| 1 | /* |
| 2 | * Copyright (c) 1988, 1990 Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by the University of |
| 16 | * California, Berkeley and its contributors. |
| 17 | * 4. Neither the name of the University nor the names of its contributors |
| 18 | * may be used to endorse or promote products derived from this software |
| 19 | * without specific prior written permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | * SUCH DAMAGE. |
| 32 | */ |
| 33 | |
| 34 | #ifndef lint |
| 35 | static char sccsid[] = "@(#)commands.c 5.5 (Berkeley) 3/22/91"; |
| 36 | #endif /* not lint */ |
| 37 | |
| 38 | #if defined(unix) |
| 39 | #include <sys/param.h> |
| 40 | #ifdef CRAY |
| 41 | #include <sys/types.h> |
| 42 | #endif |
| 43 | #include <sys/file.h> |
| 44 | #else |
| 45 | #include <sys/types.h> |
| 46 | #endif /* defined(unix) */ |
| 47 | #include <sys/socket.h> |
| 48 | #include <netinet/in.h> |
| 49 | #ifdef CRAY |
| 50 | #include <fcntl.h> |
| 51 | #endif /* CRAY */ |
| 52 | |
| 53 | #include <signal.h> |
| 54 | #include <netdb.h> |
| 55 | #include <ctype.h> |
| 56 | #include <pwd.h> |
| 57 | #include <varargs.h> |
| 58 | #include <errno.h> |
| 59 | |
| 60 | #include <arpa/telnet.h> |
| 61 | |
| 62 | #include "general.h" |
| 63 | |
| 64 | #include "ring.h" |
| 65 | |
| 66 | #include "externs.h" |
| 67 | #include "defines.h" |
| 68 | #include "types.h" |
| 69 | |
| 70 | #ifndef CRAY |
| 71 | #include <netinet/in_systm.h> |
| 72 | # if (defined(vax) || defined(tahoe) || defined(hp300)) && !defined(ultrix) |
| 73 | # include <machine/endian.h> |
| 74 | # endif /* vax */ |
| 75 | #endif /* CRAY */ |
| 76 | #include <netinet/ip.h> |
| 77 | |
| 78 | |
| 79 | #ifndef MAXHOSTNAMELEN |
| 80 | #define MAXHOSTNAMELEN 64 |
| 81 | #endif MAXHOSTNAMELEN |
| 82 | |
| 83 | #if defined(IPPROTO_IP) && defined(IP_TOS) |
| 84 | int tos = -1; |
| 85 | #endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ |
| 86 | |
| 87 | char *hostname; |
| 88 | static char _hostname[MAXHOSTNAMELEN]; |
| 89 | |
| 90 | extern char *getenv(); |
| 91 | |
| 92 | extern int isprefix(); |
| 93 | extern char **genget(); |
| 94 | extern int Ambiguous(); |
| 95 | |
| 96 | static call(); |
| 97 | |
| 98 | typedef struct { |
| 99 | char *name; /* command name */ |
| 100 | char *help; /* help string (NULL for no help) */ |
| 101 | int (*handler)(); /* routine which executes command */ |
| 102 | int needconnect; /* Do we need to be connected to execute? */ |
| 103 | } Command; |
| 104 | |
| 105 | static char line[256]; |
| 106 | static char saveline[256]; |
| 107 | static int margc; |
| 108 | static char *margv[20]; |
| 109 | |
| 110 | static void |
| 111 | makeargv() |
| 112 | { |
| 113 | register char *cp, *cp2, c; |
| 114 | register char **argp = margv; |
| 115 | |
| 116 | margc = 0; |
| 117 | cp = line; |
| 118 | if (*cp == '!') { /* Special case shell escape */ |
| 119 | strcpy(saveline, line); /* save for shell command */ |
| 120 | *argp++ = "!"; /* No room in string to get this */ |
| 121 | margc++; |
| 122 | cp++; |
| 123 | } |
| 124 | while (c = *cp) { |
| 125 | register int inquote = 0; |
| 126 | while (isspace(c)) |
| 127 | c = *++cp; |
| 128 | if (c == '\0') |
| 129 | break; |
| 130 | *argp++ = cp; |
| 131 | margc += 1; |
| 132 | for (cp2 = cp; c != '\0'; c = *++cp) { |
| 133 | if (inquote) { |
| 134 | if (c == inquote) { |
| 135 | inquote = 0; |
| 136 | continue; |
| 137 | } |
| 138 | } else { |
| 139 | if (c == '\\') { |
| 140 | if ((c = *++cp) == '\0') |
| 141 | break; |
| 142 | } else if (c == '"') { |
| 143 | inquote = '"'; |
| 144 | continue; |
| 145 | } else if (c == '\'') { |
| 146 | inquote = '\''; |
| 147 | continue; |
| 148 | } else if (isspace(c)) |
| 149 | break; |
| 150 | } |
| 151 | *cp2++ = c; |
| 152 | } |
| 153 | *cp2 = '\0'; |
| 154 | if (c == '\0') |
| 155 | break; |
| 156 | cp++; |
| 157 | } |
| 158 | *argp++ = 0; |
| 159 | } |
| 160 | |
| 161 | /* |
| 162 | * Make a character string into a number. |
| 163 | * |
| 164 | * Todo: 1. Could take random integers (12, 0x12, 012, 0b1). |
| 165 | */ |
| 166 | |
| 167 | static |
| 168 | special(s) |
| 169 | register char *s; |
| 170 | { |
| 171 | register char c; |
| 172 | char b; |
| 173 | |
| 174 | switch (*s) { |
| 175 | case '^': |
| 176 | b = *++s; |
| 177 | if (b == '?') { |
| 178 | c = b | 0x40; /* DEL */ |
| 179 | } else { |
| 180 | c = b & 0x1f; |
| 181 | } |
| 182 | break; |
| 183 | default: |
| 184 | c = *s; |
| 185 | break; |
| 186 | } |
| 187 | return c; |
| 188 | } |
| 189 | |
| 190 | /* |
| 191 | * Construct a control character sequence |
| 192 | * for a special character. |
| 193 | */ |
| 194 | static char * |
| 195 | control(c) |
| 196 | register cc_t c; |
| 197 | { |
| 198 | static char buf[5]; |
| 199 | /* |
| 200 | * The only way I could get the Sun 3.5 compiler |
| 201 | * to shut up about |
| 202 | * if ((unsigned int)c >= 0x80) |
| 203 | * was to assign "c" to an unsigned int variable... |
| 204 | * Arggg.... |
| 205 | */ |
| 206 | register unsigned int uic = (unsigned int)c; |
| 207 | |
| 208 | if (uic == 0x7f) |
| 209 | return ("^?"); |
| 210 | if (c == (cc_t)_POSIX_VDISABLE) { |
| 211 | return "off"; |
| 212 | } |
| 213 | if (uic >= 0x80) { |
| 214 | buf[0] = '\\'; |
| 215 | buf[1] = ((c>>6)&07) + '0'; |
| 216 | buf[2] = ((c>>3)&07) + '0'; |
| 217 | buf[3] = (c&07) + '0'; |
| 218 | buf[4] = 0; |
| 219 | } else if (uic >= 0x20) { |
| 220 | buf[0] = c; |
| 221 | buf[1] = 0; |
| 222 | } else { |
| 223 | buf[0] = '^'; |
| 224 | buf[1] = '@'+c; |
| 225 | buf[2] = 0; |
| 226 | } |
| 227 | return (buf); |
| 228 | } |
| 229 | |
| 230 | |
| 231 | |
| 232 | /* |
| 233 | * The following are data structures and routines for |
| 234 | * the "send" command. |
| 235 | * |
| 236 | */ |
| 237 | |
| 238 | struct sendlist { |
| 239 | char *name; /* How user refers to it (case independent) */ |
| 240 | char *help; /* Help information (0 ==> no help) */ |
| 241 | int needconnect; /* Need to be connected */ |
| 242 | int narg; /* Number of arguments */ |
| 243 | int (*handler)(); /* Routine to perform (for special ops) */ |
| 244 | int nbyte; /* Number of bytes to send this command */ |
| 245 | int what; /* Character to be sent (<0 ==> special) */ |
| 246 | }; |
| 247 | \f |
| 248 | |
| 249 | extern int |
| 250 | send_esc P((void)), |
| 251 | send_help P((void)), |
| 252 | send_docmd P((char *)), |
| 253 | send_dontcmd P((char *)), |
| 254 | send_willcmd P((char *)), |
| 255 | send_wontcmd P((char *)); |
| 256 | |
| 257 | static struct sendlist Sendlist[] = { |
| 258 | { "ao", "Send Telnet Abort output", 1, 0, 0, 2, AO }, |
| 259 | { "ayt", "Send Telnet 'Are You There'", 1, 0, 0, 2, AYT }, |
| 260 | { "brk", "Send Telnet Break", 1, 0, 0, 2, BREAK }, |
| 261 | { "break", 0, 1, 0, 0, 2, BREAK }, |
| 262 | { "ec", "Send Telnet Erase Character", 1, 0, 0, 2, EC }, |
| 263 | { "el", "Send Telnet Erase Line", 1, 0, 0, 2, EL }, |
| 264 | { "escape", "Send current escape character", 1, 0, send_esc, 1, 0 }, |
| 265 | { "ga", "Send Telnet 'Go Ahead' sequence", 1, 0, 0, 2, GA }, |
| 266 | { "ip", "Send Telnet Interrupt Process", 1, 0, 0, 2, IP }, |
| 267 | { "intp", 0, 1, 0, 0, 2, IP }, |
| 268 | { "interrupt", 0, 1, 0, 0, 2, IP }, |
| 269 | { "intr", 0, 1, 0, 0, 2, IP }, |
| 270 | { "nop", "Send Telnet 'No operation'", 1, 0, 0, 2, NOP }, |
| 271 | { "eor", "Send Telnet 'End of Record'", 1, 0, 0, 2, EOR }, |
| 272 | { "abort", "Send Telnet 'Abort Process'", 1, 0, 0, 2, ABORT }, |
| 273 | { "susp", "Send Telnet 'Suspend Process'", 1, 0, 0, 2, SUSP }, |
| 274 | { "eof", "Send Telnet End of File Character", 1, 0, 0, 2, xEOF }, |
| 275 | { "synch", "Perform Telnet 'Synch operation'", 1, 0, dosynch, 2, 0 }, |
| 276 | { "getstatus", "Send request for STATUS", 1, 0, get_status, 6, 0 }, |
| 277 | { "?", "Display send options", 0, 0, send_help, 0, 0 }, |
| 278 | { "help", 0, 0, 0, send_help, 0, 0 }, |
| 279 | { "do", 0, 0, 1, send_docmd, 3, 0 }, |
| 280 | { "dont", 0, 0, 1, send_dontcmd, 3, 0 }, |
| 281 | { "will", 0, 0, 1, send_willcmd, 3, 0 }, |
| 282 | { "wont", 0, 0, 1, send_wontcmd, 3, 0 }, |
| 283 | { 0 } |
| 284 | }; |
| 285 | |
| 286 | #define GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \ |
| 287 | sizeof(struct sendlist))) |
| 288 | |
| 289 | static int |
| 290 | sendcmd(argc, argv) |
| 291 | int argc; |
| 292 | char **argv; |
| 293 | { |
| 294 | int what; /* what we are sending this time */ |
| 295 | int count; /* how many bytes we are going to need to send */ |
| 296 | int i; |
| 297 | int question = 0; /* was at least one argument a question */ |
| 298 | struct sendlist *s; /* pointer to current command */ |
| 299 | int success = 0; |
| 300 | int needconnect = 0; |
| 301 | |
| 302 | if (argc < 2) { |
| 303 | printf("need at least one argument for 'send' command\n"); |
| 304 | printf("'send ?' for help\n"); |
| 305 | return 0; |
| 306 | } |
| 307 | /* |
| 308 | * First, validate all the send arguments. |
| 309 | * In addition, we see how much space we are going to need, and |
| 310 | * whether or not we will be doing a "SYNCH" operation (which |
| 311 | * flushes the network queue). |
| 312 | */ |
| 313 | count = 0; |
| 314 | for (i = 1; i < argc; i++) { |
| 315 | s = GETSEND(argv[i]); |
| 316 | if (s == 0) { |
| 317 | printf("Unknown send argument '%s'\n'send ?' for help.\n", |
| 318 | argv[i]); |
| 319 | return 0; |
| 320 | } else if (Ambiguous(s)) { |
| 321 | printf("Ambiguous send argument '%s'\n'send ?' for help.\n", |
| 322 | argv[i]); |
| 323 | return 0; |
| 324 | } |
| 325 | if (i + s->narg >= argc) { |
| 326 | fprintf(stderr, |
| 327 | "Need %d argument%s to 'send %s' command. 'send %s ?' for help.\n", |
| 328 | s->narg, s->narg == 1 ? "" : "s", s->name, s->name); |
| 329 | return 0; |
| 330 | } |
| 331 | count += s->nbyte; |
| 332 | if (s->handler == send_help) { |
| 333 | send_help(); |
| 334 | return 0; |
| 335 | } |
| 336 | |
| 337 | i += s->narg; |
| 338 | needconnect += s->needconnect; |
| 339 | } |
| 340 | if (!connected && needconnect) { |
| 341 | printf("?Need to be connected first.\n"); |
| 342 | printf("'send ?' for help\n"); |
| 343 | return 0; |
| 344 | } |
| 345 | /* Now, do we have enough room? */ |
| 346 | if (NETROOM() < count) { |
| 347 | printf("There is not enough room in the buffer TO the network\n"); |
| 348 | printf("to process your request. Nothing will be done.\n"); |
| 349 | printf("('send synch' will throw away most data in the network\n"); |
| 350 | printf("buffer, if this might help.)\n"); |
| 351 | return 0; |
| 352 | } |
| 353 | /* OK, they are all OK, now go through again and actually send */ |
| 354 | count = 0; |
| 355 | for (i = 1; i < argc; i++) { |
| 356 | if ((s = GETSEND(argv[i])) == 0) { |
| 357 | fprintf(stderr, "Telnet 'send' error - argument disappeared!\n"); |
| 358 | (void) quit(); |
| 359 | /*NOTREACHED*/ |
| 360 | } |
| 361 | if (s->handler) { |
| 362 | count++; |
| 363 | success += (*s->handler)((s->narg > 0) ? argv[i+1] : 0, |
| 364 | (s->narg > 1) ? argv[i+2] : 0); |
| 365 | i += s->narg; |
| 366 | } else { |
| 367 | NET2ADD(IAC, what); |
| 368 | printoption("SENT", IAC, what); |
| 369 | } |
| 370 | } |
| 371 | return (count == success); |
| 372 | } |
| 373 | |
| 374 | static int |
| 375 | send_esc() |
| 376 | { |
| 377 | NETADD(escape); |
| 378 | return 1; |
| 379 | } |
| 380 | |
| 381 | static int |
| 382 | send_docmd(name) |
| 383 | char *name; |
| 384 | { |
| 385 | void send_do(); |
| 386 | return(send_tncmd(send_do, "do", name)); |
| 387 | } |
| 388 | |
| 389 | static int |
| 390 | send_dontcmd(name) |
| 391 | char *name; |
| 392 | { |
| 393 | void send_dont(); |
| 394 | return(send_tncmd(send_dont, "dont", name)); |
| 395 | } |
| 396 | static int |
| 397 | send_willcmd(name) |
| 398 | char *name; |
| 399 | { |
| 400 | void send_will(); |
| 401 | return(send_tncmd(send_will, "will", name)); |
| 402 | } |
| 403 | static int |
| 404 | send_wontcmd(name) |
| 405 | char *name; |
| 406 | { |
| 407 | void send_wont(); |
| 408 | return(send_tncmd(send_wont, "wont", name)); |
| 409 | } |
| 410 | |
| 411 | int |
| 412 | send_tncmd(func, cmd, name) |
| 413 | void (*func)(); |
| 414 | char *cmd, *name; |
| 415 | { |
| 416 | char **cpp; |
| 417 | extern char *telopts[]; |
| 418 | |
| 419 | if (isprefix(name, "help") || isprefix(name, "?")) { |
| 420 | register int col, len; |
| 421 | |
| 422 | printf("Usage: send %s <option>\n", cmd); |
| 423 | printf("Valid options are:\n\t"); |
| 424 | |
| 425 | col = 8; |
| 426 | for (cpp = telopts; *cpp; cpp++) { |
| 427 | len = strlen(*cpp) + 1; |
| 428 | if (col + len > 65) { |
| 429 | printf("\n\t"); |
| 430 | col = 8; |
| 431 | } |
| 432 | printf(" %s", *cpp); |
| 433 | col += len; |
| 434 | } |
| 435 | printf("\n"); |
| 436 | return 0; |
| 437 | } |
| 438 | cpp = (char **)genget(name, telopts, sizeof(char *)); |
| 439 | if (Ambiguous(cpp)) { |
| 440 | fprintf(stderr,"'%s': ambiguous argument ('send %s ?' for help).\n", |
| 441 | name, cmd); |
| 442 | return 0; |
| 443 | } |
| 444 | if (cpp == 0) { |
| 445 | fprintf(stderr, "'%s': unknown argument ('send %s ?' for help).\n", |
| 446 | name, cmd); |
| 447 | return 0; |
| 448 | } |
| 449 | if (!connected) { |
| 450 | printf("?Need to be connected first.\n"); |
| 451 | return 0; |
| 452 | } |
| 453 | (*func)(cpp - telopts, 1); |
| 454 | return 1; |
| 455 | } |
| 456 | |
| 457 | static int |
| 458 | send_help() |
| 459 | { |
| 460 | struct sendlist *s; /* pointer to current command */ |
| 461 | for (s = Sendlist; s->name; s++) { |
| 462 | if (s->help) |
| 463 | printf("%-15s %s\n", s->name, s->help); |
| 464 | } |
| 465 | return(0); |
| 466 | } |
| 467 | \f |
| 468 | /* |
| 469 | * The following are the routines and data structures referred |
| 470 | * to by the arguments to the "toggle" command. |
| 471 | */ |
| 472 | |
| 473 | static int |
| 474 | lclchars() |
| 475 | { |
| 476 | donelclchars = 1; |
| 477 | return 1; |
| 478 | } |
| 479 | |
| 480 | static int |
| 481 | togdebug() |
| 482 | { |
| 483 | #ifndef NOT43 |
| 484 | if (net > 0 && |
| 485 | (SetSockOpt(net, SOL_SOCKET, SO_DEBUG, debug)) < 0) { |
| 486 | perror("setsockopt (SO_DEBUG)"); |
| 487 | } |
| 488 | #else /* NOT43 */ |
| 489 | if (debug) { |
| 490 | if (net > 0 && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 0, 0) < 0) |
| 491 | perror("setsockopt (SO_DEBUG)"); |
| 492 | } else |
| 493 | printf("Cannot turn off socket debugging\n"); |
| 494 | #endif /* NOT43 */ |
| 495 | return 1; |
| 496 | } |
| 497 | |
| 498 | |
| 499 | static int |
| 500 | togcrlf() |
| 501 | { |
| 502 | if (crlf) { |
| 503 | printf("Will send carriage returns as telnet <CR><LF>.\n"); |
| 504 | } else { |
| 505 | printf("Will send carriage returns as telnet <CR><NUL>.\n"); |
| 506 | } |
| 507 | return 1; |
| 508 | } |
| 509 | |
| 510 | int binmode; |
| 511 | |
| 512 | static int |
| 513 | togbinary(val) |
| 514 | int val; |
| 515 | { |
| 516 | donebinarytoggle = 1; |
| 517 | |
| 518 | if (val >= 0) { |
| 519 | binmode = val; |
| 520 | } else { |
| 521 | if (my_want_state_is_will(TELOPT_BINARY) && |
| 522 | my_want_state_is_do(TELOPT_BINARY)) { |
| 523 | binmode = 1; |
| 524 | } else if (my_want_state_is_wont(TELOPT_BINARY) && |
| 525 | my_want_state_is_dont(TELOPT_BINARY)) { |
| 526 | binmode = 0; |
| 527 | } |
| 528 | val = binmode ? 0 : 1; |
| 529 | } |
| 530 | |
| 531 | if (val == 1) { |
| 532 | if (my_want_state_is_will(TELOPT_BINARY) && |
| 533 | my_want_state_is_do(TELOPT_BINARY)) { |
| 534 | printf("Already operating in binary mode with remote host.\n"); |
| 535 | } else { |
| 536 | printf("Negotiating binary mode with remote host.\n"); |
| 537 | tel_enter_binary(3); |
| 538 | } |
| 539 | } else { |
| 540 | if (my_want_state_is_wont(TELOPT_BINARY) && |
| 541 | my_want_state_is_dont(TELOPT_BINARY)) { |
| 542 | printf("Already in network ascii mode with remote host.\n"); |
| 543 | } else { |
| 544 | printf("Negotiating network ascii mode with remote host.\n"); |
| 545 | tel_leave_binary(3); |
| 546 | } |
| 547 | } |
| 548 | return 1; |
| 549 | } |
| 550 | |
| 551 | static int |
| 552 | togrbinary(val) |
| 553 | int val; |
| 554 | { |
| 555 | donebinarytoggle = 1; |
| 556 | |
| 557 | if (val == -1) |
| 558 | val = my_want_state_is_do(TELOPT_BINARY) ? 0 : 1; |
| 559 | |
| 560 | if (val == 1) { |
| 561 | if (my_want_state_is_do(TELOPT_BINARY)) { |
| 562 | printf("Already receiving in binary mode.\n"); |
| 563 | } else { |
| 564 | printf("Negotiating binary mode on input.\n"); |
| 565 | tel_enter_binary(1); |
| 566 | } |
| 567 | } else { |
| 568 | if (my_want_state_is_dont(TELOPT_BINARY)) { |
| 569 | printf("Already receiving in network ascii mode.\n"); |
| 570 | } else { |
| 571 | printf("Negotiating network ascii mode on input.\n"); |
| 572 | tel_leave_binary(1); |
| 573 | } |
| 574 | } |
| 575 | return 1; |
| 576 | } |
| 577 | |
| 578 | static int |
| 579 | togxbinary(val) |
| 580 | int val; |
| 581 | { |
| 582 | donebinarytoggle = 1; |
| 583 | |
| 584 | if (val == -1) |
| 585 | val = my_want_state_is_will(TELOPT_BINARY) ? 0 : 1; |
| 586 | |
| 587 | if (val == 1) { |
| 588 | if (my_want_state_is_will(TELOPT_BINARY)) { |
| 589 | printf("Already transmitting in binary mode.\n"); |
| 590 | } else { |
| 591 | printf("Negotiating binary mode on output.\n"); |
| 592 | tel_enter_binary(2); |
| 593 | } |
| 594 | } else { |
| 595 | if (my_want_state_is_wont(TELOPT_BINARY)) { |
| 596 | printf("Already transmitting in network ascii mode.\n"); |
| 597 | } else { |
| 598 | printf("Negotiating network ascii mode on output.\n"); |
| 599 | tel_leave_binary(2); |
| 600 | } |
| 601 | } |
| 602 | return 1; |
| 603 | } |
| 604 | |
| 605 | |
| 606 | extern int togglehelp P((void)); |
| 607 | #if defined(AUTHENTICATE) |
| 608 | extern int auth_togdebug P((int)); |
| 609 | #endif |
| 610 | #if defined(ENCRYPT) |
| 611 | extern int EncryptAutoEnc P((int)); |
| 612 | extern int EncryptAutoDec P((int)); |
| 613 | extern int EncryptDebug P((int)); |
| 614 | extern int EncryptVerbose P((int)); |
| 615 | #endif |
| 616 | |
| 617 | struct togglelist { |
| 618 | char *name; /* name of toggle */ |
| 619 | char *help; /* help message */ |
| 620 | int (*handler)(); /* routine to do actual setting */ |
| 621 | int *variable; |
| 622 | char *actionexplanation; |
| 623 | }; |
| 624 | |
| 625 | static struct togglelist Togglelist[] = { |
| 626 | { "autoflush", |
| 627 | "flushing of output when sending interrupt characters", |
| 628 | 0, |
| 629 | &autoflush, |
| 630 | "flush output when sending interrupt characters" }, |
| 631 | { "autosynch", |
| 632 | "automatic sending of interrupt characters in urgent mode", |
| 633 | 0, |
| 634 | &autosynch, |
| 635 | "send interrupt characters in urgent mode" }, |
| 636 | #if defined(AUTHENTICATE) |
| 637 | { "autologin", |
| 638 | "automatic sending of login and/or authentication info", |
| 639 | 0, |
| 640 | &autologin, |
| 641 | "send login name and/or authentication information" }, |
| 642 | { "authdebug", |
| 643 | "Toggle authentication debugging", |
| 644 | auth_togdebug, |
| 645 | 0, |
| 646 | "print authentication debugging information" }, |
| 647 | #endif |
| 648 | #if defined(ENCRYPT) |
| 649 | { "autoencrypt", |
| 650 | "automatic encryption of data stream", |
| 651 | EncryptAutoEnc, |
| 652 | 0, |
| 653 | "automatically encrypt output" }, |
| 654 | { "autodecrypt", |
| 655 | "automatic decryption of data stream", |
| 656 | EncryptAutoDec, |
| 657 | 0, |
| 658 | "automatically decrypt input" }, |
| 659 | { "verbose_encrypt", |
| 660 | "Toggle verbose encryption output", |
| 661 | EncryptVerbose, |
| 662 | 0, |
| 663 | "print verbose encryption output" }, |
| 664 | { "encdebug", |
| 665 | "Toggle encryption debugging", |
| 666 | EncryptDebug, |
| 667 | 0, |
| 668 | "print encryption debugging information" }, |
| 669 | #endif |
| 670 | { "skiprc", |
| 671 | "don't read ~/.telnetrc file", |
| 672 | 0, |
| 673 | &skiprc, |
| 674 | "read ~/.telnetrc file" }, |
| 675 | { "binary", |
| 676 | "sending and receiving of binary data", |
| 677 | togbinary, |
| 678 | 0, |
| 679 | 0 }, |
| 680 | { "inbinary", |
| 681 | "receiving of binary data", |
| 682 | togrbinary, |
| 683 | 0, |
| 684 | 0 }, |
| 685 | { "outbinary", |
| 686 | "sending of binary data", |
| 687 | togxbinary, |
| 688 | 0, |
| 689 | 0 }, |
| 690 | { "crlf", |
| 691 | "sending carriage returns as telnet <CR><LF>", |
| 692 | togcrlf, |
| 693 | &crlf, |
| 694 | 0 }, |
| 695 | { "crmod", |
| 696 | "mapping of received carriage returns", |
| 697 | 0, |
| 698 | &crmod, |
| 699 | "map carriage return on output" }, |
| 700 | { "localchars", |
| 701 | "local recognition of certain control characters", |
| 702 | lclchars, |
| 703 | &localchars, |
| 704 | "recognize certain control characters" }, |
| 705 | { " ", "", 0 }, /* empty line */ |
| 706 | #if defined(unix) && defined(TN3270) |
| 707 | { "apitrace", |
| 708 | "(debugging) toggle tracing of API transactions", |
| 709 | 0, |
| 710 | &apitrace, |
| 711 | "trace API transactions" }, |
| 712 | { "cursesdata", |
| 713 | "(debugging) toggle printing of hexadecimal curses data", |
| 714 | 0, |
| 715 | &cursesdata, |
| 716 | "print hexadecimal representation of curses data" }, |
| 717 | #endif /* defined(unix) && defined(TN3270) */ |
| 718 | { "debug", |
| 719 | "debugging", |
| 720 | togdebug, |
| 721 | &debug, |
| 722 | "turn on socket level debugging" }, |
| 723 | { "netdata", |
| 724 | "printing of hexadecimal network data (debugging)", |
| 725 | 0, |
| 726 | &netdata, |
| 727 | "print hexadecimal representation of network traffic" }, |
| 728 | { "prettydump", |
| 729 | "output of \"netdata\" to user readable format (debugging)", |
| 730 | 0, |
| 731 | &prettydump, |
| 732 | "print user readable output for \"netdata\"" }, |
| 733 | { "options", |
| 734 | "viewing of options processing (debugging)", |
| 735 | 0, |
| 736 | &showoptions, |
| 737 | "show option processing" }, |
| 738 | #if defined(unix) |
| 739 | { "termdata", |
| 740 | "(debugging) toggle printing of hexadecimal terminal data", |
| 741 | 0, |
| 742 | &termdata, |
| 743 | "print hexadecimal representation of terminal traffic" }, |
| 744 | #endif /* defined(unix) */ |
| 745 | { "?", |
| 746 | 0, |
| 747 | togglehelp }, |
| 748 | { "help", |
| 749 | 0, |
| 750 | togglehelp }, |
| 751 | { 0 } |
| 752 | }; |
| 753 | |
| 754 | static int |
| 755 | togglehelp() |
| 756 | { |
| 757 | struct togglelist *c; |
| 758 | |
| 759 | for (c = Togglelist; c->name; c++) { |
| 760 | if (c->help) { |
| 761 | if (*c->help) |
| 762 | printf("%-15s toggle %s\n", c->name, c->help); |
| 763 | else |
| 764 | printf("\n"); |
| 765 | } |
| 766 | } |
| 767 | printf("\n"); |
| 768 | printf("%-15s %s\n", "?", "display help information"); |
| 769 | return 0; |
| 770 | } |
| 771 | |
| 772 | static void |
| 773 | settogglehelp(set) |
| 774 | int set; |
| 775 | { |
| 776 | struct togglelist *c; |
| 777 | |
| 778 | for (c = Togglelist; c->name; c++) { |
| 779 | if (c->help) { |
| 780 | if (*c->help) |
| 781 | printf("%-15s %s %s\n", c->name, set ? "enable" : "disable", |
| 782 | c->help); |
| 783 | else |
| 784 | printf("\n"); |
| 785 | } |
| 786 | } |
| 787 | } |
| 788 | |
| 789 | #define GETTOGGLE(name) (struct togglelist *) \ |
| 790 | genget(name, (char **) Togglelist, sizeof(struct togglelist)) |
| 791 | |
| 792 | static int |
| 793 | toggle(argc, argv) |
| 794 | int argc; |
| 795 | char *argv[]; |
| 796 | { |
| 797 | int retval = 1; |
| 798 | char *name; |
| 799 | struct togglelist *c; |
| 800 | |
| 801 | if (argc < 2) { |
| 802 | fprintf(stderr, |
| 803 | "Need an argument to 'toggle' command. 'toggle ?' for help.\n"); |
| 804 | return 0; |
| 805 | } |
| 806 | argc--; |
| 807 | argv++; |
| 808 | while (argc--) { |
| 809 | name = *argv++; |
| 810 | c = GETTOGGLE(name); |
| 811 | if (Ambiguous(c)) { |
| 812 | fprintf(stderr, "'%s': ambiguous argument ('toggle ?' for help).\n", |
| 813 | name); |
| 814 | return 0; |
| 815 | } else if (c == 0) { |
| 816 | fprintf(stderr, "'%s': unknown argument ('toggle ?' for help).\n", |
| 817 | name); |
| 818 | return 0; |
| 819 | } else { |
| 820 | if (c->variable) { |
| 821 | *c->variable = !*c->variable; /* invert it */ |
| 822 | if (c->actionexplanation) { |
| 823 | printf("%s %s.\n", *c->variable? "Will" : "Won't", |
| 824 | c->actionexplanation); |
| 825 | } |
| 826 | } |
| 827 | if (c->handler) { |
| 828 | retval &= (*c->handler)(-1); |
| 829 | } |
| 830 | } |
| 831 | } |
| 832 | return retval; |
| 833 | } |
| 834 | \f |
| 835 | /* |
| 836 | * The following perform the "set" command. |
| 837 | */ |
| 838 | |
| 839 | #ifdef USE_TERMIO |
| 840 | struct termio new_tc = { 0 }; |
| 841 | #endif |
| 842 | |
| 843 | struct setlist { |
| 844 | char *name; /* name */ |
| 845 | char *help; /* help information */ |
| 846 | void (*handler)(); |
| 847 | cc_t *charp; /* where it is located at */ |
| 848 | }; |
| 849 | |
| 850 | static struct setlist Setlist[] = { |
| 851 | #ifdef KLUDGELINEMODE |
| 852 | { "echo", "character to toggle local echoing on/off", 0, &echoc }, |
| 853 | #endif |
| 854 | { "escape", "character to escape back to telnet command mode", 0, &escape }, |
| 855 | { "rlogin", "rlogin escape character", 0, &rlogin }, |
| 856 | { "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile}, |
| 857 | { " ", "" }, |
| 858 | { " ", "The following need 'localchars' to be toggled true", 0, 0 }, |
| 859 | { "flushoutput", "character to cause an Abort Output", 0, termFlushCharp }, |
| 860 | { "interrupt", "character to cause an Interrupt Process", 0, termIntCharp }, |
| 861 | { "quit", "character to cause an Abort process", 0, termQuitCharp }, |
| 862 | { "eof", "character to cause an EOF ", 0, termEofCharp }, |
| 863 | { " ", "" }, |
| 864 | { " ", "The following are for local editing in linemode", 0, 0 }, |
| 865 | { "erase", "character to use to erase a character", 0, termEraseCharp }, |
| 866 | { "kill", "character to use to erase a line", 0, termKillCharp }, |
| 867 | { "lnext", "character to use for literal next", 0, termLiteralNextCharp }, |
| 868 | { "susp", "character to cause a Suspend Process", 0, termSuspCharp }, |
| 869 | { "reprint", "character to use for line reprint", 0, termRprntCharp }, |
| 870 | { "worderase", "character to use to erase a word", 0, termWerasCharp }, |
| 871 | { "start", "character to use for XON", 0, termStartCharp }, |
| 872 | { "stop", "character to use for XOFF", 0, termStopCharp }, |
| 873 | { "forw1", "alternate end of line character", 0, termForw1Charp }, |
| 874 | { "forw2", "alternate end of line character", 0, termForw2Charp }, |
| 875 | { "ayt", "alternate AYT character", 0, termAytCharp }, |
| 876 | { 0 } |
| 877 | }; |
| 878 | |
| 879 | #if defined(CRAY) && !defined(__STDC__) |
| 880 | /* Work around compiler bug in pcc 4.1.5 */ |
| 881 | void |
| 882 | _setlist_init() |
| 883 | { |
| 884 | #ifndef KLUDGELINEMODE |
| 885 | #define N 5 |
| 886 | #else |
| 887 | #define N 6 |
| 888 | #endif |
| 889 | Setlist[N+0].charp = &termFlushChar; |
| 890 | Setlist[N+1].charp = &termIntChar; |
| 891 | Setlist[N+2].charp = &termQuitChar; |
| 892 | Setlist[N+3].charp = &termEofChar; |
| 893 | Setlist[N+6].charp = &termEraseChar; |
| 894 | Setlist[N+7].charp = &termKillChar; |
| 895 | Setlist[N+8].charp = &termLiteralNextChar; |
| 896 | Setlist[N+9].charp = &termSuspChar; |
| 897 | Setlist[N+10].charp = &termRprntChar; |
| 898 | Setlist[N+11].charp = &termWerasChar; |
| 899 | Setlist[N+12].charp = &termStartChar; |
| 900 | Setlist[N+13].charp = &termStopChar; |
| 901 | Setlist[N+14].charp = &termForw1Char; |
| 902 | Setlist[N+15].charp = &termForw2Char; |
| 903 | Setlist[N+16].charp = &termAytChar; |
| 904 | #undef N |
| 905 | } |
| 906 | #endif /* defined(CRAY) && !defined(__STDC__) */ |
| 907 | |
| 908 | static struct setlist * |
| 909 | getset(name) |
| 910 | char *name; |
| 911 | { |
| 912 | return (struct setlist *) |
| 913 | genget(name, (char **) Setlist, sizeof(struct setlist)); |
| 914 | } |
| 915 | |
| 916 | void |
| 917 | set_escape_char(s) |
| 918 | char *s; |
| 919 | { |
| 920 | if (rlogin != _POSIX_VDISABLE) { |
| 921 | rlogin = (s && *s) ? special(s) : _POSIX_VDISABLE; |
| 922 | printf("Telnet rlogin escape character is '%s'.\n", |
| 923 | control(rlogin)); |
| 924 | } else { |
| 925 | escape = (s && *s) ? special(s) : _POSIX_VDISABLE; |
| 926 | printf("Telnet escape character is '%s'.\n", control(escape)); |
| 927 | } |
| 928 | } |
| 929 | |
| 930 | static int |
| 931 | setcmd(argc, argv) |
| 932 | int argc; |
| 933 | char *argv[]; |
| 934 | { |
| 935 | int value; |
| 936 | struct setlist *ct; |
| 937 | struct togglelist *c; |
| 938 | |
| 939 | if (argc < 2 || argc > 3) { |
| 940 | printf("Format is 'set Name Value'\n'set ?' for help.\n"); |
| 941 | return 0; |
| 942 | } |
| 943 | if ((argc == 2) && (isprefix(argv[1], "?") || isprefix(argv[1], "help"))) { |
| 944 | for (ct = Setlist; ct->name; ct++) |
| 945 | printf("%-15s %s\n", ct->name, ct->help); |
| 946 | printf("\n"); |
| 947 | settogglehelp(1); |
| 948 | printf("%-15s %s\n", "?", "display help information"); |
| 949 | return 0; |
| 950 | } |
| 951 | |
| 952 | ct = getset(argv[1]); |
| 953 | if (ct == 0) { |
| 954 | c = GETTOGGLE(argv[1]); |
| 955 | if (c == 0) { |
| 956 | fprintf(stderr, "'%s': unknown argument ('set ?' for help).\n", |
| 957 | argv[1]); |
| 958 | return 0; |
| 959 | } else if (Ambiguous(c)) { |
| 960 | fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n", |
| 961 | argv[1]); |
| 962 | return 0; |
| 963 | } |
| 964 | if (c->variable) { |
| 965 | if ((argc == 2) || (strcmp("on", argv[2]) == 0)) |
| 966 | *c->variable = 1; |
| 967 | else if (strcmp("off", argv[2]) == 0) |
| 968 | *c->variable = 0; |
| 969 | else { |
| 970 | printf("Format is 'set togglename [on|off]'\n'set ?' for help.\n"); |
| 971 | return 0; |
| 972 | } |
| 973 | if (c->actionexplanation) { |
| 974 | printf("%s %s.\n", *c->variable? "Will" : "Won't", |
| 975 | c->actionexplanation); |
| 976 | } |
| 977 | } |
| 978 | if (c->handler) |
| 979 | (*c->handler)(1); |
| 980 | } else if (argc != 3) { |
| 981 | printf("Format is 'set Name Value'\n'set ?' for help.\n"); |
| 982 | return 0; |
| 983 | } else if (Ambiguous(ct)) { |
| 984 | fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n", |
| 985 | argv[1]); |
| 986 | return 0; |
| 987 | } else if (ct->handler) { |
| 988 | (*ct->handler)(argv[2]); |
| 989 | printf("%s set to \"%s\".\n", ct->name, (char *)ct->charp); |
| 990 | } else { |
| 991 | if (strcmp("off", argv[2])) { |
| 992 | value = special(argv[2]); |
| 993 | } else { |
| 994 | value = _POSIX_VDISABLE; |
| 995 | } |
| 996 | *(ct->charp) = (cc_t)value; |
| 997 | printf("%s character is '%s'.\n", ct->name, control(*(ct->charp))); |
| 998 | } |
| 999 | slc_check(); |
| 1000 | return 1; |
| 1001 | } |
| 1002 | |
| 1003 | static int |
| 1004 | unsetcmd(argc, argv) |
| 1005 | int argc; |
| 1006 | char *argv[]; |
| 1007 | { |
| 1008 | struct setlist *ct; |
| 1009 | struct togglelist *c; |
| 1010 | register char *name; |
| 1011 | |
| 1012 | if (argc < 2) { |
| 1013 | fprintf(stderr, |
| 1014 | "Need an argument to 'unset' command. 'unset ?' for help.\n"); |
| 1015 | return 0; |
| 1016 | } |
| 1017 | if (isprefix(argv[1], "?") || isprefix(argv[1], "help")) { |
| 1018 | for (ct = Setlist; ct->name; ct++) |
| 1019 | printf("%-15s %s\n", ct->name, ct->help); |
| 1020 | printf("\n"); |
| 1021 | settogglehelp(0); |
| 1022 | printf("%-15s %s\n", "?", "display help information"); |
| 1023 | return 0; |
| 1024 | } |
| 1025 | |
| 1026 | argc--; |
| 1027 | argv++; |
| 1028 | while (argc--) { |
| 1029 | name = *argv++; |
| 1030 | ct = getset(name); |
| 1031 | if (ct == 0) { |
| 1032 | c = GETTOGGLE(name); |
| 1033 | if (c == 0) { |
| 1034 | fprintf(stderr, "'%s': unknown argument ('unset ?' for help).\n", |
| 1035 | name); |
| 1036 | return 0; |
| 1037 | } else if (Ambiguous(c)) { |
| 1038 | fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n", |
| 1039 | name); |
| 1040 | return 0; |
| 1041 | } |
| 1042 | if (c->variable) { |
| 1043 | *c->variable = 0; |
| 1044 | if (c->actionexplanation) { |
| 1045 | printf("%s %s.\n", *c->variable? "Will" : "Won't", |
| 1046 | c->actionexplanation); |
| 1047 | } |
| 1048 | } |
| 1049 | if (c->handler) |
| 1050 | (*c->handler)(0); |
| 1051 | } else if (Ambiguous(ct)) { |
| 1052 | fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n", |
| 1053 | name); |
| 1054 | return 0; |
| 1055 | } else if (ct->handler) { |
| 1056 | (*ct->handler)(0); |
| 1057 | printf("%s reset to \"%s\".\n", ct->name, (char *)ct->charp); |
| 1058 | } else { |
| 1059 | *(ct->charp) = _POSIX_VDISABLE; |
| 1060 | printf("%s character is '%s'.\n", ct->name, control(*(ct->charp))); |
| 1061 | } |
| 1062 | } |
| 1063 | return 1; |
| 1064 | } |
| 1065 | \f |
| 1066 | /* |
| 1067 | * The following are the data structures and routines for the |
| 1068 | * 'mode' command. |
| 1069 | */ |
| 1070 | #ifdef KLUDGELINEMODE |
| 1071 | extern int kludgelinemode; |
| 1072 | |
| 1073 | static int |
| 1074 | dokludgemode() |
| 1075 | { |
| 1076 | kludgelinemode = 1; |
| 1077 | send_wont(TELOPT_LINEMODE, 1); |
| 1078 | send_dont(TELOPT_SGA, 1); |
| 1079 | send_dont(TELOPT_ECHO, 1); |
| 1080 | } |
| 1081 | #endif |
| 1082 | |
| 1083 | static int |
| 1084 | dolinemode() |
| 1085 | { |
| 1086 | #ifdef KLUDGELINEMODE |
| 1087 | if (kludgelinemode) |
| 1088 | send_dont(TELOPT_SGA, 1); |
| 1089 | #endif |
| 1090 | send_will(TELOPT_LINEMODE, 1); |
| 1091 | send_dont(TELOPT_ECHO, 1); |
| 1092 | return 1; |
| 1093 | } |
| 1094 | |
| 1095 | static int |
| 1096 | docharmode() |
| 1097 | { |
| 1098 | #ifdef KLUDGELINEMODE |
| 1099 | if (kludgelinemode) |
| 1100 | send_do(TELOPT_SGA, 1); |
| 1101 | else |
| 1102 | #endif |
| 1103 | send_wont(TELOPT_LINEMODE, 1); |
| 1104 | send_do(TELOPT_ECHO, 1); |
| 1105 | return 1; |
| 1106 | } |
| 1107 | |
| 1108 | static int |
| 1109 | dolmmode(bit, on) |
| 1110 | int bit, on; |
| 1111 | { |
| 1112 | unsigned char c; |
| 1113 | extern int linemode; |
| 1114 | |
| 1115 | if (my_want_state_is_wont(TELOPT_LINEMODE)) { |
| 1116 | printf("?Need to have LINEMODE option enabled first.\n"); |
| 1117 | printf("'mode ?' for help.\n"); |
| 1118 | return 0; |
| 1119 | } |
| 1120 | |
| 1121 | if (on) |
| 1122 | c = (linemode | bit); |
| 1123 | else |
| 1124 | c = (linemode & ~bit); |
| 1125 | lm_mode(&c, 1, 1); |
| 1126 | return 1; |
| 1127 | } |
| 1128 | |
| 1129 | int |
| 1130 | setmode(bit) |
| 1131 | { |
| 1132 | return dolmmode(bit, 1); |
| 1133 | } |
| 1134 | |
| 1135 | int |
| 1136 | clearmode(bit) |
| 1137 | { |
| 1138 | return dolmmode(bit, 0); |
| 1139 | } |
| 1140 | |
| 1141 | struct modelist { |
| 1142 | char *name; /* command name */ |
| 1143 | char *help; /* help string */ |
| 1144 | int (*handler)(); /* routine which executes command */ |
| 1145 | int needconnect; /* Do we need to be connected to execute? */ |
| 1146 | int arg1; |
| 1147 | }; |
| 1148 | |
| 1149 | extern int modehelp(); |
| 1150 | |
| 1151 | static struct modelist ModeList[] = { |
| 1152 | { "character", "Disable LINEMODE option", docharmode, 1 }, |
| 1153 | #ifdef KLUDGELINEMODE |
| 1154 | { "", "(or disable obsolete line-by-line mode)", 0 }, |
| 1155 | #endif |
| 1156 | { "line", "Enable LINEMODE option", dolinemode, 1 }, |
| 1157 | #ifdef KLUDGELINEMODE |
| 1158 | { "", "(or enable obsolete line-by-line mode)", 0 }, |
| 1159 | #endif |
| 1160 | { "", "", 0 }, |
| 1161 | { "", "These require the LINEMODE option to be enabled", 0 }, |
| 1162 | { "isig", "Enable signal trapping", setmode, 1, MODE_TRAPSIG }, |
| 1163 | { "+isig", 0, setmode, 1, MODE_TRAPSIG }, |
| 1164 | { "-isig", "Disable signal trapping", clearmode, 1, MODE_TRAPSIG }, |
| 1165 | { "edit", "Enable character editing", setmode, 1, MODE_EDIT }, |
| 1166 | { "+edit", 0, setmode, 1, MODE_EDIT }, |
| 1167 | { "-edit", "Disable character editing", clearmode, 1, MODE_EDIT }, |
| 1168 | { "softtabs", "Enable tab expansion", setmode, 1, MODE_SOFT_TAB }, |
| 1169 | { "+softtabs", 0, setmode, 1, MODE_SOFT_TAB }, |
| 1170 | { "-softtabs", "Disable character editing", clearmode, 1, MODE_SOFT_TAB }, |
| 1171 | { "litecho", "Enable literal character echo", setmode, 1, MODE_LIT_ECHO }, |
| 1172 | { "+litecho", 0, setmode, 1, MODE_LIT_ECHO }, |
| 1173 | { "-litecho", "Disable literal character echo", clearmode, 1, MODE_LIT_ECHO }, |
| 1174 | { "help", 0, modehelp, 0 }, |
| 1175 | #ifdef KLUDGELINEMODE |
| 1176 | { "kludgeline", 0, dokludgemode, 1 }, |
| 1177 | #endif |
| 1178 | { "", "", 0 }, |
| 1179 | { "?", "Print help information", modehelp, 0 }, |
| 1180 | { 0 }, |
| 1181 | }; |
| 1182 | |
| 1183 | |
| 1184 | int |
| 1185 | modehelp() |
| 1186 | { |
| 1187 | struct modelist *mt; |
| 1188 | |
| 1189 | printf("format is: 'mode Mode', where 'Mode' is one of:\n\n"); |
| 1190 | for (mt = ModeList; mt->name; mt++) { |
| 1191 | if (mt->help) { |
| 1192 | if (*mt->help) |
| 1193 | printf("%-15s %s\n", mt->name, mt->help); |
| 1194 | else |
| 1195 | printf("\n"); |
| 1196 | } |
| 1197 | } |
| 1198 | return 0; |
| 1199 | } |
| 1200 | |
| 1201 | #define GETMODECMD(name) (struct modelist *) \ |
| 1202 | genget(name, (char **) ModeList, sizeof(struct modelist)) |
| 1203 | |
| 1204 | static int |
| 1205 | modecmd(argc, argv) |
| 1206 | int argc; |
| 1207 | char *argv[]; |
| 1208 | { |
| 1209 | struct modelist *mt; |
| 1210 | |
| 1211 | if (argc != 2) { |
| 1212 | printf("'mode' command requires an argument\n"); |
| 1213 | printf("'mode ?' for help.\n"); |
| 1214 | } else if ((mt = GETMODECMD(argv[1])) == 0) { |
| 1215 | fprintf(stderr, "Unknown mode '%s' ('mode ?' for help).\n", argv[1]); |
| 1216 | } else if (Ambiguous(mt)) { |
| 1217 | fprintf(stderr, "Ambiguous mode '%s' ('mode ?' for help).\n", argv[1]); |
| 1218 | } else if (mt->needconnect && !connected) { |
| 1219 | printf("?Need to be connected first.\n"); |
| 1220 | printf("'mode ?' for help.\n"); |
| 1221 | } else if (mt->handler) { |
| 1222 | return (*mt->handler)(mt->arg1); |
| 1223 | } |
| 1224 | return 0; |
| 1225 | } |
| 1226 | \f |
| 1227 | /* |
| 1228 | * The following data structures and routines implement the |
| 1229 | * "display" command. |
| 1230 | */ |
| 1231 | |
| 1232 | static int |
| 1233 | display(argc, argv) |
| 1234 | int argc; |
| 1235 | char *argv[]; |
| 1236 | { |
| 1237 | struct togglelist *tl; |
| 1238 | struct setlist *sl; |
| 1239 | |
| 1240 | #define dotog(tl) if (tl->variable && tl->actionexplanation) { \ |
| 1241 | if (*tl->variable) { \ |
| 1242 | printf("will"); \ |
| 1243 | } else { \ |
| 1244 | printf("won't"); \ |
| 1245 | } \ |
| 1246 | printf(" %s.\n", tl->actionexplanation); \ |
| 1247 | } |
| 1248 | |
| 1249 | #define doset(sl) if (sl->name && *sl->name != ' ') { \ |
| 1250 | if (sl->handler == 0) \ |
| 1251 | printf("%-15s [%s]\n", sl->name, control(*sl->charp)); \ |
| 1252 | else \ |
| 1253 | printf("%-15s \"%s\"\n", sl->name, (char *)sl->charp); \ |
| 1254 | } |
| 1255 | |
| 1256 | if (argc == 1) { |
| 1257 | for (tl = Togglelist; tl->name; tl++) { |
| 1258 | dotog(tl); |
| 1259 | } |
| 1260 | printf("\n"); |
| 1261 | for (sl = Setlist; sl->name; sl++) { |
| 1262 | doset(sl); |
| 1263 | } |
| 1264 | } else { |
| 1265 | int i; |
| 1266 | |
| 1267 | for (i = 1; i < argc; i++) { |
| 1268 | sl = getset(argv[i]); |
| 1269 | tl = GETTOGGLE(argv[i]); |
| 1270 | if (Ambiguous(sl) || Ambiguous(tl)) { |
| 1271 | printf("?Ambiguous argument '%s'.\n", argv[i]); |
| 1272 | return 0; |
| 1273 | } else if (!sl && !tl) { |
| 1274 | printf("?Unknown argument '%s'.\n", argv[i]); |
| 1275 | return 0; |
| 1276 | } else { |
| 1277 | if (tl) { |
| 1278 | dotog(tl); |
| 1279 | } |
| 1280 | if (sl) { |
| 1281 | doset(sl); |
| 1282 | } |
| 1283 | } |
| 1284 | } |
| 1285 | } |
| 1286 | /*@*/optionstatus(); |
| 1287 | #if defined(ENCRYPT) |
| 1288 | EncryptStatus(); |
| 1289 | #endif |
| 1290 | return 1; |
| 1291 | #undef doset |
| 1292 | #undef dotog |
| 1293 | } |
| 1294 | \f |
| 1295 | /* |
| 1296 | * The following are the data structures, and many of the routines, |
| 1297 | * relating to command processing. |
| 1298 | */ |
| 1299 | |
| 1300 | /* |
| 1301 | * Set the escape character. |
| 1302 | */ |
| 1303 | static int |
| 1304 | setescape(argc, argv) |
| 1305 | int argc; |
| 1306 | char *argv[]; |
| 1307 | { |
| 1308 | register char *arg; |
| 1309 | char buf[50]; |
| 1310 | |
| 1311 | printf( |
| 1312 | "Deprecated usage - please use 'set escape%s%s' in the future.\n", |
| 1313 | (argc > 2)? " ":"", (argc > 2)? argv[1]: ""); |
| 1314 | if (argc > 2) |
| 1315 | arg = argv[1]; |
| 1316 | else { |
| 1317 | printf("new escape character: "); |
| 1318 | (void) fgets(buf, sizeof(buf), stdin); |
| 1319 | arg = buf; |
| 1320 | } |
| 1321 | if (arg[0] != '\0') |
| 1322 | escape = arg[0]; |
| 1323 | if (!In3270) { |
| 1324 | printf("Escape character is '%s'.\n", control(escape)); |
| 1325 | } |
| 1326 | (void) fflush(stdout); |
| 1327 | return 1; |
| 1328 | } |
| 1329 | |
| 1330 | /*VARARGS*/ |
| 1331 | static int |
| 1332 | togcrmod() |
| 1333 | { |
| 1334 | crmod = !crmod; |
| 1335 | printf("Deprecated usage - please use 'toggle crmod' in the future.\n"); |
| 1336 | printf("%s map carriage return on output.\n", crmod ? "Will" : "Won't"); |
| 1337 | (void) fflush(stdout); |
| 1338 | return 1; |
| 1339 | } |
| 1340 | |
| 1341 | /*VARARGS*/ |
| 1342 | int |
| 1343 | suspend() |
| 1344 | { |
| 1345 | #ifdef SIGTSTP |
| 1346 | setcommandmode(); |
| 1347 | { |
| 1348 | long oldrows, oldcols, newrows, newcols, err; |
| 1349 | |
| 1350 | err = TerminalWindowSize(&oldrows, &oldcols); |
| 1351 | (void) kill(0, SIGTSTP); |
| 1352 | err += TerminalWindowSize(&newrows, &newcols); |
| 1353 | if (connected && !err && |
| 1354 | ((oldrows != newrows) || (oldcols != newcols))) { |
| 1355 | sendnaws(); |
| 1356 | } |
| 1357 | } |
| 1358 | /* reget parameters in case they were changed */ |
| 1359 | TerminalSaveState(); |
| 1360 | setconnmode(0); |
| 1361 | #else |
| 1362 | printf("Suspend is not supported. Try the '!' command instead\n"); |
| 1363 | #endif |
| 1364 | return 1; |
| 1365 | } |
| 1366 | |
| 1367 | #if !defined(TN3270) |
| 1368 | /*ARGSUSED*/ |
| 1369 | int |
| 1370 | shell(argc, argv) |
| 1371 | int argc; |
| 1372 | char *argv[]; |
| 1373 | { |
| 1374 | setcommandmode(); |
| 1375 | switch(vfork()) { |
| 1376 | case -1: |
| 1377 | perror("Fork failed\n"); |
| 1378 | break; |
| 1379 | |
| 1380 | case 0: |
| 1381 | { |
| 1382 | /* |
| 1383 | * Fire up the shell in the child. |
| 1384 | */ |
| 1385 | register char *shellp, *shellname; |
| 1386 | extern char *rindex(); |
| 1387 | |
| 1388 | shellp = getenv("SHELL"); |
| 1389 | if (shellp == NULL) |
| 1390 | shellp = "/bin/sh"; |
| 1391 | if ((shellname = rindex(shellp, '/')) == 0) |
| 1392 | shellname = shellp; |
| 1393 | else |
| 1394 | shellname++; |
| 1395 | if (argc > 1) |
| 1396 | execl(shellp, shellname, "-c", &saveline[1], 0); |
| 1397 | else |
| 1398 | execl(shellp, shellname, 0); |
| 1399 | perror("Execl"); |
| 1400 | _exit(1); |
| 1401 | } |
| 1402 | default: |
| 1403 | (void)wait((int *)0); /* Wait for the shell to complete */ |
| 1404 | } |
| 1405 | return 1; |
| 1406 | } |
| 1407 | #endif /* !defined(TN3270) */ |
| 1408 | |
| 1409 | /*VARARGS*/ |
| 1410 | static |
| 1411 | bye(argc, argv) |
| 1412 | int argc; /* Number of arguments */ |
| 1413 | char *argv[]; /* arguments */ |
| 1414 | { |
| 1415 | extern int resettermname; |
| 1416 | |
| 1417 | if (connected) { |
| 1418 | (void) shutdown(net, 2); |
| 1419 | printf("Connection closed.\n"); |
| 1420 | (void) NetClose(net); |
| 1421 | connected = 0; |
| 1422 | resettermname = 1; |
| 1423 | #if defined(AUTHENTICATE) || defined(ENCRYPT) |
| 1424 | auth_encrypt_connect(connected); |
| 1425 | #endif |
| 1426 | /* reset options */ |
| 1427 | tninit(); |
| 1428 | #if defined(TN3270) |
| 1429 | SetIn3270(); /* Get out of 3270 mode */ |
| 1430 | #endif /* defined(TN3270) */ |
| 1431 | } |
| 1432 | if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) { |
| 1433 | longjmp(toplevel, 1); |
| 1434 | /* NOTREACHED */ |
| 1435 | } |
| 1436 | return 1; /* Keep lint, etc., happy */ |
| 1437 | } |
| 1438 | |
| 1439 | /*VARARGS*/ |
| 1440 | quit() |
| 1441 | { |
| 1442 | (void) call(bye, "bye", "fromquit", 0); |
| 1443 | Exit(0); |
| 1444 | /*NOTREACHED*/ |
| 1445 | } |
| 1446 | |
| 1447 | /*VARARGS*/ |
| 1448 | int |
| 1449 | logout() |
| 1450 | { |
| 1451 | send_do(TELOPT_LOGOUT, 1); |
| 1452 | (void) netflush(); |
| 1453 | return 1; |
| 1454 | } |
| 1455 | |
| 1456 | \f |
| 1457 | /* |
| 1458 | * The SLC command. |
| 1459 | */ |
| 1460 | |
| 1461 | struct slclist { |
| 1462 | char *name; |
| 1463 | char *help; |
| 1464 | void (*handler)(); |
| 1465 | int arg; |
| 1466 | }; |
| 1467 | |
| 1468 | extern void slc_help(); |
| 1469 | |
| 1470 | struct slclist SlcList[] = { |
| 1471 | { "export", "Use local special character definitions", |
| 1472 | slc_mode_export, 0 }, |
| 1473 | { "import", "Use remote special character definitions", |
| 1474 | slc_mode_import, 1 }, |
| 1475 | { "check", "Verify remote special character definitions", |
| 1476 | slc_mode_import, 0 }, |
| 1477 | { "help", 0, slc_help, 0 }, |
| 1478 | { "?", "Print help information", slc_help, 0 }, |
| 1479 | { 0 }, |
| 1480 | }; |
| 1481 | |
| 1482 | static void |
| 1483 | slc_help() |
| 1484 | { |
| 1485 | struct slclist *c; |
| 1486 | |
| 1487 | for (c = SlcList; c->name; c++) { |
| 1488 | if (c->help) { |
| 1489 | if (*c->help) |
| 1490 | printf("%-15s %s\n", c->name, c->help); |
| 1491 | else |
| 1492 | printf("\n"); |
| 1493 | } |
| 1494 | } |
| 1495 | } |
| 1496 | |
| 1497 | static struct slclist * |
| 1498 | getslc(name) |
| 1499 | char *name; |
| 1500 | { |
| 1501 | return (struct slclist *) |
| 1502 | genget(name, (char **) SlcList, sizeof(struct slclist)); |
| 1503 | } |
| 1504 | |
| 1505 | static |
| 1506 | slccmd(argc, argv) |
| 1507 | int argc; |
| 1508 | char *argv[]; |
| 1509 | { |
| 1510 | struct slclist *c; |
| 1511 | |
| 1512 | if (argc != 2) { |
| 1513 | fprintf(stderr, |
| 1514 | "Need an argument to 'slc' command. 'slc ?' for help.\n"); |
| 1515 | return 0; |
| 1516 | } |
| 1517 | c = getslc(argv[1]); |
| 1518 | if (c == 0) { |
| 1519 | fprintf(stderr, "'%s': unknown argument ('slc ?' for help).\n", |
| 1520 | argv[1]); |
| 1521 | return 0; |
| 1522 | } |
| 1523 | if (Ambiguous(c)) { |
| 1524 | fprintf(stderr, "'%s': ambiguous argument ('slc ?' for help).\n", |
| 1525 | argv[1]); |
| 1526 | return 0; |
| 1527 | } |
| 1528 | (*c->handler)(c->arg); |
| 1529 | slcstate(); |
| 1530 | return 1; |
| 1531 | } |
| 1532 | \f |
| 1533 | /* |
| 1534 | * The ENVIRON command. |
| 1535 | */ |
| 1536 | |
| 1537 | struct envlist { |
| 1538 | char *name; |
| 1539 | char *help; |
| 1540 | void (*handler)(); |
| 1541 | int narg; |
| 1542 | }; |
| 1543 | |
| 1544 | extern struct env_lst * |
| 1545 | env_define P((unsigned char *, unsigned char *)); |
| 1546 | extern void |
| 1547 | env_undefine P((unsigned char *)), |
| 1548 | env_export P((unsigned char *)), |
| 1549 | env_unexport P((unsigned char *)), |
| 1550 | env_send P((unsigned char *)), |
| 1551 | env_list P((void)), |
| 1552 | env_help P((void)); |
| 1553 | |
| 1554 | struct envlist EnvList[] = { |
| 1555 | { "define", "Define an environment variable", |
| 1556 | (void (*)())env_define, 2 }, |
| 1557 | { "undefine", "Undefine an environment variable", |
| 1558 | env_undefine, 1 }, |
| 1559 | { "export", "Mark an environment variable for automatic export", |
| 1560 | env_export, 1 }, |
| 1561 | { "unexport", "Don't mark an environment variable for automatic export", |
| 1562 | env_unexport, 1 }, |
| 1563 | { "send", "Send an environment variable", env_send, 1 }, |
| 1564 | { "list", "List the current environment variables", |
| 1565 | env_list, 0 }, |
| 1566 | { "help", 0, env_help, 0 }, |
| 1567 | { "?", "Print help information", env_help, 0 }, |
| 1568 | { 0 }, |
| 1569 | }; |
| 1570 | |
| 1571 | static void |
| 1572 | env_help() |
| 1573 | { |
| 1574 | struct envlist *c; |
| 1575 | |
| 1576 | for (c = EnvList; c->name; c++) { |
| 1577 | if (c->help) { |
| 1578 | if (*c->help) |
| 1579 | printf("%-15s %s\n", c->name, c->help); |
| 1580 | else |
| 1581 | printf("\n"); |
| 1582 | } |
| 1583 | } |
| 1584 | } |
| 1585 | |
| 1586 | static struct envlist * |
| 1587 | getenvcmd(name) |
| 1588 | char *name; |
| 1589 | { |
| 1590 | return (struct envlist *) |
| 1591 | genget(name, (char **) EnvList, sizeof(struct envlist)); |
| 1592 | } |
| 1593 | |
| 1594 | env_cmd(argc, argv) |
| 1595 | int argc; |
| 1596 | char *argv[]; |
| 1597 | { |
| 1598 | struct envlist *c; |
| 1599 | |
| 1600 | if (argc < 2) { |
| 1601 | fprintf(stderr, |
| 1602 | "Need an argument to 'environ' command. 'environ ?' for help.\n"); |
| 1603 | return 0; |
| 1604 | } |
| 1605 | c = getenvcmd(argv[1]); |
| 1606 | if (c == 0) { |
| 1607 | fprintf(stderr, "'%s': unknown argument ('environ ?' for help).\n", |
| 1608 | argv[1]); |
| 1609 | return 0; |
| 1610 | } |
| 1611 | if (Ambiguous(c)) { |
| 1612 | fprintf(stderr, "'%s': ambiguous argument ('environ ?' for help).\n", |
| 1613 | argv[1]); |
| 1614 | return 0; |
| 1615 | } |
| 1616 | if (c->narg + 2 != argc) { |
| 1617 | fprintf(stderr, |
| 1618 | "Need %s%d argument%s to 'environ %s' command. 'environ ?' for help.\n", |
| 1619 | c->narg < argc + 2 ? "only " : "", |
| 1620 | c->narg, c->narg == 1 ? "" : "s", c->name); |
| 1621 | return 0; |
| 1622 | } |
| 1623 | (*c->handler)(argv[2], argv[3]); |
| 1624 | return 1; |
| 1625 | } |
| 1626 | |
| 1627 | struct env_lst { |
| 1628 | struct env_lst *next; /* pointer to next structure */ |
| 1629 | struct env_lst *prev; /* pointer to next structure */ |
| 1630 | unsigned char *var; /* pointer to variable name */ |
| 1631 | unsigned char *value; /* pointer to varialbe value */ |
| 1632 | int export; /* 1 -> export with default list of variables */ |
| 1633 | }; |
| 1634 | |
| 1635 | struct env_lst envlisthead; |
| 1636 | |
| 1637 | struct env_lst * |
| 1638 | env_find(var) |
| 1639 | unsigned char *var; |
| 1640 | { |
| 1641 | register struct env_lst *ep; |
| 1642 | |
| 1643 | for (ep = envlisthead.next; ep; ep = ep->next) { |
| 1644 | if (strcmp((char *)ep->var, (char *)var) == 0) |
| 1645 | return(ep); |
| 1646 | } |
| 1647 | return(NULL); |
| 1648 | } |
| 1649 | |
| 1650 | void |
| 1651 | env_init() |
| 1652 | { |
| 1653 | extern char **environ; |
| 1654 | register char **epp, *cp; |
| 1655 | register struct env_lst *ep; |
| 1656 | extern char *index(); |
| 1657 | |
| 1658 | for (epp = environ; *epp; epp++) { |
| 1659 | if (cp = index(*epp, '=')) { |
| 1660 | *cp = '\0'; |
| 1661 | ep = env_define((unsigned char *)*epp, |
| 1662 | (unsigned char *)cp+1); |
| 1663 | ep->export = 0; |
| 1664 | *cp = '='; |
| 1665 | } |
| 1666 | } |
| 1667 | /* |
| 1668 | * Special case for DISPLAY variable. If it is ":0.0" or |
| 1669 | * "unix:0.0", we have to get rid of "unix" and insert our |
| 1670 | * hostname. |
| 1671 | */ |
| 1672 | if ((ep = env_find("DISPLAY")) |
| 1673 | && ((*ep->value == ':') |
| 1674 | || (strncmp((char *)ep->value, "unix:", 5) == 0))) { |
| 1675 | char hbuf[256+1]; |
| 1676 | char *cp2 = index((char *)ep->value, ':'); |
| 1677 | |
| 1678 | gethostname(hbuf, 256); |
| 1679 | hbuf[256] = '\0'; |
| 1680 | cp = (char *)malloc(strlen(hbuf) + strlen(cp2) + 1); |
| 1681 | sprintf((char *)cp, "%s%s", hbuf, cp2); |
| 1682 | free(ep->value); |
| 1683 | ep->value = (unsigned char *)cp; |
| 1684 | } |
| 1685 | /* |
| 1686 | * If USER is not defined, but LOGNAME is, then add |
| 1687 | * USER with the value from LOGNAME. By default, we |
| 1688 | * don't export the USER variable. |
| 1689 | */ |
| 1690 | if ((env_find("USER") == NULL) && (ep = env_find("LOGNAME"))) { |
| 1691 | env_define((unsigned char *)"USER", ep->value); |
| 1692 | env_unexport((unsigned char *)"USER"); |
| 1693 | } |
| 1694 | env_export((unsigned char *)"DISPLAY"); |
| 1695 | env_export((unsigned char *)"PRINTER"); |
| 1696 | } |
| 1697 | |
| 1698 | struct env_lst * |
| 1699 | env_define(var, value) |
| 1700 | unsigned char *var, *value; |
| 1701 | { |
| 1702 | register struct env_lst *ep; |
| 1703 | |
| 1704 | if (ep = env_find(var)) { |
| 1705 | if (ep->var) |
| 1706 | free(ep->var); |
| 1707 | if (ep->value) |
| 1708 | free(ep->value); |
| 1709 | } else { |
| 1710 | ep = (struct env_lst *)malloc(sizeof(struct env_lst)); |
| 1711 | ep->next = envlisthead.next; |
| 1712 | envlisthead.next = ep; |
| 1713 | ep->prev = &envlisthead; |
| 1714 | if (ep->next) |
| 1715 | ep->next->prev = ep; |
| 1716 | } |
| 1717 | ep->export = 1; |
| 1718 | ep->var = (unsigned char *)strdup((char *)var); |
| 1719 | ep->value = (unsigned char *)strdup((char *)value); |
| 1720 | return(ep); |
| 1721 | } |
| 1722 | |
| 1723 | void |
| 1724 | env_undefine(var) |
| 1725 | unsigned char *var; |
| 1726 | { |
| 1727 | register struct env_lst *ep; |
| 1728 | |
| 1729 | if (ep = env_find(var)) { |
| 1730 | ep->prev->next = ep->next; |
| 1731 | if (ep->next) |
| 1732 | ep->next->prev = ep->prev; |
| 1733 | if (ep->var) |
| 1734 | free(ep->var); |
| 1735 | if (ep->value) |
| 1736 | free(ep->value); |
| 1737 | free(ep); |
| 1738 | } |
| 1739 | } |
| 1740 | |
| 1741 | void |
| 1742 | env_export(var) |
| 1743 | unsigned char *var; |
| 1744 | { |
| 1745 | register struct env_lst *ep; |
| 1746 | |
| 1747 | if (ep = env_find(var)) |
| 1748 | ep->export = 1; |
| 1749 | } |
| 1750 | |
| 1751 | void |
| 1752 | env_unexport(var) |
| 1753 | unsigned char *var; |
| 1754 | { |
| 1755 | register struct env_lst *ep; |
| 1756 | |
| 1757 | if (ep = env_find(var)) |
| 1758 | ep->export = 0; |
| 1759 | } |
| 1760 | |
| 1761 | void |
| 1762 | env_send(var) |
| 1763 | unsigned char *var; |
| 1764 | { |
| 1765 | register struct env_lst *ep; |
| 1766 | |
| 1767 | if (my_state_is_wont(TELOPT_ENVIRON)) { |
| 1768 | fprintf(stderr, |
| 1769 | "Cannot send '%s': Telnet ENVIRON option not enabled\n", |
| 1770 | var); |
| 1771 | return; |
| 1772 | } |
| 1773 | ep = env_find(var); |
| 1774 | if (ep == 0) { |
| 1775 | fprintf(stderr, "Cannot send '%s': variable not defined\n", |
| 1776 | var); |
| 1777 | return; |
| 1778 | } |
| 1779 | env_opt_start_info(); |
| 1780 | env_opt_add(ep->var); |
| 1781 | env_opt_end(0); |
| 1782 | } |
| 1783 | |
| 1784 | void |
| 1785 | env_list() |
| 1786 | { |
| 1787 | register struct env_lst *ep; |
| 1788 | |
| 1789 | for (ep = envlisthead.next; ep; ep = ep->next) { |
| 1790 | printf("%c %-20s %s\n", ep->export ? '*' : ' ', |
| 1791 | ep->var, ep->value); |
| 1792 | } |
| 1793 | } |
| 1794 | |
| 1795 | unsigned char * |
| 1796 | env_default(init) |
| 1797 | int init; |
| 1798 | { |
| 1799 | static struct env_lst *nep = NULL; |
| 1800 | |
| 1801 | if (init) { |
| 1802 | nep = &envlisthead; |
| 1803 | return; |
| 1804 | } |
| 1805 | if (nep) { |
| 1806 | while (nep = nep->next) { |
| 1807 | if (nep->export) |
| 1808 | return(nep->var); |
| 1809 | } |
| 1810 | } |
| 1811 | return(NULL); |
| 1812 | } |
| 1813 | |
| 1814 | unsigned char * |
| 1815 | env_getvalue(var) |
| 1816 | unsigned char *var; |
| 1817 | { |
| 1818 | register struct env_lst *ep; |
| 1819 | |
| 1820 | if (ep = env_find(var)) |
| 1821 | return(ep->value); |
| 1822 | return(NULL); |
| 1823 | } |
| 1824 | |
| 1825 | #if defined(AUTHENTICATE) |
| 1826 | /* |
| 1827 | * The AUTHENTICATE command. |
| 1828 | */ |
| 1829 | |
| 1830 | struct authlist { |
| 1831 | char *name; |
| 1832 | char *help; |
| 1833 | int (*handler)(); |
| 1834 | int narg; |
| 1835 | }; |
| 1836 | |
| 1837 | extern int |
| 1838 | auth_enable P((int)), |
| 1839 | auth_disable P((int)), |
| 1840 | auth_status P((void)), |
| 1841 | auth_help P((void)); |
| 1842 | |
| 1843 | struct authlist AuthList[] = { |
| 1844 | { "status", "Display current status of authentication information", |
| 1845 | auth_status, 0 }, |
| 1846 | { "disable", "Disable an authentication type ('auth disable ?' for more)", |
| 1847 | auth_disable, 1 }, |
| 1848 | { "enable", "Enable an authentication type ('auth enable ?' for more)", |
| 1849 | auth_enable, 1 }, |
| 1850 | { "help", 0, auth_help, 0 }, |
| 1851 | { "?", "Print help information", auth_help, 0 }, |
| 1852 | { 0 }, |
| 1853 | }; |
| 1854 | |
| 1855 | static int |
| 1856 | auth_help() |
| 1857 | { |
| 1858 | struct authlist *c; |
| 1859 | |
| 1860 | for (c = AuthList; c->name; c++) { |
| 1861 | if (c->help) { |
| 1862 | if (*c->help) |
| 1863 | printf("%-15s %s\n", c->name, c->help); |
| 1864 | else |
| 1865 | printf("\n"); |
| 1866 | } |
| 1867 | } |
| 1868 | return 0; |
| 1869 | } |
| 1870 | |
| 1871 | auth_cmd(argc, argv) |
| 1872 | int argc; |
| 1873 | char *argv[]; |
| 1874 | { |
| 1875 | struct authlist *c; |
| 1876 | |
| 1877 | c = (struct authlist *) |
| 1878 | genget(argv[1], (char **) AuthList, sizeof(struct authlist)); |
| 1879 | if (c == 0) { |
| 1880 | fprintf(stderr, "'%s': unknown argument ('auth ?' for help).\n", |
| 1881 | argv[1]); |
| 1882 | return 0; |
| 1883 | } |
| 1884 | if (Ambiguous(c)) { |
| 1885 | fprintf(stderr, "'%s': ambiguous argument ('auth ?' for help).\n", |
| 1886 | argv[1]); |
| 1887 | return 0; |
| 1888 | } |
| 1889 | if (c->narg + 2 != argc) { |
| 1890 | fprintf(stderr, |
| 1891 | "Need %s%d argument%s to 'auth %s' command. 'auth ?' for help.\n", |
| 1892 | c->narg < argc + 2 ? "only " : "", |
| 1893 | c->narg, c->narg == 1 ? "" : "s", c->name); |
| 1894 | return 0; |
| 1895 | } |
| 1896 | return((*c->handler)(argv[2], argv[3])); |
| 1897 | } |
| 1898 | #endif |
| 1899 | |
| 1900 | #if defined(ENCRYPT) |
| 1901 | /* |
| 1902 | * The ENCRYPT command. |
| 1903 | */ |
| 1904 | |
| 1905 | struct encryptlist { |
| 1906 | char *name; |
| 1907 | char *help; |
| 1908 | int (*handler)(); |
| 1909 | int needconnect; |
| 1910 | int minarg; |
| 1911 | int maxarg; |
| 1912 | }; |
| 1913 | |
| 1914 | extern int |
| 1915 | EncryptEnable P((char *, char *)), |
| 1916 | EncryptDisable P((char *, char *)), |
| 1917 | EncryptType P((char *, char *)), |
| 1918 | EncryptStart P((char *)), |
| 1919 | EncryptStartInput P((void)), |
| 1920 | EncryptStartOutput P((void)), |
| 1921 | EncryptStop P((char *)), |
| 1922 | EncryptStopInput P((void)), |
| 1923 | EncryptStopOutput P((void)), |
| 1924 | EncryptStatus P((void)), |
| 1925 | EncryptHelp P((void)); |
| 1926 | |
| 1927 | struct encryptlist EncryptList[] = { |
| 1928 | { "enable", "Enable encryption. ('encrypt enable ?' for more)", |
| 1929 | EncryptEnable, 1, 1, 2 }, |
| 1930 | { "disable", "Disable encryption. ('encrypt enable ?' for more)", |
| 1931 | EncryptDisable, 0, 1, 2 }, |
| 1932 | { "type", "Set encryptiong type. ('encrypt type ?' for more)", |
| 1933 | EncryptType, 0, 1, 1 }, |
| 1934 | { "start", "Start encryption. ('encrypt start ?' for more)", |
| 1935 | EncryptStart, 1, 0, 1 }, |
| 1936 | { "stop", "Stop encryption. ('encrypt stop ?' for more)", |
| 1937 | EncryptStop, 1, 0, 1 }, |
| 1938 | { "input", "Start encrypting the input stream", |
| 1939 | EncryptStartInput, 1, 0, 0 }, |
| 1940 | { "-input", "Stop encrypting the input stream", |
| 1941 | EncryptStopInput, 1, 0, 0 }, |
| 1942 | { "output", "Start encrypting the output stream", |
| 1943 | EncryptStartOutput, 1, 0, 0 }, |
| 1944 | { "-output", "Stop encrypting the output stream", |
| 1945 | EncryptStopOutput, 1, 0, 0 }, |
| 1946 | |
| 1947 | { "status", "Display current status of authentication information", |
| 1948 | EncryptStatus, 0, 0, 0 }, |
| 1949 | { "help", 0, EncryptHelp, 0, 0, 0 }, |
| 1950 | { "?", "Print help information", EncryptHelp, 0, 0, 0 }, |
| 1951 | { 0 }, |
| 1952 | }; |
| 1953 | |
| 1954 | static int |
| 1955 | EncryptHelp() |
| 1956 | { |
| 1957 | struct encryptlist *c; |
| 1958 | |
| 1959 | for (c = EncryptList; c->name; c++) { |
| 1960 | if (c->help) { |
| 1961 | if (*c->help) |
| 1962 | printf("%-15s %s\n", c->name, c->help); |
| 1963 | else |
| 1964 | printf("\n"); |
| 1965 | } |
| 1966 | } |
| 1967 | return 0; |
| 1968 | } |
| 1969 | |
| 1970 | encrypt_cmd(argc, argv) |
| 1971 | int argc; |
| 1972 | char *argv[]; |
| 1973 | { |
| 1974 | struct encryptlist *c; |
| 1975 | |
| 1976 | c = (struct encryptlist *) |
| 1977 | genget(argv[1], (char **) EncryptList, sizeof(struct encryptlist)); |
| 1978 | if (c == 0) { |
| 1979 | fprintf(stderr, "'%s': unknown argument ('encrypt ?' for help).\n", |
| 1980 | argv[1]); |
| 1981 | return 0; |
| 1982 | } |
| 1983 | if (Ambiguous(c)) { |
| 1984 | fprintf(stderr, "'%s': ambiguous argument ('encrypt ?' for help).\n", |
| 1985 | argv[1]); |
| 1986 | return 0; |
| 1987 | } |
| 1988 | argc -= 2; |
| 1989 | if (argc < c->minarg || argc > c->maxarg) { |
| 1990 | if (c->minarg == c->maxarg) { |
| 1991 | fprintf(stderr, "Need %s%d argument%s ", |
| 1992 | c->minarg < argc ? "only " : "", c->minarg, |
| 1993 | c->minarg == 1 ? "" : "s"); |
| 1994 | } else { |
| 1995 | fprintf(stderr, "Need %s%d-%d arguments ", |
| 1996 | c->maxarg < argc ? "only " : "", c->minarg, c->maxarg); |
| 1997 | } |
| 1998 | fprintf(stderr, "to 'encrypt %s' command. 'encrypt ?' for help.\n", |
| 1999 | c->name); |
| 2000 | return 0; |
| 2001 | } |
| 2002 | if (c->needconnect && !connected) { |
| 2003 | if (!(argc && (isprefix(argv[2], "help") || isprefix(argv[2], "?")))) { |
| 2004 | printf("?Need to be connected first.\n"); |
| 2005 | return 0; |
| 2006 | } |
| 2007 | } |
| 2008 | return ((*c->handler)(argc > 0 ? argv[2] : 0, |
| 2009 | argc > 1 ? argv[3] : 0, |
| 2010 | argc > 2 ? argv[4] : 0)); |
| 2011 | } |
| 2012 | #endif |
| 2013 | |
| 2014 | #if defined(unix) && defined(TN3270) |
| 2015 | char *oflgs[] = { "read-only", "write-only", "read-write" }; |
| 2016 | static void |
| 2017 | filestuff(fd) |
| 2018 | int fd; |
| 2019 | { |
| 2020 | int res; |
| 2021 | |
| 2022 | #ifdef F_GETOWN |
| 2023 | setconnmode(0); |
| 2024 | res = fcntl(fd, F_GETOWN, 0); |
| 2025 | setcommandmode(); |
| 2026 | |
| 2027 | if (res == -1) { |
| 2028 | perror("fcntl"); |
| 2029 | return; |
| 2030 | } |
| 2031 | printf("\tOwner is %d.\n", res); |
| 2032 | #endif |
| 2033 | |
| 2034 | setconnmode(0); |
| 2035 | res = fcntl(fd, F_GETFL, 0); |
| 2036 | setcommandmode(); |
| 2037 | |
| 2038 | if (res == -1) { |
| 2039 | perror("fcntl"); |
| 2040 | return; |
| 2041 | } |
| 2042 | printf("\tFlags are 0x%x: %s\n", res, oflgs[res]); |
| 2043 | } |
| 2044 | #endif /* defined(unix) && defined(TN3270) */ |
| 2045 | |
| 2046 | /* |
| 2047 | * Print status about the connection. |
| 2048 | */ |
| 2049 | /*ARGSUSED*/ |
| 2050 | static |
| 2051 | status(argc, argv) |
| 2052 | int argc; |
| 2053 | char *argv[]; |
| 2054 | { |
| 2055 | if (connected) { |
| 2056 | printf("Connected to %s.\n", hostname); |
| 2057 | if ((argc < 2) || strcmp(argv[1], "notmuch")) { |
| 2058 | int mode = getconnmode(); |
| 2059 | |
| 2060 | if (my_want_state_is_will(TELOPT_LINEMODE)) { |
| 2061 | printf("Operating with LINEMODE option\n"); |
| 2062 | printf("%s line editing\n", (mode&MODE_EDIT) ? "Local" : "No"); |
| 2063 | printf("%s catching of signals\n", |
| 2064 | (mode&MODE_TRAPSIG) ? "Local" : "No"); |
| 2065 | slcstate(); |
| 2066 | #ifdef KLUDGELINEMODE |
| 2067 | } else if (kludgelinemode && my_want_state_is_dont(TELOPT_SGA)) { |
| 2068 | printf("Operating in obsolete linemode\n"); |
| 2069 | #endif |
| 2070 | } else { |
| 2071 | printf("Operating in single character mode\n"); |
| 2072 | if (localchars) |
| 2073 | printf("Catching signals locally\n"); |
| 2074 | } |
| 2075 | printf("%s character echo\n", (mode&MODE_ECHO) ? "Local" : "Remote"); |
| 2076 | if (my_want_state_is_will(TELOPT_LFLOW)) |
| 2077 | printf("%s flow control\n", (mode&MODE_FLOW) ? "Local" : "No"); |
| 2078 | #if defined(ENCRYPT) |
| 2079 | encrypt_display(); |
| 2080 | #endif |
| 2081 | } |
| 2082 | } else { |
| 2083 | printf("No connection.\n"); |
| 2084 | } |
| 2085 | # if !defined(TN3270) |
| 2086 | printf("Escape character is '%s'.\n", control(escape)); |
| 2087 | (void) fflush(stdout); |
| 2088 | # else /* !defined(TN3270) */ |
| 2089 | if ((!In3270) && ((argc < 2) || strcmp(argv[1], "notmuch"))) { |
| 2090 | printf("Escape character is '%s'.\n", control(escape)); |
| 2091 | } |
| 2092 | # if defined(unix) |
| 2093 | if ((argc >= 2) && !strcmp(argv[1], "everything")) { |
| 2094 | printf("SIGIO received %d time%s.\n", |
| 2095 | sigiocount, (sigiocount == 1)? "":"s"); |
| 2096 | if (In3270) { |
| 2097 | printf("Process ID %d, process group %d.\n", |
| 2098 | getpid(), getpgrp(getpid())); |
| 2099 | printf("Terminal input:\n"); |
| 2100 | filestuff(tin); |
| 2101 | printf("Terminal output:\n"); |
| 2102 | filestuff(tout); |
| 2103 | printf("Network socket:\n"); |
| 2104 | filestuff(net); |
| 2105 | } |
| 2106 | } |
| 2107 | if (In3270 && transcom) { |
| 2108 | printf("Transparent mode command is '%s'.\n", transcom); |
| 2109 | } |
| 2110 | # endif /* defined(unix) */ |
| 2111 | (void) fflush(stdout); |
| 2112 | if (In3270) { |
| 2113 | return 0; |
| 2114 | } |
| 2115 | # endif /* defined(TN3270) */ |
| 2116 | return 1; |
| 2117 | } |
| 2118 | |
| 2119 | #ifdef SIGINFO |
| 2120 | /* |
| 2121 | * Function that gets called when SIGINFO is received. |
| 2122 | */ |
| 2123 | ayt_status() |
| 2124 | { |
| 2125 | (void) call(status, "status", "notmuch", 0); |
| 2126 | } |
| 2127 | #endif |
| 2128 | |
| 2129 | int |
| 2130 | tn(argc, argv) |
| 2131 | int argc; |
| 2132 | char *argv[]; |
| 2133 | { |
| 2134 | register struct hostent *host = 0; |
| 2135 | struct sockaddr_in sin; |
| 2136 | struct servent *sp = 0; |
| 2137 | unsigned long temp, inet_addr(); |
| 2138 | extern char *inet_ntoa(); |
| 2139 | #if defined(IP_OPTIONS) && defined(IPPROTO_IP) |
| 2140 | char *srp = 0, *strrchr(); |
| 2141 | unsigned long sourceroute(), srlen; |
| 2142 | #endif |
| 2143 | char *cmd, *hostp = 0, *portp = 0, *user = 0; |
| 2144 | |
| 2145 | /* clear the socket address prior to use */ |
| 2146 | bzero((char *)&sin, sizeof(sin)); |
| 2147 | |
| 2148 | if (connected) { |
| 2149 | printf("?Already connected to %s\n", hostname); |
| 2150 | setuid(getuid()); |
| 2151 | return 0; |
| 2152 | } |
| 2153 | if (argc < 2) { |
| 2154 | (void) strcpy(line, "open "); |
| 2155 | printf("(to) "); |
| 2156 | (void) fgets(&line[strlen(line)], sizeof(line) - strlen(line), stdin); |
| 2157 | makeargv(); |
| 2158 | argc = margc; |
| 2159 | argv = margv; |
| 2160 | } |
| 2161 | cmd = *argv; |
| 2162 | --argc; ++argv; |
| 2163 | while (argc) { |
| 2164 | if (isprefix(*argv, "help") || isprefix(*argv, "?")) |
| 2165 | goto usage; |
| 2166 | if (strcmp(*argv, "-l") == 0) { |
| 2167 | --argc; ++argv; |
| 2168 | if (argc == 0) |
| 2169 | goto usage; |
| 2170 | user = *argv++; |
| 2171 | --argc; |
| 2172 | continue; |
| 2173 | } |
| 2174 | if (strcmp(*argv, "-a") == 0) { |
| 2175 | --argc; ++argv; |
| 2176 | autologin = 1; |
| 2177 | continue; |
| 2178 | } |
| 2179 | if (hostp == 0) { |
| 2180 | hostp = *argv++; |
| 2181 | --argc; |
| 2182 | continue; |
| 2183 | } |
| 2184 | if (portp == 0) { |
| 2185 | portp = *argv++; |
| 2186 | --argc; |
| 2187 | continue; |
| 2188 | } |
| 2189 | usage: |
| 2190 | printf("usage: %s [-l user] [-a] host-name [port]\n", cmd); |
| 2191 | setuid(getuid()); |
| 2192 | return 0; |
| 2193 | } |
| 2194 | if (hostp == 0) |
| 2195 | goto usage; |
| 2196 | |
| 2197 | #if defined(IP_OPTIONS) && defined(IPPROTO_IP) |
| 2198 | if (hostp[0] == '@' || hostp[0] == '!') { |
| 2199 | if ((hostname = strrchr(hostp, ':')) == NULL) |
| 2200 | hostname = strrchr(hostp, '@'); |
| 2201 | hostname++; |
| 2202 | srp = 0; |
| 2203 | temp = sourceroute(hostp, &srp, &srlen); |
| 2204 | if (temp == 0) { |
| 2205 | herror(srp); |
| 2206 | setuid(getuid()); |
| 2207 | return 0; |
| 2208 | } else if (temp == -1) { |
| 2209 | printf("Bad source route option: %s\n", hostp); |
| 2210 | setuid(getuid()); |
| 2211 | return 0; |
| 2212 | } else { |
| 2213 | sin.sin_addr.s_addr = temp; |
| 2214 | sin.sin_family = AF_INET; |
| 2215 | } |
| 2216 | } else { |
| 2217 | #endif |
| 2218 | temp = inet_addr(hostp); |
| 2219 | if (temp != (unsigned long) -1) { |
| 2220 | sin.sin_addr.s_addr = temp; |
| 2221 | sin.sin_family = AF_INET; |
| 2222 | (void) strcpy(_hostname, hostp); |
| 2223 | hostname = _hostname; |
| 2224 | } else { |
| 2225 | host = gethostbyname(hostp); |
| 2226 | if (host) { |
| 2227 | sin.sin_family = host->h_addrtype; |
| 2228 | #if defined(h_addr) /* In 4.3, this is a #define */ |
| 2229 | memcpy((caddr_t)&sin.sin_addr, |
| 2230 | host->h_addr_list[0], host->h_length); |
| 2231 | #else /* defined(h_addr) */ |
| 2232 | memcpy((caddr_t)&sin.sin_addr, host->h_addr, host->h_length); |
| 2233 | #endif /* defined(h_addr) */ |
| 2234 | strncpy(_hostname, host->h_name, sizeof(_hostname)); |
| 2235 | _hostname[sizeof(_hostname)-1] = '\0'; |
| 2236 | hostname = _hostname; |
| 2237 | } else { |
| 2238 | herror(hostp); |
| 2239 | setuid(getuid()); |
| 2240 | return 0; |
| 2241 | } |
| 2242 | } |
| 2243 | #if defined(IP_OPTIONS) && defined(IPPROTO_IP) |
| 2244 | } |
| 2245 | #endif |
| 2246 | if (portp) { |
| 2247 | if (*portp == '-') { |
| 2248 | portp++; |
| 2249 | telnetport = 1; |
| 2250 | } else |
| 2251 | telnetport = 0; |
| 2252 | sin.sin_port = atoi(portp); |
| 2253 | if (sin.sin_port == 0) { |
| 2254 | sp = getservbyname(portp, "tcp"); |
| 2255 | if (sp) |
| 2256 | sin.sin_port = sp->s_port; |
| 2257 | else { |
| 2258 | printf("%s: bad port number\n", portp); |
| 2259 | setuid(getuid()); |
| 2260 | return 0; |
| 2261 | } |
| 2262 | } else { |
| 2263 | #if !defined(htons) |
| 2264 | u_short htons(); |
| 2265 | #endif /* !defined(htons) */ |
| 2266 | sin.sin_port = htons(sin.sin_port); |
| 2267 | } |
| 2268 | } else { |
| 2269 | if (sp == 0) { |
| 2270 | sp = getservbyname("telnet", "tcp"); |
| 2271 | if (sp == 0) { |
| 2272 | fprintf(stderr, "telnet: tcp/telnet: unknown service\n"); |
| 2273 | setuid(getuid()); |
| 2274 | return 0; |
| 2275 | } |
| 2276 | sin.sin_port = sp->s_port; |
| 2277 | } |
| 2278 | telnetport = 1; |
| 2279 | } |
| 2280 | printf("Trying %s...\n", inet_ntoa(sin.sin_addr)); |
| 2281 | do { |
| 2282 | net = socket(AF_INET, SOCK_STREAM, 0); |
| 2283 | setuid(getuid()); |
| 2284 | if (net < 0) { |
| 2285 | perror("telnet: socket"); |
| 2286 | return 0; |
| 2287 | } |
| 2288 | #if defined(IP_OPTIONS) && defined(IPPROTO_IP) |
| 2289 | if (srp && setsockopt(net, IPPROTO_IP, IP_OPTIONS, (char *)srp, srlen) < 0) |
| 2290 | perror("setsockopt (IP_OPTIONS)"); |
| 2291 | #endif |
| 2292 | #if defined(IPPROTO_IP) && defined(IP_TOS) |
| 2293 | { |
| 2294 | # if defined(HAS_GETTOS) |
| 2295 | struct tosent *tp; |
| 2296 | if (tos < 0 && (tp = gettosbyname("telnet", "tcp"))) |
| 2297 | tos = tp->t_tos; |
| 2298 | # endif |
| 2299 | if (tos < 0) |
| 2300 | tos = 020; /* Low Delay bit */ |
| 2301 | if (tos |
| 2302 | && (setsockopt(net, IPPROTO_IP, IP_TOS, &tos, sizeof(int)) < 0) |
| 2303 | && (errno != ENOPROTOOPT)) |
| 2304 | perror("telnet: setsockopt (IP_TOS) (ignored)"); |
| 2305 | } |
| 2306 | #endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ |
| 2307 | |
| 2308 | if (debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) { |
| 2309 | perror("setsockopt (SO_DEBUG)"); |
| 2310 | } |
| 2311 | |
| 2312 | if (connect(net, (struct sockaddr *)&sin, sizeof (sin)) < 0) { |
| 2313 | #if defined(h_addr) /* In 4.3, this is a #define */ |
| 2314 | if (host && host->h_addr_list[1]) { |
| 2315 | int oerrno = errno; |
| 2316 | |
| 2317 | fprintf(stderr, "telnet: connect to address %s: ", |
| 2318 | inet_ntoa(sin.sin_addr)); |
| 2319 | errno = oerrno; |
| 2320 | perror((char *)0); |
| 2321 | host->h_addr_list++; |
| 2322 | memcpy((caddr_t)&sin.sin_addr, |
| 2323 | host->h_addr_list[0], host->h_length); |
| 2324 | (void) NetClose(net); |
| 2325 | continue; |
| 2326 | } |
| 2327 | #endif /* defined(h_addr) */ |
| 2328 | perror("telnet: Unable to connect to remote host"); |
| 2329 | return 0; |
| 2330 | } |
| 2331 | connected++; |
| 2332 | #if defined(AUTHENTICATE) || defined(ENCRYPT) |
| 2333 | auth_encrypt_connect(connected); |
| 2334 | #endif |
| 2335 | } while (connected == 0); |
| 2336 | cmdrc(hostp, hostname); |
| 2337 | if (autologin && user == NULL) { |
| 2338 | struct passwd *pw; |
| 2339 | |
| 2340 | user = getenv("USER"); |
| 2341 | if (user == NULL || |
| 2342 | (pw = getpwnam(user)) && pw->pw_uid != getuid()) { |
| 2343 | if (pw = getpwuid(getuid())) |
| 2344 | user = pw->pw_name; |
| 2345 | else |
| 2346 | user = NULL; |
| 2347 | } |
| 2348 | } |
| 2349 | if (user) { |
| 2350 | env_define((unsigned char *)"USER", (unsigned char *)user); |
| 2351 | env_export((unsigned char *)"USER"); |
| 2352 | } |
| 2353 | (void) call(status, "status", "notmuch", 0); |
| 2354 | if (setjmp(peerdied) == 0) |
| 2355 | telnet(user); |
| 2356 | (void) NetClose(net); |
| 2357 | ExitString("Connection closed by foreign host.\n",1); |
| 2358 | /*NOTREACHED*/ |
| 2359 | } |
| 2360 | |
| 2361 | #define HELPINDENT (sizeof ("connect")) |
| 2362 | |
| 2363 | static char |
| 2364 | openhelp[] = "connect to a site", |
| 2365 | closehelp[] = "close current connection", |
| 2366 | logouthelp[] = "forcibly logout remote user and close the connection", |
| 2367 | quithelp[] = "exit telnet", |
| 2368 | statushelp[] = "print status information", |
| 2369 | helphelp[] = "print help information", |
| 2370 | sendhelp[] = "transmit special characters ('send ?' for more)", |
| 2371 | sethelp[] = "set operating parameters ('set ?' for more)", |
| 2372 | unsethelp[] = "unset operating parameters ('unset ?' for more)", |
| 2373 | togglestring[] ="toggle operating parameters ('toggle ?' for more)", |
| 2374 | slchelp[] = "change state of special charaters ('slc ?' for more)", |
| 2375 | displayhelp[] = "display operating parameters", |
| 2376 | #if defined(TN3270) && defined(unix) |
| 2377 | transcomhelp[] = "specify Unix command for transparent mode pipe", |
| 2378 | #endif /* defined(TN3270) && defined(unix) */ |
| 2379 | #if defined(AUTHENTICATE) |
| 2380 | authhelp[] = "turn on (off) authentication ('auth ?' for more)", |
| 2381 | #endif |
| 2382 | #if defined(ENCRYPT) |
| 2383 | encrypthelp[] = "turn on (off) encryption ('encrypt ?' for more)", |
| 2384 | #endif |
| 2385 | #if defined(unix) |
| 2386 | zhelp[] = "suspend telnet", |
| 2387 | #endif /* defined(unix) */ |
| 2388 | shellhelp[] = "invoke a subshell", |
| 2389 | envhelp[] = "change environment variables ('environ ?' for more)", |
| 2390 | modestring[] = "try to enter line or character mode ('mode ?' for more)"; |
| 2391 | |
| 2392 | extern int help(); |
| 2393 | |
| 2394 | static Command cmdtab[] = { |
| 2395 | { "close", closehelp, bye, 1 }, |
| 2396 | { "logout", logouthelp, logout, 1 }, |
| 2397 | { "display", displayhelp, display, 0 }, |
| 2398 | { "mode", modestring, modecmd, 0 }, |
| 2399 | { "open", openhelp, tn, 0 }, |
| 2400 | { "quit", quithelp, quit, 0 }, |
| 2401 | { "send", sendhelp, sendcmd, 0 }, |
| 2402 | { "set", sethelp, setcmd, 0 }, |
| 2403 | { "unset", unsethelp, unsetcmd, 0 }, |
| 2404 | { "status", statushelp, status, 0 }, |
| 2405 | { "toggle", togglestring, toggle, 0 }, |
| 2406 | { "slc", slchelp, slccmd, 0 }, |
| 2407 | #if defined(TN3270) && defined(unix) |
| 2408 | { "transcom", transcomhelp, settranscom, 0 }, |
| 2409 | #endif /* defined(TN3270) && defined(unix) */ |
| 2410 | #if defined(AUTHENTICATE) |
| 2411 | { "auth", authhelp, auth_cmd, 0 }, |
| 2412 | #endif |
| 2413 | #if defined(ENCRYPT) |
| 2414 | { "encrypt", encrypthelp, encrypt_cmd, 0 }, |
| 2415 | #endif |
| 2416 | #if defined(unix) |
| 2417 | { "z", zhelp, suspend, 0 }, |
| 2418 | #endif /* defined(unix) */ |
| 2419 | #if defined(TN3270) |
| 2420 | { "!", shellhelp, shell, 1 }, |
| 2421 | #else |
| 2422 | { "!", shellhelp, shell, 0 }, |
| 2423 | #endif |
| 2424 | { "environ", envhelp, env_cmd, 0 }, |
| 2425 | { "?", helphelp, help, 0 }, |
| 2426 | 0 |
| 2427 | }; |
| 2428 | |
| 2429 | static char crmodhelp[] = "deprecated command -- use 'toggle crmod' instead"; |
| 2430 | static char escapehelp[] = "deprecated command -- use 'set escape' instead"; |
| 2431 | |
| 2432 | static Command cmdtab2[] = { |
| 2433 | { "help", 0, help, 0 }, |
| 2434 | { "escape", escapehelp, setescape, 0 }, |
| 2435 | { "crmod", crmodhelp, togcrmod, 0 }, |
| 2436 | 0 |
| 2437 | }; |
| 2438 | |
| 2439 | |
| 2440 | /* |
| 2441 | * Call routine with argc, argv set from args (terminated by 0). |
| 2442 | */ |
| 2443 | |
| 2444 | /*VARARGS1*/ |
| 2445 | static |
| 2446 | call(va_alist) |
| 2447 | va_dcl |
| 2448 | { |
| 2449 | va_list ap; |
| 2450 | typedef int (*intrtn_t)(); |
| 2451 | intrtn_t routine; |
| 2452 | char *args[100]; |
| 2453 | int argno = 0; |
| 2454 | |
| 2455 | va_start(ap); |
| 2456 | routine = (va_arg(ap, intrtn_t)); |
| 2457 | while ((args[argno++] = va_arg(ap, char *)) != 0) { |
| 2458 | ; |
| 2459 | } |
| 2460 | va_end(ap); |
| 2461 | return (*routine)(argno-1, args); |
| 2462 | } |
| 2463 | |
| 2464 | |
| 2465 | static Command * |
| 2466 | getcmd(name) |
| 2467 | char *name; |
| 2468 | { |
| 2469 | Command *cm; |
| 2470 | |
| 2471 | if (cm = (Command *) genget(name, (char **) cmdtab, sizeof(Command))) |
| 2472 | return cm; |
| 2473 | return (Command *) genget(name, (char **) cmdtab2, sizeof(Command)); |
| 2474 | } |
| 2475 | |
| 2476 | void |
| 2477 | command(top, tbuf, cnt) |
| 2478 | int top; |
| 2479 | char *tbuf; |
| 2480 | int cnt; |
| 2481 | { |
| 2482 | register Command *c; |
| 2483 | |
| 2484 | setcommandmode(); |
| 2485 | if (!top) { |
| 2486 | putchar('\n'); |
| 2487 | #if defined(unix) |
| 2488 | } else { |
| 2489 | (void) signal(SIGINT, SIG_DFL); |
| 2490 | (void) signal(SIGQUIT, SIG_DFL); |
| 2491 | #endif /* defined(unix) */ |
| 2492 | } |
| 2493 | for (;;) { |
| 2494 | if (rlogin == _POSIX_VDISABLE) |
| 2495 | printf("%s> ", prompt); |
| 2496 | if (tbuf) { |
| 2497 | register char *cp; |
| 2498 | cp = line; |
| 2499 | while (cnt > 0 && (*cp++ = *tbuf++) != '\n') |
| 2500 | cnt--; |
| 2501 | tbuf = 0; |
| 2502 | if (cp == line || *--cp != '\n' || cp == line) |
| 2503 | goto getline; |
| 2504 | *cp = '\0'; |
| 2505 | if (rlogin == _POSIX_VDISABLE) |
| 2506 | printf("%s\n", line); |
| 2507 | } else { |
| 2508 | getline: |
| 2509 | if (rlogin != _POSIX_VDISABLE) |
| 2510 | printf("%s> ", prompt); |
| 2511 | if (fgets(line, sizeof(line), stdin) == NULL) { |
| 2512 | if (feof(stdin) || ferror(stdin)) { |
| 2513 | (void) quit(); |
| 2514 | /*NOTREACHED*/ |
| 2515 | } |
| 2516 | break; |
| 2517 | } |
| 2518 | } |
| 2519 | if (line[0] == 0) |
| 2520 | break; |
| 2521 | makeargv(); |
| 2522 | if (margv[0] == 0) { |
| 2523 | break; |
| 2524 | } |
| 2525 | c = getcmd(margv[0]); |
| 2526 | if (Ambiguous(c)) { |
| 2527 | printf("?Ambiguous command\n"); |
| 2528 | continue; |
| 2529 | } |
| 2530 | if (c == 0) { |
| 2531 | printf("?Invalid command\n"); |
| 2532 | continue; |
| 2533 | } |
| 2534 | if (c->needconnect && !connected) { |
| 2535 | printf("?Need to be connected first.\n"); |
| 2536 | continue; |
| 2537 | } |
| 2538 | if ((*c->handler)(margc, margv)) { |
| 2539 | break; |
| 2540 | } |
| 2541 | } |
| 2542 | if (!top) { |
| 2543 | if (!connected) { |
| 2544 | longjmp(toplevel, 1); |
| 2545 | /*NOTREACHED*/ |
| 2546 | } |
| 2547 | #if defined(TN3270) |
| 2548 | if (shell_active == 0) { |
| 2549 | setconnmode(0); |
| 2550 | } |
| 2551 | #else /* defined(TN3270) */ |
| 2552 | setconnmode(0); |
| 2553 | #endif /* defined(TN3270) */ |
| 2554 | } |
| 2555 | } |
| 2556 | \f |
| 2557 | /* |
| 2558 | * Help command. |
| 2559 | */ |
| 2560 | static |
| 2561 | help(argc, argv) |
| 2562 | int argc; |
| 2563 | char *argv[]; |
| 2564 | { |
| 2565 | register Command *c; |
| 2566 | |
| 2567 | if (argc == 1) { |
| 2568 | printf("Commands may be abbreviated. Commands are:\n\n"); |
| 2569 | for (c = cmdtab; c->name; c++) |
| 2570 | if (c->help) { |
| 2571 | printf("%-*s\t%s\n", HELPINDENT, c->name, |
| 2572 | c->help); |
| 2573 | } |
| 2574 | return 0; |
| 2575 | } |
| 2576 | while (--argc > 0) { |
| 2577 | register char *arg; |
| 2578 | arg = *++argv; |
| 2579 | c = getcmd(arg); |
| 2580 | if (Ambiguous(c)) |
| 2581 | printf("?Ambiguous help command %s\n", arg); |
| 2582 | else if (c == (Command *)0) |
| 2583 | printf("?Invalid help command %s\n", arg); |
| 2584 | else |
| 2585 | printf("%s\n", c->help); |
| 2586 | } |
| 2587 | return 0; |
| 2588 | } |
| 2589 | |
| 2590 | static char *rcname = 0; |
| 2591 | static char rcbuf[128]; |
| 2592 | |
| 2593 | cmdrc(m1, m2) |
| 2594 | char *m1, *m2; |
| 2595 | { |
| 2596 | register Command *c; |
| 2597 | FILE *rcfile; |
| 2598 | int gotmachine = 0; |
| 2599 | int l1 = strlen(m1); |
| 2600 | int l2 = strlen(m2); |
| 2601 | char m1save[64]; |
| 2602 | |
| 2603 | if (skiprc) |
| 2604 | return; |
| 2605 | |
| 2606 | strcpy(m1save, m1); |
| 2607 | m1 = m1save; |
| 2608 | |
| 2609 | if (rcname == 0) { |
| 2610 | rcname = getenv("HOME"); |
| 2611 | if (rcname) |
| 2612 | strcpy(rcbuf, rcname); |
| 2613 | else |
| 2614 | rcbuf[0] = '\0'; |
| 2615 | strcat(rcbuf, "/.telnetrc"); |
| 2616 | rcname = rcbuf; |
| 2617 | } |
| 2618 | |
| 2619 | if ((rcfile = fopen(rcname, "r")) == 0) { |
| 2620 | return; |
| 2621 | } |
| 2622 | |
| 2623 | for (;;) { |
| 2624 | if (fgets(line, sizeof(line), rcfile) == NULL) |
| 2625 | break; |
| 2626 | if (line[0] == 0) |
| 2627 | break; |
| 2628 | if (line[0] == '#') |
| 2629 | continue; |
| 2630 | if (gotmachine) { |
| 2631 | if (!isspace(line[0])) |
| 2632 | gotmachine = 0; |
| 2633 | } |
| 2634 | if (gotmachine == 0) { |
| 2635 | if (isspace(line[0])) |
| 2636 | continue; |
| 2637 | if (strncasecmp(line, m1, l1) == 0) |
| 2638 | strncpy(line, &line[l1], sizeof(line) - l1); |
| 2639 | else if (strncasecmp(line, m2, l2) == 0) |
| 2640 | strncpy(line, &line[l2], sizeof(line) - l2); |
| 2641 | else if (strncasecmp(line, "DEFAULT", 7) == 0) |
| 2642 | strncpy(line, &line[7], sizeof(line) - 7); |
| 2643 | else |
| 2644 | continue; |
| 2645 | if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n') |
| 2646 | continue; |
| 2647 | gotmachine = 1; |
| 2648 | } |
| 2649 | makeargv(); |
| 2650 | if (margv[0] == 0) |
| 2651 | continue; |
| 2652 | c = getcmd(margv[0]); |
| 2653 | if (Ambiguous(c)) { |
| 2654 | printf("?Ambiguous command: %s\n", margv[0]); |
| 2655 | continue; |
| 2656 | } |
| 2657 | if (c == 0) { |
| 2658 | printf("?Invalid command: %s\n", margv[0]); |
| 2659 | continue; |
| 2660 | } |
| 2661 | /* |
| 2662 | * This should never happen... |
| 2663 | */ |
| 2664 | if (c->needconnect && !connected) { |
| 2665 | printf("?Need to be connected first for %s.\n", margv[0]); |
| 2666 | continue; |
| 2667 | } |
| 2668 | (*c->handler)(margc, margv); |
| 2669 | } |
| 2670 | fclose(rcfile); |
| 2671 | } |
| 2672 | |
| 2673 | #if defined(IP_OPTIONS) && defined(IPPROTO_IP) |
| 2674 | |
| 2675 | /* |
| 2676 | * Source route is handed in as |
| 2677 | * [!]@hop1@hop2...[@|:]dst |
| 2678 | * If the leading ! is present, it is a |
| 2679 | * strict source route, otherwise it is |
| 2680 | * assmed to be a loose source route. |
| 2681 | * |
| 2682 | * We fill in the source route option as |
| 2683 | * hop1,hop2,hop3...dest |
| 2684 | * and return a pointer to hop1, which will |
| 2685 | * be the address to connect() to. |
| 2686 | * |
| 2687 | * Arguments: |
| 2688 | * arg: pointer to route list to decipher |
| 2689 | * |
| 2690 | * cpp: If *cpp is not equal to NULL, this is a |
| 2691 | * pointer to a pointer to a character array |
| 2692 | * that should be filled in with the option. |
| 2693 | * |
| 2694 | * lenp: pointer to an integer that contains the |
| 2695 | * length of *cpp if *cpp != NULL. |
| 2696 | * |
| 2697 | * Return values: |
| 2698 | * |
| 2699 | * Returns the address of the host to connect to. If the |
| 2700 | * return value is -1, there was a syntax error in the |
| 2701 | * option, either unknown characters, or too many hosts. |
| 2702 | * If the return value is 0, one of the hostnames in the |
| 2703 | * path is unknown, and *cpp is set to point to the bad |
| 2704 | * hostname. |
| 2705 | * |
| 2706 | * *cpp: If *cpp was equal to NULL, it will be filled |
| 2707 | * in with a pointer to our static area that has |
| 2708 | * the option filled in. This will be 32bit aligned. |
| 2709 | * |
| 2710 | * *lenp: This will be filled in with how long the option |
| 2711 | * pointed to by *cpp is. |
| 2712 | * |
| 2713 | */ |
| 2714 | unsigned long |
| 2715 | sourceroute(arg, cpp, lenp) |
| 2716 | char *arg; |
| 2717 | char **cpp; |
| 2718 | int *lenp; |
| 2719 | { |
| 2720 | static char lsr[44]; |
| 2721 | char *cp, *cp2, *lsrp, *lsrep; |
| 2722 | register int tmp; |
| 2723 | struct in_addr sin_addr; |
| 2724 | register struct hostent *host = 0; |
| 2725 | register char c; |
| 2726 | |
| 2727 | /* |
| 2728 | * Verify the arguments, and make sure we have |
| 2729 | * at least 7 bytes for the option. |
| 2730 | */ |
| 2731 | if (cpp == NULL || lenp == NULL) |
| 2732 | return((unsigned long)-1); |
| 2733 | if (*cpp != NULL && *lenp < 7) |
| 2734 | return((unsigned long)-1); |
| 2735 | /* |
| 2736 | * Decide whether we have a buffer passed to us, |
| 2737 | * or if we need to use our own static buffer. |
| 2738 | */ |
| 2739 | if (*cpp) { |
| 2740 | lsrp = *cpp; |
| 2741 | lsrep = lsrp + *lenp; |
| 2742 | } else { |
| 2743 | *cpp = lsrp = lsr; |
| 2744 | lsrep = lsrp + 44; |
| 2745 | } |
| 2746 | |
| 2747 | cp = arg; |
| 2748 | |
| 2749 | /* |
| 2750 | * Next, decide whether we have a loose source |
| 2751 | * route or a strict source route, and fill in |
| 2752 | * the begining of the option. |
| 2753 | */ |
| 2754 | if (*cp == '!') { |
| 2755 | cp++; |
| 2756 | *lsrp++ = IPOPT_SSRR; |
| 2757 | } else |
| 2758 | *lsrp++ = IPOPT_LSRR; |
| 2759 | |
| 2760 | if (*cp != '@') |
| 2761 | return((unsigned long)-1); |
| 2762 | |
| 2763 | lsrp++; /* skip over length, we'll fill it in later */ |
| 2764 | *lsrp++ = 4; |
| 2765 | |
| 2766 | cp++; |
| 2767 | |
| 2768 | sin_addr.s_addr = 0; |
| 2769 | |
| 2770 | for (c = 0;;) { |
| 2771 | if (c == ':') |
| 2772 | cp2 = 0; |
| 2773 | else for (cp2 = cp; c = *cp2; cp2++) { |
| 2774 | if (c == ',') { |
| 2775 | *cp2++ = '\0'; |
| 2776 | if (*cp2 == '@') |
| 2777 | cp2++; |
| 2778 | } else if (c == '@') { |
| 2779 | *cp2++ = '\0'; |
| 2780 | } else if (c == ':') { |
| 2781 | *cp2++ = '\0'; |
| 2782 | } else |
| 2783 | continue; |
| 2784 | break; |
| 2785 | } |
| 2786 | if (!c) |
| 2787 | cp2 = 0; |
| 2788 | |
| 2789 | if ((tmp = inet_addr(cp)) != -1) { |
| 2790 | sin_addr.s_addr = tmp; |
| 2791 | } else if (host = gethostbyname(cp)) { |
| 2792 | #if defined(h_addr) |
| 2793 | memcpy((caddr_t)&sin_addr, |
| 2794 | host->h_addr_list[0], host->h_length); |
| 2795 | #else |
| 2796 | memcpy((caddr_t)&sin_addr, host->h_addr, host->h_length); |
| 2797 | #endif |
| 2798 | } else { |
| 2799 | *cpp = cp; |
| 2800 | return(0); |
| 2801 | } |
| 2802 | memcpy(lsrp, (char *)&sin_addr, 4); |
| 2803 | lsrp += 4; |
| 2804 | if (cp2) |
| 2805 | cp = cp2; |
| 2806 | else |
| 2807 | break; |
| 2808 | /* |
| 2809 | * Check to make sure there is space for next address |
| 2810 | */ |
| 2811 | if (lsrp + 4 > lsrep) |
| 2812 | return((unsigned long)-1); |
| 2813 | } |
| 2814 | if ((*(*cpp+IPOPT_OLEN) = lsrp - *cpp) <= 7) { |
| 2815 | *cpp = 0; |
| 2816 | *lenp = 0; |
| 2817 | return((unsigned long)-1); |
| 2818 | } |
| 2819 | *lsrp++ = IPOPT_NOP; /* 32 bit word align it */ |
| 2820 | *lenp = lsrp - *cpp; |
| 2821 | return(sin_addr.s_addr); |
| 2822 | } |
| 2823 | #endif |