Commit | Line | Data |
---|---|---|
205a2d85 | 1 | #ifndef lint |
454459c0 | 2 | static char sccsid[] = "@(#)mail.local.c 4.25 (Berkeley) %G%"; |
205a2d85 SL |
3 | #endif |
4 | ||
4e161d3b RC |
5 | #include <sys/types.h> |
6 | #include <sys/stat.h> | |
7 | #include <sys/file.h> | |
8 | ||
1c12a606 BJ |
9 | #include <ctype.h> |
10 | #include <stdio.h> | |
11 | #include <pwd.h> | |
12 | #include <utmp.h> | |
13 | #include <signal.h> | |
1c12a606 | 14 | #include <setjmp.h> |
1c12a606 BJ |
15 | #include <sysexits.h> |
16 | ||
ac57be53 | 17 | #define SENDMAIL "/usr/lib/sendmail" |
1c12a606 | 18 | |
4e161d3b RC |
19 | /* copylet flags */ |
20 | #define REMOTE 1 /* remote mail, add rmtmsg */ | |
21 | #define ORDINARY 2 | |
22 | #define ZAP 3 /* zap header and trailing empty line */ | |
23 | #define FORWARD 4 | |
1c12a606 | 24 | |
4e161d3b RC |
25 | #define LSIZE 256 |
26 | #define MAXLET 300 /* maximum number of letters */ | |
27 | #define MAILMODE 0600 /* mode of created mail */ | |
1c12a606 BJ |
28 | |
29 | char line[LSIZE]; | |
30 | char resp[LSIZE]; | |
31 | struct let { | |
32 | long adr; | |
33 | char change; | |
34 | } let[MAXLET]; | |
35 | int nlet = 0; | |
36 | char lfil[50]; | |
37 | long iop, time(); | |
38 | char *getenv(); | |
39 | char *index(); | |
40 | char lettmp[] = "/tmp/maXXXXX"; | |
41 | char maildir[] = "/usr/spool/mail/"; | |
42 | char mailfile[] = "/usr/spool/mail/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; | |
43 | char dead[] = "dead.letter"; | |
1c12a606 BJ |
44 | char forwmsg[] = " forwarded\n"; |
45 | FILE *tmpf; | |
46 | FILE *malf; | |
47 | char *my_name; | |
48 | char *getlogin(); | |
1c12a606 BJ |
49 | int error; |
50 | int changed; | |
51 | int forward; | |
52 | char from[] = "From "; | |
53 | long ftell(); | |
4e161d3b | 54 | int delex(); |
1c12a606 BJ |
55 | char *ctime(); |
56 | int flgf; | |
57 | int flgp; | |
58 | int delflg = 1; | |
59 | int hseqno; | |
60 | jmp_buf sjbuf; | |
61 | int rmail; | |
62 | ||
63 | main(argc, argv) | |
64 | char **argv; | |
65 | { | |
66 | register i; | |
454459c0 | 67 | struct passwd *pwent; |
1c12a606 | 68 | |
1c12a606 | 69 | my_name = getlogin(); |
4e161d3b | 70 | if (my_name == NULL || *my_name == '\0') { |
1c12a606 BJ |
71 | pwent = getpwuid(getuid()); |
72 | if (pwent==NULL) | |
73 | my_name = "???"; | |
74 | else | |
75 | my_name = pwent->pw_name; | |
76 | } | |
454459c0 MAN |
77 | else { |
78 | pwent = getpwnam(my_name); | |
79 | if ( getuid() != pwent->pw_uid) { | |
80 | pwent = getpwuid(getuid()); | |
81 | my_name = pwent->pw_name; | |
82 | } | |
83 | } | |
4e161d3b | 84 | if (setjmp(sjbuf)) |
1c12a606 | 85 | done(); |
4e161d3b RC |
86 | for (i=SIGHUP; i<=SIGTERM; i++) |
87 | setsig(i, delex); | |
5e3e9105 RC |
88 | i = mkstemp(lettmp); |
89 | tmpf = fdopen(i, "r+w"); | |
90 | if (i < 0 || tmpf == NULL) | |
4e161d3b RC |
91 | panic("mail: %s: cannot open for writing", lettmp); |
92 | /* | |
93 | * This protects against others reading mail from temp file and | |
94 | * if we exit, the file will be deleted already. | |
95 | */ | |
96 | unlink(lettmp); | |
1c12a606 BJ |
97 | if (argv[0][0] == 'r') |
98 | rmail++; | |
99 | if (argv[0][0] != 'r' && /* no favors for rmail*/ | |
100 | (argc == 1 || argv[1][0] == '-' && !any(argv[1][1], "rhd"))) | |
101 | printmail(argc, argv); | |
102 | else | |
f914d8ba | 103 | bulkmail(argc, argv); |
1c12a606 BJ |
104 | done(); |
105 | } | |
106 | ||
107 | setsig(i, f) | |
108 | int i; | |
109 | int (*f)(); | |
110 | { | |
4e161d3b | 111 | if (signal(i, SIG_IGN) != SIG_IGN) |
1c12a606 BJ |
112 | signal(i, f); |
113 | } | |
114 | ||
115 | any(c, str) | |
116 | register int c; | |
117 | register char *str; | |
118 | { | |
119 | ||
120 | while (*str) | |
121 | if (c == *str++) | |
122 | return(1); | |
123 | return(0); | |
124 | } | |
125 | ||
126 | printmail(argc, argv) | |
4e161d3b | 127 | char **argv; |
1c12a606 BJ |
128 | { |
129 | int flg, i, j, print; | |
130 | char *p, *getarg(); | |
131 | struct stat statb; | |
132 | ||
133 | setuid(getuid()); | |
134 | cat(mailfile, maildir, my_name); | |
4e161d3b | 135 | #ifdef notdef |
1c12a606 BJ |
136 | if (stat(mailfile, &statb) >= 0 |
137 | && (statb.st_mode & S_IFMT) == S_IFDIR) { | |
138 | strcat(mailfile, "/"); | |
139 | strcat(mailfile, my_name); | |
140 | } | |
4e161d3b RC |
141 | #endif |
142 | for (; argc > 1; argv++, argc--) { | |
143 | if (argv[1][0] != '-') | |
144 | break; | |
145 | switch (argv[1][1]) { | |
146 | ||
147 | case 'p': | |
148 | flgp++; | |
149 | /* fall thru... */ | |
150 | case 'q': | |
151 | delflg = 0; | |
152 | break; | |
153 | ||
154 | case 'f': | |
155 | if (argc >= 3) { | |
156 | strcpy(mailfile, argv[2]); | |
157 | argv++, argc--; | |
1c12a606 | 158 | } |
1c12a606 | 159 | break; |
4e161d3b RC |
160 | |
161 | case 'b': | |
162 | forward = 1; | |
163 | break; | |
164 | ||
165 | default: | |
166 | panic("unknown option %c", argv[1][1]); | |
167 | /*NOTREACHED*/ | |
168 | } | |
1c12a606 BJ |
169 | } |
170 | malf = fopen(mailfile, "r"); | |
171 | if (malf == NULL) { | |
4e161d3b | 172 | printf("No mail.\n"); |
1c12a606 BJ |
173 | return; |
174 | } | |
4e161d3b | 175 | flock(fileno(malf), LOCK_SH); |
1c12a606 | 176 | copymt(malf, tmpf); |
4e161d3b RC |
177 | fclose(malf); /* implicit unlock */ |
178 | fseek(tmpf, 0, L_SET); | |
1c12a606 BJ |
179 | |
180 | changed = 0; | |
181 | print = 1; | |
182 | for (i = 0; i < nlet; ) { | |
183 | j = forward ? i : nlet - i - 1; | |
4e161d3b RC |
184 | if (setjmp(sjbuf)) { |
185 | print = 0; | |
1c12a606 BJ |
186 | } else { |
187 | if (print) | |
188 | copylet(j, stdout, ORDINARY); | |
189 | print = 1; | |
190 | } | |
191 | if (flgp) { | |
192 | i++; | |
193 | continue; | |
194 | } | |
195 | setjmp(sjbuf); | |
4e161d3b | 196 | fputs("? ", stdout); |
1c12a606 BJ |
197 | fflush(stdout); |
198 | if (fgets(resp, LSIZE, stdin) == NULL) | |
199 | break; | |
200 | switch (resp[0]) { | |
201 | ||
202 | default: | |
4e161d3b | 203 | printf("usage\n"); |
1c12a606 BJ |
204 | case '?': |
205 | print = 0; | |
4e161d3b RC |
206 | printf("q\tquit\n"); |
207 | printf("x\texit without changing mail\n"); | |
208 | printf("p\tprint\n"); | |
209 | printf("s[file]\tsave (default mbox)\n"); | |
210 | printf("w[file]\tsame without header\n"); | |
211 | printf("-\tprint previous\n"); | |
212 | printf("d\tdelete\n"); | |
213 | printf("+\tnext (no delete)\n"); | |
214 | printf("m user\tmail to user\n"); | |
215 | printf("! cmd\texecute cmd\n"); | |
1c12a606 BJ |
216 | break; |
217 | ||
218 | case '+': | |
219 | case 'n': | |
220 | case '\n': | |
221 | i++; | |
222 | break; | |
223 | case 'x': | |
224 | changed = 0; | |
225 | case 'q': | |
226 | goto donep; | |
227 | case 'p': | |
228 | break; | |
229 | case '^': | |
230 | case '-': | |
231 | if (--i < 0) | |
232 | i = 0; | |
233 | break; | |
234 | case 'y': | |
235 | case 'w': | |
236 | case 's': | |
237 | flg = 0; | |
238 | if (resp[1] != '\n' && resp[1] != ' ') { | |
239 | printf("illegal\n"); | |
240 | flg++; | |
241 | print = 0; | |
242 | continue; | |
243 | } | |
244 | if (resp[1] == '\n' || resp[1] == '\0') { | |
245 | p = getenv("HOME"); | |
4e161d3b | 246 | if (p != 0) |
1c12a606 BJ |
247 | cat(resp+1, p, "/mbox"); |
248 | else | |
249 | cat(resp+1, "", "mbox"); | |
250 | } | |
251 | for (p = resp+1; (p = getarg(lfil, p)) != NULL; ) { | |
252 | malf = fopen(lfil, "a"); | |
253 | if (malf == NULL) { | |
4e161d3b RC |
254 | printf("mail: %s: cannot append\n", |
255 | lfil); | |
1c12a606 BJ |
256 | flg++; |
257 | continue; | |
258 | } | |
259 | copylet(j, malf, resp[0]=='w'? ZAP: ORDINARY); | |
260 | fclose(malf); | |
261 | } | |
262 | if (flg) | |
263 | print = 0; | |
264 | else { | |
265 | let[j].change = 'd'; | |
266 | changed++; | |
267 | i++; | |
268 | } | |
269 | break; | |
270 | case 'm': | |
271 | flg = 0; | |
272 | if (resp[1] == '\n' || resp[1] == '\0') { | |
273 | i++; | |
274 | continue; | |
275 | } | |
276 | if (resp[1] != ' ') { | |
277 | printf("invalid command\n"); | |
278 | flg++; | |
279 | print = 0; | |
280 | continue; | |
281 | } | |
282 | for (p = resp+1; (p = getarg(lfil, p)) != NULL; ) | |
69a0e58c | 283 | if (!sendmail(j, lfil, my_name)) |
1c12a606 BJ |
284 | flg++; |
285 | if (flg) | |
286 | print = 0; | |
287 | else { | |
288 | let[j].change = 'd'; | |
289 | changed++; | |
290 | i++; | |
291 | } | |
292 | break; | |
293 | case '!': | |
294 | system(resp+1); | |
295 | printf("!\n"); | |
296 | print = 0; | |
297 | break; | |
298 | case 'd': | |
299 | let[j].change = 'd'; | |
300 | changed++; | |
301 | i++; | |
302 | if (resp[1] == 'q') | |
303 | goto donep; | |
304 | break; | |
305 | } | |
306 | } | |
307 | donep: | |
308 | if (changed) | |
309 | copyback(); | |
310 | } | |
311 | ||
4e161d3b RC |
312 | /* copy temp or whatever back to /usr/spool/mail */ |
313 | copyback() | |
1c12a606 | 314 | { |
4e161d3b RC |
315 | register i, c; |
316 | int fd, new = 0, oldmask; | |
1c12a606 BJ |
317 | struct stat stbuf; |
318 | ||
4e161d3b RC |
319 | #define mask(s) (1 << ((s) - 1)) |
320 | oldmask = sigblock(mask(SIGINT)|mask(SIGHUP)|mask(SIGQUIT)); | |
321 | #undef mask | |
322 | fd = open(mailfile, O_RDWR | O_CREAT, MAILMODE); | |
323 | if (fd >= 0) { | |
324 | flock(fd, LOCK_EX); | |
325 | malf = fdopen(fd, "r+w"); | |
326 | } | |
327 | if (fd < 0 || malf == NULL) | |
328 | panic("can't rewrite %s", lfil); | |
329 | fstat(fd, &stbuf); | |
1c12a606 | 330 | if (stbuf.st_size != let[nlet].adr) { /* new mail has arrived */ |
4e161d3b RC |
331 | fseek(malf, let[nlet].adr, L_SET); |
332 | fseek(tmpf, let[nlet].adr, L_SET); | |
333 | while ((c = getc(malf)) != EOF) | |
334 | putc(c, tmpf); | |
1c12a606 BJ |
335 | let[++nlet].adr = stbuf.st_size; |
336 | new = 1; | |
4e161d3b | 337 | fseek(malf, 0, L_SET); |
1c12a606 | 338 | } |
4e161d3b | 339 | ftruncate(fd, 0); |
1c12a606 | 340 | for (i = 0; i < nlet; i++) |
4e161d3b | 341 | if (let[i].change != 'd') |
1c12a606 | 342 | copylet(i, malf, ORDINARY); |
4e161d3b | 343 | fclose(malf); /* implict unlock */ |
1c12a606 | 344 | if (new) |
4e161d3b RC |
345 | printf("New mail has arrived.\n"); |
346 | sigsetmask(oldmask); | |
1c12a606 BJ |
347 | } |
348 | ||
4e161d3b RC |
349 | /* copy mail (f1) to temp (f2) */ |
350 | copymt(f1, f2) | |
351 | FILE *f1, *f2; | |
1c12a606 BJ |
352 | { |
353 | long nextadr; | |
354 | ||
355 | nlet = nextadr = 0; | |
356 | let[0].adr = 0; | |
357 | while (fgets(line, LSIZE, f1) != NULL) { | |
358 | if (isfrom(line)) | |
359 | let[nlet++].adr = nextadr; | |
360 | nextadr += strlen(line); | |
361 | fputs(line, f2); | |
362 | } | |
363 | let[nlet].adr = nextadr; /* last plus 1 */ | |
364 | } | |
365 | ||
13bd902d EA |
366 | copylet(n, f, type) |
367 | FILE *f; | |
368 | { | |
369 | int ch; | |
370 | long k; | |
4e161d3b | 371 | char hostname[32]; |
13bd902d | 372 | |
4e161d3b | 373 | fseek(tmpf, let[n].adr, L_SET); |
1c12a606 | 374 | k = let[n+1].adr - let[n].adr; |
4e161d3b RC |
375 | while (k-- > 1 && (ch = getc(tmpf)) != '\n') |
376 | if (type != ZAP) | |
377 | putc(ch, f); | |
378 | switch (type) { | |
379 | ||
380 | case REMOTE: | |
cf288731 BJ |
381 | gethostname(hostname, sizeof (hostname)); |
382 | fprintf(f, " remote from %s\n", hostname); | |
4e161d3b RC |
383 | break; |
384 | ||
385 | case FORWARD: | |
1c12a606 | 386 | fprintf(f, forwmsg); |
4e161d3b RC |
387 | break; |
388 | ||
389 | case ORDINARY: | |
390 | putc(ch, f); | |
391 | break; | |
392 | ||
69a0e58c RC |
393 | case ZAP: |
394 | break; | |
395 | ||
4e161d3b RC |
396 | default: |
397 | panic("Bad letter type %d to copylet.", type); | |
398 | } | |
399 | while (k-- > 1) { | |
400 | ch = getc(tmpf); | |
401 | putc(ch, f); | |
402 | } | |
403 | if (type != ZAP || ch != '\n') | |
404 | putc(getc(tmpf), f); | |
1c12a606 BJ |
405 | } |
406 | ||
407 | isfrom(lp) | |
408 | register char *lp; | |
409 | { | |
410 | register char *p; | |
411 | ||
412 | for (p = from; *p; ) | |
413 | if (*lp++ != *p++) | |
414 | return(0); | |
415 | return(1); | |
416 | } | |
417 | ||
f914d8ba | 418 | bulkmail(argc, argv) |
1c12a606 BJ |
419 | char **argv; |
420 | { | |
421 | char truename[100]; | |
422 | int first; | |
423 | register char *cp; | |
424 | int gaver = 0; | |
1c12a606 BJ |
425 | char *newargv[1000]; |
426 | register char **ap; | |
427 | register char **vp; | |
428 | int dflag; | |
429 | ||
430 | dflag = 0; | |
4e161d3b | 431 | if (argc < 1) { |
1c12a606 | 432 | fprintf(stderr, "puke\n"); |
4e161d3b RC |
433 | return; |
434 | } | |
1c12a606 | 435 | for (vp = argv, ap = newargv + 1; (*ap = *vp++) != 0; ap++) |
1c12a606 BJ |
436 | if (ap[0][0] == '-' && ap[0][1] == 'd') |
437 | dflag++; | |
4e161d3b | 438 | if (!dflag) { |
ac57be53 | 439 | /* give it to sendmail, rah rah! */ |
1c12a606 BJ |
440 | unlink(lettmp); |
441 | ap = newargv+1; | |
442 | if (rmail) | |
443 | *ap-- = "-s"; | |
ac57be53 | 444 | *ap = "-sendmail"; |
608f9cfc | 445 | setuid(getuid()); |
ac57be53 EA |
446 | execv(SENDMAIL, ap); |
447 | perror(SENDMAIL); | |
1c12a606 BJ |
448 | exit(EX_UNAVAILABLE); |
449 | } | |
1c12a606 BJ |
450 | |
451 | truename[0] = 0; | |
452 | line[0] = '\0'; | |
453 | ||
454 | /* | |
455 | * When we fall out of this, argv[1] should be first name, | |
456 | * argc should be number of names + 1. | |
457 | */ | |
458 | ||
459 | while (argc > 1 && *argv[1] == '-') { | |
460 | cp = *++argv; | |
461 | argc--; | |
462 | switch (cp[1]) { | |
463 | case 'r': | |
4e161d3b | 464 | if (argc <= 1) |
1c12a606 | 465 | usage(); |
413d039a EA |
466 | if (strcmp(my_name, "root") == 0 || |
467 | strcmp(my_name, "daemon") == 0 || | |
468 | strcmp(my_name, "network") == 0 || | |
469 | strcmp(my_name, "uucp")) { | |
470 | gaver++; | |
471 | strcpy(truename, argv[1]); | |
472 | fgets(line, LSIZE, stdin); | |
473 | if (strncmp("From", line, 4) == 0) | |
474 | line[0] = '\0'; | |
8bc5e57f | 475 | } |
1c12a606 BJ |
476 | argv++; |
477 | argc--; | |
478 | break; | |
479 | ||
480 | case 'h': | |
4e161d3b | 481 | if (argc <= 1) |
1c12a606 | 482 | usage(); |
1c12a606 BJ |
483 | hseqno = atoi(argv[1]); |
484 | argv++; | |
485 | argc--; | |
486 | break; | |
487 | ||
1c12a606 BJ |
488 | case 'd': |
489 | break; | |
1c12a606 BJ |
490 | |
491 | default: | |
492 | usage(); | |
1c12a606 BJ |
493 | } |
494 | } | |
4e161d3b | 495 | if (argc <= 1) |
1c12a606 | 496 | usage(); |
1c12a606 BJ |
497 | if (gaver == 0) |
498 | strcpy(truename, my_name); | |
1c12a606 BJ |
499 | time(&iop); |
500 | fprintf(tmpf, "%s%s %s", from, truename, ctime(&iop)); | |
501 | iop = ftell(tmpf); | |
4e161d3b RC |
502 | flgf = first = 1; |
503 | for (;;) { | |
504 | if (first) { | |
505 | first = 0; | |
506 | if (*line == '\0' && fgets(line, LSIZE, stdin) == NULL) | |
507 | break; | |
508 | } else { | |
509 | if (fgets(line, LSIZE, stdin) == NULL) | |
510 | break; | |
511 | } | |
512 | if (*line == '.' && line[1] == '\n' && isatty(fileno(stdin))) | |
1c12a606 BJ |
513 | break; |
514 | if (isfrom(line)) | |
4e161d3b | 515 | putc('>', tmpf); |
1c12a606 BJ |
516 | fputs(line, tmpf); |
517 | flgf = 0; | |
518 | } | |
4e161d3b | 519 | putc('\n', tmpf); |
1c12a606 BJ |
520 | nlet = 1; |
521 | let[0].adr = 0; | |
522 | let[1].adr = ftell(tmpf); | |
1c12a606 BJ |
523 | if (flgf) |
524 | return; | |
4e161d3b | 525 | while (--argc > 0) |
f914d8ba | 526 | if (!sendmail(0, *++argv, truename)) |
1c12a606 | 527 | error++; |
fd64b7dc | 528 | if (error && safefile(dead)) { |
1c12a606 BJ |
529 | setuid(getuid()); |
530 | malf = fopen(dead, "w"); | |
531 | if (malf == NULL) { | |
4e161d3b | 532 | printf("mail: cannot open %s\n", dead); |
1c12a606 BJ |
533 | fclose(tmpf); |
534 | return; | |
535 | } | |
536 | copylet(0, malf, ZAP); | |
537 | fclose(malf); | |
4e161d3b | 538 | printf("Mail saved in %s\n", dead); |
1c12a606 BJ |
539 | } |
540 | fclose(tmpf); | |
541 | } | |
542 | ||
69a0e58c | 543 | sendrmt(n, name) |
1c12a606 | 544 | char *name; |
1c12a606 BJ |
545 | { |
546 | FILE *rmf, *popen(); | |
547 | register char *p; | |
548 | char rsys[64], cmd[64]; | |
69a0e58c | 549 | register pid; |
1c12a606 BJ |
550 | int sts; |
551 | ||
69a0e58c RC |
552 | #ifdef notdef |
553 | if (any('^', name)) { | |
1c12a606 BJ |
554 | while (p = index(name, '^')) |
555 | *p = '!'; | |
556 | if (strncmp(name, "researc", 7)) { | |
557 | strcpy(rsys, "research"); | |
558 | if (*name != '!') | |
559 | --name; | |
560 | goto skip; | |
561 | } | |
562 | } | |
69a0e58c RC |
563 | #endif |
564 | for (p=rsys; *name!='!'; *p++ = *name++) | |
565 | if (*name=='\0') | |
566 | return(0); /* local address, no '!' */ | |
1c12a606 | 567 | *p = '\0'; |
69a0e58c | 568 | if (name[1]=='\0') { |
4e161d3b | 569 | printf("null name\n"); |
1c12a606 BJ |
570 | return(0); |
571 | } | |
572 | skip: | |
573 | if ((pid = fork()) == -1) { | |
574 | fprintf(stderr, "mail: can't create proc for remote\n"); | |
575 | return(0); | |
576 | } | |
577 | if (pid) { | |
578 | while (wait(&sts) != pid) { | |
579 | if (wait(&sts)==-1) | |
580 | return(0); | |
581 | } | |
582 | return(!sts); | |
583 | } | |
584 | setuid(getuid()); | |
69a0e58c RC |
585 | if (any('!', name+1)) |
586 | sprintf(cmd, "uux - %s!rmail \\(%s\\)", rsys, name+1); | |
587 | else | |
588 | sprintf(cmd, "uux - %s!rmail %s", rsys, name+1); | |
1c12a606 BJ |
589 | if ((rmf=popen(cmd, "w")) == NULL) |
590 | exit(1); | |
69a0e58c | 591 | copylet(n, rmf, REMOTE); |
aa26b6a1 | 592 | exit(pclose(rmf) != 0); |
1c12a606 BJ |
593 | } |
594 | ||
1c12a606 BJ |
595 | usage() |
596 | { | |
597 | ||
598 | fprintf(stderr, "Usage: mail [ -f ] people . . .\n"); | |
f2a88515 | 599 | error = EX_USAGE; |
4e161d3b | 600 | done(); |
1c12a606 BJ |
601 | } |
602 | ||
f914d8ba | 603 | #include <sys/socket.h> |
b1198826 | 604 | #include <netinet/in.h> |
a341edb7 | 605 | #include <netdb.h> |
4e161d3b RC |
606 | |
607 | notifybiff(msg) | |
608 | char *msg; | |
609 | { | |
610 | static struct sockaddr_in addr; | |
611 | static int f = -1; | |
612 | ||
613 | if (addr.sin_family == 0) { | |
614 | struct hostent *hp = gethostbyname("localhost"); | |
615 | struct servent *sp = getservbyname("biff", "udp"); | |
616 | ||
617 | if (hp && sp) { | |
618 | addr.sin_family = hp->h_addrtype; | |
619 | bcopy(hp->h_addr, &addr.sin_addr, hp->h_length); | |
620 | addr.sin_port = sp->s_port; | |
621 | } | |
622 | } | |
623 | if (addr.sin_family) { | |
624 | if (f < 0) | |
625 | f = socket(AF_INET, SOCK_DGRAM, 0); | |
626 | sendto(f, msg, strlen(msg)+1, 0, &addr, sizeof (addr)); | |
627 | } | |
628 | } | |
f914d8ba BJ |
629 | |
630 | sendmail(n, name, fromaddr) | |
4e161d3b RC |
631 | int n; |
632 | char *name, *fromaddr; | |
1c12a606 | 633 | { |
4e161d3b RC |
634 | char file[256]; |
635 | int mask, fd; | |
636 | struct passwd *pw; | |
637 | #ifdef notdef | |
1c12a606 | 638 | struct stat statb; |
4e161d3b | 639 | #endif |
517d4a63 | 640 | char buf[128]; |
1c12a606 | 641 | |
69a0e58c RC |
642 | if (*name=='!') |
643 | name++; | |
644 | if (any('!', name)) | |
645 | return (sendrmt(n, name)); | |
1c12a606 | 646 | if ((pw = getpwnam(name)) == NULL) { |
4e161d3b | 647 | printf("mail: can't send to %s\n", name); |
1c12a606 BJ |
648 | return(0); |
649 | } | |
650 | cat(file, maildir, name); | |
4e161d3b | 651 | #ifdef notdef |
1c12a606 BJ |
652 | if (stat(file, &statb) >= 0 && (statb.st_mode & S_IFMT) == S_IFDIR) { |
653 | strcat(file, "/"); | |
654 | strcat(file, name); | |
655 | } | |
4e161d3b | 656 | #endif |
fd64b7dc | 657 | if (!safefile(file)) |
47fe5c20 | 658 | return(0); |
4e161d3b RC |
659 | fd = open(file, O_WRONLY | O_CREAT, MAILMODE); |
660 | if (fd >= 0) { | |
661 | flock(fd, LOCK_EX); | |
662 | malf = fdopen(fd, "a"); | |
1c12a606 | 663 | } |
4e161d3b RC |
664 | if (fd < 0 || malf == NULL) { |
665 | close(fd); | |
666 | printf("mail: %s: cannot append\n", file); | |
667 | return(0); | |
517d4a63 | 668 | } |
4e161d3b RC |
669 | fchown(fd, pw->pw_uid, pw->pw_gid); |
670 | sprintf(buf, "%s@%d\n", name, ftell(malf)); | |
1c12a606 | 671 | copylet(n, malf, ORDINARY); |
f914d8ba | 672 | fclose(malf); |
4e161d3b | 673 | notifybiff(buf); |
1c12a606 BJ |
674 | return(1); |
675 | } | |
676 | ||
4e161d3b | 677 | delex(i) |
1c12a606 | 678 | { |
4e161d3b RC |
679 | setsig(i, delex); |
680 | putc('\n', stderr); | |
681 | if (delflg) | |
1c12a606 BJ |
682 | longjmp(sjbuf, 1); |
683 | done(); | |
684 | } | |
685 | ||
1c12a606 BJ |
686 | done() |
687 | { | |
4e161d3b | 688 | |
1c12a606 | 689 | unlink(lettmp); |
1c12a606 BJ |
690 | exit(error); |
691 | } | |
692 | ||
693 | cat(to, from1, from2) | |
4e161d3b | 694 | char *to, *from1, *from2; |
1c12a606 | 695 | { |
4e161d3b RC |
696 | register char *cp, *dp; |
697 | ||
698 | cp = to; | |
699 | for (dp = from1; *cp = *dp++; cp++) | |
700 | ; | |
701 | for (dp = from2; *cp++ = *dp++; ) | |
702 | ; | |
1c12a606 BJ |
703 | } |
704 | ||
4e161d3b RC |
705 | /* copy p... into s, update p */ |
706 | char * | |
707 | getarg(s, p) | |
708 | register char *s, *p; | |
1c12a606 BJ |
709 | { |
710 | while (*p == ' ' || *p == '\t') | |
711 | p++; | |
712 | if (*p == '\n' || *p == '\0') | |
713 | return(NULL); | |
714 | while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0') | |
715 | *s++ = *p++; | |
716 | *s = '\0'; | |
717 | return(p); | |
718 | } | |
fd64b7dc EA |
719 | |
720 | safefile(f) | |
721 | char *f; | |
722 | { | |
723 | struct stat statb; | |
724 | ||
725 | if (lstat(f, &statb) < 0) | |
726 | return (1); | |
727 | if (statb.st_nlink != 1 || (statb.st_mode & S_IFMT) == S_IFLNK) { | |
4e161d3b RC |
728 | fprintf(stderr, |
729 | "mail: %s has more than one link or is a symbolic link\n", | |
730 | f); | |
fd64b7dc EA |
731 | return (0); |
732 | } | |
733 | return (1); | |
734 | } | |
4e161d3b RC |
735 | |
736 | panic(msg, a1, a2, a3) | |
737 | char *msg; | |
738 | { | |
739 | ||
740 | fprintf(stderr, "mail: "); | |
741 | fprintf(stderr, msg, a1, a2, a3); | |
742 | fprintf(stderr, "\n"); | |
743 | done(); | |
744 | } |