Commit | Line | Data |
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d0aeaf5a DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
0c5f72fb KB |
3 | * All rights reserved. |
4 | * | |
1c15e888 C |
5 | * Redistribution and use in source and binary forms are permitted provided |
6 | * that: (1) source distributions retain this entire copyright notice and | |
7 | * comment, and (2) distributions including binaries display the following | |
8 | * acknowledgement: ``This product includes software developed by the | |
9 | * University of California, Berkeley and its contributors'' in the | |
10 | * documentation or other materials provided with the distribution and in | |
11 | * all advertising materials mentioning features or use of this software. | |
12 | * Neither the name of the University nor the names of its contributors may | |
13 | * be used to endorse or promote products derived from this software without | |
14 | * specific prior written permission. | |
15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED | |
16 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF | |
17 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
d0aeaf5a DF |
18 | */ |
19 | ||
acfc7e9b | 20 | #ifndef lint |
1c15e888 | 21 | static char sccsid[] = "@(#)cmd3.c 5.24 (Berkeley) 6/25/90"; |
acfc7e9b | 22 | #endif /* not lint */ |
ca6bb034 KS |
23 | |
24 | #include "rcv.h" | |
ca6bb034 KS |
25 | |
26 | /* | |
27 | * Mail -- a mail program | |
28 | * | |
29 | * Still more user commands. | |
30 | */ | |
31 | ||
ca6bb034 KS |
32 | /* |
33 | * Process a shell escape by saving signals, ignoring signals, | |
34 | * and forking a sh -c | |
35 | */ | |
ca6bb034 KS |
36 | shell(str) |
37 | char *str; | |
38 | { | |
e62a1467 | 39 | sig_t sigint = signal(SIGINT, SIG_IGN); |
d33aa50d | 40 | char *shell; |
e8adee6e | 41 | char cmd[BUFSIZ]; |
ca6bb034 | 42 | |
d33aa50d | 43 | (void) strcpy(cmd, str); |
e8adee6e | 44 | if (bangexp(cmd) < 0) |
2ee3bce2 | 45 | return 1; |
d33aa50d | 46 | if ((shell = value("SHELL")) == NOSTR) |
435e8dff | 47 | shell = _PATH_CSHELL; |
d33aa50d EW |
48 | (void) run_command(shell, 0, -1, -1, "-c", cmd, NOSTR); |
49 | (void) signal(SIGINT, sigint); | |
ca6bb034 | 50 | printf("!\n"); |
d33aa50d | 51 | return 0; |
ca6bb034 KS |
52 | } |
53 | ||
54 | /* | |
55 | * Fork an interactive shell. | |
56 | */ | |
828615a1 | 57 | /*ARGSUSED*/ |
ca6bb034 KS |
58 | dosh(str) |
59 | char *str; | |
60 | { | |
e62a1467 | 61 | sig_t sigint = signal(SIGINT, SIG_IGN); |
d33aa50d | 62 | char *shell; |
828615a1 | 63 | |
d33aa50d | 64 | if ((shell = value("SHELL")) == NOSTR) |
435e8dff | 65 | shell = _PATH_CSHELL; |
d33aa50d EW |
66 | (void) run_command(shell, 0, -1, -1, NOSTR); |
67 | (void) signal(SIGINT, sigint); | |
ca6bb034 | 68 | putchar('\n'); |
d33aa50d | 69 | return 0; |
ca6bb034 KS |
70 | } |
71 | ||
e8adee6e KS |
72 | /* |
73 | * Expand the shell escape by expanding unescaped !'s into the | |
74 | * last issued command where possible. | |
75 | */ | |
76 | ||
77 | char lastbang[128]; | |
78 | ||
79 | bangexp(str) | |
80 | char *str; | |
81 | { | |
82 | char bangbuf[BUFSIZ]; | |
83 | register char *cp, *cp2; | |
84 | register int n; | |
85 | int changed = 0; | |
86 | ||
87 | cp = str; | |
88 | cp2 = bangbuf; | |
89 | n = BUFSIZ; | |
90 | while (*cp) { | |
91 | if (*cp == '!') { | |
92 | if (n < strlen(lastbang)) { | |
93 | overf: | |
94 | printf("Command buffer overflow\n"); | |
95 | return(-1); | |
96 | } | |
97 | changed++; | |
98 | strcpy(cp2, lastbang); | |
99 | cp2 += strlen(lastbang); | |
100 | n -= strlen(lastbang); | |
101 | cp++; | |
102 | continue; | |
103 | } | |
104 | if (*cp == '\\' && cp[1] == '!') { | |
105 | if (--n <= 1) | |
106 | goto overf; | |
107 | *cp2++ = '!'; | |
108 | cp += 2; | |
109 | changed++; | |
110 | } | |
111 | if (--n <= 1) | |
112 | goto overf; | |
113 | *cp2++ = *cp++; | |
114 | } | |
115 | *cp2 = 0; | |
116 | if (changed) { | |
117 | printf("!%s\n", bangbuf); | |
118 | fflush(stdout); | |
119 | } | |
120 | strcpy(str, bangbuf); | |
121 | strncpy(lastbang, bangbuf, 128); | |
122 | lastbang[127] = 0; | |
123 | return(0); | |
124 | } | |
125 | ||
ca6bb034 KS |
126 | /* |
127 | * Print out a nice help message from some file or another. | |
128 | */ | |
129 | ||
130 | help() | |
131 | { | |
132 | register c; | |
133 | register FILE *f; | |
134 | ||
07b0d286 | 135 | if ((f = Fopen(_PATH_HELP, "r")) == NULL) { |
435e8dff | 136 | perror(_PATH_HELP); |
ca6bb034 KS |
137 | return(1); |
138 | } | |
139 | while ((c = getc(f)) != EOF) | |
140 | putchar(c); | |
07b0d286 | 141 | Fclose(f); |
ca6bb034 KS |
142 | return(0); |
143 | } | |
144 | ||
145 | /* | |
146 | * Change user's working directory. | |
147 | */ | |
23464f86 EW |
148 | schdir(arglist) |
149 | char **arglist; | |
ca6bb034 | 150 | { |
23464f86 | 151 | char *cp; |
ca6bb034 | 152 | |
23464f86 | 153 | if (*arglist == NOSTR) |
ca6bb034 KS |
154 | cp = homedir; |
155 | else | |
23464f86 | 156 | if ((cp = expand(*arglist)) == NOSTR) |
ca6bb034 KS |
157 | return(1); |
158 | if (chdir(cp) < 0) { | |
159 | perror(cp); | |
160 | return(1); | |
161 | } | |
23464f86 | 162 | return 0; |
ca6bb034 KS |
163 | } |
164 | ||
397029be S |
165 | respond(msgvec) |
166 | int *msgvec; | |
167 | { | |
168 | if (value("Replyall") == NOSTR) | |
169 | return (_respond(msgvec)); | |
170 | else | |
171 | return (_Respond(msgvec)); | |
172 | } | |
173 | ||
ca6bb034 KS |
174 | /* |
175 | * Reply to a list of messages. Extract each name from the | |
176 | * message header and send them off to mail1() | |
177 | */ | |
397029be | 178 | _respond(msgvec) |
ca6bb034 KS |
179 | int *msgvec; |
180 | { | |
181 | struct message *mp; | |
828615a1 | 182 | char *cp, *rcv, *replyto; |
3d6f01e5 | 183 | char **ap; |
ca6bb034 KS |
184 | struct name *np; |
185 | struct header head; | |
ca6bb034 KS |
186 | |
187 | if (msgvec[1] != 0) { | |
188 | printf("Sorry, can't reply to multiple messages at once\n"); | |
189 | return(1); | |
190 | } | |
191 | mp = &message[msgvec[0] - 1]; | |
8225e7c3 | 192 | touch(mp); |
ca6bb034 | 193 | dot = mp; |
3d6f01e5 EW |
194 | if ((rcv = skin(hfield("from", mp))) == NOSTR) |
195 | rcv = skin(nameof(mp, 1)); | |
196 | if ((replyto = skin(hfield("reply-to", mp))) != NOSTR) | |
197 | np = extract(replyto, GTO); | |
198 | else if ((cp = skin(hfield("to", mp))) != NOSTR) | |
199 | np = extract(cp, GTO); | |
200 | else | |
201 | np = NIL; | |
202 | np = elide(np); | |
1c04ff22 KS |
203 | /* |
204 | * Delete my name from the reply list, | |
205 | * and with it, all my alternate names. | |
206 | */ | |
470c33f3 | 207 | np = delname(np, myname); |
7949d400 | 208 | if (altnames) |
1c04ff22 | 209 | for (ap = altnames; *ap; ap++) |
470c33f3 | 210 | np = delname(np, *ap); |
3d6f01e5 EW |
211 | if (np != NIL && replyto == NOSTR) |
212 | np = cat(np, extract(rcv, GTO)); | |
213 | else if (np == NIL) { | |
214 | if (replyto != NOSTR) | |
52984be9 | 215 | printf("Empty reply-to field -- replying to author\n"); |
3d6f01e5 | 216 | np = extract(rcv, GTO); |
52984be9 | 217 | } |
3d6f01e5 EW |
218 | head.h_to = np; |
219 | if ((head.h_subject = hfield("subject", mp)) == NOSTR) | |
ca6bb034 | 220 | head.h_subject = hfield("subj", mp); |
fc8872bb | 221 | head.h_subject = reedit(head.h_subject); |
3d6f01e5 EW |
222 | if (replyto == NOSTR && (cp = skin(hfield("cc", mp))) != NOSTR) { |
223 | np = elide(extract(cp, GCC)); | |
470c33f3 | 224 | np = delname(np, myname); |
3d6f01e5 EW |
225 | if (altnames != 0) |
226 | for (ap = altnames; *ap; ap++) | |
470c33f3 | 227 | np = delname(np, *ap); |
3d6f01e5 EW |
228 | head.h_cc = np; |
229 | } else | |
230 | head.h_cc = NIL; | |
231 | head.h_bcc = NIL; | |
232 | head.h_smopts = NIL; | |
233 | mail1(&head, 1); | |
ca6bb034 KS |
234 | return(0); |
235 | } | |
236 | ||
fc8872bb KS |
237 | /* |
238 | * Modify the subject we are replying to to begin with Re: if | |
239 | * it does not already. | |
240 | */ | |
fc8872bb KS |
241 | char * |
242 | reedit(subj) | |
3d6f01e5 | 243 | register char *subj; |
fc8872bb | 244 | { |
3d6f01e5 | 245 | char *newsubj; |
fc8872bb KS |
246 | |
247 | if (subj == NOSTR) | |
3d6f01e5 EW |
248 | return NOSTR; |
249 | if ((subj[0] == 'r' || subj[0] == 'R') && | |
250 | (subj[1] == 'e' || subj[1] == 'E') && | |
251 | subj[2] == ':') | |
252 | return subj; | |
253 | newsubj = salloc(strlen(subj) + 5); | |
254 | strcpy(newsubj, "Re: "); | |
c6bb00f3 | 255 | strcpy(newsubj + 4, subj); |
3d6f01e5 | 256 | return newsubj; |
fc8872bb KS |
257 | } |
258 | ||
ca6bb034 KS |
259 | /* |
260 | * Preserve the named messages, so that they will be sent | |
261 | * back to the system mailbox. | |
262 | */ | |
263 | ||
264 | preserve(msgvec) | |
265 | int *msgvec; | |
266 | { | |
267 | register struct message *mp; | |
268 | register int *ip, mesg; | |
269 | ||
270 | if (edit) { | |
271 | printf("Cannot \"preserve\" in edit mode\n"); | |
272 | return(1); | |
273 | } | |
274 | for (ip = msgvec; *ip != NULL; ip++) { | |
275 | mesg = *ip; | |
276 | mp = &message[mesg-1]; | |
277 | mp->m_flag |= MPRESERVE; | |
8fe58892 | 278 | mp->m_flag &= ~MBOX; |
ca6bb034 KS |
279 | dot = mp; |
280 | } | |
281 | return(0); | |
282 | } | |
283 | ||
397029be S |
284 | /* |
285 | * Mark all given messages as unread. | |
286 | */ | |
287 | unread(msgvec) | |
288 | int msgvec[]; | |
289 | { | |
290 | register int *ip; | |
291 | ||
292 | for (ip = msgvec; *ip != NULL; ip++) { | |
293 | dot = &message[*ip-1]; | |
294 | dot->m_flag &= ~(MREAD|MTOUCH); | |
295 | dot->m_flag |= MSTATUS; | |
296 | } | |
297 | return(0); | |
298 | } | |
299 | ||
ca6bb034 KS |
300 | /* |
301 | * Print the size of each message. | |
302 | */ | |
303 | ||
304 | messize(msgvec) | |
305 | int *msgvec; | |
306 | { | |
307 | register struct message *mp; | |
308 | register int *ip, mesg; | |
309 | ||
310 | for (ip = msgvec; *ip != NULL; ip++) { | |
311 | mesg = *ip; | |
312 | mp = &message[mesg-1]; | |
397029be | 313 | printf("%d: %d/%ld\n", mesg, mp->m_lines, mp->m_size); |
ca6bb034 KS |
314 | } |
315 | return(0); | |
316 | } | |
317 | ||
318 | /* | |
319 | * Quit quickly. If we are sourcing, just pop the input level | |
320 | * by returning an error. | |
321 | */ | |
322 | ||
323 | rexit(e) | |
324 | { | |
325 | if (sourcing) | |
326 | return(1); | |
327 | exit(e); | |
828615a1 | 328 | /*NOTREACHED*/ |
ca6bb034 KS |
329 | } |
330 | ||
331 | /* | |
332 | * Set or display a variable value. Syntax is similar to that | |
333 | * of csh. | |
334 | */ | |
335 | ||
336 | set(arglist) | |
337 | char **arglist; | |
338 | { | |
339 | register struct var *vp; | |
340 | register char *cp, *cp2; | |
341 | char varbuf[BUFSIZ], **ap, **p; | |
342 | int errs, h, s; | |
343 | ||
470c33f3 | 344 | if (*arglist == NOSTR) { |
ca6bb034 KS |
345 | for (h = 0, s = 1; h < HSHSIZE; h++) |
346 | for (vp = variables[h]; vp != NOVAR; vp = vp->v_link) | |
347 | s++; | |
348 | ap = (char **) salloc(s * sizeof *ap); | |
349 | for (h = 0, p = ap; h < HSHSIZE; h++) | |
350 | for (vp = variables[h]; vp != NOVAR; vp = vp->v_link) | |
351 | *p++ = vp->v_name; | |
352 | *p = NOSTR; | |
353 | sort(ap); | |
354 | for (p = ap; *p != NOSTR; p++) | |
355 | printf("%s\t%s\n", *p, value(*p)); | |
356 | return(0); | |
357 | } | |
358 | errs = 0; | |
359 | for (ap = arglist; *ap != NOSTR; ap++) { | |
360 | cp = *ap; | |
361 | cp2 = varbuf; | |
362 | while (*cp != '=' && *cp != '\0') | |
363 | *cp2++ = *cp++; | |
364 | *cp2 = '\0'; | |
365 | if (*cp == '\0') | |
366 | cp = ""; | |
367 | else | |
368 | cp++; | |
369 | if (equal(varbuf, "")) { | |
370 | printf("Non-null variable name required\n"); | |
371 | errs++; | |
372 | continue; | |
373 | } | |
374 | assign(varbuf, cp); | |
375 | } | |
376 | return(errs); | |
377 | } | |
378 | ||
379 | /* | |
380 | * Unset a bunch of variable values. | |
381 | */ | |
382 | ||
383 | unset(arglist) | |
384 | char **arglist; | |
385 | { | |
386 | register struct var *vp, *vp2; | |
ca6bb034 KS |
387 | int errs, h; |
388 | char **ap; | |
389 | ||
390 | errs = 0; | |
391 | for (ap = arglist; *ap != NOSTR; ap++) { | |
392 | if ((vp2 = lookup(*ap)) == NOVAR) { | |
393 | if (!sourcing) { | |
394 | printf("\"%s\": undefined variable\n", *ap); | |
395 | errs++; | |
396 | } | |
397 | continue; | |
398 | } | |
399 | h = hash(*ap); | |
400 | if (vp2 == variables[h]) { | |
401 | variables[h] = variables[h]->v_link; | |
402 | vfree(vp2->v_name); | |
403 | vfree(vp2->v_value); | |
828615a1 | 404 | cfree((char *)vp2); |
ca6bb034 KS |
405 | continue; |
406 | } | |
407 | for (vp = variables[h]; vp->v_link != vp2; vp = vp->v_link) | |
408 | ; | |
409 | vp->v_link = vp2->v_link; | |
410 | vfree(vp2->v_name); | |
411 | vfree(vp2->v_value); | |
828615a1 | 412 | cfree((char *) vp2); |
ca6bb034 KS |
413 | } |
414 | return(errs); | |
415 | } | |
416 | ||
417 | /* | |
418 | * Put add users to a group. | |
419 | */ | |
420 | ||
421 | group(argv) | |
422 | char **argv; | |
423 | { | |
424 | register struct grouphead *gh; | |
425 | register struct group *gp; | |
426 | register int h; | |
427 | int s; | |
428 | char **ap, *gname, **p; | |
429 | ||
470c33f3 | 430 | if (*argv == NOSTR) { |
ca6bb034 KS |
431 | for (h = 0, s = 1; h < HSHSIZE; h++) |
432 | for (gh = groups[h]; gh != NOGRP; gh = gh->g_link) | |
433 | s++; | |
434 | ap = (char **) salloc(s * sizeof *ap); | |
435 | for (h = 0, p = ap; h < HSHSIZE; h++) | |
436 | for (gh = groups[h]; gh != NOGRP; gh = gh->g_link) | |
437 | *p++ = gh->g_name; | |
438 | *p = NOSTR; | |
439 | sort(ap); | |
440 | for (p = ap; *p != NOSTR; p++) | |
441 | printgroup(*p); | |
442 | return(0); | |
443 | } | |
470c33f3 | 444 | if (argv[1] == NOSTR) { |
ca6bb034 KS |
445 | printgroup(*argv); |
446 | return(0); | |
447 | } | |
448 | gname = *argv; | |
449 | h = hash(gname); | |
450 | if ((gh = findgroup(gname)) == NOGRP) { | |
451 | gh = (struct grouphead *) calloc(sizeof *gh, 1); | |
452 | gh->g_name = vcopy(gname); | |
453 | gh->g_list = NOGE; | |
454 | gh->g_link = groups[h]; | |
455 | groups[h] = gh; | |
456 | } | |
457 | ||
458 | /* | |
459 | * Insert names from the command list into the group. | |
460 | * Who cares if there are duplicates? They get tossed | |
461 | * later anyway. | |
462 | */ | |
463 | ||
464 | for (ap = argv+1; *ap != NOSTR; ap++) { | |
465 | gp = (struct group *) calloc(sizeof *gp, 1); | |
466 | gp->ge_name = vcopy(*ap); | |
467 | gp->ge_link = gh->g_list; | |
468 | gh->g_list = gp; | |
469 | } | |
470 | return(0); | |
471 | } | |
472 | ||
473 | /* | |
474 | * Sort the passed string vecotor into ascending dictionary | |
475 | * order. | |
476 | */ | |
477 | ||
478 | sort(list) | |
479 | char **list; | |
480 | { | |
481 | register char **ap; | |
482 | int diction(); | |
483 | ||
484 | for (ap = list; *ap != NOSTR; ap++) | |
485 | ; | |
486 | if (ap-list < 2) | |
487 | return; | |
828615a1 | 488 | qsort((char *)list, ap-list, sizeof *list, diction); |
ca6bb034 KS |
489 | } |
490 | ||
491 | /* | |
492 | * Do a dictionary order comparison of the arguments from | |
493 | * qsort. | |
494 | */ | |
495 | ||
496 | diction(a, b) | |
497 | register char **a, **b; | |
498 | { | |
499 | return(strcmp(*a, *b)); | |
500 | } | |
501 | ||
502 | /* | |
503 | * The do nothing command for comments. | |
504 | */ | |
505 | ||
828615a1 | 506 | /*ARGSUSED*/ |
ca6bb034 KS |
507 | null(e) |
508 | { | |
828615a1 | 509 | return 0; |
ca6bb034 KS |
510 | } |
511 | ||
512 | /* | |
2ee3bce2 EW |
513 | * Change to another file. With no argument, print information about |
514 | * the current file. | |
ca6bb034 | 515 | */ |
1031a04a | 516 | file(argv) |
2a0f6531 | 517 | register char **argv; |
ca6bb034 | 518 | { |
ca6bb034 | 519 | |
1031a04a | 520 | if (argv[0] == NOSTR) { |
890194fb | 521 | newfileinfo(); |
2a0f6531 | 522 | return 0; |
1031a04a | 523 | } |
8421b6a6 | 524 | if (setfile(*argv) < 0) |
2ee3bce2 | 525 | return 1; |
4d20fb09 | 526 | announce(); |
828615a1 | 527 | return 0; |
1031a04a KS |
528 | } |
529 | ||
ca6bb034 KS |
530 | /* |
531 | * Expand file names like echo | |
532 | */ | |
ca6bb034 KS |
533 | echo(argv) |
534 | char **argv; | |
535 | { | |
536 | register char **ap; | |
537 | register char *cp; | |
538 | ||
539 | for (ap = argv; *ap != NOSTR; ap++) { | |
540 | cp = *ap; | |
790344bc EW |
541 | if ((cp = expand(cp)) != NOSTR) { |
542 | if (ap != argv) | |
543 | putchar(' '); | |
544 | printf("%s", cp); | |
545 | } | |
ca6bb034 | 546 | } |
790344bc | 547 | putchar('\n'); |
3d6f01e5 | 548 | return 0; |
ca6bb034 KS |
549 | } |
550 | ||
397029be S |
551 | Respond(msgvec) |
552 | int *msgvec; | |
553 | { | |
554 | if (value("Replyall") == NOSTR) | |
555 | return (_Respond(msgvec)); | |
556 | else | |
557 | return (_respond(msgvec)); | |
558 | } | |
559 | ||
ca6bb034 KS |
560 | /* |
561 | * Reply to a series of messages by simply mailing to the senders | |
562 | * and not messing around with the To: and Cc: lists as in normal | |
563 | * reply. | |
564 | */ | |
397029be | 565 | _Respond(msgvec) |
ca6bb034 KS |
566 | int msgvec[]; |
567 | { | |
568 | struct header head; | |
569 | struct message *mp; | |
3d6f01e5 EW |
570 | register int *ap; |
571 | register char *cp; | |
ca6bb034 | 572 | |
3d6f01e5 | 573 | head.h_to = NIL; |
ca6bb034 KS |
574 | for (ap = msgvec; *ap != 0; ap++) { |
575 | mp = &message[*ap - 1]; | |
8225e7c3 | 576 | touch(mp); |
3d6f01e5 EW |
577 | dot = mp; |
578 | if ((cp = skin(hfield("from", mp))) == NOSTR) | |
579 | cp = skin(nameof(mp, 2)); | |
580 | head.h_to = cat(head.h_to, extract(cp, GTO)); | |
ca6bb034 | 581 | } |
3d6f01e5 EW |
582 | if (head.h_to == NIL) |
583 | return 0; | |
ca6bb034 | 584 | mp = &message[msgvec[0] - 1]; |
3d6f01e5 EW |
585 | if ((head.h_subject = hfield("subject", mp)) == NOSTR) |
586 | head.h_subject = hfield("subj", mp); | |
587 | head.h_subject = reedit(head.h_subject); | |
588 | head.h_cc = NIL; | |
589 | head.h_bcc = NIL; | |
590 | head.h_smopts = NIL; | |
591 | mail1(&head, 1); | |
592 | return 0; | |
ca6bb034 | 593 | } |
d344b00c KS |
594 | |
595 | /* | |
596 | * Conditional commands. These allow one to parameterize one's | |
597 | * .mailrc and do some things if sending, others if receiving. | |
598 | */ | |
599 | ||
600 | ifcmd(argv) | |
601 | char **argv; | |
602 | { | |
603 | register char *cp; | |
604 | ||
605 | if (cond != CANY) { | |
606 | printf("Illegal nested \"if\"\n"); | |
607 | return(1); | |
608 | } | |
609 | cond = CANY; | |
610 | cp = argv[0]; | |
611 | switch (*cp) { | |
612 | case 'r': case 'R': | |
613 | cond = CRCV; | |
614 | break; | |
615 | ||
616 | case 's': case 'S': | |
617 | cond = CSEND; | |
618 | break; | |
619 | ||
620 | default: | |
621 | printf("Unrecognized if-keyword: \"%s\"\n", cp); | |
622 | return(1); | |
623 | } | |
624 | return(0); | |
625 | } | |
626 | ||
627 | /* | |
628 | * Implement 'else'. This is pretty simple -- we just | |
629 | * flip over the conditional flag. | |
630 | */ | |
631 | ||
632 | elsecmd() | |
633 | { | |
634 | ||
635 | switch (cond) { | |
636 | case CANY: | |
637 | printf("\"Else\" without matching \"if\"\n"); | |
638 | return(1); | |
639 | ||
640 | case CSEND: | |
641 | cond = CRCV; | |
642 | break; | |
643 | ||
644 | case CRCV: | |
645 | cond = CSEND; | |
646 | break; | |
647 | ||
648 | default: | |
649 | printf("Mail's idea of conditions is screwed up\n"); | |
650 | cond = CANY; | |
651 | break; | |
652 | } | |
653 | return(0); | |
654 | } | |
655 | ||
656 | /* | |
657 | * End of if statement. Just set cond back to anything. | |
658 | */ | |
659 | ||
660 | endifcmd() | |
661 | { | |
662 | ||
663 | if (cond == CANY) { | |
664 | printf("\"Endif\" without matching \"if\"\n"); | |
665 | return(1); | |
666 | } | |
667 | cond = CANY; | |
668 | return(0); | |
669 | } | |
1c04ff22 KS |
670 | |
671 | /* | |
672 | * Set the list of alternate names. | |
673 | */ | |
674 | alternates(namelist) | |
675 | char **namelist; | |
676 | { | |
677 | register int c; | |
678 | register char **ap, **ap2, *cp; | |
679 | ||
680 | c = argcount(namelist) + 1; | |
681 | if (c == 1) { | |
682 | if (altnames == 0) | |
683 | return(0); | |
684 | for (ap = altnames; *ap; ap++) | |
685 | printf("%s ", *ap); | |
686 | printf("\n"); | |
687 | return(0); | |
688 | } | |
689 | if (altnames != 0) | |
690 | cfree((char *) altnames); | |
828615a1 | 691 | altnames = (char **) calloc((unsigned) c, sizeof (char *)); |
1c04ff22 | 692 | for (ap = namelist, ap2 = altnames; *ap; ap++, ap2++) { |
828615a1 | 693 | cp = (char *) calloc((unsigned) strlen(*ap) + 1, sizeof (char)); |
1c04ff22 KS |
694 | strcpy(cp, *ap); |
695 | *ap2 = cp; | |
696 | } | |
697 | *ap2 = 0; | |
698 | return(0); | |
699 | } |