diff options
Diffstat (limited to 'secure/usr.bin')
24 files changed, 16610 insertions, 0 deletions
diff --git a/secure/usr.bin/bdes/Makefile b/secure/usr.bin/bdes/Makefile new file mode 100644 index 0000000..9166f72 --- /dev/null +++ b/secure/usr.bin/bdes/Makefile @@ -0,0 +1,5 @@ +# @(#)Makefile 8.1 (Berkeley) 6/6/93 + +PROG= bdes + +.include <bsd.prog.mk> diff --git a/secure/usr.bin/bdes/bdes.1 b/secure/usr.bin/bdes/bdes.1 new file mode 100644 index 0000000..eecd81b --- /dev/null +++ b/secure/usr.bin/bdes/bdes.1 @@ -0,0 +1,304 @@ +.\" Copyright (c) 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Matt Bishop of Dartmouth College. +.\" +.\" 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. +.\" +.\" @(#)bdes.1 8.1 (Berkeley) 6/29/93 +.\" +.TH BDES 1 "June 29, 1993" +.UC 6 +.SH NAME +bdes \- encrypt/decrypt using the Data Encryption Standard +.SH SYNOPSIS +.nf +.ft B +bdes [ \-abdp ] [ \-F N ] [ \-f N ] [ \-k key ] +.ti +5 +[ \-m N ] [ \-o N ] [ \-v vector ] +.ft R +.fi +.SH DESCRIPTION +.I Bdes +implements all DES modes of operation described in FIPS PUB 81, +including alternative cipher feedback mode and both authentication +modes. +.I Bdes +reads from the standard input and writes to the standard output. +By default, the input is encrypted using cipher block chaining mode. +Using the same key for encryption and decryption preserves plain text. +.PP +All modes but the electronic code book mode require an initialization +vector; if none is supplied, the zero vector is used. +If no +.I key +is specified on the command line, the user is prompted for one (see +.IR getpass (3) +for more details). +.PP +The options are as follows: +.TP +\-a +The key and initialization vector strings are to be taken as ASCII, +suppressing the special interpretation given to leading ``0X'', ``0x'', +``0B'', and ``0b'' characters. +This flag applies to +.I both +the key and initialization vector. +.TP +\-b +Use electronic code book mode. +.TP +\-d +Decrypt the input. +.TP +\-F +Use +.IR N -bit +alternative cipher feedback mode. +Currently +.I N +must be a multiple of 7 between 7 and 56 inclusive (this does not conform +to the alternative CFB mode specification). +.TP +\-f +Use +.IR N -bit +cipher feedback mode. +Currently +.I N +must be a multiple of 8 between 8 and 64 inclusive (this does not conform +to the standard CFB mode specification). +.TP +\-k +Use +.I key +as the cryptographic key. +.TP +\-m +Compute a message authentication code (MAC) of +.I N +bits on the input. +The value of +.I N +must be between 1 and 64 inclusive; if +.I N +is not a multiple of 8, enough 0 bits will be added to pad the MAC length +to the nearest multiple of 8. +Only the MAC is output. +MACs are only available in cipher block chaining mode or in cipher feedback +mode. +.TP +\-o +Use +.IR N -bit +output feedback mode. +Currently +.I N +must be a multiple of 8 between 8 and 64 inclusive (this does not conform +to the OFB mode specification). +.TP +\-p +Disable the resetting of the parity bit. +This flag forces the parity bit of the key to be used as typed, rather than +making each character be of odd parity. +It is used only if the key is given in ASCII. +.TP +\-v +Set the initialization vector to +.IR vector ; +the vector is interpreted in the same way as the key. +The vector is ignored in electronic codebook mode. +.PP +The key and initialization vector are taken as sequences of ASCII +characters which are then mapped into their bit representations. +If either begins with ``0X'' or ``0x'', +that one is taken as a sequence of hexadecimal digits indicating the +bit pattern; +if either begins with ``0B'' or ``0b'', +that one is taken as a sequence of binary digits indicating the bit pattern. +In either case, +only the leading 64 bits of the key or initialization vector +are used, +and if fewer than 64 bits are provided, enough 0 bits are appended +to pad the key to 64 bits. +.PP +According to the DES standard, the low-order bit of each character in the +key string is deleted. +Since most ASCII representations set the high-order bit to 0, simply +deleting the low-order bit effectively reduces the size of the key space +from 2\u\s-356\s0\d to 2\u\s-348\s0\d keys. +To prevent this, the high-order bit must be a function depending in part +upon the low-order bit; so, the high-order bit is set to whatever value +gives odd parity. +This preserves the key space size. +Note this resetting of the parity bit is +.I not +done if the key is given in binary or hex, and can be disabled for ASCII +keys as well. +.PP +The DES is considered a very strong cryptosystem, and other than table lookup +attacks, key search attacks, and Hellman's time-memory tradeoff (all of which +are very expensive and time-consuming), no cryptanalytic methods for breaking +the DES are known in the open literature. +No doubt the choice of keys and key security are the most vulnerable aspect +of +.IR bdes . +.SH IMPLEMENTATION NOTES +For implementors wishing to write software compatible with this program, +the following notes are provided. +This software is believed to be compatible with the implementation of the +data encryption standard distributed by Sun Microsystems, Inc. +.PP +In the ECB and CBC modes, plaintext is encrypted in units of 64 bits (8 bytes, +also called a block). +To ensure that the plaintext file is encrypted correctly, +.I bdes +will (internally) append from 1 to 8 bytes, the last byte containing an +integer stating how many bytes of that final block are from the plaintext +file, and encrypt the resulting block. +Hence, when decrypting, the last block may contain from 0 to 7 characters +present in the plaintext file, and the last byte tells how many. +Note that if during decryption the last byte of the file does not contain an +integer between 0 and 7, either the file has been corrupted or an incorrect +key has been given. +A similar mechanism is used for the OFB and CFB modes, except that those +simply require the length of the input to be a multiple of the mode size, +and the final byte contains an integer between 0 and one less than the number +of bytes being used as the mode. +(This was another reason that the mode size must be a multiple of 8 for those +modes.) +.PP +Unlike Sun's implementation, unused bytes of that last block are not filled +with random data, but instead contain what was in those byte positions in +the preceding block. +This is quicker and more portable, and does not weaken the encryption +significantly. +.PP +If the key is entered in ASCII, the parity bits of the key characters are set +so that each key character is of odd parity. +Unlike Sun's implementation, it is possible to enter binary or hexadecimal +keys on the command line, and if this is done, the parity bits are +.I not +reset. +This allows testing using arbitrary bit patterns as keys. +.PP +The Sun implementation always uses an initialization vector of 0 +(that is, all zeroes). +By default, +.I bdes +does too, but this may be changed from the command line. +.SH SEE ALSO +crypt(1), crypt(3), getpass(3) +.sp +.IR "Data Encryption Standard" , +Federal Information Processing Standard #46, +National Bureau of Standards, +U.S. Department of Commerce, +Washington DC +(Jan. 1977) +.sp +.IR "DES Modes of Operation" , +Federal Information Processing Standard #81, +National Bureau of Standards, +U.S. Department of Commerce +Washington DC +(Dec. 1980) +.sp +Dorothy Denning, +.IR "Cryptography and Data Security" , +Addison-Wesley Publishing Co., +Reading, MA +\(co1982. +.sp +Matt Bishop, +.IR "Implementation Notes on bdes(1)" , +Technical Report PCS-TR-91-158, +Department of Mathematics and Computer Science, +Dartmouth College, +Hanover, NH 03755 +(Apr. 1991). +.SH DISCLAIMER +.nf +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. +.fi +.SH BUGS +There is a controversy raging over whether the DES will still be secure +in a few years. +The advent of special-purpose hardware could reduce the cost of any of the +methods of attack named above so that they are no longer computationally +infeasible. +.PP +As the key or key schedule is stored in memory, the encryption can be +compromised if memory is readable. +Additionally, programs which display programs' arguments may compromise the +key and initialization vector, if they are specified on the command line. +To avoid this +.I bdes +overwrites its arguments, however, the obvious race cannot currently be +avoided. +.PP +Certain specific keys should be avoided because they introduce potential +weaknesses; these keys, called the +.I weak +and +.I semiweak +keys, are (in hex notation, where p is either 0 or 1, and P is either +e or f): +.sp +.nf +.in +10n +.ta \w'0x0p0p0p0p0p0p0p0p\0\0\0'u+5n +0x0p0p0p0p0p0p0p0p 0x0p1P0p1P0p0P0p0P +0x0pep0pep0pfp0pfp 0x0pfP0pfP0pfP0pfP +0x1P0p1P0p0P0p0P0p 0x1P1P1P1P0P0P0P0P +0x1Pep1Pep0Pfp0Pfp 0x1PfP1PfP0PfP0PfP +0xep0pep0pfp0pfp0p 0xep1Pep1pfp0Pfp0P +0xepepepepepepepep 0xepfPepfPfpfPfpfP +0xfP0pfP0pfP0pfP0p 0xfP1PfP1PfP0PfP0P +0xfPepfPepfPepfPep 0xfPfPfPfPfPfPfPfP +.fi +.in -10n +.sp +This is inherent in the DES algorithm (see Moore and Simmons, +\*(LqCycle structure of the DES with weak and semi-weak keys,\*(Rq +.I "Advances in Cryptology \- Crypto '86 Proceedings" , +Springer-Verlag New York, \(co1987, pp. 9-32.) diff --git a/secure/usr.bin/bdes/bdes.c b/secure/usr.bin/bdes/bdes.c new file mode 100644 index 0000000..f702e01 --- /dev/null +++ b/secure/usr.bin/bdes/bdes.c @@ -0,0 +1,1046 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Matt Bishop of Dartmouth College. + * + * The United States Government has rights in this work pursuant + * to contract no. NAG 2-680 between the National Aeronautics and + * Space Administration and Dartmouth College. + * + * 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) 1991, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)bdes.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +/* + * BDES -- DES encryption package for Berkeley Software Distribution 4.4 + * options: + * -a key is in ASCII + * -b use ECB (electronic code book) mode + * -d invert (decrypt) input + * -f b use b-bit CFB (cipher feedback) mode + * -F b use b-bit CFB (cipher feedback) alternative mode + * -k key use key as the cryptographic key + * -m b generate a MAC of length b + * -o b use b-bit OFB (output feedback) mode + * -p don't reset the parity bit + * -v v use v as the initialization vector (ignored for ECB) + * note: the last character of the last block is the integer indicating + * how many characters of that block are to be output + * + * Author: Matt Bishop + * Department of Mathematics and Computer Science + * Dartmouth College + * Hanover, NH 03755 + * Email: Matt.Bishop@dartmouth.edu + * ...!decvax!dartvax!Matt.Bishop + * + * See Technical Report PCS-TR91-158, Department of Mathematics and Computer + * Science, Dartmouth College, for a detailed description of the implemen- + * tation and differences between it and Sun's. The DES is described in + * FIPS PUB 46, and the modes in FIPS PUB 81 (see either the manual page + * or the technical report for a complete reference). + */ + +#include <errno.h> +#include <unistd.h> +#include <stdio.h> +#include <ctype.h> +#include <stdlib.h> +#include <string.h> + +/* + * BSD and System V systems offer special library calls that do + * block moves and fills, so if possible we take advantage of them + */ +#define MEMCPY(dest,src,len) bcopy((src),(dest),(len)) +#define MEMZERO(dest,len) bzero((dest),(len)) + +/* Hide the calls to the primitive encryption routines. */ +#define FASTWAY +#ifdef FASTWAY +#define DES_KEY(buf) \ + if (des_setkey(buf)) \ + err("des_setkey", 0); +#define DES_XFORM(buf) \ + if (des_cipher(buf, buf, 0L, (inverse ? -1 : 1))) \ + err("des_cipher", 0); +#else +#define DES_KEY(buf) { \ + char bits1[64]; /* bits of key */ \ + expand(buf, bits1); \ + if (setkey(bits1)) \ + err("setkey", 0); \ + } +#define DES_XFORM(buf) { \ + char bits1[64]; /* bits of message */ \ + expand(buf, bits1); \ + if (encrypt(bits1, inverse)) \ + err("encrypt", 0); \ + compress(bits1, buf); \ + } +#endif + +/* + * this does an error-checking write + */ +#define READ(buf, n) fread(buf, sizeof(char), n, stdin) +#define WRITE(buf,n) \ + if (fwrite(buf, sizeof(char), n, stdout) != n) \ + err(bn, NULL); + +/* + * some things to make references easier + */ +typedef char Desbuf[8]; +#define CHAR(x,i) (x[i]) +#define UCHAR(x,i) (x[i]) +#define BUFFER(x) (x) +#define UBUFFER(x) (x) + +/* + * global variables and related macros + */ +#define KEY_DEFAULT 0 /* interpret radix of key from key */ +#define KEY_ASCII 1 /* key is in ASCII characters */ +int keybase = KEY_DEFAULT; /* how to interpret the key */ + +enum { /* encrypt, decrypt, authenticate */ + MODE_ENCRYPT, MODE_DECRYPT, MODE_AUTHENTICATE +} mode = MODE_ENCRYPT; +enum { /* ecb, cbc, cfb, cfba, ofb? */ + ALG_ECB, ALG_CBC, ALG_CFB, ALG_OFB, ALG_CFBA +} alg = ALG_CBC; + +Desbuf ivec; /* initialization vector */ +char bits[] = { /* used to extract bits from a char */ + '\200', '\100', '\040', '\020', '\010', '\004', '\002', '\001' +}; +int inverse; /* 0 to encrypt, 1 to decrypt */ +int macbits = -1; /* number of bits in authentication */ +int fbbits = -1; /* number of feedback bits */ +int pflag; /* 1 to preserve parity bits */ + +main(ac, av) + int ac; /* arg count */ + char **av; /* arg vector */ +{ + extern int optind; /* option (argument) number */ + extern char *optarg; /* argument to option if any */ + register int i; /* counter in a for loop */ + register char *p; /* used to obtain the key */ + Desbuf msgbuf; /* I/O buffer */ + int kflag; /* command-line encryptiooon key */ + int argc; /* the real arg count */ + char **argv; /* the real argument vector */ + + /* + * Hide the arguments from ps(1) by making private copies of them + * and clobbering the global (visible to ps(1)) ones. + */ + argc = ac; + ac = 1; + argv = malloc((argc + 1) * sizeof(char *)); + for (i = 0; i < argc; ++i) { + argv[i] = strdup(av[i]); + MEMZERO(av[i], strlen(av[i])); + } + argv[argc] = NULL; + + /* initialize the initialization vctor */ + MEMZERO(ivec, 8); + + /* process the argument list */ + kflag = 0; + while ((i = getopt(argc, argv, "abdF:f:k:m:o:pv:")) != EOF) + switch(i) { + case 'a': /* key is ASCII */ + keybase = KEY_ASCII; + break; + case 'b': /* use ECB mode */ + alg = ALG_ECB; + break; + case 'd': /* decrypt */ + mode = MODE_DECRYPT; + break; + case 'F': /* use alternative CFB mode */ + alg = ALG_CFBA; + if ((fbbits = setbits(optarg, 7)) > 56 || fbbits == 0) + err(-1, "-F: number must be 1-56 inclusive"); + else if (fbbits == -1) + err(-1, "-F: number must be a multiple of 7"); + break; + case 'f': /* use CFB mode */ + alg = ALG_CFB; + if ((fbbits = setbits(optarg, 8)) > 64 || fbbits == 0) + err(-1, "-f: number must be 1-64 inclusive"); + else if (fbbits == -1) + err(-1, "-f: number must be a multiple of 8"); + break; + case 'k': /* encryption key */ + kflag = 1; + cvtkey(BUFFER(msgbuf), optarg); + break; + case 'm': /* number of bits for MACing */ + mode = MODE_AUTHENTICATE; + if ((macbits = setbits(optarg, 1)) > 64) + err(-1, "-m: number must be 0-64 inclusive"); + break; + case 'o': /* use OFB mode */ + alg = ALG_OFB; + if ((fbbits = setbits(optarg, 8)) > 64 || fbbits == 0) + err(-1, "-o: number must be 1-64 inclusive"); + else if (fbbits == -1) + err(-1, "-o: number must be a multiple of 8"); + break; + case 'p': /* preserve parity bits */ + pflag = 1; + break; + case 'v': /* set initialization vector */ + cvtkey(BUFFER(ivec), optarg); + break; + default: /* error */ + usage(); + } + + if (!kflag) { + /* + * if the key's not ASCII, assume it is + */ + keybase = KEY_ASCII; + /* + * get the key + */ + p = getpass("Enter key: "); + /* + * copy it, nul-padded, into the key area + */ + cvtkey(BUFFER(msgbuf), p); + } + + makekey(msgbuf); + inverse = (alg == ALG_CBC || alg == ALG_ECB) && mode == MODE_DECRYPT; + + switch(alg) { + case ALG_CBC: + switch(mode) { + case MODE_AUTHENTICATE: /* authenticate using CBC mode */ + cbcauth(); + break; + case MODE_DECRYPT: /* decrypt using CBC mode */ + cbcdec(); + break; + case MODE_ENCRYPT: /* encrypt using CBC mode */ + cbcenc(); + break; + } + break; + case ALG_CFB: + switch(mode) { + case MODE_AUTHENTICATE: /* authenticate using CFB mode */ + cfbauth(); + break; + case MODE_DECRYPT: /* decrypt using CFB mode */ + cfbdec(); + break; + case MODE_ENCRYPT: /* encrypt using CFB mode */ + cfbenc(); + break; + } + break; + case ALG_CFBA: + switch(mode) { + case MODE_AUTHENTICATE: /* authenticate using CFBA mode */ + err(-1, "can't authenticate with CFBA mode"); + break; + case MODE_DECRYPT: /* decrypt using CFBA mode */ + cfbadec(); + break; + case MODE_ENCRYPT: /* encrypt using CFBA mode */ + cfbaenc(); + break; + } + break; + case ALG_ECB: + switch(mode) { + case MODE_AUTHENTICATE: /* authenticate using ECB mode */ + err(-1, "can't authenticate with ECB mode"); + break; + case MODE_DECRYPT: /* decrypt using ECB mode */ + ecbdec(); + break; + case MODE_ENCRYPT: /* encrypt using ECB mode */ + ecbenc(); + break; + } + break; + case ALG_OFB: + switch(mode) { + case MODE_AUTHENTICATE: /* authenticate using OFB mode */ + err(-1, "can't authenticate with OFB mode"); + break; + case MODE_DECRYPT: /* decrypt using OFB mode */ + ofbdec(); + break; + case MODE_ENCRYPT: /* encrypt using OFB mode */ + ofbenc(); + break; + } + break; + } + exit(0); +} + +/* + * print a warning message and, possibly, terminate + */ +err(n, s) + int n; /* offending block number */ + char *s; /* the message */ +{ + if (n > 0) + (void)fprintf(stderr, "bdes (block %d): ", n); + else + (void)fprintf(stderr, "bdes: "); + (void)fprintf(stderr, "%s\n", s ? s : strerror(errno)); + exit(1); +} + +/* + * map a hex character to an integer + */ +tobinhex(c, radix) + char c; /* char to be converted */ + int radix; /* base (2 to 16) */ +{ + switch(c) { + case '0': return(0x0); + case '1': return(0x1); + case '2': return(radix > 2 ? 0x2 : -1); + case '3': return(radix > 3 ? 0x3 : -1); + case '4': return(radix > 4 ? 0x4 : -1); + case '5': return(radix > 5 ? 0x5 : -1); + case '6': return(radix > 6 ? 0x6 : -1); + case '7': return(radix > 7 ? 0x7 : -1); + case '8': return(radix > 8 ? 0x8 : -1); + case '9': return(radix > 9 ? 0x9 : -1); + case 'A': case 'a': return(radix > 10 ? 0xa : -1); + case 'B': case 'b': return(radix > 11 ? 0xb : -1); + case 'C': case 'c': return(radix > 12 ? 0xc : -1); + case 'D': case 'd': return(radix > 13 ? 0xd : -1); + case 'E': case 'e': return(radix > 14 ? 0xe : -1); + case 'F': case 'f': return(radix > 15 ? 0xf : -1); + } + /* + * invalid character + */ + return(-1); +} + +/* + * convert the key to a bit pattern + */ +cvtkey(obuf, ibuf) + char *obuf; /* bit pattern */ + char *ibuf; /* the key itself */ +{ + register int i, j; /* counter in a for loop */ + int nbuf[64]; /* used for hex/key translation */ + + /* + * just switch on the key base + */ + switch(keybase) { + case KEY_ASCII: /* ascii to integer */ + (void)strncpy(obuf, ibuf, 8); + return; + case KEY_DEFAULT: /* tell from context */ + /* + * leading '0x' or '0X' == hex key + */ + if (ibuf[0] == '0' && (ibuf[1] == 'x' || ibuf[1] == 'X')) { + ibuf = &ibuf[2]; + /* + * now translate it, bombing on any illegal hex digit + */ + for (i = 0; ibuf[i] && i < 16; i++) + if ((nbuf[i] = tobinhex(ibuf[i], 16)) == -1) + err(-1, "bad hex digit in key"); + while (i < 16) + nbuf[i++] = 0; + for (i = 0; i < 8; i++) + obuf[i] = + ((nbuf[2*i]&0xf)<<4) | (nbuf[2*i+1]&0xf); + /* preserve parity bits */ + pflag = 1; + return; + } + /* + * leading '0b' or '0B' == binary key + */ + if (ibuf[0] == '0' && (ibuf[1] == 'b' || ibuf[1] == 'B')) { + ibuf = &ibuf[2]; + /* + * now translate it, bombing on any illegal binary digit + */ + for (i = 0; ibuf[i] && i < 16; i++) + if ((nbuf[i] = tobinhex(ibuf[i], 2)) == -1) + err(-1, "bad binary digit in key"); + while (i < 64) + nbuf[i++] = 0; + for (i = 0; i < 8; i++) + for (j = 0; j < 8; j++) + obuf[i] = (obuf[i]<<1)|nbuf[8*i+j]; + /* preserve parity bits */ + pflag = 1; + return; + } + /* + * no special leader -- ASCII + */ + (void)strncpy(obuf, ibuf, 8); + } +} + +/* + * convert an ASCII string into a decimal number: + * 1. must be between 0 and 64 inclusive + * 2. must be a valid decimal number + * 3. must be a multiple of mult + */ +setbits(s, mult) + char *s; /* the ASCII string */ + int mult; /* what it must be a multiple of */ +{ + register char *p; /* pointer in a for loop */ + register int n = 0; /* the integer collected */ + + /* + * skip white space + */ + while (isspace(*s)) + s++; + /* + * get the integer + */ + for (p = s; *p; p++) { + if (isdigit(*p)) + n = n * 10 + *p - '0'; + else { + err(-1, "bad decimal digit in MAC length"); + } + } + /* + * be sure it's a multiple of mult + */ + return((n % mult != 0) ? -1 : n); +} + +/***************** + * DES FUNCTIONS * + *****************/ +/* + * This sets the DES key and (if you're using the deszip version) + * the direction of the transformation. This uses the Sun + * to map the 64-bit key onto the 56 bits that the key schedule + * generation routines use: the old way, which just uses the user- + * supplied 64 bits as is, and the new way, which resets the parity + * bit to be the same as the low-order bit in each character. The + * new way generates a greater variety of key schedules, since many + * systems set the parity (high) bit of each character to 0, and the + * DES ignores the low order bit of each character. + */ +makekey(buf) + Desbuf buf; /* key block */ +{ + register int i, j; /* counter in a for loop */ + register int par; /* parity counter */ + + /* + * if the parity is not preserved, flip it + */ + if (!pflag) { + for (i = 0; i < 8; i++) { + par = 0; + for (j = 1; j < 8; j++) + if ((bits[j]&UCHAR(buf, i)) != 0) + par++; + if ((par&01) == 01) + UCHAR(buf, i) = UCHAR(buf, i)&0177; + else + UCHAR(buf, i) = (UCHAR(buf, i)&0177)|0200; + } + } + + DES_KEY(UBUFFER(buf)); +} + +/* + * This encrypts using the Electronic Code Book mode of DES + */ +ecbenc() +{ + register int n; /* number of bytes actually read */ + register int bn; /* block number */ + Desbuf msgbuf; /* I/O buffer */ + + for (bn = 0; (n = READ(BUFFER(msgbuf), 8)) == 8; bn++) { + /* + * do the transformation + */ + DES_XFORM(UBUFFER(msgbuf)); + WRITE(BUFFER(msgbuf), 8); + } + /* + * at EOF or last block -- in either ase, the last byte contains + * the character representation of the number of bytes in it + */ + bn++; + MEMZERO(&CHAR(msgbuf, n), 8 - n); + CHAR(msgbuf, 7) = n; + DES_XFORM(UBUFFER(msgbuf)); + WRITE(BUFFER(msgbuf), 8); + +} + +/* + * This decrypts using the Electronic Code Book mode of DES + */ +ecbdec() +{ + register int n; /* number of bytes actually read */ + register int c; /* used to test for EOF */ + register int bn; /* block number */ + Desbuf msgbuf; /* I/O buffer */ + + for (bn = 1; (n = READ(BUFFER(msgbuf), 8)) == 8; bn++) { + /* + * do the transformation + */ + DES_XFORM(UBUFFER(msgbuf)); + /* + * if the last one, handle it specially + */ + if ((c = getchar()) == EOF) { + n = CHAR(msgbuf, 7); + if (n < 0 || n > 7) + err(bn, "decryption failed (block corrupted)"); + } + else + (void)ungetc(c, stdin); + WRITE(BUFFER(msgbuf), n); + } + if (n > 0) + err(bn, "decryption failed (incomplete block)"); +} + +/* + * This encrypts using the Cipher Block Chaining mode of DES + */ +cbcenc() +{ + register int n; /* number of bytes actually read */ + register int bn; /* block number */ + Desbuf msgbuf; /* I/O buffer */ + + /* + * do the transformation + */ + for (bn = 1; (n = READ(BUFFER(msgbuf), 8)) == 8; bn++) { + for (n = 0; n < 8; n++) + CHAR(msgbuf, n) ^= CHAR(ivec, n); + DES_XFORM(UBUFFER(msgbuf)); + MEMCPY(BUFFER(ivec), BUFFER(msgbuf), 8); + WRITE(BUFFER(msgbuf), 8); + } + /* + * at EOF or last block -- in either case, the last byte contains + * the character representation of the number of bytes in it + */ + bn++; + MEMZERO(&CHAR(msgbuf, n), 8 - n); + CHAR(msgbuf, 7) = n; + for (n = 0; n < 8; n++) + CHAR(msgbuf, n) ^= CHAR(ivec, n); + DES_XFORM(UBUFFER(msgbuf)); + WRITE(BUFFER(msgbuf), 8); + +} + +/* + * This decrypts using the Cipher Block Chaining mode of DES + */ +cbcdec() +{ + register int n; /* number of bytes actually read */ + Desbuf msgbuf; /* I/O buffer */ + Desbuf ibuf; /* temp buffer for initialization vector */ + register int c; /* used to test for EOF */ + register int bn; /* block number */ + + for (bn = 0; (n = READ(BUFFER(msgbuf), 8)) == 8; bn++) { + /* + * do the transformation + */ + MEMCPY(BUFFER(ibuf), BUFFER(msgbuf), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (c = 0; c < 8; c++) + UCHAR(msgbuf, c) ^= UCHAR(ivec, c); + MEMCPY(BUFFER(ivec), BUFFER(ibuf), 8); + /* + * if the last one, handle it specially + */ + if ((c = getchar()) == EOF) { + n = CHAR(msgbuf, 7); + if (n < 0 || n > 7) + err(bn, "decryption failed (block corrupted)"); + } + else + (void)ungetc(c, stdin); + WRITE(BUFFER(msgbuf), n); + } + if (n > 0) + err(bn, "decryption failed (incomplete block)"); +} + +/* + * This authenticates using the Cipher Block Chaining mode of DES + */ +cbcauth() +{ + register int n, j; /* number of bytes actually read */ + Desbuf msgbuf; /* I/O buffer */ + Desbuf encbuf; /* encryption buffer */ + + /* + * do the transformation + * note we DISCARD the encrypted block; + * we only care about the last one + */ + while ((n = READ(BUFFER(msgbuf), 8)) == 8) { + for (n = 0; n < 8; n++) + CHAR(encbuf, n) = CHAR(msgbuf, n) ^ CHAR(ivec, n); + DES_XFORM(UBUFFER(encbuf)); + MEMCPY(BUFFER(ivec), BUFFER(encbuf), 8); + } + /* + * now compute the last one, right padding with '\0' if need be + */ + if (n > 0) { + MEMZERO(&CHAR(msgbuf, n), 8 - n); + for (n = 0; n < 8; n++) + CHAR(encbuf, n) = CHAR(msgbuf, n) ^ CHAR(ivec, n); + DES_XFORM(UBUFFER(encbuf)); + } + /* + * drop the bits + * we write chars until fewer than 7 bits, + * and then pad the last one with 0 bits + */ + for (n = 0; macbits > 7; n++, macbits -= 8) + (void)putchar(CHAR(encbuf, n)); + if (macbits > 0) { + CHAR(msgbuf, 0) = 0x00; + for (j = 0; j < macbits; j++) + CHAR(msgbuf, 0) |= (CHAR(encbuf, n)&bits[j]); + (void)putchar(CHAR(msgbuf, 0)); + } +} + +/* + * This encrypts using the Cipher FeedBack mode of DES + */ +cfbenc() +{ + register int n; /* number of bytes actually read */ + register int nbytes; /* number of bytes to read */ + register int bn; /* block number */ + char ibuf[8]; /* input buffer */ + Desbuf msgbuf; /* encryption buffer */ + + /* + * do things in bytes, not bits + */ + nbytes = fbbits / 8; + /* + * do the transformation + */ + for (bn = 1; (n = READ(ibuf, nbytes)) == nbytes; bn++) { + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (n = 0; n < 8 - nbytes; n++) + UCHAR(ivec, n) = UCHAR(ivec, n+nbytes); + for (n = 0; n < nbytes; n++) + UCHAR(ivec, 8-nbytes+n) = ibuf[n] ^ UCHAR(msgbuf, n); + WRITE(&CHAR(ivec, 8-nbytes), nbytes); + } + /* + * at EOF or last block -- in either case, the last byte contains + * the character representation of the number of bytes in it + */ + bn++; + MEMZERO(&ibuf[n], nbytes - n); + ibuf[nbytes - 1] = n; + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (n = 0; n < nbytes; n++) + ibuf[n] ^= UCHAR(msgbuf, n); + WRITE(ibuf, nbytes); +} + +/* + * This decrypts using the Cipher Block Chaining mode of DES + */ +cfbdec() +{ + register int n; /* number of bytes actually read */ + register int c; /* used to test for EOF */ + register int nbytes; /* number of bytes to read */ + register int bn; /* block number */ + char ibuf[8]; /* input buffer */ + char obuf[8]; /* output buffer */ + Desbuf msgbuf; /* encryption buffer */ + + /* + * do things in bytes, not bits + */ + nbytes = fbbits / 8; + /* + * do the transformation + */ + for (bn = 1; (n = READ(ibuf, nbytes)) == nbytes; bn++) { + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (c = 0; c < 8 - nbytes; c++) + CHAR(ivec, c) = CHAR(ivec, c+nbytes); + for (c = 0; c < nbytes; c++) { + CHAR(ivec, 8-nbytes+c) = ibuf[c]; + obuf[c] = ibuf[c] ^ UCHAR(msgbuf, c); + } + /* + * if the last one, handle it specially + */ + if ((c = getchar()) == EOF) { + n = obuf[nbytes-1]; + if (n < 0 || n > nbytes-1) + err(bn, "decryption failed (block corrupted)"); + } + else + (void)ungetc(c, stdin); + WRITE(obuf, n); + } + if (n > 0) + err(bn, "decryption failed (incomplete block)"); +} + +/* + * This encrypts using the alternative Cipher FeedBack mode of DES + */ +cfbaenc() +{ + register int n; /* number of bytes actually read */ + register int nbytes; /* number of bytes to read */ + register int bn; /* block number */ + char ibuf[8]; /* input buffer */ + char obuf[8]; /* output buffer */ + Desbuf msgbuf; /* encryption buffer */ + + /* + * do things in bytes, not bits + */ + nbytes = fbbits / 7; + /* + * do the transformation + */ + for (bn = 1; (n = READ(ibuf, nbytes)) == nbytes; bn++) { + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (n = 0; n < 8 - nbytes; n++) + UCHAR(ivec, n) = UCHAR(ivec, n+nbytes); + for (n = 0; n < nbytes; n++) + UCHAR(ivec, 8-nbytes+n) = (ibuf[n] ^ UCHAR(msgbuf, n)) + |0200; + for (n = 0; n < nbytes; n++) + obuf[n] = CHAR(ivec, 8-nbytes+n)&0177; + WRITE(obuf, nbytes); + } + /* + * at EOF or last block -- in either case, the last byte contains + * the character representation of the number of bytes in it + */ + bn++; + MEMZERO(&ibuf[n], nbytes - n); + ibuf[nbytes - 1] = ('0' + n)|0200; + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (n = 0; n < nbytes; n++) + ibuf[n] ^= UCHAR(msgbuf, n); + WRITE(ibuf, nbytes); +} + +/* + * This decrypts using the alternative Cipher Block Chaining mode of DES + */ +cfbadec() +{ + register int n; /* number of bytes actually read */ + register int c; /* used to test for EOF */ + register int nbytes; /* number of bytes to read */ + register int bn; /* block number */ + char ibuf[8]; /* input buffer */ + char obuf[8]; /* output buffer */ + Desbuf msgbuf; /* encryption buffer */ + + /* + * do things in bytes, not bits + */ + nbytes = fbbits / 7; + /* + * do the transformation + */ + for (bn = 1; (n = READ(ibuf, nbytes)) == nbytes; bn++) { + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (c = 0; c < 8 - nbytes; c++) + CHAR(ivec, c) = CHAR(ivec, c+nbytes); + for (c = 0; c < nbytes; c++) { + CHAR(ivec, 8-nbytes+c) = ibuf[c]|0200; + obuf[c] = (ibuf[c] ^ UCHAR(msgbuf, c))&0177; + } + /* + * if the last one, handle it specially + */ + if ((c = getchar()) == EOF) { + if ((n = (obuf[nbytes-1] - '0')) < 0 + || n > nbytes-1) + err(bn, "decryption failed (block corrupted)"); + } + else + (void)ungetc(c, stdin); + WRITE(obuf, n); + } + if (n > 0) + err(bn, "decryption failed (incomplete block)"); +} + + +/* + * This encrypts using the Output FeedBack mode of DES + */ +ofbenc() +{ + register int n; /* number of bytes actually read */ + register int c; /* used to test for EOF */ + register int nbytes; /* number of bytes to read */ + register int bn; /* block number */ + char ibuf[8]; /* input buffer */ + char obuf[8]; /* output buffer */ + Desbuf msgbuf; /* encryption buffer */ + + /* + * do things in bytes, not bits + */ + nbytes = fbbits / 8; + /* + * do the transformation + */ + for (bn = 1; (n = READ(ibuf, nbytes)) == nbytes; bn++) { + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (n = 0; n < 8 - nbytes; n++) + UCHAR(ivec, n) = UCHAR(ivec, n+nbytes); + for (n = 0; n < nbytes; n++) { + UCHAR(ivec, 8-nbytes+n) = UCHAR(msgbuf, n); + obuf[n] = ibuf[n] ^ UCHAR(msgbuf, n); + } + WRITE(obuf, nbytes); + } + /* + * at EOF or last block -- in either case, the last byte contains + * the character representation of the number of bytes in it + */ + bn++; + MEMZERO(&ibuf[n], nbytes - n); + ibuf[nbytes - 1] = n; + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (c = 0; c < nbytes; c++) + ibuf[c] ^= UCHAR(msgbuf, c); + WRITE(ibuf, nbytes); +} + +/* + * This decrypts using the Output Block Chaining mode of DES + */ +ofbdec() +{ + register int n; /* number of bytes actually read */ + register int c; /* used to test for EOF */ + register int nbytes; /* number of bytes to read */ + register int bn; /* block number */ + char ibuf[8]; /* input buffer */ + char obuf[8]; /* output buffer */ + Desbuf msgbuf; /* encryption buffer */ + + /* + * do things in bytes, not bits + */ + nbytes = fbbits / 8; + /* + * do the transformation + */ + for (bn = 1; (n = READ(ibuf, nbytes)) == nbytes; bn++) { + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (c = 0; c < 8 - nbytes; c++) + CHAR(ivec, c) = CHAR(ivec, c+nbytes); + for (c = 0; c < nbytes; c++) { + CHAR(ivec, 8-nbytes+c) = UCHAR(msgbuf, c); + obuf[c] = ibuf[c] ^ UCHAR(msgbuf, c); + } + /* + * if the last one, handle it specially + */ + if ((c = getchar()) == EOF) { + n = obuf[nbytes-1]; + if (n < 0 || n > nbytes-1) + err(bn, "decryption failed (block corrupted)"); + } + else + (void)ungetc(c, stdin); + /* + * dump it + */ + WRITE(obuf, n); + } + if (n > 0) + err(bn, "decryption failed (incomplete block)"); +} + +/* + * This authenticates using the Cipher FeedBack mode of DES + */ +cfbauth() +{ + register int n, j; /* number of bytes actually read */ + register int nbytes; /* number of bytes to read */ + char ibuf[8]; /* input buffer */ + Desbuf msgbuf; /* encryption buffer */ + + /* + * do things in bytes, not bits + */ + nbytes = fbbits / 8; + /* + * do the transformation + */ + while ((n = READ(ibuf, nbytes)) == nbytes) { + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (n = 0; n < 8 - nbytes; n++) + UCHAR(ivec, n) = UCHAR(ivec, n+nbytes); + for (n = 0; n < nbytes; n++) + UCHAR(ivec, 8-nbytes+n) = ibuf[n] ^ UCHAR(msgbuf, n); + } + /* + * at EOF or last block -- in either case, the last byte contains + * the character representation of the number of bytes in it + */ + MEMZERO(&ibuf[n], nbytes - n); + ibuf[nbytes - 1] = '0' + n; + MEMCPY(BUFFER(msgbuf), BUFFER(ivec), 8); + DES_XFORM(UBUFFER(msgbuf)); + for (n = 0; n < nbytes; n++) + ibuf[n] ^= UCHAR(msgbuf, n); + /* + * drop the bits + * we write chars until fewer than 7 bits, + * and then pad the last one with 0 bits + */ + for (n = 0; macbits > 7; n++, macbits -= 8) + (void)putchar(CHAR(msgbuf, n)); + if (macbits > 0) { + CHAR(msgbuf, 0) = 0x00; + for (j = 0; j < macbits; j++) + CHAR(msgbuf, 0) |= (CHAR(msgbuf, n)&bits[j]); + (void)putchar(CHAR(msgbuf, 0)); + } +} + +#ifndef FASTWAY +/* + * change from 8 bits/Uchar to 1 bit/Uchar + */ +expand(from, to) + Desbuf from; /* 8bit/unsigned char string */ + char *to; /* 1bit/char string */ +{ + register int i, j; /* counters in for loop */ + + for (i = 0; i < 8; i++) + for (j = 0; j < 8; j++) + *to++ = (CHAR(from, i)>>(7-j))&01; +} + +/* + * change from 1 bit/char to 8 bits/Uchar + */ +compress(from, to) + char *from; /* 1bit/char string */ + Desbuf to; /* 8bit/unsigned char string */ +{ + register int i, j; /* counters in for loop */ + + for (i = 0; i < 8; i++) { + CHAR(to, i) = 0; + for (j = 0; j < 8; j++) + CHAR(to, i) = ((*from++)<<(7-j))|CHAR(to, i); + } +} +#endif + +/* + * message about usage + */ +usage() +{ + (void)fprintf(stderr, "%s\n", +"usage: bdes [-abdp] [-F bit] [-f bit] [-k key] [-m bit] [-o bit] [-v vector]"); + exit(1); +} diff --git a/secure/usr.bin/bdes/bdes.ps b/secure/usr.bin/bdes/bdes.ps new file mode 100644 index 0000000..471c267 --- /dev/null +++ b/secure/usr.bin/bdes/bdes.ps @@ -0,0 +1,2945 @@ +%! +%%BoundingBox: (atend) +%%Pages: (atend) +%%DocumentFonts: (atend) +%%EndComments +% +% FrameMaker PostScript Prolog 2.0, for use with FrameMaker 2.0 +% Copyright (c) 1986,87,89 by Frame Technology, Inc. All rights reserved. +% +% Known Problems: +% Due to bugs in Transcript, the 'PS-Adobe-' is omitted from line 1 +/FMversion (2.0) def +% Set up Color vs. Black-and-White + /FMPrintInColor systemdict /colorimage known def +% Uncomment this line to force b&w on color printer +% /FMPrintInColor false def +/FrameDict 190 dict def +systemdict /errordict known not {/errordict 10 dict def + errordict /rangecheck {stop} put} if +% The readline in 23.0 doesn't recognize cr's as nl's on AppleTalk +FrameDict /tmprangecheck errordict /rangecheck get put +errordict /rangecheck {FrameDict /bug true put} put +FrameDict /bug false put +mark +% Some PS machines read past the CR, so keep the following 3 lines together! +currentfile 5 string readline +00 +0000000000 +cleartomark +errordict /rangecheck FrameDict /tmprangecheck get put +FrameDict /bug get { + /readline { + /gstring exch def + /gfile exch def + /gindex 0 def + { + gfile read pop + dup 10 eq {exit} if + dup 13 eq {exit} if + gstring exch gindex exch put + /gindex gindex 1 add def + } loop + pop + gstring 0 gindex getinterval true + } def + } if +/FMVERSION { + FMversion ne { + /Times-Roman findfont 18 scalefont setfont + 100 100 moveto + (FrameMaker version does not match postscript_prolog!) + dup = + show showpage + } if + } def +/FMLOCAL { + FrameDict begin + 0 def + end + } def + /gstring FMLOCAL + /gfile FMLOCAL + /gindex FMLOCAL + /orgxfer FMLOCAL + /orgproc FMLOCAL + /organgle FMLOCAL + /orgfreq FMLOCAL + /yscale FMLOCAL + /xscale FMLOCAL + /manualfeed FMLOCAL + /paperheight FMLOCAL + /paperwidth FMLOCAL +/FMDOCUMENT { + array /FMfonts exch def + /#copies exch def + FrameDict begin + 0 ne dup {setmanualfeed} if + /manualfeed exch def + /paperheight exch def + /paperwidth exch def + setpapername + manualfeed {true} {papersize} ifelse + {manualpapersize} {false} ifelse + {desperatepapersize} if + /yscale exch def + /xscale exch def + currenttransfer cvlit /orgxfer exch def + currentscreen cvlit /orgproc exch def + /organgle exch def /orgfreq exch def + end + } def + /pagesave FMLOCAL + /orgmatrix FMLOCAL + /landscape FMLOCAL +/FMBEGINPAGE { + FrameDict begin + /pagesave save def + 3.86 setmiterlimit + /landscape exch 0 ne def + landscape { + 90 rotate 0 exch neg translate pop + } + {pop pop} + ifelse + xscale yscale scale + /orgmatrix matrix def + gsave + } def +/FMENDPAGE { + grestore + pagesave restore + end + showpage + } def +/FMDEFINEFONT { + FrameDict begin + findfont + ReEncode + 2 index exch + definefont exch + scalefont + FMfonts 3 1 roll + put + end + } bind def +/FMNORMALIZEGRAPHICS { + newpath + 0.0 0.0 moveto + 1 setlinewidth + 0 setlinecap + 0 0 0 sethsbcolor + 0 setgray + } bind def + /fx FMLOCAL + /fy FMLOCAL + /fh FMLOCAL + /fw FMLOCAL + /llx FMLOCAL + /lly FMLOCAL + /urx FMLOCAL + /ury FMLOCAL +/FMBEGINEPSF { + end + /FMEPSF save def + /showpage {} def + FMNORMALIZEGRAPHICS + [/fy /fx /fh /fw /ury /urx /lly /llx] {exch def} forall + fx fy translate + rotate + fw urx llx sub div fh ury lly sub div scale + llx neg lly neg translate + } bind def +/FMENDEPSF { + FMEPSF restore + FrameDict begin + } bind def +FrameDict begin +/setmanualfeed { +%%BeginFeature *ManualFeed True + statusdict /manualfeed true put +%%EndFeature + } def +/max {2 copy lt {exch} if pop} bind def +/min {2 copy gt {exch} if pop} bind def +/inch {72 mul} def +/pagedimen { + paperheight sub abs 16 lt exch + paperwidth sub abs 16 lt and + {/papername exch def} {pop} ifelse + } def + /papersizedict FMLOCAL +/setpapername { + /papersizedict 14 dict def + papersizedict begin + /papername /unknown def + /Letter 8.5 inch 11.0 inch pagedimen + /LetterSmall 7.68 inch 10.16 inch pagedimen + /Tabloid 11.0 inch 17.0 inch pagedimen + /Ledger 17.0 inch 11.0 inch pagedimen + /Legal 8.5 inch 14.0 inch pagedimen + /Statement 5.5 inch 8.5 inch pagedimen + /Executive 7.5 inch 10.0 inch pagedimen + /A3 11.69 inch 16.5 inch pagedimen + /A4 8.26 inch 11.69 inch pagedimen + /A4Small 7.47 inch 10.85 inch pagedimen + /B4 10.125 inch 14.33 inch pagedimen + /B5 7.16 inch 10.125 inch pagedimen + end + } def +/papersize { + papersizedict begin + /Letter {lettertray} def + /LetterSmall {lettertray lettersmall} def + /Tabloid {11x17tray} def + /Ledger {ledgertray} def + /Legal {legaltray} def + /Statement {statementtray} def + /Executive {executivetray} def + /A3 {a3tray} def + /A4 {a4tray} def + /A4Small {a4tray a4small} def + /B4 {b4tray} def + /B5 {b5tray} def + /unknown {unknown} def + papersizedict dup papername known {papername} {/unknown} ifelse get + end + /FMdicttop countdictstack 1 add def + statusdict begin stopped end + countdictstack -1 FMdicttop {pop end} for + } def +/manualpapersize { + papersizedict begin + /Letter {letter} def + /LetterSmall {lettersmall} def + /Tabloid {11x17} def + /Ledger {ledger} def + /Legal {legal} def + /Statement {statement} def + /Executive {executive} def + /A3 {a3} def + /A4 {a4} def + /A4Small {a4small} def + /B4 {b4} def + /B5 {b5} def + /unknown {unknown} def + papersizedict dup papername known {papername} {/unknown} ifelse get + end + stopped + } def +/desperatepapersize { + statusdict /setpageparams known + { + paperwidth paperheight 0 1 + statusdict begin + {setpageparams} stopped pop + end + } if + } def +/savematrix { + orgmatrix currentmatrix pop + } bind def +/restorematrix { + orgmatrix setmatrix + } bind def +/dmatrix matrix def +/dpi 72 0 dmatrix defaultmatrix dtransform + dup mul exch dup mul add sqrt def +/freq dpi 18.75 div 8 div round dup 0 eq {pop 1} if 8 mul dpi exch div def +/sangle 1 0 dmatrix defaultmatrix dtransform exch atan def +/DiacriticEncoding [ +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /space /exclam /quotedbl +/numbersign /dollar /percent /ampersand /quotesingle /parenleft +/parenright /asterisk /plus /comma /hyphen /period /slash /zero /one +/two /three /four /five /six /seven /eight /nine /colon /semicolon +/less /equal /greater /question /at /A /B /C /D /E /F /G /H /I /J /K +/L /M /N /O /P /Q /R /S /T /U /V /W /X /Y /Z /bracketleft /backslash +/bracketright /asciicircum /underscore /grave /a /b /c /d /e /f /g /h +/i /j /k /l /m /n /o /p /q /r /s /t /u /v /w /x /y /z /braceleft /bar +/braceright /asciitilde /.notdef /Adieresis /Aring /Ccedilla /Eacute +/Ntilde /Odieresis /Udieresis /aacute /agrave /acircumflex /adieresis +/atilde /aring /ccedilla /eacute /egrave /ecircumflex /edieresis +/iacute /igrave /icircumflex /idieresis /ntilde /oacute /ograve +/ocircumflex /odieresis /otilde /uacute /ugrave /ucircumflex +/udieresis /dagger /.notdef /cent /sterling /section /bullet +/paragraph /germandbls /registered /copyright /trademark /acute +/dieresis /.notdef /AE /Oslash /.notdef /.notdef /.notdef /.notdef +/yen /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/ordfeminine /ordmasculine /.notdef /ae /oslash /questiondown +/exclamdown /logicalnot /.notdef /florin /.notdef /.notdef +/guillemotleft /guillemotright /ellipsis /.notdef /Agrave /Atilde +/Otilde /OE /oe /endash /emdash /quotedblleft /quotedblright +/quoteleft /quoteright /.notdef /.notdef /ydieresis /Ydieresis +/fraction /currency /guilsinglleft /guilsinglright /fi /fl /daggerdbl +/periodcentered /quotesinglbase /quotedblbase /perthousand +/Acircumflex /Ecircumflex /Aacute /Edieresis /Egrave /Iacute +/Icircumflex /Idieresis /Igrave /Oacute /Ocircumflex /.notdef /Ograve +/Uacute /Ucircumflex /Ugrave /dotlessi /circumflex /tilde /macron +/breve /dotaccent /ring /cedilla /hungarumlaut /ogonek /caron +] def +/ReEncode { + dup + length + dict begin + { + 1 index /FID ne + {def} + {pop pop} ifelse + } forall + Encoding StandardEncoding eq + { + /Encoding DiacriticEncoding def + }if + currentdict + end + } bind def +/graymode true def + /bwidth FMLOCAL + /bpside FMLOCAL + /bstring FMLOCAL + /onbits FMLOCAL + /offbits FMLOCAL + /xindex FMLOCAL + /yindex FMLOCAL + /x FMLOCAL + /y FMLOCAL +/setpattern { + /bwidth exch def + /bpside exch def + /bstring exch def + /onbits 0 def /offbits 0 def + freq sangle landscape {90 add} if + {/y exch def + /x exch def + /xindex x 1 add 2 div bpside mul cvi def + /yindex y 1 add 2 div bpside mul cvi def + bstring yindex bwidth mul xindex 8 idiv add get + 1 7 xindex 8 mod sub bitshift and 0 ne + {/onbits onbits 1 add def 1} + {/offbits offbits 1 add def 0} + ifelse + } + setscreen + {} settransfer + offbits offbits onbits add div FMsetgray + /graymode false def + } bind def +/grayness { + FMsetgray + graymode not { + /graymode true def + orgxfer cvx settransfer + orgfreq organgle orgproc cvx setscreen + } if + } bind def + /HUE FMLOCAL + /SAT FMLOCAL + /BRIGHT FMLOCAL + /Colors FMLOCAL +FMPrintInColor + + { + /HUE 0 def + /SAT 0 def + /BRIGHT 0 def + % array of arrays Hue and Sat values for the separations [HUE BRIGHT] + /Colors + [[0 0 ] % black + [0 0 ] % white + [0.00 1.0] % red + [0.37 1.0] % green + [0.60 1.0] % blue + [0.50 1.0] % cyan + [0.83 1.0] % magenta + [0.16 1.0] % comment / yellow + ] def + + /BEGINBITMAPCOLOR { + BITMAPCOLOR} def + /BEGINBITMAPCOLORc { + BITMAPCOLORc} def + /K { + Colors exch get dup + 0 get /HUE exch store + 1 get /BRIGHT exch store + HUE 0 eq BRIGHT 0 eq and + {1.0 SAT sub setgray} + {HUE SAT BRIGHT sethsbcolor} + ifelse + } def + /FMsetgray { + /SAT exch 1.0 exch sub store + HUE 0 eq BRIGHT 0 eq and + {1.0 SAT sub setgray} + {HUE SAT BRIGHT sethsbcolor} + ifelse + } bind def + } + + { + /BEGINBITMAPCOLOR { + BITMAPGRAY} def + /BEGINBITMAPCOLORc { + BITMAPGRAYc} def + /FMsetgray {setgray} bind def + /K { + pop + } def + } +ifelse +/normalize { + transform round exch round exch itransform + } bind def +/dnormalize { + dtransform round exch round exch idtransform + } bind def +/lnormalize { + 0 dtransform exch cvi 2 idiv 2 mul 1 add exch idtransform pop + } bind def +/H { + lnormalize setlinewidth + } bind def +/Z { + setlinecap + } bind def +/X { + fillprocs exch get exec + } bind def +/V { + gsave eofill grestore + } bind def +/N { + stroke + } bind def +/M {newpath moveto} bind def +/E {lineto} bind def +/D {curveto} bind def +/O {closepath} bind def + /n FMLOCAL +/L { + /n exch def + newpath + normalize + moveto + 2 1 n {pop normalize lineto} for + } bind def +/Y { + L + closepath + } bind def + /x1 FMLOCAL + /x2 FMLOCAL + /y1 FMLOCAL + /y2 FMLOCAL + /rad FMLOCAL +/R { + /y2 exch def + /x2 exch def + /y1 exch def + /x1 exch def + x1 y1 + x2 y1 + x2 y2 + x1 y2 + 4 Y + } bind def +/RR { + /rad exch def + normalize + /y2 exch def + /x2 exch def + normalize + /y1 exch def + /x1 exch def + newpath + x1 y1 rad add moveto + x1 y2 x2 y2 rad arcto + x2 y2 x2 y1 rad arcto + x2 y1 x1 y1 rad arcto + x1 y1 x1 y2 rad arcto + closepath + 16 {pop} repeat + } bind def +/C { + grestore + gsave + R + clip + } bind def +/U { + grestore + gsave + } bind def +/F { + FMfonts exch get + setfont + } bind def +/T { + moveto show + } bind def +/RF { + rotate + 0 ne {-1 1 scale} if + } bind def +/TF { + gsave + moveto + RF + show + grestore + } bind def +/P { + moveto + 0 32 3 2 roll widthshow + } bind def +/PF { + gsave + moveto + RF + 0 32 3 2 roll widthshow + grestore + } bind def +/S { + moveto + 0 exch ashow + } bind def +/SF { + gsave + moveto + RF + 0 exch ashow + grestore + } bind def +/B { + moveto + 0 32 4 2 roll 0 exch awidthshow + } bind def +/BF { + gsave + moveto + RF + 0 32 4 2 roll 0 exch awidthshow + grestore + } bind def + /x FMLOCAL + /y FMLOCAL + /dx FMLOCAL + /dy FMLOCAL + /dl FMLOCAL + /t FMLOCAL + /t2 FMLOCAL + /Cos FMLOCAL + /Sin FMLOCAL + /r FMLOCAL +/W { + dnormalize + /dy exch def + /dx exch def + normalize + /y exch def + /x exch def + /dl dx dx mul dy dy mul add sqrt def + dl 0.0 gt { + /t currentlinewidth def + savematrix + /Cos dx dl div def + /Sin dy dl div def + /r [Cos Sin Sin neg Cos 0.0 0.0] def + /t2 t 2.5 mul 3.5 max def + newpath + x y translate + r concat + 0.0 0.0 moveto + dl t 2.7 mul sub 0.0 rlineto + stroke + restorematrix + x dx add y dy add translate + r concat + t 0.67 mul setlinewidth + t 1.61 mul neg 0.0 translate + 0.0 0.0 moveto + t2 1.7 mul neg t2 2.0 div moveto + 0.0 0.0 lineto + t2 1.7 mul neg t2 2.0 div neg lineto + stroke + t setlinewidth + restorematrix + } if + } bind def +/G { + gsave + newpath + normalize translate 0.0 0.0 moveto + dnormalize scale + 0.0 0.0 1.0 5 3 roll arc + closepath fill + grestore + } bind def +/A { + gsave + savematrix + newpath + 2 index 2 div add exch 3 index 2 div sub exch + normalize 2 index 2 div sub exch 3 index 2 div add exch + translate + scale + 0.0 0.0 1.0 5 3 roll arc + restorematrix + stroke + grestore + } bind def + /x FMLOCAL + /y FMLOCAL + /w FMLOCAL + /h FMLOCAL + /xx FMLOCAL + /yy FMLOCAL + /ww FMLOCAL + /hh FMLOCAL + /FMsaveobject FMLOCAL + /FMoptop FMLOCAL + /FMdicttop FMLOCAL +/BEGINPRINTCODE { + /FMdicttop countdictstack 1 add def + /FMoptop count 4 sub def + /FMsaveobject save def + userdict begin + /showpage {} def + FMNORMALIZEGRAPHICS + 3 index neg 3 index neg translate + } bind def +/ENDPRINTCODE { + count -1 FMoptop {pop pop} for + countdictstack -1 FMdicttop {pop end} for + FMsaveobject restore + } bind def +/gn { + 0 + { 46 mul + cf read pop + 32 sub + dup 46 lt {exit} if + 46 sub add + } loop + add + } bind def + /str FMLOCAL +/cfs { + /str sl string def + 0 1 sl 1 sub {str exch val put} for + str def + } bind def +/ic [ + 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0223 + 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0223 + 0 + {0 hx} {1 hx} {2 hx} {3 hx} {4 hx} {5 hx} {6 hx} {7 hx} {8 hx} {9 hx} + {10 hx} {11 hx} {12 hx} {13 hx} {14 hx} {15 hx} {16 hx} {17 hx} {18 hx} + {19 hx} {gn hx} {0} {1} {2} {3} {4} {5} {6} {7} {8} {9} {10} {11} {12} + {13} {14} {15} {16} {17} {18} {19} {gn} {0 wh} {1 wh} {2 wh} {3 wh} + {4 wh} {5 wh} {6 wh} {7 wh} {8 wh} {9 wh} {10 wh} {11 wh} {12 wh} + {13 wh} {14 wh} {gn wh} {0 bl} {1 bl} {2 bl} {3 bl} {4 bl} {5 bl} {6 bl} + {7 bl} {8 bl} {9 bl} {10 bl} {11 bl} {12 bl} {13 bl} {14 bl} {gn bl} + {0 fl} {1 fl} {2 fl} {3 fl} {4 fl} {5 fl} {6 fl} {7 fl} {8 fl} {9 fl} + {10 fl} {11 fl} {12 fl} {13 fl} {14 fl} {gn fl} + ] def + /sl FMLOCAL + /val FMLOCAL + /ws FMLOCAL + /im FMLOCAL + /bs FMLOCAL + /cs FMLOCAL + /len FMLOCAL + /pos FMLOCAL +/ms { + /sl exch def + /val 255 def + /ws cfs + /im cfs + /val 0 def + /bs cfs + /cs cfs + } bind def +400 ms +/ip { + is + 0 + cf cs readline pop + { ic exch get exec + add + } forall + pop + + } bind def +/wh { + /len exch def + /pos exch def + ws 0 len getinterval im pos len getinterval copy pop + pos len + } bind def +/bl { + /len exch def + /pos exch def + bs 0 len getinterval im pos len getinterval copy pop + pos len + } bind def +/s1 1 string def +/fl { + /len exch def + /pos exch def + /val cf s1 readhexstring pop 0 get def + pos 1 pos len add 1 sub {im exch val put} for + pos len + } bind def +/hx { + 3 copy getinterval + cf exch readhexstring pop pop + } bind def + /h FMLOCAL + /w FMLOCAL + /d FMLOCAL + /lb FMLOCAL + /bitmapsave FMLOCAL + /is FMLOCAL + /cf FMLOCAL +/wbytes { + dup + 8 eq {pop} {1 eq {7 add 8 idiv} {3 add 4 idiv} ifelse} ifelse + } bind def +/BEGINBITMAPBWc { + 1 {} COMMONBITMAPc + } bind def +/BEGINBITMAPGRAYc { + 8 {} COMMONBITMAPc + } bind def +/BEGINBITMAP2BITc { + 2 {} COMMONBITMAPc + } bind def +/COMMONBITMAPc { + /r exch def + /d exch def + gsave + translate rotate scale /h exch def /w exch def + /lb w d wbytes def + sl lb lt {lb ms} if + /bitmapsave save def + r + /is im 0 lb getinterval def + ws 0 lb getinterval is copy pop + /cf currentfile def + w h d [w 0 0 h neg 0 h] + {ip} image + bitmapsave restore + grestore + } bind def +/BEGINBITMAPBW { + 1 {} COMMONBITMAP + } bind def +/BEGINBITMAPGRAY { + 8 {} COMMONBITMAP + } bind def +/BEGINBITMAP2BIT { + 2 {} COMMONBITMAP + } bind def +/COMMONBITMAP { + /r exch def + /d exch def + gsave + translate rotate scale /h exch def /w exch def + /bitmapsave save def + r + /is w d wbytes string def + /cf currentfile def + w h d [w 0 0 h neg 0 h] + {cf is readhexstring pop} image + bitmapsave restore + grestore + } bind def + /proc1 FMLOCAL + /proc2 FMLOCAL + /newproc FMLOCAL +/Fmcc { + /proc2 exch cvlit def + /proc1 exch cvlit def + /newproc proc1 length proc2 length add array def + newproc 0 proc1 putinterval + newproc proc1 length proc2 putinterval + newproc cvx +} bind def +/ngrayt 256 array def +/nredt 256 array def +/nbluet 256 array def +/ngreent 256 array def + /gryt FMLOCAL + /blut FMLOCAL + /grnt FMLOCAL + /redt FMLOCAL + /indx FMLOCAL + /cynu FMLOCAL + /magu FMLOCAL + /yelu FMLOCAL + /k FMLOCAL + /u FMLOCAL +/colorsetup { + currentcolortransfer + /gryt exch def + /blut exch def + /grnt exch def + /redt exch def + 0 1 255 { + /indx exch def + /cynu 1 red indx get 255 div sub def + /magu 1 green indx get 255 div sub def + /yelu 1 blue indx get 255 div sub def + /k cynu magu min yelu min def + /u k currentundercolorremoval exec def + nredt indx 1 0 cynu u sub max sub redt exec put + ngreent indx 1 0 magu u sub max sub grnt exec put + nbluet indx 1 0 yelu u sub max sub blut exec put + ngrayt indx 1 k currentblackgeneration exec sub gryt exec put + } for + {255 mul cvi nredt exch get} + {255 mul cvi ngreent exch get} + {255 mul cvi nbluet exch get} + {255 mul cvi ngrayt exch get} + setcolortransfer + {pop 0} setundercolorremoval + {} setblackgeneration + } bind def + /tran FMLOCAL +/fakecolorsetup { + /tran 256 string def + 0 1 255 {/indx exch def + tran indx + red indx get 77 mul + green indx get 151 mul + blue indx get 28 mul + add add 256 idiv put} for + currenttransfer + {255 mul cvi tran exch get 255.0 div} + exch Fmcc settransfer +} bind def +/BITMAPCOLOR { + /d 8 def + gsave + translate rotate scale /h exch def /w exch def + /bitmapsave save def + colorsetup + /is w d wbytes string def + /cf currentfile def + w h d [w 0 0 h neg 0 h] + {cf is readhexstring pop} {is} {is} true 3 colorimage + bitmapsave restore + grestore + } bind def +/BITMAPCOLORc { + /d 8 def + gsave + translate rotate scale /h exch def /w exch def + /lb w d wbytes def + sl lb lt {lb ms} if + /bitmapsave save def + colorsetup + /is im 0 lb getinterval def + ws 0 lb getinterval is copy pop + /cf currentfile def + w h d [w 0 0 h neg 0 h] + {ip} {is} {is} true 3 colorimage + bitmapsave restore + grestore + } bind def +/BITMAPGRAY { + 8 {fakecolorsetup} COMMONBITMAP + } bind def +/BITMAPGRAYc { + 8 {fakecolorsetup} COMMONBITMAPc + } bind def +/ENDBITMAP { + } bind def +end +%%EndProlog +%%BeginSetup +(2.0) FMVERSION +1 1 612 792 0 1 16 FMDOCUMENT +/fillprocs 32 array def +fillprocs 0 { 0.000000 grayness } put +fillprocs 1 { 0.100000 grayness } put +fillprocs 2 { 0.300000 grayness } put +fillprocs 3 { 0.500000 grayness } put +fillprocs 4 { 0.700000 grayness } put +fillprocs 5 { 0.900000 grayness } put +fillprocs 6 { 0.970000 grayness } put +fillprocs 7 { 1.000000 grayness } put +fillprocs 8 {<0f87c3e1f0783c1e> 8 1 setpattern } put +fillprocs 9 {<0f1e3c78f0e1c387> 8 1 setpattern } put +fillprocs 10 {<cccccccccccccccc> 8 1 setpattern } put +fillprocs 11 {<ffff0000ffff0000> 8 1 setpattern } put +fillprocs 12 {<8142241818244281> 8 1 setpattern } put +fillprocs 13 {<8040201008040201> 8 1 setpattern } put +fillprocs 14 {<03060c183060c081> 8 1 setpattern } put +fillprocs 15 {} put +fillprocs 16 { 1.000000 grayness } put +fillprocs 17 { 0.900000 grayness } put +fillprocs 18 { 0.700000 grayness } put +fillprocs 19 { 0.500000 grayness } put +fillprocs 20 { 0.300000 grayness } put +fillprocs 21 { 0.100000 grayness } put +fillprocs 22 { 0.030000 grayness } put +fillprocs 23 { 0.000000 grayness } put +fillprocs 24 {<f0783c1e0f87c3e1> 8 1 setpattern } put +fillprocs 25 {<f0e1c3870f1e3c78> 8 1 setpattern } put +fillprocs 26 {<3333333333333333> 8 1 setpattern } put +fillprocs 27 {<0000ffff0000ffff> 8 1 setpattern } put +fillprocs 28 {<7ebddbe7e7dbbd7e> 8 1 setpattern } put +fillprocs 29 {<7fbfdfeff7fbfdfe> 8 1 setpattern } put +fillprocs 30 {<fcf9f3e7cf9f3f7e> 8 1 setpattern } put +fillprocs 31 {} put +%%EndSetup +0 12 /Helvetica-Bold FMDEFINEFONT +1 12 /Helvetica-BoldOblique FMDEFINEFONT +%%Page: "-1" 1 +%%BeginPaperSize: Letter +%%EndPaperSize +612 792 0 FMBEGINPAGE +144 144 468 396 R +7 X +0 K +V +0 F +0 X +1.2 (IMPLEMENT) 178.34 388 S +1.2 (A) 258.88 388 S +1.2 (TION NOTES ON ) 267.85 388 S +1 F +1.2 (bdes) 382.61 388 S +0 F +1.2 (\0501\051) 415.4 388 S +1.2 (Matt Bishop) 265.09 338 S +1.2 (T) 197.74 288 S +1.2 (echnical Report PCS-TR91-158) 205.38 288 S +FMENDPAGE +%%EndPage: "-1" 2 +%%Page: "0" 2 +612 792 0 FMBEGINPAGE +72 72 540 720 R +7 X +0 K +V +FMENDPAGE +%%EndPage: "0" 3 +0 12 /Times-Roman FMDEFINEFONT +1 18 /Times-Bold FMDEFINEFONT +2 18 /Times-BoldItalic FMDEFINEFONT +3 12 /Times-Italic FMDEFINEFONT +4 12 /Times-Bold FMDEFINEFONT +5 10 /Times-Roman FMDEFINEFONT +6 12 /Courier FMDEFINEFONT +7 12 /Courier-Oblique FMDEFINEFONT +8 12 /ZapfDingbats FMDEFINEFONT +9 12 /Symbol FMDEFINEFONT +10 12 /Courier-Bold FMDEFINEFONT +%%Page: "1" 3 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 1 of 11) 479.71 34.7 T +72 72 540 720 R +7 X +V +1 F +0 X +(Implementation Notes on ) 179.84 708 T +2 F +(bdes) 378.21 708 T +1 F +(\0501\051) 411.19 708 T +0 F +( ) 432.17 708 T +3 F +(Matt Bishop) 276.51 676 T +0 F +(Department of Mathematics and Computer Science) 182.92 656 T +(Dartmouth College) 259.86 642 T +(Hanover) 257.45 628 T +(, NH 03755) 298.26 628 T +3 F +(ABSTRACT) 277.68 602 T +0 F +0.27 (This note describes the implementation of ) 108 582 P +3 F +0.27 (bdes) 314.13 582 P +0 F +0.27 (, the \336le encryption program being) 336.12 582 P +0.36 (distributed in the 4.4 release of the Berkeley Software Distribution. It implements) 108 568 P +(all modes of the Data Encryption Standard program.) 108 554 T +4 F +(1. Intr) 72 528 T +(oduction) 104.43 528 T +0 F +-0.09 (The Data Encryption Standard is a standard endorsed by the federal government. It is con-) 108 504 P +-0.56 (siderably stronger than the algorithm used by the ) 72 484 P +5 F +-0.47 (UNIX) 305.36 484 P +0 F +-0.56 (\252 ) 330.34 484 P +3 F +-0.56 (crypt) 344.53 484 P +0 F +-0.56 (\0501\051 program, and therefore is a more) 369.18 484 P +0.11 (suitable candidate for protecting information, especially information contained in ) 72 464 P +5 F +0.09 (ASCII) 466.05 464 P +0 F +0.11 ( \336les. The) 492.14 464 P +-0.65 (program ) 72 444 P +3 F +-0.65 (bdes) 114.99 444 P +0 F +-0.65 (\0501\051 implements the DES and all of its modes, including the two authentication modes.) 136.97 444 P +-0.59 (Because others may wish to write software compatible with this program, this note presents) 108 420 P +-0.04 (the layout of the encrypted \336les produced by ) 72 400 P +3 F +-0.04 (bdes) 288.86 400 P +0 F +-0.04 ( as well as internal details relevant to the imple-) 310.85 400 P +-0.15 (mentation. Whereever possible and appropriate, the description of the ) 72 380 P +3 F +-0.15 (des) 408.04 380 P +0 F +-0.15 (\0501\051 program given in [4]) 424.03 380 P +-0.2 (has been followed; thus, ) 72 360 P +3 F +-0.2 (bdes) 190.77 360 P +0 F +-0.2 ( is completely compatible with that program. However) 212.75 360 P +-0.2 (, ) 473.33 360 P +3 F +-0.2 (bdes) 479.12 360 P +0 F +-0.2 ( also of-) 501.11 360 P +(fers several extensions to ) 72 340 T +3 F +(des) 195.9 340 T +0 F +( that are not compatible, and these will be explicitly pointed out.) 211.89 340 T +-0.14 (In this note, strings typed as shown will be in ) 108 316 P +6 F +-0.34 (Courier Roman font) 326.78 316 P +0 F +-0.14 (, and strings to be) 455.62 316 P +-0.42 (chosen by the user will be in ) 72 296 P +7 F +-1 (Courier Oblique font) 209.32 296 P +0 F +-0.42 (. The space character \050) 351.24 296 P +5 F +-0.35 (ASCII) 457.79 296 P +0 F +-0.42 ( <) 483.88 296 P +5 F +-0.35 (SP) 493.23 296 P +0 F +-0.42 (>, octal) 504.34 296 P +-0.43 (40, decimal 32, hex 20\051 will be represented as \322) 72 276 P +8 F +-0.47 (z) 296.98 276 P +0 F +-0.43 (\323 and the newline character \050) 301.96 276 P +5 F +-0.35 (ASCII) 438.03 276 P +0 F +-0.43 ( <) 464.13 276 P +5 F +-0.35 (NL) 473.46 276 P +0 F +-0.43 (>, octal 12,) 486.79 276 P +-0.05 (decimal 10, hex a\051 as \322) 72 256 P +9 F +-0.05 (\277) 181.65 256 P +0 F +-0.05 (\323. Because it is often more convenient to represent arbitrary characters as) 189.54 256 P +1.13 (a sequence of hexadecimal digits, that representation will often be used; these digits will be in) 72 236 P +10 F +(Courier Bold font) 72 216 T +0 F +( with spaces often inserted for readability) 194.33 216 T +(.) 392.07 216 T +4 F +(2. Overview and Use) 72 184 T +3 F +-0.39 (Bdes) 108 160 P +0 F +-0.39 ( implements the Data Encryption Standard algorithm in software, and enables the user) 131.32 160 P +-0.61 (to encrypt data using any of the four modes of operation of the DES \050Electronic Code Book, Cipher) 72 140 P +72 72 540 720 C +72 72 540 117 C +72 72 549 108 R +7 X +0 K +V +5 F +0 X +(This work is based on work funded by grant NAG2-680 from the National +Aeronautics and Space Administration to ) 72 101.33 T +(Dartmouth College.) 72 89.33 T +(UNIX is a Registered T) 72 77.33 T +(rademark of A) 166.58 77.33 T +(T&T Bell Laboratories.) 223.75 77.33 T +72 72 540 720 C +0 0 612 792 C +72 126 225 126 2 L +7 X +0 K +V +0.5 H +2 Z +0 X +N +FMENDPAGE +%%EndPage: "1" 4 +%%Page: "2" 4 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 2 of 11) 479.71 34.7 T +72 72 540 720 R +7 X +V +0 X +0.31 (Block Chaining, ) 72 712 P +3 F +0.31 (k) 154.25 712 P +0 F +0.31 (-bit Cipher Feed Back, and ) 159.58 712 P +3 F +0.31 (k) 293.71 712 P +0 F +0.31 (-bit Output Feed Back\051 as well as the Alternate ) 299.04 712 P +3 F +0.31 (k) 530.68 712 P +0 F +0.31 (-) 536.01 712 P +-0.04 (bit Cipher Feed Back mode. Further) 72 692 P +-0.04 (, ) 244.52 692 P +3 F +-0.04 (bdes) 250.48 692 P +0 F +-0.04 ( supports message authentication code generation based) 272.46 692 P +(on both the Cipher Block Chaining mode and the ) 72 672 T +3 F +(k) 310.86 672 T +0 F +(-bit Cipher Feed Back mode.) 316.19 672 T +0.07 (By default, ) 108 648 P +3 F +0.07 (bdes) 164.43 648 P +0 F +0.07 ( encrypts an input \336le using Cipher Block Chaining mode, and is invoked) 186.41 648 P +-0.4 (as a \336lter) 72 628 P +-0.4 (. The key may be speci\336ed either on the command line or may be typed to the prompt. So,) 114.51 628 P +(if the input \336le ) 72 608 T +7 F +(inputf) 145.96 608 T +(ile) 189.14 608 T +0 F +( contains the message) 210.73 608 T +6 F +(a) 253.9 584 T +8 F +(z) 261.1 584 T +6 F +(test) 266.07 584 T +8 F +(z) 294.86 584 T +6 F +(message) 299.83 584 T +9 F +(\277) 350.21 584 T +0 F +(then the following command encrypts it using the key ) 72 560 T +6 F +(abcdefgh) 333.5 560 T +0 F +(:) 391.07 560 T +6 F +(bdes -k abcdefgh < ) 158.48 536 T +7 F +(inputf) 295.21 536 T +(ile) 338.38 536 T +6 F +( > ) 359.97 536 T +7 F +(outputf) 381.56 536 T +(ile) 431.93 536 T +0 F +(The option ) 72 512 T +4 F +(-k) 127.3 512 T +0 F +( indicates the next ar) 137.96 512 T +(gument is the key) 237.01 512 T +(. Now ) 321.17 512 T +7 F +(outputf) 353.48 512 T +(ile) 403.86 512 T +0 F +( contains) 425.45 512 T +10 F +(16 0e eb af 68 a0 d0 19 f1 a2 9b 31 0d 8a 01 c3) 136.89 488 T +0 F +0.06 (Other modes are speci\336ed using command-line options, as is control of the way the key is) 108 464 P +(interpreted. The next sections contain several examples, and the Appendix has the manual page.) 72 444 T +4 F +(3. Keys and Parity) 72 412 T +0 F +0.58 (The key consists of 64 bits, and may be presented in any of hex, binary) 108 388 P +0.58 (, or as a string of) 456.48 388 P +5 F +0.12 (ASCII) 72 368 P +0 F +0.14 ( characters. If the key is given in hex or binary) 98.1 368 P +0.14 (, it is used as is with no changes. However) 322.21 368 P +0.14 (, if) 526.53 368 P +-0.27 (the key is given in ) 72 348 P +5 F +-0.23 (ASCII) 161.59 348 P +0 F +-0.27 (, a delicate problem arises: by convention, the parity bit is usually set to 0.) 187.69 348 P +-0.47 (This high-order bit is generally ignored by applications; but the DES +does not do so. Instead, it dis-) 72 328 P +-0.14 (cards the low-order bit, ef) 72 308 P +-0.14 (fectively reducing the size of the space of possible keys from 2) 195.44 308 P +5 F +-0.12 (56) 495.97 312.8 P +0 F +-0.14 ( to 2) 505.97 308 P +5 F +-0.12 (48) 527.01 312.8 P +0 F +-0.14 (.) 537 308 P +-0.46 ( T) 108 284 P +-0.46 (o preserve the size of the key space, the value of the parity bit must be related to the value) 117.03 284 P +-0.09 (in the low-order bit, so the program sets the high-order bit to make each character in the key be of) 72 264 P +-0.7 (odd parity) 72 244 P +-0.7 (. \050Note that the initial value of the parity bit is ) 119.49 244 P +3 F +-0.7 (not) 334.99 244 P +0 F +-0.7 ( used in this computation.\051 For example,) 350.31 244 P +(if the key is ) 72 224 T +6 F +(abcdefgh) 131.29 224 T +0 F +(, the actual key bits used are determined as follows:) 188.86 224 T +5 F +(ASCII) 99 200 T +0 F +( key) 125.1 200 T +6 F +(a) 243 200 T +(b) 279 200 T +(c) 315 200 T +(d) 351 200 T +(e) 387 200 T +(f) 423 200 T +(g) 459 200 T +(h) 495 200 T +5 F +(ASCII) 99 180 T +0 F +( key bits \050hex\051) 125.1 180 T +10 F +(61) 243 180 T +(62) 279 180 T +(63) 315 180 T +(64) 351 180 T +(65) 387 180 T +(66) 423 180 T +(67) 459 180 T +(68) 495 180 T +0 F +(parity) 99 160 T +(odd) 243 160 T +(odd) 279 160 T +(even) 315 160 T +(odd) 351 160 T +(even) 387 160 T +(even) 423 160 T +(odd) 459 160 T +(odd) 495 160 T +(key bits used \050hex\051) 99 140 T +10 F +(61) 243 140 T +(62) 279 140 T +(e3) 315 140 T +(64) 351 140 T +(e5) 387 140 T +(e6) 423 140 T +(67) 459 140 T +(68) 495 140 T +0 F +0.18 (This convention \050as opposed to requiring even parity) 108 120 P +0.18 (, or simply copying the low-order bit) 362 120 P +-0.41 (to the high-order bit\051 was chosen to provide compatibility with the encryption program ) 72 100 P +3 F +-0.41 (des) 486.77 100 P +0 F +-0.41 ( distrib-) 502.76 100 P +-0.52 (uted by Sun Microsystems, Inc. [4]. Whether the key is entered on the command line or on the key-) 72 80 P +FMENDPAGE +%%EndPage: "2" 5 +%%Page: "3" 5 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 3 of 11) 479.71 34.7 T +72 72 540 720 R +7 X +V +0 X +1.89 (board, by default it is processed into the same key schedule generated by Sun\325) 72 712 P +1.89 (s ) 471.02 712 P +3 F +1.89 (des) 480.58 712 P +0 F +1.89 (, so \336les) 496.56 712 P +(encrypted on a Sun can be decrypted using ) 72 692 T +3 F +(bdes) 280.51 692 T +0 F +( \050and vice versa\051.) 302.49 692 T +-0.3 (If the user does not wish to use the Sun convention, the option \320) 108 668 P +4 F +-0.3 (p) 411.9 668 P +0 F +-0.3 ( will disable the parity bit) 418.57 668 P +-0.62 (changing; with it, the parity bit is that of the character typed. This +is useful when the key is a known) 72 648 P +5 F +(ASCII) 72 628 T +0 F +( string and the \336le was encrypted on a system which does not alter parity bits.) 98.1 628 T +-0.24 (A key may be represented as a bit vector) 108 604 P +-0.24 (, rather than an ) 300.74 604 P +5 F +-0.2 (ASCII) 374.7 604 P +0 F +-0.24 ( string, in one of two ways. It) 400.8 604 P +0.19 (may be represented as a string of up to 16 hexadecimal digits; if fewer than 16 are given, the key) 72 584 P +0.16 (is right \336lled with 0 bits. Or) 72 564 P +0.16 (, it may be represented as a string of up to 64 binary digits, and again) 206.11 564 P +0.15 (if fewer than 64 are given, the key is right-\336lled with 0 bits. Bit +vector keys must be given on the) 72 544 P +0.51 (command line, and must begin with the characters ) 72 524 P +6 F +1.24 (0x) 320.28 524 P +0 F +0.51 ( or ) 334.67 524 P +6 F +1.24 (0X) 351.69 524 P +0 F +0.51 ( \050for hexadecimal\051 or ) 366.08 524 P +6 F +1.24 (0b) 472.71 524 P +0 F +0.51 ( or ) 487.1 524 P +6 F +1.24 (0B) 504.12 524 P +0 F +0.51 ( \050for) 518.51 524 P +(binary\051. For example, all of the following strings generate the same key schedule:) 72 504 T +5 F +(ASCII) 72 480 T +0 F +( key) 98.1 480 T +6 F +(abcdefgh) 180 480 T +0 F +(hexadecimal key) 72 460 T +6 F +(0x6162e364e5e66768) 180 460 T +0 F +(binary key) 72 440 T +6 F +(0b0110000101100010111000110110100011100101111000-) 180 440 T +(1100110011101101000) 180 420 T +0 F +-0.14 ( Note that giving the key on the command line as ) 108 396 P +6 F +-0.34 (0x6162636465666768) 345.27 396 P +0 F +-0.14 ( will ) 474.8 396 P +3 F +-0.14 (not) 499.17 396 P +0 F +-0.14 ( reset) 514.5 396 P +0.25 (the parity bits, because it is interpreted as a sequence of hex digits, not ) 72 376 P +5 F +0.21 (ASCII) 416.58 376 P +0 F +0.25 ( characters. The dif-) 442.68 376 P +0.69 (ference in interpretation is that here the user can specify all bits of the key exactly) 72 356 P +0.69 (, whereas \050on) 474.34 356 P +0.25 (most terminals\051 it is not possible to control how the parity bit of ) 72 336 P +5 F +0.21 (ASCII) 384.76 336 P +0 F +0.25 ( characters is set. On some) 410.85 336 P +0.36 (systems, it is possible to use a \322Meta\323 key to set the parity bit for an ) 72 316 P +5 F +0.3 (ASCII) 407.23 316 P +0 F +0.36 ( character; should this) 433.33 316 P +-0.3 (be the case and the user desire ) 72 296 P +3 F +-0.3 (bdes) 218.09 296 P +0 F +-0.3 ( not to reset the parity bit, the option ) 240.07 296 P +4 F +-0.3 (\320p) 415.25 296 P +0 F +-0.3 ( will force the parity bit) 427.92 296 P +(to be used as typed.) 72 276 T +4 F +(4. Encryption Output Repr) 72 244 T +(esentation) 211.05 244 T +0 F +0.01 (All modes of the DES output ciphertext in blocks; the size of the block is 64 bits \0508 bytes\051) 108 220 P +-0.25 (for ECB and CBC modes, and ) 72 200 P +3 F +-0.25 (k) 218.74 200 P +0 F +-0.25 ( bits for the ) 224.07 200 P +3 F +-0.25 (k) 281.02 200 P +0 F +-0.25 (-bit CFB and OFB modes, and there are as many out-) 286.35 200 P +-0.5 (put blocks as input blocks. However) 72 180 P +-0.5 (, as the length of the input is usually not a multiple of the block) 243.55 180 P +-0.35 (size, some padding is necessary; but as padding must be done by appending characters, these char-) 72 160 P +0.29 (acters must be distinguished from the input characters somehow) 72 140 P +0.29 (. The mechanism used is that the) 381.35 140 P +0.31 (last character of the \050decrypted\051 last block is the +\050integer\051 number of characters from the input in) 72 120 P +(the last block.) 72 100 T +FMENDPAGE +%%EndPage: "3" 6 +%%Page: "4" 6 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 4 of 11) 479.71 34.7 T +72 72 540 720 R +7 X +V +0 X +-0.59 (For example, suppose ) 108 712 P +7 F +-1.41 (inputf) 214.16 712 P +-1.41 (ile) 257.34 712 P +0 F +-0.59 ( contains \322) 278.93 712 P +6 F +-1.41 (This) 329.04 712 P +8 F +-0.65 (z) 357.83 712 P +6 F +-1.41 (is) 362.8 712 P +8 F +-0.65 (z) 377.2 712 P +6 F +-1.41 (a) 382.17 712 P +8 F +-0.65 (z) 389.37 712 P +6 F +-1.41 (test) 394.35 712 P +9 F +-0.59 (\277) 423.13 712 P +0 F +-0.59 (\323, and it is encrypted in) 431.02 712 P +(CBC mode using the key \322) 72 692 T +6 F +(abcdef#@) 200.93 692 T +0 F +(\323 and the initialization vector ) 258.5 692 T +6 F +(0x0) 401.4 692 T +0 F +(; the command is) 422.99 692 T +6 F +(bdes -k abcdef#@ < ) 158.48 668 T +7 F +(inputf) 295.21 668 T +(ile) 338.38 668 T +6 F +( > ) 359.97 668 T +7 F +(outputf) 381.56 668 T +(ile) 431.93 668 T +0 F +(as CBC is the default encryption mode and ) 72 644 T +6 F +(0x0) 281.2 644 T +0 F +( the default initialization vector:) 302.79 644 T +(text) 72 620 T +6 F +(T) 117 620 T +(h) 144 620 T +(i) 171 620 T +(s) 198 620 T +8 F +(z) 225 620 T +6 F +(i) 252 620 T +(s) 279 620 T +8 F +(z) 306 620 T +6 F +(a) 333 620 T +8 F +(z) 360 620 T +6 F +(t) 387 620 T +(e) 414 620 T +(s) 441 620 T +(t) 468 620 T +9 F +(\277) 495 620 T +0 F +(hex) 72 600 T +10 F +(54) 117 600 T +(68) 144 600 T +(69) 171 600 T +(73) 198 600 T +(20) 225 600 T +(69) 252 600 T +(73) 279 600 T +(20) 306 600 T +(61) 333 600 T +(20) 360 600 T +(74) 387 600 T +(65) 414 600 T +(73) 441 600 T +(74) 468 600 T +(0a) 495 600 T +0 F +(input) 72 580 T +10 F +(54) 117 580 T +(68) 144 580 T +(69) 171 580 T +(73) 198 580 T +(20) 225 580 T +(69) 252 580 T +(73) 279 580 T +(20) 306 580 T +(61) 333 580 T +(20) 360 580 T +(74) 387 580 T +(65) 414 580 T +(73) 441 580 T +(74) 468 580 T +(0a) 495 580 T +(07) 522 580 T +0 F +(output) 72 560 T +10 F +(a5) 117 560 T +(5f) 144 560 T +(81) 171 560 T +(53) 198 560 T +(51) 225 560 T +(98) 252 560 T +(47) 279 560 T +(02) 306 560 T +(db) 333 560 T +(5a) 360 560 T +(c5) 387 560 T +(fe) 414 560 T +(50) 441 560 T +(3d) 468 560 T +(40) 495 560 T +(ce) 522 560 T +0 F +0.04 (Notice that the text is 15 characters long, so there are 7 bytes following the last full block.) 108 540 P +3 F +0.22 (Bdes) 72 520 P +0 F +0.22 ( pads this to a full block by appending one byte containing the ) 95.32 520 P +5 F +0.19 (ASCII) 399.67 520 P +0 F +0.22 ( character with numeric) 425.77 520 P +(value 7 \050the ) 72 500 T +5 F +(ASCII) 131.62 500 T +0 F +( character <) 157.71 500 T +5 F +(BEL) 214.42 500 T +0 F +(>\051. The result is then encrypted.) 233.3 500 T +0.44 (As another example, suppose ) 108 476 P +7 F +1.07 (inputf) 253.34 476 P +1.07 (ile) 296.52 476 P +0 F +0.44 ( contains \322) 318.11 476 P +6 F +1.07 (test) 370.29 476 P +0 F +0.44 (\323, and it is encrypted in ECB) 399.08 476 P +(mode using the key \322) 72 456 T +6 F +(abcdef#@) 173.93 456 T +0 F +(\323; the command is) 231.5 456 T +6 F +(bdes -b \320k abcdef#@ < ) 147.69 432 T +7 F +(inputf) 306 432 T +(ile) 349.18 432 T +6 F +( > ) 370.76 432 T +7 F +(outputf) 392.35 432 T +(ile) 442.73 432 T +0 F +(because the option ) 72 408 T +4 F +(\320b) 164.26 408 T +0 F +( signi\336es ECB mode:) 176.93 408 T +(text) 72 384 T +6 F +(t) 144 384 T +(e) 171 384 T +(s) 198 384 T +(t) 225 384 T +0 F +(hex) 72 364 T +10 F +(74) 144 364 T +(65) 171 364 T +(73) 198 364 T +(74) 225 364 T +0 F +(input) 72 344 T +10 F +(74) 144 344 T +(65) 171 344 T +(73) 198 344 T +(74) 225 344 T +(00) 252 344 T +(00) 279 344 T +(00) 306 344 T +(04) 333 344 T +0 F +(output) 72 324 T +10 F +(0d) 144 324 T +(8a) 171 324 T +(6e) 198 324 T +(57) 225 324 T +(9c) 252 324 T +(8f) 279 324 T +(27) 306 324 T +(5d) 333 324 T +0 F +-0.31 (Finally) 108 304 P +-0.31 (, if the length of the message is indeed a multiple of the block size, an extra block of) 141.21 304 P +0.83 (all 0 bits is added. Suppose ) 72 284 P +7 F +1.99 (inputf) 210.57 284 P +1.99 (ile) 253.74 284 P +0 F +0.83 ( contains \322) 275.33 284 P +6 F +1.99 (test) 328.28 284 P +9 F +0.83 (\277) 357.07 284 P +0 F +0.83 (\323, and it is encrypted in 40-bit CFB) 364.96 284 P +1.51 (mode using the key \322) 72 264 P +6 F +3.62 (abcdef#@) 179.96 264 P +0 F +1.51 (\323 and the initialization vector ) 237.53 264 P +6 F +3.62 (0x0123456789abcdef) 387.97 264 P +0 F +1.51 (; the) 517.5 264 P +(command is) 72 244 T +6 F +-0.99 (bdes -f40 -v0x0123456789abcdef -kabcdef#@ < ) 72 220 P +7 F +-0.99 (inputf) 383.67 220 P +-0.99 (ile) 426.85 220 P +6 F +-0.99 ( > ) 448.43 220 P +7 F +-0.99 (outputf) 468.04 220 P +-0.99 (ile) 518.41 220 P +0 F +0.16 (because the option ) 72 196 P +4 F +0.16 (\320f40 ) 164.75 196 P +0 F +0.16 (signi\336es 40-bit CFB mode, and ) 189.89 196 P +4 F +0.16 (-v0x01234566789abcdef) 343.96 196 P +0 F +0.16 ( sets the initial-) 465.89 196 P +(ization vector \050note that spaces between the option and its ar) 72 176 T +(gument are optional\051:) 361.57 176 T +(text) 72 152 T +6 F +(t) 144 152 T +(e) 171 152 T +(s) 198 152 T +(t) 225 152 T +9 F +(\277) 252 152 T +0 F +(hex) 72 132 T +10 F +(74) 144 132 T +(65) 171 132 T +(73) 198 132 T +(74) 225 132 T +(0a) 252 132 T +0 F +(input) 72 112 T +10 F +(74) 144 112 T +(65) 171 112 T +(73) 198 112 T +(74) 225 112 T +(0a) 252 112 T +(00) 279 112 T +(00) 306 112 T +(00) 333 112 T +(00) 360 112 T +(00) 387 112 T +0 F +(output) 72 92 T +10 F +(e2) 144 92 T +(c2) 171 92 T +(69) 198 92 T +(a4) 225 92 T +(5b) 252 92 T +(3c) 279 92 T +(3d) 306 92 T +(b3) 333 92 T +(f5) 360 92 T +(3c) 387 92 T +FMENDPAGE +%%EndPage: "4" 7 +1 12 /Times-BoldItalic FMDEFINEFONT +2 14 /Symbol FMDEFINEFONT +%%Page: "5" 7 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 5 of 11) 479.71 34.7 T +72 72 540 720 R +7 X +V +0 X +(Note here the block size is 40 bits \0505 bytes\051, not 64 bits \0508 bytes\051.) 108 712 T +-0.4 (This technique allows complete compatibility with Sun\325) 108 688 P +-0.4 (s ) 374.11 688 P +3 F +-0.4 (des) 381.37 688 P +0 F +-0.4 ( program. In Sun\325) 397.36 688 P +-0.4 (s implemen-) 480.77 688 P +0.02 (tation, padding is done with random bytes rather than bytes containing all zero bits. Cryptograph-) 72 668 P +0.85 (ically) 72 648 P +0.85 (, this makes no dif) 97.87 648 P +0.85 (ference, as the DES is a suf) 189.32 648 P +0.85 (\336ciently good random cipher to obscure the) 325.74 648 P +(input \050see for example [2], Chapter 6\051, and known plaintext attacks are very dif) 72 628 T +(\336cult [1].) 451.82 628 T +4 F +(5. Differ) 72 596 T +(ences Between the Standard CFB and OFB Modes and ) 114.41 596 T +1 F +(bdes) 397.26 596 T +0 F +-0.11 (The UNIX operating system treats all \336les as streams of 8-bit bytes. In order to implement) 108 572 P +-0.08 (the CFB and OFB modes properly) 72 552 P +-0.08 (, it would be necessary to read ) 235.74 552 P +3 F +-0.08 (k) 383.74 552 P +0 F +-0.08 ( bits from the \336le, where ) 389.07 552 P +3 F +-0.08 (k) 509.51 552 P +0 F +-0.08 ( is an) 514.84 552 P +0.98 (integer between 1 and 64 inclusive. However) 72 532 P +0.98 (, this would require considerable buf) 294.22 532 P +0.98 (fering and be) 474.77 532 P +0.23 (quite inef) 72 512 P +0.23 (\336cient and prohibitively slow) 117.65 512 P +0.23 (. For these reasons, the current implementation of ) 258.48 512 P +3 F +0.23 (bdes) 501.48 512 P +0 F +0.23 ( re-) 523.46 512 P +0.47 (quires that ) 72 492 P +3 F +0.47 (k) 126.23 492 P +0 F +0.47 ( be a multiple of 8, so that an integral number of bytes will always be read from the) 131.56 492 P +(\336le. Other than this change, this mode is implemented as described in [3].) 72 472 T +-0.58 (A similar observation holds for the alternate CFB mode described in [3]. Here, only the low) 108 448 P +0.23 (7 bits of each byte are signi\336cant, and hence the parameter ) 72 428 P +3 F +0.23 (k) 358.95 428 P +0 F +0.23 ( is an integer from 1 to 56 inclusive;) 364.28 428 P +(bdes requires k to be a multiple of 7. The high-order bit is retained for encryption and decryption,) 72 408 T +(but output \050whether from encryption or decryption\051 always has the high-order bit set to zero.) 72 388 T +4 F +(6. Message Authentication Code Modes) 72 356 T +0 F +0.57 (The Data Encryption Standard provides two modes of authentication, each providing be-) 108 332 P +1.27 (tween 1 and 64 bits of authentication data. In both cases an ) 72 312 P +3 F +1.27 (n) 373.32 312 P +0 F +1.27 (-bit message authentication code) 379.32 312 P +0.62 (\050MAC\051 is generated, where 1) 72 292 P +2 F +0.73 ( ) 214.71 292 P +9 F +0.62 (\243) 218.94 292 P +0 F +0.62 ( ) 225.52 292 P +3 F +0.62 (n) 229.15 292 P +0 F +0.62 ( ) 235.14 292 P +9 F +0.62 (\243) 238.76 292 P +0 F +0.62 ( 64. The \336rst is based on the CBC encryption mode, and the) 245.35 292 P +(second on CFB mode. Both work the same.) 72 272 T +0.13 (First, the \336le is padded to a multiple of the block size by appending enough zero bits. It is) 108 248 P +-0.16 (then encrypted using the standard CBC \050or CFB\051 algorithm, but +all encrypted text is discarded ex-) 72 228 P +-0.44 (cept for the last block. The ) 72 208 P +3 F +-0.44 (n) 200.9 208 P +0 F +-0.44 ( leading bits of the last block are used as the MAC. Note that the block) 206.9 208 P +(size constrains the number of bits available as the MAC.) 72 188 T +0.71 (The implementation allows the user to specify that the MAC is to be computed in either) 108 164 P +-0.01 (CBC or CFB mode, and the user can specify any number of bits from 1 to 64 inclusive. However) 72 144 P +-0.01 (,) 537 144 P +-0.11 (because the UNIX operating system can only output bits in multiples of 8, if the number of bits of) 72 124 P +-0.08 (MAC is not a multiple of 8, the MAC will be right-padded with the minimum number of zero bits) 72 104 P +-0.31 (necessary to make the MAC length be a multiple of 8. However) 72 84 P +-0.31 (, note that as the standard \050[3], Ap-) 374.6 84 P +FMENDPAGE +%%EndPage: "5" 8 +%%Page: "6" 8 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 6 of 11) 479.71 34.7 T +72 72 540 720 R +7 X +V +0 X +-0.14 (pendix F\051 requires an incomplete \336nal block be right-padded with +zeroes, the technique of forcing) 72 712 P +(the last octet to contain the number of bytes in the message is ) 72 692 T +3 F +(not) 369.47 692 T +0 F +( used here.) 384.8 692 T +-0.39 (For example, suppose ) 108 668 P +7 F +-0.94 (inputf) 214.76 668 P +-0.94 (ile) 257.93 668 P +0 F +-0.39 ( contains \322) 279.52 668 P +6 F +-0.94 (This) 330.04 668 P +8 F +-0.43 (z) 358.82 668 P +6 F +-0.94 (is) 363.8 668 P +8 F +-0.43 (z) 378.19 668 P +6 F +-0.94 (a) 383.17 668 P +8 F +-0.43 (z) 390.36 668 P +6 F +-0.94 (test) 395.34 668 P +9 F +-0.39 (\277) 424.13 668 P +0 F +-0.39 (\323, and a 64-bit MAC is) 432.02 668 P +-0.73 (to be generated using CBC mode, the key \322) 72 648 P +6 F +-1.74 (abcdef#@) 274.39 648 P +0 F +-0.73 (\323 and the initialization vector ) 331.96 648 P +6 F +-1.74 (0x0) 471.23 648 P +0 F +-0.73 (; the com-) 492.82 648 P +(mand is) 72 628 T +6 F +(bdes -m 64 -k abcdef#@ < ) 136.89 604 T +7 F +(inputf) 316.79 604 T +(ile) 359.97 604 T +6 F +( > ) 381.56 604 T +7 F +(outputf) 403.15 604 T +(ile) 453.52 604 T +0 F +(as CBC is the default encryption mode and ) 72 580 T +6 F +(0x0) 281.2 580 T +0 F +( the default initialization vector:) 302.79 580 T +(text) 72 556 T +6 F +(T) 117 556 T +(h) 144 556 T +(i) 171 556 T +(s) 198 556 T +8 F +(z) 225 556 T +6 F +(i) 252 556 T +(s) 279 556 T +8 F +(z) 306 556 T +6 F +(a) 333 556 T +8 F +(z) 360 556 T +6 F +(t) 387 556 T +(e) 414 556 T +(s) 441 556 T +(t) 468 556 T +9 F +(\277) 495 556 T +0 F +(hex) 72 536 T +10 F +(54) 117 536 T +(68) 144 536 T +(69) 171 536 T +(73) 198 536 T +(20) 225 536 T +(69) 252 536 T +(73) 279 536 T +(20) 306 536 T +(61) 333 536 T +(20) 360 536 T +(74) 387 536 T +(65) 414 536 T +(73) 441 536 T +(74) 468 536 T +(0a) 495 536 T +0 F +(input) 72 516 T +10 F +(54) 117 516 T +(68) 144 516 T +(69) 171 516 T +(73) 198 516 T +(20) 225 516 T +(69) 252 516 T +(73) 279 516 T +(20) 306 516 T +(61) 333 516 T +(20) 360 516 T +(74) 387 516 T +(65) 414 516 T +(73) 441 516 T +(74) 468 516 T +(0a) 495 516 T +(00) 522 516 T +0 F +(output) 72 496 T +10 F +(43) 117 496 T +(18) 144 496 T +(de) 171 496 T +(74) 198 496 T +(24) 225 496 T +(a9) 252 496 T +(65) 279 496 T +(d1) 306 496 T +0 F +0.04 (Notice that the text is 15 characters long, so there are 7 bytes following the last full block.) 108 476 P +3 F +(Bdes) 72 456 T +0 F +( pads this to a full block by appending a zero-\336lled byte. The result is then encrypted and the) 95.32 456 T +(last block of output is used as the MAC.) 72 436 T +0.06 (As another example, suppose we used the same text, and wanted a 36-bit MAC to be gen-) 108 412 P +6.91 (erated using 40-bit CFB mode, the key \322) 72 392 P +6 F +16.58 (abcdef#@) 314.9 392 P +0 F +6.91 (\323 and the initialization vector) 372.47 392 P +6 F +(0x0123456789abcdef) 72 372 T +0 F +(; the command is) 201.53 372 T +6 F +(bdes -m 36 -f 40 -v 0x0123456789abcdef < ) 79.32 348 T +7 F +(inputf) 374.36 348 T +(ile) 417.54 348 T +6 F +( > ) 439.13 348 T +7 F +(outputf) 460.71 348 T +(ile) 511.09 348 T +0 F +-0.19 (where ) 72 324 P +4 F +-0.19 (\320m 36) 104.11 324 P +0 F +-0.19 ( is the option to generate a 36-bit MAC, ) 134.91 324 P +4 F +-0.19 (\320f 40) 327.79 324 P +0 F +-0.19 ( indicates 40-bit CFB is to be used, and) 352.58 324 P +4 F +-0.31 (\320v 0x123456789abcdef) 72 304 P +0 F +-0.31 ( sets the initialization vector) 186.62 304 P +-0.31 (. Note that, as the key is not given on the com-) 319.95 304 P +(mand line, the user will be prompted for it. It gives:) 72 284 T +(text) 72 260 T +6 F +(T) 117 260 T +(h) 144 260 T +(i) 171 260 T +(s) 198 260 T +8 F +(z) 225 260 T +6 F +(i) 252 260 T +(s) 279 260 T +8 F +(z) 306 260 T +6 F +(a) 333 260 T +8 F +(z) 360 260 T +6 F +(t) 387 260 T +(e) 414 260 T +(s) 441 260 T +(t) 468 260 T +9 F +(\277) 495 260 T +0 F +(hex) 72 240 T +10 F +(54) 117 240 T +(68) 144 240 T +(69) 171 240 T +(73) 198 240 T +(20) 225 240 T +(69) 252 240 T +(73) 279 240 T +(20) 306 240 T +(61) 333 240 T +(20) 360 240 T +(74) 387 240 T +(65) 414 240 T +(73) 441 240 T +(74) 468 240 T +(0a) 495 240 T +0 F +(input) 72 220 T +10 F +(54) 117 220 T +(68) 144 220 T +(69) 171 220 T +(73) 198 220 T +(20) 225 220 T +(69) 252 220 T +(73) 279 220 T +(20) 306 220 T +(61) 333 220 T +(20) 360 220 T +(74) 387 220 T +(65) 414 220 T +(73) 441 220 T +(74) 468 220 T +(0a) 495 220 T +0 F +(output) 72 200 T +10 F +(2b) 117 200 T +(18) 144 200 T +(68) 171 200 T +(2d) 198 200 T +(60) 225 200 T +0 F +0.19 (Note that the MAC is padded on the right by four zero bits to produce \336ve characters that) 108 180 P +(can be output.) 72 160 T +4 F +(7. Differ) 72 128 T +(ences Between ) 114.41 128 T +1 F +(bdes) 191.01 128 T +4 F +( and Sun\325) 212.99 128 T +(s DES Implementation) 261.88 128 T +0 F +0.02 (The program ) 108 104 P +3 F +0.02 (bdes) 173.33 104 P +0 F +0.02 ( is designed to be completely compatible with Sun Microsystems, Inc.\325) 195.31 104 P +0.02 (s) 535.33 104 P +0.57 (implementation of the Data Encryption Standard, called ) 72 84 P +3 F +0.57 (des) 347.14 84 P +0 F +0.57 ( and described in [4]. Thus, \336les en-) 363.13 84 P +FMENDPAGE +%%EndPage: "6" 9 +%%Page: "7" 9 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 7 of 11) 479.71 34.7 T +72 72 540 720 R +7 X +V +0 X +0.44 (crypted using ) 72 712 P +3 F +0.44 (des) 140.84 712 P +0 F +0.44 ( can be decrypted using ) 156.83 712 P +3 F +0.44 (bdes) 275.29 712 P +0 F +0.44 (, and vice versa, provided modes common to both) 297.27 712 P +-0.34 (are used. However) 72 692 P +-0.34 (, ) 160.41 692 P +3 F +-0.34 (bdes) 166.06 692 P +0 F +-0.34 ( does not allow \336les to be named on the command line, nor does it support) 188.05 692 P +-0.68 (hardware devices \050and so the ) 72 672 P +4 F +-0.68 (-s) 210.83 672 P +0 F +-0.68 ( and ) 219.49 672 P +4 F +-0.68 (-f) 241.45 672 P +0 F +-0.68 ( options of Sun\325) 249.44 672 P +-0.68 (s ) 323.71 672 P +3 F +-0.68 (des) 330.7 672 P +0 F +-0.68 ( are not available\051. Further) 346.69 672 P +-0.68 (, as encryption) 471.07 672 P +-0.05 (is the default, the Sun ) 72 652 P +3 F +-0.05 (des) 179.01 652 P +0 F +-0.05 ( ) 195 652 P +4 F +-0.05 (-e) 197.95 652 P +0 F +-0.05 ( option is not recognized. As the manual page to ) 207.27 652 P +3 F +-0.05 (bdes) 441.6 652 P +0 F +-0.05 ( is in the appen-) 463.59 652 P +(dix, these dif) 72 632 T +(ferences will not be elaborated upon further) 134.08 632 T +(.) 343.24 632 T +0.44 (Sun\325) 108 608 P +0.44 (s ) 130 608 P +3 F +0.44 (des) 138.1 608 P +0 F +0.44 ( supports the use of special-purpose hardware to encrypt and decrypt. Although) 154.09 608 P +3 F +1.33 (bdes) 72 588 P +0 F +1.33 ( does not directly support the use of such hardware, it uses the library routine ) 93.98 588 P +3 F +1.33 (encrypt) 487.05 588 P +0 F +1.33 (\0503\051,) 523.02 588 P +-0.09 (which may) 72 568 P +-0.09 (. Hardware support was not included directly to support as lar) 124.1 568 P +-0.09 (ge a number of platforms) 419.11 568 P +(as possible with installers needing to know as little about the hardware as possible.) 72 548 T +-0.08 (Sun\325) 108 524 P +-0.08 (s ) 130 524 P +3 F +-0.08 (des) 137.58 524 P +0 F +-0.08 ( supports only the CBC and ECB encryption modes; ) 153.57 524 P +3 F +-0.08 (bdes) 407.07 524 P +0 F +-0.08 ( supports all modes de-) 429.05 524 P +0.26 (scribed in [3] \050although CFB and OFB are not completely supported\051 as well as both CBC-based) 72 504 P +(and CFB-based MACs.) 72 484 T +0.15 (Although input with length not a multiple of the block size is handled in the same way by) 108 460 P +-0.47 (both ) 72 440 P +3 F +-0.47 (des) 95.85 440 P +0 F +-0.47 ( and ) 111.84 440 P +3 F +-0.47 (bdes) 134.21 440 P +0 F +-0.47 (, dif) 156.19 440 P +-0.47 (ferent values of the padding bytes are used in all but the last byte of the input.) 174.82 440 P +(Where ) 72 420 T +3 F +(bdes) 106.96 420 T +0 F +( puts zero bytes, ) 128.94 420 T +3 F +(des) 209.89 420 T +0 F +( puts bytes containing random values. The reason for Sun\325) 225.87 420 T +(s doing) 505.02 420 T +0.47 (so is to prevent a known plaintext attack on the \336le should an +attacker determine that the input\325) 72 400 P +0.47 (s) 535.33 400 P +-0.29 (length were a multiple of the block size. W) 72 380 P +-0.29 (ith ) 276.05 380 P +3 F +-0.29 (bdes) 291.43 380 P +0 F +-0.29 (, the plaintext contents of the last block of input) 313.41 380 P +0.31 (for such a \336le is known \050a block with all bits zero\051. W) 72 360 P +0.31 (ith ) 333.99 360 P +3 F +0.31 (des) 349.96 360 P +0 F +0.31 (, the plaintext contents of that block) 365.95 360 P +0.73 (are not known. Cryptanalytically) 72 340 P +0.73 (, given the information about the strength of the DES currently) 231.29 340 P +0.2 (known, it is widely believed that known plaintext attacks are infeasible +\050see for example [1]\051 and) 72 320 P +1.86 (so initializing and invoking the pseudorandom number generator seems unnecessary) 72 300 P +1.86 (. But this) 492.63 300 P +(means that ciphertexts produced from a plaintext by ) 72 280 T +3 F +(bdes) 324.48 280 T +0 F +( and ) 346.47 280 T +3 F +(des) 369.78 280 T +0 F +( will dif) 385.77 280 T +(fer in the last block.) 423.54 280 T +4 F +(Refer) 72 248 T +(ences) 100.41 248 T +0 F +([1]) 72 224 T +0.37 (D. Denning, \322The Data Encryption Standard: Fifteen Y) 108 224 P +0.37 (ears of Public Scrutiny) 374.87 224 P +0.37 (,\323 ) 484.8 224 P +3 F +0.37 (Pr) 496.49 224 P +0.37 (oceed-) 508.04 224 P +-0.47 (ings of the Sixth Annual Computer Security Applications Confer) 108 204 P +-0.47 (ence) 411.65 204 P +0 F +-0.47 ( pp. x\320xv \050Dec. 1990\051.) 433.62 204 P +([2]) 72 180 T +(A. Konheim, ) 108 180 T +3 F +(Cryptography: A Primer) 173.29 180 T +0 F +(, John W) 291.4 180 T +(iley and Sons, Inc., New Y) 333.9 180 T +(ork, NY \0501981\051.) 461.94 180 T +([3]) 72 156 T +3 F +0.63 (DES Modes of Operation) 108 156 P +0 F +0.63 (, Federal Information Processing Standards Publication 81, Na-) 231.47 156 P +-0.07 (tional Bureau of Standards, U.S. Department of Commerce, W) 108 136 P +-0.07 (ashington, DC \050Dec. 1980\051.) 407.62 136 P +([4]) 72 112 T +3 F +(UNIX User) 108 112 T +(\325) 162.74 112 T +(s Manual) 165.18 112 T +0 F +(, Sun Microsystems Inc., Mountain V) 210.16 112 T +(iew) 390 112 T +(, CA \050Mar) 406.54 112 T +(. 1988\051.) 455.51 112 T +4 F +(Appendix. The UNIX System Manual Page for ) 72 80 T +1 F +(bdes) 313.2 80 T +FMENDPAGE +%%EndPage: "7" 10 +1 11 /Times-Bold FMDEFINEFONT +%%Page: "8" 10 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 8 of 11) 479.71 34.7 T +72 72 540 720 R +7 X +V +1 F +0 X +(NAME) 72 712.67 T +0 F +(bdes - encrypt/decrypt using the Data Encryption Standard) 108 689 T +1 F +(SYNOPSIS) 72 663.67 T +4 F +(bdes) 108 640 T +0 F +( [) 131.33 640 T +3 F +( ) 138.32 640 T +4 F +(-abdp) 141.32 640 T +0 F +( ] [ ) 171.31 640 T +4 F +(-F) 188.3 640 T +0 F +( ) 199.62 640 T +3 F +(b) 202.62 640 T +0 F +( ] [ ) 208.61 640 T +4 F +(-f) 225.6 640 T +0 F +( ) 233.58 640 T +3 F +(b) 236.58 640 T +0 F +( ] [ ) 242.58 640 T +4 F +(-k) 259.56 640 T +0 F +( ) 270.22 640 T +3 F +(key) 273.22 640 T +0 F +( ] [ ) 289.2 640 T +4 F +(-m) 306.18 640 T +0 F +( ) 320.16 640 T +3 F +(b) 323.16 640 T +0 F +( ] [ ) 329.16 640 T +4 F +(-o) 346.14 640 T +0 F +( ) 356.13 640 T +3 F +(b) 359.13 640 T +0 F +( ] [ ) 365.13 640 T +4 F +(-v) 382.11 640 T +0 F +( ) 392.1 640 T +3 F +(vector) 395.1 640 T +0 F +( ]) 425.07 640 T +1 F +(DESCRIPTION) 72 614.67 T +3 F +-0.69 (Bdes) 108 591 P +0 F +-0.69 ( reads from the standard input and writes on the standard output. It implements all DES) 131.32 591 P +-0.09 (modes of operation described in FIPS PUB 81 including alternative cipher feedback mode) 108 577 P +0.74 (and both authentication modes. All modes but the electronic code book mode require an) 108 563 P +-0.14 (initialization vector; if none is supplied, the zero vector is used. T) 108 549 P +-0.14 (o protect the key and ini-) 420.44 549 P +0.29 (tialization vector from being read by) 108 535 P +3 F +0.29 ( ps) 284.98 535 P +0 F +0.29 (\0501\051, ) 298.94 535 P +3 F +0.29 (bdes ) 319.21 535 P +0 F +0.29 (hides its ar) 344.48 535 P +0.29 (guments on entry) 396.81 535 P +0.29 (. If no ) 479.89 535 P +3 F +0.29 (key ) 512.74 535 P +0 F +0.29 (is) 532 535 P +-0.61 (given, one is requested from the controlling terminal if that can be opened, or from the stan-) 108 521 P +(dard input if not.) 108 507 T +-0.17 (The key and initialization vector are taken as sequences of ) 108 489 P +5 F +-0.14 (ASCII) 389.38 489 P +0 F +-0.17 ( characters which are then) 415.48 489 P +-0.35 (mapped into their bit representations. If either begins with +\3240x\325 or \3240X\325, that one is taken as) 108 475 P +1.02 (a sequence of hexadecimal digits indicating the bit pattern; if either begins with \3240b\325 or) 108 461 P +-0.73 (\3240B\325, that one is taken as a sequence of binary digits +indicating the bit pattern. In either case,) 108 447 P +-0.37 (only the leading 64 bits of the key or initialization vector are used, and if fewer than 64 bits) 108 433 P +0.35 (are provided, enough 0 bits are appended to pad the key to 64 bits. Note that if the key is) 108 419 P +0.03 (not entered on the command line, it is interpreted in the same way) 108 405 P +0.03 (, because with 4.4 BSD,) 424.31 405 P +-0.36 (the password reading function ) 108 391 P +3 F +-0.36 (getpass) 254.45 391 P +0 F +-0.36 (\0503\051 allows enough characters for either hex or binary) 290.43 391 P +(keys to be entered.) 108 377 T +0.04 (According to the DES standard, the low-order bit of each character in the key string is de-) 108 359 P +-0.18 (leted. Since most ) 108 345 P +5 F +-0.15 (ASCII) 192.75 345 P +0 F +-0.18 ( representations set the high-order bit to 0, simply deleting the low-) 218.84 345 P +-0.29 (order bit ef) 108 331 P +-0.29 (fectively reduces the size of the key space from 2) 160.49 331 P +5 F +-0.24 (56) 394.67 335.8 P +0 F +-0.29 ( to 2) 404.67 331 P +5 F +-0.24 (48) 425.41 335.8 P +0 F +-0.29 ( keys. T) 435.4 331 P +-0.29 (o prevent this,) 472.29 331 P +-0.46 (the high-order bit must be a function depending in part upon the low-order bit; so, the high-) 108 317 P +0.11 (order bit is set to whatever value gives odd parity) 108 303 P +0.11 (. This preserves the key space size. Note) 345.05 303 P +(this resetting of the parity bit is ) 108 289 T +3 F +(not) 260.92 289 T +0 F +( done if the key is given in binary or hex.) 276.24 289 T +-0.38 (By default, the standard input is encrypted using cipher block chaining mode and is written) 108 271 P +0.18 (to the standard output. Using the same key for encryption and decryption preserves plain-) 108 257 P +(text, so) 108 243 T +( bdes ) 225.81 225 T +3 F +(key) 253.79 225 T +0 F +( < plaintext | bdes \320i ) 269.77 225 T +3 F +(key) 370.21 225 T +0 F +( ) 386.19 225 T +(is a very expensive equivalent of ) 108 201 T +3 F +(cat) 268.54 201 T +0 F +(\0501\051.) 283.2 201 T +(Options are:) 108 183 T +( ) 108 165 T +4 F +(\320a) 111 165 T +0 F +-0.75 (The key and initialization vector strings are to be taken as ) 144 165 P +5 F +-0.62 (ASCII) 415.89 165 P +0 F +-0.75 ( suppressing the spe-) 441.98 165 P +0.3 (cial interpretation given to leading \3240x\325, \3240X\325, \3240b\325, +and \3240B\325 characters. Note this) 144 151 P +(\337ag applies to ) 144 137 T +3 F +(both) 214.29 137 T +0 F +( the key and initialization vector) 235.62 137 T +(.) 389.85 137 T +4 F +(\320b) 108 119 T +0 F +(Use electronic code book mode.) 144 119 T +4 F +(\320d) 108 101 T +0 F +(Decrypt the input.) 144 101 T +FMENDPAGE +%%EndPage: "8" 11 +%%Page: "9" 11 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 9 of 11) 479.71 34.7 T +72 72 540 720 R +7 X +V +4 F +0 X +(\320f) 108 712 T +0 F +( ) 117.99 712 T +3 F +(b) 120.99 712 T +0 F +-0.29 (Use ) 144 712 P +3 F +-0.29 (b) 165.36 712 P +0 F +-0.29 (-bit cipher feedback mode. Currently ) 171.35 712 P +3 F +-0.29 (b) 350.42 712 P +0 F +-0.29 ( must be a multiple of 8 between 8 and) 356.42 712 P +(64 inclusive \050this does not conform to the standard CFB mode speci\336cation\051.) 144 698 T +4 F +(\320F) 108 680 T +0 F +( ) 121.32 680 T +3 F +(b) 124.32 680 T +0 F +-0.29 (Use ) 144 680 P +3 F +-0.29 (b) 165.36 680 P +0 F +-0.29 (-bit alternative cipher feedback mode. Currently ) 171.36 680 P +3 F +-0.29 (b) 403.77 680 P +0 F +-0.29 ( must be a multiple of 7 be-) 409.77 680 P +-0.12 (tween 7 and 56 inclusive \050this does not conform to the alternative CFB mode spec-) 144 666 P +(i\336cation\051.) 144 652 T +4 F +(\320k) 108 634 T +0 F +( ) 120.67 634 T +3 F +(key) 123.66 634 T +0 F +0.37 (Use the string ) 144 616 P +3 F +0.37 (key) 214.74 616 P +0 F +0.37 ( as the cryptographic key) 230.72 616 P +0.37 (. If this ar) 352.01 616 P +0.37 (gument is not given, the user) 399.54 616 P +(will be prompted for the key) 144 602 T +(.) 280.12 602 T +4 F +(\320m) 108 584 T +0 F +( ) 123.99 584 T +3 F +(b) 126.99 584 T +0 F +0.71 (Compute a message authentication code \050MAC\051 of ) 144 584 P +3 F +0.71 (b) 395.78 584 P +0 F +0.71 ( bits on the input. ) 401.77 584 P +3 F +0.71 (b) 491.94 584 P +0 F +0.71 ( must be) 497.94 584 P +0.11 (between 1 and 64 inclusive; if ) 144 570 P +3 F +0.11 (b) 291.87 570 P +0 F +0.11 ( is not a multiple of 8, enough 0 bits will be added) 297.86 570 P +-0.44 (to pad the MAC length to the nearest multiple of 8. Only the MAC is output. MACs) 144 556 P +(are only available in cipher block chaining mode or in cipher feedback mode.) 144 542 T +4 F +(\320o) 108 524 T +0 F +( ) 119.99 524 T +3 F +(b) 122.99 524 T +0 F +-0.34 (Use ) 144 524 P +3 F +-0.34 (b) 165.31 524 P +0 F +-0.34 (-bit output feedback mode. Currently ) 171.31 524 P +3 F +-0.34 (b) 350.83 524 P +0 F +-0.34 ( must be a multiple of 8 between 8 and) 356.83 524 P +(64 inclusive \050this does not conform to the OFB mode speci\336cation\051.) 144 510 T +4 F +(\320p) 108 492 T +0 F +-0.14 (Disable the resetting of the parity bit. This \337ag forces the parity bit of the key to be) 144 492 P +0.03 (used as typed, rather than making each character be of odd parity) 144 478 P +0.03 (. It is used only if) 455.91 478 P +(the key is given in ) 144 464 T +5 F +(ASCII) 234.95 464 T +0 F +(.) 261.04 464 T +4 F +(\320v) 108 446 T +0 F +( ) 119.99 446 T +3 F +(vector) 122.99 446 T +0 F +-0.5 (Set the initialization vector to ) 144 428 P +3 F +-0.5 (v) 286.44 428 P +0 F +-0.5 (; the vector is interpreted in the same way as the key) 291.76 428 P +-0.5 (.) 537 428 P +(The vector is ignored in electronic codebook mode.) 144 414 T +-0.55 (The DES is considered a very strong cryptosystem, and other than table lookup attacks, key) 108 396 P +0.24 (search attacks, and Hellman\325) 108 382 P +0.24 (s time-memory tradeof) 246.61 382 P +0.24 (f \050all of which are very expensive and) 356.8 382 P +0.66 (time-consuming\051, no cryptanalytic methods for breaking the DES are known in the open) 108 368 P +0.33 (literature. No doubt the choice of keys and key security are the most vulnerable aspect of) 108 354 P +3 F +(bdes) 108 340 T +0 F +(.) 129.98 340 T +4 F +(IMPLEMENT) 72 314 T +(A) 146.41 314 T +(TION NOTES) 154.18 314 T +0 F +0.57 (For implementors wishing to write software compatible with this program, the following) 108 290 P +-0.23 (notes are provided. This software is completely compatible with the implementation of the) 108 276 P +(data encryption standard distributed by Sun Microsystems, Inc.) 108 262 T +0.11 (In the ECB and CBC modes, plaintext is encrypted in units of 64 bits \0508 bytes, also called) 108 244 P +0.52 (a block\051. T) 108 230 P +0.52 (o ensure that the plaintext \336le is encrypted correctly) 160.49 230 P +0.52 (, ) 413.01 230 P +3 F +0.52 (bdes ) 419.53 230 P +0 F +0.52 (will \050internally\051 ap-) 445.03 230 P +0.29 (pend from 1 to 8 bytes, the last byte containing an integer stating how many bytes of that) 108 216 P +-0.71 (\336nal block are from the plaintext \336le, and encrypt the resulting block. Hence, when decrypt-) 108 202 P +0.27 (ing, the last block may contain from 0 to 7 characters present in the plaintext \336le, and the) 108 188 P +-0.59 (last byte tells how many) 108 174 P +-0.59 (. Note that if during decryption the last byte of the \336le does not con-) 221.46 174 P +0.41 (tain an integer between 0 and 7, either the \336le has been corrupted or an incorrect key has) 108 160 P +0.48 (been given. A similar mechanism is used for the OFB and CFB modes, except that those) 108 146 P +0.26 (simply require the length of the input to be a multiple of the mode size, and the \336nal byte) 108 132 P +-0.73 (contains an integer between 0 and one less than the number of bytes being used as the mode.) 108 118 P +(\050This was another reason that the mode size must be a multiple of 8 for those modes.\051) 108 104 T +FMENDPAGE +%%EndPage: "9" 12 +%%Page: "10" 12 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 10 of 11) 473.71 34.7 T +72 72 540 720 R +7 X +V +0 X +0.94 (Unlike Sun\325) 108 712 P +0.94 (s implementation, unused bytes of that last block are not \336lled with random) 166.58 712 P +0.57 (data, but instead contain what was in those byte positions in the preceding block. This is) 108 698 P +(quicker and more portable, and does not weaken the encryption signi\336cantly) 108 684 T +(.) 473.95 684 T +0.36 (If the key is entered in ) 108 666 P +5 F +0.3 (ASCII) 220.76 666 P +0 F +0.36 (, the parity bits of the key characters are set so that each key) 246.85 666 P +1.03 (character is of odd parity) 108 652 P +1.03 (. Unlike Sun\325) 231.23 652 P +1.03 (s implementation, it is possible to enter binary or) 296.92 652 P +-0.57 (hexadecimal keys on the command line, and if this is done, the parity bits are ) 108 638 P +3 F +-0.57 (not ) 472.85 638 P +0 F +-0.57 (reset. This) 490.61 638 P +(allows testing using arbitrary bit patterns as keys.) 108 624 T +0.64 (The Sun implementation always uses an initialization vector of 0 \050that is, all zeroes\051. By) 108 606 P +(default, ) 108 592 T +3 F +(bdes ) 147.3 592 T +0 F +(does too, but this may be changed from the command line.) 172.29 592 T +4 F +(FILES) 72 566 T +0 F +(/dev/tty) 108 542 T +(controlling terminal for typed key) 180 542 T +4 F +(SEE ALSO) 72 516 T +3 F +(crypt) 108 492 T +0 F +(\0501\051, ) 132.65 492 T +3 F +(crypt) 152.63 492 T +0 F +(\0503\051) 177.27 492 T +3 F +-0.4 (Data Encryption Standar) 108 474 P +-0.4 (d) 228.02 474 P +0 F +-0.4 (, Federal Information Processing Standard #46, National Bureau) 234.02 474 P +(of Standards, U.S. Department of Commerce, W) 108 460 T +(ashington DC \050Jan. 1977\051.) 340.2 460 T +3 F +0.16 (DES) 108 442 P +0 F +0.16 ( ) 129.98 442 P +3 F +0.16 (Modes of Operation, ) 133.15 442 P +0 F +0.16 (Federal Information Processing Standard #81, National Bureau) 236.24 442 P +(of Standards, U.S. Department of Commerce, W) 108 428 T +(ashington DC \050Dec. 1980\051.) 340.2 428 T +2.75 (Dorothy Denning, ) 108 410 P +3 F +2.75 (Cryptography and Data Security) 203.77 410 P +0 F +2.75 (, Addison-W) 368.8 410 P +2.75 (esley Publishing Co.,) 432.55 410 P +(Reading, MA \2511982.) 108 396 T +-0.19 ( Matt Bishop, \322Implementation Notes on ) 108 378 P +3 F +-0.19 (bdes) 305.76 378 P +0 F +-0.19 (\0501\051\323, T) 327.75 378 P +-0.19 (echnical Report PCS-TR-91-158, De-) 359.35 378 P +0.34 (partment of Mathematics and Computer Science, Dartmouth College, Hanover) 108 364 P +0.34 (, NH \050Apr) 488.01 364 P +0.34 (.) 537 364 P +(1991\051.) 108 350 T +4 F +(CAUTION) 72 324 T +0 F +-0.55 (Certain speci\336c keys should be avoided because they introduce potential weaknesses; these) 108 300 P +-0.44 (keys, called the ) 108 286 P +3 F +-0.44 (weak) 183.95 286 P +0 F +-0.44 ( and ) 208.6 286 P +3 F +-0.44 (semiweak) 231.03 286 P +0 F +-0.44 ( keys, are \050in hex notation, where ) 277.66 286 P +6 F +-1.06 (p) 437.45 286 P +0 F +-0.44 ( is either ) 444.64 286 P +6 F +-1.06 (0) 487.63 286 P +0 F +-0.44 ( or ) 494.82 286 P +6 F +-1.06 (1) 509.93 286 P +0 F +-0.44 (, and) 517.12 286 P +6 F +(P) 108 272 T +0 F +( is either ) 115.2 272 T +6 F +(e) 159.5 272 T +0 F +( or ) 166.7 272 T +6 F +(f) 182.68 272 T +0 F +(\051:) 189.88 272 T +6 F +(0x0p0p0p0p0p0p0p0p) 144 254 T +(0x0p1P0p1P0p0P0p0P) 360 254 T +(0x0pep0pep0pfp0pfp) 144 236 T +(0x0pfP0pfP0pfP0pfP) 360 236 T +(0x1P0p1P0p0P0p0P0p) 144 218 T +(0x1P1P1P1P0P0P0P0P) 360 218 T +(0x1Pep1Pep0Pfp0Pfp) 144 200 T +(0x1PfP1PfP0PfP0PfP) 360 200 T +(0xep0pep0pfp0pfp0p) 144 182 T +(0xep1Pep1pfp0Pfp0P) 360 182 T +(0xepepepepepepepep) 144 164 T +(0xepfPepfPfpfPfpfP) 360 164 T +(0xfP0pfP0pfP0pfP0p) 144 146 T +(0xfP1PfP1PfP0PfP0P) 360 146 T +(0xfPepfPepfPepfPep) 144 128 T +(0xfPfPfPfPfPfPfPfP) 360 128 T +0 F +0.13 (The weakness of these keys is inherent in the DES algorithm \050see for example Moore and) 108 110 P +-0.57 (Simmons, \322Cycle structure of the DES with weak and semi-weak keys,\323) 108 96 P +3 F +-0.57 ( Advances in Cryp-) 449.43 96 P +(tology \320 Crypto \32486 Pr) 108 82 T +(oceedings) 216.83 82 T +0 F +(, Springer) 264.79 82 T +(-V) 311.85 82 T +(erlag New Y) 323.17 82 T +(ork, \2511987, pp. 9-32\051.) 383.25 82 T +FMENDPAGE +%%EndPage: "10" 13 +%%Page: "11" 13 +612 792 0 FMBEGINPAGE +72 745.99 540 756 R +7 X +0 K +V +72 32.69 540 42.7 R +V +0 F +0 X +(Page 11 of 11) 473.71 34.7 T +72 72 540 720 R +7 X +V +4 F +0 X +(BUGS) 72 712 T +0 F +-0.18 (There is a controversy raging over whether the DES will still be secure in a few years. The) 108 688 P +0.31 (advent of special-purpose hardware could reduce the cost of any of the methods of attack) 108 674 P +(named above so that they are no longer computationally infeasible.) 108 660 T +0.32 (Programs which display programs\325 ar) 108 642 P +0.32 (guments may compromise the key and initialization) 289.59 642 P +0.76 (vector if they are speci\336ed on the command line. T) 108 628 P +0.76 (o avoid this ) 358.46 628 P +3 F +0.76 (bdes) 419.7 628 P +0 F +0.76 ( overwrites its ar) 441.68 628 P +0.76 (gu-) 524.01 628 P +(ments. However) 108 614 T +(, the obvious race cannot currently be avoided.) 186.12 614 T +0.25 (As the key or key schedule is kept in memory throughout the run of this program, the en-) 108 596 P +(cryption can be compromised if memory is readable.) 108 582 T +-0.4 (There is no warranty of merchantability nor any warranty of \336tness for a particular purpose) 108 564 P +0.05 (nor any other warranty) 108 550 P +0.05 (, either express or implied, as to the accuracy of the enclosed mate-) 216.95 550 P +(rials or as to their suitability for any particular purpose.) 108 536 T +-0.06 (Accordingly) 108 518 P +-0.06 (, the user assumes full responsibility for their use. Further) 167.18 518 P +-0.06 (, the author assumes) 442.93 518 P +-0.25 (no obligation to furnish any assistance of any kind whatsoever) 108 504 P +-0.25 (, or to furnish any additional) 404.69 504 P +(information or documentation.) 108 490 T +4 F +(AUTHOR) 72 464 T +0 F +-0.54 (Matt Bishop, Department of Mathematics and Computer Science, Bradley Hall, Dartmouth) 108 440 P +(College, Hanover) 108 426 T +(, NH 03755) 192.12 426 T +(Electronic mail addresses:) 108 408 T +(Internet: Matt.Bishop@dartmouth.edu) 108 390 T +(UUCP: decvax!dartvax!Matt.Bishop) 108 372 T +FMENDPAGE +%%EndPage: "11" 14 +%%Trailer +%%BoundingBox: 0 0 612 792 +%%Pages: 13 1 +%%DocumentFonts: Helvetica-Bold +%%+ Helvetica-BoldOblique +%%+ Times-Roman +%%+ Times-Bold +%%+ Times-BoldItalic +%%+ Times-Italic +%%+ Courier +%%+ Courier-Oblique +%%+ ZapfDingbats +%%+ Symbol +%%+ Courier-Bold diff --git a/secure/usr.bin/telnet/Makefile b/secure/usr.bin/telnet/Makefile new file mode 100644 index 0000000..1c8bd26 --- /dev/null +++ b/secure/usr.bin/telnet/Makefile @@ -0,0 +1,73 @@ +# +# 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 +# + +PROG= telnet + +CFLAGS+=-DTERMCAP -DKLUDGELINEMODE -DUSE_TERMIO #-DAUTHENTICATION -DENCRYPTION +CFLAGS+=-DENV_HACK +CFLAGS+=-I${.CURDIR}/../../lib + +#CFLAGS+= -DKRB4 + +LDADD= -ltermcap -ltelnet +#LDADD+= -lkrb -ldes +DPADD= ${LIBTERMCAP} + +SRCS= authenc.c commands.c main.c network.c ring.c sys_bsd.c telnet.c \ + terminal.c tn3270.c utilities.c + +# These are the sources that have encryption stuff in them. +CRYPT_SRC= authenc.c commands.c externs.h main.c network.c +CRYPT_SRC+= ring.c ring.h telnet.c terminal.c utilities.c Makefile +NOCRYPT_DIR=${.CURDIR}/Nocrypt + +.include <bsd.prog.mk> + +nocrypt: +#ifdef ENCRYPTION + @for i in ${CRYPT_SRC}; do \ + if [ ! -d ${NOCRYPT_DIR} ]; then \ + echo Creating subdirectory ${NOCRYPT_DIR}; \ + mkdir ${NOCRYPT_DIR}; \ + fi; \ + echo ${NOCRYPT_DIR}/$$i; \ + unifdef -UENCRYPTION ${.CURDIR}/$$i | \ + sed "s/ || defined(ENCRYPTION)//" > ${NOCRYPT_DIR}/$$i; \ + done + +placeholder: +#else /* ENCRYPTION */ + @echo "Encryption code already removed." +#endif /* ENCRYPTION */ diff --git a/secure/usr.bin/telnet/README b/secure/usr.bin/telnet/README new file mode 100644 index 0000000..086c88f --- /dev/null +++ b/secure/usr.bin/telnet/README @@ -0,0 +1,566 @@ + + +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 new file mode 100644 index 0000000..545df78 --- /dev/null +++ b/secure/usr.bin/telnet/authenc.c @@ -0,0 +1,111 @@ +/*- + * 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 new file mode 100644 index 0000000..a7224d1 --- /dev/null +++ b/secure/usr.bin/telnet/commands.c @@ -0,0 +1,2933 @@ +/* + * 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 8.2 (Berkeley) 12/15/93"; +#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 *rindex(); + + shellp = getenv("SHELL"); + if (shellp == NULL) + shellp = "/bin/sh"; + if ((shellname = rindex(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 *index(); + + for (epp = environ; *epp; epp++) { + if (cp = index(*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 = index((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((int)), + auth_disable P((int)), + 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; + + 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 encryptiong 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; + + 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 */ + bzero((char *)&sin, 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 (isprefix(*argv, "help") || 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 */ + memcpy((caddr_t)&sin.sin_addr, + host->h_addr_list[0], host->h_length); +#else /* defined(h_addr) */ + memcpy((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++; + memcpy((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) + memcpy((caddr_t)&sin_addr, + host->h_addr_list[0], host->h_length); +#else + memcpy((caddr_t)&sin_addr, host->h_addr, host->h_length); +#endif + } else { + *cpp = cp; + return(0); + } + memcpy(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 new file mode 100644 index 0000000..0978173 --- /dev/null +++ b/secure/usr.bin/telnet/defines.h @@ -0,0 +1,61 @@ +/* + * 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 new file mode 100644 index 0000000..b721992 --- /dev/null +++ b/secure/usr.bin/telnet/externs.h @@ -0,0 +1,481 @@ +/* + * 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 8.2 (Berkeley) 12/15/93 + */ + +#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> +#endif +#include <strings.h> + +#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 new file mode 100644 index 0000000..045bb72 --- /dev/null +++ b/secure/usr.bin/telnet/fdset.h @@ -0,0 +1,49 @@ +/* + * 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 new file mode 100644 index 0000000..4efa951 --- /dev/null +++ b/secure/usr.bin/telnet/general.h @@ -0,0 +1,45 @@ +/* + * 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/krb4-proto.h b/secure/usr.bin/telnet/krb4-proto.h new file mode 100644 index 0000000..75f6d41 --- /dev/null +++ b/secure/usr.bin/telnet/krb4-proto.h @@ -0,0 +1,207 @@ +#ifdef __STDC__ +# define P(s) s +#else +# define P(s) () +#endif + +/* add_ticket.c */ +int add_ticket P((KTEXT , int , char *, int , char *, char *, char *, int , KTEXT )); + +/* cr_err_reply.c */ +void cr_err_reply P((KTEXT , char *, char *, char *, u_long , u_long , char *)); + +/* create_auth_reply.c */ +KTEXT create_auth_reply P((char *, char *, char *, long , int , unsigned long , int , KTEXT )); + +/* create_ciph.c */ +int create_ciph P((KTEXT , C_Block , char *, char *, char *, unsigned long , int , KTEXT , unsigned long , C_Block )); + +/* create_death_packet.c */ +KTEXT krb_create_death_packet P((char *)); + +/* create_ticket.c */ +int krb_create_ticket P((KTEXT , unsigned int , char *, char *, char *, long , char *, int , long , char *, char *, C_Block )); + +/* debug_decl.c */ + +/* decomp_ticket.c */ +int decomp_ticket P((KTEXT , unsigned char *, char *, char *, char *, unsigned long *, C_Block , int *, unsigned long *, char *, char *, C_Block , Key_schedule )); + +/* dest_tkt.c */ +int dest_tkt P((void )); + +/* extract_ticket.c */ +int extract_ticket P((KTEXT , int , char *, int *, int *, char *, KTEXT )); + +/* fgetst.c */ +int fgetst P((FILE *, char *, int )); + +/* get_ad_tkt.c */ +int get_ad_tkt P((char *, char *, char *, int )); + +/* get_admhst.c */ +int krb_get_admhst P((char *, char *, int )); + +/* get_cred.c */ +int krb_get_cred P((char *, char *, char *, CREDENTIALS *)); + +/* get_in_tkt.c */ +int krb_get_pw_in_tkt P((char *, char *, char *, char *, char *, int , char *)); +int placebo_read_password P((des_cblock *, char *, int )); +int placebo_read_pw_string P((char *, int , char *, int )); + +/* get_krbhst.c */ +int krb_get_krbhst P((char *, char *, int )); + +/* get_krbrlm.c */ +int krb_get_lrealm P((char *, int )); + +/* get_phost.c */ +char *krb_get_phost P((char *)); + +/* get_pw_tkt.c */ +int get_pw_tkt P((char *, char *, char *, char *)); + +/* get_request.c */ +int get_request P((KTEXT , int , char **, char **)); + +/* get_svc_in_tkt.c */ +int krb_get_svc_in_tkt P((char *, char *, char *, char *, char *, int , char *)); + +/* get_tf_fullname.c */ +int krb_get_tf_fullname P((char *, char *, char *, char *)); + +/* get_tf_realm.c */ +int krb_get_tf_realm P((char *, char *)); + +/* getopt.c */ +int getopt P((int , char **, char *)); + +/* getrealm.c */ +char *krb_realmofhost P((char *)); + +/* getst.c */ +int getst P((int , char *, int )); + +/* in_tkt.c */ +int in_tkt P((char *, char *)); + +/* k_gethostname.c */ +int k_gethostname P((char *, int )); + +/* klog.c */ +char *klog P((int , char *, int , int , int , int , int , int , int , int , int , int )); +int kset_logfile P((char *)); + +/* kname_parse.c */ +int kname_parse P((char *, char *, char *, char *)); +int k_isname P((char *)); +int k_isinst P((char *)); +int k_isrealm P((char *)); + +/* kntoln.c */ +int krb_kntoln P((AUTH_DAT *, char *)); + +/* krb_err_txt.c */ + +/* krb_get_in_tkt.c */ +int krb_get_in_tkt P((char *, char *, char *, char *, char *, int , int (*key_proc )(), int (*decrypt_proc )(), char *)); + +/* kuserok.c */ +int kuserok P((AUTH_DAT *, char *)); + +/* log.c */ +void log P((char *, int , int , int , int , int , int , int , int , int , int )); +int set_logfile P((char *)); +int new_log P((long , char *)); + +/* mk_err.c */ +long krb_mk_err P((u_char *, long , char *)); + +/* mk_priv.c */ +long krb_mk_priv P((u_char *, u_char *, u_long , Key_schedule , C_Block , struct sockaddr_in *, struct sockaddr_in *)); + +/* mk_req.c */ +int krb_mk_req P((KTEXT , char *, char *, char *, long )); +int krb_set_lifetime P((int )); + +/* mk_safe.c */ +long krb_mk_safe P((u_char *, u_char *, u_long , C_Block *, struct sockaddr_in *, struct sockaddr_in *)); + +/* month_sname.c */ +char *month_sname P((int )); + +/* netread.c */ +int krb_net_read P((int , char *, int )); + +/* netwrite.c */ +int krb_net_write P((int , char *, int )); + +/* one.c */ + +/* pkt_cipher.c */ +KTEXT pkt_cipher P((KTEXT )); + +/* pkt_clen.c */ +int pkt_clen P((KTEXT )); + +/* rd_err.c */ +int krb_rd_err P((u_char *, u_long , long *, MSG_DAT *)); + +/* rd_priv.c */ +long krb_rd_priv P((u_char *, u_long , Key_schedule , C_Block , struct sockaddr_in *, struct sockaddr_in *, MSG_DAT *)); + +/* rd_req.c */ +int krb_set_key P((char *, int )); +int krb_rd_req P((KTEXT , char *, char *, long , AUTH_DAT *, char *)); + +/* rd_safe.c */ +long krb_rd_safe P((u_char *, u_long , C_Block *, struct sockaddr_in *, struct sockaddr_in *, MSG_DAT *)); + +/* read_service_key.c */ +int read_service_key P((char *, char *, char *, int , char *, char *)); + +/* recvauth.c */ +int krb_recvauth P((long , int , KTEXT , char *, char *, struct sockaddr_in *, struct sockaddr_in *, AUTH_DAT *, char *, Key_schedule , char *)); + +/* save_credentials.c */ +int save_credentials P((char *, char *, char *, C_Block , int , int , KTEXT , long )); + +/* send_to_kdc.c */ +int send_to_kdc P((KTEXT , KTEXT , char *)); + +/* sendauth.c */ +int krb_sendauth P((long , int , KTEXT , char *, char *, char *, u_long , MSG_DAT *, CREDENTIALS *, Key_schedule , struct sockaddr_in *, struct sockaddr_in *, char *)); +int krb_sendsvc P((int , char *)); + +/* setenv.c */ +int setenv P((char *, char *, int )); +void unsetenv P((char *)); +char *getenv P((char *)); +char *_findenv P((char *, int *)); + +/* stime.c */ +char *stime P((long *)); + +/* tf_shm.c */ +int krb_shm_create P((char *)); +int krb_is_diskless P((void )); +int krb_shm_dest P((char *)); + +/* tf_util.c */ +int tf_init P((char *, int )); +int tf_get_pname P((char *)); +int tf_get_pinst P((char *)); +int tf_get_cred P((CREDENTIALS *)); +int tf_close P((void )); +int tf_save_cred P((char *, char *, char *, C_Block , int , int , KTEXT , long )); + +/* tkt_string.c */ +char *tkt_string P((void )); +void krb_set_tkt_string P((char *)); + +/* util.c */ +int ad_print P((AUTH_DAT *)); +int placebo_cblock_print P((des_cblock )); + +#undef P diff --git a/secure/usr.bin/telnet/main.c b/secure/usr.bin/telnet/main.c new file mode 100644 index 0000000..ce22840 --- /dev/null +++ b/secure/usr.bin/telnet/main.c @@ -0,0 +1,322 @@ +/* + * 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 8.2 (Berkeley) 12/15/93"; +#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 new file mode 100644 index 0000000..0fe5cee --- /dev/null +++ b/secure/usr.bin/telnet/network.c @@ -0,0 +1,177 @@ +/* + * 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 new file mode 100644 index 0000000..1080d12 --- /dev/null +++ b/secure/usr.bin/telnet/ring.c @@ -0,0 +1,362 @@ +/* + * 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 8.1 (Berkeley) 6/6/93"; +#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)); + memcpy(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)); + memcpy(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 new file mode 100644 index 0000000..2a36781 --- /dev/null +++ b/secure/usr.bin/telnet/ring.h @@ -0,0 +1,105 @@ +/* + * 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 new file mode 100644 index 0000000..85414e2 --- /dev/null +++ b/secure/usr.bin/telnet/sys_bsd.c @@ -0,0 +1,1167 @@ +/* + * 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 8.2 (Berkeley) 12/15/93"; +#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 */ + memcpy(new_tc.c_cc, old_tc.c_cc, sizeof(old_tc.c_cc)); +# ifndef VDISCARD + termFlushChar = CONTROL('O'); +# endif +# ifndef VWERASE + termWerasChar = CONTROL('W'); +# endif +# ifndef VREPRINT + termRprntChar = CONTROL('R'); +# endif +# ifndef VLNEXT + termLiteralNextChar = CONTROL('V'); +# endif +# ifndef VSTART + termStartChar = CONTROL('Q'); +# endif +# ifndef VSTOP + termStopChar = CONTROL('S'); +# endif +# ifndef VSTATUS + termAytChar = CONTROL('T'); +# endif +#endif /* USE_TERMIO */ +} + +#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); + (void) sigsetmask(sigblock(0) & ~(1<<(SIGTSTP-1))); +#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) */ + +} + +#ifndef B19200 +# define B19200 B9600 +#endif + +#ifndef B38400 +# define B38400 B19200 +#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 }, { 9600, B9600 }, { 19200, B19200 }, + { 38400, B38400 }, { -1, B38400 } +}; + + void +TerminalSpeeds(ispeed, ospeed) + long *ispeed; + long *ospeed; +{ + register struct termspeeds *tp; + register long in, out; + + out = cfgetospeed(&old_tc); + in = cfgetispeed(&old_tc); + if (in == 0) + in = out; + + 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; +} + + 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 && + bcmp(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 == 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 new file mode 100644 index 0000000..27079d9 --- /dev/null +++ b/secure/usr.bin/telnet/telnet.1 @@ -0,0 +1,1360 @@ +.\" 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 8.5 (Berkeley) 3/1/94 +.\" +.Dd March 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. +.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. +.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. +.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. +.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. +.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 . +.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 new file mode 100644 index 0000000..97f63e6 --- /dev/null +++ b/secure/usr.bin/telnet/telnet.c @@ -0,0 +1,2650 @@ +/* + * 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 8.2 (Berkeley) 12/15/93"; +#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) ((x)&0x7f) + +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 (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 && (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; + memcpy(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 new file mode 100644 index 0000000..b6d3b86 --- /dev/null +++ b/secure/usr.bin/telnet/terminal.c @@ -0,0 +1,239 @@ +/* + * 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 8.1 (Berkeley) 6/6/93"; +#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); + 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 new file mode 100644 index 0000000..1f285cf --- /dev/null +++ b/secure/usr.bin/telnet/tn3270.c @@ -0,0 +1,411 @@ +/* + * 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 8.1 (Berkeley) 6/6/93"; +#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) { + memcpy(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 new file mode 100644 index 0000000..191d311 --- /dev/null +++ b/secure/usr.bin/telnet/types.h @@ -0,0 +1,52 @@ +/* + * 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 new file mode 100644 index 0000000..70cf567 --- /dev/null +++ b/secure/usr.bin/telnet/utilities.c @@ -0,0 +1,939 @@ +/* + * 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 8.2 (Berkeley) 12/15/93"; +#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); +} |
