Commit | Line | Data |
---|---|---|
aeb2545d DF |
1 | /* |
2 | ** Sendmail | |
3 | ** Copyright (c) 1983 Eric P. Allman | |
4 | ** Berkeley, California | |
5 | ** | |
6 | ** Copyright (c) 1983 Regents of the University of California. | |
7 | ** All rights reserved. The Berkeley software License Agreement | |
8 | ** specifies the terms and conditions for redistribution. | |
9 | */ | |
10 | ||
11 | #ifndef lint | |
12 | char copyright[] = | |
13 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
14 | All rights reserved.\n"; | |
15 | #endif not lint | |
16 | ||
17 | #ifndef lint | |
57c97d4a | 18 | static char SccsId[] = "@(#)main.c 5.9 (Berkeley) %G%"; |
aeb2545d DF |
19 | #endif not lint |
20 | ||
ed45aae1 | 21 | # define _DEFINE |
b3cbe40f | 22 | # include <signal.h> |
83f674d8 | 23 | # include <sgtty.h> |
96faada8 | 24 | # include "sendmail.h" |
b3cbe40f | 25 | |
17a67c62 | 26 | # ifdef lint |
2e3062fe | 27 | char edata, end; |
17a67c62 EA |
28 | # endif lint |
29 | ||
b3cbe40f | 30 | /* |
96faada8 | 31 | ** SENDMAIL -- Post mail to a set of destinations. |
b3cbe40f EA |
32 | ** |
33 | ** This is the basic mail router. All user mail programs should | |
96faada8 | 34 | ** call this routine to actually deliver mail. Sendmail in |
b3cbe40f EA |
35 | ** turn calls a bunch of mail servers that do the real work of |
36 | ** delivering the mail. | |
37 | ** | |
3199e4f3 EA |
38 | ** Sendmail is driven by tables read in from /usr/lib/sendmail.cf |
39 | ** (read by readcf.c). Some more static configuration info, | |
40 | ** including some code that you may want to tailor for your | |
41 | ** installation, is in conf.c. You may also want to touch | |
42 | ** daemon.c (if you have some other IPC mechanism), acct.c | |
43 | ** (to change your accounting), names.c (to adjust the name | |
44 | ** server mechanism). | |
b3cbe40f EA |
45 | ** |
46 | ** Usage: | |
7338e3d4 | 47 | ** /usr/lib/sendmail [flags] addr ... |
b3cbe40f | 48 | ** |
7338e3d4 | 49 | ** See the associated documentation for details. |
b3cbe40f | 50 | ** |
b3cbe40f | 51 | ** Author: |
7338e3d4 EA |
52 | ** Eric Allman, UCB/INGRES (until 10/81) |
53 | ** Britton-Lee, Inc., purveyors of fine | |
54 | ** database computers (from 11/81) | |
55 | ** The support of the INGRES Project and Britton-Lee is | |
56 | ** gratefully acknowledged. Britton-Lee in | |
57 | ** particular had absolutely nothing to gain from | |
58 | ** my involvement in this project. | |
b3cbe40f EA |
59 | */ |
60 | ||
61 | ||
62 | ||
63 | ||
64 | ||
83f674d8 | 65 | int NextMailer; /* "free" index into Mailer struct */ |
912acb74 | 66 | char *FullName; /* sender's full name */ |
be2fcca9 | 67 | ENVELOPE BlankEnvelope; /* a "blank" envelope */ |
2654b031 | 68 | ENVELOPE MainEnvelope; /* the envelope around the basic letter */ |
2e3062fe EA |
69 | ADDRESS NullAddress = /* a null address */ |
70 | { "", "", "" }; | |
71 | ||
72 | /* | |
73 | ** Pointers for setproctitle. | |
74 | ** This allows "ps" listings to give more useful information. | |
75 | ** These must be kept out of BSS for frozen configuration files | |
76 | ** to work. | |
77 | */ | |
78 | ||
79 | # ifdef SETPROCTITLE | |
80 | char **Argv = NULL; /* pointer to argument vector */ | |
81 | char *LastArgv = NULL; /* end of argv */ | |
82 | # endif SETPROCTITLE | |
b3cbe40f | 83 | |
4aebfe5d EA |
84 | #ifdef DAEMON |
85 | #ifndef SMTP | |
86 | ERROR %%%% Cannot have daemon mode without SMTP %%%% ERROR | |
87 | #endif SMTP | |
88 | #endif DAEMON | |
89 | ||
b3cbe40f EA |
90 | |
91 | ||
92 | ||
93 | ||
94 | ||
e36705df | 95 | main(argc, argv, envp) |
b3cbe40f EA |
96 | int argc; |
97 | char **argv; | |
e36705df | 98 | char **envp; |
b3cbe40f EA |
99 | { |
100 | register char *p; | |
acae5a9d | 101 | char **av; |
17df0fcb | 102 | char *locname; |
b3cbe40f | 103 | extern int finis(); |
b3cbe40f | 104 | extern char Version[]; |
b3cbe40f | 105 | char *from; |
b3cbe40f | 106 | typedef int (*fnptr)(); |
be2fcca9 | 107 | STAB *st; |
9e3c0a28 | 108 | register int i; |
4388720d | 109 | bool readconfig = TRUE; |
aba51985 | 110 | bool queuemode = FALSE; /* process queue requests */ |
be2fcca9 | 111 | static bool reenter = FALSE; |
57c97d4a | 112 | char jbuf[30]; /* holds MyHostName */ |
f6a0cc15 | 113 | extern bool safefile(); |
ed45aae1 | 114 | extern time_t convtime(); |
dd1fe05b | 115 | extern putheader(), putbody(); |
be2fcca9 | 116 | extern ENVELOPE *newenvelope(); |
6e2f38be | 117 | extern intsig(); |
1dbda134 | 118 | extern char **myhostname(); |
22e6d6b8 | 119 | extern char *arpadate(); |
e36705df | 120 | extern char **environ; |
b72377c6 | 121 | |
22659072 EA |
122 | /* |
123 | ** Check to see if we reentered. | |
124 | ** This would normally happen if e_putheader or e_putbody | |
125 | ** were NULL when invoked. | |
126 | */ | |
127 | ||
b72377c6 EA |
128 | if (reenter) |
129 | { | |
130 | syserr("main: reentered!"); | |
131 | abort(); | |
132 | } | |
133 | reenter = TRUE; | |
abae7b2d | 134 | extern ADDRESS *recipient(); |
17df0fcb | 135 | bool canrename; |
b3cbe40f | 136 | |
d15bd559 EA |
137 | /* |
138 | ** Be sure we have enough file descriptors. | |
139 | */ | |
140 | ||
560a80d9 | 141 | for (i = 3; i < 50; i++) |
d15bd559 EA |
142 | (void) close(i); |
143 | errno = 0; | |
144 | ||
8ff78b51 EA |
145 | /* |
146 | ** Set default values for variables. | |
147 | ** These cannot be in initialized data space. | |
148 | */ | |
149 | ||
150 | setdefaults(); | |
151 | ||
bb09c502 EA |
152 | /* set up the blank envelope */ |
153 | BlankEnvelope.e_puthdr = putheader; | |
154 | BlankEnvelope.e_putbody = putbody; | |
155 | BlankEnvelope.e_xfp = NULL; | |
2e3062fe | 156 | STRUCTCOPY(NullAddress, BlankEnvelope.e_from); |
bb09c502 | 157 | CurEnv = &BlankEnvelope; |
2e3062fe | 158 | STRUCTCOPY(NullAddress, MainEnvelope.e_from); |
bb09c502 | 159 | |
22659072 EA |
160 | /* |
161 | ** Do a quick prescan of the argument list. | |
162 | ** We do this to find out if we can potentially thaw the | |
163 | ** configuration file. If not, we do the thaw now so that | |
164 | ** the argument processing applies to this run rather than | |
165 | ** to the run that froze the configuration. | |
166 | */ | |
167 | ||
d6b27179 | 168 | argv[argc] = NULL; |
22659072 | 169 | av = argv; |
560a80d9 | 170 | while ((p = *++av) != NULL) |
22659072 | 171 | { |
560a80d9 EA |
172 | if (strncmp(p, "-C", 2) == 0) |
173 | { | |
174 | ConfFile = &p[2]; | |
175 | if (ConfFile[0] == '\0') | |
176 | ConfFile = "sendmail.cf"; | |
0e306e7f EA |
177 | (void) setgid(getrgid()); |
178 | (void) setuid(getruid()); | |
560a80d9 EA |
179 | break; |
180 | } | |
181 | else if (strncmp(p, "-bz", 3) == 0) | |
22659072 EA |
182 | break; |
183 | } | |
560a80d9 | 184 | if (p == NULL) |
22659072 EA |
185 | readconfig = !thaw(FreezeFile); |
186 | ||
e36705df | 187 | /* reset the environment after the thaw */ |
42bbf376 EA |
188 | for (i = 0; i < MAXUSERENVIRON && envp[i] != NULL; i++) |
189 | UserEnviron[i] = newstr(envp[i]); | |
190 | UserEnviron[i] = NULL; | |
191 | environ = UserEnviron; | |
192 | ||
193 | # ifdef SETPROCTITLE | |
194 | /* | |
195 | ** Save start and extent of argv for setproctitle. | |
196 | */ | |
197 | ||
198 | Argv = argv; | |
199 | LastArgv = envp[i - 1] + strlen(envp[i - 1]); | |
200 | # endif SETPROCTITLE | |
e36705df | 201 | |
22659072 EA |
202 | /* |
203 | ** Now do basic initialization | |
204 | */ | |
205 | ||
cbdb7357 EA |
206 | InChannel = stdin; |
207 | OutChannel = stdout; | |
b3cbe40f | 208 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) |
6e2f38be | 209 | (void) signal(SIGINT, intsig); |
eb211e2c | 210 | if (signal(SIGHUP, SIG_IGN) != SIG_IGN) |
6e2f38be EA |
211 | (void) signal(SIGHUP, intsig); |
212 | (void) signal(SIGTERM, intsig); | |
ed7382d3 | 213 | (void) signal(SIGPIPE, SIG_IGN); |
a0554f81 | 214 | OldUmask = umask(0); |
75f95954 | 215 | OpMode = MD_DELIVER; |
e673aad7 | 216 | MotherPid = getpid(); |
561c7c50 EA |
217 | # ifndef V6 |
218 | FullName = getenv("NAME"); | |
219 | # endif V6 | |
dd1fe05b | 220 | |
b3cbe40f | 221 | # ifdef LOG |
b3cbe40f | 222 | # endif LOG |
b3cbe40f EA |
223 | errno = 0; |
224 | from = NULL; | |
378e8da7 | 225 | |
4388720d | 226 | if (readconfig) |
1dbda134 | 227 | { |
4388720d EA |
228 | /* initialize some macros, etc. */ |
229 | initmacros(); | |
230 | ||
231 | /* hostname */ | |
232 | av = myhostname(jbuf, sizeof jbuf); | |
233 | if (jbuf[0] != '\0') | |
234 | { | |
235 | p = newstr(jbuf); | |
236 | define('w', p, CurEnv); | |
237 | setclass('w', p); | |
238 | } | |
239 | while (av != NULL && *av != NULL) | |
240 | setclass('w', *av++); | |
241 | ||
242 | /* version */ | |
243 | define('v', Version, CurEnv); | |
1dbda134 | 244 | } |
378e8da7 EA |
245 | |
246 | /* current time */ | |
22e6d6b8 | 247 | define('b', arpadate((char *) NULL), CurEnv); |
378e8da7 | 248 | |
a691a4a6 | 249 | /* |
c1e24818 | 250 | ** Crack argv. |
a691a4a6 EA |
251 | */ |
252 | ||
acae5a9d | 253 | av = argv; |
26a3626c EA |
254 | p = rindex(*av, '/'); |
255 | if (p++ == NULL) | |
256 | p = *av; | |
257 | if (strcmp(p, "newaliases") == 0) | |
75f95954 | 258 | OpMode = MD_INITALIAS; |
26a3626c | 259 | else if (strcmp(p, "mailq") == 0) |
75f95954 | 260 | OpMode = MD_PRINT; |
34fe0a9b EA |
261 | else if (strcmp(p, "smtpd") == 0) |
262 | OpMode = MD_DAEMON; | |
3110074f | 263 | while ((p = *++av) != NULL && p[0] == '-') |
a691a4a6 | 264 | { |
c1e24818 | 265 | switch (p[1]) |
a691a4a6 | 266 | { |
75f95954 EA |
267 | case 'b': /* operations mode */ |
268 | switch (p[2]) | |
c1e24818 | 269 | { |
75f95954 EA |
270 | case MD_DAEMON: |
271 | # ifndef DAEMON | |
272 | syserr("Daemon mode not implemented"); | |
273 | break; | |
274 | # endif DAEMON | |
275 | case MD_SMTP: | |
276 | # ifndef SMTP | |
c1e24818 | 277 | syserr("I don't speak SMTP"); |
75f95954 | 278 | break; |
c1e24818 | 279 | # endif SMTP |
75f95954 EA |
280 | case MD_ARPAFTP: |
281 | case MD_DELIVER: | |
282 | case MD_VERIFY: | |
283 | case MD_TEST: | |
284 | case MD_INITALIAS: | |
285 | case MD_PRINT: | |
286 | case MD_FREEZE: | |
287 | OpMode = p[2]; | |
288 | break; | |
289 | ||
290 | default: | |
291 | syserr("Invalid operation mode %c", p[2]); | |
292 | break; | |
c1e24818 EA |
293 | } |
294 | break; | |
295 | ||
560a80d9 | 296 | case 'C': /* select configuration file (already done) */ |
c1e24818 | 297 | break; |
a691a4a6 | 298 | |
c1e24818 EA |
299 | # ifdef DEBUG |
300 | case 'd': /* debug */ | |
301 | tTsetup(tTdvect, sizeof tTdvect, "0-99.1"); | |
302 | tTflag(&p[2]); | |
303 | setbuf(stdout, (char *) NULL); | |
304 | printf("Version %s\n", Version); | |
305 | break; | |
306 | # endif DEBUG | |
b3cbe40f | 307 | |
b3cbe40f | 308 | case 'f': /* from address */ |
c1e24818 | 309 | case 'r': /* obsolete -f flag */ |
b3cbe40f | 310 | p += 2; |
3110074f | 311 | if (*p == '\0' && ((p = *++av) == NULL || *p == '-')) |
b3cbe40f | 312 | { |
acae5a9d | 313 | p = *++av; |
3110074f | 314 | if (p == NULL || *p == '-') |
b3cbe40f EA |
315 | { |
316 | syserr("No \"from\" person"); | |
acae5a9d | 317 | av--; |
b3cbe40f EA |
318 | break; |
319 | } | |
320 | } | |
22659072 | 321 | if (from != NULL) |
b3cbe40f EA |
322 | { |
323 | syserr("More than one \"from\" person"); | |
324 | break; | |
325 | } | |
2e3062fe | 326 | from = newstr(p); |
b3cbe40f EA |
327 | break; |
328 | ||
6da7b890 | 329 | case 'F': /* set full name */ |
74c5fe7c | 330 | p += 2; |
3110074f | 331 | if (*p == '\0' && ((p = *++av) == NULL || *p == '-')) |
74c5fe7c | 332 | { |
3110074f EA |
333 | syserr("Bad -F flag"); |
334 | av--; | |
335 | break; | |
74c5fe7c | 336 | } |
2e3062fe | 337 | FullName = newstr(p); |
6da7b890 EA |
338 | break; |
339 | ||
b3cbe40f EA |
340 | case 'h': /* hop count */ |
341 | p += 2; | |
3110074f | 342 | if (*p == '\0' && ((p = *++av) == NULL || !isdigit(*p))) |
b3cbe40f | 343 | { |
3110074f EA |
344 | syserr("Bad hop count (%s)", p); |
345 | av--; | |
346 | break; | |
b3cbe40f | 347 | } |
7338e3d4 | 348 | CurEnv->e_hopcount = atoi(p); |
b3cbe40f | 349 | break; |
b3cbe40f | 350 | |
c1e24818 EA |
351 | case 'n': /* don't alias */ |
352 | NoAlias = TRUE; | |
d59b067a EA |
353 | break; |
354 | ||
c1e24818 EA |
355 | case 'o': /* set option */ |
356 | setoption(p[2], &p[3], FALSE, TRUE); | |
14a39063 | 357 | break; |
cbdb7357 | 358 | |
ed45aae1 | 359 | case 'q': /* run queue files at intervals */ |
884a20cb | 360 | # ifdef QUEUE |
aba51985 | 361 | queuemode = TRUE; |
25b9d645 | 362 | QueueIntvl = convtime(&p[2]); |
884a20cb EA |
363 | # else QUEUE |
364 | syserr("I don't know about queues"); | |
365 | # endif QUEUE | |
ed45aae1 EA |
366 | break; |
367 | ||
c1e24818 EA |
368 | case 't': /* read recipients from message */ |
369 | GrabTo = TRUE; | |
370 | break; | |
371 | ||
372 | /* compatibility flags */ | |
c1e24818 EA |
373 | case 'c': /* connect to non-local mailers */ |
374 | case 'e': /* error message disposition */ | |
375 | case 'i': /* don't let dot stop me */ | |
376 | case 'm': /* send to me too */ | |
377 | case 'T': /* set timeout interval */ | |
378 | case 'v': /* give blow-by-blow description */ | |
379 | setoption(p[1], &p[2], FALSE, TRUE); | |
35cc3fad EA |
380 | break; |
381 | ||
c1e24818 EA |
382 | case 's': /* save From lines in headers */ |
383 | setoption('f', &p[2], FALSE, TRUE); | |
b3cbe40f | 384 | break; |
26a3626c EA |
385 | |
386 | # ifdef DBM | |
387 | case 'I': /* initialize alias DBM file */ | |
75f95954 | 388 | OpMode = MD_INITALIAS; |
26a3626c EA |
389 | break; |
390 | # endif DBM | |
b3cbe40f EA |
391 | } |
392 | } | |
393 | ||
9e3c0a28 | 394 | /* |
2cce0c26 EA |
395 | ** Do basic initialization. |
396 | ** Read system control file. | |
179c1218 | 397 | ** Extract special fields for local use. |
9e3c0a28 EA |
398 | */ |
399 | ||
46f6ec52 EA |
400 | if (OpMode == MD_FREEZE || readconfig) |
401 | readcf(ConfFile); | |
22659072 | 402 | |
75f95954 | 403 | switch (OpMode) |
acae5a9d | 404 | { |
26a3626c | 405 | case MD_FREEZE: |
a9621daf | 406 | /* this is critical to avoid forgeries of the frozen config */ |
0e306e7f EA |
407 | (void) setgid(getgid()); |
408 | (void) setuid(getuid()); | |
a9621daf EA |
409 | |
410 | /* freeze the configuration */ | |
8fe4fb9b | 411 | freeze(FreezeFile); |
acae5a9d | 412 | exit(EX_OK); |
26a3626c EA |
413 | |
414 | case MD_INITALIAS: | |
415 | Verbose = TRUE; | |
416 | break; | |
acae5a9d | 417 | } |
179c1218 | 418 | |
6130649c EA |
419 | /* do heuristic mode adjustment */ |
420 | if (Verbose) | |
75f95954 EA |
421 | { |
422 | /* turn off noconnect option */ | |
423 | setoption('c', "F", TRUE, FALSE); | |
424 | ||
425 | /* turn on interactive delivery */ | |
426 | setoption('d', "", TRUE, FALSE); | |
427 | } | |
6130649c | 428 | |
179c1218 | 429 | /* our name for SMTP codes */ |
a73ae8ac | 430 | expand("\001j", jbuf, &jbuf[sizeof jbuf - 1], CurEnv); |
57c97d4a | 431 | MyHostName = jbuf; |
d6a28dd8 | 432 | |
179c1218 EA |
433 | /* the indices of local and program mailers */ |
434 | st = stab("local", ST_MAILER, ST_FIND); | |
435 | if (st == NULL) | |
436 | syserr("No local mailer defined"); | |
437 | else | |
438 | LocalMailer = st->s_mailer; | |
439 | st = stab("prog", ST_MAILER, ST_FIND); | |
440 | if (st == NULL) | |
441 | syserr("No prog mailer defined"); | |
442 | else | |
443 | ProgMailer = st->s_mailer; | |
444 | ||
6bbaf971 EA |
445 | /* operate in queue directory */ |
446 | if (chdir(QueueDir) < 0) | |
447 | { | |
448 | syserr("cannot chdir(%s)", QueueDir); | |
449 | exit(EX_SOFTWARE); | |
450 | } | |
451 | ||
64912e7e | 452 | /* |
55f0da62 | 453 | ** Do operation-mode-dependent initialization. |
64912e7e EA |
454 | */ |
455 | ||
55f0da62 | 456 | switch (OpMode) |
64912e7e | 457 | { |
55f0da62 EA |
458 | case MD_PRINT: |
459 | /* print the queue */ | |
74f37936 | 460 | #ifdef QUEUE |
64912e7e EA |
461 | dropenvelope(CurEnv); |
462 | printqueue(); | |
463 | exit(EX_OK); | |
74f37936 EA |
464 | #else QUEUE |
465 | usrerr("No queue to print"); | |
466 | finis(); | |
467 | #endif QUEUE | |
8acb5142 | 468 | |
55f0da62 EA |
469 | case MD_INITALIAS: |
470 | /* initialize alias database */ | |
471 | initaliases(AliasFile, TRUE); | |
f4dbf345 | 472 | exit(EX_OK); |
cdb17311 | 473 | |
55f0da62 EA |
474 | case MD_DAEMON: |
475 | /* don't open alias database -- done in srvrsmtp */ | |
476 | break; | |
477 | ||
478 | default: | |
479 | /* open the alias database */ | |
480 | initaliases(AliasFile, FALSE); | |
481 | break; | |
482 | } | |
483 | ||
9c6d4c70 | 484 | # ifdef DEBUG |
9678c96d | 485 | if (tTd(0, 15)) |
9c6d4c70 | 486 | { |
f6a0cc15 | 487 | /* print configuration table (or at least part of it) */ |
9c6d4c70 EA |
488 | printrules(); |
489 | for (i = 0; i < MAXMAILERS; i++) | |
490 | { | |
491 | register struct mailer *m = Mailer[i]; | |
1dbda134 | 492 | int j; |
9c6d4c70 EA |
493 | |
494 | if (m == NULL) | |
495 | continue; | |
97ad25b6 EA |
496 | printf("mailer %d (%s): P=%s S=%d R=%d M=%ld F=", i, m->m_name, |
497 | m->m_mailer, m->m_s_rwset, m->m_r_rwset, | |
498 | m->m_maxsize); | |
1dbda134 EA |
499 | for (j = '\0'; j <= '\177'; j++) |
500 | if (bitnset(j, m->m_flags)) | |
0e306e7f | 501 | (void) putchar(j); |
1dbda134 | 502 | printf(" E="); |
b3ef02a2 EA |
503 | xputs(m->m_eol); |
504 | printf("\n"); | |
9c6d4c70 EA |
505 | } |
506 | } | |
507 | # endif DEBUG | |
508 | ||
be2fcca9 EA |
509 | /* |
510 | ** Switch to the main envelope. | |
511 | */ | |
512 | ||
513 | CurEnv = newenvelope(&MainEnvelope); | |
e6f08ab1 | 514 | MainEnvelope.e_flags = BlankEnvelope.e_flags; |
be2fcca9 | 515 | |
cf69a203 EA |
516 | /* |
517 | ** If test mode, read addresses from stdin and process. | |
518 | */ | |
519 | ||
75f95954 | 520 | if (OpMode == MD_TEST) |
cf69a203 EA |
521 | { |
522 | char buf[MAXLINE]; | |
523 | ||
50435450 | 524 | printf("ADDRESS TEST MODE\nEnter <ruleset> <address>\n"); |
cf69a203 EA |
525 | for (;;) |
526 | { | |
527 | register char **pvp; | |
50435450 | 528 | char *q; |
50435450 | 529 | extern char *DelimChar; |
cf69a203 EA |
530 | |
531 | printf("> "); | |
0e306e7f | 532 | (void) fflush(stdout); |
cf69a203 EA |
533 | if (fgets(buf, sizeof buf, stdin) == NULL) |
534 | finis(); | |
ecfd2c8e | 535 | for (p = buf; isspace(*p); *p++) |
cf69a203 | 536 | continue; |
ecfd2c8e EA |
537 | q = p; |
538 | while (*p != '\0' && !isspace(*p)) | |
539 | p++; | |
cf69a203 EA |
540 | if (*p == '\0') |
541 | continue; | |
50435450 EA |
542 | *p = '\0'; |
543 | do | |
ecfd2c8e | 544 | { |
217a0102 EA |
545 | extern char **prescan(); |
546 | char pvpbuf[PSBUFSIZE]; | |
547 | ||
548 | pvp = prescan(++p, ',', pvpbuf); | |
50435450 | 549 | if (pvp == NULL) |
ecfd2c8e | 550 | continue; |
50435450 EA |
551 | rewrite(pvp, 3); |
552 | p = q; | |
553 | while (*p != '\0') | |
554 | { | |
555 | rewrite(pvp, atoi(p)); | |
556 | while (*p != '\0' && *p++ != ',') | |
557 | continue; | |
558 | } | |
559 | } while (*(p = DelimChar) != '\0'); | |
cf69a203 EA |
560 | } |
561 | } | |
562 | ||
e3cd595c EA |
563 | # ifdef QUEUE |
564 | /* | |
565 | ** If collecting stuff from the queue, go start doing that. | |
566 | */ | |
567 | ||
7b21425b | 568 | if (queuemode && OpMode != MD_DAEMON && QueueIntvl == 0) |
e3cd595c EA |
569 | { |
570 | runqueue(FALSE); | |
571 | finis(); | |
572 | } | |
573 | # endif QUEUE | |
574 | ||
f6a0cc15 EA |
575 | /* |
576 | ** If a daemon, wait for a request. | |
577 | ** getrequests will always return in a child. | |
25b9d645 | 578 | ** If we should also be processing the queue, start |
19147b2d EA |
579 | ** doing it in background. |
580 | ** We check for any errors that might have happened | |
581 | ** during startup. | |
f6a0cc15 EA |
582 | */ |
583 | ||
75f95954 | 584 | if (OpMode == MD_DAEMON || QueueIntvl != 0) |
25b9d645 | 585 | { |
9678c96d | 586 | if (!tTd(0, 1)) |
58b27aa4 | 587 | { |
fcdf8200 | 588 | /* put us in background */ |
58b27aa4 EA |
589 | i = fork(); |
590 | if (i < 0) | |
591 | syserr("daemon: cannot fork"); | |
592 | if (i != 0) | |
593 | exit(0); | |
fcdf8200 EA |
594 | |
595 | /* get our pid right */ | |
d9162460 | 596 | MotherPid = getpid(); |
fcdf8200 EA |
597 | |
598 | /* disconnect from our controlling tty */ | |
d188728a | 599 | disconnect(TRUE); |
58b27aa4 | 600 | } |
7338e3d4 | 601 | |
25b9d645 EA |
602 | # ifdef QUEUE |
603 | if (queuemode) | |
f309127e | 604 | { |
25b9d645 | 605 | runqueue(TRUE); |
75f95954 | 606 | if (OpMode != MD_DAEMON) |
f309127e EA |
607 | for (;;) |
608 | pause(); | |
609 | } | |
25b9d645 | 610 | # endif QUEUE |
7338e3d4 EA |
611 | dropenvelope(CurEnv); |
612 | ||
613 | #ifdef DAEMON | |
f6a0cc15 | 614 | getrequests(); |
2a16bae3 EA |
615 | |
616 | /* at this point we are in a child: reset state */ | |
75f95954 | 617 | OpMode = MD_SMTP; |
7338e3d4 | 618 | (void) newenvelope(CurEnv); |
912acb74 | 619 | openxscript(CurEnv); |
14a39063 | 620 | #endif DAEMON |
7338e3d4 | 621 | } |
88039044 EA |
622 | |
623 | # ifdef SMTP | |
624 | /* | |
625 | ** If running SMTP protocol, start collecting and executing | |
626 | ** commands. This will never return. | |
627 | */ | |
628 | ||
75f95954 | 629 | if (OpMode == MD_SMTP) |
88039044 EA |
630 | smtp(); |
631 | # endif SMTP | |
632 | ||
f6a0cc15 | 633 | /* |
e6f08ab1 | 634 | ** Do basic system initialization and set the sender |
f6a0cc15 EA |
635 | */ |
636 | ||
e6f08ab1 | 637 | initsys(); |
cbdb7357 | 638 | setsender(from); |
a9e0e597 | 639 | |
3110074f | 640 | if (OpMode != MD_ARPAFTP && *av == NULL && !GrabTo) |
e863b1fa | 641 | { |
2e3062fe EA |
642 | usrerr("Recipient names must be specified"); |
643 | ||
644 | /* collect body for UUCP return */ | |
645 | if (OpMode != MD_VERIFY) | |
646 | collect(FALSE); | |
e863b1fa EA |
647 | finis(); |
648 | } | |
75f95954 EA |
649 | if (OpMode == MD_VERIFY) |
650 | SendMode = SM_VERIFY; | |
b3cbe40f | 651 | |
b3cbe40f | 652 | /* |
d6b27179 | 653 | ** Scan argv and deliver the message to everyone. |
b3cbe40f EA |
654 | */ |
655 | ||
acae5a9d | 656 | sendtoargv(av); |
b3cbe40f | 657 | |
72e9b3cc | 658 | /* if we have had errors sofar, arrange a meaningful exit stat */ |
d916f0ca | 659 | if (Errors > 0 && ExitStat == EX_OK) |
a4b004a6 | 660 | ExitStat = EX_USAGE; |
a4b004a6 | 661 | |
dc39c568 EA |
662 | /* |
663 | ** Read the input mail. | |
664 | */ | |
665 | ||
2654b031 | 666 | CurEnv->e_to = NULL; |
75f95954 | 667 | if (OpMode != MD_VERIFY || GrabTo) |
49086753 | 668 | collect(FALSE); |
d829793b | 669 | errno = 0; |
35cc3fad | 670 | |
4e1f4d4b | 671 | /* collect statistics */ |
7338e3d4 EA |
672 | if (OpMode != MD_VERIFY) |
673 | markstats(CurEnv, (ADDRESS *) NULL); | |
b3cbe40f | 674 | |
d6b27179 | 675 | # ifdef DEBUG |
9678c96d | 676 | if (tTd(1, 1)) |
2654b031 | 677 | printf("From person = \"%s\"\n", CurEnv->e_from.q_paddr); |
d6b27179 EA |
678 | # endif DEBUG |
679 | ||
b3cbe40f EA |
680 | /* |
681 | ** Actually send everything. | |
d6b27179 | 682 | ** If verifying, just ack. |
b3cbe40f EA |
683 | */ |
684 | ||
7338e3d4 EA |
685 | CurEnv->e_from.q_flags |= QDONTSEND; |
686 | CurEnv->e_to = NULL; | |
f7e74083 | 687 | sendall(CurEnv, SM_DEFAULT); |
b3cbe40f EA |
688 | |
689 | /* | |
690 | ** All done. | |
691 | */ | |
692 | ||
693 | finis(); | |
694 | } | |
695 | \f/* | |
696 | ** FINIS -- Clean up and exit. | |
697 | ** | |
b3cbe40f EA |
698 | ** Parameters: |
699 | ** none | |
700 | ** | |
701 | ** Returns: | |
702 | ** never | |
703 | ** | |
704 | ** Side Effects: | |
96faada8 | 705 | ** exits sendmail |
b3cbe40f EA |
706 | */ |
707 | ||
708 | finis() | |
709 | { | |
aba51985 | 710 | # ifdef DEBUG |
9678c96d | 711 | if (tTd(2, 1)) |
e6f08ab1 | 712 | printf("\n====finis: stat %d e_flags %o\n", ExitStat, CurEnv->e_flags); |
aba51985 EA |
713 | # endif DEBUG |
714 | ||
7338e3d4 | 715 | /* clean up temp files */ |
912acb74 | 716 | CurEnv->e_to = NULL; |
e6f08ab1 | 717 | dropenvelope(CurEnv); |
b3cbe40f | 718 | |
7338e3d4 EA |
719 | /* post statistics */ |
720 | poststats(StatFile); | |
68f0b54c | 721 | |
7338e3d4 | 722 | /* and exit */ |
36a4e219 EA |
723 | # ifdef LOG |
724 | if (LogLevel > 11) | |
725 | syslog(LOG_DEBUG, "finis, pid=%d", getpid()); | |
726 | # endif LOG | |
c8ec8736 EA |
727 | if (ExitStat == EX_TEMPFAIL) |
728 | ExitStat = EX_OK; | |
b3cbe40f EA |
729 | exit(ExitStat); |
730 | } | |
731 | \f/* | |
6e2f38be EA |
732 | ** INTSIG -- clean up on interrupt |
733 | ** | |
7338e3d4 EA |
734 | ** This just arranges to exit. It pessimises in that it |
735 | ** may resend a message. | |
6e2f38be EA |
736 | ** |
737 | ** Parameters: | |
738 | ** none. | |
739 | ** | |
740 | ** Returns: | |
741 | ** none. | |
742 | ** | |
743 | ** Side Effects: | |
7338e3d4 | 744 | ** Unlocks the current job. |
6e2f38be EA |
745 | */ |
746 | ||
747 | intsig() | |
748 | { | |
7338e3d4 EA |
749 | FileName = NULL; |
750 | unlockqueue(CurEnv); | |
751 | exit(EX_OK); | |
6e2f38be EA |
752 | } |
753 | \f/* | |
721fad23 EA |
754 | ** INITMACROS -- initialize the macro system |
755 | ** | |
756 | ** This just involves defining some macros that are actually | |
757 | ** used internally as metasymbols to be themselves. | |
758 | ** | |
759 | ** Parameters: | |
760 | ** none. | |
761 | ** | |
762 | ** Returns: | |
763 | ** none. | |
764 | ** | |
765 | ** Side Effects: | |
766 | ** initializes several macros to be themselves. | |
767 | */ | |
768 | ||
9dbc8d99 | 769 | struct metamac |
721fad23 | 770 | { |
9dbc8d99 EA |
771 | char metaname; |
772 | char metaval; | |
773 | }; | |
721fad23 | 774 | |
9dbc8d99 EA |
775 | struct metamac MetaMacros[] = |
776 | { | |
eca244ca | 777 | /* LHS pattern matching characters */ |
2018e82d | 778 | '*', MATCHZANY, '+', MATCHANY, '-', MATCHONE, '=', MATCHCLASS, |
9f39d7cd | 779 | '~', MATCHNCLASS, |
721fad23 EA |
780 | |
781 | /* these are RHS metasymbols */ | |
2018e82d | 782 | '#', CANONNET, '@', CANONHOST, ':', CANONUSER, '>', CALLSUBR, |
41173b8f | 783 | '{', MATCHLOOKUP, '}', MATCHELOOKUP, |
721fad23 | 784 | |
eca244ca | 785 | /* the conditional operations */ |
2018e82d | 786 | '?', CONDIF, '|', CONDELSE, '.', CONDFI, |
9dbc8d99 | 787 | |
eca244ca | 788 | /* and finally the hostname lookup characters */ |
217a0102 | 789 | '[', HOSTBEGIN, ']', HOSTEND, |
eca244ca | 790 | |
9dbc8d99 | 791 | '\0' |
721fad23 EA |
792 | }; |
793 | ||
794 | initmacros() | |
795 | { | |
9dbc8d99 EA |
796 | register struct metamac *m; |
797 | char buf[5]; | |
798 | register int c; | |
721fad23 | 799 | |
9dbc8d99 EA |
800 | for (m = MetaMacros; m->metaname != '\0'; m++) |
801 | { | |
802 | buf[0] = m->metaval; | |
803 | buf[1] = '\0'; | |
7338e3d4 | 804 | define(m->metaname, newstr(buf), CurEnv); |
9dbc8d99 EA |
805 | } |
806 | buf[0] = MATCHREPL; | |
807 | buf[2] = '\0'; | |
808 | for (c = '0'; c <= '9'; c++) | |
809 | { | |
810 | buf[1] = c; | |
7338e3d4 | 811 | define(c, newstr(buf), CurEnv); |
9dbc8d99 | 812 | } |
721fad23 | 813 | } |
dd1fe05b | 814 | \f/* |
acae5a9d EA |
815 | ** FREEZE -- freeze BSS & allocated memory |
816 | ** | |
817 | ** This will be used to efficiently load the configuration file. | |
818 | ** | |
819 | ** Parameters: | |
8fe4fb9b | 820 | ** freezefile -- the name of the file to freeze to. |
acae5a9d EA |
821 | ** |
822 | ** Returns: | |
823 | ** none. | |
824 | ** | |
825 | ** Side Effects: | |
8fe4fb9b | 826 | ** Writes BSS and malloc'ed memory to freezefile |
acae5a9d EA |
827 | */ |
828 | ||
7338e3d4 | 829 | union frz |
acae5a9d | 830 | { |
7338e3d4 EA |
831 | char frzpad[BUFSIZ]; /* insure we are on a BUFSIZ boundary */ |
832 | struct | |
833 | { | |
834 | time_t frzstamp; /* timestamp on this freeze */ | |
835 | char *frzbrk; /* the current break */ | |
2e3062fe EA |
836 | char *frzedata; /* address of edata */ |
837 | char *frzend; /* address of end */ | |
7338e3d4 EA |
838 | char frzver[252]; /* sendmail version */ |
839 | } frzinfo; | |
acae5a9d EA |
840 | }; |
841 | ||
8fe4fb9b EA |
842 | freeze(freezefile) |
843 | char *freezefile; | |
acae5a9d EA |
844 | { |
845 | int f; | |
7338e3d4 | 846 | union frz fhdr; |
2e3062fe | 847 | extern char edata, end; |
acae5a9d | 848 | extern char *sbrk(); |
912acb74 | 849 | extern char Version[]; |
acae5a9d | 850 | |
8fe4fb9b | 851 | if (freezefile == NULL) |
acae5a9d EA |
852 | return; |
853 | ||
854 | /* try to open the freeze file */ | |
8fe4fb9b | 855 | f = creat(freezefile, FileMode); |
acae5a9d EA |
856 | if (f < 0) |
857 | { | |
858 | syserr("Cannot freeze"); | |
859 | errno = 0; | |
860 | return; | |
861 | } | |
862 | ||
863 | /* build the freeze header */ | |
7338e3d4 EA |
864 | fhdr.frzinfo.frzstamp = curtime(); |
865 | fhdr.frzinfo.frzbrk = sbrk(0); | |
2e3062fe EA |
866 | fhdr.frzinfo.frzedata = &edata; |
867 | fhdr.frzinfo.frzend = &end; | |
0e306e7f | 868 | (void) strcpy(fhdr.frzinfo.frzver, Version); |
acae5a9d EA |
869 | |
870 | /* write out the freeze header */ | |
611b763d | 871 | if (write(f, (char *) &fhdr, sizeof fhdr) != sizeof fhdr || |
34fe0a9b EA |
872 | write(f, (char *) &edata, (int) (fhdr.frzinfo.frzbrk - &edata)) != |
873 | (int) (fhdr.frzinfo.frzbrk - &edata)) | |
7338e3d4 | 874 | { |
acae5a9d | 875 | syserr("Cannot freeze"); |
7338e3d4 | 876 | } |
acae5a9d EA |
877 | |
878 | /* fine, clean up */ | |
879 | (void) close(f); | |
880 | } | |
881 | \f/* | |
882 | ** THAW -- read in the frozen configuration file. | |
883 | ** | |
884 | ** Parameters: | |
8fe4fb9b | 885 | ** freezefile -- the name of the file to thaw from. |
acae5a9d EA |
886 | ** |
887 | ** Returns: | |
888 | ** TRUE if it successfully read the freeze file. | |
889 | ** FALSE otherwise. | |
890 | ** | |
891 | ** Side Effects: | |
8fe4fb9b | 892 | ** reads freezefile in to BSS area. |
acae5a9d EA |
893 | */ |
894 | ||
8fe4fb9b EA |
895 | thaw(freezefile) |
896 | char *freezefile; | |
acae5a9d EA |
897 | { |
898 | int f; | |
7338e3d4 | 899 | union frz fhdr; |
acae5a9d | 900 | extern char edata; |
912acb74 | 901 | extern char Version[]; |
17a67c62 | 902 | extern caddr_t brk(); |
acae5a9d | 903 | |
8fe4fb9b | 904 | if (freezefile == NULL) |
acae5a9d EA |
905 | return (FALSE); |
906 | ||
907 | /* open the freeze file */ | |
8fe4fb9b | 908 | f = open(freezefile, 0); |
acae5a9d EA |
909 | if (f < 0) |
910 | { | |
911 | errno = 0; | |
912 | return (FALSE); | |
913 | } | |
914 | ||
915 | /* read in the header */ | |
611b763d | 916 | if (read(f, (char *) &fhdr, sizeof fhdr) < sizeof fhdr || |
2e3062fe EA |
917 | fhdr.frzinfo.frzedata != &edata || |
918 | fhdr.frzinfo.frzend != &end || | |
7338e3d4 | 919 | strcmp(fhdr.frzinfo.frzver, Version) != 0) |
acae5a9d EA |
920 | { |
921 | (void) close(f); | |
922 | return (FALSE); | |
923 | } | |
924 | ||
925 | /* arrange to have enough space */ | |
17a67c62 | 926 | if (brk(fhdr.frzinfo.frzbrk) == (caddr_t) -1) |
acae5a9d | 927 | { |
7338e3d4 | 928 | syserr("Cannot break to %x", fhdr.frzinfo.frzbrk); |
acae5a9d EA |
929 | (void) close(f); |
930 | return (FALSE); | |
931 | } | |
932 | ||
933 | /* now read in the freeze file */ | |
34fe0a9b EA |
934 | if (read(f, (char *) &edata, (int) (fhdr.frzinfo.frzbrk - &edata)) != |
935 | (int) (fhdr.frzinfo.frzbrk - &edata)) | |
acae5a9d EA |
936 | { |
937 | /* oops! we have trashed memory..... */ | |
0e306e7f | 938 | (void) write(2, "Cannot read freeze file\n", 24); |
7338e3d4 | 939 | _exit(EX_SOFTWARE); |
acae5a9d EA |
940 | } |
941 | ||
942 | (void) close(f); | |
943 | return (TRUE); | |
944 | } | |
813d8709 EA |
945 | \f/* |
946 | ** DISCONNECT -- remove our connection with any foreground process | |
947 | ** | |
948 | ** Parameters: | |
d188728a EA |
949 | ** fulldrop -- if set, we should also drop the controlling |
950 | ** TTY if possible -- this should only be done when | |
951 | ** setting up the daemon since otherwise UUCP can | |
952 | ** leave us trying to open a dialin, and we will | |
953 | ** wait for the carrier. | |
813d8709 EA |
954 | ** |
955 | ** Returns: | |
956 | ** none | |
957 | ** | |
958 | ** Side Effects: | |
959 | ** Trys to insure that we are immune to vagaries of | |
960 | ** the controlling tty. | |
961 | */ | |
962 | ||
d188728a EA |
963 | disconnect(fulldrop) |
964 | bool fulldrop; | |
813d8709 EA |
965 | { |
966 | int fd; | |
967 | ||
e6f08ab1 EA |
968 | #ifdef DEBUG |
969 | if (tTd(52, 1)) | |
b9accadd EA |
970 | printf("disconnect: In %d Out %d\n", fileno(InChannel), |
971 | fileno(OutChannel)); | |
e6f08ab1 | 972 | if (tTd(52, 5)) |
813d8709 | 973 | { |
e6f08ab1 EA |
974 | printf("don't\n"); |
975 | return; | |
813d8709 | 976 | } |
e6f08ab1 | 977 | #endif DEBUG |
813d8709 EA |
978 | |
979 | /* be sure we don't get nasty signals */ | |
0e306e7f EA |
980 | (void) signal(SIGHUP, SIG_IGN); |
981 | (void) signal(SIGINT, SIG_IGN); | |
982 | (void) signal(SIGQUIT, SIG_IGN); | |
813d8709 EA |
983 | |
984 | /* we can't communicate with our caller, so.... */ | |
7338e3d4 EA |
985 | HoldErrs = TRUE; |
986 | ErrorMode = EM_MAIL; | |
813d8709 EA |
987 | Verbose = FALSE; |
988 | ||
989 | /* all input from /dev/null */ | |
813d8709 | 990 | if (InChannel != stdin) |
b9accadd EA |
991 | { |
992 | (void) fclose(InChannel); | |
993 | InChannel = stdin; | |
994 | } | |
995 | (void) freopen("/dev/null", "r", stdin); | |
813d8709 EA |
996 | |
997 | /* output to the transcript */ | |
b9accadd | 998 | if (OutChannel != stdout) |
813d8709 | 999 | { |
b9accadd EA |
1000 | (void) fclose(OutChannel); |
1001 | OutChannel = stdout; | |
813d8709 | 1002 | } |
912acb74 EA |
1003 | if (CurEnv->e_xfp == NULL) |
1004 | CurEnv->e_xfp = fopen("/dev/null", "w"); | |
b9accadd EA |
1005 | (void) fflush(stdout); |
1006 | (void) close(1); | |
1007 | (void) close(2); | |
912acb74 | 1008 | while ((fd = dup(fileno(CurEnv->e_xfp))) < 2 && fd > 0) |
b9accadd | 1009 | continue; |
813d8709 | 1010 | |
e6f08ab1 EA |
1011 | #ifdef TIOCNOTTY |
1012 | /* drop our controlling TTY completely if possible */ | |
d188728a | 1013 | if (fulldrop) |
e6f08ab1 | 1014 | { |
d188728a EA |
1015 | fd = open("/dev/tty", 2); |
1016 | if (fd >= 0) | |
1017 | { | |
17a67c62 | 1018 | (void) ioctl(fd, (int) TIOCNOTTY, (char *) 0); |
d188728a EA |
1019 | (void) close(fd); |
1020 | } | |
17a67c62 | 1021 | (void) setpgrp(0, 0); |
70faa7c8 | 1022 | errno = 0; |
e6f08ab1 EA |
1023 | } |
1024 | #endif TIOCNOTTY | |
1025 | ||
813d8709 EA |
1026 | # ifdef LOG |
1027 | if (LogLevel > 11) | |
1028 | syslog(LOG_DEBUG, "in background, pid=%d", getpid()); | |
1029 | # endif LOG | |
1030 | ||
1031 | errno = 0; | |
1032 | } |