Commit | Line | Data |
---|---|---|
46ebe0eb | 1 | #ifndef lint |
00f74c2b | 2 | static char sccsid[] = "@(#)msgs.c 4.12 (Berkeley) %G%"; |
46ebe0eb RH |
3 | #endif lint |
4 | /* | |
5 | * msgs - a user bulletin board program | |
6 | * | |
7 | * usage: | |
8 | * msgs [fhlopq] [[-]number] to read messages | |
9 | * msgs -s to place messages | |
10 | * msgs -c [-days] to clean up the bulletin board | |
11 | * | |
12 | * prompt commands are: | |
13 | * y print message | |
14 | * n flush message, go to next message | |
15 | * q flush message, quit | |
16 | * p print message, turn on 'pipe thru more' mode | |
17 | * P print message, turn off 'pipe thru more' mode | |
18 | * - reprint last message | |
19 | * s[-][<num>] [<filename>] save message | |
20 | * m[-][<num>] mail with message in temp mbox | |
21 | * x exit without flushing this message | |
22 | */ | |
23 | ||
24 | #define V7 /* will look for TERM in the environment */ | |
25 | #define OBJECT /* will object to messages without Subjects */ | |
26 | /* #define REJECT /* will reject messages without Subjects | |
27 | (OBJECT must be defined also) */ | |
28 | /* #define UNBUFFERED /* use unbuffered output */ | |
29 | ||
30 | #include <stdio.h> | |
2e3d53b4 | 31 | #include <sys/param.h> |
46ebe0eb | 32 | #include <signal.h> |
0588cc8c | 33 | #include <sys/dir.h> |
46ebe0eb RH |
34 | #include <sys/stat.h> |
35 | #include <ctype.h> | |
36 | #include <pwd.h> | |
37 | #include <sgtty.h> | |
e7127e6a | 38 | #include <setjmp.h> |
46ebe0eb RH |
39 | #include "msgs.h" |
40 | ||
41 | #define CMODE 0666 /* bounds file creation mode */ | |
42 | #define NO 0 | |
43 | #define YES 1 | |
44 | #define SUPERUSER 0 /* superuser uid */ | |
45 | #define DAEMON 1 /* daemon uid */ | |
46 | #define NLINES 24 /* default number of lines/crt screen */ | |
47 | #define NDAYS 21 /* default keep time for messages */ | |
48 | #define DAYS *24*60*60 /* seconds/day */ | |
49 | #define TEMP "/tmp/msgXXXXXX" | |
50 | #define MSGSRC ".msgsrc" /* user's rc file */ | |
51 | #define BOUNDS "bounds" /* message bounds file */ | |
52 | #define NEXT "Next message? [yq]" | |
53 | #define MORE "More? [ynq]" | |
54 | #define NOMORE "(No more) [q] ?" | |
55 | ||
56 | typedef char bool; | |
57 | ||
58 | FILE *newmsg; | |
59 | char *sep = "-"; | |
60 | char inbuf[BUFSIZ]; | |
61 | char fname[128]; | |
62 | char cmdbuf[128]; | |
63 | char subj[128]; | |
64 | char from[128]; | |
65 | char date[128]; | |
66 | char *ptr; | |
67 | char *in; | |
68 | bool local; | |
69 | bool ruptible; | |
70 | bool totty; | |
71 | bool seenfrom; | |
72 | bool seensubj; | |
73 | bool blankline; | |
74 | bool printing = NO; | |
75 | bool mailing = NO; | |
76 | bool quitit = NO; | |
77 | bool sending = NO; | |
78 | bool intrpflg = NO; | |
4bdc6489 | 79 | bool tstpflag = NO; |
46ebe0eb RH |
80 | int uid; |
81 | int msg; | |
82 | int prevmsg; | |
83 | int lct; | |
84 | int nlines; | |
85 | int Lpp = NLINES; | |
86 | time_t t; | |
87 | time_t keep; | |
88 | struct sgttyb otty; | |
89 | ||
90 | char *ctime(); | |
91 | char *nxtfld(); | |
92 | int onintr(); | |
4bdc6489 | 93 | int onsusp(); |
46ebe0eb RH |
94 | off_t ftell(); |
95 | FILE *popen(); | |
96 | struct passwd *getpwuid(); | |
97 | ||
98 | extern int errno; | |
99 | ||
100 | /* option initialization */ | |
101 | bool hdrs = NO; | |
102 | bool qopt = NO; | |
103 | bool hush = NO; | |
104 | bool send = NO; | |
105 | bool locomode = NO; | |
106 | bool pause = NO; | |
107 | bool clean = NO; | |
108 | bool lastcmd = NO; | |
e7127e6a | 109 | jmp_buf tstpbuf; |
46ebe0eb RH |
110 | |
111 | main(argc, argv) | |
112 | int argc; char *argv[]; | |
113 | { | |
114 | bool newrc, already; | |
115 | int rcfirst = 0; /* first message to print (from .rc) */ | |
ef7d2615 | 116 | int rcback = 0; /* amount to back off of rcfirst */ |
46ebe0eb RH |
117 | int firstmsg, nextmsg, lastmsg = 0; |
118 | int blast = 0; | |
119 | FILE *bounds, *msgsrc; | |
120 | ||
121 | #ifndef UNBUFFERED | |
122 | char obuf[BUFSIZ]; | |
123 | setbuf(stdout, obuf); | |
124 | #else | |
125 | setbuf(stdout, NULL); | |
126 | #endif | |
127 | ||
128 | gtty(fileno(stdout), &otty); | |
129 | time(&t); | |
130 | setuid(uid = getuid()); | |
131 | ruptible = (signal(SIGINT, SIG_IGN) == SIG_DFL); | |
132 | if (ruptible) | |
133 | signal(SIGINT, SIG_DFL); | |
134 | ||
135 | argc--, argv++; | |
136 | while (argc > 0) { | |
137 | if (isdigit(argv[0][0])) { /* starting message # */ | |
138 | rcfirst = atoi(argv[0]); | |
139 | } | |
140 | else if (isdigit(argv[0][1])) { /* backward offset */ | |
141 | rcback = atoi( &( argv[0][1] ) ); | |
142 | } | |
143 | else { | |
144 | ptr = *argv; | |
145 | while (*ptr) switch (*ptr++) { | |
146 | ||
147 | case '-': | |
148 | break; | |
149 | ||
150 | case 'c': | |
151 | if (uid != SUPERUSER && uid != DAEMON) { | |
152 | fprintf(stderr, "Sorry\n"); | |
153 | exit(1); | |
154 | } | |
155 | clean = YES; | |
156 | break; | |
157 | ||
158 | case 'f': /* silently */ | |
159 | hush = YES; | |
160 | break; | |
161 | ||
162 | case 'h': /* headers only */ | |
163 | hdrs = YES; | |
164 | break; | |
165 | ||
166 | case 'l': /* local msgs only */ | |
167 | locomode = YES; | |
168 | break; | |
169 | ||
170 | case 'o': /* option to save last message */ | |
171 | lastcmd = YES; | |
172 | break; | |
173 | ||
174 | case 'p': /* pipe thru 'more' during long msgs */ | |
175 | pause = YES; | |
176 | break; | |
177 | ||
178 | case 'q': /* query only */ | |
179 | qopt = YES; | |
180 | break; | |
181 | ||
182 | case 's': /* sending TO msgs */ | |
183 | send = YES; | |
184 | break; | |
185 | ||
186 | default: | |
187 | fprintf(stderr, | |
188 | "usage: msgs [fhlopq] [[-]number]\n"); | |
189 | exit(1); | |
190 | } | |
191 | } | |
192 | argc--, argv++; | |
193 | } | |
194 | ||
195 | /* | |
196 | * determine current message bounds | |
197 | */ | |
198 | sprintf(fname, "%s/%s", USRMSGS, BOUNDS); | |
199 | bounds = fopen(fname, "r"); | |
200 | ||
201 | if (bounds != NULL) { | |
202 | fscanf(bounds, "%d %d\n", &firstmsg, &lastmsg); | |
203 | fclose(bounds); | |
204 | blast = lastmsg; /* save upper bound */ | |
205 | } | |
206 | ||
207 | if (clean) | |
208 | keep = t - (rcback? rcback : NDAYS) DAYS; | |
209 | ||
210 | if (clean || bounds == NULL) { /* relocate message bounds */ | |
2e3d53b4 | 211 | struct direct *dp; |
46ebe0eb RH |
212 | struct stat stbuf; |
213 | bool seenany = NO; | |
2e3d53b4 | 214 | DIR *dirp; |
46ebe0eb | 215 | |
2e3d53b4 RH |
216 | dirp = opendir(USRMSGS); |
217 | if (dirp == NULL) { | |
46ebe0eb RH |
218 | perror(USRMSGS); |
219 | exit(errno); | |
220 | } | |
221 | ||
222 | firstmsg = 32767; | |
223 | lastmsg = 0; | |
224 | ||
2e3d53b4 RH |
225 | for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)){ |
226 | register char *cp = dp->d_name; | |
46ebe0eb RH |
227 | register int i = 0; |
228 | ||
2e3d53b4 RH |
229 | if (dp->d_ino == 0) |
230 | continue; | |
231 | if (dp->d_namlen == 0) | |
46ebe0eb RH |
232 | continue; |
233 | ||
234 | if (clean) | |
235 | sprintf(inbuf, "%s/%s", USRMSGS, cp); | |
236 | ||
237 | while (isdigit(*cp)) | |
238 | i = i * 10 + *cp++ - '0'; | |
239 | if (*cp) | |
240 | continue; /* not a message! */ | |
241 | ||
242 | if (clean) { | |
243 | if (stat(inbuf, &stbuf) != 0) | |
244 | continue; | |
245 | if (stbuf.st_mtime < keep | |
246 | && stbuf.st_mode&S_IWRITE) { | |
247 | unlink(inbuf); | |
248 | continue; | |
249 | } | |
250 | } | |
251 | ||
252 | if (i > lastmsg) | |
253 | lastmsg = i; | |
254 | if (i < firstmsg) | |
255 | firstmsg = i; | |
256 | seenany = YES; | |
257 | } | |
2e3d53b4 | 258 | closedir(dirp); |
46ebe0eb RH |
259 | |
260 | if (!seenany) { | |
261 | if (blast != 0) /* never lower the upper bound! */ | |
262 | lastmsg = blast; | |
263 | firstmsg = lastmsg + 1; | |
264 | } | |
265 | else if (blast > lastmsg) | |
266 | lastmsg = blast; | |
267 | ||
268 | if (!send) { | |
269 | bounds = fopen(fname, "w"); | |
270 | if (bounds == NULL) { | |
271 | perror(fname); | |
272 | exit(errno); | |
273 | } | |
274 | chmod(fname, CMODE); | |
275 | fprintf(bounds, "%d %d\n", firstmsg, lastmsg); | |
276 | fclose(bounds); | |
277 | } | |
278 | } | |
279 | ||
280 | if (send) { | |
281 | /* | |
282 | * Send mode - place msgs in USRMSGS | |
283 | */ | |
284 | bounds = fopen(fname, "w"); | |
285 | if (bounds == NULL) { | |
286 | perror(fname); | |
287 | exit(errno); | |
288 | } | |
289 | ||
290 | nextmsg = lastmsg + 1; | |
291 | sprintf(fname, "%s/%d", USRMSGS, nextmsg); | |
292 | newmsg = fopen(fname, "w"); | |
293 | if (newmsg == NULL) { | |
294 | perror(fname); | |
295 | exit(errno); | |
296 | } | |
297 | chmod(fname, 0644); | |
298 | ||
299 | fprintf(bounds, "%d %d\n", firstmsg, nextmsg); | |
300 | fclose(bounds); | |
301 | ||
302 | sending = YES; | |
303 | if (ruptible) | |
304 | signal(SIGINT, onintr); | |
305 | ||
306 | if (isatty(fileno(stdin))) { | |
307 | ptr = getpwuid(uid)->pw_name; | |
308 | printf("Message %d:\nFrom %s %sSubject: ", | |
309 | nextmsg, ptr, ctime(&t)); | |
310 | fflush(stdout); | |
311 | fgets(inbuf, sizeof inbuf, stdin); | |
312 | putchar('\n'); | |
313 | fflush(stdout); | |
314 | fprintf(newmsg, "From %s %sSubject: %s\n", | |
315 | ptr, ctime(&t), inbuf); | |
316 | blankline = seensubj = YES; | |
317 | } | |
318 | else | |
319 | blankline = seensubj = NO; | |
320 | for (;;) { | |
321 | fgets(inbuf, sizeof inbuf, stdin); | |
322 | if (feof(stdin) || ferror(stdin)) | |
323 | break; | |
324 | blankline = (blankline || (inbuf[0] == '\n')); | |
325 | seensubj = (seensubj || (!blankline && (strncmp(inbuf, "Subj", 4) == 0))); | |
326 | fputs(inbuf, newmsg); | |
327 | } | |
328 | #ifdef OBJECT | |
329 | if (!seensubj) { | |
330 | printf("NOTICE: Messages should have a Subject field!\n"); | |
331 | #ifdef REJECT | |
332 | unlink(fname); | |
333 | #endif | |
334 | exit(1); | |
335 | } | |
336 | #endif | |
337 | exit(ferror(stdin)); | |
338 | } | |
339 | if (clean) | |
340 | exit(0); | |
341 | ||
342 | /* | |
343 | * prepare to display messages | |
344 | */ | |
345 | totty = (isatty(fileno(stdout)) != 0); | |
346 | pause = pause && totty; | |
347 | ||
348 | sprintf(fname, "%s/%s", getenv("HOME"), MSGSRC); | |
349 | msgsrc = fopen(fname, "r"); | |
350 | if (msgsrc) { | |
351 | newrc = NO; | |
352 | fscanf(msgsrc, "%d\n", &nextmsg); | |
353 | fclose(msgsrc); | |
354 | if (!rcfirst) | |
355 | rcfirst = nextmsg - rcback; | |
356 | } | |
357 | else { | |
358 | newrc = YES; | |
359 | nextmsg = 0; | |
360 | } | |
361 | msgsrc = fopen(fname, "a"); | |
362 | if (msgsrc == NULL) { | |
363 | perror(fname); | |
364 | exit(errno); | |
365 | } | |
ef7d2615 RC |
366 | if (rcfirst && rcfirst > firstmsg) |
367 | firstmsg = rcfirst; /* don't set below first msg */ | |
46ebe0eb RH |
368 | if (newrc) { |
369 | nextmsg = firstmsg; | |
370 | fseek(msgsrc, 0L, 0); | |
371 | fprintf(msgsrc, "%d\n", nextmsg); | |
372 | fflush(msgsrc); | |
373 | } | |
374 | ||
375 | #ifdef V7 | |
376 | if (totty) { | |
377 | if (tgetent(inbuf, getenv("TERM")) <= 0 | |
378 | || (Lpp = tgetnum("li")) <= 0) { | |
379 | Lpp = NLINES; | |
380 | } | |
381 | } | |
382 | #endif | |
383 | Lpp -= 6; /* for headers, etc. */ | |
384 | ||
385 | already = NO; | |
386 | prevmsg = firstmsg; | |
387 | printing = YES; | |
388 | if (ruptible) | |
389 | signal(SIGINT, onintr); | |
390 | ||
391 | /* | |
392 | * Main program loop | |
393 | */ | |
394 | for (msg = firstmsg; msg <= lastmsg; msg++) { | |
395 | ||
396 | sprintf(fname, "%s/%d", USRMSGS, msg); | |
397 | newmsg = fopen(fname, "r"); | |
398 | if (newmsg == NULL) | |
399 | continue; | |
400 | ||
401 | gfrsub(newmsg); /* get From and Subject fields */ | |
402 | if (locomode && !local) { | |
403 | fclose(newmsg); | |
404 | continue; | |
405 | } | |
406 | ||
407 | if (qopt) { /* This has to be located here */ | |
408 | printf("There are new messages.\n"); | |
409 | exit(0); | |
410 | } | |
411 | ||
412 | if (already && !hdrs) | |
413 | putchar('\n'); | |
414 | already = YES; | |
415 | ||
416 | /* | |
417 | * Print header | |
418 | */ | |
4bdc6489 | 419 | again: |
4bdc6489 CL |
420 | if (totty) |
421 | signal(SIGTSTP, onsusp); | |
e7127e6a | 422 | (void) setjmp(tstpbuf); |
46ebe0eb RH |
423 | nlines = 2; |
424 | if (seenfrom) { | |
425 | printf("Message %d:\nFrom %s %s", msg, from, date); | |
426 | nlines++; | |
427 | } | |
428 | if (seensubj) { | |
429 | printf("Subject: %s", subj); | |
430 | nlines++; | |
431 | } | |
432 | else { | |
433 | if (seenfrom) { | |
434 | putchar('\n'); | |
435 | nlines++; | |
436 | } | |
437 | while (nlines < 6 | |
438 | && fgets(inbuf, sizeof inbuf, newmsg) | |
439 | && inbuf[0] != '\n') { | |
440 | fputs(inbuf, stdout); | |
441 | nlines++; | |
442 | } | |
443 | } | |
444 | ||
445 | lct = linecnt(newmsg); | |
446 | if (lct) | |
447 | printf("(%d%slines) ", lct, seensubj? " " : " more "); | |
448 | ||
449 | if (hdrs) { | |
450 | printf("\n-----\n"); | |
451 | fclose(newmsg); | |
452 | continue; | |
453 | } | |
454 | ||
455 | /* | |
456 | * Ask user for command | |
457 | */ | |
458 | if (totty) | |
459 | ask(lct? MORE : (msg==lastmsg? NOMORE : NEXT)); | |
460 | else | |
461 | inbuf[0] = 'y'; | |
4bdc6489 CL |
462 | if (totty) |
463 | signal(SIGTSTP, SIG_DFL); | |
46ebe0eb RH |
464 | cmnd: |
465 | in = inbuf; | |
466 | switch (*in) { | |
467 | case 'x': | |
468 | case 'X': | |
469 | exit(0); | |
470 | ||
471 | case 'q': | |
472 | case 'Q': | |
473 | quitit = YES; | |
474 | printf("--Postponed--\n"); | |
475 | exit(0); | |
476 | /* intentional fall-thru */ | |
477 | case 'n': | |
478 | case 'N': | |
479 | if (msg >= nextmsg) sep = "Flushed"; | |
af075600 | 480 | prevmsg = msg; |
46ebe0eb RH |
481 | break; |
482 | ||
483 | case 'p': | |
484 | case 'P': | |
485 | pause = (*in++ == 'p'); | |
486 | /* intentional fallthru */ | |
487 | case '\n': | |
488 | case 'y': | |
489 | default: | |
490 | if (*in == '-') { | |
491 | msg = prevmsg-1; | |
492 | sep = "replay"; | |
493 | break; | |
494 | } | |
495 | if (isdigit(*in)) { | |
496 | msg = next(in); | |
497 | sep = in; | |
498 | break; | |
499 | } | |
500 | ||
501 | prmesg(nlines + lct + (seensubj? 1 : 0)); | |
502 | prevmsg = msg; | |
503 | ||
504 | } | |
505 | ||
506 | printf("--%s--\n", sep); | |
507 | sep = "-"; | |
508 | if (msg >= nextmsg) { | |
509 | nextmsg = msg + 1; | |
510 | fseek(msgsrc, 0L, 0); | |
511 | fprintf(msgsrc, "%d\n", nextmsg); | |
512 | fflush(msgsrc); | |
513 | } | |
514 | if (newmsg) | |
515 | fclose(newmsg); | |
516 | if (quitit) | |
517 | break; | |
518 | } | |
519 | ||
186baa0c CL |
520 | /* |
521 | * Make sure .rc file gets updated | |
522 | */ | |
523 | if (--msg >= nextmsg) { | |
524 | nextmsg = msg + 1; | |
525 | fseek(msgsrc, 0L, 0); | |
526 | fprintf(msgsrc, "%d\n", nextmsg); | |
527 | fflush(msgsrc); | |
528 | } | |
46ebe0eb RH |
529 | if (already && !quitit && lastcmd && totty) { |
530 | /* | |
531 | * save or reply to last message? | |
532 | */ | |
533 | msg = prevmsg; | |
534 | ask(NOMORE); | |
535 | if (inbuf[0] == '-' || isdigit(inbuf[0])) | |
536 | goto cmnd; | |
537 | } | |
538 | if (!(already || hush || qopt)) | |
539 | printf("No new messages.\n"); | |
540 | exit(0); | |
541 | } | |
542 | ||
543 | prmesg(length) | |
544 | int length; | |
545 | { | |
546 | FILE *outf, *inf; | |
547 | int c; | |
548 | ||
549 | if (pause && length > Lpp) { | |
00f74c2b RC |
550 | signal(SIGPIPE, SIG_IGN); |
551 | signal(SIGQUIT, SIG_IGN); | |
46ebe0eb RH |
552 | sprintf(cmdbuf, PAGE, Lpp); |
553 | outf = popen(cmdbuf, "w"); | |
554 | if (!outf) | |
555 | outf = stdout; | |
556 | else | |
557 | setbuf(outf, NULL); | |
558 | } | |
559 | else | |
560 | outf = stdout; | |
561 | ||
562 | if (seensubj) | |
563 | putc('\n', outf); | |
564 | ||
00f74c2b | 565 | while (fgets(inbuf, sizeof inbuf, newmsg)) { |
46ebe0eb | 566 | fputs(inbuf, outf); |
00f74c2b RC |
567 | if (ferror(outf)) |
568 | break; | |
569 | } | |
46ebe0eb RH |
570 | |
571 | if (outf != stdout) { | |
572 | pclose(outf); | |
00f74c2b RC |
573 | signal(SIGPIPE, SIG_DFL); |
574 | signal(SIGQUIT, SIG_DFL); | |
46ebe0eb RH |
575 | } |
576 | else { | |
577 | fflush(stdout); | |
578 | } | |
579 | ||
580 | /* trick to force wait on output */ | |
581 | stty(fileno(stdout), &otty); | |
582 | } | |
583 | ||
584 | onintr() | |
585 | { | |
586 | signal(SIGINT, onintr); | |
587 | if (mailing) | |
588 | unlink(fname); | |
589 | if (sending) { | |
590 | unlink(fname); | |
591 | puts("--Killed--"); | |
592 | exit(1); | |
593 | } | |
594 | if (printing) { | |
595 | putchar('\n'); | |
596 | if (hdrs) | |
597 | exit(0); | |
598 | sep = "Interrupt"; | |
599 | if (newmsg) | |
600 | fseek(newmsg, 0L, 2); | |
601 | intrpflg = YES; | |
602 | } | |
603 | } | |
604 | ||
4bdc6489 CL |
605 | /* |
606 | * We have just gotten a susp. Suspend and prepare to resume. | |
607 | */ | |
608 | onsusp() | |
609 | { | |
e7127e6a | 610 | |
4bdc6489 | 611 | signal(SIGTSTP, SIG_DFL); |
21cbf623 | 612 | sigsetmask(0); |
4bdc6489 | 613 | kill(0, SIGTSTP); |
4bdc6489 | 614 | signal(SIGTSTP, onsusp); |
e7127e6a | 615 | longjmp(tstpbuf); |
4bdc6489 CL |
616 | } |
617 | ||
46ebe0eb RH |
618 | linecnt(f) |
619 | FILE *f; | |
620 | { | |
621 | off_t oldpos = ftell(f); | |
622 | int l = 0; | |
623 | char lbuf[BUFSIZ]; | |
624 | ||
625 | while (fgets(lbuf, sizeof lbuf, f)) | |
626 | l++; | |
627 | clearerr(f); | |
628 | fseek(f, oldpos, 0); | |
629 | return (l); | |
630 | } | |
631 | ||
632 | next(buf) | |
633 | char *buf; | |
634 | { | |
635 | int i; | |
636 | sscanf(buf, "%d", &i); | |
637 | sprintf(buf, "Goto %d", i); | |
638 | return(--i); | |
639 | } | |
640 | ||
641 | ask(prompt) | |
642 | char *prompt; | |
643 | { | |
644 | char inch; | |
645 | int n, cmsg; | |
646 | off_t oldpos; | |
647 | FILE *cpfrom, *cpto; | |
648 | ||
649 | printf("%s ", prompt); | |
650 | fflush(stdout); | |
651 | intrpflg = NO; | |
652 | gets(inbuf); | |
653 | if (intrpflg) | |
654 | inbuf[0] = 'x'; | |
655 | ||
656 | /* | |
657 | * Handle 'mail' and 'save' here. | |
658 | */ | |
659 | if ((inch = inbuf[0]) == 's' || inch == 'm') { | |
660 | if (inbuf[1] == '-') | |
661 | cmsg = prevmsg; | |
662 | else if (isdigit(inbuf[1])) | |
663 | cmsg = atoi(&inbuf[1]); | |
664 | else | |
665 | cmsg = msg; | |
666 | sprintf(fname, "%s/%d", USRMSGS, cmsg); | |
667 | ||
668 | oldpos = ftell(newmsg); | |
669 | ||
670 | cpfrom = fopen(fname, "r"); | |
671 | if (!cpfrom) { | |
672 | printf("Message %d not found\n", cmsg); | |
673 | ask (prompt); | |
674 | return; | |
675 | } | |
676 | ||
677 | if (inch == 's') { | |
678 | in = nxtfld(inbuf); | |
679 | if (*in) { | |
680 | for (n=0; in[n] > ' '; n++) { /* sizeof fname? */ | |
681 | fname[n] = in[n]; | |
682 | } | |
683 | fname[n] = NULL; | |
684 | } | |
685 | else | |
686 | strcpy(fname, "Messages"); | |
687 | } | |
688 | else { | |
689 | strcpy(fname, TEMP); | |
690 | mktemp(fname); | |
691 | sprintf(cmdbuf, MAIL, fname); | |
692 | mailing = YES; | |
693 | } | |
694 | cpto = fopen(fname, "a"); | |
695 | if (!cpto) { | |
696 | perror(fname); | |
697 | mailing = NO; | |
698 | fseek(newmsg, oldpos, 0); | |
699 | ask(prompt); | |
700 | return; | |
701 | } | |
702 | ||
703 | while (n = fread(inbuf, 1, sizeof inbuf, cpfrom)) | |
704 | fwrite(inbuf, 1, n, cpto); | |
705 | ||
706 | fclose(cpfrom); | |
707 | fclose(cpto); | |
708 | fseek(newmsg, oldpos, 0); /* reposition current message */ | |
709 | if (inch == 's') | |
710 | printf("Message %d saved in \"%s\"\n", cmsg, fname); | |
711 | else { | |
712 | system(cmdbuf); | |
713 | unlink(fname); | |
714 | mailing = NO; | |
715 | } | |
716 | ask(prompt); | |
717 | } | |
718 | } | |
719 | ||
720 | gfrsub(infile) | |
721 | FILE *infile; | |
722 | { | |
723 | off_t frompos; | |
724 | ||
725 | seensubj = seenfrom = NO; | |
726 | local = YES; | |
727 | subj[0] = from[0] = date[0] = NULL; | |
728 | ||
729 | /* | |
730 | * Is this a normal message? | |
731 | */ | |
732 | if (fgets(inbuf, sizeof inbuf, infile)) { | |
733 | if (strncmp(inbuf, "From", 4)==0) { | |
734 | /* | |
735 | * expected form starts with From | |
736 | */ | |
737 | seenfrom = YES; | |
738 | frompos = ftell(infile); | |
739 | ptr = from; | |
740 | in = nxtfld(inbuf); | |
741 | if (*in) while (*in && *in > ' ') { | |
41c894fb | 742 | if (*in == ':' || *in == '@' || *in == '!') |
46ebe0eb RH |
743 | local = NO; |
744 | *ptr++ = *in++; | |
745 | /* what about sizeof from ? */ | |
746 | } | |
747 | *ptr = NULL; | |
748 | if (*(in = nxtfld(in))) | |
749 | strncpy(date, in, sizeof date); | |
750 | else { | |
751 | date[0] = '\n'; | |
752 | date[1] = NULL; | |
753 | } | |
754 | } | |
755 | else { | |
756 | /* | |
757 | * not the expected form | |
758 | */ | |
759 | fseek(infile, 0L, 0); | |
760 | return; | |
761 | } | |
762 | } | |
763 | else | |
764 | /* | |
765 | * empty file ? | |
766 | */ | |
767 | return; | |
768 | ||
769 | /* | |
770 | * look for Subject line until EOF or a blank line | |
771 | */ | |
772 | while (fgets(inbuf, sizeof inbuf, infile) | |
773 | && !(blankline = (inbuf[0] == '\n'))) { | |
774 | /* | |
775 | * extract Subject line | |
776 | */ | |
777 | if (!seensubj && strncmp(inbuf, "Subj", 4)==0) { | |
778 | seensubj = YES; | |
779 | frompos = ftell(infile); | |
780 | strncpy(subj, nxtfld(inbuf), sizeof subj); | |
781 | } | |
782 | } | |
783 | if (!blankline) | |
784 | /* | |
785 | * ran into EOF | |
786 | */ | |
787 | fseek(infile, frompos, 0); | |
788 | ||
789 | if (!seensubj) | |
790 | /* | |
791 | * for possible use with Mail | |
792 | */ | |
793 | strncpy(subj, "(No Subject)\n", sizeof subj); | |
794 | } | |
795 | ||
796 | char * | |
797 | nxtfld(s) | |
798 | char *s; | |
799 | { | |
800 | if (*s) while (*s && *s > ' ') s++; /* skip over this field */ | |
801 | if (*s) while (*s && *s <= ' ') s++; /* find start of next field */ | |
802 | return (s); | |
803 | } |