Commit | Line | Data |
---|---|---|
06300dd9 KS |
1 | # |
2 | ||
3 | /* | |
4 | * Mail -- a mail program | |
5 | * | |
6 | * Collect input from standard input, handling | |
7 | * ~ escapes. | |
8 | */ | |
9 | ||
79ddb121 | 10 | static char *SccsId = "@(#)collect.c 2.1 %G%"; |
06300dd9 KS |
11 | |
12 | #include "rcv.h" | |
13 | #include <sys/stat.h> | |
14 | ||
15 | /* | |
16 | * Read a message from standard output and return a read file to it | |
17 | * or NULL on error. | |
18 | */ | |
19 | ||
20 | /* | |
21 | * The following hokiness with global variables is so that on | |
22 | * receipt of an interrupt signal, the partial message can be salted | |
23 | * away on dead.letter. The output file must be available to flush, | |
24 | * and the input to read. Several open files could be saved all through | |
25 | * Mail if stdio allowed simultaneous read/write access. | |
26 | */ | |
27 | ||
28 | static int (*savesig)(); /* Previous SIGINT value */ | |
7feecf47 | 29 | static int (*savehup)(); /* Previous SIGHUP value */ |
2d55c063 | 30 | static int (*savecont)(); /* Previous SIGCONT value */ |
06300dd9 KS |
31 | static FILE *newi; /* File for saving away */ |
32 | static FILE *newo; /* Output side of same */ | |
33 | static int hf; /* Ignore interrups */ | |
06300dd9 KS |
34 | static int hadintr; /* Have seen one SIGINT so far */ |
35 | ||
36 | static jmp_buf coljmp; /* To get back to work */ | |
37 | ||
38 | FILE * | |
39 | collect(hp) | |
40 | struct header *hp; | |
41 | { | |
42 | FILE *ibuf, *fbuf, *obuf; | |
2d55c063 | 43 | int lc, cc, escape, collrub(), intack(), stopdot, collhup, collcont(); |
06300dd9 KS |
44 | register int c, t; |
45 | char linebuf[LINESIZE], *cp; | |
46 | extern char tempMail[]; | |
97bff179 | 47 | int notify(); |
06300dd9 KS |
48 | |
49 | noreset++; | |
50 | stopdot = (value("dot") != NOSTR) && intty; | |
51 | ibuf = obuf = NULL; | |
52 | if (value("ignore") != NOSTR) | |
53 | hf = 1; | |
54 | else | |
55 | hf = 0; | |
06300dd9 | 56 | hadintr = 0; |
7feecf47 KS |
57 | if ((savesig = sigset(SIGINT, SIG_IGN)) != SIG_IGN) |
58 | sigset(SIGINT, hf ? intack : collrub), sighold(SIGINT); | |
59 | if ((savehup = sigset(SIGHUP, SIG_IGN)) != SIG_IGN) | |
60 | sigset(SIGHUP, collrub), sighold(SIGINT); | |
2d55c063 | 61 | savecont = sigset(SIGCONT, collcont); |
06300dd9 KS |
62 | newi = NULL; |
63 | newo = NULL; | |
64 | if ((obuf = fopen(tempMail, "w")) == NULL) { | |
65 | perror(tempMail); | |
66 | goto err; | |
67 | } | |
68 | newo = obuf; | |
69 | if ((ibuf = fopen(tempMail, "r")) == NULL) { | |
70 | perror(tempMail); | |
71 | newo = NULL; | |
72 | fclose(obuf); | |
73 | goto err; | |
74 | } | |
75 | newi = ibuf; | |
76 | remove(tempMail); | |
77 | ||
78 | /* | |
79 | * If we are going to prompt for a subject, | |
80 | * refrain from printing a newline after | |
81 | * the headers (since some people mind). | |
82 | */ | |
83 | ||
84 | t = GTO|GSUBJECT|GCC|GNL; | |
85 | c = 0; | |
86 | if (intty && sflag == NOSTR && hp->h_subject == NOSTR && value("ask")) | |
87 | t &= ~GNL, c++; | |
88 | if (hp->h_seq != 0) { | |
89 | puthead(hp, stdout, t); | |
90 | fflush(stdout); | |
91 | } | |
92 | if (c) | |
93 | grabh(hp, GSUBJECT); | |
94 | escape = ESCAPE; | |
95 | if ((cp = value("escape")) != NOSTR) | |
96 | escape = *cp; | |
97 | for (;;) { | |
98 | setjmp(coljmp); | |
7feecf47 KS |
99 | sigrelse(SIGINT); |
100 | sigrelse(SIGHUP); | |
06300dd9 KS |
101 | flush(); |
102 | if (readline(stdin, linebuf) <= 0) | |
103 | break; | |
104 | hadintr = 0; | |
105 | if (stopdot && equal(".", linebuf)) | |
106 | break; | |
3dffb9c8 | 107 | if (linebuf[0] != escape || rflag != NOSTR) { |
06300dd9 KS |
108 | if ((t = putline(obuf, linebuf)) < 0) |
109 | goto err; | |
110 | continue; | |
111 | } | |
112 | c = linebuf[1]; | |
06300dd9 KS |
113 | switch (c) { |
114 | default: | |
115 | /* | |
116 | * On double escape, just send the single one. | |
117 | * Otherwise, it's an error. | |
118 | */ | |
119 | ||
120 | if (c == escape) { | |
121 | if (putline(obuf, &linebuf[1]) < 0) | |
122 | goto err; | |
123 | else | |
124 | break; | |
125 | } | |
126 | printf("Unknown tilde escape.\n"); | |
127 | break; | |
128 | ||
129 | case 'C': | |
130 | /* | |
131 | * Dump core. | |
132 | */ | |
133 | ||
134 | core(); | |
135 | break; | |
136 | ||
137 | case '!': | |
138 | /* | |
139 | * Shell escape, send the balance of the | |
140 | * line to sh -c. | |
141 | */ | |
142 | ||
143 | shell(&linebuf[2]); | |
144 | break; | |
145 | ||
146 | case ':': | |
147 | case '_': | |
148 | /* | |
149 | * Escape to command mode, but be nice! | |
150 | */ | |
151 | ||
343c874e | 152 | execute(&linebuf[2], 1); |
06300dd9 KS |
153 | break; |
154 | ||
155 | case '.': | |
156 | /* | |
157 | * Simulate end of file on input. | |
158 | */ | |
159 | goto eof; | |
160 | ||
161 | case 'q': | |
162 | case 'Q': | |
163 | /* | |
164 | * Force a quit of sending mail. | |
165 | * Act like an interrupt happened. | |
166 | */ | |
167 | ||
06300dd9 KS |
168 | hadintr++; |
169 | collrub(SIGINT); | |
170 | exit(1); | |
171 | ||
172 | case 'h': | |
173 | /* | |
174 | * Grab a bunch of headers. | |
175 | */ | |
176 | if (!intty || !outtty) { | |
177 | printf("~h: no can do!?\n"); | |
178 | break; | |
179 | } | |
180 | grabh(hp, GTO|GSUBJECT|GCC|GBCC); | |
181 | printf("(continue)\n"); | |
182 | break; | |
183 | ||
184 | case 't': | |
185 | /* | |
186 | * Add to the To list. | |
187 | */ | |
188 | ||
189 | hp->h_to = addto(hp->h_to, &linebuf[2]); | |
190 | hp->h_seq++; | |
191 | break; | |
192 | ||
193 | case 's': | |
194 | /* | |
195 | * Set the Subject list. | |
196 | */ | |
197 | ||
198 | cp = &linebuf[2]; | |
199 | while (any(*cp, " \t")) | |
200 | cp++; | |
201 | hp->h_subject = savestr(cp); | |
202 | hp->h_seq++; | |
203 | break; | |
204 | ||
205 | case 'c': | |
206 | /* | |
207 | * Add to the CC list. | |
208 | */ | |
209 | ||
210 | hp->h_cc = addto(hp->h_cc, &linebuf[2]); | |
211 | hp->h_seq++; | |
212 | break; | |
213 | ||
214 | case 'b': | |
215 | /* | |
216 | * Add stuff to blind carbon copies list. | |
217 | */ | |
218 | hp->h_bcc = addto(hp->h_bcc, &linebuf[2]); | |
219 | hp->h_seq++; | |
220 | break; | |
221 | ||
222 | case 'd': | |
223 | copy(deadletter, &linebuf[2]); | |
224 | /* fall into . . . */ | |
225 | ||
226 | case 'r': | |
227 | /* | |
228 | * Invoke a file: | |
229 | * Search for the file name, | |
230 | * then open it and copy the contents to obuf. | |
231 | */ | |
232 | ||
233 | cp = &linebuf[2]; | |
234 | while (any(*cp, " \t")) | |
235 | cp++; | |
236 | if (*cp == '\0') { | |
237 | printf("Interpolate what file?\n"); | |
238 | break; | |
239 | } | |
240 | cp = expand(cp); | |
241 | if (cp == NOSTR) | |
242 | break; | |
243 | if (isdir(cp)) { | |
244 | printf("%s: directory\n"); | |
245 | break; | |
246 | } | |
247 | if ((fbuf = fopen(cp, "r")) == NULL) { | |
248 | perror(cp); | |
249 | break; | |
250 | } | |
251 | printf("\"%s\" ", cp); | |
252 | flush(); | |
253 | lc = 0; | |
254 | cc = 0; | |
255 | while (readline(fbuf, linebuf) > 0) { | |
256 | lc++; | |
257 | if ((t = putline(obuf, linebuf)) < 0) { | |
258 | fclose(fbuf); | |
259 | goto err; | |
260 | } | |
261 | cc += t; | |
262 | } | |
263 | fclose(fbuf); | |
264 | printf("%d/%d\n", lc, cc); | |
265 | break; | |
266 | ||
267 | case 'w': | |
268 | /* | |
269 | * Write the message on a file. | |
270 | */ | |
271 | ||
272 | cp = &linebuf[2]; | |
273 | while (any(*cp, " \t")) | |
274 | cp++; | |
275 | if (*cp == '\0') { | |
276 | fprintf(stderr, "Write what file!?\n"); | |
277 | break; | |
278 | } | |
279 | if ((cp = expand(cp)) == NOSTR) | |
280 | break; | |
281 | fflush(obuf); | |
282 | rewind(ibuf); | |
283 | exwrite(cp, ibuf, 1); | |
284 | break; | |
285 | ||
286 | case 'm': | |
287 | case 'f': | |
288 | /* | |
289 | * Interpolate the named messages, if we | |
290 | * are in receiving mail mode. Does the | |
291 | * standard list processing garbage. | |
292 | * If ~f is given, we don't shift over. | |
293 | */ | |
294 | ||
295 | if (!rcvmode) { | |
296 | printf("No messages to send from!?!\n"); | |
297 | break; | |
298 | } | |
299 | cp = &linebuf[2]; | |
300 | while (any(*cp, " \t")) | |
301 | cp++; | |
302 | if (forward(cp, obuf, c) < 0) | |
303 | goto err; | |
304 | printf("(continue)\n"); | |
305 | break; | |
306 | ||
307 | case '?': | |
06300dd9 KS |
308 | if ((fbuf = fopen(THELPFILE, "r")) == NULL) { |
309 | printf("No help just now.\n"); | |
310 | break; | |
311 | } | |
312 | t = getc(fbuf); | |
313 | while (t != -1) { | |
314 | putchar(t); | |
315 | t = getc(fbuf); | |
316 | } | |
317 | fclose(fbuf); | |
318 | break; | |
319 | ||
320 | case 'p': | |
321 | /* | |
322 | * Print out the current state of the | |
323 | * message without altering anything. | |
324 | */ | |
325 | ||
326 | fflush(obuf); | |
327 | rewind(ibuf); | |
06300dd9 KS |
328 | printf("-------\nMessage contains:\n"); |
329 | puthead(hp, stdout, GTO|GSUBJECT|GCC|GBCC|GNL); | |
330 | t = getc(ibuf); | |
331 | while (t != EOF) { | |
332 | putchar(t); | |
333 | t = getc(ibuf); | |
334 | } | |
335 | printf("(continue)\n"); | |
336 | break; | |
337 | ||
338 | case '^': | |
339 | case '|': | |
340 | /* | |
341 | * Pipe message through command. | |
342 | * Collect output as new message. | |
343 | */ | |
344 | ||
345 | obuf = mespipe(ibuf, obuf, &linebuf[2]); | |
346 | newo = obuf; | |
347 | ibuf = newi; | |
348 | newi = ibuf; | |
349 | printf("(continue)\n"); | |
350 | break; | |
351 | ||
352 | case 'v': | |
353 | case 'e': | |
354 | /* | |
355 | * Edit the current message. | |
356 | * 'e' means to use EDITOR | |
357 | * 'v' means to use VISUAL | |
358 | */ | |
359 | ||
360 | if ((obuf = mesedit(ibuf, obuf, c)) == NULL) | |
361 | goto err; | |
362 | newo = obuf; | |
363 | ibuf = newi; | |
364 | printf("(continue)\n"); | |
365 | break; | |
366 | break; | |
367 | } | |
368 | } | |
369 | eof: | |
370 | fclose(obuf); | |
371 | rewind(ibuf); | |
7feecf47 KS |
372 | sigset(SIGINT, savesig); |
373 | sigset(SIGHUP, savehup); | |
97bff179 | 374 | sigset(SIGCONT, savecont); |
06300dd9 KS |
375 | noreset = 0; |
376 | return(ibuf); | |
377 | ||
378 | err: | |
379 | if (ibuf != NULL) | |
380 | fclose(ibuf); | |
381 | if (obuf != NULL) | |
382 | fclose(obuf); | |
7feecf47 KS |
383 | sigset(SIGINT, savesig); |
384 | sigset(SIGHUP, savehup); | |
2d55c063 | 385 | sigset(SIGCONT, savecont); |
06300dd9 KS |
386 | noreset = 0; |
387 | return(NULL); | |
388 | } | |
389 | ||
390 | /* | |
391 | * Non destructively interrogate the value of the given signal. | |
392 | */ | |
393 | ||
394 | psig(n) | |
395 | { | |
396 | register (*wassig)(); | |
397 | ||
7feecf47 KS |
398 | wassig = sigset(n, SIG_IGN); |
399 | sigset(n, wassig); | |
06300dd9 KS |
400 | return((int) wassig); |
401 | } | |
402 | ||
403 | /* | |
404 | * Write a file, ex-like if f set. | |
405 | */ | |
406 | ||
407 | exwrite(name, ibuf, f) | |
408 | char name[]; | |
409 | FILE *ibuf; | |
410 | { | |
411 | register FILE *of; | |
412 | register int c; | |
413 | long cc; | |
414 | int lc; | |
415 | struct stat junk; | |
416 | ||
417 | if (f) { | |
418 | printf("\"%s\" ", name); | |
419 | fflush(stdout); | |
420 | } | |
421 | if (stat(name, &junk) >= 0) { | |
422 | if (!f) | |
423 | fprintf(stderr, "%s: ", name); | |
424 | fprintf(stderr, "File exists\n", name); | |
425 | return(-1); | |
426 | } | |
427 | if ((of = fopen(name, "w")) == NULL) { | |
428 | perror(NOSTR); | |
429 | return(-1); | |
430 | } | |
431 | lc = 0; | |
432 | cc = 0; | |
433 | while ((c = getc(ibuf)) != EOF) { | |
434 | cc++; | |
435 | if (c == '\n') | |
436 | lc++; | |
437 | putc(c, of); | |
438 | if (ferror(of)) { | |
439 | perror(name); | |
440 | fclose(of); | |
441 | return(-1); | |
442 | } | |
443 | } | |
444 | fclose(of); | |
445 | printf("%d/%ld\n", lc, cc); | |
446 | fflush(stdout); | |
447 | return(0); | |
448 | } | |
449 | ||
450 | /* | |
451 | * Edit the message being collected on ibuf and obuf. | |
452 | * Write the message out onto some poorly-named temp file | |
453 | * and point an editor at it. | |
454 | * | |
455 | * On return, make the edit file the new temp file. | |
456 | */ | |
457 | ||
458 | FILE * | |
459 | mesedit(ibuf, obuf, c) | |
460 | FILE *ibuf, *obuf; | |
461 | { | |
462 | int pid, s; | |
463 | FILE *fbuf; | |
464 | register int t; | |
97bff179 | 465 | int (*sig)(), (*scont)(), foonly(); |
06300dd9 KS |
466 | struct stat sbuf; |
467 | extern char tempMail[], tempEdit[]; | |
468 | register char *edit; | |
469 | ||
7feecf47 | 470 | sig = sigset(SIGINT, SIG_IGN); |
97bff179 | 471 | scont = sigset(SIGCONT, foonly); |
06300dd9 KS |
472 | if (stat(tempEdit, &sbuf) >= 0) { |
473 | printf("%s: file exists\n", tempEdit); | |
474 | goto out; | |
475 | } | |
476 | close(creat(tempEdit, 0600)); | |
477 | if ((fbuf = fopen(tempEdit, "w")) == NULL) { | |
478 | perror(tempEdit); | |
479 | goto out; | |
480 | } | |
481 | fflush(obuf); | |
482 | rewind(ibuf); | |
483 | t = getc(ibuf); | |
484 | while (t != EOF) { | |
485 | putc(t, fbuf); | |
486 | t = getc(ibuf); | |
487 | } | |
488 | fflush(fbuf); | |
489 | if (ferror(fbuf)) { | |
490 | perror(tempEdit); | |
491 | remove(tempEdit); | |
492 | goto fix; | |
493 | } | |
494 | fclose(fbuf); | |
495 | if ((edit = value(c == 'e' ? "EDITOR" : "VISUAL")) == NOSTR) | |
496 | edit = c == 'e' ? EDITOR : VISUAL; | |
497 | pid = vfork(); | |
498 | if (pid == 0) { | |
499 | if (sig != SIG_IGN) | |
7feecf47 | 500 | sigsys(SIGINT, SIG_DFL); |
06300dd9 KS |
501 | execl(edit, edit, tempEdit, 0); |
502 | perror(edit); | |
503 | _exit(1); | |
504 | } | |
505 | if (pid == -1) { | |
506 | perror("fork"); | |
507 | remove(tempEdit); | |
508 | goto out; | |
509 | } | |
510 | while (wait(&s) != pid) | |
511 | ; | |
512 | if (s != 0) { | |
513 | printf("Fatal error in \"%s\"\n", edit); | |
514 | remove(tempEdit); | |
515 | goto out; | |
516 | } | |
517 | ||
518 | /* | |
519 | * Now switch to new file. | |
520 | */ | |
521 | ||
522 | if ((fbuf = fopen(tempEdit, "a")) == NULL) { | |
523 | perror(tempEdit); | |
524 | remove(tempEdit); | |
525 | goto out; | |
526 | } | |
527 | if ((ibuf = fopen(tempEdit, "r")) == NULL) { | |
528 | perror(tempEdit); | |
529 | fclose(fbuf); | |
530 | remove(tempEdit); | |
531 | goto out; | |
532 | } | |
533 | remove(tempEdit); | |
534 | fclose(obuf); | |
535 | fclose(newi); | |
536 | obuf = fbuf; | |
537 | goto out; | |
538 | fix: | |
539 | perror(tempEdit); | |
540 | out: | |
97bff179 | 541 | sigset(SIGCONT, scont); |
7feecf47 | 542 | sigset(SIGINT, sig); |
06300dd9 KS |
543 | newi = ibuf; |
544 | return(obuf); | |
545 | } | |
546 | ||
97bff179 KS |
547 | /* |
548 | * Currently, Berkeley virtual VAX/UNIX will not let you change the | |
549 | * disposition of SIGCONT, except to trap it somewhere new. | |
550 | * Hence, sigset(SIGCONT, foonly) is used to ignore continue signals. | |
551 | */ | |
552 | foonly() {} | |
553 | ||
06300dd9 KS |
554 | /* |
555 | * Pipe the message through the command. | |
556 | * Old message is on stdin of command; | |
557 | * New message collected from stdout. | |
558 | * Sh -c must return 0 to accept the new message. | |
559 | */ | |
560 | ||
561 | FILE * | |
562 | mespipe(ibuf, obuf, cmd) | |
563 | FILE *ibuf, *obuf; | |
564 | char cmd[]; | |
565 | { | |
566 | register FILE *ni, *no; | |
567 | int pid, s; | |
568 | int (*savesig)(); | |
569 | char *Shell; | |
570 | ||
571 | newi = ibuf; | |
572 | if ((no = fopen(tempEdit, "w")) == NULL) { | |
573 | perror(tempEdit); | |
574 | return(obuf); | |
575 | } | |
576 | if ((ni = fopen(tempEdit, "r")) == NULL) { | |
577 | perror(tempEdit); | |
578 | fclose(no); | |
579 | remove(tempEdit); | |
580 | return(obuf); | |
581 | } | |
582 | remove(tempEdit); | |
7feecf47 | 583 | savesig = sigset(SIGINT, SIG_IGN); |
06300dd9 KS |
584 | fflush(obuf); |
585 | rewind(ibuf); | |
586 | if ((Shell = value("SHELL")) == NULL) | |
587 | Shell = "/bin/sh"; | |
588 | if ((pid = vfork()) == -1) { | |
589 | perror("fork"); | |
590 | goto err; | |
591 | } | |
592 | if (pid == 0) { | |
593 | /* | |
594 | * stdin = current message. | |
595 | * stdout = new message. | |
596 | */ | |
597 | ||
598 | close(0); | |
599 | dup(fileno(ibuf)); | |
600 | close(1); | |
601 | dup(fileno(no)); | |
602 | for (s = 4; s < 15; s++) | |
603 | close(s); | |
604 | execl(Shell, Shell, "-c", cmd, 0); | |
605 | perror(Shell); | |
606 | _exit(1); | |
607 | } | |
608 | while (wait(&s) != pid) | |
609 | ; | |
610 | if (s != 0 || pid == -1) { | |
611 | fprintf(stderr, "\"%s\" failed!?\n", cmd); | |
612 | goto err; | |
613 | } | |
614 | if (fsize(ni) == 0) { | |
615 | fprintf(stderr, "No bytes from \"%s\" !?\n", cmd); | |
616 | goto err; | |
617 | } | |
618 | ||
619 | /* | |
620 | * Take new files. | |
621 | */ | |
622 | ||
623 | newi = ni; | |
624 | fclose(ibuf); | |
625 | fclose(obuf); | |
7feecf47 | 626 | sigset(SIGINT, savesig); |
06300dd9 KS |
627 | return(no); |
628 | ||
629 | err: | |
630 | fclose(no); | |
631 | fclose(ni); | |
7feecf47 | 632 | sigset(SIGINT, savesig); |
06300dd9 KS |
633 | return(obuf); |
634 | } | |
635 | ||
636 | /* | |
637 | * Interpolate the named messages into the current | |
638 | * message, preceding each line with a tab. | |
639 | * Return a count of the number of characters now in | |
640 | * the message, or -1 if an error is encountered writing | |
641 | * the message temporary. The flag argument is 'm' if we | |
642 | * should shift over and 'f' if not. | |
643 | */ | |
644 | ||
645 | forward(ms, obuf, f) | |
646 | char ms[]; | |
647 | FILE *obuf; | |
648 | { | |
649 | register int *msgvec, *ip; | |
650 | extern char tempMail[]; | |
651 | ||
652 | msgvec = (int *) salloc((msgCount+1) * sizeof *msgvec); | |
653 | if (msgvec == (int *) NOSTR) | |
654 | return(0); | |
655 | if (getmsglist(ms, msgvec, 0) < 0) | |
656 | return(0); | |
657 | if (*msgvec == NULL) { | |
658 | *msgvec = first(0, MMNORM); | |
659 | if (*msgvec == NULL) { | |
660 | printf("No appropriate messages\n"); | |
661 | return(0); | |
662 | } | |
663 | msgvec[1] = NULL; | |
664 | } | |
665 | printf("Interpolating:"); | |
666 | for (ip = msgvec; *ip != NULL; ip++) { | |
667 | touch(*ip); | |
668 | printf(" %d", *ip); | |
669 | if (f == 'm') { | |
670 | if (transmit(&message[*ip-1], obuf) < 0) { | |
671 | perror(tempMail); | |
672 | return(-1); | |
673 | } | |
674 | } else | |
675 | if (send(&message[*ip-1], obuf) < 0) { | |
676 | perror(tempMail); | |
677 | return(-1); | |
678 | } | |
679 | } | |
680 | printf("\n"); | |
681 | return(0); | |
682 | } | |
683 | ||
684 | /* | |
685 | * Send message described by the passed pointer to the | |
686 | * passed output buffer. Insert a tab in front of each | |
687 | * line. Return a count of the characters sent, or -1 | |
688 | * on error. | |
689 | */ | |
690 | ||
691 | transmit(mailp, obuf) | |
692 | struct message *mailp; | |
693 | FILE *obuf; | |
694 | { | |
695 | register struct message *mp; | |
696 | register int c, ch; | |
697 | int n, bol; | |
698 | FILE *ibuf; | |
699 | ||
700 | mp = mailp; | |
701 | ibuf = setinput(mp); | |
702 | c = msize(mp); | |
703 | n = c; | |
704 | bol = 1; | |
705 | while (c-- > 0) { | |
706 | if (bol) { | |
707 | bol = 0; | |
708 | putc('\t', obuf); | |
709 | n++; | |
710 | if (ferror(obuf)) { | |
711 | perror("/tmp"); | |
712 | return(-1); | |
713 | } | |
714 | } | |
715 | ch = getc(ibuf); | |
716 | if (ch == '\n') | |
717 | bol++; | |
718 | putc(ch, obuf); | |
719 | if (ferror(obuf)) { | |
720 | perror("/tmp"); | |
721 | return(-1); | |
722 | } | |
723 | } | |
724 | return(n); | |
725 | } | |
726 | ||
2d55c063 KS |
727 | /* |
728 | * Print (continue) when continued after ^Z. | |
729 | */ | |
730 | collcont(s) | |
731 | { | |
732 | ||
733 | printf("(continue)\n"); | |
734 | fflush(stdout); | |
735 | } | |
736 | ||
06300dd9 KS |
737 | /* |
738 | * On interrupt, go here to save the partial | |
7feecf47 | 739 | * message on ~/dead.letter. |
06300dd9 KS |
740 | * Then restore signals and execute the normal |
741 | * signal routine. We only come here if signals | |
742 | * were previously set anyway. | |
743 | */ | |
744 | ||
745 | collrub(s) | |
746 | { | |
747 | register FILE *dbuf; | |
748 | register int c; | |
749 | ||
7feecf47 | 750 | if (s == SIGINT && hadintr == 0) { |
06300dd9 KS |
751 | hadintr++; |
752 | clrbuf(stdout); | |
753 | printf("\n(Interrupt -- one more to kill letter)\n"); | |
97bff179 | 754 | sigrelse(s); |
06300dd9 KS |
755 | longjmp(coljmp, 1); |
756 | } | |
757 | fclose(newo); | |
758 | rewind(newi); | |
7feecf47 | 759 | if (s == SIGINT && value("nosave") != NOSTR || fsize(newi) == 0) |
06300dd9 KS |
760 | goto done; |
761 | if ((dbuf = fopen(deadletter, "w")) == NULL) | |
762 | goto done; | |
763 | chmod(deadletter, 0600); | |
764 | while ((c = getc(newi)) != EOF) | |
765 | putc(c, dbuf); | |
766 | fclose(dbuf); | |
767 | ||
768 | done: | |
769 | fclose(newi); | |
7feecf47 KS |
770 | sigset(SIGINT, savesig); |
771 | sigset(SIGHUP, savehup); | |
2d55c063 | 772 | sigset(SIGCONT, savecont); |
7feecf47 KS |
773 | if (rcvmode) { |
774 | if (s == SIGHUP) | |
775 | hangup(SIGHUP); | |
776 | else | |
2d55c063 | 777 | stop(s); |
7feecf47 | 778 | } |
06300dd9 KS |
779 | else |
780 | exit(1); | |
781 | } | |
782 | ||
783 | /* | |
784 | * Acknowledge an interrupt signal from the tty by typing an @ | |
785 | */ | |
786 | ||
787 | intack(s) | |
788 | { | |
789 | ||
2d55c063 | 790 | sigrelse(SIGCONT); |
06300dd9 KS |
791 | puts("@"); |
792 | fflush(stdout); | |
793 | clearerr(stdin); | |
06300dd9 KS |
794 | } |
795 | ||
796 | /* | |
797 | * Add a string to the end of a header entry field. | |
798 | */ | |
799 | ||
800 | char * | |
801 | addto(hf, news) | |
802 | char hf[], news[]; | |
803 | { | |
804 | register char *cp, *cp2, *linebuf; | |
805 | ||
806 | if (hf == NOSTR) | |
807 | hf = ""; | |
808 | if (*news == '\0') | |
809 | return(hf); | |
810 | linebuf = salloc(strlen(hf) + strlen(news) + 2); | |
811 | for (cp = hf; any(*cp, " \t"); cp++) | |
812 | ; | |
813 | for (cp2 = linebuf; *cp;) | |
814 | *cp2++ = *cp++; | |
815 | *cp2++ = ' '; | |
816 | for (cp = news; any(*cp, " \t"); cp++) | |
817 | ; | |
818 | while (*cp != '\0') | |
819 | *cp2++ = *cp++; | |
820 | *cp2 = '\0'; | |
821 | return(linebuf); | |
822 | } |