Commit | Line | Data |
---|---|---|
46ebe0eb | 1 | #ifndef lint |
41c894fb | 2 | static char sccsid[] = "@(#)msgs.c 4.4 %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> |
41c894fb | 33 | #include <dir.h> |
46ebe0eb RH |
34 | #include <sys/stat.h> |
35 | #include <ctype.h> | |
36 | #include <pwd.h> | |
37 | #include <sgtty.h> | |
38 | #include "msgs.h" | |
39 | ||
40 | #define CMODE 0666 /* bounds file creation mode */ | |
41 | #define NO 0 | |
42 | #define YES 1 | |
43 | #define SUPERUSER 0 /* superuser uid */ | |
44 | #define DAEMON 1 /* daemon uid */ | |
45 | #define NLINES 24 /* default number of lines/crt screen */ | |
46 | #define NDAYS 21 /* default keep time for messages */ | |
47 | #define DAYS *24*60*60 /* seconds/day */ | |
48 | #define TEMP "/tmp/msgXXXXXX" | |
49 | #define MSGSRC ".msgsrc" /* user's rc file */ | |
50 | #define BOUNDS "bounds" /* message bounds file */ | |
51 | #define NEXT "Next message? [yq]" | |
52 | #define MORE "More? [ynq]" | |
53 | #define NOMORE "(No more) [q] ?" | |
54 | ||
55 | typedef char bool; | |
56 | ||
57 | FILE *newmsg; | |
58 | char *sep = "-"; | |
59 | char inbuf[BUFSIZ]; | |
60 | char fname[128]; | |
61 | char cmdbuf[128]; | |
62 | char subj[128]; | |
63 | char from[128]; | |
64 | char date[128]; | |
65 | char *ptr; | |
66 | char *in; | |
67 | bool local; | |
68 | bool ruptible; | |
69 | bool totty; | |
70 | bool seenfrom; | |
71 | bool seensubj; | |
72 | bool blankline; | |
73 | bool printing = NO; | |
74 | bool mailing = NO; | |
75 | bool quitit = NO; | |
76 | bool sending = NO; | |
77 | bool intrpflg = NO; | |
78 | int uid; | |
79 | int msg; | |
80 | int prevmsg; | |
81 | int lct; | |
82 | int nlines; | |
83 | int Lpp = NLINES; | |
84 | time_t t; | |
85 | time_t keep; | |
86 | struct sgttyb otty; | |
87 | ||
88 | char *ctime(); | |
89 | char *nxtfld(); | |
90 | int onintr(); | |
91 | off_t ftell(); | |
92 | FILE *popen(); | |
93 | struct passwd *getpwuid(); | |
94 | ||
95 | extern int errno; | |
96 | ||
97 | /* option initialization */ | |
98 | bool hdrs = NO; | |
99 | bool qopt = NO; | |
100 | bool hush = NO; | |
101 | bool send = NO; | |
102 | bool locomode = NO; | |
103 | bool pause = NO; | |
104 | bool clean = NO; | |
105 | bool lastcmd = NO; | |
106 | ||
107 | main(argc, argv) | |
108 | int argc; char *argv[]; | |
109 | { | |
110 | bool newrc, already; | |
111 | int rcfirst = 0; /* first message to print (from .rc) */ | |
112 | int rcback = 0; /* amount to back off of rcfirst*/ | |
113 | int firstmsg, nextmsg, lastmsg = 0; | |
114 | int blast = 0; | |
115 | FILE *bounds, *msgsrc; | |
116 | ||
117 | #ifndef UNBUFFERED | |
118 | char obuf[BUFSIZ]; | |
119 | setbuf(stdout, obuf); | |
120 | #else | |
121 | setbuf(stdout, NULL); | |
122 | #endif | |
123 | ||
124 | gtty(fileno(stdout), &otty); | |
125 | time(&t); | |
126 | setuid(uid = getuid()); | |
127 | ruptible = (signal(SIGINT, SIG_IGN) == SIG_DFL); | |
128 | if (ruptible) | |
129 | signal(SIGINT, SIG_DFL); | |
130 | ||
131 | argc--, argv++; | |
132 | while (argc > 0) { | |
133 | if (isdigit(argv[0][0])) { /* starting message # */ | |
134 | rcfirst = atoi(argv[0]); | |
135 | } | |
136 | else if (isdigit(argv[0][1])) { /* backward offset */ | |
137 | rcback = atoi( &( argv[0][1] ) ); | |
138 | } | |
139 | else { | |
140 | ptr = *argv; | |
141 | while (*ptr) switch (*ptr++) { | |
142 | ||
143 | case '-': | |
144 | break; | |
145 | ||
146 | case 'c': | |
147 | if (uid != SUPERUSER && uid != DAEMON) { | |
148 | fprintf(stderr, "Sorry\n"); | |
149 | exit(1); | |
150 | } | |
151 | clean = YES; | |
152 | break; | |
153 | ||
154 | case 'f': /* silently */ | |
155 | hush = YES; | |
156 | break; | |
157 | ||
158 | case 'h': /* headers only */ | |
159 | hdrs = YES; | |
160 | break; | |
161 | ||
162 | case 'l': /* local msgs only */ | |
163 | locomode = YES; | |
164 | break; | |
165 | ||
166 | case 'o': /* option to save last message */ | |
167 | lastcmd = YES; | |
168 | break; | |
169 | ||
170 | case 'p': /* pipe thru 'more' during long msgs */ | |
171 | pause = YES; | |
172 | break; | |
173 | ||
174 | case 'q': /* query only */ | |
175 | qopt = YES; | |
176 | break; | |
177 | ||
178 | case 's': /* sending TO msgs */ | |
179 | send = YES; | |
180 | break; | |
181 | ||
182 | default: | |
183 | fprintf(stderr, | |
184 | "usage: msgs [fhlopq] [[-]number]\n"); | |
185 | exit(1); | |
186 | } | |
187 | } | |
188 | argc--, argv++; | |
189 | } | |
190 | ||
191 | /* | |
192 | * determine current message bounds | |
193 | */ | |
194 | sprintf(fname, "%s/%s", USRMSGS, BOUNDS); | |
195 | bounds = fopen(fname, "r"); | |
196 | ||
197 | if (bounds != NULL) { | |
198 | fscanf(bounds, "%d %d\n", &firstmsg, &lastmsg); | |
199 | fclose(bounds); | |
200 | blast = lastmsg; /* save upper bound */ | |
201 | } | |
202 | ||
203 | if (clean) | |
204 | keep = t - (rcback? rcback : NDAYS) DAYS; | |
205 | ||
206 | if (clean || bounds == NULL) { /* relocate message bounds */ | |
2e3d53b4 | 207 | struct direct *dp; |
46ebe0eb RH |
208 | struct stat stbuf; |
209 | bool seenany = NO; | |
2e3d53b4 | 210 | DIR *dirp; |
46ebe0eb | 211 | |
2e3d53b4 RH |
212 | dirp = opendir(USRMSGS); |
213 | if (dirp == NULL) { | |
46ebe0eb RH |
214 | perror(USRMSGS); |
215 | exit(errno); | |
216 | } | |
217 | ||
218 | firstmsg = 32767; | |
219 | lastmsg = 0; | |
220 | ||
2e3d53b4 RH |
221 | for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)){ |
222 | register char *cp = dp->d_name; | |
46ebe0eb RH |
223 | register int i = 0; |
224 | ||
2e3d53b4 RH |
225 | if (dp->d_ino == 0) |
226 | continue; | |
227 | if (dp->d_namlen == 0) | |
46ebe0eb RH |
228 | continue; |
229 | ||
230 | if (clean) | |
231 | sprintf(inbuf, "%s/%s", USRMSGS, cp); | |
232 | ||
233 | while (isdigit(*cp)) | |
234 | i = i * 10 + *cp++ - '0'; | |
235 | if (*cp) | |
236 | continue; /* not a message! */ | |
237 | ||
238 | if (clean) { | |
239 | if (stat(inbuf, &stbuf) != 0) | |
240 | continue; | |
241 | if (stbuf.st_mtime < keep | |
242 | && stbuf.st_mode&S_IWRITE) { | |
243 | unlink(inbuf); | |
244 | continue; | |
245 | } | |
246 | } | |
247 | ||
248 | if (i > lastmsg) | |
249 | lastmsg = i; | |
250 | if (i < firstmsg) | |
251 | firstmsg = i; | |
252 | seenany = YES; | |
253 | } | |
2e3d53b4 | 254 | closedir(dirp); |
46ebe0eb RH |
255 | |
256 | if (!seenany) { | |
257 | if (blast != 0) /* never lower the upper bound! */ | |
258 | lastmsg = blast; | |
259 | firstmsg = lastmsg + 1; | |
260 | } | |
261 | else if (blast > lastmsg) | |
262 | lastmsg = blast; | |
263 | ||
264 | if (!send) { | |
265 | bounds = fopen(fname, "w"); | |
266 | if (bounds == NULL) { | |
267 | perror(fname); | |
268 | exit(errno); | |
269 | } | |
270 | chmod(fname, CMODE); | |
271 | fprintf(bounds, "%d %d\n", firstmsg, lastmsg); | |
272 | fclose(bounds); | |
273 | } | |
274 | } | |
275 | ||
276 | if (send) { | |
277 | /* | |
278 | * Send mode - place msgs in USRMSGS | |
279 | */ | |
280 | bounds = fopen(fname, "w"); | |
281 | if (bounds == NULL) { | |
282 | perror(fname); | |
283 | exit(errno); | |
284 | } | |
285 | ||
286 | nextmsg = lastmsg + 1; | |
287 | sprintf(fname, "%s/%d", USRMSGS, nextmsg); | |
288 | newmsg = fopen(fname, "w"); | |
289 | if (newmsg == NULL) { | |
290 | perror(fname); | |
291 | exit(errno); | |
292 | } | |
293 | chmod(fname, 0644); | |
294 | ||
295 | fprintf(bounds, "%d %d\n", firstmsg, nextmsg); | |
296 | fclose(bounds); | |
297 | ||
298 | sending = YES; | |
299 | if (ruptible) | |
300 | signal(SIGINT, onintr); | |
301 | ||
302 | if (isatty(fileno(stdin))) { | |
303 | ptr = getpwuid(uid)->pw_name; | |
304 | printf("Message %d:\nFrom %s %sSubject: ", | |
305 | nextmsg, ptr, ctime(&t)); | |
306 | fflush(stdout); | |
307 | fgets(inbuf, sizeof inbuf, stdin); | |
308 | putchar('\n'); | |
309 | fflush(stdout); | |
310 | fprintf(newmsg, "From %s %sSubject: %s\n", | |
311 | ptr, ctime(&t), inbuf); | |
312 | blankline = seensubj = YES; | |
313 | } | |
314 | else | |
315 | blankline = seensubj = NO; | |
316 | for (;;) { | |
317 | fgets(inbuf, sizeof inbuf, stdin); | |
318 | if (feof(stdin) || ferror(stdin)) | |
319 | break; | |
320 | blankline = (blankline || (inbuf[0] == '\n')); | |
321 | seensubj = (seensubj || (!blankline && (strncmp(inbuf, "Subj", 4) == 0))); | |
322 | fputs(inbuf, newmsg); | |
323 | } | |
324 | #ifdef OBJECT | |
325 | if (!seensubj) { | |
326 | printf("NOTICE: Messages should have a Subject field!\n"); | |
327 | #ifdef REJECT | |
328 | unlink(fname); | |
329 | #endif | |
330 | exit(1); | |
331 | } | |
332 | #endif | |
333 | exit(ferror(stdin)); | |
334 | } | |
335 | if (clean) | |
336 | exit(0); | |
337 | ||
338 | /* | |
339 | * prepare to display messages | |
340 | */ | |
341 | totty = (isatty(fileno(stdout)) != 0); | |
342 | pause = pause && totty; | |
343 | ||
344 | sprintf(fname, "%s/%s", getenv("HOME"), MSGSRC); | |
345 | msgsrc = fopen(fname, "r"); | |
346 | if (msgsrc) { | |
347 | newrc = NO; | |
348 | fscanf(msgsrc, "%d\n", &nextmsg); | |
349 | fclose(msgsrc); | |
350 | if (!rcfirst) | |
351 | rcfirst = nextmsg - rcback; | |
352 | } | |
353 | else { | |
354 | newrc = YES; | |
355 | nextmsg = 0; | |
356 | } | |
357 | msgsrc = fopen(fname, "a"); | |
358 | if (msgsrc == NULL) { | |
359 | perror(fname); | |
360 | exit(errno); | |
361 | } | |
362 | if (rcfirst) | |
363 | firstmsg = rcfirst; | |
364 | if (newrc) { | |
365 | nextmsg = firstmsg; | |
366 | fseek(msgsrc, 0L, 0); | |
367 | fprintf(msgsrc, "%d\n", nextmsg); | |
368 | fflush(msgsrc); | |
369 | } | |
370 | ||
371 | #ifdef V7 | |
372 | if (totty) { | |
373 | if (tgetent(inbuf, getenv("TERM")) <= 0 | |
374 | || (Lpp = tgetnum("li")) <= 0) { | |
375 | Lpp = NLINES; | |
376 | } | |
377 | } | |
378 | #endif | |
379 | Lpp -= 6; /* for headers, etc. */ | |
380 | ||
381 | already = NO; | |
382 | prevmsg = firstmsg; | |
383 | printing = YES; | |
384 | if (ruptible) | |
385 | signal(SIGINT, onintr); | |
386 | ||
387 | /* | |
388 | * Main program loop | |
389 | */ | |
390 | for (msg = firstmsg; msg <= lastmsg; msg++) { | |
391 | ||
392 | sprintf(fname, "%s/%d", USRMSGS, msg); | |
393 | newmsg = fopen(fname, "r"); | |
394 | if (newmsg == NULL) | |
395 | continue; | |
396 | ||
397 | gfrsub(newmsg); /* get From and Subject fields */ | |
398 | if (locomode && !local) { | |
399 | fclose(newmsg); | |
400 | continue; | |
401 | } | |
402 | ||
403 | if (qopt) { /* This has to be located here */ | |
404 | printf("There are new messages.\n"); | |
405 | exit(0); | |
406 | } | |
407 | ||
408 | if (already && !hdrs) | |
409 | putchar('\n'); | |
410 | already = YES; | |
411 | ||
412 | /* | |
413 | * Print header | |
414 | */ | |
415 | nlines = 2; | |
416 | if (seenfrom) { | |
417 | printf("Message %d:\nFrom %s %s", msg, from, date); | |
418 | nlines++; | |
419 | } | |
420 | if (seensubj) { | |
421 | printf("Subject: %s", subj); | |
422 | nlines++; | |
423 | } | |
424 | else { | |
425 | if (seenfrom) { | |
426 | putchar('\n'); | |
427 | nlines++; | |
428 | } | |
429 | while (nlines < 6 | |
430 | && fgets(inbuf, sizeof inbuf, newmsg) | |
431 | && inbuf[0] != '\n') { | |
432 | fputs(inbuf, stdout); | |
433 | nlines++; | |
434 | } | |
435 | } | |
436 | ||
437 | lct = linecnt(newmsg); | |
438 | if (lct) | |
439 | printf("(%d%slines) ", lct, seensubj? " " : " more "); | |
440 | ||
441 | if (hdrs) { | |
442 | printf("\n-----\n"); | |
443 | fclose(newmsg); | |
444 | continue; | |
445 | } | |
446 | ||
447 | /* | |
448 | * Ask user for command | |
449 | */ | |
450 | if (totty) | |
451 | ask(lct? MORE : (msg==lastmsg? NOMORE : NEXT)); | |
452 | else | |
453 | inbuf[0] = 'y'; | |
454 | cmnd: | |
455 | in = inbuf; | |
456 | switch (*in) { | |
457 | case 'x': | |
458 | case 'X': | |
459 | exit(0); | |
460 | ||
461 | case 'q': | |
462 | case 'Q': | |
463 | quitit = YES; | |
464 | printf("--Postponed--\n"); | |
465 | exit(0); | |
466 | /* intentional fall-thru */ | |
467 | case 'n': | |
468 | case 'N': | |
469 | if (msg >= nextmsg) sep = "Flushed"; | |
470 | break; | |
471 | ||
472 | case 'p': | |
473 | case 'P': | |
474 | pause = (*in++ == 'p'); | |
475 | /* intentional fallthru */ | |
476 | case '\n': | |
477 | case 'y': | |
478 | default: | |
479 | if (*in == '-') { | |
480 | msg = prevmsg-1; | |
481 | sep = "replay"; | |
482 | break; | |
483 | } | |
484 | if (isdigit(*in)) { | |
485 | msg = next(in); | |
486 | sep = in; | |
487 | break; | |
488 | } | |
489 | ||
490 | prmesg(nlines + lct + (seensubj? 1 : 0)); | |
491 | prevmsg = msg; | |
492 | ||
493 | } | |
494 | ||
495 | printf("--%s--\n", sep); | |
496 | sep = "-"; | |
497 | if (msg >= nextmsg) { | |
498 | nextmsg = msg + 1; | |
499 | fseek(msgsrc, 0L, 0); | |
500 | fprintf(msgsrc, "%d\n", nextmsg); | |
501 | fflush(msgsrc); | |
502 | } | |
503 | if (newmsg) | |
504 | fclose(newmsg); | |
505 | if (quitit) | |
506 | break; | |
507 | } | |
508 | ||
509 | if (already && !quitit && lastcmd && totty) { | |
510 | /* | |
511 | * save or reply to last message? | |
512 | */ | |
513 | msg = prevmsg; | |
514 | ask(NOMORE); | |
515 | if (inbuf[0] == '-' || isdigit(inbuf[0])) | |
516 | goto cmnd; | |
517 | } | |
518 | if (!(already || hush || qopt)) | |
519 | printf("No new messages.\n"); | |
520 | exit(0); | |
521 | } | |
522 | ||
523 | prmesg(length) | |
524 | int length; | |
525 | { | |
526 | FILE *outf, *inf; | |
527 | int c; | |
528 | ||
529 | if (pause && length > Lpp) { | |
530 | sprintf(cmdbuf, PAGE, Lpp); | |
531 | outf = popen(cmdbuf, "w"); | |
532 | if (!outf) | |
533 | outf = stdout; | |
534 | else | |
535 | setbuf(outf, NULL); | |
536 | } | |
537 | else | |
538 | outf = stdout; | |
539 | ||
540 | if (seensubj) | |
541 | putc('\n', outf); | |
542 | ||
543 | while (fgets(inbuf, sizeof inbuf, newmsg)) | |
544 | fputs(inbuf, outf); | |
545 | ||
546 | if (outf != stdout) { | |
547 | pclose(outf); | |
548 | } | |
549 | else { | |
550 | fflush(stdout); | |
551 | } | |
552 | ||
553 | /* trick to force wait on output */ | |
554 | stty(fileno(stdout), &otty); | |
555 | } | |
556 | ||
557 | onintr() | |
558 | { | |
559 | signal(SIGINT, onintr); | |
560 | if (mailing) | |
561 | unlink(fname); | |
562 | if (sending) { | |
563 | unlink(fname); | |
564 | puts("--Killed--"); | |
565 | exit(1); | |
566 | } | |
567 | if (printing) { | |
568 | putchar('\n'); | |
569 | if (hdrs) | |
570 | exit(0); | |
571 | sep = "Interrupt"; | |
572 | if (newmsg) | |
573 | fseek(newmsg, 0L, 2); | |
574 | intrpflg = YES; | |
575 | } | |
576 | } | |
577 | ||
578 | linecnt(f) | |
579 | FILE *f; | |
580 | { | |
581 | off_t oldpos = ftell(f); | |
582 | int l = 0; | |
583 | char lbuf[BUFSIZ]; | |
584 | ||
585 | while (fgets(lbuf, sizeof lbuf, f)) | |
586 | l++; | |
587 | clearerr(f); | |
588 | fseek(f, oldpos, 0); | |
589 | return (l); | |
590 | } | |
591 | ||
592 | next(buf) | |
593 | char *buf; | |
594 | { | |
595 | int i; | |
596 | sscanf(buf, "%d", &i); | |
597 | sprintf(buf, "Goto %d", i); | |
598 | return(--i); | |
599 | } | |
600 | ||
601 | ask(prompt) | |
602 | char *prompt; | |
603 | { | |
604 | char inch; | |
605 | int n, cmsg; | |
606 | off_t oldpos; | |
607 | FILE *cpfrom, *cpto; | |
608 | ||
609 | printf("%s ", prompt); | |
610 | fflush(stdout); | |
611 | intrpflg = NO; | |
612 | gets(inbuf); | |
613 | if (intrpflg) | |
614 | inbuf[0] = 'x'; | |
615 | ||
616 | /* | |
617 | * Handle 'mail' and 'save' here. | |
618 | */ | |
619 | if ((inch = inbuf[0]) == 's' || inch == 'm') { | |
620 | if (inbuf[1] == '-') | |
621 | cmsg = prevmsg; | |
622 | else if (isdigit(inbuf[1])) | |
623 | cmsg = atoi(&inbuf[1]); | |
624 | else | |
625 | cmsg = msg; | |
626 | sprintf(fname, "%s/%d", USRMSGS, cmsg); | |
627 | ||
628 | oldpos = ftell(newmsg); | |
629 | ||
630 | cpfrom = fopen(fname, "r"); | |
631 | if (!cpfrom) { | |
632 | printf("Message %d not found\n", cmsg); | |
633 | ask (prompt); | |
634 | return; | |
635 | } | |
636 | ||
637 | if (inch == 's') { | |
638 | in = nxtfld(inbuf); | |
639 | if (*in) { | |
640 | for (n=0; in[n] > ' '; n++) { /* sizeof fname? */ | |
641 | fname[n] = in[n]; | |
642 | } | |
643 | fname[n] = NULL; | |
644 | } | |
645 | else | |
646 | strcpy(fname, "Messages"); | |
647 | } | |
648 | else { | |
649 | strcpy(fname, TEMP); | |
650 | mktemp(fname); | |
651 | sprintf(cmdbuf, MAIL, fname); | |
652 | mailing = YES; | |
653 | } | |
654 | cpto = fopen(fname, "a"); | |
655 | if (!cpto) { | |
656 | perror(fname); | |
657 | mailing = NO; | |
658 | fseek(newmsg, oldpos, 0); | |
659 | ask(prompt); | |
660 | return; | |
661 | } | |
662 | ||
663 | while (n = fread(inbuf, 1, sizeof inbuf, cpfrom)) | |
664 | fwrite(inbuf, 1, n, cpto); | |
665 | ||
666 | fclose(cpfrom); | |
667 | fclose(cpto); | |
668 | fseek(newmsg, oldpos, 0); /* reposition current message */ | |
669 | if (inch == 's') | |
670 | printf("Message %d saved in \"%s\"\n", cmsg, fname); | |
671 | else { | |
672 | system(cmdbuf); | |
673 | unlink(fname); | |
674 | mailing = NO; | |
675 | } | |
676 | ask(prompt); | |
677 | } | |
678 | } | |
679 | ||
680 | gfrsub(infile) | |
681 | FILE *infile; | |
682 | { | |
683 | off_t frompos; | |
684 | ||
685 | seensubj = seenfrom = NO; | |
686 | local = YES; | |
687 | subj[0] = from[0] = date[0] = NULL; | |
688 | ||
689 | /* | |
690 | * Is this a normal message? | |
691 | */ | |
692 | if (fgets(inbuf, sizeof inbuf, infile)) { | |
693 | if (strncmp(inbuf, "From", 4)==0) { | |
694 | /* | |
695 | * expected form starts with From | |
696 | */ | |
697 | seenfrom = YES; | |
698 | frompos = ftell(infile); | |
699 | ptr = from; | |
700 | in = nxtfld(inbuf); | |
701 | if (*in) while (*in && *in > ' ') { | |
41c894fb | 702 | if (*in == ':' || *in == '@' || *in == '!') |
46ebe0eb RH |
703 | local = NO; |
704 | *ptr++ = *in++; | |
705 | /* what about sizeof from ? */ | |
706 | } | |
707 | *ptr = NULL; | |
708 | if (*(in = nxtfld(in))) | |
709 | strncpy(date, in, sizeof date); | |
710 | else { | |
711 | date[0] = '\n'; | |
712 | date[1] = NULL; | |
713 | } | |
714 | } | |
715 | else { | |
716 | /* | |
717 | * not the expected form | |
718 | */ | |
719 | fseek(infile, 0L, 0); | |
720 | return; | |
721 | } | |
722 | } | |
723 | else | |
724 | /* | |
725 | * empty file ? | |
726 | */ | |
727 | return; | |
728 | ||
729 | /* | |
730 | * look for Subject line until EOF or a blank line | |
731 | */ | |
732 | while (fgets(inbuf, sizeof inbuf, infile) | |
733 | && !(blankline = (inbuf[0] == '\n'))) { | |
734 | /* | |
735 | * extract Subject line | |
736 | */ | |
737 | if (!seensubj && strncmp(inbuf, "Subj", 4)==0) { | |
738 | seensubj = YES; | |
739 | frompos = ftell(infile); | |
740 | strncpy(subj, nxtfld(inbuf), sizeof subj); | |
741 | } | |
742 | } | |
743 | if (!blankline) | |
744 | /* | |
745 | * ran into EOF | |
746 | */ | |
747 | fseek(infile, frompos, 0); | |
748 | ||
749 | if (!seensubj) | |
750 | /* | |
751 | * for possible use with Mail | |
752 | */ | |
753 | strncpy(subj, "(No Subject)\n", sizeof subj); | |
754 | } | |
755 | ||
756 | char * | |
757 | nxtfld(s) | |
758 | char *s; | |
759 | { | |
760 | if (*s) while (*s && *s > ' ') s++; /* skip over this field */ | |
761 | if (*s) while (*s && *s <= ' ') s++; /* find start of next field */ | |
762 | return (s); | |
763 | } |