence, which likely has no significance to the remote system. -.It Ic getstatus -If the remote side supports the -.Dv TELNET STATUS -command, -.Ic getstatus -will send the subnegotiation to request that the server send -its current option status. -.It Ic ip -Sends the -.Dv TELNET IP -(Interrupt Process) sequence, which should cause the remote -system to abort the currently running process. -.It Ic nop -Sends the -.Dv TELNET NOP -(No OPeration) -sequence. -.It Ic susp -Sends the -.Dv TELNET SUSP -(SUSPend process) -sequence. -.It Ic synch -Sends the -.Dv TELNET SYNCH -sequence. -This sequence causes the remote system to discard all previously typed -(but not yet read) input. -This sequence is sent as -.Tn TCP -urgent -data (and may not work if the remote system is a -.Bx 4.2 -system -- if -it doesn't work, a lower case \*(Lqr\*(Rq may be echoed on the terminal). -.It Ic do Ar cmd -.It Ic dont Ar cmd -.It Ic will Ar cmd -.It Ic wont Ar cmd -Sends the -.Dv TELNET DO -.Ar cmd -sequence. -.Ar Cmd -can be either a decimal number between 0 and 255, -or a symbolic name for a specific -.Dv TELNET -command. -.Ar Cmd -can also be either -.Ic help -or -.Ic ?\& -to print out help information, including -a list of known symbolic names. -.It Ic ?\& -Prints out help information for the -.Ic send -command. -.El -.It Ic set Ar argument value -.It Ic unset Ar argument value -The -.Ic set -command will set any one of a number of -.Nm -variables to a specific value or to -.Dv TRUE . -The special value -.Ic off -turns off the function associated with -the variable, this is equivalent to using the -.Ic unset -command. -The -.Ic unset -command will disable or set to -.Dv FALSE -any of the specified functions. -The values of variables may be interrogated with the -.Ic display -command. -The variables which may be set or unset, but not toggled, are -listed here. In addition, any of the variables for the -.Ic toggle -command may be explicitly set or unset using -the -.Ic set -and -.Ic unset -commands. -.Bl -tag -width escape -.It Ic ayt -If -.Tn TELNET -is in localchars mode, or -.Dv LINEMODE -is enabled, and the status character is typed, a -.Dv TELNET AYT -sequence (see -.Ic send ayt -preceding) is sent to the -remote host. The initial value for the \*(LqAre You There\*(Rq -character is the terminal's status character. -.It Ic echo -This is the value (initially \*(Lq^E\*(Rq) which, when in -\*(Lqline by line\*(Rq mode, toggles between doing local echoing -of entered characters (for normal processing), and suppressing -echoing of entered characters (for entering, say, a password). -.It Ic eof -If -.Nm -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Rq mode, entering this character -as the first character on a line will cause this character to be -sent to the remote system. -The initial value of the eof character is taken to be the terminal's -.Ic eof -character. -.It Ic erase -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below), -.Sy and -if -.Nm -is operating in \*(Lqcharacter at a time\*(Rq mode, then when this -character is typed, a -.Dv TELNET EC -sequence (see -.Ic send -.Ic ec -above) -is sent to the remote system. -The initial value for the erase character is taken to be -the terminal's -.Ic erase -character. -.It Ic escape -This is the -.Nm -escape character (initially \*(Lq^[\*(Rq) which causes entry -into -.Nm -command mode (when connected to a remote system). -.It Ic flushoutput -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below) -and the -.Ic flushoutput -character is typed, a -.Dv TELNET AO -sequence (see -.Ic send -.Ic ao -above) -is sent to the remote host. -The initial value for the flush character is taken to be -the terminal's -.Ic flush -character. -.It Ic forw1 -.It Ic forw2 -If -.Nm -is operating in -.Dv LINEMODE , -these are the -characters that, when typed, cause partial lines to be -forwarded to the remote system. The initial value for -the forwarding characters are taken from the terminal's -eol and eol2 characters. -.It Ic interrupt -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below) -and the -.Ic interrupt -character is typed, a -.Dv TELNET IP -sequence (see -.Ic send -.Ic ip -above) -is sent to the remote host. -The initial value for the interrupt character is taken to be -the terminal's -.Ic intr -character. -.It Ic kill -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below), -.Ic and -if -.Nm -is operating in \*(Lqcharacter at a time\*(Rq mode, then when this -character is typed, a -.Dv TELNET EL -sequence (see -.Ic send -.Ic el -above) -is sent to the remote system. -The initial value for the kill character is taken to be -the terminal's -.Ic kill -character. -.It Ic lnext -If -.Nm -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Rq mode, then this character is taken to -be the terminal's -.Ic lnext -character. -The initial value for the lnext character is taken to be -the terminal's -.Ic lnext -character. -.It Ic quit -If -.Nm -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below) -and the -.Ic quit -character is typed, a -.Dv TELNET BRK -sequence (see -.Ic send -.Ic brk -above) -is sent to the remote host. -The initial value for the quit character is taken to be -the terminal's -.Ic quit -character. -.It Ic reprint -If -.Nm -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Rq mode, then this character is taken to -be the terminal's -.Ic reprint -character. -The initial value for the reprint character is taken to be -the terminal's -.Ic reprint -character. -.It Ic rlogin -This is the rlogin escape character. -If set, the normal -.Nm -escape character is ignored unless it is -preceded by this character at the beginning of a line. -This character, at the beginning of a line followed by -a "." closes the connection; when followed by a ^Z it -suspends the -.Nm -command. The initial state is to -disable the -.Nm rlogin -escape character. -.It Ic start -If the -.Dv TELNET TOGGLE-FLOW-CONTROL -option has been enabled, -then this character is taken to -be the terminal's -.Ic start -character. -The initial value for the start character is taken to be -the terminal's -.Ic start -character. -.It Ic stop -If the -.Dv TELNET TOGGLE-FLOW-CONTROL -option has been enabled, -then this character is taken to -be the terminal's -.Ic stop -character. -The initial value for the stop character is taken to be -the terminal's -.Ic stop -character. -.It Ic susp -If -.Nm -is in -.Ic localchars -mode, or -.Dv LINEMODE -is enabled, and the -.Ic suspend -character is typed, a -.Dv TELNET SUSP -sequence (see -.Ic send -.Ic susp -above) -is sent to the remote host. -The initial value for the suspend character is taken to be -the terminal's -.Ic suspend -character. -.It Ic tracefile -This is the file to which the output, caused by -.Ic netdata -or -.Ic option -tracing being -.Dv TRUE , -will be written. If it is set to -.Dq Fl , -then tracing information will be written to standard output (the default). -.It Ic worderase -If -.Nm -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Rq mode, then this character is taken to -be the terminal's -.Ic worderase -character. -The initial value for the worderase character is taken to be -the terminal's -.Ic worderase -character. -.It Ic ?\& -Displays the legal -.Ic set -.Pq Ic unset -commands. -.El -.It Ic opie Ar sequence challenge -The -.Ic opie -command computes a response to the OPIE challenge. -.It Ic slc Ar state -The -.Ic slc -command (Set Local Characters) is used to set -or change the state of the special -characters when the -.Dv TELNET LINEMODE -option has -been enabled. Special characters are characters that get -mapped to -.Tn TELNET -commands sequences (like -.Ic ip -or -.Ic quit ) -or line editing characters (like -.Ic erase -and -.Ic kill ) . -By default, the local special characters are exported. -.Bl -tag -width Fl -.It Ic check -Verify the current settings for the current special characters. -The remote side is requested to send all the current special -character settings, and if there are any discrepancies with -the local side, the local side will switch to the remote value. -.It Ic export -Switch to the local defaults for the special characters. The -local default characters are those of the local terminal at -the time when -.Nm -was started. -.It Ic import -Switch to the remote defaults for the special characters. -The remote default characters are those of the remote system -at the time when the -.Tn TELNET -connection was established. -.It Ic ?\& -Prints out help information for the -.Ic slc -command. -.El -.It Ic status -Show the current status of -.Nm . -This includes the peer one is connected to, as well -as the current mode. -.It Ic toggle Ar arguments ... -Toggle (between -.Dv TRUE -and -.Dv FALSE ) -various flags that control how -.Nm -responds to events. -These flags may be set explicitly to -.Dv TRUE -or -.Dv FALSE -using the -.Ic set -and -.Ic unset -commands listed above. -More than one argument may be specified. -The state of these flags may be interrogated with the -.Ic display -command. -Valid arguments are: -.Bl -tag -width Ar -.It Ic authdebug -Turns on debugging information for the authentication code. -.It Ic autoflush -If -.Ic autoflush -and -.Ic localchars -are both -.Dv TRUE , -then when the -.Ic ao , -or -.Ic quit -characters are recognized (and transformed into -.Tn TELNET -sequences; see -.Ic set -above for details), -.Nm -refuses to display any data on the user's terminal -until the remote system acknowledges (via a -.Dv TELNET TIMING MARK -option) -that it has processed those -.Tn TELNET -sequences. -The initial value for this toggle is -.Dv TRUE -if the terminal user had not -done an "stty noflsh", otherwise -.Dv FALSE -(see -.Xr stty 1 ) . -.It Ic autodecrypt -When the -.Dv TELNET ENCRYPT -option is negotiated, by -default the actual encryption (decryption) of the data -stream does not start automatically. The autoencrypt -(autodecrypt) command states that encryption of the -output (input) stream should be enabled as soon as -possible. -.It Ic autologin -If the remote side supports the -.Dv TELNET AUTHENTICATION -option -.Nm -attempts to use it to perform automatic authentication. If the -.Dv AUTHENTICATION -option is not supported, the user's login -name are propagated through the -.Dv TELNET ENVIRON -option. -This command is the same as specifying -.Fl a -option on the -.Ic open -command. -.It Ic autosynch -If -.Ic autosynch -and -.Ic localchars -are both -.Dv TRUE , -then when either the -.Ic intr -or -.Ic quit -characters is typed (see -.Ic set -above for descriptions of the -.Ic intr -and -.Ic quit -characters), the resulting -.Tn TELNET -sequence sent is followed by the -.Dv TELNET SYNCH -sequence. -This procedure -.Ic should -cause the remote system to begin throwing away all previously -typed input until both of the -.Tn TELNET -sequences have been read and acted upon. -The initial value of this toggle is -.Dv FALSE . -.It Ic binary -Enable or disable the -.Dv TELNET BINARY -option on both input and output. -.It Ic inbinary -Enable or disable the -.Dv TELNET BINARY -option on input. -.It Ic outbinary -Enable or disable the -.Dv TELNET BINARY -option on output. -.It Ic crlf -If this is -.Dv TRUE , -then carriage returns will be sent as -.Li <CR><LF> . -If this is -.Dv FALSE , -then carriage returns will be send as -.Li <CR><NUL> . -The initial value for this toggle is -.Dv FALSE . -.It Ic crmod -Toggle carriage return mode. -When this mode is enabled, most carriage return characters received from -the remote host will be mapped into a carriage return followed by -a line feed. -This mode does not affect those characters typed by the user, only -those received from the remote host. -This mode is not very useful unless the remote host -only sends carriage return, but never line feed. -The initial value for this toggle is -.Dv FALSE . -.It Ic debug -Toggles socket level debugging (useful only to the -.Ic super user ) . -The initial value for this toggle is -.Dv FALSE . -.It Ic encdebug -Turns on debugging information for the encryption code. -.It Ic localchars -If this is -.Dv TRUE , -then the -.Ic flush , -.Ic interrupt , -.Ic quit , -.Ic erase , -and -.Ic kill -characters (see -.Ic set -above) are recognized locally, and transformed into (hopefully) appropriate -.Tn TELNET -control sequences -(respectively -.Ic ao , -.Ic ip , -.Ic brk , -.Ic ec , -and -.Ic el ; -see -.Ic send -above). -The initial value for this toggle is -.Dv TRUE -in \*(Lqold line by line\*(Rq mode, -and -.Dv FALSE -in \*(Lqcharacter at a time\*(Rq mode. -When the -.Dv LINEMODE -option is enabled, the value of -.Ic localchars -is ignored, and assumed to always be -.Dv TRUE . -If -.Dv LINEMODE -has ever been enabled, then -.Ic quit -is sent as -.Ic abort , -and -.Ic eof -and -.Ic suspend -are sent as -.Ic eof -and -.Ic susp -(see -.Ic send -above). -.It Ic netdata -Toggles the display of all network data (in hexadecimal format). -The initial value for this toggle is -.Dv FALSE . -.It Ic options -Toggles the display of some internal -.Nm -protocol processing (having to do with -.Tn TELNET -options). -The initial value for this toggle is -.Dv FALSE . -.It Ic prettydump -When the -.Ic netdata -toggle is enabled, if -.Ic prettydump -is enabled the output from the -.Ic netdata -command will be formatted in a more user readable format. -Spaces are put between each character in the output, and the -beginning of any -.Nm -escape sequence is preceded by a '*' to aid in locating them. -.It Ic skiprc -When the skiprc toggle is -.Dv TRUE , -.Nm -skips the reading of the -.Pa \&.telnetrc -file in the users home -directory when connections are opened. The initial -value for this toggle is -.Dv FALSE . -.It Ic termdata -Toggles the display of all terminal data (in hexadecimal format). -The initial value for this toggle is -.Dv FALSE . -.It Ic verbose_encrypt -When the -.Ic verbose_encrypt -toggle is -.Dv TRUE , -.Nm -prints out a message each time encryption is enabled or -disabled. The initial value for this toggle is -.Dv FALSE . -.It Ic ?\& -Displays the legal -.Ic toggle -commands. -.El -.It Ic z -Suspend -.Nm . -This command only works when the user is using the -.Xr csh 1 . -.It Ic \&! Op Ar command -Execute a single command in a subshell on the local -system. If -.Ar command -is omitted, then an interactive -subshell is invoked. -.It Ic ?\& Op Ar command -Get help. With no arguments, -.Nm -prints a help summary. -If -.Ar command -is specified, -.Nm -will print the help information for just that command. -.El -.Sh ENVIRONMENT -The -.Nm -utility uses at least the -.Ev HOME , -.Ev SHELL , -.Ev DISPLAY , -and -.Ev TERM -environment variables. -Other environment variables may be propagated -to the other side via the -.Dv TELNET ENVIRON -option. -.Sh SEE ALSO -.Xr rlogin 1 , -.Xr rsh 1 , -.Xr hosts 5 , -.Xr nologin 5 , -.Xr telnetd 8 -.Sh FILES -.Bl -tag -width ~/.telnetrc -compact -.It Pa ~/.telnetrc -user customized telnet startup values -.El -.Sh HISTORY -The -.Nm -command appeared in -.Bx 4.2 . -.Pp -IPv6 support was added by WIDE/KAME project. -.Sh NOTES -On some remote systems, echo has to be turned off manually when in -\*(Lqold line by line\*(Rq mode. -.Pp -In \*(Lqold line by line\*(Rq mode or -.Dv LINEMODE -the terminal's -.Ic eof -character is only recognized (and sent to the remote system) -when it is the first character on a line. diff --git a/usr.bin/telnet/telnet.c b/usr.bin/telnet/telnet.c deleted file mode 100644 index 75c27a5..0000000 --- a/usr.bin/telnet/telnet.c +++ /dev/null @@ -1,2215 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)telnet.c 8.4 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> - -/* By the way, we need to include curses.h before telnet.h since, - * among other things, telnet.h #defines 'DO', which is a variable - * declared in curses.h. - */ - -#include <ctype.h> -#include <curses.h> -#include <signal.h> -#include <stdlib.h> -#include <term.h> -#include <unistd.h> -#include <arpa/telnet.h> - -#include "ring.h" - -#include "defines.h" -#include "externs.h" -#include "types.h" -#include "general.h" - -#include <libtelnet/misc.h> - -#define strip(x) ((my_want_state_is_wont(TELOPT_BINARY)) ? ((x)&0x7f) : (x)) - -static unsigned char subbuffer[SUBBUFSIZE], - *subpointer, *subend; /* buffer for sub-options */ -#define SB_CLEAR() subpointer = subbuffer; -#define SB_TERM() { subend = subpointer; SB_CLEAR(); } -#define SB_ACCUM(c) if (subpointer < (subbuffer+sizeof subbuffer)) { \ - *subpointer++ = (c); \ - } - -#define SB_GET() ((*subpointer++)&0xff) -#define SB_PEEK() ((*subpointer)&0xff) -#define SB_EOF() (subpointer >= subend) -#define SB_LEN() (subend - subpointer) - -char options[256]; /* The combined options */ -char do_dont_resp[256]; -char will_wont_resp[256]; - -int - eight = 0, - autologin = 0, /* Autologin anyone? */ - skiprc = 0, - connected, - showoptions, - ISend, /* trying to send network data in */ - telnet_debug = 0, - crmod, - netdata, /* Print out network data flow */ - crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ - telnetport, - SYNCHing, /* we are in TELNET SYNCH mode */ - flushout, /* flush output */ - autoflush = 0, /* flush output when interrupting? */ - autosynch, /* send interrupt characters with SYNCH? */ - localflow, /* we handle flow control locally */ - restartany, /* if flow control enabled, restart on any character */ - localchars, /* we recognize interrupt/quit */ - donelclchars, /* the user has set "localchars" */ - donebinarytoggle, /* the user has put us in binary */ - dontlecho, /* do we suppress local echoing right now? */ - globalmode, - doaddrlookup = 1, /* do a reverse address lookup? */ - clienteof = 0; - -char *prompt = 0; - -cc_t escape; -cc_t rlogin; -#ifdef KLUDGELINEMODE -cc_t echoc; -#endif - -/* - * Telnet receiver states for fsm - */ -#define TS_DATA 0 -#define TS_IAC 1 -#define TS_WILL 2 -#define TS_WONT 3 -#define TS_DO 4 -#define TS_DONT 5 -#define TS_CR 6 -#define TS_SB 7 /* sub-option collection */ -#define TS_SE 8 /* looking for sub-option end */ - -static int telrcv_state; -#ifdef OLD_ENVIRON -unsigned char telopt_environ = TELOPT_NEW_ENVIRON; -#else -# define telopt_environ TELOPT_NEW_ENVIRON -#endif - -jmp_buf toplevel; -jmp_buf peerdied; - -int flushline; -int linemode; - -#ifdef KLUDGELINEMODE -int kludgelinemode = 1; -#endif - -static int is_unique(char *, char **, char **); - -/* - * The following are some clocks used to decide how to interpret - * the relationship between various variables. - */ - -Clocks clocks; - -/* - * Initialize telnet environment. - */ - -void -init_telnet(void) -{ - env_init(); - - SB_CLEAR(); - ClearArray(options); - - connected = ISend = localflow = donebinarytoggle = 0; - restartany = -1; - - SYNCHing = 0; - - /* Don't change NetTrace */ - - escape = CONTROL(']'); - rlogin = _POSIX_VDISABLE; -#ifdef KLUDGELINEMODE - echoc = CONTROL('E'); -#endif - - flushline = 1; - telrcv_state = TS_DATA; -} - - -/* - * These routines are in charge of sending option negotiations - * to the other side. - * - * The basic idea is that we send the negotiation if either side - * is in disagreement as to what the current state should be. - */ - -void -send_do(int c, int init) -{ - if (init) { - if (((do_dont_resp[c] == 0) && my_state_is_do(c)) || - my_want_state_is_do(c)) - return; - set_my_want_state_do(c); - do_dont_resp[c]++; - } - NET2ADD(IAC, DO); - NETADD(c); - printoption("SENT", DO, c); -} - -void -send_dont(int c, int init) -{ - if (init) { - if (((do_dont_resp[c] == 0) && my_state_is_dont(c)) || - my_want_state_is_dont(c)) - return; - set_my_want_state_dont(c); - do_dont_resp[c]++; - } - NET2ADD(IAC, DONT); - NETADD(c); - printoption("SENT", DONT, c); -} - -void -send_will(int c, int init) -{ - if (init) { - if (((will_wont_resp[c] == 0) && my_state_is_will(c)) || - my_want_state_is_will(c)) - return; - set_my_want_state_will(c); - will_wont_resp[c]++; - } - NET2ADD(IAC, WILL); - NETADD(c); - printoption("SENT", WILL, c); -} - -void -send_wont(int c, int init) -{ - if (init) { - if (((will_wont_resp[c] == 0) && my_state_is_wont(c)) || - my_want_state_is_wont(c)) - return; - set_my_want_state_wont(c); - will_wont_resp[c]++; - } - NET2ADD(IAC, WONT); - NETADD(c); - printoption("SENT", WONT, c); -} - -void -willoption(int option) -{ - int new_state_ok = 0; - - if (do_dont_resp[option]) { - --do_dont_resp[option]; - if (do_dont_resp[option] && my_state_is_do(option)) - --do_dont_resp[option]; - } - - if ((do_dont_resp[option] == 0) && my_want_state_is_dont(option)) { - - switch (option) { - - case TELOPT_ECHO: - case TELOPT_BINARY: - case TELOPT_SGA: - settimer(modenegotiated); - /* FALLTHROUGH */ - case TELOPT_STATUS: - new_state_ok = 1; - break; - - case TELOPT_TM: - if (flushout) - flushout = 0; - /* - * Special case for TM. If we get back a WILL, - * pretend we got back a WONT. - */ - set_my_want_state_dont(option); - set_my_state_dont(option); - return; /* Never reply to TM will's/wont's */ - - case TELOPT_LINEMODE: - default: - break; - } - - if (new_state_ok) { - set_my_want_state_do(option); - send_do(option, 0); - setconnmode(0); /* possibly set new tty mode */ - } else { - do_dont_resp[option]++; - send_dont(option, 0); - } - } - set_my_state_do(option); -} - -void -wontoption(int option) -{ - if (do_dont_resp[option]) { - --do_dont_resp[option]; - if (do_dont_resp[option] && my_state_is_dont(option)) - --do_dont_resp[option]; - } - - if ((do_dont_resp[option] == 0) && my_want_state_is_do(option)) { - - switch (option) { - -#ifdef KLUDGELINEMODE - case TELOPT_SGA: - if (!kludgelinemode) - break; - /* FALLTHROUGH */ -#endif - case TELOPT_ECHO: - settimer(modenegotiated); - break; - - case TELOPT_TM: - if (flushout) - flushout = 0; - set_my_want_state_dont(option); - set_my_state_dont(option); - return; /* Never reply to TM will's/wont's */ - - default: - break; - } - set_my_want_state_dont(option); - if (my_state_is_do(option)) - send_dont(option, 0); - setconnmode(0); /* Set new tty mode */ - } else if (option == TELOPT_TM) { - /* - * Special case for TM. - */ - if (flushout) - flushout = 0; - set_my_want_state_dont(option); - } - set_my_state_dont(option); -} - -static void -dooption(int option) -{ - int new_state_ok = 0; - - if (will_wont_resp[option]) { - --will_wont_resp[option]; - if (will_wont_resp[option] && my_state_is_will(option)) - --will_wont_resp[option]; - } - - if (will_wont_resp[option] == 0) { - if (my_want_state_is_wont(option)) { - - switch (option) { - - case TELOPT_TM: - /* - * Special case for TM. We send a WILL, but pretend - * we sent WONT. - */ - send_will(option, 0); - set_my_want_state_wont(TELOPT_TM); - set_my_state_wont(TELOPT_TM); - return; - - case TELOPT_BINARY: /* binary mode */ - case TELOPT_NAWS: /* window size */ - case TELOPT_TSPEED: /* terminal speed */ - case TELOPT_LFLOW: /* local flow control */ - case TELOPT_TTYPE: /* terminal type option */ - case TELOPT_SGA: /* no big deal */ - new_state_ok = 1; - break; - - case TELOPT_NEW_ENVIRON: /* New environment variable option */ -#ifdef OLD_ENVIRON - if (my_state_is_will(TELOPT_OLD_ENVIRON)) - send_wont(TELOPT_OLD_ENVIRON, 1); /* turn off the old */ - goto env_common; - case TELOPT_OLD_ENVIRON: /* Old environment variable option */ - if (my_state_is_will(TELOPT_NEW_ENVIRON)) - break; /* Don't enable if new one is in use! */ - env_common: - telopt_environ = option; -#endif - new_state_ok = 1; - break; - - - case TELOPT_XDISPLOC: /* X Display location */ - if (env_getvalue("DISPLAY")) - new_state_ok = 1; - break; - - case TELOPT_LINEMODE: -#ifdef KLUDGELINEMODE - kludgelinemode = 0; - send_do(TELOPT_SGA, 1); -#endif - set_my_want_state_will(TELOPT_LINEMODE); - send_will(option, 0); - set_my_state_will(TELOPT_LINEMODE); - slc_init(); - return; - - case TELOPT_ECHO: /* We're never going to echo... */ - default: - break; - } - - if (new_state_ok) { - set_my_want_state_will(option); - send_will(option, 0); - setconnmode(0); /* Set new tty mode */ - } else { - will_wont_resp[option]++; - send_wont(option, 0); - } - } else { - /* - * Handle options that need more things done after the - * other side has acknowledged the option. - */ - switch (option) { - case TELOPT_LINEMODE: -#ifdef KLUDGELINEMODE - kludgelinemode = 0; - send_do(TELOPT_SGA, 1); -#endif - set_my_state_will(option); - slc_init(); - send_do(TELOPT_SGA, 0); - return; - } - } - } - set_my_state_will(option); -} - -static void -dontoption(int option) -{ - - if (will_wont_resp[option]) { - --will_wont_resp[option]; - if (will_wont_resp[option] && my_state_is_wont(option)) - --will_wont_resp[option]; - } - - if ((will_wont_resp[option] == 0) && my_want_state_is_will(option)) { - switch (option) { - case TELOPT_LINEMODE: - linemode = 0; /* put us back to the default state */ - break; -#ifdef OLD_ENVIRON - case TELOPT_NEW_ENVIRON: - /* - * The new environ option wasn't recognized, try - * the old one. - */ - send_will(TELOPT_OLD_ENVIRON, 1); - telopt_environ = TELOPT_OLD_ENVIRON; - break; -#endif - } - /* we always accept a DONT */ - set_my_want_state_wont(option); - if (my_state_is_will(option)) - send_wont(option, 0); - setconnmode(0); /* Set new tty mode */ - } - set_my_state_wont(option); -} - -/* - * Given a buffer returned by tgetent(), this routine will turn - * the pipe separated list of names in the buffer into an array - * of pointers to null terminated names. We toss out any bad, - * duplicate, or verbose names (names with spaces). - */ - -static const char *name_unknown = "UNKNOWN"; -static const char *unknown[] = { NULL, NULL }; - -static const char ** -mklist(char *buf, char *name) -{ - int n; - char c, *cp, **argvp, *cp2, **argv, **avt; - - if (name) { - if (strlen(name) > 40) { - name = 0; - unknown[0] = name_unknown; - } else { - unknown[0] = name; - upcase(name); - } - } else - unknown[0] = name_unknown; - /* - * Count up the number of names. - */ - for (n = 1, cp = buf; *cp && *cp != ':'; cp++) { - if (*cp == '|') - n++; - } - /* - * Allocate an array to put the name pointers into - */ - argv = (char **)malloc((n+3)*sizeof(char *)); - if (argv == 0) - return(unknown); - - /* - * Fill up the array of pointers to names. - */ - *argv = 0; - argvp = argv+1; - n = 0; - for (cp = cp2 = buf; (c = *cp); cp++) { - if (c == '|' || c == ':') { - *cp++ = '\0'; - /* - * Skip entries that have spaces or are over 40 - * characters long. If this is our environment - * name, then put it up front. Otherwise, as - * long as this is not a duplicate name (case - * insensitive) add it to the list. - */ - if (n || (cp - cp2 > 41)) - ; - else if (name && (strncasecmp(name, cp2, cp-cp2) == 0)) - *argv = cp2; - else if (is_unique(cp2, argv+1, argvp)) - *argvp++ = cp2; - if (c == ':') - break; - /* - * Skip multiple delimiters. Reset cp2 to - * the beginning of the next name. Reset n, - * the flag for names with spaces. - */ - while ((c = *cp) == '|') - cp++; - cp2 = cp; - n = 0; - } - /* - * Skip entries with spaces or non-ascii values. - * Convert lower case letters to upper case. - */ - if ((c == ' ') || !isascii(c)) - n = 1; - else if (islower(c)) - *cp = toupper(c); - } - - /* - * Check for an old V6 2 character name. If the second - * name points to the beginning of the buffer, and is - * only 2 characters long, move it to the end of the array. - */ - if ((argv[1] == buf) && (strlen(argv[1]) == 2)) { - --argvp; - for (avt = &argv[1]; avt < argvp; avt++) - *avt = *(avt+1); - *argvp++ = buf; - } - - /* - * Duplicate last name, for TTYPE option, and null - * terminate the array. If we didn't find a match on - * our terminal name, put that name at the beginning. - */ - cp = *(argvp-1); - *argvp++ = cp; - *argvp = 0; - - if (*argv == 0) { - if (name) - *argv = name; - else { - --argvp; - for (avt = argv; avt < argvp; avt++) - *avt = *(avt+1); - } - } - if (*argv) - return((const char **)argv); - else - return(unknown); -} - -static int -is_unique(char *name, char **as, char **ae) -{ - char **ap; - int n; - - n = strlen(name) + 1; - for (ap = as; ap < ae; ap++) - if (strncasecmp(*ap, name, n) == 0) - return(0); - return (1); -} - -#ifdef TERMCAP -char termbuf[1024]; - -/*ARGSUSED*/ -static int -setupterm(char *tname, int fd, int *errp) -{ - if (tgetent(termbuf, tname) == 1) { - termbuf[1023] = '\0'; - if (errp) - *errp = 1; - return(0); - } - if (errp) - *errp = 0; - return(-1); -} -#else -#define termbuf ttytype -extern char ttytype[]; -#endif - -int resettermname = 1; - -static const char * -gettermname(void) -{ - char *tname; - static const char **tnamep = 0; - static const char **next; - int err; - - if (resettermname) { - resettermname = 0; - if (tnamep && tnamep != unknown) - free(tnamep); - if ((tname = env_getvalue("TERM")) && - (setupterm(tname, 1, &err) == 0)) { - tnamep = mklist(termbuf, tname); - } else { - if (tname && (strlen(tname) <= 40)) { - unknown[0] = tname; - upcase(tname); - } else - unknown[0] = name_unknown; - tnamep = unknown; - } - next = tnamep; - } - if (*next == 0) - next = tnamep; - return(*next++); -} -/* - * suboption() - * - * Look at the sub-option buffer, and try to be helpful to the other - * side. - * - * Currently we recognize: - * - * Terminal type, send request. - * Terminal speed (send request). - * Local flow control (is request). - * Linemode - */ - -static void -suboption(void) -{ - unsigned char subchar; - - printsub('<', subbuffer, SB_LEN()+2); - switch (subchar = SB_GET()) { - case TELOPT_TTYPE: - if (my_want_state_is_wont(TELOPT_TTYPE)) - return; - if (SB_EOF() || SB_GET() != TELQUAL_SEND) { - return; - } else { - const char *name; - unsigned char temp[50]; - int len; - - name = gettermname(); - len = strlen(name) + 4 + 2; - if (len < NETROOM()) { - sprintf(temp, "%c%c%c%c%s%c%c", IAC, SB, TELOPT_TTYPE, - TELQUAL_IS, name, IAC, SE); - ring_supply_data(&netoring, temp, len); - printsub('>', &temp[2], len-2); - } else { - ExitString("No room in buffer for terminal type.\n", 1); - /*NOTREACHED*/ - } - } - break; - case TELOPT_TSPEED: - if (my_want_state_is_wont(TELOPT_TSPEED)) - return; - if (SB_EOF()) - return; - if (SB_GET() == TELQUAL_SEND) { - long ospeed, ispeed; - unsigned char temp[50]; - int len; - - TerminalSpeeds(&ispeed, &ospeed); - - sprintf((char *)temp, "%c%c%c%c%ld,%ld%c%c", IAC, SB, TELOPT_TSPEED, - TELQUAL_IS, ospeed, ispeed, IAC, SE); - len = strlen((char *)temp+4) + 4; /* temp[3] is 0 ... */ - - if (len < NETROOM()) { - ring_supply_data(&netoring, temp, len); - printsub('>', temp+2, len - 2); - } -/*@*/ else printf("lm_will: not enough room in buffer\n"); - } - break; - case TELOPT_LFLOW: - if (my_want_state_is_wont(TELOPT_LFLOW)) - return; - if (SB_EOF()) - return; - switch(SB_GET()) { - case LFLOW_RESTART_ANY: - restartany = 1; - break; - case LFLOW_RESTART_XON: - restartany = 0; - break; - case LFLOW_ON: - localflow = 1; - break; - case LFLOW_OFF: - localflow = 0; - break; - default: - return; - } - setcommandmode(); - setconnmode(0); - break; - - case TELOPT_LINEMODE: - if (my_want_state_is_wont(TELOPT_LINEMODE)) - return; - if (SB_EOF()) - return; - switch (SB_GET()) { - case WILL: - lm_will(subpointer, SB_LEN()); - break; - case WONT: - lm_wont(subpointer, SB_LEN()); - break; - case DO: - lm_do(subpointer, SB_LEN()); - break; - case DONT: - lm_dont(subpointer, SB_LEN()); - break; - case LM_SLC: - slc(subpointer, SB_LEN()); - break; - case LM_MODE: - lm_mode(subpointer, SB_LEN(), 0); - break; - default: - break; - } - break; - -#ifdef OLD_ENVIRON - case TELOPT_OLD_ENVIRON: -#endif - case TELOPT_NEW_ENVIRON: - if (SB_EOF()) - return; - switch(SB_PEEK()) { - case TELQUAL_IS: - case TELQUAL_INFO: - if (my_want_state_is_dont(subchar)) - return; - break; - case TELQUAL_SEND: - if (my_want_state_is_wont(subchar)) { - return; - } - break; - default: - return; - } - env_opt(subpointer, SB_LEN()); - break; - - case TELOPT_XDISPLOC: - if (my_want_state_is_wont(TELOPT_XDISPLOC)) - return; - if (SB_EOF()) - return; - if (SB_GET() == TELQUAL_SEND) { - unsigned char temp[50], *dp; - int len; - - if ((dp = env_getvalue("DISPLAY")) == NULL || - strlen(dp) > sizeof(temp) - 7) { - /* - * Something happened, we no longer have a DISPLAY - * variable. Or it is too long. So, turn off the option. - */ - send_wont(TELOPT_XDISPLOC, 1); - break; - } - snprintf(temp, sizeof(temp), "%c%c%c%c%s%c%c", IAC, SB, - TELOPT_XDISPLOC, TELQUAL_IS, dp, IAC, SE); - len = strlen((char *)temp+4) + 4; /* temp[3] is 0 ... */ - - if (len < NETROOM()) { - ring_supply_data(&netoring, temp, len); - printsub('>', temp+2, len - 2); - } -/*@*/ else printf("lm_will: not enough room in buffer\n"); - } - break; - - default: - break; - } -} - -static unsigned char str_lm[] = { IAC, SB, TELOPT_LINEMODE, 0, 0, IAC, SE }; - -void -lm_will(unsigned char *cmd, int len) -{ - if (len < 1) { -/*@*/ printf("lm_will: no command!!!\n"); /* Should not happen... */ - return; - } - switch(cmd[0]) { - case LM_FORWARDMASK: /* We shouldn't ever get this... */ - default: - str_lm[3] = DONT; - str_lm[4] = cmd[0]; - if (NETROOM() > (int)sizeof(str_lm)) { - ring_supply_data(&netoring, str_lm, sizeof(str_lm)); - printsub('>', &str_lm[2], sizeof(str_lm)-2); - } -/*@*/ else printf("lm_will: not enough room in buffer\n"); - break; - } -} - -void -lm_wont(unsigned char *cmd, int len) -{ - if (len < 1) { -/*@*/ printf("lm_wont: no command!!!\n"); /* Should not happen... */ - return; - } - switch(cmd[0]) { - case LM_FORWARDMASK: /* We shouldn't ever get this... */ - default: - /* We are always DONT, so don't respond */ - return; - } -} - -void -lm_do(unsigned char *cmd, int len) -{ - if (len < 1) { -/*@*/ printf("lm_do: no command!!!\n"); /* Should not happen... */ - return; - } - switch(cmd[0]) { - case LM_FORWARDMASK: - default: - str_lm[3] = WONT; - str_lm[4] = cmd[0]; - if (NETROOM() > (int)sizeof(str_lm)) { - ring_supply_data(&netoring, str_lm, sizeof(str_lm)); - printsub('>', &str_lm[2], sizeof(str_lm)-2); - } -/*@*/ else printf("lm_do: not enough room in buffer\n"); - break; - } -} - -void -lm_dont(unsigned char *cmd, int len) -{ - if (len < 1) { -/*@*/ printf("lm_dont: no command!!!\n"); /* Should not happen... */ - return; - } - switch(cmd[0]) { - case LM_FORWARDMASK: - default: - /* we are always WONT, so don't respond */ - break; - } -} - -static unsigned char str_lm_mode[] = { - IAC, SB, TELOPT_LINEMODE, LM_MODE, 0, IAC, SE -}; - -void -lm_mode(unsigned char *cmd, int len, int init) -{ - if (len != 1) - return; - if ((linemode&MODE_MASK&~MODE_ACK) == *cmd) - return; - if (*cmd&MODE_ACK) - return; - linemode = *cmd&(MODE_MASK&~MODE_ACK); - str_lm_mode[4] = linemode; - if (!init) - str_lm_mode[4] |= MODE_ACK; - if (NETROOM() > (int)sizeof(str_lm_mode)) { - ring_supply_data(&netoring, str_lm_mode, sizeof(str_lm_mode)); - printsub('>', &str_lm_mode[2], sizeof(str_lm_mode)-2); - } -/*@*/ else printf("lm_mode: not enough room in buffer\n"); - setconnmode(0); /* set changed mode */ -} - - - -/* - * slc() - * Handle special character suboption of LINEMODE. - */ - -struct spc { - cc_t val; - cc_t *valp; - char flags; /* Current flags & level */ - char mylevel; /* Maximum level & flags */ -} spc_data[NSLC+1]; - -#define SLC_IMPORT 0 -#define SLC_EXPORT 1 -#define SLC_RVALUE 2 -static int slc_mode = SLC_EXPORT; - -void -slc_init(void) -{ - struct spc *spcp; - - localchars = 1; - for (spcp = spc_data; spcp < &spc_data[NSLC+1]; spcp++) { - spcp->val = 0; - spcp->valp = 0; - spcp->flags = spcp->mylevel = SLC_NOSUPPORT; - } - -#define initfunc(func, flags) { \ - spcp = &spc_data[func]; \ - if ((spcp->valp = tcval(func))) { \ - spcp->val = *spcp->valp; \ - spcp->mylevel = SLC_VARIABLE|flags; \ - } else { \ - spcp->val = 0; \ - spcp->mylevel = SLC_DEFAULT; \ - } \ - } - - initfunc(SLC_SYNCH, 0); - /* No BRK */ - initfunc(SLC_AO, 0); - initfunc(SLC_AYT, 0); - /* No EOR */ - initfunc(SLC_ABORT, SLC_FLUSHIN|SLC_FLUSHOUT); - initfunc(SLC_EOF, 0); -#ifndef SYSV_TERMIO - initfunc(SLC_SUSP, SLC_FLUSHIN); -#endif - initfunc(SLC_EC, 0); - initfunc(SLC_EL, 0); -#ifndef SYSV_TERMIO - initfunc(SLC_EW, 0); - initfunc(SLC_RP, 0); - initfunc(SLC_LNEXT, 0); -#endif - initfunc(SLC_XON, 0); - initfunc(SLC_XOFF, 0); -#ifdef SYSV_TERMIO - spc_data[SLC_XON].mylevel = SLC_CANTCHANGE; - spc_data[SLC_XOFF].mylevel = SLC_CANTCHANGE; -#endif - initfunc(SLC_FORW1, 0); -#ifdef USE_TERMIO - initfunc(SLC_FORW2, 0); - /* No FORW2 */ -#endif - - initfunc(SLC_IP, SLC_FLUSHIN|SLC_FLUSHOUT); -#undef initfunc - - if (slc_mode == SLC_EXPORT) - slc_export(); - else - slc_import(1); - -} - -void -slcstate(void) -{ - printf("Special characters are %s values\n", - slc_mode == SLC_IMPORT ? "remote default" : - slc_mode == SLC_EXPORT ? "local" : - "remote"); -} - -void -slc_mode_export(void) -{ - slc_mode = SLC_EXPORT; - if (my_state_is_will(TELOPT_LINEMODE)) - slc_export(); -} - -void -slc_mode_import(int def) -{ - slc_mode = def ? SLC_IMPORT : SLC_RVALUE; - if (my_state_is_will(TELOPT_LINEMODE)) - slc_import(def); -} - -unsigned char slc_import_val[] = { - IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_VARIABLE, 0, IAC, SE -}; -unsigned char slc_import_def[] = { - IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_DEFAULT, 0, IAC, SE -}; - -void -slc_import(int def) -{ - if (NETROOM() > (int)sizeof(slc_import_val)) { - if (def) { - ring_supply_data(&netoring, slc_import_def, sizeof(slc_import_def)); - printsub('>', &slc_import_def[2], sizeof(slc_import_def)-2); - } else { - ring_supply_data(&netoring, slc_import_val, sizeof(slc_import_val)); - printsub('>', &slc_import_val[2], sizeof(slc_import_val)-2); - } - } -/*@*/ else printf("slc_import: not enough room\n"); -} - -void -slc_export(void) -{ - struct spc *spcp; - - TerminalDefaultChars(); - - slc_start_reply(); - for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) { - if (spcp->mylevel != SLC_NOSUPPORT) { - if (spcp->val == (cc_t)(_POSIX_VDISABLE)) - spcp->flags = SLC_NOSUPPORT; - else - spcp->flags = spcp->mylevel; - if (spcp->valp) - spcp->val = *spcp->valp; - slc_add_reply(spcp - spc_data, spcp->flags, spcp->val); - } - } - slc_end_reply(); - (void)slc_update(); - setconnmode(1); /* Make sure the character values are set */ -} - -void -slc(unsigned char *cp, int len) -{ - struct spc *spcp; - int func,level; - - slc_start_reply(); - - for (; len >= 3; len -=3, cp +=3) { - - func = cp[SLC_FUNC]; - - if (func == 0) { - /* - * Client side: always ignore 0 function. - */ - continue; - } - if (func > NSLC) { - if ((cp[SLC_FLAGS] & SLC_LEVELBITS) != SLC_NOSUPPORT) - slc_add_reply(func, SLC_NOSUPPORT, 0); - continue; - } - - spcp = &spc_data[func]; - - level = cp[SLC_FLAGS]&(SLC_LEVELBITS|SLC_ACK); - - if ((cp[SLC_VALUE] == (unsigned char)spcp->val) && - ((level&SLC_LEVELBITS) == (spcp->flags&SLC_LEVELBITS))) { - continue; - } - - if (level == (SLC_DEFAULT|SLC_ACK)) { - /* - * This is an error condition, the SLC_ACK - * bit should never be set for the SLC_DEFAULT - * level. Our best guess to recover is to - * ignore the SLC_ACK bit. - */ - cp[SLC_FLAGS] &= ~SLC_ACK; - } - - if (level == ((spcp->flags&SLC_LEVELBITS)|SLC_ACK)) { - spcp->val = (cc_t)cp[SLC_VALUE]; - spcp->flags = cp[SLC_FLAGS]; /* include SLC_ACK */ - continue; - } - - level &= ~SLC_ACK; - - if (level <= (spcp->mylevel&SLC_LEVELBITS)) { - spcp->flags = cp[SLC_FLAGS]|SLC_ACK; - spcp->val = (cc_t)cp[SLC_VALUE]; - } - if (level == SLC_DEFAULT) { - if ((spcp->mylevel&SLC_LEVELBITS) != SLC_DEFAULT) - spcp->flags = spcp->mylevel; - else - spcp->flags = SLC_NOSUPPORT; - } - slc_add_reply(func, spcp->flags, spcp->val); - } - slc_end_reply(); - if (slc_update()) - setconnmode(1); /* set the new character values */ -} - -void -slc_check(void) -{ - struct spc *spcp; - - slc_start_reply(); - for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) { - if (spcp->valp && spcp->val != *spcp->valp) { - spcp->val = *spcp->valp; - if (spcp->val == (cc_t)(_POSIX_VDISABLE)) - spcp->flags = SLC_NOSUPPORT; - else - spcp->flags = spcp->mylevel; - slc_add_reply(spcp - spc_data, spcp->flags, spcp->val); - } - } - slc_end_reply(); - setconnmode(1); -} - -unsigned char slc_reply[128]; -unsigned char *slc_replyp; - -void -slc_start_reply(void) -{ - slc_replyp = slc_reply; - *slc_replyp++ = IAC; - *slc_replyp++ = SB; - *slc_replyp++ = TELOPT_LINEMODE; - *slc_replyp++ = LM_SLC; -} - -void -slc_add_reply(unsigned char func, unsigned char flags, cc_t value) -{ - if ((*slc_replyp++ = func) == IAC) - *slc_replyp++ = IAC; - if ((*slc_replyp++ = flags) == IAC) - *slc_replyp++ = IAC; - if ((*slc_replyp++ = (unsigned char)value) == IAC) - *slc_replyp++ = IAC; -} - -void -slc_end_reply(void) -{ - int len; - - *slc_replyp++ = IAC; - *slc_replyp++ = SE; - len = slc_replyp - slc_reply; - if (len <= 6) - return; - if (NETROOM() > len) { - ring_supply_data(&netoring, slc_reply, slc_replyp - slc_reply); - printsub('>', &slc_reply[2], slc_replyp - slc_reply - 2); - } -/*@*/else printf("slc_end_reply: not enough room\n"); -} - -int -slc_update(void) -{ - struct spc *spcp; - int need_update = 0; - - for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) { - if (!(spcp->flags&SLC_ACK)) - continue; - spcp->flags &= ~SLC_ACK; - if (spcp->valp && (*spcp->valp != spcp->val)) { - *spcp->valp = spcp->val; - need_update = 1; - } - } - return(need_update); -} - -#ifdef OLD_ENVIRON -# ifdef ENV_HACK -/* - * Earlier version of telnet/telnetd from the BSD code had - * the definitions of VALUE and VAR reversed. To ensure - * maximum interoperability, we assume that the server is - * an older BSD server, until proven otherwise. The newer - * BSD servers should be able to handle either definition, - * so it is better to use the wrong values if we don't - * know what type of server it is. - */ -int env_auto = 1; -int old_env_var = OLD_ENV_VAR; -int old_env_value = OLD_ENV_VALUE; -# else -# define old_env_var OLD_ENV_VAR -# define old_env_value OLD_ENV_VALUE -# endif -#endif - -void -env_opt(unsigned char *buf, int len) -{ - unsigned char *ep = 0, *epc = 0; - int i; - - switch(buf[0]&0xff) { - case TELQUAL_SEND: - env_opt_start(); - if (len == 1) { - env_opt_add(NULL); - } else for (i = 1; i < len; i++) { - switch (buf[i]&0xff) { -#ifdef OLD_ENVIRON - case OLD_ENV_VAR: -# ifdef ENV_HACK - if (telopt_environ == TELOPT_OLD_ENVIRON - && env_auto) { - /* Server has the same definitions */ - old_env_var = OLD_ENV_VAR; - old_env_value = OLD_ENV_VALUE; - } - /* FALLTHROUGH */ -# endif - case OLD_ENV_VALUE: - /* - * Although OLD_ENV_VALUE is not legal, we will - * still recognize it, just in case it is an - * old server that has VAR & VALUE mixed up... - */ - /* FALLTHROUGH */ -#else - case NEW_ENV_VAR: -#endif - case ENV_USERVAR: - if (ep) { - *epc = 0; - env_opt_add(ep); - } - ep = epc = &buf[i+1]; - break; - case ENV_ESC: - i++; - /*FALLTHROUGH*/ - default: - if (epc) - *epc++ = buf[i]; - break; - } - } - if (ep) { - *epc = 0; - env_opt_add(ep); - } - env_opt_end(1); - break; - - case TELQUAL_IS: - case TELQUAL_INFO: - /* Ignore for now. We shouldn't get it anyway. */ - break; - - default: - break; - } -} - -#define OPT_REPLY_SIZE 256 -unsigned char *opt_reply; -unsigned char *opt_replyp; -unsigned char *opt_replyend; - -void -env_opt_start(void) -{ - if (opt_reply) - opt_reply = (unsigned char *)realloc(opt_reply, OPT_REPLY_SIZE); - else - opt_reply = (unsigned char *)malloc(OPT_REPLY_SIZE); - if (opt_reply == NULL) { -/*@*/ printf("env_opt_start: malloc()/realloc() failed!!!\n"); - opt_reply = opt_replyp = opt_replyend = NULL; - return; - } - opt_replyp = opt_reply; - opt_replyend = opt_reply + OPT_REPLY_SIZE; - *opt_replyp++ = IAC; - *opt_replyp++ = SB; - *opt_replyp++ = telopt_environ; - *opt_replyp++ = TELQUAL_IS; -} - -void -env_opt_start_info(void) -{ - env_opt_start(); - if (opt_replyp) - opt_replyp[-1] = TELQUAL_INFO; -} - -void -env_opt_add(unsigned char *ep) -{ - unsigned char *vp, c; - - if (opt_reply == NULL) /*XXX*/ - return; /*XXX*/ - - if (ep == NULL || *ep == '\0') { - /* Send user defined variables first. */ - env_default(1, 0); - while ((ep = env_default(0, 0))) - env_opt_add(ep); - - /* Now add the list of well know variables. */ - env_default(1, 1); - while ((ep = env_default(0, 1))) - env_opt_add(ep); - return; - } - vp = env_getvalue(ep); - if (opt_replyp + (vp ? strlen((char *)vp) : 0) + - strlen((char *)ep) + 6 > opt_replyend) - { - int len; - opt_replyend += OPT_REPLY_SIZE; - len = opt_replyend - opt_reply; - opt_reply = (unsigned char *)realloc(opt_reply, len); - if (opt_reply == NULL) { -/*@*/ printf("env_opt_add: realloc() failed!!!\n"); - opt_reply = opt_replyp = opt_replyend = NULL; - return; - } - opt_replyp = opt_reply + len - (opt_replyend - opt_replyp); - opt_replyend = opt_reply + len; - } - if (opt_welldefined(ep)) -#ifdef OLD_ENVIRON - if (telopt_environ == TELOPT_OLD_ENVIRON) - *opt_replyp++ = old_env_var; - else -#endif - *opt_replyp++ = NEW_ENV_VAR; - else - *opt_replyp++ = ENV_USERVAR; - for (;;) { - while ((c = *ep++)) { - switch(c&0xff) { - case IAC: - *opt_replyp++ = IAC; - break; - case NEW_ENV_VAR: - case NEW_ENV_VALUE: - case ENV_ESC: - case ENV_USERVAR: - *opt_replyp++ = ENV_ESC; - break; - } - *opt_replyp++ = c; - } - if ((ep = vp)) { -#ifdef OLD_ENVIRON - if (telopt_environ == TELOPT_OLD_ENVIRON) - *opt_replyp++ = old_env_value; - else -#endif - *opt_replyp++ = NEW_ENV_VALUE; - vp = NULL; - } else - break; - } -} - -int -opt_welldefined(const char *ep) -{ - if ((strcmp(ep, "USER") == 0) || - (strcmp(ep, "DISPLAY") == 0) || - (strcmp(ep, "PRINTER") == 0) || - (strcmp(ep, "SYSTEMTYPE") == 0) || - (strcmp(ep, "JOB") == 0) || - (strcmp(ep, "ACCT") == 0)) - return(1); - return(0); -} - -void -env_opt_end(int emptyok) -{ - int len; - - len = opt_replyp - opt_reply + 2; - if (emptyok || len > 6) { - *opt_replyp++ = IAC; - *opt_replyp++ = SE; - if (NETROOM() > len) { - ring_supply_data(&netoring, opt_reply, len); - printsub('>', &opt_reply[2], len - 2); - } -/*@*/ else printf("slc_end_reply: not enough room\n"); - } - if (opt_reply) { - free(opt_reply); - opt_reply = opt_replyp = opt_replyend = NULL; - } -} - - - -int -telrcv(void) -{ - int c; - int scc; - unsigned char *sbp; - int count; - int returnValue = 0; - - scc = 0; - count = 0; - while (TTYROOM() > 2) { - if (scc == 0) { - if (count) { - ring_consumed(&netiring, count); - returnValue = 1; - count = 0; - } - sbp = netiring.consume; - scc = ring_full_consecutive(&netiring); - if (scc == 0) { - /* No more data coming in */ - break; - } - } - - c = *sbp++ & 0xff, scc--; count++; - - switch (telrcv_state) { - - case TS_CR: - telrcv_state = TS_DATA; - if (c == '\0') { - break; /* Ignore \0 after CR */ - } - else if ((c == '\n') && my_want_state_is_dont(TELOPT_ECHO) && !crmod) { - TTYADD(c); - break; - } - /* FALLTHROUGH */ - - case TS_DATA: - if (c == IAC) { - telrcv_state = TS_IAC; - break; - } - /* - * The 'crmod' hack (see following) is needed - * since we can't * set CRMOD on output only. - * Machines like MULTICS like to send \r without - * \n; since we must turn off CRMOD to get proper - * input, the mapping is done here (sigh). - */ - if ((c == '\r') && my_want_state_is_dont(TELOPT_BINARY)) { - if (scc > 0) { - c = *sbp&0xff; - if (c == 0) { - sbp++, scc--; count++; - /* a "true" CR */ - TTYADD('\r'); - } else if (my_want_state_is_dont(TELOPT_ECHO) && - (c == '\n')) { - sbp++, scc--; count++; - TTYADD('\n'); - } else { - - TTYADD('\r'); - if (crmod) { - TTYADD('\n'); - } - } - } else { - telrcv_state = TS_CR; - TTYADD('\r'); - if (crmod) { - TTYADD('\n'); - } - } - } else { - TTYADD(c); - } - continue; - - case TS_IAC: -process_iac: - switch (c) { - - case WILL: - telrcv_state = TS_WILL; - continue; - - case WONT: - telrcv_state = TS_WONT; - continue; - - case DO: - telrcv_state = TS_DO; - continue; - - case DONT: - telrcv_state = TS_DONT; - continue; - - case DM: - /* - * We may have missed an urgent notification, - * so make sure we flush whatever is in the - * buffer currently. - */ - printoption("RCVD", IAC, DM); - SYNCHing = 1; - (void) ttyflush(1); - SYNCHing = stilloob(); - settimer(gotDM); - break; - - case SB: - SB_CLEAR(); - telrcv_state = TS_SB; - continue; - - case IAC: - TTYADD(IAC); - break; - - case NOP: - case GA: - default: - printoption("RCVD", IAC, c); - break; - } - telrcv_state = TS_DATA; - continue; - - case TS_WILL: - printoption("RCVD", WILL, c); - willoption(c); - telrcv_state = TS_DATA; - continue; - - case TS_WONT: - printoption("RCVD", WONT, c); - wontoption(c); - telrcv_state = TS_DATA; - continue; - - case TS_DO: - printoption("RCVD", DO, c); - dooption(c); - if (c == TELOPT_NAWS) { - sendnaws(); - } else if (c == TELOPT_LFLOW) { - localflow = 1; - setcommandmode(); - setconnmode(0); - } - telrcv_state = TS_DATA; - continue; - - case TS_DONT: - printoption("RCVD", DONT, c); - dontoption(c); - flushline = 1; - setconnmode(0); /* set new tty mode (maybe) */ - telrcv_state = TS_DATA; - continue; - - case TS_SB: - if (c == IAC) { - telrcv_state = TS_SE; - } else { - SB_ACCUM(c); - } - continue; - - case TS_SE: - if (c != SE) { - if (c != IAC) { - /* - * This is an error. We only expect to get - * "IAC IAC" or "IAC SE". Several things may - * have happend. An IAC was not doubled, the - * IAC SE was left off, or another option got - * inserted into the suboption are all possibilities. - * If we assume that the IAC was not doubled, - * and really the IAC SE was left off, we could - * get into an infinate loop here. So, instead, - * we terminate the suboption, and process the - * partial suboption if we can. - */ - SB_ACCUM(IAC); - SB_ACCUM(c); - subpointer -= 2; - SB_TERM(); - - printoption("In SUBOPTION processing, RCVD", IAC, c); - suboption(); /* handle sub-option */ - telrcv_state = TS_IAC; - goto process_iac; - } - SB_ACCUM(c); - telrcv_state = TS_SB; - } else { - SB_ACCUM(IAC); - SB_ACCUM(SE); - subpointer -= 2; - SB_TERM(); - suboption(); /* handle sub-option */ - telrcv_state = TS_DATA; - } - } - } - if (count) - ring_consumed(&netiring, count); - return returnValue||count; -} - -static int bol = 1, local = 0; - -int -rlogin_susp(void) -{ - if (local) { - local = 0; - bol = 1; - command(0, "z\n", 2); - return(1); - } - return(0); -} - -static int -telsnd(void) -{ - int tcc; - int count; - int returnValue = 0; - unsigned char *tbp; - - tcc = 0; - count = 0; - while (NETROOM() > 2) { - int sc; - int c; - - if (tcc == 0) { - if (count) { - ring_consumed(&ttyiring, count); - returnValue = 1; - count = 0; - } - tbp = ttyiring.consume; - tcc = ring_full_consecutive(&ttyiring); - if (tcc == 0) { - break; - } - } - c = *tbp++ & 0xff, sc = strip(c), tcc--; count++; - if (rlogin != _POSIX_VDISABLE) { - if (bol) { - bol = 0; - if (sc == rlogin) { - local = 1; - continue; - } - } else if (local) { - local = 0; - if (sc == '.' || c == termEofChar) { - bol = 1; - command(0, "close\n", 6); - continue; - } - if (sc == termSuspChar) { - bol = 1; - command(0, "z\n", 2); - continue; - } - if (sc == escape) { - command(0, tbp, tcc); - bol = 1; - count += tcc; - tcc = 0; - flushline = 1; - break; - } - if (sc != rlogin) { - ++tcc; - --tbp; - --count; - c = sc = rlogin; - } - } - if ((sc == '\n') || (sc == '\r')) - bol = 1; - } else if (escape != _POSIX_VDISABLE && sc == escape) { - /* - * Double escape is a pass through of a single escape character. - */ - if (tcc && strip(*tbp) == escape) { - tbp++; - tcc--; - count++; - bol = 0; - } else { - command(0, (char *)tbp, tcc); - bol = 1; - count += tcc; - tcc = 0; - flushline = 1; - break; - } - } else - bol = 0; -#ifdef KLUDGELINEMODE - if (kludgelinemode && (globalmode&MODE_EDIT) && (sc == echoc)) { - if (tcc > 0 && strip(*tbp) == echoc) { - tcc--; tbp++; count++; - } else { - dontlecho = !dontlecho; - settimer(echotoggle); - setconnmode(0); - flushline = 1; - break; - } - } -#endif - if (MODE_LOCAL_CHARS(globalmode)) { - if (TerminalSpecialChars(sc) == 0) { - bol = 1; - break; - } - } - if (my_want_state_is_wont(TELOPT_BINARY)) { - switch (c) { - case '\n': - /* - * If we are in CRMOD mode (\r ==> \n) - * on our local machine, then probably - * a newline (unix) is CRLF (TELNET). - */ - if (MODE_LOCAL_CHARS(globalmode)) { - NETADD('\r'); - } - NETADD('\n'); - bol = flushline = 1; - break; - case '\r': - if (!crlf) { - NET2ADD('\r', '\0'); - } else { - NET2ADD('\r', '\n'); - } - bol = flushline = 1; - break; - case IAC: - NET2ADD(IAC, IAC); - break; - default: - NETADD(c); - break; - } - } else if (c == IAC) { - NET2ADD(IAC, IAC); - } else { - NETADD(c); - } - } - if (count) - ring_consumed(&ttyiring, count); - return returnValue||count; /* Non-zero if we did anything */ -} - -/* - * Scheduler() - * - * Try to do something. - * - * If we do something useful, return 1; else return 0. - * - */ - -static int -Scheduler(int block) -{ - /* One wants to be a bit careful about setting returnValue - * to one, since a one implies we did some useful work, - * and therefore probably won't be called to block next - */ - int returnValue; - int netin, netout, netex, ttyin, ttyout; - - /* Decide which rings should be processed */ - - netout = ring_full_count(&netoring) && - (flushline || - (my_want_state_is_wont(TELOPT_LINEMODE) -#ifdef KLUDGELINEMODE - && (!kludgelinemode || my_want_state_is_do(TELOPT_SGA)) -#endif - ) || - my_want_state_is_will(TELOPT_BINARY)); - ttyout = ring_full_count(&ttyoring); - - ttyin = ring_empty_count(&ttyiring) && (clienteof == 0); - - netin = !ISend && ring_empty_count(&netiring); - - netex = !SYNCHing; - - /* Call to system code to process rings */ - - returnValue = process_rings(netin, netout, netex, ttyin, ttyout, !block); - - /* Now, look at the input rings, looking for work to do. */ - - if (ring_full_count(&ttyiring)) { - returnValue |= telsnd(); - } - - if (ring_full_count(&netiring)) { - returnValue |= telrcv(); - } - return returnValue; -} - -#define __unusedhere __unused -/* - * Select from tty and network... - */ -void -telnet(char *user __unusedhere) -{ - sys_telnet_init(); - - if (telnetport) { - send_do(TELOPT_SGA, 1); - send_will(TELOPT_TTYPE, 1); - send_will(TELOPT_NAWS, 1); - send_will(TELOPT_TSPEED, 1); - send_will(TELOPT_LFLOW, 1); - send_will(TELOPT_LINEMODE, 1); - send_will(TELOPT_NEW_ENVIRON, 1); - send_do(TELOPT_STATUS, 1); - if (env_getvalue("DISPLAY")) - send_will(TELOPT_XDISPLOC, 1); - if (eight) - tel_enter_binary(eight); - } - - for (;;) { - int schedValue; - - while ((schedValue = Scheduler(0)) != 0) { - if (schedValue == -1) { - setcommandmode(); - return; - } - } - - if (Scheduler(1) == -1) { - setcommandmode(); - return; - } - } -} - -#if 0 /* XXX - this not being in is a bug */ -/* - * nextitem() - * - * Return the address of the next "item" in the TELNET data - * stream. This will be the address of the next character if - * the current address is a user data character, or it will - * be the address of the character following the TELNET command - * if the current address is a TELNET IAC ("I Am a Command") - * character. - */ - -static char * -nextitem(char *current) -{ - if ((*current&0xff) != IAC) { - return current+1; - } - switch (*(current+1)&0xff) { - case DO: - case DONT: - case WILL: - case WONT: - return current+3; - case SB: /* loop forever looking for the SE */ - { - char *look = current+2; - - for (;;) { - if ((*look++&0xff) == IAC) { - if ((*look++&0xff) == SE) { - return look; - } - } - } - } - default: - return current+2; - } -} -#endif /* 0 */ - -/* - * netclear() - * - * We are about to do a TELNET SYNCH operation. Clear - * the path to the network. - * - * Things are a bit tricky since we may have sent the first - * byte or so of a previous TELNET command into the network. - * So, we have to scan the network buffer from the beginning - * until we are up to where we want to be. - * - * A side effect of what we do, just to keep things - * simple, is to clear the urgent data pointer. The principal - * caller should be setting the urgent data pointer AFTER calling - * us in any case. - */ - -static void -netclear(void) -{ - /* Deleted */ -} - -/* - * These routines add various telnet commands to the data stream. - */ - -static void -doflush(void) -{ - NET2ADD(IAC, DO); - NETADD(TELOPT_TM); - flushline = 1; - flushout = 1; - (void) ttyflush(1); /* Flush/drop output */ - /* do printoption AFTER flush, otherwise the output gets tossed... */ - printoption("SENT", DO, TELOPT_TM); -} - -void -xmitAO(void) -{ - NET2ADD(IAC, AO); - printoption("SENT", IAC, AO); - if (autoflush) { - doflush(); - } -} - -void -xmitEL(void) -{ - NET2ADD(IAC, EL); - printoption("SENT", IAC, EL); -} - -void -xmitEC(void) -{ - NET2ADD(IAC, EC); - printoption("SENT", IAC, EC); -} - -int -dosynch(char *ch __unused) -{ - netclear(); /* clear the path to the network */ - NETADD(IAC); - setneturg(); - NETADD(DM); - printoption("SENT", IAC, DM); - return 1; -} - -int want_status_response = 0; - -int -get_status(char *ch __unused) -{ - unsigned char tmp[16]; - unsigned char *cp; - - if (my_want_state_is_dont(TELOPT_STATUS)) { - printf("Remote side does not support STATUS option\n"); - return 0; - } - cp = tmp; - - *cp++ = IAC; - *cp++ = SB; - *cp++ = TELOPT_STATUS; - *cp++ = TELQUAL_SEND; - *cp++ = IAC; - *cp++ = SE; - if (NETROOM() >= cp - tmp) { - ring_supply_data(&netoring, tmp, cp-tmp); - printsub('>', tmp+2, cp - tmp - 2); - } - ++want_status_response; - return 1; -} - -void -intp(void) -{ - NET2ADD(IAC, IP); - printoption("SENT", IAC, IP); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(NULL); - } -} - -void -sendbrk(void) -{ - NET2ADD(IAC, BREAK); - printoption("SENT", IAC, BREAK); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(NULL); - } -} - -void -sendabort(void) -{ - NET2ADD(IAC, ABORT); - printoption("SENT", IAC, ABORT); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(NULL); - } -} - -void -sendsusp(void) -{ - NET2ADD(IAC, SUSP); - printoption("SENT", IAC, SUSP); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(NULL); - } -} - -void -sendeof(void) -{ - NET2ADD(IAC, xEOF); - printoption("SENT", IAC, xEOF); -} - -void -sendayt(void) -{ - NET2ADD(IAC, AYT); - printoption("SENT", IAC, AYT); -} - -/* - * Send a window size update to the remote system. - */ - -void -sendnaws(void) -{ - long rows, cols; - unsigned char tmp[16]; - unsigned char *cp; - - if (my_state_is_wont(TELOPT_NAWS)) - return; - -#define PUTSHORT(cp, x) { if ((*cp++ = ((x)>>8)&0xff) == IAC) *cp++ = IAC; \ - if ((*cp++ = ((x))&0xff) == IAC) *cp++ = IAC; } - - if (TerminalWindowSize(&rows, &cols) == 0) { /* Failed */ - return; - } - - cp = tmp; - - *cp++ = IAC; - *cp++ = SB; - *cp++ = TELOPT_NAWS; - PUTSHORT(cp, cols); - PUTSHORT(cp, rows); - *cp++ = IAC; - *cp++ = SE; - if (NETROOM() >= cp - tmp) { - ring_supply_data(&netoring, tmp, cp-tmp); - printsub('>', tmp+2, cp - tmp - 2); - } -} - -void -tel_enter_binary(int rw) -{ - if (rw&1) - send_do(TELOPT_BINARY, 1); - if (rw&2) - send_will(TELOPT_BINARY, 1); -} - -void -tel_leave_binary(int rw) -{ - if (rw&1) - send_dont(TELOPT_BINARY, 1); - if (rw&2) - send_wont(TELOPT_BINARY, 1); -} diff --git a/usr.bin/telnet/terminal.c b/usr.bin/telnet/terminal.c deleted file mode 100644 index bea4e4d..0000000 --- a/usr.bin/telnet/terminal.c +++ /dev/null @@ -1,222 +0,0 @@ -/* - * Copyright (c) 1988, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)terminal.c 8.2 (Berkeley) 2/16/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <arpa/telnet.h> -#include <sys/types.h> - -#include <stdlib.h> - -#include "ring.h" - -#include "externs.h" -#include "types.h" - - -Ring ttyoring, ttyiring; -unsigned char ttyobuf[2*BUFSIZ], ttyibuf[BUFSIZ]; - -int termdata; /* Debugging flag */ - -#ifdef USE_TERMIO -# ifndef VDISCARD -cc_t termFlushChar; -# endif -# ifndef VLNEXT -cc_t termLiteralNextChar; -# endif -# ifndef VSUSP -cc_t termSuspChar; -# endif -# ifndef VWERASE -cc_t termWerasChar; -# endif -# ifndef VREPRINT -cc_t termRprntChar; -# endif -# ifndef VSTART -cc_t termStartChar; -# endif -# ifndef VSTOP -cc_t termStopChar; -# endif -# ifndef VEOL -cc_t termForw1Char; -# endif -# ifndef VEOL2 -cc_t termForw2Char; -# endif -# ifndef VSTATUS -cc_t termAytChar; -# endif -#else -cc_t termForw2Char; -cc_t termAytChar; -#endif - -/* - * initialize the terminal data structures. - */ - -void -init_terminal(void) -{ - if (ring_init(&ttyoring, ttyobuf, sizeof ttyobuf) != 1) { - exit(1); - } - if (ring_init(&ttyiring, ttyibuf, sizeof ttyibuf) != 1) { - exit(1); - } - autoflush = TerminalAutoFlush(); -} - -/* - * Send as much data as possible to the terminal. - * - * Return value: - * -1: No useful work done, data waiting to go out. - * 0: No data was waiting, so nothing was done. - * 1: All waiting data was written out. - * n: All data - n was written out. - */ - -int -ttyflush(int drop) -{ - int n, n0, n1; - - n0 = ring_full_count(&ttyoring); - if ((n1 = n = ring_full_consecutive(&ttyoring)) > 0) { - if (drop) { - TerminalFlushOutput(); - /* we leave 'n' alone! */ - } else { - n = TerminalWrite(ttyoring.consume, n); - } - } - if (n > 0) { - if (termdata && n) { - Dump('>', ttyoring.consume, n); - } - /* - * If we wrote everything, and the full count is - * larger than what we wrote, then write the - * rest of the buffer. - */ - if (n1 == n && n0 > n) { - n1 = n0 - n; - if (!drop) - n1 = TerminalWrite(ttyoring.bottom, n1); - if (n1 > 0) - n += n1; - } - ring_consumed(&ttyoring, n); - } - if (n < 0) - return -1; - if (n == n0) { - if (n0) - return -1; - return 0; - } - return n0 - n + 1; -} - - -/* - * These routines decides on what the mode should be (based on the values - * of various global variables). - */ - - -int -getconnmode(void) -{ - extern int linemode; - int mode = 0; -#ifdef KLUDGELINEMODE - extern int kludgelinemode; -#endif - - if (my_want_state_is_dont(TELOPT_ECHO)) - mode |= MODE_ECHO; - - if (localflow) - mode |= MODE_FLOW; - - if (my_want_state_is_will(TELOPT_BINARY)) - mode |= MODE_INBIN; - - if (his_want_state_is_will(TELOPT_BINARY)) - mode |= MODE_OUTBIN; - -#ifdef KLUDGELINEMODE - if (kludgelinemode) { - if (my_want_state_is_dont(TELOPT_SGA)) { - mode |= (MODE_TRAPSIG|MODE_EDIT); - if (dontlecho && (clocks.echotoggle > clocks.modenegotiated)) { - mode &= ~MODE_ECHO; - } - } - return(mode); - } -#endif - if (my_want_state_is_will(TELOPT_LINEMODE)) - mode |= linemode; - return(mode); -} - -void -setconnmode(int force) -{ - int newmode; - - newmode = getconnmode()|(force?MODE_FORCE:0); - - TerminalNewMode(newmode); - - -} - -void -setcommandmode(void) -{ - TerminalNewMode(-1); -} diff --git a/usr.bin/telnet/types.h b/usr.bin/telnet/types.h deleted file mode 100644 index 191d311..0000000 --- a/usr.bin/telnet/types.h +++ /dev/null @@ -1,52 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)types.h 8.1 (Berkeley) 6/6/93 - */ - -typedef struct { - char *modedescriptions; - char modetype; -} Modelist; - -extern Modelist modelist[]; - -typedef struct { - int - system, /* what the current time is */ - echotoggle, /* last time user entered echo character */ - modenegotiated, /* last time operating mode negotiated */ - didnetreceive, /* last time we read data from network */ - gotDM; /* when did we last see a data mark */ -} Clocks; - -extern Clocks clocks; diff --git a/usr.bin/telnet/utilities.c b/usr.bin/telnet/utilities.c deleted file mode 100644 index d1eb8a8..0000000 --- a/usr.bin/telnet/utilities.c +++ /dev/null @@ -1,767 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static const char sccsid[] = "@(#)utilities.c 8.3 (Berkeley) 5/30/95"; -#endif -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#define TELOPTS -#define TELCMDS -#define SLC_NAMES -#include <arpa/telnet.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <ctype.h> -#include <stdlib.h> -#include <unistd.h> - -#include "general.h" - -#include "fdset.h" - -#include "ring.h" - -#include "defines.h" - -#include "externs.h" - - -FILE *NetTrace = 0; /* Not in bss, since needs to stay */ -int prettydump; - -/* - * upcase() - * - * Upcase (in place) the argument. - */ - -void -upcase(char *argument) -{ - int c; - - while ((c = *argument) != 0) { - if (islower(c)) { - *argument = toupper(c); - } - argument++; - } -} - -/* - * SetSockOpt() - * - * Compensate for differences in 4.2 and 4.3 systems. - */ - -int -SetSockOpt(int fd, int level, int option, int yesno) -{ - return setsockopt(fd, level, option, - (char *)&yesno, sizeof yesno); -} - -/* - * The following are routines used to print out debugging information. - */ - -unsigned char NetTraceFile[256] = "(standard output)"; - -void -SetNetTrace(char *file) -{ - if (NetTrace && NetTrace != stdout) - fclose(NetTrace); - if (file && (strcmp(file, "-") != 0)) { - NetTrace = fopen(file, "w"); - if (NetTrace) { - strcpy((char *)NetTraceFile, file); - return; - } - fprintf(stderr, "Cannot open %s.\n", file); - } - NetTrace = stdout; - strcpy((char *)NetTraceFile, "(standard output)"); -} - -void -Dump(char direction, unsigned char *buffer, int length) -{ -# define BYTES_PER_LINE 32 -# define min(x,y) ((x<y)? x:y) - unsigned char *pThis; - int offset; - - offset = 0; - - while (length) { - /* print one line */ - fprintf(NetTrace, "%c 0x%x\t", direction, offset); - pThis = buffer; - if (prettydump) { - buffer = buffer + min(length, BYTES_PER_LINE/2); - while (pThis < buffer) { - fprintf(NetTrace, "%c%.2x", - (((*pThis)&0xff) == 0xff) ? '*' : ' ', - (*pThis)&0xff); - pThis++; - } - length -= BYTES_PER_LINE/2; - offset += BYTES_PER_LINE/2; - } else { - buffer = buffer + min(length, BYTES_PER_LINE); - while (pThis < buffer) { - fprintf(NetTrace, "%.2x", (*pThis)&0xff); - pThis++; - } - length -= BYTES_PER_LINE; - offset += BYTES_PER_LINE; - } - if (NetTrace == stdout) { - fprintf(NetTrace, "\r\n"); - } else { - fprintf(NetTrace, "\n"); - } - if (length < 0) { - fflush(NetTrace); - return; - } - /* find next unique line */ - } - fflush(NetTrace); -} - - -void -printoption(const char *direction, int cmd, int option) -{ - if (!showoptions) - return; - if (cmd == IAC) { - if (TELCMD_OK(option)) - fprintf(NetTrace, "%s IAC %s", direction, TELCMD(option)); - else - fprintf(NetTrace, "%s IAC %d", direction, option); - } else { - const char *fmt; - fmt = (cmd == WILL) ? "WILL" : (cmd == WONT) ? "WONT" : - (cmd == DO) ? "DO" : (cmd == DONT) ? "DONT" : 0; - if (fmt) { - fprintf(NetTrace, "%s %s ", direction, fmt); - if (TELOPT_OK(option)) - fprintf(NetTrace, "%s", TELOPT(option)); - else if (option == TELOPT_EXOPL) - fprintf(NetTrace, "EXOPL"); - else - fprintf(NetTrace, "%d", option); - } else - fprintf(NetTrace, "%s %d %d", direction, cmd, option); - } - if (NetTrace == stdout) { - fprintf(NetTrace, "\r\n"); - fflush(NetTrace); - } else { - fprintf(NetTrace, "\n"); - } - return; -} - -void -optionstatus(void) -{ - int i; - extern char will_wont_resp[], do_dont_resp[]; - - for (i = 0; i < 256; i++) { - if (do_dont_resp[i]) { - if (TELOPT_OK(i)) - printf("resp DO_DONT %s: %d\n", TELOPT(i), do_dont_resp[i]); - else if (TELCMD_OK(i)) - printf("resp DO_DONT %s: %d\n", TELCMD(i), do_dont_resp[i]); - else - printf("resp DO_DONT %d: %d\n", i, - do_dont_resp[i]); - if (my_want_state_is_do(i)) { - if (TELOPT_OK(i)) - printf("want DO %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf("want DO %s\n", TELCMD(i)); - else - printf("want DO %d\n", i); - } else { - if (TELOPT_OK(i)) - printf("want DONT %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf("want DONT %s\n", TELCMD(i)); - else - printf("want DONT %d\n", i); - } - } else { - if (my_state_is_do(i)) { - if (TELOPT_OK(i)) - printf(" DO %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf(" DO %s\n", TELCMD(i)); - else - printf(" DO %d\n", i); - } - } - if (will_wont_resp[i]) { - if (TELOPT_OK(i)) - printf("resp WILL_WONT %s: %d\n", TELOPT(i), will_wont_resp[i]); - else if (TELCMD_OK(i)) - printf("resp WILL_WONT %s: %d\n", TELCMD(i), will_wont_resp[i]); - else - printf("resp WILL_WONT %d: %d\n", - i, will_wont_resp[i]); - if (my_want_state_is_will(i)) { - if (TELOPT_OK(i)) - printf("want WILL %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf("want WILL %s\n", TELCMD(i)); - else - printf("want WILL %d\n", i); - } else { - if (TELOPT_OK(i)) - printf("want WONT %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf("want WONT %s\n", TELCMD(i)); - else - printf("want WONT %d\n", i); - } - } else { - if (my_state_is_will(i)) { - if (TELOPT_OK(i)) - printf(" WILL %s\n", TELOPT(i)); - else if (TELCMD_OK(i)) - printf(" WILL %s\n", TELCMD(i)); - else - printf(" WILL %d\n", i); - } - } - } - -} - -void -printsub(char direction, unsigned char *pointer, int length) -{ - int i; - extern int want_status_response; - - if (showoptions || direction == 0 || - (want_status_response && (pointer[0] == TELOPT_STATUS))) { - if (direction) { - fprintf(NetTrace, "%s IAC SB ", - (direction == '<')? "RCVD":"SENT"); - if (length >= 3) { - int j; - - i = pointer[length-2]; - j = pointer[length-1]; - - if (i != IAC || j != SE) { - fprintf(NetTrace, "(terminated by "); - if (TELOPT_OK(i)) - fprintf(NetTrace, "%s ", TELOPT(i)); - else if (TELCMD_OK(i)) - fprintf(NetTrace, "%s ", TELCMD(i)); - else - fprintf(NetTrace, "%d ", i); - if (TELOPT_OK(j)) - fprintf(NetTrace, "%s", TELOPT(j)); - else if (TELCMD_OK(j)) - fprintf(NetTrace, "%s", TELCMD(j)); - else - fprintf(NetTrace, "%d", j); - fprintf(NetTrace, ", not IAC SE!) "); - } - } - length -= 2; - } - if (length < 1) { - fprintf(NetTrace, "(Empty suboption??\?)"); - if (NetTrace == stdout) - fflush(NetTrace); - return; - } - switch (pointer[0]) { - case TELOPT_TTYPE: - fprintf(NetTrace, "TERMINAL-TYPE "); - switch (pointer[1]) { - case TELQUAL_IS: - fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2); - break; - case TELQUAL_SEND: - fprintf(NetTrace, "SEND"); - break; - default: - fprintf(NetTrace, - "- unknown qualifier %d (0x%x).", - pointer[1], pointer[1]); - } - break; - case TELOPT_TSPEED: - fprintf(NetTrace, "TERMINAL-SPEED"); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case TELQUAL_IS: - fprintf(NetTrace, " IS "); - fprintf(NetTrace, "%.*s", length-2, (char *)pointer+2); - break; - default: - if (pointer[1] == 1) - fprintf(NetTrace, " SEND"); - else - fprintf(NetTrace, " %d (unknown)", pointer[1]); - for (i = 2; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - } - break; - - case TELOPT_LFLOW: - fprintf(NetTrace, "TOGGLE-FLOW-CONTROL"); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case LFLOW_OFF: - fprintf(NetTrace, " OFF"); break; - case LFLOW_ON: - fprintf(NetTrace, " ON"); break; - case LFLOW_RESTART_ANY: - fprintf(NetTrace, " RESTART-ANY"); break; - case LFLOW_RESTART_XON: - fprintf(NetTrace, " RESTART-XON"); break; - default: - fprintf(NetTrace, " %d (unknown)", pointer[1]); - } - for (i = 2; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - - case TELOPT_NAWS: - fprintf(NetTrace, "NAWS"); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - if (length == 2) { - fprintf(NetTrace, " ?%d?", pointer[1]); - break; - } - fprintf(NetTrace, " %d %d (%d)", - pointer[1], pointer[2], - (int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2]))); - if (length == 4) { - fprintf(NetTrace, " ?%d?", pointer[3]); - break; - } - fprintf(NetTrace, " %d %d (%d)", - pointer[3], pointer[4], - (int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4]))); - for (i = 5; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - - - - case TELOPT_LINEMODE: - fprintf(NetTrace, "LINEMODE "); - if (length < 2) { - fprintf(NetTrace, " (empty suboption??\?)"); - break; - } - switch (pointer[1]) { - case WILL: - fprintf(NetTrace, "WILL "); - goto common; - case WONT: - fprintf(NetTrace, "WONT "); - goto common; - case DO: - fprintf(NetTrace, "DO "); - goto common; - case DONT: - fprintf(NetTrace, "DONT "); - common: - if (length < 3) { - fprintf(NetTrace, "(no option??\?)"); - break; - } - switch (pointer[2]) { - case LM_FORWARDMASK: - fprintf(NetTrace, "Forward Mask"); - for (i = 3; i < length; i++) - fprintf(NetTrace, " %x", pointer[i]); - break; - default: - fprintf(NetTrace, "%d (unknown)", pointer[2]); - for (i = 3; i < length; i++) - fprintf(NetTrace, " %d", pointer[i]); - break; - } - break; - - case LM_SLC: - fprintf(NetTrace, "SLC"); - for (i = 2; i < length - 2; i += 3) { - if (SLC_NAME_OK(pointer[i+SLC_FUNC])) - fprintf(NetTrace, " %s", SLC_NAME(pointer[i+SLC_FUNC])); - else - fprintf(NetTrace, " %d", pointer[i+SLC_FUNC]); - switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) { - case SLC_NOSUPPORT: - fprintf(NetTrace, " NOSUPPORT"); break; - case SLC_CANTCHANGE: - fprintf(NetTrace, " CANTCHANGE"); break; - case SLC_VARIABLE: - fprintf(NetTrace, " VARIABLE"); break; - case SLC_DEFAULT: - fprintf(NetTrace, " DEFAULT"); break; - } - fprintf(NetTrace, "%s%s%s", - pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "", - pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "", - pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : ""); - if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN| - SLC_FLUSHOUT| SLC_LEVELBITS)) - fprintf(NetTrace, "(0x%x)", pointer[i+SLC_FLAGS]); - fprintf(NetTrace, " %d;", pointer[i+SLC_VALUE]); - if ((pointer[i+SLC_VALUE] == IAC) && - (pointer[i+SLC_VALUE+1] == IAC)) - i++; - } - for (; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - - case LM_MODE: - fprintf(NetTrace, "MODE "); - if (length < 3) { - fprintf(NetTrace, "(no mode??\?)"); - break; - } - { - char tbuf[64]; - sprintf(tbuf, "%s%s%s%s%s", - pointer[2]&MODE_EDIT ? "|EDIT" : "", - pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "", - pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "", - pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "", - pointer[2]&MODE_ACK ? "|ACK" : ""); - fprintf(NetTrace, "%s", tbuf[1] ? &tbuf[1] : "0"); - } - if (pointer[2]&~(MODE_MASK)) - fprintf(NetTrace, " (0x%x)", pointer[2]); - for (i = 3; i < length; i++) - fprintf(NetTrace, " ?0x%x?", pointer[i]); - break; - default: - fprintf(NetTrace, "%d (unknown)", pointer[1]); - for (i = 2; i < length; i++) - fprintf(NetTrace, " %d", pointer[i]); - } - break; - - case TELOPT_STATUS: { - const char *cp; - int j, k; - - fprintf(NetTrace, "STATUS"); - - switch (pointer[1]) { - default: - if (pointer[1] == TELQUAL_SEND) - fprintf(NetTrace, " SEND"); - else - fprintf(NetTrace, " %d (unknown)", pointer[1]); - for (i = 2; i < length; i++) - fprintf(NetTrace, " ?%d?", pointer[i]); - break; - case TELQUAL_IS: - if (--want_status_response < 0) - want_status_response = 0; - if (NetTrace == stdout) - fprintf(NetTrace, " IS\r\n"); - else - fprintf(NetTrace, " IS\n"); - - for (i = 2; i < length; i++) { - switch(pointer[i]) { - case DO: cp = "DO"; goto common2; - case DONT: cp = "DONT"; goto common2; - case WILL: cp = "WILL"; goto common2; - case WONT: cp = "WONT"; goto common2; - common2: - i++; - if (TELOPT_OK((int)pointer[i])) - fprintf(NetTrace, " %s %s", cp, TELOPT(pointer[i])); - else - fprintf(NetTrace, " %s %d", cp, pointer[i]); - - if (NetTrace == stdout) - fprintf(NetTrace, "\r\n"); - else - fprintf(NetTrace, "\n"); - break; - - case SB: - fprintf(NetTrace, " SB "); - i++; - j = k = i; - while (j < length) { - if (pointer[j] == SE) { - if (j+1 == length) - break; - if (pointer[j+1] == SE) - j++; - else - break; - } - pointer[k++] = pointer[j++]; - } - printsub(0, &pointer[i], k - i); - if (i < length) { - fprintf(NetTrace, " SE"); - i = j; - } else - i = j - 1; - - if (NetTrace == stdout) - fprintf(NetTrace, "\r\n"); - else - fprintf(NetTrace, "\n"); - - break; - - default: - fprintf(NetTrace, " %d", pointer[i]); - break; - } - } - break; - } - break; - } - - case TELOPT_XDISPLOC: - fprintf(NetTrace, "X-DISPLAY-LOCATION "); - switch (pointer[1]) { - case TELQUAL_IS: - fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2); - break; - case TELQUAL_SEND: - fprintf(NetTrace, "SEND"); - break; - default: - fprintf(NetTrace, "- unknown qualifier %d (0x%x).", - pointer[1], pointer[1]); - } - break; - - case TELOPT_NEW_ENVIRON: - fprintf(NetTrace, "NEW-ENVIRON "); -#ifdef OLD_ENVIRON - goto env_common1; - case TELOPT_OLD_ENVIRON: - fprintf(NetTrace, "OLD-ENVIRON"); - env_common1: -#endif - switch (pointer[1]) { - case TELQUAL_IS: - fprintf(NetTrace, "IS "); - goto env_common; - case TELQUAL_SEND: - fprintf(NetTrace, "SEND "); - goto env_common; - case TELQUAL_INFO: - fprintf(NetTrace, "INFO "); - env_common: - { - int noquote = 2; -#if defined(ENV_HACK) && defined(OLD_ENVIRON) - extern int old_env_var, old_env_value; -#endif - for (i = 2; i < length; i++ ) { - switch (pointer[i]) { - case NEW_ENV_VALUE: -#ifdef OLD_ENVIRON - /* case NEW_ENV_OVAR: */ - if (pointer[0] == TELOPT_OLD_ENVIRON) { -# ifdef ENV_HACK - if (old_env_var == OLD_ENV_VALUE) - fprintf(NetTrace, "\" (VALUE) " + noquote); - else -# endif - fprintf(NetTrace, "\" VAR " + noquote); - } else -#endif /* OLD_ENVIRON */ - fprintf(NetTrace, "\" VALUE " + noquote); - noquote = 2; - break; - - case NEW_ENV_VAR: -#ifdef OLD_ENVIRON - /* case OLD_ENV_VALUE: */ - if (pointer[0] == TELOPT_OLD_ENVIRON) { -# ifdef ENV_HACK - if (old_env_value == OLD_ENV_VAR) - fprintf(NetTrace, "\" (VAR) " + noquote); - else -# endif - fprintf(NetTrace, "\" VALUE " + noquote); - } else -#endif /* OLD_ENVIRON */ - fprintf(NetTrace, "\" VAR " + noquote); - noquote = 2; - break; - - case ENV_ESC: - fprintf(NetTrace, "\" ESC " + noquote); - noquote = 2; - break; - - case ENV_USERVAR: - fprintf(NetTrace, "\" USERVAR " + noquote); - noquote = 2; - break; - - default: - if (isprint(pointer[i]) && pointer[i] != '"') { - if (noquote) { - putc('"', NetTrace); - noquote = 0; - } - putc(pointer[i], NetTrace); - } else { - fprintf(NetTrace, "\" %03o " + noquote, - pointer[i]); - noquote = 2; - } - break; - } - } - if (!noquote) - putc('"', NetTrace); - break; - } - } - break; - - default: - if (TELOPT_OK(pointer[0])) - fprintf(NetTrace, "%s (unknown)", TELOPT(pointer[0])); - else - fprintf(NetTrace, "%d (unknown)", pointer[0]); - for (i = 1; i < length; i++) - fprintf(NetTrace, " %d", pointer[i]); - break; - } - if (direction) { - if (NetTrace == stdout) - fprintf(NetTrace, "\r\n"); - else - fprintf(NetTrace, "\n"); - } - if (NetTrace == stdout) - fflush(NetTrace); - } -} - -/* EmptyTerminal - called to make sure that the terminal buffer is empty. - * Note that we consider the buffer to run all the - * way to the kernel (thus the select). - */ - -static void -EmptyTerminal(void) -{ - fd_set o; - - FD_ZERO(&o); - - if (TTYBYTES() == 0) { - FD_SET(tout, &o); - (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, - (struct timeval *) 0); /* wait for TTLOWAT */ - } else { - while (TTYBYTES()) { - (void) ttyflush(0); - FD_SET(tout, &o); - (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, - (struct timeval *) 0); /* wait for TTLOWAT */ - } - } -} - -static void -SetForExit(void) -{ - setconnmode(0); - do { - (void)telrcv(); /* Process any incoming data */ - EmptyTerminal(); - } while (ring_full_count(&netiring)); /* While there is any */ - setcommandmode(); - fflush(stdout); - fflush(stderr); - setconnmode(0); - EmptyTerminal(); /* Flush the path to the tty */ - setcommandmode(); -} - -void -Exit(int returnCode) -{ - SetForExit(); - exit(returnCode); -} - -void -ExitString(const char *string, int returnCode) -{ - SetForExit(); - fwrite(string, 1, strlen(string), stderr); - exit(returnCode); -} |
