Commit | Line | Data |
---|---|---|
5ff67f98 DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
46ebe0eb | 7 | #ifndef lint |
5ff67f98 DF |
8 | char copyright[] = |
9 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
10 | All rights reserved.\n"; | |
11 | #endif not lint | |
12 | ||
13 | #ifndef lint | |
46c68d92 | 14 | static char sccsid[] = "@(#)msgs.c 5.3 (Berkeley) %G%"; |
5ff67f98 DF |
15 | #endif not lint |
16 | ||
46ebe0eb RH |
17 | /* |
18 | * msgs - a user bulletin board program | |
19 | * | |
20 | * usage: | |
21 | * msgs [fhlopq] [[-]number] to read messages | |
22 | * msgs -s to place messages | |
23 | * msgs -c [-days] to clean up the bulletin board | |
24 | * | |
25 | * prompt commands are: | |
26 | * y print message | |
27 | * n flush message, go to next message | |
28 | * q flush message, quit | |
29 | * p print message, turn on 'pipe thru more' mode | |
30 | * P print message, turn off 'pipe thru more' mode | |
31 | * - reprint last message | |
32 | * s[-][<num>] [<filename>] save message | |
33 | * m[-][<num>] mail with message in temp mbox | |
34 | * x exit without flushing this message | |
695b2e09 | 35 | * <num> print message number <num> |
46ebe0eb RH |
36 | */ |
37 | ||
38 | #define V7 /* will look for TERM in the environment */ | |
39 | #define OBJECT /* will object to messages without Subjects */ | |
40 | /* #define REJECT /* will reject messages without Subjects | |
41 | (OBJECT must be defined also) */ | |
42 | /* #define UNBUFFERED /* use unbuffered output */ | |
43 | ||
44 | #include <stdio.h> | |
2e3d53b4 | 45 | #include <sys/param.h> |
46ebe0eb | 46 | #include <signal.h> |
0588cc8c | 47 | #include <sys/dir.h> |
46ebe0eb RH |
48 | #include <sys/stat.h> |
49 | #include <ctype.h> | |
50 | #include <pwd.h> | |
51 | #include <sgtty.h> | |
e7127e6a | 52 | #include <setjmp.h> |
46ebe0eb RH |
53 | #include "msgs.h" |
54 | ||
55 | #define CMODE 0666 /* bounds file creation mode */ | |
56 | #define NO 0 | |
57 | #define YES 1 | |
58 | #define SUPERUSER 0 /* superuser uid */ | |
59 | #define DAEMON 1 /* daemon uid */ | |
60 | #define NLINES 24 /* default number of lines/crt screen */ | |
61 | #define NDAYS 21 /* default keep time for messages */ | |
62 | #define DAYS *24*60*60 /* seconds/day */ | |
63 | #define TEMP "/tmp/msgXXXXXX" | |
64 | #define MSGSRC ".msgsrc" /* user's rc file */ | |
65 | #define BOUNDS "bounds" /* message bounds file */ | |
66 | #define NEXT "Next message? [yq]" | |
67 | #define MORE "More? [ynq]" | |
68 | #define NOMORE "(No more) [q] ?" | |
69 | ||
70 | typedef char bool; | |
71 | ||
72 | FILE *newmsg; | |
73 | char *sep = "-"; | |
74 | char inbuf[BUFSIZ]; | |
75 | char fname[128]; | |
76 | char cmdbuf[128]; | |
77 | char subj[128]; | |
78 | char from[128]; | |
79 | char date[128]; | |
80 | char *ptr; | |
81 | char *in; | |
82 | bool local; | |
83 | bool ruptible; | |
84 | bool totty; | |
85 | bool seenfrom; | |
86 | bool seensubj; | |
87 | bool blankline; | |
88 | bool printing = NO; | |
89 | bool mailing = NO; | |
90 | bool quitit = NO; | |
91 | bool sending = NO; | |
92 | bool intrpflg = NO; | |
4bdc6489 | 93 | bool tstpflag = NO; |
46ebe0eb RH |
94 | int uid; |
95 | int msg; | |
96 | int prevmsg; | |
97 | int lct; | |
98 | int nlines; | |
686125cc | 99 | int Lpp = 0; |
46ebe0eb RH |
100 | time_t t; |
101 | time_t keep; | |
102 | struct sgttyb otty; | |
103 | ||
104 | char *ctime(); | |
105 | char *nxtfld(); | |
106 | int onintr(); | |
4bdc6489 | 107 | int onsusp(); |
46ebe0eb RH |
108 | off_t ftell(); |
109 | FILE *popen(); | |
110 | struct passwd *getpwuid(); | |
111 | ||
112 | extern int errno; | |
113 | ||
114 | /* option initialization */ | |
115 | bool hdrs = NO; | |
116 | bool qopt = NO; | |
117 | bool hush = NO; | |
118 | bool send = NO; | |
119 | bool locomode = NO; | |
120 | bool pause = NO; | |
121 | bool clean = NO; | |
122 | bool lastcmd = NO; | |
e7127e6a | 123 | jmp_buf tstpbuf; |
46ebe0eb RH |
124 | |
125 | main(argc, argv) | |
126 | int argc; char *argv[]; | |
127 | { | |
128 | bool newrc, already; | |
129 | int rcfirst = 0; /* first message to print (from .rc) */ | |
ef7d2615 | 130 | int rcback = 0; /* amount to back off of rcfirst */ |
46ebe0eb RH |
131 | int firstmsg, nextmsg, lastmsg = 0; |
132 | int blast = 0; | |
133 | FILE *bounds, *msgsrc; | |
134 | ||
723391ff | 135 | #ifdef UNBUFFERED |
46ebe0eb RH |
136 | setbuf(stdout, NULL); |
137 | #endif | |
138 | ||
139 | gtty(fileno(stdout), &otty); | |
140 | time(&t); | |
141 | setuid(uid = getuid()); | |
142 | ruptible = (signal(SIGINT, SIG_IGN) == SIG_DFL); | |
143 | if (ruptible) | |
144 | signal(SIGINT, SIG_DFL); | |
145 | ||
146 | argc--, argv++; | |
147 | while (argc > 0) { | |
148 | if (isdigit(argv[0][0])) { /* starting message # */ | |
149 | rcfirst = atoi(argv[0]); | |
150 | } | |
151 | else if (isdigit(argv[0][1])) { /* backward offset */ | |
152 | rcback = atoi( &( argv[0][1] ) ); | |
153 | } | |
154 | else { | |
155 | ptr = *argv; | |
156 | while (*ptr) switch (*ptr++) { | |
157 | ||
158 | case '-': | |
159 | break; | |
160 | ||
161 | case 'c': | |
162 | if (uid != SUPERUSER && uid != DAEMON) { | |
163 | fprintf(stderr, "Sorry\n"); | |
164 | exit(1); | |
165 | } | |
166 | clean = YES; | |
167 | break; | |
168 | ||
169 | case 'f': /* silently */ | |
170 | hush = YES; | |
171 | break; | |
172 | ||
173 | case 'h': /* headers only */ | |
174 | hdrs = YES; | |
175 | break; | |
176 | ||
177 | case 'l': /* local msgs only */ | |
178 | locomode = YES; | |
179 | break; | |
180 | ||
181 | case 'o': /* option to save last message */ | |
182 | lastcmd = YES; | |
183 | break; | |
184 | ||
185 | case 'p': /* pipe thru 'more' during long msgs */ | |
186 | pause = YES; | |
187 | break; | |
188 | ||
189 | case 'q': /* query only */ | |
190 | qopt = YES; | |
191 | break; | |
192 | ||
193 | case 's': /* sending TO msgs */ | |
194 | send = YES; | |
195 | break; | |
196 | ||
197 | default: | |
198 | fprintf(stderr, | |
199 | "usage: msgs [fhlopq] [[-]number]\n"); | |
200 | exit(1); | |
201 | } | |
202 | } | |
203 | argc--, argv++; | |
204 | } | |
205 | ||
206 | /* | |
207 | * determine current message bounds | |
208 | */ | |
209 | sprintf(fname, "%s/%s", USRMSGS, BOUNDS); | |
210 | bounds = fopen(fname, "r"); | |
211 | ||
212 | if (bounds != NULL) { | |
213 | fscanf(bounds, "%d %d\n", &firstmsg, &lastmsg); | |
214 | fclose(bounds); | |
215 | blast = lastmsg; /* save upper bound */ | |
216 | } | |
217 | ||
218 | if (clean) | |
219 | keep = t - (rcback? rcback : NDAYS) DAYS; | |
220 | ||
221 | if (clean || bounds == NULL) { /* relocate message bounds */ | |
2e3d53b4 | 222 | struct direct *dp; |
46ebe0eb RH |
223 | struct stat stbuf; |
224 | bool seenany = NO; | |
2e3d53b4 | 225 | DIR *dirp; |
46ebe0eb | 226 | |
2e3d53b4 RH |
227 | dirp = opendir(USRMSGS); |
228 | if (dirp == NULL) { | |
46ebe0eb RH |
229 | perror(USRMSGS); |
230 | exit(errno); | |
231 | } | |
232 | ||
233 | firstmsg = 32767; | |
234 | lastmsg = 0; | |
235 | ||
2e3d53b4 RH |
236 | for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)){ |
237 | register char *cp = dp->d_name; | |
46ebe0eb RH |
238 | register int i = 0; |
239 | ||
2e3d53b4 RH |
240 | if (dp->d_ino == 0) |
241 | continue; | |
242 | if (dp->d_namlen == 0) | |
46ebe0eb RH |
243 | continue; |
244 | ||
245 | if (clean) | |
246 | sprintf(inbuf, "%s/%s", USRMSGS, cp); | |
247 | ||
248 | while (isdigit(*cp)) | |
249 | i = i * 10 + *cp++ - '0'; | |
250 | if (*cp) | |
251 | continue; /* not a message! */ | |
252 | ||
253 | if (clean) { | |
254 | if (stat(inbuf, &stbuf) != 0) | |
255 | continue; | |
256 | if (stbuf.st_mtime < keep | |
257 | && stbuf.st_mode&S_IWRITE) { | |
258 | unlink(inbuf); | |
259 | continue; | |
260 | } | |
261 | } | |
262 | ||
263 | if (i > lastmsg) | |
264 | lastmsg = i; | |
265 | if (i < firstmsg) | |
266 | firstmsg = i; | |
267 | seenany = YES; | |
268 | } | |
2e3d53b4 | 269 | closedir(dirp); |
46ebe0eb RH |
270 | |
271 | if (!seenany) { | |
272 | if (blast != 0) /* never lower the upper bound! */ | |
273 | lastmsg = blast; | |
274 | firstmsg = lastmsg + 1; | |
275 | } | |
276 | else if (blast > lastmsg) | |
277 | lastmsg = blast; | |
278 | ||
279 | if (!send) { | |
280 | bounds = fopen(fname, "w"); | |
281 | if (bounds == NULL) { | |
282 | perror(fname); | |
283 | exit(errno); | |
284 | } | |
285 | chmod(fname, CMODE); | |
286 | fprintf(bounds, "%d %d\n", firstmsg, lastmsg); | |
287 | fclose(bounds); | |
288 | } | |
289 | } | |
290 | ||
291 | if (send) { | |
292 | /* | |
293 | * Send mode - place msgs in USRMSGS | |
294 | */ | |
295 | bounds = fopen(fname, "w"); | |
296 | if (bounds == NULL) { | |
297 | perror(fname); | |
298 | exit(errno); | |
299 | } | |
300 | ||
301 | nextmsg = lastmsg + 1; | |
302 | sprintf(fname, "%s/%d", USRMSGS, nextmsg); | |
303 | newmsg = fopen(fname, "w"); | |
304 | if (newmsg == NULL) { | |
305 | perror(fname); | |
306 | exit(errno); | |
307 | } | |
308 | chmod(fname, 0644); | |
309 | ||
310 | fprintf(bounds, "%d %d\n", firstmsg, nextmsg); | |
311 | fclose(bounds); | |
312 | ||
313 | sending = YES; | |
314 | if (ruptible) | |
315 | signal(SIGINT, onintr); | |
316 | ||
317 | if (isatty(fileno(stdin))) { | |
318 | ptr = getpwuid(uid)->pw_name; | |
319 | printf("Message %d:\nFrom %s %sSubject: ", | |
320 | nextmsg, ptr, ctime(&t)); | |
321 | fflush(stdout); | |
322 | fgets(inbuf, sizeof inbuf, stdin); | |
323 | putchar('\n'); | |
324 | fflush(stdout); | |
325 | fprintf(newmsg, "From %s %sSubject: %s\n", | |
326 | ptr, ctime(&t), inbuf); | |
327 | blankline = seensubj = YES; | |
328 | } | |
329 | else | |
330 | blankline = seensubj = NO; | |
331 | for (;;) { | |
332 | fgets(inbuf, sizeof inbuf, stdin); | |
333 | if (feof(stdin) || ferror(stdin)) | |
334 | break; | |
335 | blankline = (blankline || (inbuf[0] == '\n')); | |
336 | seensubj = (seensubj || (!blankline && (strncmp(inbuf, "Subj", 4) == 0))); | |
337 | fputs(inbuf, newmsg); | |
338 | } | |
339 | #ifdef OBJECT | |
340 | if (!seensubj) { | |
341 | printf("NOTICE: Messages should have a Subject field!\n"); | |
342 | #ifdef REJECT | |
343 | unlink(fname); | |
344 | #endif | |
345 | exit(1); | |
346 | } | |
347 | #endif | |
348 | exit(ferror(stdin)); | |
349 | } | |
350 | if (clean) | |
351 | exit(0); | |
352 | ||
353 | /* | |
354 | * prepare to display messages | |
355 | */ | |
356 | totty = (isatty(fileno(stdout)) != 0); | |
357 | pause = pause && totty; | |
358 | ||
359 | sprintf(fname, "%s/%s", getenv("HOME"), MSGSRC); | |
360 | msgsrc = fopen(fname, "r"); | |
361 | if (msgsrc) { | |
362 | newrc = NO; | |
363 | fscanf(msgsrc, "%d\n", &nextmsg); | |
364 | fclose(msgsrc); | |
695b2e09 RC |
365 | if (nextmsg > lastmsg+1) { |
366 | printf("Warning: bounds have been reset (%d, %d)\n", | |
367 | firstmsg, lastmsg); | |
46c68d92 | 368 | truncate(fname, 0); |
695b2e09 RC |
369 | newrc = YES; |
370 | } | |
371 | else if (!rcfirst) | |
46ebe0eb RH |
372 | rcfirst = nextmsg - rcback; |
373 | } | |
695b2e09 | 374 | else |
46ebe0eb | 375 | newrc = YES; |
46ebe0eb RH |
376 | msgsrc = fopen(fname, "a"); |
377 | if (msgsrc == NULL) { | |
378 | perror(fname); | |
379 | exit(errno); | |
380 | } | |
695b2e09 RC |
381 | if (rcfirst) { |
382 | if (rcfirst > lastmsg+1) { | |
383 | printf("Warning: the last message is number %d.\n", | |
384 | lastmsg); | |
385 | rcfirst = nextmsg; | |
386 | } | |
387 | if (rcfirst > firstmsg) | |
388 | firstmsg = rcfirst; /* don't set below first msg */ | |
389 | } | |
46ebe0eb RH |
390 | if (newrc) { |
391 | nextmsg = firstmsg; | |
392 | fseek(msgsrc, 0L, 0); | |
393 | fprintf(msgsrc, "%d\n", nextmsg); | |
394 | fflush(msgsrc); | |
395 | } | |
396 | ||
397 | #ifdef V7 | |
398 | if (totty) { | |
686125cc JB |
399 | struct winsize win; |
400 | if (ioctl(fileno(stdout), TIOCGWINSZ, &win) != -1) | |
401 | Lpp = win.ws_row; | |
402 | if (Lpp <= 0) { | |
403 | if (tgetent(inbuf, getenv("TERM")) <= 0 | |
404 | || (Lpp = tgetnum("li")) <= 0) { | |
405 | Lpp = NLINES; | |
406 | } | |
46ebe0eb RH |
407 | } |
408 | } | |
409 | #endif | |
410 | Lpp -= 6; /* for headers, etc. */ | |
411 | ||
412 | already = NO; | |
413 | prevmsg = firstmsg; | |
414 | printing = YES; | |
415 | if (ruptible) | |
416 | signal(SIGINT, onintr); | |
417 | ||
418 | /* | |
419 | * Main program loop | |
420 | */ | |
421 | for (msg = firstmsg; msg <= lastmsg; msg++) { | |
422 | ||
423 | sprintf(fname, "%s/%d", USRMSGS, msg); | |
424 | newmsg = fopen(fname, "r"); | |
425 | if (newmsg == NULL) | |
426 | continue; | |
427 | ||
428 | gfrsub(newmsg); /* get From and Subject fields */ | |
429 | if (locomode && !local) { | |
430 | fclose(newmsg); | |
431 | continue; | |
432 | } | |
433 | ||
434 | if (qopt) { /* This has to be located here */ | |
435 | printf("There are new messages.\n"); | |
436 | exit(0); | |
437 | } | |
438 | ||
439 | if (already && !hdrs) | |
440 | putchar('\n'); | |
441 | already = YES; | |
442 | ||
443 | /* | |
444 | * Print header | |
445 | */ | |
4bdc6489 | 446 | again: |
4bdc6489 CL |
447 | if (totty) |
448 | signal(SIGTSTP, onsusp); | |
e7127e6a | 449 | (void) setjmp(tstpbuf); |
46ebe0eb RH |
450 | nlines = 2; |
451 | if (seenfrom) { | |
452 | printf("Message %d:\nFrom %s %s", msg, from, date); | |
453 | nlines++; | |
454 | } | |
455 | if (seensubj) { | |
456 | printf("Subject: %s", subj); | |
457 | nlines++; | |
458 | } | |
459 | else { | |
460 | if (seenfrom) { | |
461 | putchar('\n'); | |
462 | nlines++; | |
463 | } | |
464 | while (nlines < 6 | |
465 | && fgets(inbuf, sizeof inbuf, newmsg) | |
466 | && inbuf[0] != '\n') { | |
467 | fputs(inbuf, stdout); | |
468 | nlines++; | |
469 | } | |
470 | } | |
471 | ||
472 | lct = linecnt(newmsg); | |
473 | if (lct) | |
474 | printf("(%d%slines) ", lct, seensubj? " " : " more "); | |
475 | ||
476 | if (hdrs) { | |
477 | printf("\n-----\n"); | |
478 | fclose(newmsg); | |
479 | continue; | |
480 | } | |
481 | ||
482 | /* | |
483 | * Ask user for command | |
484 | */ | |
485 | if (totty) | |
486 | ask(lct? MORE : (msg==lastmsg? NOMORE : NEXT)); | |
487 | else | |
488 | inbuf[0] = 'y'; | |
4bdc6489 CL |
489 | if (totty) |
490 | signal(SIGTSTP, SIG_DFL); | |
46ebe0eb RH |
491 | cmnd: |
492 | in = inbuf; | |
493 | switch (*in) { | |
494 | case 'x': | |
495 | case 'X': | |
496 | exit(0); | |
497 | ||
498 | case 'q': | |
499 | case 'Q': | |
500 | quitit = YES; | |
501 | printf("--Postponed--\n"); | |
502 | exit(0); | |
503 | /* intentional fall-thru */ | |
504 | case 'n': | |
505 | case 'N': | |
506 | if (msg >= nextmsg) sep = "Flushed"; | |
af075600 | 507 | prevmsg = msg; |
46ebe0eb RH |
508 | break; |
509 | ||
510 | case 'p': | |
511 | case 'P': | |
512 | pause = (*in++ == 'p'); | |
513 | /* intentional fallthru */ | |
514 | case '\n': | |
515 | case 'y': | |
516 | default: | |
517 | if (*in == '-') { | |
518 | msg = prevmsg-1; | |
519 | sep = "replay"; | |
520 | break; | |
521 | } | |
522 | if (isdigit(*in)) { | |
523 | msg = next(in); | |
524 | sep = in; | |
525 | break; | |
526 | } | |
527 | ||
528 | prmesg(nlines + lct + (seensubj? 1 : 0)); | |
529 | prevmsg = msg; | |
530 | ||
531 | } | |
532 | ||
533 | printf("--%s--\n", sep); | |
534 | sep = "-"; | |
535 | if (msg >= nextmsg) { | |
536 | nextmsg = msg + 1; | |
537 | fseek(msgsrc, 0L, 0); | |
538 | fprintf(msgsrc, "%d\n", nextmsg); | |
539 | fflush(msgsrc); | |
540 | } | |
541 | if (newmsg) | |
542 | fclose(newmsg); | |
543 | if (quitit) | |
544 | break; | |
545 | } | |
546 | ||
186baa0c CL |
547 | /* |
548 | * Make sure .rc file gets updated | |
549 | */ | |
550 | if (--msg >= nextmsg) { | |
551 | nextmsg = msg + 1; | |
552 | fseek(msgsrc, 0L, 0); | |
553 | fprintf(msgsrc, "%d\n", nextmsg); | |
554 | fflush(msgsrc); | |
555 | } | |
46ebe0eb RH |
556 | if (already && !quitit && lastcmd && totty) { |
557 | /* | |
558 | * save or reply to last message? | |
559 | */ | |
560 | msg = prevmsg; | |
561 | ask(NOMORE); | |
562 | if (inbuf[0] == '-' || isdigit(inbuf[0])) | |
563 | goto cmnd; | |
564 | } | |
565 | if (!(already || hush || qopt)) | |
566 | printf("No new messages.\n"); | |
567 | exit(0); | |
568 | } | |
569 | ||
570 | prmesg(length) | |
571 | int length; | |
572 | { | |
573 | FILE *outf, *inf; | |
574 | int c; | |
575 | ||
576 | if (pause && length > Lpp) { | |
00f74c2b RC |
577 | signal(SIGPIPE, SIG_IGN); |
578 | signal(SIGQUIT, SIG_IGN); | |
46ebe0eb RH |
579 | sprintf(cmdbuf, PAGE, Lpp); |
580 | outf = popen(cmdbuf, "w"); | |
581 | if (!outf) | |
582 | outf = stdout; | |
583 | else | |
584 | setbuf(outf, NULL); | |
585 | } | |
586 | else | |
587 | outf = stdout; | |
588 | ||
589 | if (seensubj) | |
590 | putc('\n', outf); | |
591 | ||
00f74c2b | 592 | while (fgets(inbuf, sizeof inbuf, newmsg)) { |
46ebe0eb | 593 | fputs(inbuf, outf); |
5276b9b8 RC |
594 | if (ferror(outf)) { |
595 | clearerr(outf); | |
00f74c2b | 596 | break; |
5276b9b8 | 597 | } |
00f74c2b | 598 | } |
46ebe0eb RH |
599 | |
600 | if (outf != stdout) { | |
601 | pclose(outf); | |
00f74c2b RC |
602 | signal(SIGPIPE, SIG_DFL); |
603 | signal(SIGQUIT, SIG_DFL); | |
46ebe0eb RH |
604 | } |
605 | else { | |
606 | fflush(stdout); | |
607 | } | |
608 | ||
609 | /* trick to force wait on output */ | |
610 | stty(fileno(stdout), &otty); | |
611 | } | |
612 | ||
613 | onintr() | |
614 | { | |
615 | signal(SIGINT, onintr); | |
616 | if (mailing) | |
617 | unlink(fname); | |
618 | if (sending) { | |
619 | unlink(fname); | |
620 | puts("--Killed--"); | |
621 | exit(1); | |
622 | } | |
623 | if (printing) { | |
624 | putchar('\n'); | |
625 | if (hdrs) | |
626 | exit(0); | |
627 | sep = "Interrupt"; | |
628 | if (newmsg) | |
629 | fseek(newmsg, 0L, 2); | |
630 | intrpflg = YES; | |
631 | } | |
632 | } | |
633 | ||
4bdc6489 CL |
634 | /* |
635 | * We have just gotten a susp. Suspend and prepare to resume. | |
636 | */ | |
637 | onsusp() | |
638 | { | |
e7127e6a | 639 | |
4bdc6489 | 640 | signal(SIGTSTP, SIG_DFL); |
21cbf623 | 641 | sigsetmask(0); |
4bdc6489 | 642 | kill(0, SIGTSTP); |
4bdc6489 | 643 | signal(SIGTSTP, onsusp); |
24a1a865 CL |
644 | if (!mailing) |
645 | longjmp(tstpbuf); | |
4bdc6489 CL |
646 | } |
647 | ||
46ebe0eb RH |
648 | linecnt(f) |
649 | FILE *f; | |
650 | { | |
651 | off_t oldpos = ftell(f); | |
652 | int l = 0; | |
653 | char lbuf[BUFSIZ]; | |
654 | ||
655 | while (fgets(lbuf, sizeof lbuf, f)) | |
656 | l++; | |
657 | clearerr(f); | |
658 | fseek(f, oldpos, 0); | |
659 | return (l); | |
660 | } | |
661 | ||
662 | next(buf) | |
663 | char *buf; | |
664 | { | |
665 | int i; | |
666 | sscanf(buf, "%d", &i); | |
667 | sprintf(buf, "Goto %d", i); | |
668 | return(--i); | |
669 | } | |
670 | ||
671 | ask(prompt) | |
672 | char *prompt; | |
673 | { | |
674 | char inch; | |
675 | int n, cmsg; | |
676 | off_t oldpos; | |
677 | FILE *cpfrom, *cpto; | |
678 | ||
679 | printf("%s ", prompt); | |
680 | fflush(stdout); | |
681 | intrpflg = NO; | |
682 | gets(inbuf); | |
683 | if (intrpflg) | |
684 | inbuf[0] = 'x'; | |
685 | ||
686 | /* | |
687 | * Handle 'mail' and 'save' here. | |
688 | */ | |
689 | if ((inch = inbuf[0]) == 's' || inch == 'm') { | |
690 | if (inbuf[1] == '-') | |
691 | cmsg = prevmsg; | |
692 | else if (isdigit(inbuf[1])) | |
693 | cmsg = atoi(&inbuf[1]); | |
694 | else | |
695 | cmsg = msg; | |
696 | sprintf(fname, "%s/%d", USRMSGS, cmsg); | |
697 | ||
698 | oldpos = ftell(newmsg); | |
699 | ||
700 | cpfrom = fopen(fname, "r"); | |
701 | if (!cpfrom) { | |
702 | printf("Message %d not found\n", cmsg); | |
703 | ask (prompt); | |
704 | return; | |
705 | } | |
706 | ||
707 | if (inch == 's') { | |
708 | in = nxtfld(inbuf); | |
709 | if (*in) { | |
710 | for (n=0; in[n] > ' '; n++) { /* sizeof fname? */ | |
711 | fname[n] = in[n]; | |
712 | } | |
713 | fname[n] = NULL; | |
714 | } | |
715 | else | |
716 | strcpy(fname, "Messages"); | |
717 | } | |
718 | else { | |
719 | strcpy(fname, TEMP); | |
720 | mktemp(fname); | |
721 | sprintf(cmdbuf, MAIL, fname); | |
722 | mailing = YES; | |
723 | } | |
724 | cpto = fopen(fname, "a"); | |
725 | if (!cpto) { | |
726 | perror(fname); | |
727 | mailing = NO; | |
728 | fseek(newmsg, oldpos, 0); | |
729 | ask(prompt); | |
730 | return; | |
731 | } | |
732 | ||
733 | while (n = fread(inbuf, 1, sizeof inbuf, cpfrom)) | |
734 | fwrite(inbuf, 1, n, cpto); | |
735 | ||
736 | fclose(cpfrom); | |
737 | fclose(cpto); | |
738 | fseek(newmsg, oldpos, 0); /* reposition current message */ | |
739 | if (inch == 's') | |
740 | printf("Message %d saved in \"%s\"\n", cmsg, fname); | |
741 | else { | |
742 | system(cmdbuf); | |
743 | unlink(fname); | |
744 | mailing = NO; | |
745 | } | |
746 | ask(prompt); | |
747 | } | |
748 | } | |
749 | ||
750 | gfrsub(infile) | |
751 | FILE *infile; | |
752 | { | |
753 | off_t frompos; | |
754 | ||
755 | seensubj = seenfrom = NO; | |
756 | local = YES; | |
757 | subj[0] = from[0] = date[0] = NULL; | |
758 | ||
759 | /* | |
760 | * Is this a normal message? | |
761 | */ | |
762 | if (fgets(inbuf, sizeof inbuf, infile)) { | |
763 | if (strncmp(inbuf, "From", 4)==0) { | |
764 | /* | |
765 | * expected form starts with From | |
766 | */ | |
767 | seenfrom = YES; | |
768 | frompos = ftell(infile); | |
769 | ptr = from; | |
770 | in = nxtfld(inbuf); | |
771 | if (*in) while (*in && *in > ' ') { | |
41c894fb | 772 | if (*in == ':' || *in == '@' || *in == '!') |
46ebe0eb RH |
773 | local = NO; |
774 | *ptr++ = *in++; | |
775 | /* what about sizeof from ? */ | |
776 | } | |
777 | *ptr = NULL; | |
778 | if (*(in = nxtfld(in))) | |
779 | strncpy(date, in, sizeof date); | |
780 | else { | |
781 | date[0] = '\n'; | |
782 | date[1] = NULL; | |
783 | } | |
784 | } | |
785 | else { | |
786 | /* | |
787 | * not the expected form | |
788 | */ | |
789 | fseek(infile, 0L, 0); | |
790 | return; | |
791 | } | |
792 | } | |
793 | else | |
794 | /* | |
795 | * empty file ? | |
796 | */ | |
797 | return; | |
798 | ||
799 | /* | |
800 | * look for Subject line until EOF or a blank line | |
801 | */ | |
802 | while (fgets(inbuf, sizeof inbuf, infile) | |
803 | && !(blankline = (inbuf[0] == '\n'))) { | |
804 | /* | |
805 | * extract Subject line | |
806 | */ | |
807 | if (!seensubj && strncmp(inbuf, "Subj", 4)==0) { | |
808 | seensubj = YES; | |
809 | frompos = ftell(infile); | |
810 | strncpy(subj, nxtfld(inbuf), sizeof subj); | |
811 | } | |
812 | } | |
813 | if (!blankline) | |
814 | /* | |
815 | * ran into EOF | |
816 | */ | |
817 | fseek(infile, frompos, 0); | |
818 | ||
819 | if (!seensubj) | |
820 | /* | |
821 | * for possible use with Mail | |
822 | */ | |
823 | strncpy(subj, "(No Subject)\n", sizeof subj); | |
824 | } | |
825 | ||
826 | char * | |
827 | nxtfld(s) | |
828 | char *s; | |
829 | { | |
830 | if (*s) while (*s && *s > ' ') s++; /* skip over this field */ | |
831 | if (*s) while (*s && *s <= ' ') s++; /* find start of next field */ | |
832 | return (s); | |
833 | } |