Commit | Line | Data |
---|---|---|
d0aeaf5a | 1 | /* |
a12ff486 KB |
2 | * Copyright (c) 1980, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
0c5f72fb | 4 | * |
f15db449 | 5 | * %sccs.include.redist.c% |
d0aeaf5a DF |
6 | */ |
7 | ||
acfc7e9b | 8 | #ifndef lint |
71012a2d | 9 | static char sccsid[] = "@(#)cmd3.c 8.2 (Berkeley) %G%"; |
acfc7e9b | 10 | #endif /* not lint */ |
ca6bb034 KS |
11 | |
12 | #include "rcv.h" | |
a0d23834 | 13 | #include "extern.h" |
ca6bb034 KS |
14 | |
15 | /* | |
16 | * Mail -- a mail program | |
17 | * | |
18 | * Still more user commands. | |
19 | */ | |
20 | ||
ca6bb034 KS |
21 | /* |
22 | * Process a shell escape by saving signals, ignoring signals, | |
23 | * and forking a sh -c | |
24 | */ | |
a0d23834 | 25 | int |
ca6bb034 KS |
26 | shell(str) |
27 | char *str; | |
28 | { | |
e62a1467 | 29 | sig_t sigint = signal(SIGINT, SIG_IGN); |
d33aa50d | 30 | char *shell; |
e8adee6e | 31 | char cmd[BUFSIZ]; |
ca6bb034 | 32 | |
d33aa50d | 33 | (void) strcpy(cmd, str); |
e8adee6e | 34 | if (bangexp(cmd) < 0) |
2ee3bce2 | 35 | return 1; |
d33aa50d | 36 | if ((shell = value("SHELL")) == NOSTR) |
435e8dff | 37 | shell = _PATH_CSHELL; |
d33aa50d EW |
38 | (void) run_command(shell, 0, -1, -1, "-c", cmd, NOSTR); |
39 | (void) signal(SIGINT, sigint); | |
ca6bb034 | 40 | printf("!\n"); |
d33aa50d | 41 | return 0; |
ca6bb034 KS |
42 | } |
43 | ||
44 | /* | |
45 | * Fork an interactive shell. | |
46 | */ | |
828615a1 | 47 | /*ARGSUSED*/ |
a0d23834 | 48 | int |
ca6bb034 KS |
49 | dosh(str) |
50 | char *str; | |
51 | { | |
e62a1467 | 52 | sig_t sigint = signal(SIGINT, SIG_IGN); |
d33aa50d | 53 | char *shell; |
828615a1 | 54 | |
d33aa50d | 55 | if ((shell = value("SHELL")) == NOSTR) |
435e8dff | 56 | shell = _PATH_CSHELL; |
a0d23834 | 57 | (void) run_command(shell, 0, -1, -1, NOSTR, NOSTR, NOSTR); |
d33aa50d | 58 | (void) signal(SIGINT, sigint); |
ca6bb034 | 59 | putchar('\n'); |
d33aa50d | 60 | return 0; |
ca6bb034 KS |
61 | } |
62 | ||
e8adee6e KS |
63 | /* |
64 | * Expand the shell escape by expanding unescaped !'s into the | |
65 | * last issued command where possible. | |
66 | */ | |
67 | ||
68 | char lastbang[128]; | |
69 | ||
a0d23834 | 70 | int |
e8adee6e KS |
71 | bangexp(str) |
72 | char *str; | |
73 | { | |
74 | char bangbuf[BUFSIZ]; | |
75 | register char *cp, *cp2; | |
76 | register int n; | |
77 | int changed = 0; | |
78 | ||
79 | cp = str; | |
80 | cp2 = bangbuf; | |
81 | n = BUFSIZ; | |
82 | while (*cp) { | |
83 | if (*cp == '!') { | |
84 | if (n < strlen(lastbang)) { | |
85 | overf: | |
86 | printf("Command buffer overflow\n"); | |
87 | return(-1); | |
88 | } | |
89 | changed++; | |
90 | strcpy(cp2, lastbang); | |
91 | cp2 += strlen(lastbang); | |
92 | n -= strlen(lastbang); | |
93 | cp++; | |
94 | continue; | |
95 | } | |
96 | if (*cp == '\\' && cp[1] == '!') { | |
97 | if (--n <= 1) | |
98 | goto overf; | |
99 | *cp2++ = '!'; | |
100 | cp += 2; | |
101 | changed++; | |
102 | } | |
103 | if (--n <= 1) | |
104 | goto overf; | |
105 | *cp2++ = *cp++; | |
106 | } | |
107 | *cp2 = 0; | |
108 | if (changed) { | |
109 | printf("!%s\n", bangbuf); | |
110 | fflush(stdout); | |
111 | } | |
112 | strcpy(str, bangbuf); | |
113 | strncpy(lastbang, bangbuf, 128); | |
114 | lastbang[127] = 0; | |
115 | return(0); | |
116 | } | |
117 | ||
ca6bb034 KS |
118 | /* |
119 | * Print out a nice help message from some file or another. | |
120 | */ | |
121 | ||
a0d23834 | 122 | int |
ca6bb034 KS |
123 | help() |
124 | { | |
125 | register c; | |
126 | register FILE *f; | |
127 | ||
07b0d286 | 128 | if ((f = Fopen(_PATH_HELP, "r")) == NULL) { |
435e8dff | 129 | perror(_PATH_HELP); |
ca6bb034 KS |
130 | return(1); |
131 | } | |
132 | while ((c = getc(f)) != EOF) | |
133 | putchar(c); | |
07b0d286 | 134 | Fclose(f); |
ca6bb034 KS |
135 | return(0); |
136 | } | |
137 | ||
138 | /* | |
139 | * Change user's working directory. | |
140 | */ | |
a0d23834 | 141 | int |
23464f86 EW |
142 | schdir(arglist) |
143 | char **arglist; | |
ca6bb034 | 144 | { |
23464f86 | 145 | char *cp; |
ca6bb034 | 146 | |
23464f86 | 147 | if (*arglist == NOSTR) |
ca6bb034 KS |
148 | cp = homedir; |
149 | else | |
23464f86 | 150 | if ((cp = expand(*arglist)) == NOSTR) |
ca6bb034 KS |
151 | return(1); |
152 | if (chdir(cp) < 0) { | |
153 | perror(cp); | |
154 | return(1); | |
155 | } | |
23464f86 | 156 | return 0; |
ca6bb034 KS |
157 | } |
158 | ||
a0d23834 | 159 | int |
397029be S |
160 | respond(msgvec) |
161 | int *msgvec; | |
162 | { | |
163 | if (value("Replyall") == NOSTR) | |
164 | return (_respond(msgvec)); | |
165 | else | |
166 | return (_Respond(msgvec)); | |
167 | } | |
168 | ||
ca6bb034 KS |
169 | /* |
170 | * Reply to a list of messages. Extract each name from the | |
171 | * message header and send them off to mail1() | |
172 | */ | |
a0d23834 | 173 | int |
397029be | 174 | _respond(msgvec) |
ca6bb034 KS |
175 | int *msgvec; |
176 | { | |
177 | struct message *mp; | |
828615a1 | 178 | char *cp, *rcv, *replyto; |
3d6f01e5 | 179 | char **ap; |
ca6bb034 KS |
180 | struct name *np; |
181 | struct header head; | |
ca6bb034 KS |
182 | |
183 | if (msgvec[1] != 0) { | |
184 | printf("Sorry, can't reply to multiple messages at once\n"); | |
185 | return(1); | |
186 | } | |
187 | mp = &message[msgvec[0] - 1]; | |
8225e7c3 | 188 | touch(mp); |
ca6bb034 | 189 | dot = mp; |
3d6f01e5 EW |
190 | if ((rcv = skin(hfield("from", mp))) == NOSTR) |
191 | rcv = skin(nameof(mp, 1)); | |
192 | if ((replyto = skin(hfield("reply-to", mp))) != NOSTR) | |
193 | np = extract(replyto, GTO); | |
194 | else if ((cp = skin(hfield("to", mp))) != NOSTR) | |
195 | np = extract(cp, GTO); | |
196 | else | |
197 | np = NIL; | |
198 | np = elide(np); | |
1c04ff22 KS |
199 | /* |
200 | * Delete my name from the reply list, | |
201 | * and with it, all my alternate names. | |
202 | */ | |
470c33f3 | 203 | np = delname(np, myname); |
7949d400 | 204 | if (altnames) |
1c04ff22 | 205 | for (ap = altnames; *ap; ap++) |
470c33f3 | 206 | np = delname(np, *ap); |
3d6f01e5 EW |
207 | if (np != NIL && replyto == NOSTR) |
208 | np = cat(np, extract(rcv, GTO)); | |
209 | else if (np == NIL) { | |
210 | if (replyto != NOSTR) | |
52984be9 | 211 | printf("Empty reply-to field -- replying to author\n"); |
3d6f01e5 | 212 | np = extract(rcv, GTO); |
52984be9 | 213 | } |
3d6f01e5 EW |
214 | head.h_to = np; |
215 | if ((head.h_subject = hfield("subject", mp)) == NOSTR) | |
ca6bb034 | 216 | head.h_subject = hfield("subj", mp); |
fc8872bb | 217 | head.h_subject = reedit(head.h_subject); |
3d6f01e5 EW |
218 | if (replyto == NOSTR && (cp = skin(hfield("cc", mp))) != NOSTR) { |
219 | np = elide(extract(cp, GCC)); | |
470c33f3 | 220 | np = delname(np, myname); |
3d6f01e5 EW |
221 | if (altnames != 0) |
222 | for (ap = altnames; *ap; ap++) | |
470c33f3 | 223 | np = delname(np, *ap); |
3d6f01e5 EW |
224 | head.h_cc = np; |
225 | } else | |
226 | head.h_cc = NIL; | |
227 | head.h_bcc = NIL; | |
228 | head.h_smopts = NIL; | |
229 | mail1(&head, 1); | |
ca6bb034 KS |
230 | return(0); |
231 | } | |
232 | ||
fc8872bb KS |
233 | /* |
234 | * Modify the subject we are replying to to begin with Re: if | |
235 | * it does not already. | |
236 | */ | |
fc8872bb KS |
237 | char * |
238 | reedit(subj) | |
3d6f01e5 | 239 | register char *subj; |
fc8872bb | 240 | { |
3d6f01e5 | 241 | char *newsubj; |
fc8872bb KS |
242 | |
243 | if (subj == NOSTR) | |
3d6f01e5 EW |
244 | return NOSTR; |
245 | if ((subj[0] == 'r' || subj[0] == 'R') && | |
246 | (subj[1] == 'e' || subj[1] == 'E') && | |
247 | subj[2] == ':') | |
248 | return subj; | |
249 | newsubj = salloc(strlen(subj) + 5); | |
250 | strcpy(newsubj, "Re: "); | |
c6bb00f3 | 251 | strcpy(newsubj + 4, subj); |
3d6f01e5 | 252 | return newsubj; |
fc8872bb KS |
253 | } |
254 | ||
ca6bb034 KS |
255 | /* |
256 | * Preserve the named messages, so that they will be sent | |
257 | * back to the system mailbox. | |
258 | */ | |
a0d23834 | 259 | int |
ca6bb034 KS |
260 | preserve(msgvec) |
261 | int *msgvec; | |
262 | { | |
263 | register struct message *mp; | |
264 | register int *ip, mesg; | |
265 | ||
266 | if (edit) { | |
267 | printf("Cannot \"preserve\" in edit mode\n"); | |
268 | return(1); | |
269 | } | |
270 | for (ip = msgvec; *ip != NULL; ip++) { | |
271 | mesg = *ip; | |
272 | mp = &message[mesg-1]; | |
273 | mp->m_flag |= MPRESERVE; | |
8fe58892 | 274 | mp->m_flag &= ~MBOX; |
ca6bb034 KS |
275 | dot = mp; |
276 | } | |
277 | return(0); | |
278 | } | |
279 | ||
397029be S |
280 | /* |
281 | * Mark all given messages as unread. | |
282 | */ | |
a0d23834 | 283 | int |
397029be S |
284 | unread(msgvec) |
285 | int msgvec[]; | |
286 | { | |
287 | register int *ip; | |
288 | ||
289 | for (ip = msgvec; *ip != NULL; ip++) { | |
290 | dot = &message[*ip-1]; | |
291 | dot->m_flag &= ~(MREAD|MTOUCH); | |
292 | dot->m_flag |= MSTATUS; | |
293 | } | |
294 | return(0); | |
295 | } | |
296 | ||
ca6bb034 KS |
297 | /* |
298 | * Print the size of each message. | |
299 | */ | |
a0d23834 | 300 | int |
ca6bb034 KS |
301 | messize(msgvec) |
302 | int *msgvec; | |
303 | { | |
304 | register struct message *mp; | |
305 | register int *ip, mesg; | |
306 | ||
307 | for (ip = msgvec; *ip != NULL; ip++) { | |
308 | mesg = *ip; | |
309 | mp = &message[mesg-1]; | |
397029be | 310 | printf("%d: %d/%ld\n", mesg, mp->m_lines, mp->m_size); |
ca6bb034 KS |
311 | } |
312 | return(0); | |
313 | } | |
314 | ||
315 | /* | |
316 | * Quit quickly. If we are sourcing, just pop the input level | |
317 | * by returning an error. | |
318 | */ | |
a0d23834 | 319 | int |
ca6bb034 | 320 | rexit(e) |
a0d23834 | 321 | int e; |
ca6bb034 KS |
322 | { |
323 | if (sourcing) | |
324 | return(1); | |
325 | exit(e); | |
828615a1 | 326 | /*NOTREACHED*/ |
ca6bb034 KS |
327 | } |
328 | ||
329 | /* | |
330 | * Set or display a variable value. Syntax is similar to that | |
331 | * of csh. | |
332 | */ | |
a0d23834 | 333 | int |
ca6bb034 KS |
334 | set(arglist) |
335 | char **arglist; | |
336 | { | |
337 | register struct var *vp; | |
338 | register char *cp, *cp2; | |
339 | char varbuf[BUFSIZ], **ap, **p; | |
340 | int errs, h, s; | |
341 | ||
470c33f3 | 342 | if (*arglist == NOSTR) { |
ca6bb034 KS |
343 | for (h = 0, s = 1; h < HSHSIZE; h++) |
344 | for (vp = variables[h]; vp != NOVAR; vp = vp->v_link) | |
345 | s++; | |
346 | ap = (char **) salloc(s * sizeof *ap); | |
347 | for (h = 0, p = ap; h < HSHSIZE; h++) | |
348 | for (vp = variables[h]; vp != NOVAR; vp = vp->v_link) | |
349 | *p++ = vp->v_name; | |
350 | *p = NOSTR; | |
351 | sort(ap); | |
352 | for (p = ap; *p != NOSTR; p++) | |
353 | printf("%s\t%s\n", *p, value(*p)); | |
354 | return(0); | |
355 | } | |
356 | errs = 0; | |
357 | for (ap = arglist; *ap != NOSTR; ap++) { | |
358 | cp = *ap; | |
359 | cp2 = varbuf; | |
360 | while (*cp != '=' && *cp != '\0') | |
361 | *cp2++ = *cp++; | |
362 | *cp2 = '\0'; | |
363 | if (*cp == '\0') | |
364 | cp = ""; | |
365 | else | |
366 | cp++; | |
367 | if (equal(varbuf, "")) { | |
368 | printf("Non-null variable name required\n"); | |
369 | errs++; | |
370 | continue; | |
371 | } | |
372 | assign(varbuf, cp); | |
373 | } | |
374 | return(errs); | |
375 | } | |
376 | ||
377 | /* | |
378 | * Unset a bunch of variable values. | |
379 | */ | |
a0d23834 | 380 | int |
ca6bb034 KS |
381 | unset(arglist) |
382 | char **arglist; | |
383 | { | |
384 | register struct var *vp, *vp2; | |
ca6bb034 KS |
385 | int errs, h; |
386 | char **ap; | |
387 | ||
388 | errs = 0; | |
389 | for (ap = arglist; *ap != NOSTR; ap++) { | |
390 | if ((vp2 = lookup(*ap)) == NOVAR) { | |
391 | if (!sourcing) { | |
392 | printf("\"%s\": undefined variable\n", *ap); | |
393 | errs++; | |
394 | } | |
395 | continue; | |
396 | } | |
397 | h = hash(*ap); | |
398 | if (vp2 == variables[h]) { | |
399 | variables[h] = variables[h]->v_link; | |
400 | vfree(vp2->v_name); | |
401 | vfree(vp2->v_value); | |
65f83c7e | 402 | free((char *)vp2); |
ca6bb034 KS |
403 | continue; |
404 | } | |
405 | for (vp = variables[h]; vp->v_link != vp2; vp = vp->v_link) | |
406 | ; | |
407 | vp->v_link = vp2->v_link; | |
408 | vfree(vp2->v_name); | |
409 | vfree(vp2->v_value); | |
65f83c7e | 410 | free((char *) vp2); |
ca6bb034 KS |
411 | } |
412 | return(errs); | |
413 | } | |
414 | ||
415 | /* | |
416 | * Put add users to a group. | |
417 | */ | |
a0d23834 | 418 | int |
ca6bb034 KS |
419 | group(argv) |
420 | char **argv; | |
421 | { | |
422 | register struct grouphead *gh; | |
423 | register struct group *gp; | |
424 | register int h; | |
425 | int s; | |
426 | char **ap, *gname, **p; | |
427 | ||
470c33f3 | 428 | if (*argv == NOSTR) { |
ca6bb034 KS |
429 | for (h = 0, s = 1; h < HSHSIZE; h++) |
430 | for (gh = groups[h]; gh != NOGRP; gh = gh->g_link) | |
431 | s++; | |
432 | ap = (char **) salloc(s * sizeof *ap); | |
433 | for (h = 0, p = ap; h < HSHSIZE; h++) | |
434 | for (gh = groups[h]; gh != NOGRP; gh = gh->g_link) | |
435 | *p++ = gh->g_name; | |
436 | *p = NOSTR; | |
437 | sort(ap); | |
438 | for (p = ap; *p != NOSTR; p++) | |
439 | printgroup(*p); | |
440 | return(0); | |
441 | } | |
470c33f3 | 442 | if (argv[1] == NOSTR) { |
ca6bb034 KS |
443 | printgroup(*argv); |
444 | return(0); | |
445 | } | |
446 | gname = *argv; | |
447 | h = hash(gname); | |
448 | if ((gh = findgroup(gname)) == NOGRP) { | |
449 | gh = (struct grouphead *) calloc(sizeof *gh, 1); | |
450 | gh->g_name = vcopy(gname); | |
451 | gh->g_list = NOGE; | |
452 | gh->g_link = groups[h]; | |
453 | groups[h] = gh; | |
454 | } | |
455 | ||
456 | /* | |
457 | * Insert names from the command list into the group. | |
458 | * Who cares if there are duplicates? They get tossed | |
459 | * later anyway. | |
460 | */ | |
461 | ||
462 | for (ap = argv+1; *ap != NOSTR; ap++) { | |
463 | gp = (struct group *) calloc(sizeof *gp, 1); | |
464 | gp->ge_name = vcopy(*ap); | |
465 | gp->ge_link = gh->g_list; | |
466 | gh->g_list = gp; | |
467 | } | |
468 | return(0); | |
469 | } | |
470 | ||
471 | /* | |
472 | * Sort the passed string vecotor into ascending dictionary | |
473 | * order. | |
474 | */ | |
a0d23834 | 475 | void |
ca6bb034 KS |
476 | sort(list) |
477 | char **list; | |
478 | { | |
479 | register char **ap; | |
480 | int diction(); | |
481 | ||
482 | for (ap = list; *ap != NOSTR; ap++) | |
483 | ; | |
484 | if (ap-list < 2) | |
485 | return; | |
a0d23834 | 486 | qsort(list, ap-list, sizeof(*list), diction); |
ca6bb034 KS |
487 | } |
488 | ||
489 | /* | |
490 | * Do a dictionary order comparison of the arguments from | |
491 | * qsort. | |
492 | */ | |
a0d23834 | 493 | int |
ca6bb034 | 494 | diction(a, b) |
a0d23834 | 495 | const void *a, *b; |
ca6bb034 | 496 | { |
a0d23834 | 497 | return(strcmp(*(char **)a, *(char **)b)); |
ca6bb034 KS |
498 | } |
499 | ||
500 | /* | |
501 | * The do nothing command for comments. | |
502 | */ | |
503 | ||
828615a1 | 504 | /*ARGSUSED*/ |
a0d23834 | 505 | int |
ca6bb034 | 506 | null(e) |
a0d23834 | 507 | int e; |
ca6bb034 | 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 | */ |
a0d23834 | 516 | int |
1031a04a | 517 | file(argv) |
2a0f6531 | 518 | register char **argv; |
ca6bb034 | 519 | { |
ca6bb034 | 520 | |
1031a04a | 521 | if (argv[0] == NOSTR) { |
71012a2d | 522 | newfileinfo(0); |
2a0f6531 | 523 | return 0; |
1031a04a | 524 | } |
8421b6a6 | 525 | if (setfile(*argv) < 0) |
2ee3bce2 | 526 | return 1; |
4d20fb09 | 527 | announce(); |
828615a1 | 528 | return 0; |
1031a04a KS |
529 | } |
530 | ||
ca6bb034 KS |
531 | /* |
532 | * Expand file names like echo | |
533 | */ | |
a0d23834 | 534 | int |
ca6bb034 KS |
535 | echo(argv) |
536 | char **argv; | |
537 | { | |
538 | register char **ap; | |
539 | register char *cp; | |
540 | ||
541 | for (ap = argv; *ap != NOSTR; ap++) { | |
542 | cp = *ap; | |
790344bc EW |
543 | if ((cp = expand(cp)) != NOSTR) { |
544 | if (ap != argv) | |
545 | putchar(' '); | |
546 | printf("%s", cp); | |
547 | } | |
ca6bb034 | 548 | } |
790344bc | 549 | putchar('\n'); |
3d6f01e5 | 550 | return 0; |
ca6bb034 KS |
551 | } |
552 | ||
a0d23834 | 553 | int |
397029be S |
554 | Respond(msgvec) |
555 | int *msgvec; | |
556 | { | |
557 | if (value("Replyall") == NOSTR) | |
558 | return (_Respond(msgvec)); | |
559 | else | |
560 | return (_respond(msgvec)); | |
561 | } | |
562 | ||
ca6bb034 KS |
563 | /* |
564 | * Reply to a series of messages by simply mailing to the senders | |
565 | * and not messing around with the To: and Cc: lists as in normal | |
566 | * reply. | |
567 | */ | |
a0d23834 | 568 | int |
397029be | 569 | _Respond(msgvec) |
ca6bb034 KS |
570 | int msgvec[]; |
571 | { | |
572 | struct header head; | |
573 | struct message *mp; | |
3d6f01e5 EW |
574 | register int *ap; |
575 | register char *cp; | |
ca6bb034 | 576 | |
3d6f01e5 | 577 | head.h_to = NIL; |
ca6bb034 KS |
578 | for (ap = msgvec; *ap != 0; ap++) { |
579 | mp = &message[*ap - 1]; | |
8225e7c3 | 580 | touch(mp); |
3d6f01e5 EW |
581 | dot = mp; |
582 | if ((cp = skin(hfield("from", mp))) == NOSTR) | |
583 | cp = skin(nameof(mp, 2)); | |
584 | head.h_to = cat(head.h_to, extract(cp, GTO)); | |
ca6bb034 | 585 | } |
3d6f01e5 EW |
586 | if (head.h_to == NIL) |
587 | return 0; | |
ca6bb034 | 588 | mp = &message[msgvec[0] - 1]; |
3d6f01e5 EW |
589 | if ((head.h_subject = hfield("subject", mp)) == NOSTR) |
590 | head.h_subject = hfield("subj", mp); | |
591 | head.h_subject = reedit(head.h_subject); | |
592 | head.h_cc = NIL; | |
593 | head.h_bcc = NIL; | |
594 | head.h_smopts = NIL; | |
595 | mail1(&head, 1); | |
596 | return 0; | |
ca6bb034 | 597 | } |
d344b00c KS |
598 | |
599 | /* | |
600 | * Conditional commands. These allow one to parameterize one's | |
601 | * .mailrc and do some things if sending, others if receiving. | |
602 | */ | |
a0d23834 | 603 | int |
d344b00c KS |
604 | ifcmd(argv) |
605 | char **argv; | |
606 | { | |
607 | register char *cp; | |
608 | ||
609 | if (cond != CANY) { | |
610 | printf("Illegal nested \"if\"\n"); | |
611 | return(1); | |
612 | } | |
613 | cond = CANY; | |
614 | cp = argv[0]; | |
615 | switch (*cp) { | |
616 | case 'r': case 'R': | |
617 | cond = CRCV; | |
618 | break; | |
619 | ||
620 | case 's': case 'S': | |
621 | cond = CSEND; | |
622 | break; | |
623 | ||
624 | default: | |
625 | printf("Unrecognized if-keyword: \"%s\"\n", cp); | |
626 | return(1); | |
627 | } | |
628 | return(0); | |
629 | } | |
630 | ||
631 | /* | |
632 | * Implement 'else'. This is pretty simple -- we just | |
633 | * flip over the conditional flag. | |
634 | */ | |
a0d23834 | 635 | int |
d344b00c KS |
636 | elsecmd() |
637 | { | |
638 | ||
639 | switch (cond) { | |
640 | case CANY: | |
641 | printf("\"Else\" without matching \"if\"\n"); | |
642 | return(1); | |
643 | ||
644 | case CSEND: | |
645 | cond = CRCV; | |
646 | break; | |
647 | ||
648 | case CRCV: | |
649 | cond = CSEND; | |
650 | break; | |
651 | ||
652 | default: | |
653 | printf("Mail's idea of conditions is screwed up\n"); | |
654 | cond = CANY; | |
655 | break; | |
656 | } | |
657 | return(0); | |
658 | } | |
659 | ||
660 | /* | |
661 | * End of if statement. Just set cond back to anything. | |
662 | */ | |
a0d23834 | 663 | int |
d344b00c KS |
664 | endifcmd() |
665 | { | |
666 | ||
667 | if (cond == CANY) { | |
668 | printf("\"Endif\" without matching \"if\"\n"); | |
669 | return(1); | |
670 | } | |
671 | cond = CANY; | |
672 | return(0); | |
673 | } | |
1c04ff22 KS |
674 | |
675 | /* | |
676 | * Set the list of alternate names. | |
677 | */ | |
a0d23834 | 678 | int |
1c04ff22 KS |
679 | alternates(namelist) |
680 | char **namelist; | |
681 | { | |
682 | register int c; | |
683 | register char **ap, **ap2, *cp; | |
684 | ||
685 | c = argcount(namelist) + 1; | |
686 | if (c == 1) { | |
687 | if (altnames == 0) | |
688 | return(0); | |
689 | for (ap = altnames; *ap; ap++) | |
690 | printf("%s ", *ap); | |
691 | printf("\n"); | |
692 | return(0); | |
693 | } | |
694 | if (altnames != 0) | |
65f83c7e | 695 | free((char *) altnames); |
828615a1 | 696 | altnames = (char **) calloc((unsigned) c, sizeof (char *)); |
1c04ff22 | 697 | for (ap = namelist, ap2 = altnames; *ap; ap++, ap2++) { |
828615a1 | 698 | cp = (char *) calloc((unsigned) strlen(*ap) + 1, sizeof (char)); |
1c04ff22 KS |
699 | strcpy(cp, *ap); |
700 | *ap2 = cp; | |
701 | } | |
702 | *ap2 = 0; | |
703 | return(0); | |
704 | } |