Commit | Line | Data |
---|---|---|
46ebe0eb | 1 | #ifndef lint |
723391ff | 2 | static char sccsid[] = "@(#)msgs.c 4.16 (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 | |
695b2e09 | 22 | * <num> print message number <num> |
46ebe0eb RH |
23 | */ |
24 | ||
25 | #define V7 /* will look for TERM in the environment */ | |
26 | #define OBJECT /* will object to messages without Subjects */ | |
27 | /* #define REJECT /* will reject messages without Subjects | |
28 | (OBJECT must be defined also) */ | |
29 | /* #define UNBUFFERED /* use unbuffered output */ | |
30 | ||
31 | #include <stdio.h> | |
2e3d53b4 | 32 | #include <sys/param.h> |
46ebe0eb | 33 | #include <signal.h> |
0588cc8c | 34 | #include <sys/dir.h> |
46ebe0eb RH |
35 | #include <sys/stat.h> |
36 | #include <ctype.h> | |
37 | #include <pwd.h> | |
38 | #include <sgtty.h> | |
e7127e6a | 39 | #include <setjmp.h> |
46ebe0eb RH |
40 | #include "msgs.h" |
41 | ||
42 | #define CMODE 0666 /* bounds file creation mode */ | |
43 | #define NO 0 | |
44 | #define YES 1 | |
45 | #define SUPERUSER 0 /* superuser uid */ | |
46 | #define DAEMON 1 /* daemon uid */ | |
47 | #define NLINES 24 /* default number of lines/crt screen */ | |
48 | #define NDAYS 21 /* default keep time for messages */ | |
49 | #define DAYS *24*60*60 /* seconds/day */ | |
50 | #define TEMP "/tmp/msgXXXXXX" | |
51 | #define MSGSRC ".msgsrc" /* user's rc file */ | |
52 | #define BOUNDS "bounds" /* message bounds file */ | |
53 | #define NEXT "Next message? [yq]" | |
54 | #define MORE "More? [ynq]" | |
55 | #define NOMORE "(No more) [q] ?" | |
56 | ||
57 | typedef char bool; | |
58 | ||
59 | FILE *newmsg; | |
60 | char *sep = "-"; | |
61 | char inbuf[BUFSIZ]; | |
62 | char fname[128]; | |
63 | char cmdbuf[128]; | |
64 | char subj[128]; | |
65 | char from[128]; | |
66 | char date[128]; | |
67 | char *ptr; | |
68 | char *in; | |
69 | bool local; | |
70 | bool ruptible; | |
71 | bool totty; | |
72 | bool seenfrom; | |
73 | bool seensubj; | |
74 | bool blankline; | |
75 | bool printing = NO; | |
76 | bool mailing = NO; | |
77 | bool quitit = NO; | |
78 | bool sending = NO; | |
79 | bool intrpflg = NO; | |
4bdc6489 | 80 | bool tstpflag = NO; |
46ebe0eb RH |
81 | int uid; |
82 | int msg; | |
83 | int prevmsg; | |
84 | int lct; | |
85 | int nlines; | |
86 | int Lpp = NLINES; | |
87 | time_t t; | |
88 | time_t keep; | |
89 | struct sgttyb otty; | |
90 | ||
91 | char *ctime(); | |
92 | char *nxtfld(); | |
93 | int onintr(); | |
4bdc6489 | 94 | int onsusp(); |
46ebe0eb RH |
95 | off_t ftell(); |
96 | FILE *popen(); | |
97 | struct passwd *getpwuid(); | |
98 | ||
99 | extern int errno; | |
100 | ||
101 | /* option initialization */ | |
102 | bool hdrs = NO; | |
103 | bool qopt = NO; | |
104 | bool hush = NO; | |
105 | bool send = NO; | |
106 | bool locomode = NO; | |
107 | bool pause = NO; | |
108 | bool clean = NO; | |
109 | bool lastcmd = NO; | |
e7127e6a | 110 | jmp_buf tstpbuf; |
46ebe0eb RH |
111 | |
112 | main(argc, argv) | |
113 | int argc; char *argv[]; | |
114 | { | |
115 | bool newrc, already; | |
116 | int rcfirst = 0; /* first message to print (from .rc) */ | |
ef7d2615 | 117 | int rcback = 0; /* amount to back off of rcfirst */ |
46ebe0eb RH |
118 | int firstmsg, nextmsg, lastmsg = 0; |
119 | int blast = 0; | |
120 | FILE *bounds, *msgsrc; | |
121 | ||
723391ff | 122 | #ifdef UNBUFFERED |
46ebe0eb RH |
123 | setbuf(stdout, NULL); |
124 | #endif | |
125 | ||
126 | gtty(fileno(stdout), &otty); | |
127 | time(&t); | |
128 | setuid(uid = getuid()); | |
129 | ruptible = (signal(SIGINT, SIG_IGN) == SIG_DFL); | |
130 | if (ruptible) | |
131 | signal(SIGINT, SIG_DFL); | |
132 | ||
133 | argc--, argv++; | |
134 | while (argc > 0) { | |
135 | if (isdigit(argv[0][0])) { /* starting message # */ | |
136 | rcfirst = atoi(argv[0]); | |
137 | } | |
138 | else if (isdigit(argv[0][1])) { /* backward offset */ | |
139 | rcback = atoi( &( argv[0][1] ) ); | |
140 | } | |
141 | else { | |
142 | ptr = *argv; | |
143 | while (*ptr) switch (*ptr++) { | |
144 | ||
145 | case '-': | |
146 | break; | |
147 | ||
148 | case 'c': | |
149 | if (uid != SUPERUSER && uid != DAEMON) { | |
150 | fprintf(stderr, "Sorry\n"); | |
151 | exit(1); | |
152 | } | |
153 | clean = YES; | |
154 | break; | |
155 | ||
156 | case 'f': /* silently */ | |
157 | hush = YES; | |
158 | break; | |
159 | ||
160 | case 'h': /* headers only */ | |
161 | hdrs = YES; | |
162 | break; | |
163 | ||
164 | case 'l': /* local msgs only */ | |
165 | locomode = YES; | |
166 | break; | |
167 | ||
168 | case 'o': /* option to save last message */ | |
169 | lastcmd = YES; | |
170 | break; | |
171 | ||
172 | case 'p': /* pipe thru 'more' during long msgs */ | |
173 | pause = YES; | |
174 | break; | |
175 | ||
176 | case 'q': /* query only */ | |
177 | qopt = YES; | |
178 | break; | |
179 | ||
180 | case 's': /* sending TO msgs */ | |
181 | send = YES; | |
182 | break; | |
183 | ||
184 | default: | |
185 | fprintf(stderr, | |
186 | "usage: msgs [fhlopq] [[-]number]\n"); | |
187 | exit(1); | |
188 | } | |
189 | } | |
190 | argc--, argv++; | |
191 | } | |
192 | ||
193 | /* | |
194 | * determine current message bounds | |
195 | */ | |
196 | sprintf(fname, "%s/%s", USRMSGS, BOUNDS); | |
197 | bounds = fopen(fname, "r"); | |
198 | ||
199 | if (bounds != NULL) { | |
200 | fscanf(bounds, "%d %d\n", &firstmsg, &lastmsg); | |
201 | fclose(bounds); | |
202 | blast = lastmsg; /* save upper bound */ | |
203 | } | |
204 | ||
205 | if (clean) | |
206 | keep = t - (rcback? rcback : NDAYS) DAYS; | |
207 | ||
208 | if (clean || bounds == NULL) { /* relocate message bounds */ | |
2e3d53b4 | 209 | struct direct *dp; |
46ebe0eb RH |
210 | struct stat stbuf; |
211 | bool seenany = NO; | |
2e3d53b4 | 212 | DIR *dirp; |
46ebe0eb | 213 | |
2e3d53b4 RH |
214 | dirp = opendir(USRMSGS); |
215 | if (dirp == NULL) { | |
46ebe0eb RH |
216 | perror(USRMSGS); |
217 | exit(errno); | |
218 | } | |
219 | ||
220 | firstmsg = 32767; | |
221 | lastmsg = 0; | |
222 | ||
2e3d53b4 RH |
223 | for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)){ |
224 | register char *cp = dp->d_name; | |
46ebe0eb RH |
225 | register int i = 0; |
226 | ||
2e3d53b4 RH |
227 | if (dp->d_ino == 0) |
228 | continue; | |
229 | if (dp->d_namlen == 0) | |
46ebe0eb RH |
230 | continue; |
231 | ||
232 | if (clean) | |
233 | sprintf(inbuf, "%s/%s", USRMSGS, cp); | |
234 | ||
235 | while (isdigit(*cp)) | |
236 | i = i * 10 + *cp++ - '0'; | |
237 | if (*cp) | |
238 | continue; /* not a message! */ | |
239 | ||
240 | if (clean) { | |
241 | if (stat(inbuf, &stbuf) != 0) | |
242 | continue; | |
243 | if (stbuf.st_mtime < keep | |
244 | && stbuf.st_mode&S_IWRITE) { | |
245 | unlink(inbuf); | |
246 | continue; | |
247 | } | |
248 | } | |
249 | ||
250 | if (i > lastmsg) | |
251 | lastmsg = i; | |
252 | if (i < firstmsg) | |
253 | firstmsg = i; | |
254 | seenany = YES; | |
255 | } | |
2e3d53b4 | 256 | closedir(dirp); |
46ebe0eb RH |
257 | |
258 | if (!seenany) { | |
259 | if (blast != 0) /* never lower the upper bound! */ | |
260 | lastmsg = blast; | |
261 | firstmsg = lastmsg + 1; | |
262 | } | |
263 | else if (blast > lastmsg) | |
264 | lastmsg = blast; | |
265 | ||
266 | if (!send) { | |
267 | bounds = fopen(fname, "w"); | |
268 | if (bounds == NULL) { | |
269 | perror(fname); | |
270 | exit(errno); | |
271 | } | |
272 | chmod(fname, CMODE); | |
273 | fprintf(bounds, "%d %d\n", firstmsg, lastmsg); | |
274 | fclose(bounds); | |
275 | } | |
276 | } | |
277 | ||
278 | if (send) { | |
279 | /* | |
280 | * Send mode - place msgs in USRMSGS | |
281 | */ | |
282 | bounds = fopen(fname, "w"); | |
283 | if (bounds == NULL) { | |
284 | perror(fname); | |
285 | exit(errno); | |
286 | } | |
287 | ||
288 | nextmsg = lastmsg + 1; | |
289 | sprintf(fname, "%s/%d", USRMSGS, nextmsg); | |
290 | newmsg = fopen(fname, "w"); | |
291 | if (newmsg == NULL) { | |
292 | perror(fname); | |
293 | exit(errno); | |
294 | } | |
295 | chmod(fname, 0644); | |
296 | ||
297 | fprintf(bounds, "%d %d\n", firstmsg, nextmsg); | |
298 | fclose(bounds); | |
299 | ||
300 | sending = YES; | |
301 | if (ruptible) | |
302 | signal(SIGINT, onintr); | |
303 | ||
304 | if (isatty(fileno(stdin))) { | |
305 | ptr = getpwuid(uid)->pw_name; | |
306 | printf("Message %d:\nFrom %s %sSubject: ", | |
307 | nextmsg, ptr, ctime(&t)); | |
308 | fflush(stdout); | |
309 | fgets(inbuf, sizeof inbuf, stdin); | |
310 | putchar('\n'); | |
311 | fflush(stdout); | |
312 | fprintf(newmsg, "From %s %sSubject: %s\n", | |
313 | ptr, ctime(&t), inbuf); | |
314 | blankline = seensubj = YES; | |
315 | } | |
316 | else | |
317 | blankline = seensubj = NO; | |
318 | for (;;) { | |
319 | fgets(inbuf, sizeof inbuf, stdin); | |
320 | if (feof(stdin) || ferror(stdin)) | |
321 | break; | |
322 | blankline = (blankline || (inbuf[0] == '\n')); | |
323 | seensubj = (seensubj || (!blankline && (strncmp(inbuf, "Subj", 4) == 0))); | |
324 | fputs(inbuf, newmsg); | |
325 | } | |
326 | #ifdef OBJECT | |
327 | if (!seensubj) { | |
328 | printf("NOTICE: Messages should have a Subject field!\n"); | |
329 | #ifdef REJECT | |
330 | unlink(fname); | |
331 | #endif | |
332 | exit(1); | |
333 | } | |
334 | #endif | |
335 | exit(ferror(stdin)); | |
336 | } | |
337 | if (clean) | |
338 | exit(0); | |
339 | ||
340 | /* | |
341 | * prepare to display messages | |
342 | */ | |
343 | totty = (isatty(fileno(stdout)) != 0); | |
344 | pause = pause && totty; | |
345 | ||
346 | sprintf(fname, "%s/%s", getenv("HOME"), MSGSRC); | |
347 | msgsrc = fopen(fname, "r"); | |
348 | if (msgsrc) { | |
349 | newrc = NO; | |
350 | fscanf(msgsrc, "%d\n", &nextmsg); | |
351 | fclose(msgsrc); | |
695b2e09 RC |
352 | if (nextmsg > lastmsg+1) { |
353 | printf("Warning: bounds have been reset (%d, %d)\n", | |
354 | firstmsg, lastmsg); | |
355 | ftruncate(fileno(msgsrc), 0); | |
356 | newrc = YES; | |
357 | } | |
358 | else if (!rcfirst) | |
46ebe0eb RH |
359 | rcfirst = nextmsg - rcback; |
360 | } | |
695b2e09 | 361 | else |
46ebe0eb | 362 | newrc = YES; |
46ebe0eb RH |
363 | msgsrc = fopen(fname, "a"); |
364 | if (msgsrc == NULL) { | |
365 | perror(fname); | |
366 | exit(errno); | |
367 | } | |
695b2e09 RC |
368 | if (rcfirst) { |
369 | if (rcfirst > lastmsg+1) { | |
370 | printf("Warning: the last message is number %d.\n", | |
371 | lastmsg); | |
372 | rcfirst = nextmsg; | |
373 | } | |
374 | if (rcfirst > firstmsg) | |
375 | firstmsg = rcfirst; /* don't set below first msg */ | |
376 | } | |
46ebe0eb RH |
377 | if (newrc) { |
378 | nextmsg = firstmsg; | |
379 | fseek(msgsrc, 0L, 0); | |
380 | fprintf(msgsrc, "%d\n", nextmsg); | |
381 | fflush(msgsrc); | |
382 | } | |
383 | ||
384 | #ifdef V7 | |
385 | if (totty) { | |
386 | if (tgetent(inbuf, getenv("TERM")) <= 0 | |
387 | || (Lpp = tgetnum("li")) <= 0) { | |
388 | Lpp = NLINES; | |
389 | } | |
390 | } | |
391 | #endif | |
392 | Lpp -= 6; /* for headers, etc. */ | |
393 | ||
394 | already = NO; | |
395 | prevmsg = firstmsg; | |
396 | printing = YES; | |
397 | if (ruptible) | |
398 | signal(SIGINT, onintr); | |
399 | ||
400 | /* | |
401 | * Main program loop | |
402 | */ | |
403 | for (msg = firstmsg; msg <= lastmsg; msg++) { | |
404 | ||
405 | sprintf(fname, "%s/%d", USRMSGS, msg); | |
406 | newmsg = fopen(fname, "r"); | |
407 | if (newmsg == NULL) | |
408 | continue; | |
409 | ||
410 | gfrsub(newmsg); /* get From and Subject fields */ | |
411 | if (locomode && !local) { | |
412 | fclose(newmsg); | |
413 | continue; | |
414 | } | |
415 | ||
416 | if (qopt) { /* This has to be located here */ | |
417 | printf("There are new messages.\n"); | |
418 | exit(0); | |
419 | } | |
420 | ||
421 | if (already && !hdrs) | |
422 | putchar('\n'); | |
423 | already = YES; | |
424 | ||
425 | /* | |
426 | * Print header | |
427 | */ | |
4bdc6489 | 428 | again: |
4bdc6489 CL |
429 | if (totty) |
430 | signal(SIGTSTP, onsusp); | |
e7127e6a | 431 | (void) setjmp(tstpbuf); |
46ebe0eb RH |
432 | nlines = 2; |
433 | if (seenfrom) { | |
434 | printf("Message %d:\nFrom %s %s", msg, from, date); | |
435 | nlines++; | |
436 | } | |
437 | if (seensubj) { | |
438 | printf("Subject: %s", subj); | |
439 | nlines++; | |
440 | } | |
441 | else { | |
442 | if (seenfrom) { | |
443 | putchar('\n'); | |
444 | nlines++; | |
445 | } | |
446 | while (nlines < 6 | |
447 | && fgets(inbuf, sizeof inbuf, newmsg) | |
448 | && inbuf[0] != '\n') { | |
449 | fputs(inbuf, stdout); | |
450 | nlines++; | |
451 | } | |
452 | } | |
453 | ||
454 | lct = linecnt(newmsg); | |
455 | if (lct) | |
456 | printf("(%d%slines) ", lct, seensubj? " " : " more "); | |
457 | ||
458 | if (hdrs) { | |
459 | printf("\n-----\n"); | |
460 | fclose(newmsg); | |
461 | continue; | |
462 | } | |
463 | ||
464 | /* | |
465 | * Ask user for command | |
466 | */ | |
467 | if (totty) | |
468 | ask(lct? MORE : (msg==lastmsg? NOMORE : NEXT)); | |
469 | else | |
470 | inbuf[0] = 'y'; | |
4bdc6489 CL |
471 | if (totty) |
472 | signal(SIGTSTP, SIG_DFL); | |
46ebe0eb RH |
473 | cmnd: |
474 | in = inbuf; | |
475 | switch (*in) { | |
476 | case 'x': | |
477 | case 'X': | |
478 | exit(0); | |
479 | ||
480 | case 'q': | |
481 | case 'Q': | |
482 | quitit = YES; | |
483 | printf("--Postponed--\n"); | |
484 | exit(0); | |
485 | /* intentional fall-thru */ | |
486 | case 'n': | |
487 | case 'N': | |
488 | if (msg >= nextmsg) sep = "Flushed"; | |
af075600 | 489 | prevmsg = msg; |
46ebe0eb RH |
490 | break; |
491 | ||
492 | case 'p': | |
493 | case 'P': | |
494 | pause = (*in++ == 'p'); | |
495 | /* intentional fallthru */ | |
496 | case '\n': | |
497 | case 'y': | |
498 | default: | |
499 | if (*in == '-') { | |
500 | msg = prevmsg-1; | |
501 | sep = "replay"; | |
502 | break; | |
503 | } | |
504 | if (isdigit(*in)) { | |
505 | msg = next(in); | |
506 | sep = in; | |
507 | break; | |
508 | } | |
509 | ||
510 | prmesg(nlines + lct + (seensubj? 1 : 0)); | |
511 | prevmsg = msg; | |
512 | ||
513 | } | |
514 | ||
515 | printf("--%s--\n", sep); | |
516 | sep = "-"; | |
517 | if (msg >= nextmsg) { | |
518 | nextmsg = msg + 1; | |
519 | fseek(msgsrc, 0L, 0); | |
520 | fprintf(msgsrc, "%d\n", nextmsg); | |
521 | fflush(msgsrc); | |
522 | } | |
523 | if (newmsg) | |
524 | fclose(newmsg); | |
525 | if (quitit) | |
526 | break; | |
527 | } | |
528 | ||
186baa0c CL |
529 | /* |
530 | * Make sure .rc file gets updated | |
531 | */ | |
532 | if (--msg >= nextmsg) { | |
533 | nextmsg = msg + 1; | |
534 | fseek(msgsrc, 0L, 0); | |
535 | fprintf(msgsrc, "%d\n", nextmsg); | |
536 | fflush(msgsrc); | |
537 | } | |
46ebe0eb RH |
538 | if (already && !quitit && lastcmd && totty) { |
539 | /* | |
540 | * save or reply to last message? | |
541 | */ | |
542 | msg = prevmsg; | |
543 | ask(NOMORE); | |
544 | if (inbuf[0] == '-' || isdigit(inbuf[0])) | |
545 | goto cmnd; | |
546 | } | |
547 | if (!(already || hush || qopt)) | |
548 | printf("No new messages.\n"); | |
549 | exit(0); | |
550 | } | |
551 | ||
552 | prmesg(length) | |
553 | int length; | |
554 | { | |
555 | FILE *outf, *inf; | |
556 | int c; | |
557 | ||
558 | if (pause && length > Lpp) { | |
00f74c2b RC |
559 | signal(SIGPIPE, SIG_IGN); |
560 | signal(SIGQUIT, SIG_IGN); | |
46ebe0eb RH |
561 | sprintf(cmdbuf, PAGE, Lpp); |
562 | outf = popen(cmdbuf, "w"); | |
563 | if (!outf) | |
564 | outf = stdout; | |
565 | else | |
566 | setbuf(outf, NULL); | |
567 | } | |
568 | else | |
569 | outf = stdout; | |
570 | ||
571 | if (seensubj) | |
572 | putc('\n', outf); | |
573 | ||
00f74c2b | 574 | while (fgets(inbuf, sizeof inbuf, newmsg)) { |
46ebe0eb | 575 | fputs(inbuf, outf); |
5276b9b8 RC |
576 | if (ferror(outf)) { |
577 | clearerr(outf); | |
00f74c2b | 578 | break; |
5276b9b8 | 579 | } |
00f74c2b | 580 | } |
46ebe0eb RH |
581 | |
582 | if (outf != stdout) { | |
583 | pclose(outf); | |
00f74c2b RC |
584 | signal(SIGPIPE, SIG_DFL); |
585 | signal(SIGQUIT, SIG_DFL); | |
46ebe0eb RH |
586 | } |
587 | else { | |
588 | fflush(stdout); | |
589 | } | |
590 | ||
591 | /* trick to force wait on output */ | |
592 | stty(fileno(stdout), &otty); | |
593 | } | |
594 | ||
595 | onintr() | |
596 | { | |
597 | signal(SIGINT, onintr); | |
598 | if (mailing) | |
599 | unlink(fname); | |
600 | if (sending) { | |
601 | unlink(fname); | |
602 | puts("--Killed--"); | |
603 | exit(1); | |
604 | } | |
605 | if (printing) { | |
606 | putchar('\n'); | |
607 | if (hdrs) | |
608 | exit(0); | |
609 | sep = "Interrupt"; | |
610 | if (newmsg) | |
611 | fseek(newmsg, 0L, 2); | |
612 | intrpflg = YES; | |
613 | } | |
614 | } | |
615 | ||
4bdc6489 CL |
616 | /* |
617 | * We have just gotten a susp. Suspend and prepare to resume. | |
618 | */ | |
619 | onsusp() | |
620 | { | |
e7127e6a | 621 | |
4bdc6489 | 622 | signal(SIGTSTP, SIG_DFL); |
21cbf623 | 623 | sigsetmask(0); |
4bdc6489 | 624 | kill(0, SIGTSTP); |
4bdc6489 | 625 | signal(SIGTSTP, onsusp); |
24a1a865 CL |
626 | if (!mailing) |
627 | longjmp(tstpbuf); | |
4bdc6489 CL |
628 | } |
629 | ||
46ebe0eb RH |
630 | linecnt(f) |
631 | FILE *f; | |
632 | { | |
633 | off_t oldpos = ftell(f); | |
634 | int l = 0; | |
635 | char lbuf[BUFSIZ]; | |
636 | ||
637 | while (fgets(lbuf, sizeof lbuf, f)) | |
638 | l++; | |
639 | clearerr(f); | |
640 | fseek(f, oldpos, 0); | |
641 | return (l); | |
642 | } | |
643 | ||
644 | next(buf) | |
645 | char *buf; | |
646 | { | |
647 | int i; | |
648 | sscanf(buf, "%d", &i); | |
649 | sprintf(buf, "Goto %d", i); | |
650 | return(--i); | |
651 | } | |
652 | ||
653 | ask(prompt) | |
654 | char *prompt; | |
655 | { | |
656 | char inch; | |
657 | int n, cmsg; | |
658 | off_t oldpos; | |
659 | FILE *cpfrom, *cpto; | |
660 | ||
661 | printf("%s ", prompt); | |
662 | fflush(stdout); | |
663 | intrpflg = NO; | |
664 | gets(inbuf); | |
665 | if (intrpflg) | |
666 | inbuf[0] = 'x'; | |
667 | ||
668 | /* | |
669 | * Handle 'mail' and 'save' here. | |
670 | */ | |
671 | if ((inch = inbuf[0]) == 's' || inch == 'm') { | |
672 | if (inbuf[1] == '-') | |
673 | cmsg = prevmsg; | |
674 | else if (isdigit(inbuf[1])) | |
675 | cmsg = atoi(&inbuf[1]); | |
676 | else | |
677 | cmsg = msg; | |
678 | sprintf(fname, "%s/%d", USRMSGS, cmsg); | |
679 | ||
680 | oldpos = ftell(newmsg); | |
681 | ||
682 | cpfrom = fopen(fname, "r"); | |
683 | if (!cpfrom) { | |
684 | printf("Message %d not found\n", cmsg); | |
685 | ask (prompt); | |
686 | return; | |
687 | } | |
688 | ||
689 | if (inch == 's') { | |
690 | in = nxtfld(inbuf); | |
691 | if (*in) { | |
692 | for (n=0; in[n] > ' '; n++) { /* sizeof fname? */ | |
693 | fname[n] = in[n]; | |
694 | } | |
695 | fname[n] = NULL; | |
696 | } | |
697 | else | |
698 | strcpy(fname, "Messages"); | |
699 | } | |
700 | else { | |
701 | strcpy(fname, TEMP); | |
702 | mktemp(fname); | |
703 | sprintf(cmdbuf, MAIL, fname); | |
704 | mailing = YES; | |
705 | } | |
706 | cpto = fopen(fname, "a"); | |
707 | if (!cpto) { | |
708 | perror(fname); | |
709 | mailing = NO; | |
710 | fseek(newmsg, oldpos, 0); | |
711 | ask(prompt); | |
712 | return; | |
713 | } | |
714 | ||
715 | while (n = fread(inbuf, 1, sizeof inbuf, cpfrom)) | |
716 | fwrite(inbuf, 1, n, cpto); | |
717 | ||
718 | fclose(cpfrom); | |
719 | fclose(cpto); | |
720 | fseek(newmsg, oldpos, 0); /* reposition current message */ | |
721 | if (inch == 's') | |
722 | printf("Message %d saved in \"%s\"\n", cmsg, fname); | |
723 | else { | |
724 | system(cmdbuf); | |
725 | unlink(fname); | |
726 | mailing = NO; | |
727 | } | |
728 | ask(prompt); | |
729 | } | |
730 | } | |
731 | ||
732 | gfrsub(infile) | |
733 | FILE *infile; | |
734 | { | |
735 | off_t frompos; | |
736 | ||
737 | seensubj = seenfrom = NO; | |
738 | local = YES; | |
739 | subj[0] = from[0] = date[0] = NULL; | |
740 | ||
741 | /* | |
742 | * Is this a normal message? | |
743 | */ | |
744 | if (fgets(inbuf, sizeof inbuf, infile)) { | |
745 | if (strncmp(inbuf, "From", 4)==0) { | |
746 | /* | |
747 | * expected form starts with From | |
748 | */ | |
749 | seenfrom = YES; | |
750 | frompos = ftell(infile); | |
751 | ptr = from; | |
752 | in = nxtfld(inbuf); | |
753 | if (*in) while (*in && *in > ' ') { | |
41c894fb | 754 | if (*in == ':' || *in == '@' || *in == '!') |
46ebe0eb RH |
755 | local = NO; |
756 | *ptr++ = *in++; | |
757 | /* what about sizeof from ? */ | |
758 | } | |
759 | *ptr = NULL; | |
760 | if (*(in = nxtfld(in))) | |
761 | strncpy(date, in, sizeof date); | |
762 | else { | |
763 | date[0] = '\n'; | |
764 | date[1] = NULL; | |
765 | } | |
766 | } | |
767 | else { | |
768 | /* | |
769 | * not the expected form | |
770 | */ | |
771 | fseek(infile, 0L, 0); | |
772 | return; | |
773 | } | |
774 | } | |
775 | else | |
776 | /* | |
777 | * empty file ? | |
778 | */ | |
779 | return; | |
780 | ||
781 | /* | |
782 | * look for Subject line until EOF or a blank line | |
783 | */ | |
784 | while (fgets(inbuf, sizeof inbuf, infile) | |
785 | && !(blankline = (inbuf[0] == '\n'))) { | |
786 | /* | |
787 | * extract Subject line | |
788 | */ | |
789 | if (!seensubj && strncmp(inbuf, "Subj", 4)==0) { | |
790 | seensubj = YES; | |
791 | frompos = ftell(infile); | |
792 | strncpy(subj, nxtfld(inbuf), sizeof subj); | |
793 | } | |
794 | } | |
795 | if (!blankline) | |
796 | /* | |
797 | * ran into EOF | |
798 | */ | |
799 | fseek(infile, frompos, 0); | |
800 | ||
801 | if (!seensubj) | |
802 | /* | |
803 | * for possible use with Mail | |
804 | */ | |
805 | strncpy(subj, "(No Subject)\n", sizeof subj); | |
806 | } | |
807 | ||
808 | char * | |
809 | nxtfld(s) | |
810 | char *s; | |
811 | { | |
812 | if (*s) while (*s && *s > ' ') s++; /* skip over this field */ | |
813 | if (*s) while (*s && *s <= ' ') s++; /* find start of next field */ | |
814 | return (s); | |
815 | } |