Commit | Line | Data |
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15637ed4 RG |
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 |