diff options
author | markm <markm@FreeBSD.org> | 1996-11-07 14:42:57 +0000 |
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committer | markm <markm@FreeBSD.org> | 1996-11-07 14:42:57 +0000 |
commit | 524bda369e953d881ee7553b09e8264a246ab63d (patch) | |
tree | 18c8a25efc2a6c44c6b545bda4a0be55a4d7a8b2 /secure/usr.bin | |
parent | fc40bcb55d3fa6be84318069bec334bf41b56601 (diff) | |
download | FreeBSD-src-524bda369e953d881ee7553b09e8264a246ab63d.zip FreeBSD-src-524bda369e953d881ee7553b09e8264a246ab63d.tar.gz |
Secure telnet is now in eBones.
Diffstat (limited to 'secure/usr.bin')
-rw-r--r-- | secure/usr.bin/telnet/Makefile | 56 | ||||
-rw-r--r-- | secure/usr.bin/telnet/README | 566 | ||||
-rw-r--r-- | secure/usr.bin/telnet/authenc.c | 111 | ||||
-rw-r--r-- | secure/usr.bin/telnet/commands.c | 2945 | ||||
-rw-r--r-- | secure/usr.bin/telnet/defines.h | 61 | ||||
-rw-r--r-- | secure/usr.bin/telnet/externs.h | 482 | ||||
-rw-r--r-- | secure/usr.bin/telnet/fdset.h | 49 | ||||
-rw-r--r-- | secure/usr.bin/telnet/general.h | 45 | ||||
-rw-r--r-- | secure/usr.bin/telnet/main.c | 322 | ||||
-rw-r--r-- | secure/usr.bin/telnet/network.c | 177 | ||||
-rw-r--r-- | secure/usr.bin/telnet/ring.c | 362 | ||||
-rw-r--r-- | secure/usr.bin/telnet/ring.h | 105 | ||||
-rw-r--r-- | secure/usr.bin/telnet/sys_bsd.c | 1220 | ||||
-rw-r--r-- | secure/usr.bin/telnet/telnet.1 | 1366 | ||||
-rw-r--r-- | secure/usr.bin/telnet/telnet.c | 2650 | ||||
-rw-r--r-- | secure/usr.bin/telnet/terminal.c | 240 | ||||
-rw-r--r-- | secure/usr.bin/telnet/tn3270.c | 411 | ||||
-rw-r--r-- | secure/usr.bin/telnet/types.h | 52 | ||||
-rw-r--r-- | secure/usr.bin/telnet/utilities.c | 939 |
19 files changed, 0 insertions, 12159 deletions
diff --git a/secure/usr.bin/telnet/Makefile b/secure/usr.bin/telnet/Makefile deleted file mode 100644 index 3369827..0000000 --- a/secure/usr.bin/telnet/Makefile +++ /dev/null @@ -1,56 +0,0 @@ -# -# Copyright (c) 1990 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. -# -# @(#)Makefile 8.1 (Berkeley) 6/6/93 -# $Id: Makefile,v 1.14 1996/04/23 05:18:42 pst Exp $ -# - -PROG= telnet - -SRCS= authenc.c commands.c main.c network.c ring.c sys_bsd.c telnet.c \ - terminal.c tn3270.c utilities.c - -CFLAGS+=-DTERMCAP -DKLUDGELINEMODE -DUSE_TERMIO -DENV_HACK -DENCRYPTION -CFLAGS+=-I${.CURDIR}/../../lib -LDADD+= -L${TELNETOBJDIR} -ltermcap -ltelnet -DPADD+= ${TELNETOBJDIR}/libtelnet.a ${LIBTERMCAP} - -.if exists(${DESTDIR}/usr/lib/libkrb.a) && (defined(MAKE_EBONES)) -CFLAGS+=-DAUTHENTICATION -DKRB4 -LDADD+= -ldes -lkrb -DPADD+= ${LIBDES} ${LIBKRB} -.endif - -# Used only in krb4encpwd.c and rsaencpwd.c (libtelnet), not yet active -#LDADD+= -ldescrypt - -.include <bsd.prog.mk> diff --git a/secure/usr.bin/telnet/README b/secure/usr.bin/telnet/README deleted file mode 100644 index 086c88f..0000000 --- a/secure/usr.bin/telnet/README +++ /dev/null @@ -1,566 +0,0 @@ - - -This is a distribution of both client and server telnet. These programs -have been compiled on: - telnet telnetd - BSD 4.3 Reno X X - UNICOS 5.1 X X - UNICOS 6.0 X X - UNICOS 6.1 X X - UNICOS 7.0 X X - SunOs 3.5 X X (no linemode in server) - SunOs 4.1 X X (no linemode in server) - DYNIX V3.0.17.9 X X (no linemode in server) - Ultrix 3.1 X X (no linemode in server) - Ultrix 4.0 X X (no linemode in server) - -In addition, previous versions have been compiled on the following -machines, but were not available for testing this version. - telnet telnetd - SunOs 4.0.3c X X (no linemode in server) - BSD 4.3 X X (no linemode in server) - DYNIX V3.0.12 X X (no linemode in server) - -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 NOT been assigned to it yet. - 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", "debug", "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", "auto", - "verbose", "debug", and "help". - - 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 compatability 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 seperate input and output - line speed settings imbedded 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. - - Seperate 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 seperate 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. - -tmac.doc: - Macros for use in formatting the man pages on non-4.3Reno - systems. - -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> - - -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 - - 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. - - ENCRYPT: - 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/secure/usr.bin/telnet/authenc.c b/secure/usr.bin/telnet/authenc.c deleted file mode 100644 index 545df78..0000000 --- a/secure/usr.bin/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. - */ - -#ifndef lint -static char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93"; -#endif /* not lint */ - -#if defined(AUTHENTICATION) || defined(ENCRYPTION) -#include <sys/types.h> -#include <arpa/telnet.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(str, len) - 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() -{ -#ifdef ENCRYPTION - if (encrypt_output) - ring_encrypt(&netoring, encrypt_output); - else - ring_clearto(&netoring); -#endif /* ENCRYPTION */ -} - - int -telnet_spin() -{ - return(-1); -} - - char * -telnet_getenv(val) - char *val; -{ - return((char *)env_getvalue((unsigned char *)val)); -} - - char * -telnet_gets(prompt, result, length, echo) - char *prompt; - char *result; - int length; - int echo; -{ - extern char *getpass(); - extern int globalmode; - int om = globalmode; - char *res; - - TerminalNewMode(-1); - if (echo) { - printf("%s", prompt); - res = fgets(result, length, stdin); - } else if (res = getpass(prompt)) { - strncpy(result, res, length); - res = result; - } - TerminalNewMode(om); - return(res); -} -#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ diff --git a/secure/usr.bin/telnet/commands.c b/secure/usr.bin/telnet/commands.c deleted file mode 100644 index a6967b5..0000000 --- a/secure/usr.bin/telnet/commands.c +++ /dev/null @@ -1,2945 +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. - */ - -#ifndef lint -static char sccsid[] = "@(#)commands.c 8.4 (Berkeley) 5/30/95"; -#endif /* not lint */ - -#if defined(unix) -#include <sys/param.h> -#if defined(CRAY) || defined(sysV88) -#include <sys/types.h> -#endif -#include <sys/file.h> -#else -#include <sys/types.h> -#endif /* defined(unix) */ -#include <sys/socket.h> -#include <netinet/in.h> -#ifdef CRAY -#include <fcntl.h> -#endif /* CRAY */ - -#include <signal.h> -#include <netdb.h> -#include <ctype.h> -#include <pwd.h> -#include <varargs.h> -#include <errno.h> - -#include <arpa/telnet.h> - -#include "general.h" - -#include "ring.h" - -#include "externs.h" -#include "defines.h" -#include "types.h" - -#if !defined(CRAY) && !defined(sysV88) -#include <netinet/in_systm.h> -# if (defined(vax) || defined(tahoe) || defined(hp300)) && !defined(ultrix) -# include <machine/endian.h> -# endif /* vax */ -#endif /* !defined(CRAY) && !defined(sysV88) */ -#include <netinet/ip.h> - - -#ifndef MAXHOSTNAMELEN -#define MAXHOSTNAMELEN 64 -#endif MAXHOSTNAMELEN - -#if defined(IPPROTO_IP) && defined(IP_TOS) -int tos = -1; -#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ - -char *hostname; -static char _hostname[MAXHOSTNAMELEN]; - -extern char *getenv(); - -extern int isprefix(); -extern char **genget(); -extern int Ambiguous(); - -static call(); - -typedef struct { - char *name; /* command name */ - char *help; /* help string (NULL for no help) */ - int (*handler)(); /* 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]; - - static void -makeargv() -{ - register char *cp, *cp2, c; - register char **argp = margv; - - margc = 0; - cp = line; - if (*cp == '!') { /* Special case shell escape */ - strcpy(saveline, line); /* save for shell command */ - *argp++ = "!"; /* No room in string to get this */ - margc++; - cp++; - } - while (c = *cp) { - register 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 -special(s) - register char *s; -{ - register 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 char * -control(c) - register 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.... - */ - register 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 { - char *name; /* How user refers to it (case independent) */ - char *help; /* Help information (0 ==> no help) */ - int needconnect; /* Need to be connected */ - int narg; /* Number of arguments */ - int (*handler)(); /* 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 P((void)), - send_help P((void)), - send_docmd P((char *)), - send_dontcmd P((char *)), - send_willcmd P((char *)), - send_wontcmd P((char *)); - -static struct sendlist Sendlist[] = { - { "ao", "Send Telnet Abort output", 1, 0, 0, 2, AO }, - { "ayt", "Send Telnet 'Are You There'", 1, 0, 0, 2, AYT }, - { "brk", "Send Telnet Break", 1, 0, 0, 2, BREAK }, - { "break", 0, 1, 0, 0, 2, BREAK }, - { "ec", "Send Telnet Erase Character", 1, 0, 0, 2, EC }, - { "el", "Send Telnet Erase Line", 1, 0, 0, 2, EL }, - { "escape", "Send current escape character", 1, 0, send_esc, 1, 0 }, - { "ga", "Send Telnet 'Go Ahead' sequence", 1, 0, 0, 2, GA }, - { "ip", "Send Telnet Interrupt Process", 1, 0, 0, 2, IP }, - { "intp", 0, 1, 0, 0, 2, IP }, - { "interrupt", 0, 1, 0, 0, 2, IP }, - { "intr", 0, 1, 0, 0, 2, IP }, - { "nop", "Send Telnet 'No operation'", 1, 0, 0, 2, NOP }, - { "eor", "Send Telnet 'End of Record'", 1, 0, 0, 2, EOR }, - { "abort", "Send Telnet 'Abort Process'", 1, 0, 0, 2, ABORT }, - { "susp", "Send Telnet 'Suspend Process'", 1, 0, 0, 2, SUSP }, - { "eof", "Send Telnet End of File Character", 1, 0, 0, 2, xEOF }, - { "synch", "Perform Telnet 'Synch operation'", 1, 0, dosynch, 2, 0 }, - { "getstatus", "Send request for STATUS", 1, 0, get_status, 6, 0 }, - { "?", "Display send options", 0, 0, send_help, 0, 0 }, - { "help", 0, 0, 0, send_help, 0, 0 }, - { "do", 0, 0, 1, send_docmd, 3, 0 }, - { "dont", 0, 0, 1, send_dontcmd, 3, 0 }, - { "will", 0, 0, 1, send_willcmd, 3, 0 }, - { "wont", 0, 0, 1, send_wontcmd, 3, 0 }, - { 0 } -}; - -#define GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \ - sizeof(struct sendlist))) - - static int -sendcmd(argc, argv) - int argc; - char **argv; -{ - int count; /* how many bytes we are going to need to send */ - int i; - int question = 0; /* was at least one argument a question */ - 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(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 (s->handler == 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"); - (void) 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() -{ - NETADD(escape); - return 1; -} - - static int -send_docmd(name) - 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(name) - char *name; -{ - return(send_tncmd(send_will, "will", name)); -} - static int -send_wontcmd(name) - char *name; -{ - return(send_tncmd(send_wont, "wont", name)); -} - - int -send_tncmd(func, cmd, name) - void (*func)(); - char *cmd, *name; -{ - char **cpp; - extern char *telopts[]; - register int val = 0; - - if (isprefix(name, "help") || isprefix(name, "?")) { - register 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 { - register 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() -{ - 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() -{ - donelclchars = 1; - return 1; -} - - static int -togdebug() -{ -#ifndef NOT43 - if (net > 0 && - (SetSockOpt(net, SOL_SOCKET, SO_DEBUG, debug)) < 0) { - perror("setsockopt (SO_DEBUG)"); - } -#else /* NOT43 */ - if (debug) { - if (net > 0 && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 0, 0) < 0) - perror("setsockopt (SO_DEBUG)"); - } else - printf("Cannot turn off socket debugging\n"); -#endif /* NOT43 */ - return 1; -} - - - static int -togcrlf() -{ - 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(val) - 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(val) - 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(val) - 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; -} - - -static int togglehelp P((void)); -#if defined(AUTHENTICATION) -extern int auth_togdebug P((int)); -#endif -#ifdef ENCRYPTION -extern int EncryptAutoEnc P((int)); -extern int EncryptAutoDec P((int)); -extern int EncryptDebug P((int)); -extern int EncryptVerbose P((int)); -#endif /* ENCRYPTION */ - -struct togglelist { - char *name; /* name of toggle */ - char *help; /* help message */ - int (*handler)(); /* routine to do actual setting */ - int *variable; - 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" }, -#if defined(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>", - togcrlf, - &crlf, - 0 }, - { "crmod", - "mapping of received carriage returns", - 0, - &crmod, - "map carriage return on output" }, - { "localchars", - "local recognition of certain control characters", - lclchars, - &localchars, - "recognize certain control characters" }, - { " ", "", 0 }, /* empty line */ -#if defined(unix) && defined(TN3270) - { "apitrace", - "(debugging) toggle tracing of API transactions", - 0, - &apitrace, - "trace API transactions" }, - { "cursesdata", - "(debugging) toggle printing of hexadecimal curses data", - 0, - &cursesdata, - "print hexadecimal representation of curses data" }, -#endif /* defined(unix) && defined(TN3270) */ - { "debug", - "debugging", - togdebug, - &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" }, -#if defined(unix) - { "termdata", - "(debugging) toggle printing of hexadecimal terminal data", - 0, - &termdata, - "print hexadecimal representation of terminal traffic" }, -#endif /* defined(unix) */ - { "?", - 0, - togglehelp }, - { "help", - 0, - togglehelp }, - { 0 } -}; - - static int -togglehelp() -{ - 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(set) - 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(argc, argv) - 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(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 }; -#endif - -struct setlist { - char *name; /* name */ - char *help; /* help information */ - void (*handler)(); - cc_t *charp; /* where it is located at */ -}; - -static struct setlist Setlist[] = { -#ifdef KLUDGELINEMODE - { "echo", "character to toggle local echoing on/off", 0, &echoc }, -#endif - { "escape", "character to escape back to telnet command mode", 0, &escape }, - { "rlogin", "rlogin escape character", 0, &rlogin }, - { "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile}, - { " ", "" }, - { " ", "The following need 'localchars' to be toggled true", 0, 0 }, - { "flushoutput", "character to cause an Abort Output", 0, termFlushCharp }, - { "interrupt", "character to cause an Interrupt Process", 0, termIntCharp }, - { "quit", "character to cause an Abort process", 0, termQuitCharp }, - { "eof", "character to cause an EOF ", 0, termEofCharp }, - { " ", "" }, - { " ", "The following are for local editing in linemode", 0, 0 }, - { "erase", "character to use to erase a character", 0, termEraseCharp }, - { "kill", "character to use to erase a line", 0, termKillCharp }, - { "lnext", "character to use for literal next", 0, termLiteralNextCharp }, - { "susp", "character to cause a Suspend Process", 0, termSuspCharp }, - { "reprint", "character to use for line reprint", 0, termRprntCharp }, - { "worderase", "character to use to erase a word", 0, termWerasCharp }, - { "start", "character to use for XON", 0, termStartCharp }, - { "stop", "character to use for XOFF", 0, termStopCharp }, - { "forw1", "alternate end of line character", 0, termForw1Charp }, - { "forw2", "alternate end of line character", 0, termForw2Charp }, - { "ayt", "alternate AYT character", 0, termAytCharp }, - { 0 } -}; - -#if defined(CRAY) && !defined(__STDC__) -/* Work around compiler bug in pcc 4.1.5 */ - void -_setlist_init() -{ -#ifndef KLUDGELINEMODE -#define N 5 -#else -#define N 6 -#endif - Setlist[N+0].charp = &termFlushChar; - Setlist[N+1].charp = &termIntChar; - Setlist[N+2].charp = &termQuitChar; - Setlist[N+3].charp = &termEofChar; - Setlist[N+6].charp = &termEraseChar; - Setlist[N+7].charp = &termKillChar; - Setlist[N+8].charp = &termLiteralNextChar; - Setlist[N+9].charp = &termSuspChar; - Setlist[N+10].charp = &termRprntChar; - Setlist[N+11].charp = &termWerasChar; - Setlist[N+12].charp = &termStartChar; - Setlist[N+13].charp = &termStopChar; - Setlist[N+14].charp = &termForw1Char; - Setlist[N+15].charp = &termForw2Char; - Setlist[N+16].charp = &termAytChar; -#undef N -} -#endif /* defined(CRAY) && !defined(__STDC__) */ - - static struct setlist * -getset(name) - char *name; -{ - return (struct setlist *) - genget(name, (char **) Setlist, sizeof(struct setlist)); -} - - void -set_escape_char(s) - 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(argc, argv) - 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(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(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(argc, argv) - int argc; - char *argv[]; -{ - struct setlist *ct; - struct togglelist *c; - register 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(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(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() -{ - kludgelinemode = 1; - send_wont(TELOPT_LINEMODE, 1); - send_dont(TELOPT_SGA, 1); - send_dont(TELOPT_ECHO, 1); -} -#endif - - static int -dolinemode() -{ -#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() -{ -#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(bit, on) - int bit, 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; -} - - int -setmode(bit) -{ - return dolmmode(bit, 1); -} - - int -clearmode(bit) -{ - return dolmmode(bit, 0); -} - -struct modelist { - char *name; /* command name */ - char *help; /* help string */ - int (*handler)(); /* routine which executes command */ - int needconnect; /* Do we need to be connected to execute? */ - int arg1; -}; - -extern int modehelp(); - -static struct modelist ModeList[] = { - { "character", "Disable LINEMODE option", docharmode, 1 }, -#ifdef KLUDGELINEMODE - { "", "(or disable obsolete line-by-line mode)", 0 }, -#endif - { "line", "Enable LINEMODE option", dolinemode, 1 }, -#ifdef KLUDGELINEMODE - { "", "(or enable obsolete line-by-line mode)", 0 }, -#endif - { "", "", 0 }, - { "", "These require the LINEMODE option to be enabled", 0 }, - { "isig", "Enable signal trapping", setmode, 1, MODE_TRAPSIG }, - { "+isig", 0, setmode, 1, MODE_TRAPSIG }, - { "-isig", "Disable signal trapping", clearmode, 1, MODE_TRAPSIG }, - { "edit", "Enable character editing", setmode, 1, MODE_EDIT }, - { "+edit", 0, setmode, 1, MODE_EDIT }, - { "-edit", "Disable character editing", clearmode, 1, MODE_EDIT }, - { "softtabs", "Enable tab expansion", setmode, 1, MODE_SOFT_TAB }, - { "+softtabs", 0, setmode, 1, MODE_SOFT_TAB }, - { "-softtabs", "Disable character editing", clearmode, 1, MODE_SOFT_TAB }, - { "litecho", "Enable literal character echo", setmode, 1, MODE_LIT_ECHO }, - { "+litecho", 0, setmode, 1, MODE_LIT_ECHO }, - { "-litecho", "Disable literal character echo", clearmode, 1, MODE_LIT_ECHO }, - { "help", 0, modehelp, 0 }, -#ifdef KLUDGELINEMODE - { "kludgeline", 0, dokludgemode, 1 }, -#endif - { "", "", 0 }, - { "?", "Print help information", modehelp, 0 }, - { 0 }, -}; - - - int -modehelp() -{ - 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(argc, argv) - 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(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(argc, argv) - 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(sl) || Ambiguous(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(argc, argv) - int argc; - char *argv[]; -{ - register 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]; - if (!In3270) { - printf("Escape character is '%s'.\n", control(escape)); - } - (void) fflush(stdout); - return 1; -} - - /*VARARGS*/ - static int -togcrmod() -{ - 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; -} - - /*VARARGS*/ - int -suspend() -{ -#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; -} - -#if !defined(TN3270) - /*ARGSUSED*/ - int -shell(argc, argv) - int argc; - char *argv[]; -{ - 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. - */ - register char *shellp, *shellname; - extern char *strrchr(); - - 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], 0); - else - execl(shellp, shellname, 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; -} -#else /* !defined(TN3270) */ -extern int shell(); -#endif /* !defined(TN3270) */ - - /*VARARGS*/ - static -bye(argc, argv) - int argc; /* Number of arguments */ - char *argv[]; /* arguments */ -{ - extern int resettermname; - - if (connected) { - (void) shutdown(net, 2); - printf("Connection closed.\n"); - (void) NetClose(net); - connected = 0; - resettermname = 1; -#if defined(AUTHENTICATION) || defined(ENCRYPTION) - auth_encrypt_connect(connected); -#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ - /* reset options */ - tninit(); -#if defined(TN3270) - SetIn3270(); /* Get out of 3270 mode */ -#endif /* defined(TN3270) */ - } - if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) { - longjmp(toplevel, 1); - /* NOTREACHED */ - } - return 1; /* Keep lint, etc., happy */ -} - -/*VARARGS*/ -quit() -{ - (void) call(bye, "bye", "fromquit", 0); - Exit(0); - /*NOTREACHED*/ -} - -/*VARARGS*/ - int -logout() -{ - send_do(TELOPT_LOGOUT, 1); - (void) netflush(); - return 1; -} - - -/* - * The SLC command. - */ - -struct slclist { - char *name; - char *help; - void (*handler)(); - int arg; -}; - -static void slc_help(); - -struct slclist SlcList[] = { - { "export", "Use local special character definitions", - 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", 0, slc_help, 0 }, - { "?", "Print help information", slc_help, 0 }, - { 0 }, -}; - - static void -slc_help() -{ - 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(name) - char *name; -{ - return (struct slclist *) - genget(name, (char **) SlcList, sizeof(struct slclist)); -} - - static -slccmd(argc, argv) - 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(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 { - char *name; - char *help; - void (*handler)(); - int narg; -}; - -extern struct env_lst * - env_define P((unsigned char *, unsigned char *)); -extern void - env_undefine P((unsigned char *)), - env_export P((unsigned char *)), - env_unexport P((unsigned char *)), - env_send P((unsigned char *)), -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - env_varval P((unsigned char *)), -#endif - env_list P((void)); -static void - env_help P((void)); - -struct envlist EnvList[] = { - { "define", "Define an environment variable", - (void (*)())env_define, 2 }, - { "undefine", "Undefine an environment variable", - env_undefine, 1 }, - { "export", "Mark an environment variable for automatic export", - env_export, 1 }, - { "unexport", "Don't mark an environment variable for automatic export", - env_unexport, 1 }, - { "send", "Send an environment variable", env_send, 1 }, - { "list", "List the current environment variables", - env_list, 0 }, -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - { "varval", "Reverse VAR and VALUE (auto, right, wrong, status)", - env_varval, 1 }, -#endif - { "help", 0, env_help, 0 }, - { "?", "Print help information", env_help, 0 }, - { 0 }, -}; - - static void -env_help() -{ - 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(name) - char *name; -{ - return (struct envlist *) - genget(name, (char **) EnvList, sizeof(struct envlist)); -} - -env_cmd(argc, argv) - 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(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; - - struct env_lst * -env_find(var) - unsigned char *var; -{ - register struct env_lst *ep; - - for (ep = envlisthead.next; ep; ep = ep->next) { - if (strcmp((char *)ep->var, (char *)var) == 0) - return(ep); - } - return(NULL); -} - - void -env_init() -{ - extern char **environ; - register char **epp, *cp; - register struct env_lst *ep; - extern char *strchr(); - - 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((unsigned char *)"USER", ep->value); - env_unexport((unsigned char *)"USER"); - } - env_export((unsigned char *)"DISPLAY"); - env_export((unsigned char *)"PRINTER"); -} - - struct env_lst * -env_define(var, value) - unsigned char *var, *value; -{ - register 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 = (unsigned char *)strdup((char *)var); - ep->value = (unsigned char *)strdup((char *)value); - return(ep); -} - - void -env_undefine(var) - unsigned char *var; -{ - register 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(var) - unsigned char *var; -{ - register struct env_lst *ep; - - if (ep = env_find(var)) - ep->export = 1; -} - - void -env_unexport(var) - unsigned char *var; -{ - register struct env_lst *ep; - - if (ep = env_find(var)) - ep->export = 0; -} - - void -env_send(var) - unsigned char *var; -{ - register 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() -{ - register 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(init, welldefined) - int init; -{ - static struct env_lst *nep = NULL; - - if (init) { - nep = &envlisthead; - return; - } - if (nep) { - while (nep = nep->next) { - if (nep->export && (nep->welldefined == welldefined)) - return(nep->var); - } - } - return(NULL); -} - - unsigned char * -env_getvalue(var) - unsigned char *var; -{ - register struct env_lst *ep; - - if (ep = env_find(var)) - return(ep->value); - return(NULL); -} - -#if defined(OLD_ENVIRON) && defined(ENV_HACK) - void -env_varval(what) - 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 - -#if defined(AUTHENTICATION) -/* - * The AUTHENTICATE command. - */ - -struct authlist { - char *name; - char *help; - int (*handler)(); - int narg; -}; - -extern int - auth_enable P((char *)), - auth_disable P((char *)), - auth_status P((void)); -static int - auth_help P((void)); - -struct authlist AuthList[] = { - { "status", "Display current status of authentication information", - 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", 0, auth_help, 0 }, - { "?", "Print help information", auth_help, 0 }, - { 0 }, -}; - - static int -auth_help() -{ - 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; -} - -auth_cmd(argc, argv) - 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(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], argv[3])); -} -#endif - -#ifdef ENCRYPTION -/* - * The ENCRYPT command. - */ - -struct encryptlist { - char *name; - char *help; - int (*handler)(); - int needconnect; - int minarg; - int maxarg; -}; - -extern int - EncryptEnable P((char *, char *)), - EncryptDisable P((char *, char *)), - EncryptType P((char *, char *)), - EncryptStart P((char *)), - EncryptStartInput P((void)), - EncryptStartOutput P((void)), - EncryptStop P((char *)), - EncryptStopInput P((void)), - EncryptStopOutput P((void)), - EncryptStatus P((void)); -static int - EncryptHelp P((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)", - EncryptStart, 1, 0, 1 }, - { "stop", "Stop encryption. ('encrypt stop ?' for more)", - EncryptStop, 1, 0, 1 }, - { "input", "Start encrypting the input stream", - EncryptStartInput, 1, 0, 0 }, - { "-input", "Stop encrypting the input stream", - EncryptStopInput, 1, 0, 0 }, - { "output", "Start encrypting the output stream", - EncryptStartOutput, 1, 0, 0 }, - { "-output", "Stop encrypting the output stream", - EncryptStopOutput, 1, 0, 0 }, - - { "status", "Display current status of authentication information", - EncryptStatus, 0, 0, 0 }, - { "help", 0, EncryptHelp, 0, 0, 0 }, - { "?", "Print help information", EncryptHelp, 0, 0, 0 }, - { 0 }, -}; - - static int -EncryptHelp() -{ - 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; -} - -encrypt_cmd(argc, argv) - 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(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, - argc > 2 ? argv[4] : 0)); -} -#endif /* ENCRYPTION */ - -#if defined(unix) && defined(TN3270) - static void -filestuff(fd) - int fd; -{ - int res; - -#ifdef F_GETOWN - setconnmode(0); - res = fcntl(fd, F_GETOWN, 0); - setcommandmode(); - - if (res == -1) { - perror("fcntl"); - return; - } - printf("\tOwner is %d.\n", res); -#endif - - setconnmode(0); - res = fcntl(fd, F_GETFL, 0); - setcommandmode(); - - if (res == -1) { - perror("fcntl"); - return; - } -#ifdef notdef - printf("\tFlags are 0x%x: %s\n", res, decodeflags(res)); -#endif -} -#endif /* defined(unix) && defined(TN3270) */ - -/* - * Print status about the connection. - */ - /*ARGSUSED*/ - static -status(argc, argv) - 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"); - } -# if !defined(TN3270) - printf("Escape character is '%s'.\n", control(escape)); - (void) fflush(stdout); -# else /* !defined(TN3270) */ - if ((!In3270) && ((argc < 2) || strcmp(argv[1], "notmuch"))) { - printf("Escape character is '%s'.\n", control(escape)); - } -# if defined(unix) - if ((argc >= 2) && !strcmp(argv[1], "everything")) { - printf("SIGIO received %d time%s.\n", - sigiocount, (sigiocount == 1)? "":"s"); - if (In3270) { - printf("Process ID %d, process group %d.\n", - getpid(), getpgrp(getpid())); - printf("Terminal input:\n"); - filestuff(tin); - printf("Terminal output:\n"); - filestuff(tout); - printf("Network socket:\n"); - filestuff(net); - } - } - if (In3270 && transcom) { - printf("Transparent mode command is '%s'.\n", transcom); - } -# endif /* defined(unix) */ - (void) fflush(stdout); - if (In3270) { - return 0; - } -# endif /* defined(TN3270) */ - return 1; -} - -#ifdef SIGINFO -/* - * Function that gets called when SIGINFO is received. - */ -ayt_status() -{ - (void) call(status, "status", "notmuch", 0); -} -#endif - -unsigned long inet_addr(); - - int -tn(argc, argv) - int argc; - char *argv[]; -{ - register struct hostent *host = 0; - struct sockaddr_in sin; - struct servent *sp = 0; - unsigned long temp; - extern char *inet_ntoa(); -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - char *srp = 0, *strrchr(); - unsigned long sourceroute(), srlen; -#endif - char *cmd, *hostp = 0, *portp = 0, *user = 0; - - /* clear the socket address prior to use */ - memset((char *)&sin, 0, sizeof(sin)); - - 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 (hostp == 0) { - hostp = *argv++; - --argc; - continue; - } - if (portp == 0) { - portp = *argv++; - --argc; - continue; - } - usage: - printf("usage: %s [-l user] [-a] host-name [port]\n", cmd); - setuid(getuid()); - return 0; - } - if (hostp == 0) - goto usage; - -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - if (hostp[0] == '@' || hostp[0] == '!') { - if ((hostname = strrchr(hostp, ':')) == NULL) - hostname = strrchr(hostp, '@'); - hostname++; - srp = 0; - temp = sourceroute(hostp, &srp, &srlen); - if (temp == 0) { - herror(srp); - setuid(getuid()); - return 0; - } else if (temp == -1) { - printf("Bad source route option: %s\n", hostp); - setuid(getuid()); - return 0; - } else { - sin.sin_addr.s_addr = temp; - sin.sin_family = AF_INET; - } - } else { -#endif - temp = inet_addr(hostp); - if (temp != (unsigned long) -1) { - sin.sin_addr.s_addr = temp; - sin.sin_family = AF_INET; - (void) strcpy(_hostname, hostp); - hostname = _hostname; - } else { - host = gethostbyname(hostp); - if (host) { - sin.sin_family = host->h_addrtype; -#if defined(h_addr) /* In 4.3, this is a #define */ - memmove((caddr_t)&sin.sin_addr, - host->h_addr_list[0], host->h_length); -#else /* defined(h_addr) */ - memmove((caddr_t)&sin.sin_addr, host->h_addr, host->h_length); -#endif /* defined(h_addr) */ - strncpy(_hostname, host->h_name, sizeof(_hostname)); - _hostname[sizeof(_hostname)-1] = '\0'; - hostname = _hostname; - } else { - herror(hostp); - setuid(getuid()); - return 0; - } - } -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - } -#endif - if (portp) { - if (*portp == '-') { - portp++; - telnetport = 1; - } else - telnetport = 0; - sin.sin_port = atoi(portp); - if (sin.sin_port == 0) { - sp = getservbyname(portp, "tcp"); - if (sp) - sin.sin_port = sp->s_port; - else { - printf("%s: bad port number\n", portp); - setuid(getuid()); - return 0; - } - } else { -#if !defined(htons) - u_short htons P((unsigned short)); -#endif /* !defined(htons) */ - sin.sin_port = htons(sin.sin_port); - } - } else { - if (sp == 0) { - sp = getservbyname("telnet", "tcp"); - if (sp == 0) { - fprintf(stderr, "telnet: tcp/telnet: unknown service\n"); - setuid(getuid()); - return 0; - } - sin.sin_port = sp->s_port; - } - telnetport = 1; - } - printf("Trying %s...\n", inet_ntoa(sin.sin_addr)); - do { - net = socket(AF_INET, SOCK_STREAM, 0); - setuid(getuid()); - if (net < 0) { - perror("telnet: socket"); - return 0; - } -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - if (srp && setsockopt(net, IPPROTO_IP, IP_OPTIONS, (char *)srp, srlen) < 0) - perror("setsockopt (IP_OPTIONS)"); -#endif -#if defined(IPPROTO_IP) && defined(IP_TOS) - { -# 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(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 (debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) { - perror("setsockopt (SO_DEBUG)"); - } - - if (connect(net, (struct sockaddr *)&sin, sizeof (sin)) < 0) { -#if defined(h_addr) /* In 4.3, this is a #define */ - if (host && host->h_addr_list[1]) { - int oerrno = errno; - - fprintf(stderr, "telnet: connect to address %s: ", - inet_ntoa(sin.sin_addr)); - errno = oerrno; - perror((char *)0); - host->h_addr_list++; - memmove((caddr_t)&sin.sin_addr, - host->h_addr_list[0], host->h_length); - (void) NetClose(net); - continue; - } -#endif /* defined(h_addr) */ - perror("telnet: Unable to connect to remote host"); - return 0; - } - connected++; -#if defined(AUTHENTICATION) || defined(ENCRYPTION) - auth_encrypt_connect(connected); -#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ - } while (connected == 0); - cmdrc(hostp, hostname); - 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((unsigned char *)"USER", (unsigned char *)user); - env_export((unsigned char *)"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*/ -} - -#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", -#if defined(TN3270) && defined(unix) - transcomhelp[] = "specify Unix command for transparent mode pipe", -#endif /* defined(TN3270) && defined(unix) */ -#if defined(AUTHENTICATION) - authhelp[] = "turn on (off) authentication ('auth ?' for more)", -#endif -#ifdef ENCRYPTION - encrypthelp[] = "turn on (off) encryption ('encrypt ?' for more)", -#endif /* ENCRYPTION */ -#if defined(unix) - zhelp[] = "suspend telnet", -#endif /* defined(unix) */ - shellhelp[] = "invoke a subshell", - envhelp[] = "change environment variables ('environ ?' for more)", - modestring[] = "try to enter line or character mode ('mode ?' for more)"; - -static int help(); - -static Command cmdtab[] = { - { "close", closehelp, bye, 1 }, - { "logout", logouthelp, logout, 1 }, - { "display", displayhelp, display, 0 }, - { "mode", modestring, modecmd, 0 }, - { "open", openhelp, tn, 0 }, - { "quit", quithelp, 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 }, -#if defined(TN3270) && defined(unix) - { "transcom", transcomhelp, settranscom, 0 }, -#endif /* defined(TN3270) && defined(unix) */ -#if defined(AUTHENTICATION) - { "auth", authhelp, auth_cmd, 0 }, -#endif -#ifdef ENCRYPTION - { "encrypt", encrypthelp, encrypt_cmd, 0 }, -#endif /* ENCRYPTION */ -#if defined(unix) - { "z", zhelp, suspend, 0 }, -#endif /* defined(unix) */ -#if defined(TN3270) - { "!", shellhelp, shell, 1 }, -#else - { "!", shellhelp, shell, 0 }, -#endif - { "environ", envhelp, env_cmd, 0 }, - { "?", helphelp, help, 0 }, - 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, togcrmod, 0 }, - 0 -}; - - -/* - * Call routine with argc, argv set from args (terminated by 0). - */ - - /*VARARGS1*/ - static -call(va_alist) - va_dcl -{ - va_list ap; - typedef int (*intrtn_t)(); - intrtn_t routine; - char *args[100]; - int argno = 0; - - va_start(ap); - routine = (va_arg(ap, intrtn_t)); - while ((args[argno++] = va_arg(ap, char *)) != 0) { - ; - } - va_end(ap); - return (*routine)(argno-1, args); -} - - - static Command * -getcmd(name) - 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(top, tbuf, cnt) - int top; - char *tbuf; - int cnt; -{ - register Command *c; - - setcommandmode(); - if (!top) { - putchar('\n'); -#if defined(unix) - } else { - (void) signal(SIGINT, SIG_DFL); - (void) signal(SIGQUIT, SIG_DFL); -#endif /* defined(unix) */ - } - for (;;) { - if (rlogin == _POSIX_VDISABLE) - printf("%s> ", prompt); - if (tbuf) { - register 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(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*/ - } -#if defined(TN3270) - if (shell_active == 0) { - setconnmode(0); - } -#else /* defined(TN3270) */ - setconnmode(0); -#endif /* defined(TN3270) */ - } -} - -/* - * Help command. - */ - static -help(argc, argv) - int argc; - char *argv[]; -{ - register 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", HELPINDENT, c->name, - c->help); - } - return 0; - } - while (--argc > 0) { - register char *arg; - arg = *++argv; - c = getcmd(arg); - if (Ambiguous(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]; - -cmdrc(m1, m2) - char *m1, *m2; -{ - register Command *c; - FILE *rcfile; - int gotmachine = 0; - int l1 = strlen(m1); - int l2 = strlen(m2); - char m1save[64]; - - if (skiprc) - return; - - strcpy(m1save, m1); - m1 = m1save; - - if (rcname == 0) { - rcname = getenv("HOME"); - if (rcname) - 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(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); -} - -#if defined(IP_OPTIONS) && defined(IPPROTO_IP) - -/* - * 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: - * 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. - * - * Return values: - * - * Returns the address of the host to connect to. 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. - * - */ - unsigned long -sourceroute(arg, cpp, lenp) - char *arg; - char **cpp; - int *lenp; -{ - static char lsr[44]; -#ifdef sysV88 - static IOPTN ipopt; -#endif - char *cp, *cp2, *lsrp, *lsrep; - register int tmp; - struct in_addr sin_addr; - register struct hostent *host = 0; - register char c; - - /* - * Verify the arguments, and make sure we have - * at least 7 bytes for the option. - */ - if (cpp == NULL || lenp == NULL) - return((unsigned long)-1); - if (*cpp != NULL && *lenp < 7) - return((unsigned long)-1); - /* - * Decide whether we have a buffer passed to us, - * or if we need to use our own static buffer. - */ - if (*cpp) { - lsrp = *cpp; - lsrep = lsrp + *lenp; - } else { - *cpp = lsrp = lsr; - lsrep = lsrp + 44; - } - - cp = arg; - - /* - * Next, decide whether we have a loose source - * route or a strict source route, and fill in - * the begining of the option. - */ -#ifndef sysV88 - if (*cp == '!') { - cp++; - *lsrp++ = IPOPT_SSRR; - } else - *lsrp++ = IPOPT_LSRR; -#else - if (*cp == '!') { - cp++; - ipopt.io_type = IPOPT_SSRR; - } else - ipopt.io_type = IPOPT_LSRR; -#endif - - if (*cp != '@') - return((unsigned long)-1); - -#ifndef sysV88 - lsrp++; /* skip over length, we'll fill it in later */ - *lsrp++ = 4; -#endif - - cp++; - - sin_addr.s_addr = 0; - - for (c = 0;;) { - if (c == ':') - cp2 = 0; - else for (cp2 = cp; c = *cp2; cp2++) { - if (c == ',') { - *cp2++ = '\0'; - if (*cp2 == '@') - cp2++; - } else if (c == '@') { - *cp2++ = '\0'; - } else if (c == ':') { - *cp2++ = '\0'; - } else - continue; - break; - } - if (!c) - cp2 = 0; - - if ((tmp = inet_addr(cp)) != -1) { - sin_addr.s_addr = tmp; - } else if (host = gethostbyname(cp)) { -#if defined(h_addr) - memmove((caddr_t)&sin_addr, - host->h_addr_list[0], host->h_length); -#else - memmove((caddr_t)&sin_addr, host->h_addr, host->h_length); -#endif - } else { - *cpp = cp; - return(0); - } - memmove(lsrp, (char *)&sin_addr, 4); - lsrp += 4; - if (cp2) - cp = cp2; - else - break; - /* - * Check to make sure there is space for next address - */ - if (lsrp + 4 > lsrep) - return((unsigned long)-1); - } -#ifndef sysV88 - if ((*(*cpp+IPOPT_OLEN) = lsrp - *cpp) <= 7) { - *cpp = 0; - *lenp = 0; - return((unsigned long)-1); - } - *lsrp++ = IPOPT_NOP; /* 32 bit word align it */ - *lenp = lsrp - *cpp; -#else - ipopt.io_len = lsrp - *cpp; - if (ipopt.io_len <= 5) { /* Is 3 better ? */ - *cpp = 0; - *lenp = 0; - return((unsigned long)-1); - } - *lenp = sizeof(ipopt); - *cpp = (char *) &ipopt; -#endif - return(sin_addr.s_addr); -} -#endif diff --git a/secure/usr.bin/telnet/defines.h b/secure/usr.bin/telnet/defines.h deleted file mode 100644 index 0978173..0000000 --- a/secure/usr.bin/telnet/defines.h +++ /dev/null @@ -1,61 +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 - */ - -#define settimer(x) clocks.x = clocks.system++ - -#if !defined(TN3270) - -#define SetIn3270() - -#endif /* !defined(TN3270) */ - -#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/secure/usr.bin/telnet/externs.h b/secure/usr.bin/telnet/externs.h deleted file mode 100644 index 7c52be9..0000000 --- a/secure/usr.bin/telnet/externs.h +++ /dev/null @@ -1,482 +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 - */ - -#ifndef BSD -# define BSD 43 -#endif - -/* - * ucb stdio.h defines BSD as something wierd - */ -#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> -#if defined(CRAY) && !defined(NO_BSD_SETJMP) -#include <bsdsetjmp.h> -#endif -#ifndef FILIO_H -#include <sys/ioctl.h> -#else -#include <sys/filio.h> -#endif -#ifdef CRAY -# include <errno.h> -#endif /* CRAY */ -#ifdef USE_TERMIO -# ifndef VINTR -# ifdef SYSV_TERMIO -# include <sys/termio.h> -# else -# include <sys/termios.h> -# define termio termios -# endif -# endif -#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 - -#ifndef NO_STRING_H -#include <string.h> -#else -#include <strings.h> -#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 - -#ifndef CRAY -extern int errno; /* outside this world */ -#endif /* !CRAY */ - -#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 */ - flushout, /* flush output */ - connected, /* Are we connected to the other side? */ - globalmode, /* Mode tty should be in */ - In3270, /* Are we in 3270 mode? */ - 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 */ -#if defined(unix) -#if defined(TN3270) - cursesdata, /* Print out curses data flow */ - apitrace, /* Trace API transactions */ -#endif /* defined(TN3270) */ - termdata, /* Print out terminal data flow */ -#endif /* defined(unix) */ - debug; /* Debug level */ - -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) P((unsigned char *, int)); -extern int (*decrypt_input) P((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 - - -extern FILE - *NetTrace; /* Where debugging output goes */ -extern unsigned char - NetTraceFile[]; /* Name of file where debugging output goes */ -extern void - SetNetTrace P((char *)); /* Function to change where debugging goes */ - -extern jmp_buf - peerdied, - toplevel; /* For error conditions. */ - -extern void - command P((int, char *, int)), - Dump P((int, unsigned char *, int)), - init_3270 P((void)), - printoption P((char *, int, int)), - printsub P((int, unsigned char *, int)), - sendnaws P((void)), - setconnmode P((int)), - setcommandmode P((void)), - setneturg P((void)), - sys_telnet_init P((void)), - telnet P((char *)), - tel_enter_binary P((int)), - TerminalFlushOutput P((void)), - TerminalNewMode P((int)), - TerminalRestoreState P((void)), - TerminalSaveState P((void)), - tninit P((void)), - upcase P((char *)), - willoption P((int)), - wontoption P((int)); - -extern void - send_do P((int, int)), - send_dont P((int, int)), - send_will P((int, int)), - send_wont P((int, int)); - -extern void - lm_will P((unsigned char *, int)), - lm_wont P((unsigned char *, int)), - lm_do P((unsigned char *, int)), - lm_dont P((unsigned char *, int)), - lm_mode P((unsigned char *, int, int)); - -extern void - slc_init P((void)), - slcstate P((void)), - slc_mode_export P((void)), - slc_mode_import P((int)), - slc_import P((int)), - slc_export P((void)), - slc P((unsigned char *, int)), - slc_check P((void)), - slc_start_reply P((void)), - slc_add_reply P((int, int, int)), - slc_end_reply P((void)); -extern int - slc_update P((void)); - -extern void - env_opt P((unsigned char *, int)), - env_opt_start P((void)), - env_opt_start_info P((void)), - env_opt_add P((unsigned char *)), - env_opt_end P((int)); - -extern unsigned char - *env_default P((int, int)), - *env_getvalue P((unsigned char *)); - -extern int - get_status P((void)), - dosynch P((void)); - -extern cc_t - *tcval P((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(CRAY) || 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; - -/* Tn3270 section */ -#if defined(TN3270) - -extern int - HaveInput, /* Whether an asynchronous I/O indication came in */ - noasynchtty, /* Don't do signals on I/O (SIGURG, SIGIO) */ - noasynchnet, /* Don't do signals on I/O (SIGURG, SIGIO) */ - sigiocount, /* Count of SIGIO receptions */ - shell_active; /* Subshell is active */ - -extern char - *Ibackp, /* Oldest byte of 3270 data */ - Ibuf[], /* 3270 buffer */ - *Ifrontp, /* Where next 3270 byte goes */ - tline[], - *transcom; /* Transparent command */ - -extern int - settranscom P((int, char**)); - -extern void - inputAvailable P((int)); -#endif /* defined(TN3270) */ diff --git a/secure/usr.bin/telnet/fdset.h b/secure/usr.bin/telnet/fdset.h deleted file mode 100644 index 045bb72..0000000 --- a/secure/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/secure/usr.bin/telnet/general.h b/secure/usr.bin/telnet/general.h deleted file mode 100644 index 4efa951..0000000 --- a/secure/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/secure/usr.bin/telnet/main.c b/secure/usr.bin/telnet/main.c deleted file mode 100644 index 09ac26c..0000000 --- a/secure/usr.bin/telnet/main.c +++ /dev/null @@ -1,322 +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. - */ - -#ifndef lint -static char copyright[] = -"@(#) Copyright (c) 1988, 1990, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* not lint */ - -#ifndef lint -static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 5/30/95"; -#endif /* not lint */ - -#include <sys/types.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 0 -#define FORWARD -#endif - -/* - * Initialize variables. - */ - void -tninit() -{ - init_terminal(); - - init_network(); - - init_telnet(); - - init_sys(); - -#if defined(TN3270) - init_3270(); -#endif -} - - void -usage() -{ - fprintf(stderr, "Usage: %s %s%s%s%s\n", - prompt, -#ifdef AUTHENTICATION - "[-8] [-E] [-K] [-L] [-S tos] [-X atype] [-a] [-c] [-d] [-e char]", - "\n\t[-k realm] [-l user] [-f/-F] [-n tracefile] ", -#else - "[-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user]", - "\n\t[-n tracefile]", -#endif -#if defined(TN3270) && defined(unix) -# ifdef AUTHENTICATION - "[-noasynch] [-noasynctty]\n\t[-noasyncnet] [-r] [-t transcom] ", -# else - "[-noasynch] [-noasynctty] [-noasyncnet] [-r]\n\t[-t transcom]", -# endif -#else - "[-r] ", -#endif -#ifdef ENCRYPTION - "[-x] [host-name [port]]" -#else /* ENCRYPTION */ - "[host-name [port]]" -#endif /* ENCRYPTION */ - ); - exit(1); -} - -/* - * main. Parse arguments, invoke the protocol or command parser. - */ - - -main(argc, argv) - int argc; - char *argv[]; -{ - extern char *optarg; - extern int optind; - int ch; - char *user, *strrchr(); -#ifdef FORWARD - extern int forward_flags; -#endif /* FORWARD */ - - tninit(); /* Clear out things */ -#if defined(CRAY) && !defined(__STDC__) - _setlist_init(); /* Work around compiler bug */ -#endif - - TerminalSaveState(); - - if (prompt = strrchr(argv[0], '/')) - ++prompt; - else - prompt = argv[0]; - - user = NULL; - - rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE; - autologin = -1; - - while ((ch = getopt(argc, argv, "8EKLS:X:acde:fFk:l:n:rt:x")) != EOF) { - switch(ch) { - 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 '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': - autologin = 1; - break; - case 'c': - skiprc = 1; - break; - case 'd': - debug = 1; - break; - case 'e': - set_escape_char(optarg); - break; - case 'f': -#if defined(AUTHENTICATION) && 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 - break; - case 'F': -#if defined(AUTHENTICATION) && 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 - break; - case 'k': -#if defined(AUTHENTICATION) && 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 - break; - case 'l': - autologin = 1; - user = optarg; - break; - case 'n': -#if defined(TN3270) && defined(unix) - /* distinguish between "-n oasynch" and "-noasynch" */ - if (argv[optind - 1][0] == '-' && argv[optind - 1][1] - == 'n' && argv[optind - 1][2] == 'o') { - if (!strcmp(optarg, "oasynch")) { - noasynchtty = 1; - noasynchnet = 1; - } else if (!strcmp(optarg, "oasynchtty")) - noasynchtty = 1; - else if (!strcmp(optarg, "oasynchnet")) - noasynchnet = 1; - } else -#endif /* defined(TN3270) && defined(unix) */ - SetNetTrace(optarg); - break; - case 'r': - rlogin = '~'; - break; - case 't': -#if defined(TN3270) && defined(unix) - transcom = tline; - (void)strcpy(transcom, optarg); -#else - fprintf(stderr, - "%s: Warning: -t ignored, no TN3270 support.\n", - prompt); -#endif - break; - case 'x': -#ifdef ENCRYPTION - encrypt_auto(1); - decrypt_auto(1); -#else /* ENCRYPTION */ - fprintf(stderr, - "%s: Warning: -x ignored, no ENCRYPT support.\n", - prompt); -#endif /* ENCRYPTION */ - break; - case '?': - default: - usage(); - /* NOTREACHED */ - } - } - if (autologin == -1) - autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1; - - argc -= optind; - argv += optind; - - if (argc) { - char *args[7], **argp = args; - - if (argc > 2) - usage(); - *argp++ = prompt; - if (user) { - *argp++ = "-l"; - *argp++ = user; - } - *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 (;;) { -#ifdef TN3270 - if (shell_active) - shell_continue(); - else -#endif - command(1, 0, 0); - } -} diff --git a/secure/usr.bin/telnet/network.c b/secure/usr.bin/telnet/network.c deleted file mode 100644 index 0fe5cee..0000000 --- a/secure/usr.bin/telnet/network.c +++ /dev/null @@ -1,177 +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. - */ - -#ifndef lint -static char sccsid[] = "@(#)network.c 8.2 (Berkeley) 12/15/93"; -#endif /* not lint */ - -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/time.h> - -#include <errno.h> - -#include <arpa/telnet.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() -{ - 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() -{ - static struct timeval timeout = { 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() -{ - 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() -{ - register 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/secure/usr.bin/telnet/ring.c b/secure/usr.bin/telnet/ring.c deleted file mode 100644 index 37dfda8..0000000 --- a/secure/usr.bin/telnet/ring.c +++ /dev/null @@ -1,362 +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. - */ - -#ifndef lint -static char sccsid[] = "@(#)ring.c 8.2 (Berkeley) 5/30/95"; -#endif /* not lint */ - -/* - * This defines a structure for a ring buffer. - * - * The circular buffer has two parts: - *((( - * full: [consume, supply) - * empty: [supply, consume) - *]]] - * - */ - -#include <stdio.h> -#include <errno.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 */ - - ring_init(ring, buffer, count) -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; -{ - ring->mark = ring_decrement(ring, ring->supply, 1); -} - -/* - * Is the ring pointing to the mark? - */ - - int -ring_at_mark(ring) - 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; -{ - ring->mark = 0; -} - -/* - * Add characters from current segment to ring buffer. - */ - void -ring_supplied(ring, count) - 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, count) - 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 *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 *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 *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 *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, buffer, count) - Ring *ring; - unsigned char *buffer; - int count; -{ - int i; - - while (count) { - i = MIN(count, ring_empty_consecutive(ring)); - memmove(ring->supply, buffer, i); - ring_supplied(ring, i); - count -= i; - buffer += i; - } -} - -#ifdef notdef - -/* - * Move data from the "consume" portion of the ring buffer - */ - void -ring_consume_data(ring, buffer, count) - Ring *ring; - unsigned char *buffer; - int count; -{ - int i; - - while (count) { - i = MIN(count, ring_full_consecutive(ring)); - memmove(buffer, ring->consume, i); - ring_consumed(ring, i); - count -= i; - buffer += i; - } -} -#endif - -#ifdef ENCRYPTION - void -ring_encrypt(ring, encryptor) - Ring *ring; - void (*encryptor)(); -{ - 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/secure/usr.bin/telnet/ring.h b/secure/usr.bin/telnet/ring.h deleted file mode 100644 index 2a36781..0000000 --- a/secure/usr.bin/telnet/ring.h +++ /dev/null @@ -1,105 +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 - */ - -#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 P((Ring *ring, unsigned char *buffer, int count)); - -/* Data movement routines */ -extern void - ring_supply_data P((Ring *ring, unsigned char *buffer, int count)); -#ifdef notdef -extern void - ring_consume_data P((Ring *ring, unsigned char *buffer, int count)); -#endif - -/* Buffer state transition routines */ -extern void - ring_supplied P((Ring *ring, int count)), - ring_consumed P((Ring *ring, int count)); - -/* Buffer state query routines */ -extern int - ring_empty_count P((Ring *ring)), - ring_empty_consecutive P((Ring *ring)), - ring_full_count P((Ring *ring)), - ring_full_consecutive P((Ring *ring)); - -#ifdef ENCRYPTION -extern void - ring_encrypt P((Ring *ring, void (*func)())), - ring_clearto P((Ring *ring)); -#endif /* ENCRYPTION */ - -extern void - ring_clear_mark(), - ring_mark(); diff --git a/secure/usr.bin/telnet/sys_bsd.c b/secure/usr.bin/telnet/sys_bsd.c deleted file mode 100644 index 3ede7c4..0000000 --- a/secure/usr.bin/telnet/sys_bsd.c +++ /dev/null @@ -1,1220 +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. - */ - -#ifndef lint -static char sccsid[] = "@(#)sys_bsd.c 8.4 (Berkeley) 5/30/95"; -#endif /* not lint */ - -/* - * The following routines try to encapsulate what is system dependent - * (at least between 4.x and dos) which is used in telnet.c. - */ - - -#include <fcntl.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/socket.h> -#include <signal.h> -#include <errno.h> -#include <arpa/telnet.h> - -#include "ring.h" - -#include "fdset.h" - -#include "defines.h" -#include "externs.h" -#include "types.h" - -#if defined(CRAY) || (defined(USE_TERMIO) && !defined(SYSV_TERMIO)) -#define SIG_FUNC_RET void -#else -#define SIG_FUNC_RET int -#endif - -#ifdef SIGINFO -extern SIG_FUNC_RET ayt_status(); -#endif - -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 }; -extern struct termio new_tc; - -# 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 ibits, obits, xbits; - - - void -init_sys() -{ - tout = fileno(stdout); - tin = fileno(stdin); - FD_ZERO(&ibits); - FD_ZERO(&obits); - FD_ZERO(&xbits); - - errno = 0; -} - - - int -TerminalWrite(buf, n) - char *buf; - int n; -{ - return write(tout, buf, n); -} - - int -TerminalRead(buf, n) - char *buf; - int n; -{ - return read(tin, buf, n); -} - -/* - * - */ - - int -TerminalAutoFlush() -{ -#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 - */ - -extern void xmitAO(), xmitEL(), xmitEC(), intp(), sendbrk(); - - int -TerminalSpecialChars(c) - 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() -{ -#ifdef TIOCFLUSH - (void) ioctl(fileno(stdout), TIOCFLUSH, (char *) 0); -#else - (void) ioctl(fileno(stdout), TCFLSH, (char *) 0); -#endif -} - - void -TerminalSaveState() -{ -#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(func) - register 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() -{ -#ifndef USE_TERMIO - ntc = otc; - nltc = oltc; - nttyb.sg_kill = ottyb.sg_kill; - nttyb.sg_erase = ottyb.sg_erase; -#else /* USE_TERMIO */ - memmove(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 */ -} - -#ifdef notdef -void -TerminalRestoreState() -{ -} -#endif - -/* - * 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(f) - register 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; -# ifdef notdef - if (crlf) - tmp_tc.c_iflag &= ~ICRNL; -# endif -#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 SIGTSTP - SIG_FUNC_RET susp(); -#endif /* SIGTSTP */ -#ifdef SIGINFO - SIG_FUNC_RET ayt(); -#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 - SIG_FUNC_RET ayt_status(); - - (void) signal(SIGINFO, ayt_status); -#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 - -#if (!defined(TN3270)) || ((!defined(NOT43)) || defined(PUTCHAR)) -# if !defined(sysV88) - ioctl(tin, FIONBIO, (char *)&onoff); - ioctl(tout, FIONBIO, (char *)&onoff); -# endif -#endif /* (!defined(TN3270)) || ((!defined(NOT43)) || defined(PUTCHAR)) */ -#if defined(TN3270) - if (noasynchtty == 0) { - ioctl(tin, FIOASYNC, (char *)&onoff); - } -#endif /* defined(TN3270) */ - -} - -/* - * 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(ispeed, ospeed) - long *ispeed; - long *ospeed; -{ -#ifdef DECODE_BAUD - register struct termspeeds *tp; -#endif /* DECODE_BAUD */ - register 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(rows, cols) - long *rows, *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(fd) - int fd; -{ - return close(fd); -} - - - void -NetNonblockingIO(fd, onoff) - int fd; - int onoff; -{ - ioctl(fd, FIONBIO, (char *)&onoff); -} - -#if defined(TN3270) - void -NetSigIO(fd, onoff) - int fd; - int onoff; -{ - ioctl(fd, FIOASYNC, (char *)&onoff); /* hear about input */ -} - - void -NetSetPgrp(fd) - int fd; -{ - int myPid; - - myPid = getpid(); - fcntl(fd, F_SETOWN, myPid); -} -#endif /*defined(TN3270)*/ - -/* - * Various signal handling routines. - */ - - /* ARGSUSED */ - SIG_FUNC_RET -deadpeer(sig) - int sig; -{ - setcommandmode(); - longjmp(peerdied, -1); -} - - /* ARGSUSED */ - SIG_FUNC_RET -intr(sig) - int sig; -{ - if (localchars) { - intp(); - return; - } - setcommandmode(); - longjmp(toplevel, -1); -} - - /* ARGSUSED */ - SIG_FUNC_RET -intr2(sig) - int sig; -{ - if (localchars) { -#ifdef KLUDGELINEMODE - if (kludgelinemode) - sendbrk(); - else -#endif - sendabort(); - return; - } -} - -#ifdef SIGTSTP - /* ARGSUSED */ - SIG_FUNC_RET -susp(sig) - int sig; -{ - if ((rlogin != _POSIX_VDISABLE) && rlogin_susp()) - return; - if (localchars) - sendsusp(); -} -#endif - -#ifdef SIGWINCH - /* ARGSUSED */ - SIG_FUNC_RET -sendwin(sig) - int sig; -{ - if (connected) { - sendnaws(); - } -} -#endif - -#ifdef SIGINFO - /* ARGSUSED */ - SIG_FUNC_RET -ayt(sig) - int sig; -{ - if (connected) - sendayt(); - else - ayt_status(); -} -#endif - - - void -sys_telnet_init() -{ - (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(TN3270) - if (noasynchnet == 0) { /* DBX can't handle! */ - NetSigIO(net, 1); - NetSetPgrp(net); - } -#endif /* defined(TN3270) */ - -#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(netin, netout, netex, ttyin, ttyout, poll) - int poll; /* If 0, then block until something to do */ -{ - register int c; - /* 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 - * time (TN3270 mode only). - */ - int returnValue = 0; - static struct timeval TimeValue = { 0 }; - - if (netout) { - FD_SET(net, &obits); - } - if (ttyout) { - FD_SET(tout, &obits); - } -#if defined(TN3270) - if (ttyin) { - FD_SET(tin, &ibits); - } -#else /* defined(TN3270) */ - if (ttyin) { - FD_SET(tin, &ibits); - } -#endif /* defined(TN3270) */ -#if defined(TN3270) - if (netin) { - FD_SET(net, &ibits); - } -# else /* !defined(TN3270) */ - if (netin) { - FD_SET(net, &ibits); - } -# endif /* !defined(TN3270) */ - if (netex) { - FD_SET(net, &xbits); - } - if ((c = select(16, &ibits, &obits, &xbits, - (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; - } -# if defined(TN3270) - /* - * we can get EBADF if we were in transparent - * mode, and the transcom process died. - */ - if (errno == EBADF) { - /* - * zero the bits (even though kernel does it) - * to make sure we are selecting on the right - * ones. - */ - FD_ZERO(&ibits); - FD_ZERO(&obits); - FD_ZERO(&xbits); - return 0; - } -# endif /* defined(TN3270) */ - /* I don't like this, does it ever happen? */ - printf("sleep(5) from telnet, after select\r\n"); - sleep(5); - } - return 0; - } - - /* - * Any urgent data? - */ - if (FD_ISSET(net, &xbits)) { - FD_CLR(net, &xbits); - SYNCHing = 1; - (void) ttyflush(1); /* flush already enqueued data */ - } - - /* - * Something to read from the network... - */ - if (FD_ISSET(net, &ibits)) { - int canread; - - FD_CLR(net, &ibits); - 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, &ibits)) { - FD_CLR(tin, &ibits); - 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, &obits)) { - FD_CLR(net, &obits); - returnValue |= netflush(); - } - if (FD_ISSET(tout, &obits)) { - FD_CLR(tout, &obits); - returnValue |= (ttyflush(SYNCHing|flushout) > 0); - } - - return returnValue; -} diff --git a/secure/usr.bin/telnet/telnet.1 b/secure/usr.bin/telnet/telnet.1 deleted file mode 100644 index b996fea..0000000 --- a/secure/usr.bin/telnet/telnet.1 +++ /dev/null @@ -1,1366 +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 -.\" -.Dd June 1, 1994 -.Dt TELNET 1 -.Os BSD 4.2 -.Sh NAME -.Nm telnet -.Nd user interface to the -.Tn TELNET -protocol -.Sh SYNOPSIS -.Nm telnet -.Op Fl 8EFKLacdfrx -.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 -.Oo -.Ar host -.Op port -.Oc -.Sh DESCRIPTION -The -.Nm telnet -command -is used to communicate with another host using the -.Tn TELNET -protocol. -If -.Nm telnet -is invoked without the -.Ar host -argument, it enters command mode, -indicated by its prompt -.Pq Nm 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 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 -BINARY option to be negotiated on output. -.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 /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 escape char -Sets the initial -.Nm -.Nm telnet -escape character to -.Ar escape char. -If -.Ar escape char -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. -.ne 1i -.It Fl k Ar realm -If Kerberos authentication is being used, the -.Fl k -option requests that telnet obtain tickets for the remote host in -realm 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 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 -e option. -.It Fl x -Turns on encryption of the data stream if possible. This -option is not available outside of the United States and -Canada. -.It Ar host -Indicates the official name, an alias, or the Internet address -of a remote host. -.It Ar port -Indicates a port number (address of an application). If a number is -not specified, the default -.Nm telnet -port is used. -.El -.Pp -When in rlogin mode, a line of the form ~. disconnects from the -remote host; ~ is the telnet escape character. -Similarly, the line ~^Z suspends the telnet session. -The line ~^] escapes to the normal telnet escape prompt. -.Pp -Once a connection has been opened, -.Nm telnet -will attempt to enable the -.Dv TELNET LINEMODE -option. -If this fails, then -.Nm telnet -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\*(Lq; 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 telnet -command mode may be entered by typing the -.Nm telnet -\*(Lqescape character\*(Rq (initially \*(Lq^]\*(Rq). -When in command mode, the normal terminal editing conventions are available. -.Pp -The following -.Nm telnet -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 -auth command are as follows: -.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 -Note: Because of export controls, the -.Dv TELNET ENCRYPT -option is not supported outside of the United States and Canada. -.Pp -Valid arguments for the encrypt command are as follows: -.Bl -tag -width Ar -.It Ic disable Ar type Ic [input|output] -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 Ic [input|output] -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 Ic [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 Ic [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 -the variables that my 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. -.br -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\*(Lq 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\*(Lq 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. -.ne 1i -.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 -.Oo Op Fl l -.Ar user -.Oc Ns Oo Fl -.Ar port Oc -.Xc -Open a connection to the named host. -If no port number -is specified, -.Nm telnet -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 ) -or an Internet address specified in the \*(Lqdot notation\*(Rq (see -.Xr inet 3 ) . -The -.Op 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 telnet -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 telnet -commands and are processed as if they had been typed -in manually to the -.Nm telnet -command prompt. -.It Ic quit -Close any open -.Tn TELNET -session and exit -.Nm telnet . -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 telnet -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. -.ne 1i -.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 telnet -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 "Are You There" -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 telnet -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 telnet -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below), -.Sy and -if -.Nm telnet -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 telnet -escape character (initially \*(Lq^[\*(Rq) which causes entry -into -.Nm telnet -command mode (when connected to a remote system). -.It Ic flushoutput -If -.Nm telnet -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 -.Tn TELNET -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 telnet -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 telnet -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below), -.Ic and -if -.Nm telnet -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 telnet -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Lq 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 telnet -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 telnet -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Lq 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 -.Tn TELNET -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 telnet command. The initial state is to -disable the 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 kill 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 kill character is taken to be -the terminal's -.Ic stop -character. -.It Ic susp -If -.Nm telnet -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. -.ne 1i -.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 telnet -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Lq 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 slc Ar state -The -.Ic slc -command (Set Local Characters) is used to set -or change the state of the 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 telnet -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 telnet . -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 telnet -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 telnet -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. -.sp -.Pp -Note: Because of export controls, the -.Dv TELNET ENCRYPT -option is not supported outside the United States and Canada. -.It Ic autologin -If the remote side supports the -.Dv TELNET AUTHENTICATION -option -.Tn TELNET -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 -.Ar 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 -.B 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 telnet -protocol processing (having to do with -.Tn TELNET -options). -The initial value for this toggle is -.Dv FALSE . -.ne 1i -.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 -.Tn TELNET -escape sequence is preceded by a '*' to aid in locating them. -.It Ic skiprc -When the skiprc toggle is -.Dv TRUE , -.Tn TELNET -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 , -.Tn TELNET -prints out a message each time encryption is enabled or -disabled. The initial value for this toggle is -.Dv FALSE. -Note: Because of export controls, data encryption -is not supported outside of the United States and Canada. -.It Ic \&? -Displays the legal -.Ic toggle -commands. -.El -.It Ic z -Suspend -.Nm telnet . -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 -.Ic command -is omitted, then an interactive -subshell is invoked. -.It Ic \&? Op Ar command -Get help. With no arguments, -.Nm telnet -prints a help summary. -If a command is specified, -.Nm telnet -will print the help information for just that command. -.El -.Sh ENVIRONMENT -.Nm Telnet -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 FILES -.Bl -tag -width ~/.telnetrc -compact -.It Pa ~/.telnetrc -user customized telnet startup values -.El -.Sh HISTORY -The -.Nm Telnet -command appeared in -.Bx 4.2 . -.Sh NOTES -.Pp -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/secure/usr.bin/telnet/telnet.c b/secure/usr.bin/telnet/telnet.c deleted file mode 100644 index 4402fdd..0000000 --- a/secure/usr.bin/telnet/telnet.c +++ /dev/null @@ -1,2650 +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. - */ - -#ifndef lint -static char sccsid[] = "@(#)telnet.c 8.4 (Berkeley) 5/30/95"; -#endif /* not lint */ - -#include <sys/types.h> - -#if defined(unix) -#include <signal.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. - */ -#endif /* defined(unix) */ - -#include <arpa/telnet.h> - -#include <ctype.h> - -#include "ring.h" - -#include "defines.h" -#include "externs.h" -#include "types.h" -#include "general.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, - In3270, /* Are we in 3270 mode? */ - ISend, /* trying to send network data in */ - debug = 0, - crmod, - netdata, /* Print out network data flow */ - crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ -#if defined(TN3270) - noasynchtty = 0,/* User specified "-noasynch" on command line */ - noasynchnet = 0,/* User specified "-noasynch" on command line */ - askedSGA = 0, /* We have talked about suppress go ahead */ -#endif /* defined(TN3270) */ - 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; - -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 = { 0 }; -jmp_buf peerdied; - -int flushline; -int linemode; - -#ifdef KLUDGELINEMODE -int kludgelinemode = 1; -#endif - -/* - * The following are some clocks used to decide how to interpret - * the relationship between various variables. - */ - -Clocks clocks; - -#ifdef notdef -Modelist modelist[] = { - { "telnet command mode", COMMAND_LINE }, - { "character-at-a-time mode", 0 }, - { "character-at-a-time mode (local echo)", LOCAL_ECHO|LOCAL_CHARS }, - { "line-by-line mode (remote echo)", LINE | LOCAL_CHARS }, - { "line-by-line mode", LINE | LOCAL_ECHO | LOCAL_CHARS }, - { "line-by-line mode (local echoing suppressed)", LINE | LOCAL_CHARS }, - { "3270 mode", 0 }, -}; -#endif - - -/* - * Initialize telnet environment. - */ - - void -init_telnet() -{ - env_init(); - - SB_CLEAR(); - ClearArray(options); - - connected = In3270 = ISend = localflow = donebinarytoggle = 0; -#if defined(AUTHENTICATION) || defined(ENCRYPTION) - auth_encrypt_connect(connected); -#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ - 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; -} - - -#ifdef notdef -#include <varargs.h> - - /*VARARGS*/ - static void -printring(va_alist) - va_dcl -{ - va_list ap; - char buffer[100]; /* where things go */ - char *ptr; - char *format; - char *string; - Ring *ring; - int i; - - va_start(ap); - - ring = va_arg(ap, Ring *); - format = va_arg(ap, char *); - ptr = buffer; - - while ((i = *format++) != 0) { - if (i == '%') { - i = *format++; - switch (i) { - case 'c': - *ptr++ = va_arg(ap, int); - break; - case 's': - string = va_arg(ap, char *); - ring_supply_data(ring, buffer, ptr-buffer); - ring_supply_data(ring, string, strlen(string)); - ptr = buffer; - break; - case 0: - ExitString("printring: trailing %%.\n", 1); - /*NOTREACHED*/ - default: - ExitString("printring: unknown format character.\n", 1); - /*NOTREACHED*/ - } - } else { - *ptr++ = i; - } - } - ring_supply_data(ring, buffer, ptr-buffer); -} -#endif - -/* - * 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(c, init) - register int c, 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(c, init) - register int c, 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(c, init) - register int c, 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(c, init) - register int c, 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(option) - 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: -# if defined(TN3270) - /* - * The following is a pain in the rear-end. - * Various IBM servers (some versions of Wiscnet, - * possibly Fibronics/Spartacus, and who knows who - * else) will NOT allow us to send "DO SGA" too early - * in the setup proceedings. On the other hand, - * 4.2 servers (telnetd) won't set SGA correctly. - * So, we are stuck. Empirically (but, based on - * a VERY small sample), the IBM servers don't send - * out anything about ECHO, so we postpone our sending - * "DO SGA" until we see "WILL ECHO" (which 4.2 servers - * DO send). - */ - { - if (askedSGA == 0) { - askedSGA = 1; - if (my_want_state_is_dont(TELOPT_SGA)) - send_do(TELOPT_SGA, 1); - } - } - /* Fall through */ - case TELOPT_EOR: -#endif /* defined(TN3270) */ - case TELOPT_BINARY: - case TELOPT_SGA: - settimer(modenegotiated); - /* FALL THROUGH */ - case TELOPT_STATUS: -#if defined(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(option) - 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; - /* FALL THROUGH */ -#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(option) - 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; - -# if defined(TN3270) - case TELOPT_EOR: /* end of record */ -# endif /* defined(TN3270) */ - 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; - -#if defined(AUTHENTICATION) - case TELOPT_AUTHENTICATION: - if (autologin) - new_state_ok = 1; - break; -#endif - - case TELOPT_XDISPLOC: /* X Display location */ - if (env_getvalue((unsigned char *)"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(option) - 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 seperated 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 char *name_unknown = "UNKNOWN"; -static char *unknown[] = { 0, 0 }; - - char ** -mklist(buf, name) - char *buf, *name; -{ - register int n; - register char c, *cp, **argvp, *cp2, **argv, **avt; - - if (name) { - if ((int)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(argv); - else - return(unknown); -} - - int -is_unique(name, as, ae) - register char *name, **as, **ae; -{ - register char **ap; - register 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*/ - int -setupterm(tname, fd, errp) - char *tname; - int fd, *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; - - char * -gettermname() -{ - char *tname; - static char **tnamep = 0; - static char **next; - int err; - - if (resettermname) { - resettermname = 0; - if (tnamep && tnamep != unknown) - free(tnamep); - if ((tname = (char *)env_getvalue((unsigned char *)"TERM")) && - (setupterm(tname, 1, &err) == 0)) { - tnamep = mklist(termbuf, tname); - } else { - if (tname && ((int)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() -{ - 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 { - char *name; - unsigned char temp[50]; - int len; - -#if defined(TN3270) - if (tn3270_ttype()) { - return; - } -#endif /* defined(TN3270) */ - name = gettermname(); - len = strlen(name) + 4 + 2; - if (len < NETROOM()) { - sprintf((char *)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%d,%d%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((unsigned char *)"DISPLAY")) == NULL) { - /* - * Something happened, we no longer have a DISPLAY - * variable. So, turn off the option. - */ - send_wont(TELOPT_XDISPLOC, 1); - break; - } - sprintf((char *)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; - -#if defined(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(cmd, len) - 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() > 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(cmd, len) - 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(cmd, len) - 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() > 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(cmd, len) - 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(cmd, len, init) - unsigned char *cmd; - int len, 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() > 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() -{ - register 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() -{ - printf("Special characters are %s values\n", - slc_mode == SLC_IMPORT ? "remote default" : - slc_mode == SLC_EXPORT ? "local" : - "remote"); -} - - void -slc_mode_export() -{ - slc_mode = SLC_EXPORT; - if (my_state_is_will(TELOPT_LINEMODE)) - slc_export(); -} - - void -slc_mode_import(def) - 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(def) - int def; -{ - if (NETROOM() > 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() -{ - register 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(cp, len) - register unsigned char *cp; - int len; -{ - register struct spc *spcp; - register 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() -{ - register 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() -{ - slc_replyp = slc_reply; - *slc_replyp++ = IAC; - *slc_replyp++ = SB; - *slc_replyp++ = TELOPT_LINEMODE; - *slc_replyp++ = LM_SLC; -} - - void -slc_add_reply(func, flags, value) - 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() -{ - register 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() -{ - register 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(buf, len) - register unsigned char *buf; - register int len; -{ - register unsigned char *ep = 0, *epc = 0; - register 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; - } - /* FALL THROUGH */ -# 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... - */ - /* FALL THROUGH */ -#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++; - /*FALL THROUGH*/ - 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() -{ - 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() -{ - env_opt_start(); - if (opt_replyp) - opt_replyp[-1] = TELQUAL_INFO; -} - - void -env_opt_add(ep) - register unsigned char *ep; -{ - register 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) - { - register 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(ep) - 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(emptyok) - register int emptyok; -{ - register 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() -{ - register int c; - register int scc; - register 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; - } - /* Else, fall through */ - - case TS_DATA: - if (c == IAC) { - telrcv_state = TS_IAC; - break; - } -# if defined(TN3270) - if (In3270) { - *Ifrontp++ = c; - while (scc > 0) { - c = *sbp++ & 0377, scc--; count++; -#ifdef ENCRYPTION - if (decrypt_input) - c = (*decrypt_input)(c); -#endif /* ENCRYPTION */ - if (c == IAC) { - telrcv_state = TS_IAC; - break; - } - *Ifrontp++ = c; - } - } else -# endif /* defined(TN3270) */ - /* - * 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; - -# if defined(TN3270) - case EOR: - if (In3270) { - if (Ibackp == Ifrontp) { - Ibackp = Ifrontp = Ibuf; - ISend = 0; /* should have been! */ - } else { - Ibackp += DataFromNetwork(Ibackp, Ifrontp-Ibackp, 1); - ISend = 1; - } - } - printoption("RCVD", IAC, EOR); - break; -# endif /* defined(TN3270) */ - - case IAC: -# if !defined(TN3270) - TTYADD(IAC); -# else /* !defined(TN3270) */ - if (In3270) { - *Ifrontp++ = IAC; - } else { - TTYADD(IAC); - } -# endif /* !defined(TN3270) */ - 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); - SetIn3270(); - telrcv_state = TS_DATA; - continue; - - case TS_WONT: - printoption("RCVD", WONT, c); - wontoption(c); - SetIn3270(); - telrcv_state = TS_DATA; - continue; - - case TS_DO: - printoption("RCVD", DO, c); - dooption(c); - SetIn3270(); - 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) */ - SetIn3270(); - 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 */ - SetIn3270(); - 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 */ - SetIn3270(); - telrcv_state = TS_DATA; - } - } - } - if (count) - ring_consumed(&netiring, count); - return returnValue||count; -} - -static int bol = 1, local = 0; - - int -rlogin_susp() -{ - if (local) { - local = 0; - bol = 1; - command(0, "z\n", 2); - return(1); - } - return(0); -} - - static int -telsnd() -{ - int tcc; - int count; - int returnValue = 0; - unsigned char *tbp; - - tcc = 0; - count = 0; - while (NETROOM() > 2) { - register int sc; - register 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, (char *)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 (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. - * - */ - - - int -Scheduler(block) - int block; /* should we block in the select ? */ -{ - /* 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 - * time (TN3270 mode only). - */ - 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); - -#if defined(TN3270) - ttyin = ring_empty_count(&ttyiring) && (shell_active == 0); -#else /* defined(TN3270) */ - ttyin = ring_empty_count(&ttyiring); -#endif /* defined(TN3270) */ - -#if defined(TN3270) - netin = ring_empty_count(&netiring); -# else /* !defined(TN3270) */ - netin = !ISend && ring_empty_count(&netiring); -# endif /* !defined(TN3270) */ - - netex = !SYNCHing; - - /* If we have seen a signal recently, reset things */ -# if defined(TN3270) && defined(unix) - if (HaveInput) { - HaveInput = 0; - (void) signal(SIGIO, inputAvailable); - } -#endif /* defined(TN3270) && defined(unix) */ - - /* 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)) { -# if defined(TN3270) - if (In3270) { - int c; - - c = DataFromTerminal(ttyiring.consume, - ring_full_consecutive(&ttyiring)); - if (c) { - returnValue = 1; - ring_consumed(&ttyiring, c); - } - } else { -# endif /* defined(TN3270) */ - returnValue |= telsnd(); -# if defined(TN3270) - } -# endif /* defined(TN3270) */ - } - - if (ring_full_count(&netiring)) { -# if !defined(TN3270) - returnValue |= telrcv(); -# else /* !defined(TN3270) */ - returnValue = Push3270(); -# endif /* !defined(TN3270) */ - } - return returnValue; -} - -/* - * Select from tty and network... - */ - void -telnet(user) - char *user; -{ - sys_telnet_init(); - -#if defined(AUTHENTICATION) || defined(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 /* defined(AUTHENTICATION) || defined(ENCRYPTION) */ -# if !defined(TN3270) - if (telnetport) { -#if defined(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((unsigned char *)"DISPLAY")) - send_will(TELOPT_XDISPLOC, 1); - if (eight) - tel_enter_binary(eight); - } -# endif /* !defined(TN3270) */ - -# if !defined(TN3270) - for (;;) { - int schedValue; - - while ((schedValue = Scheduler(0)) != 0) { - if (schedValue == -1) { - setcommandmode(); - return; - } - } - - if (Scheduler(1) == -1) { - setcommandmode(); - return; - } - } -# else /* !defined(TN3270) */ - for (;;) { - int schedValue; - - while (!In3270 && !shell_active) { - if (Scheduler(1) == -1) { - setcommandmode(); - return; - } - } - - while ((schedValue = Scheduler(0)) != 0) { - if (schedValue == -1) { - setcommandmode(); - return; - } - } - /* If there is data waiting to go out to terminal, don't - * schedule any more data for the terminal. - */ - if (ring_full_count(&ttyoring)) { - schedValue = 1; - } else { - if (shell_active) { - if (shell_continue() == 0) { - ConnectScreen(); - } - } else if (In3270) { - schedValue = DoTerminalOutput(); - } - } - if (schedValue && (shell_active == 0)) { - if (Scheduler(1) == -1) { - setcommandmode(); - return; - } - } - } -# endif /* !defined(TN3270) */ -} - -#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(current) - 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 */ - { - register 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() -{ -#if 0 /* XXX */ - register 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)) <= netobuf.send) { - thisitem = next; - } - - /* Now, thisitem is first before/at boundary. */ - - good = netobuf; /* where the good bytes go */ - - while (netoring.add > 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); - } - } - -#endif /* 0 */ -} - -/* - * These routines add various telnet commands to the data stream. - */ - - static void -doflush() -{ - 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() -{ - NET2ADD(IAC, AO); - printoption("SENT", IAC, AO); - if (autoflush) { - doflush(); - } -} - - - void -xmitEL() -{ - NET2ADD(IAC, EL); - printoption("SENT", IAC, EL); -} - - void -xmitEC() -{ - NET2ADD(IAC, EC); - printoption("SENT", IAC, EC); -} - - - int -dosynch() -{ - 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() -{ - unsigned char tmp[16]; - register 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() -{ - NET2ADD(IAC, IP); - printoption("SENT", IAC, IP); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(); - } -} - - void -sendbrk() -{ - NET2ADD(IAC, BREAK); - printoption("SENT", IAC, BREAK); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(); - } -} - - void -sendabort() -{ - NET2ADD(IAC, ABORT); - printoption("SENT", IAC, ABORT); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(); - } -} - - void -sendsusp() -{ - NET2ADD(IAC, SUSP); - printoption("SENT", IAC, SUSP); - flushline = 1; - if (autoflush) { - doflush(); - } - if (autosynch) { - dosynch(); - } -} - - void -sendeof() -{ - NET2ADD(IAC, xEOF); - printoption("SENT", IAC, xEOF); -} - - void -sendayt() -{ - NET2ADD(IAC, AYT); - printoption("SENT", IAC, AYT); -} - -/* - * Send a window size update to the remote system. - */ - - void -sendnaws() -{ - long rows, cols; - unsigned char tmp[16]; - register 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(rw) - int rw; -{ - if (rw&1) - send_do(TELOPT_BINARY, 1); - if (rw&2) - send_will(TELOPT_BINARY, 1); -} - - void -tel_leave_binary(rw) - int rw; -{ - if (rw&1) - send_dont(TELOPT_BINARY, 1); - if (rw&2) - send_wont(TELOPT_BINARY, 1); -} diff --git a/secure/usr.bin/telnet/terminal.c b/secure/usr.bin/telnet/terminal.c deleted file mode 100644 index b5ceeda..0000000 --- a/secure/usr.bin/telnet/terminal.c +++ /dev/null @@ -1,240 +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. - */ - -#ifndef lint -static char sccsid[] = "@(#)terminal.c 8.2 (Berkeley) 2/16/95"; -#endif /* not lint */ - -#include <arpa/telnet.h> -#include <sys/types.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() -{ - 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(drop) - int drop; -{ - register 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() -{ - extern int linemode; - int mode = 0; -#ifdef KLUDGELINEMODE - extern int kludgelinemode; -#endif - - if (In3270) - return(MODE_FLOW); - - 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(force) - int force; -{ -#ifdef ENCRYPTION - static int enc_passwd = 0; -#endif /* ENCRYPTION */ - register 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() -{ - TerminalNewMode(-1); -} diff --git a/secure/usr.bin/telnet/tn3270.c b/secure/usr.bin/telnet/tn3270.c deleted file mode 100644 index a75cd1e..0000000 --- a/secure/usr.bin/telnet/tn3270.c +++ /dev/null @@ -1,411 +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. - */ - -#ifndef lint -static char sccsid[] = "@(#)tn3270.c 8.2 (Berkeley) 5/30/95"; -#endif /* not lint */ - -#include <sys/types.h> -#include <arpa/telnet.h> - -#include "general.h" - -#include "defines.h" -#include "ring.h" -#include "externs.h" -#include "fdset.h" - -#if defined(TN3270) - -#include "../ctlr/screen.h" -#include "../general/globals.h" - -#include "../sys_curses/telextrn.h" -#include "../ctlr/externs.h" - -#if defined(unix) -int - HaveInput, /* There is input available to scan */ - cursesdata, /* Do we dump curses data? */ - sigiocount; /* Number of times we got a SIGIO */ - -char tline[200]; -char *transcom = 0; /* transparent mode command (default: none) */ -#endif /* defined(unix) */ - -char Ibuf[8*BUFSIZ], *Ifrontp, *Ibackp; - -static char sb_terminal[] = { IAC, SB, - TELOPT_TTYPE, TELQUAL_IS, - 'I', 'B', 'M', '-', '3', '2', '7', '8', '-', '2', - IAC, SE }; -#define SBTERMMODEL 13 - -static int - Sent3270TerminalType; /* Have we said we are a 3270? */ - -#endif /* defined(TN3270) */ - - - void -init_3270() -{ -#if defined(TN3270) -#if defined(unix) - HaveInput = 0; - sigiocount = 0; -#endif /* defined(unix) */ - Sent3270TerminalType = 0; - Ifrontp = Ibackp = Ibuf; - init_ctlr(); /* Initialize some things */ - init_keyboard(); - init_screen(); - init_system(); -#endif /* defined(TN3270) */ -} - - -#if defined(TN3270) - -/* - * DataToNetwork - queue up some data to go to network. If "done" is set, - * then when last byte is queued, we add on an IAC EOR sequence (so, - * don't call us with "done" until you want that done...) - * - * We actually do send all the data to the network buffer, since our - * only client needs for us to do that. - */ - - int -DataToNetwork(buffer, count, done) - register char *buffer; /* where the data is */ - register int count; /* how much to send */ - int done; /* is this the last of a logical block */ -{ - register int loop, c; - int origCount; - - origCount = count; - - while (count) { - /* If not enough room for EORs, IACs, etc., wait */ - if (NETROOM() < 6) { - fd_set o; - - FD_ZERO(&o); - netflush(); - while (NETROOM() < 6) { - FD_SET(net, &o); - (void) select(net+1, (fd_set *) 0, &o, (fd_set *) 0, - (struct timeval *) 0); - netflush(); - } - } - c = ring_empty_count(&netoring); - if (c > count) { - c = count; - } - loop = c; - while (loop) { - if (((unsigned char)*buffer) == IAC) { - break; - } - buffer++; - loop--; - } - if ((c = c-loop)) { - ring_supply_data(&netoring, buffer-c, c); - count -= c; - } - if (loop) { - NET2ADD(IAC, IAC); - count--; - buffer++; - } - } - - if (done) { - NET2ADD(IAC, EOR); - netflush(); /* try to move along as quickly as ... */ - } - return(origCount - count); -} - - -#if defined(unix) - void -inputAvailable(signo) - int signo; -{ - HaveInput = 1; - sigiocount++; -} -#endif /* defined(unix) */ - - void -outputPurge() -{ - (void) ttyflush(1); -} - - -/* - * The following routines are places where the various tn3270 - * routines make calls into telnet.c. - */ - -/* - * DataToTerminal - queue up some data to go to terminal. - * - * Note: there are people who call us and depend on our processing - * *all* the data at one time (thus the select). - */ - - int -DataToTerminal(buffer, count) - register char *buffer; /* where the data is */ - register int count; /* how much to send */ -{ - register int c; - int origCount; - - origCount = count; - - while (count) { - if (TTYROOM() == 0) { -#if defined(unix) - fd_set o; - - FD_ZERO(&o); -#endif /* defined(unix) */ - (void) ttyflush(0); - while (TTYROOM() == 0) { -#if defined(unix) - FD_SET(tout, &o); - (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, - (struct timeval *) 0); -#endif /* defined(unix) */ - (void) ttyflush(0); - } - } - c = TTYROOM(); - if (c > count) { - c = count; - } - ring_supply_data(&ttyoring, buffer, c); - count -= c; - buffer += c; - } - return(origCount); -} - - -/* - * Push3270 - Try to send data along the 3270 output (to screen) direction. - */ - - int -Push3270() -{ - int save = ring_full_count(&netiring); - - if (save) { - if (Ifrontp+save > Ibuf+sizeof Ibuf) { - if (Ibackp != Ibuf) { - memmove(Ibuf, Ibackp, Ifrontp-Ibackp); - Ifrontp -= (Ibackp-Ibuf); - Ibackp = Ibuf; - } - } - if (Ifrontp+save < Ibuf+sizeof Ibuf) { - (void)telrcv(); - } - } - return save != ring_full_count(&netiring); -} - - -/* - * Finish3270 - get the last dregs of 3270 data out to the terminal - * before quitting. - */ - - void -Finish3270() -{ - while (Push3270() || !DoTerminalOutput()) { -#if defined(unix) - HaveInput = 0; -#endif /* defined(unix) */ - ; - } -} - - -/* StringToTerminal - output a null terminated string to the terminal */ - - void -StringToTerminal(s) - char *s; -{ - int count; - - count = strlen(s); - if (count) { - (void) DataToTerminal(s, count); /* we know it always goes... */ - } -} - - -#if ((!defined(NOT43)) || defined(PUTCHAR)) -/* _putchar - output a single character to the terminal. This name is so that - * curses(3x) can call us to send out data. - */ - - void -_putchar(c) - char c; -{ -#if defined(sun) /* SunOS 4.0 bug */ - c &= 0x7f; -#endif /* defined(sun) */ - if (cursesdata) { - Dump('>', &c, 1); - } - if (!TTYROOM()) { - (void) DataToTerminal(&c, 1); - } else { - TTYADD(c); - } -} -#endif /* ((!defined(NOT43)) || defined(PUTCHAR)) */ - - void -SetIn3270() -{ - if (Sent3270TerminalType && my_want_state_is_will(TELOPT_BINARY) - && my_want_state_is_do(TELOPT_BINARY) && !donebinarytoggle) { - if (!In3270) { - In3270 = 1; - Init3270(); /* Initialize 3270 functions */ - /* initialize terminal key mapping */ - InitTerminal(); /* Start terminal going */ - setconnmode(0); - } - } else { - if (In3270) { - StopScreen(1); - In3270 = 0; - Stop3270(); /* Tell 3270 we aren't here anymore */ - setconnmode(0); - } - } -} - -/* - * tn3270_ttype() - * - * Send a response to a terminal type negotiation. - * - * Return '0' if no more responses to send; '1' if a response sent. - */ - - int -tn3270_ttype() -{ - /* - * Try to send a 3270 type terminal name. Decide which one based - * on the format of our screen, and (in the future) color - * capaiblities. - */ - InitTerminal(); /* Sets MaxNumberColumns, MaxNumberLines */ - if ((MaxNumberLines >= 24) && (MaxNumberColumns >= 80)) { - Sent3270TerminalType = 1; - if ((MaxNumberLines >= 27) && (MaxNumberColumns >= 132)) { - MaxNumberLines = 27; - MaxNumberColumns = 132; - sb_terminal[SBTERMMODEL] = '5'; - } else if (MaxNumberLines >= 43) { - MaxNumberLines = 43; - MaxNumberColumns = 80; - sb_terminal[SBTERMMODEL] = '4'; - } else if (MaxNumberLines >= 32) { - MaxNumberLines = 32; - MaxNumberColumns = 80; - sb_terminal[SBTERMMODEL] = '3'; - } else { - MaxNumberLines = 24; - MaxNumberColumns = 80; - sb_terminal[SBTERMMODEL] = '2'; - } - NumberLines = 24; /* before we start out... */ - NumberColumns = 80; - ScreenSize = NumberLines*NumberColumns; - if ((MaxNumberLines*MaxNumberColumns) > MAXSCREENSIZE) { - ExitString("Programming error: MAXSCREENSIZE too small.\n", - 1); - /*NOTREACHED*/ - } - printsub('>', sb_terminal+2, sizeof sb_terminal-2); - ring_supply_data(&netoring, sb_terminal, sizeof sb_terminal); - return 1; - } else { - return 0; - } -} - -#if defined(unix) - int -settranscom(argc, argv) - int argc; - char *argv[]; -{ - int i; - - if (argc == 1 && transcom) { - transcom = 0; - } - if (argc == 1) { - return 1; - } - transcom = tline; - (void) strcpy(transcom, argv[1]); - for (i = 2; i < argc; ++i) { - (void) strcat(transcom, " "); - (void) strcat(transcom, argv[i]); - } - return 1; -} -#endif /* defined(unix) */ - -#endif /* defined(TN3270) */ diff --git a/secure/usr.bin/telnet/types.h b/secure/usr.bin/telnet/types.h deleted file mode 100644 index 191d311..0000000 --- a/secure/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/secure/usr.bin/telnet/utilities.c b/secure/usr.bin/telnet/utilities.c deleted file mode 100644 index 06d08a4..0000000 --- a/secure/usr.bin/telnet/utilities.c +++ /dev/null @@ -1,939 +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. - */ - -#ifndef lint -static char sccsid[] = "@(#)utilities.c 8.3 (Berkeley) 5/30/95"; -#endif /* not lint */ - -#define TELOPTS -#define TELCMDS -#define SLC_NAMES -#include <arpa/telnet.h> -#include <sys/types.h> -#include <sys/time.h> - -#include <ctype.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(argument) - register char *argument; -{ - register 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(fd, level, option, yesno) - int fd, level, option, yesno; -{ -#ifndef NOT43 - return setsockopt(fd, level, option, - (char *)&yesno, sizeof yesno); -#else /* NOT43 */ - if (yesno == 0) { /* Can't do that in 4.2! */ - fprintf(stderr, "Error: attempt to turn off an option 0x%x.\n", - option); - return -1; - } - return setsockopt(fd, level, option, 0, 0); -#endif /* NOT43 */ -} - -/* - * The following are routines used to print out debugging information. - */ - -unsigned char NetTraceFile[256] = "(standard output)"; - - void -SetNetTrace(file) - register 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(direction, buffer, length) - 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; - extern pettydump; - - 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(direction, cmd, option) - char *direction; - int cmd, 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 { - register 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() -{ - register 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(direction, pointer, length) - char direction; /* '<' or '>' */ - unsigned char *pointer; /* where suboption data sits */ - int length; /* length of suboption data */ -{ - register int i; - char buf[512]; - 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) { - register 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; - -#if defined(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: { - register char *cp; - register 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: - { - register 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: - def_case: - 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). - */ - - void -EmptyTerminal() -{ -#if defined(unix) - fd_set o; - - FD_ZERO(&o); -#endif /* defined(unix) */ - - if (TTYBYTES() == 0) { -#if defined(unix) - FD_SET(tout, &o); - (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, - (struct timeval *) 0); /* wait for TTLOWAT */ -#endif /* defined(unix) */ - } else { - while (TTYBYTES()) { - (void) ttyflush(0); -#if defined(unix) - FD_SET(tout, &o); - (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, - (struct timeval *) 0); /* wait for TTLOWAT */ -#endif /* defined(unix) */ - } - } -} - - void -SetForExit() -{ - setconnmode(0); -#if defined(TN3270) - if (In3270) { - Finish3270(); - } -#else /* defined(TN3270) */ - do { - (void)telrcv(); /* Process any incoming data */ - EmptyTerminal(); - } while (ring_full_count(&netiring)); /* While there is any */ -#endif /* defined(TN3270) */ - setcommandmode(); - fflush(stdout); - fflush(stderr); -#if defined(TN3270) - if (In3270) { - StopScreen(1); - } -#endif /* defined(TN3270) */ - setconnmode(0); - EmptyTerminal(); /* Flush the path to the tty */ - setcommandmode(); -} - - void -Exit(returnCode) - int returnCode; -{ - SetForExit(); - exit(returnCode); -} - - void -ExitString(string, returnCode) - char *string; - int returnCode; -{ - SetForExit(); - fwrite(string, 1, strlen(string), stderr); - exit(returnCode); -} |