Commit | Line | Data |
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aeb2545d | 1 | /* |
dc45ba8c | 2 | * Copyright (c) 1983 Eric P. Allman |
bee79b64 KB |
3 | * Copyright (c) 1988 Regents of the University of California. |
4 | * All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms are permitted | |
dc45ba8c KB |
7 | * provided that the above copyright notice and this paragraph are |
8 | * duplicated in all such forms and that any documentation, | |
9 | * advertising materials, and other materials related to such | |
10 | * distribution and use acknowledge that the software was developed | |
11 | * by the University of California, Berkeley. The name of the | |
12 | * University may not be used to endorse or promote products derived | |
13 | * from this software without specific prior written permission. | |
14 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
15 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
16 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
bee79b64 | 17 | */ |
aeb2545d DF |
18 | |
19 | #ifndef lint | |
20 | char copyright[] = | |
bee79b64 | 21 | "@(#) Copyright (c) 1988 Regents of the University of California.\n\ |
aeb2545d | 22 | All rights reserved.\n"; |
bee79b64 | 23 | #endif /* not lint */ |
aeb2545d DF |
24 | |
25 | #ifndef lint | |
dc45ba8c | 26 | static char sccsid[] = "@(#)main.c 5.18 (Berkeley) %G%"; |
bee79b64 | 27 | #endif /* not lint */ |
aeb2545d | 28 | |
137c2d1f KB |
29 | #define _DEFINE |
30 | ||
31 | #include <signal.h> | |
32 | #include <sgtty.h> | |
33 | #include "sendmail.h" | |
34 | #include <arpa/nameser.h> | |
35 | #include <resolv.h> | |
b3cbe40f | 36 | |
17a67c62 | 37 | # ifdef lint |
2e3062fe | 38 | char edata, end; |
17a67c62 EA |
39 | # endif lint |
40 | ||
b3cbe40f | 41 | /* |
96faada8 | 42 | ** SENDMAIL -- Post mail to a set of destinations. |
b3cbe40f EA |
43 | ** |
44 | ** This is the basic mail router. All user mail programs should | |
96faada8 | 45 | ** call this routine to actually deliver mail. Sendmail in |
b3cbe40f EA |
46 | ** turn calls a bunch of mail servers that do the real work of |
47 | ** delivering the mail. | |
48 | ** | |
3199e4f3 EA |
49 | ** Sendmail is driven by tables read in from /usr/lib/sendmail.cf |
50 | ** (read by readcf.c). Some more static configuration info, | |
51 | ** including some code that you may want to tailor for your | |
52 | ** installation, is in conf.c. You may also want to touch | |
53 | ** daemon.c (if you have some other IPC mechanism), acct.c | |
54 | ** (to change your accounting), names.c (to adjust the name | |
55 | ** server mechanism). | |
b3cbe40f EA |
56 | ** |
57 | ** Usage: | |
7338e3d4 | 58 | ** /usr/lib/sendmail [flags] addr ... |
b3cbe40f | 59 | ** |
7338e3d4 | 60 | ** See the associated documentation for details. |
b3cbe40f | 61 | ** |
b3cbe40f | 62 | ** Author: |
7338e3d4 EA |
63 | ** Eric Allman, UCB/INGRES (until 10/81) |
64 | ** Britton-Lee, Inc., purveyors of fine | |
65 | ** database computers (from 11/81) | |
66 | ** The support of the INGRES Project and Britton-Lee is | |
67 | ** gratefully acknowledged. Britton-Lee in | |
68 | ** particular had absolutely nothing to gain from | |
69 | ** my involvement in this project. | |
b3cbe40f EA |
70 | */ |
71 | ||
72 | ||
83f674d8 | 73 | int NextMailer; /* "free" index into Mailer struct */ |
912acb74 | 74 | char *FullName; /* sender's full name */ |
be2fcca9 | 75 | ENVELOPE BlankEnvelope; /* a "blank" envelope */ |
2654b031 | 76 | ENVELOPE MainEnvelope; /* the envelope around the basic letter */ |
2e3062fe EA |
77 | ADDRESS NullAddress = /* a null address */ |
78 | { "", "", "" }; | |
79 | ||
80 | /* | |
81 | ** Pointers for setproctitle. | |
82 | ** This allows "ps" listings to give more useful information. | |
83 | ** These must be kept out of BSS for frozen configuration files | |
84 | ** to work. | |
85 | */ | |
86 | ||
87 | # ifdef SETPROCTITLE | |
88 | char **Argv = NULL; /* pointer to argument vector */ | |
89 | char *LastArgv = NULL; /* end of argv */ | |
90 | # endif SETPROCTITLE | |
b3cbe40f | 91 | |
4aebfe5d EA |
92 | #ifdef DAEMON |
93 | #ifndef SMTP | |
94 | ERROR %%%% Cannot have daemon mode without SMTP %%%% ERROR | |
95 | #endif SMTP | |
96 | #endif DAEMON | |
97 | ||
e36705df | 98 | main(argc, argv, envp) |
b3cbe40f EA |
99 | int argc; |
100 | char **argv; | |
e36705df | 101 | char **envp; |
b3cbe40f EA |
102 | { |
103 | register char *p; | |
acae5a9d | 104 | char **av; |
17df0fcb | 105 | char *locname; |
b3cbe40f | 106 | extern int finis(); |
b3cbe40f | 107 | extern char Version[]; |
b3cbe40f | 108 | char *from; |
b3cbe40f | 109 | typedef int (*fnptr)(); |
be2fcca9 | 110 | STAB *st; |
9e3c0a28 | 111 | register int i; |
4388720d | 112 | bool readconfig = TRUE; |
aba51985 | 113 | bool queuemode = FALSE; /* process queue requests */ |
43e0af62 | 114 | bool nothaw; |
be2fcca9 | 115 | static bool reenter = FALSE; |
57c97d4a | 116 | char jbuf[30]; /* holds MyHostName */ |
f6a0cc15 | 117 | extern bool safefile(); |
ed45aae1 | 118 | extern time_t convtime(); |
dd1fe05b | 119 | extern putheader(), putbody(); |
be2fcca9 | 120 | extern ENVELOPE *newenvelope(); |
6e2f38be | 121 | extern intsig(); |
1dbda134 | 122 | extern char **myhostname(); |
22e6d6b8 | 123 | extern char *arpadate(); |
e36705df | 124 | extern char **environ; |
b72377c6 | 125 | |
22659072 EA |
126 | /* |
127 | ** Check to see if we reentered. | |
128 | ** This would normally happen if e_putheader or e_putbody | |
129 | ** were NULL when invoked. | |
130 | */ | |
131 | ||
b72377c6 EA |
132 | if (reenter) |
133 | { | |
134 | syserr("main: reentered!"); | |
135 | abort(); | |
136 | } | |
137 | reenter = TRUE; | |
abae7b2d | 138 | extern ADDRESS *recipient(); |
17df0fcb | 139 | bool canrename; |
b3cbe40f | 140 | |
60c0b7b2 KB |
141 | /* Enforce use of local time */ |
142 | unsetenv("TZ"); | |
143 | ||
d15bd559 EA |
144 | /* |
145 | ** Be sure we have enough file descriptors. | |
59b65d0f | 146 | ** But also be sure that 0, 1, & 2 are open. |
d15bd559 EA |
147 | */ |
148 | ||
59b65d0f EA |
149 | i = open("/dev/null", 2); |
150 | while (i >= 0 && i < 2) | |
151 | i = dup(i); | |
560a80d9 | 152 | for (i = 3; i < 50; i++) |
d15bd559 EA |
153 | (void) close(i); |
154 | errno = 0; | |
155 | ||
8ff78b51 EA |
156 | /* |
157 | ** Set default values for variables. | |
158 | ** These cannot be in initialized data space. | |
159 | */ | |
160 | ||
161 | setdefaults(); | |
162 | ||
bb09c502 EA |
163 | /* set up the blank envelope */ |
164 | BlankEnvelope.e_puthdr = putheader; | |
165 | BlankEnvelope.e_putbody = putbody; | |
166 | BlankEnvelope.e_xfp = NULL; | |
2e3062fe | 167 | STRUCTCOPY(NullAddress, BlankEnvelope.e_from); |
bd575ea9 EA |
168 | STRUCTCOPY(BlankEnvelope, MainEnvelope); |
169 | CurEnv = &MainEnvelope; | |
bb09c502 | 170 | |
22659072 EA |
171 | /* |
172 | ** Do a quick prescan of the argument list. | |
173 | ** We do this to find out if we can potentially thaw the | |
174 | ** configuration file. If not, we do the thaw now so that | |
175 | ** the argument processing applies to this run rather than | |
176 | ** to the run that froze the configuration. | |
177 | */ | |
178 | ||
d6b27179 | 179 | argv[argc] = NULL; |
22659072 | 180 | av = argv; |
43e0af62 | 181 | nothaw = FALSE; |
560a80d9 | 182 | while ((p = *++av) != NULL) |
22659072 | 183 | { |
560a80d9 EA |
184 | if (strncmp(p, "-C", 2) == 0) |
185 | { | |
186 | ConfFile = &p[2]; | |
187 | if (ConfFile[0] == '\0') | |
188 | ConfFile = "sendmail.cf"; | |
0e306e7f EA |
189 | (void) setgid(getrgid()); |
190 | (void) setuid(getruid()); | |
43e0af62 | 191 | nothaw = TRUE; |
560a80d9 EA |
192 | } |
193 | else if (strncmp(p, "-bz", 3) == 0) | |
43e0af62 EA |
194 | nothaw = TRUE; |
195 | # ifdef DEBUG | |
196 | else if (strncmp(p, "-d", 2) == 0) | |
197 | { | |
198 | tTsetup(tTdvect, sizeof tTdvect, "0-99.1"); | |
199 | tTflag(&p[2]); | |
200 | setbuf(stdout, (char *) NULL); | |
201 | printf("Version %s\n", Version); | |
202 | } | |
203 | # endif DEBUG | |
22659072 | 204 | } |
43e0af62 | 205 | if (!nothaw) |
22659072 EA |
206 | readconfig = !thaw(FreezeFile); |
207 | ||
e36705df | 208 | /* reset the environment after the thaw */ |
42bbf376 EA |
209 | for (i = 0; i < MAXUSERENVIRON && envp[i] != NULL; i++) |
210 | UserEnviron[i] = newstr(envp[i]); | |
211 | UserEnviron[i] = NULL; | |
212 | environ = UserEnviron; | |
213 | ||
214 | # ifdef SETPROCTITLE | |
215 | /* | |
216 | ** Save start and extent of argv for setproctitle. | |
217 | */ | |
218 | ||
219 | Argv = argv; | |
577bce94 EA |
220 | if (i > 0) |
221 | LastArgv = envp[i - 1] + strlen(envp[i - 1]); | |
222 | else | |
223 | LastArgv = argv[argc - 1] + strlen(argv[argc - 1]); | |
42bbf376 | 224 | # endif SETPROCTITLE |
e36705df | 225 | |
22659072 EA |
226 | /* |
227 | ** Now do basic initialization | |
228 | */ | |
229 | ||
cbdb7357 EA |
230 | InChannel = stdin; |
231 | OutChannel = stdout; | |
b3cbe40f | 232 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) |
6e2f38be | 233 | (void) signal(SIGINT, intsig); |
eb211e2c | 234 | if (signal(SIGHUP, SIG_IGN) != SIG_IGN) |
6e2f38be EA |
235 | (void) signal(SIGHUP, intsig); |
236 | (void) signal(SIGTERM, intsig); | |
ed7382d3 | 237 | (void) signal(SIGPIPE, SIG_IGN); |
a0554f81 | 238 | OldUmask = umask(0); |
75f95954 | 239 | OpMode = MD_DELIVER; |
e673aad7 | 240 | MotherPid = getpid(); |
561c7c50 | 241 | FullName = getenv("NAME"); |
dd1fe05b | 242 | |
b3cbe40f | 243 | # ifdef LOG |
b3cbe40f | 244 | # endif LOG |
b3cbe40f EA |
245 | errno = 0; |
246 | from = NULL; | |
378e8da7 | 247 | |
4388720d | 248 | if (readconfig) |
1dbda134 | 249 | { |
4388720d EA |
250 | /* initialize some macros, etc. */ |
251 | initmacros(); | |
252 | ||
253 | /* hostname */ | |
254 | av = myhostname(jbuf, sizeof jbuf); | |
255 | if (jbuf[0] != '\0') | |
256 | { | |
43e0af62 EA |
257 | #ifdef DEBUG |
258 | if (tTd(0, 4)) | |
259 | printf("canonical name: %s\n", jbuf); | |
260 | #endif DEBUG | |
4388720d EA |
261 | p = newstr(jbuf); |
262 | define('w', p, CurEnv); | |
263 | setclass('w', p); | |
264 | } | |
265 | while (av != NULL && *av != NULL) | |
43e0af62 EA |
266 | { |
267 | #ifdef DEBUG | |
268 | if (tTd(0, 4)) | |
269 | printf("\ta.k.a.: %s\n", *av); | |
270 | #endif DEBUG | |
4388720d | 271 | setclass('w', *av++); |
43e0af62 | 272 | } |
4388720d EA |
273 | |
274 | /* version */ | |
275 | define('v', Version, CurEnv); | |
1dbda134 | 276 | } |
378e8da7 EA |
277 | |
278 | /* current time */ | |
22e6d6b8 | 279 | define('b', arpadate((char *) NULL), CurEnv); |
378e8da7 | 280 | |
a691a4a6 | 281 | /* |
c1e24818 | 282 | ** Crack argv. |
a691a4a6 EA |
283 | */ |
284 | ||
acae5a9d | 285 | av = argv; |
26a3626c EA |
286 | p = rindex(*av, '/'); |
287 | if (p++ == NULL) | |
288 | p = *av; | |
289 | if (strcmp(p, "newaliases") == 0) | |
75f95954 | 290 | OpMode = MD_INITALIAS; |
26a3626c | 291 | else if (strcmp(p, "mailq") == 0) |
75f95954 | 292 | OpMode = MD_PRINT; |
34fe0a9b EA |
293 | else if (strcmp(p, "smtpd") == 0) |
294 | OpMode = MD_DAEMON; | |
3110074f | 295 | while ((p = *++av) != NULL && p[0] == '-') |
a691a4a6 | 296 | { |
c1e24818 | 297 | switch (p[1]) |
a691a4a6 | 298 | { |
75f95954 EA |
299 | case 'b': /* operations mode */ |
300 | switch (p[2]) | |
c1e24818 | 301 | { |
75f95954 EA |
302 | case MD_DAEMON: |
303 | # ifndef DAEMON | |
304 | syserr("Daemon mode not implemented"); | |
305 | break; | |
306 | # endif DAEMON | |
307 | case MD_SMTP: | |
308 | # ifndef SMTP | |
c1e24818 | 309 | syserr("I don't speak SMTP"); |
75f95954 | 310 | break; |
c1e24818 | 311 | # endif SMTP |
75f95954 EA |
312 | case MD_ARPAFTP: |
313 | case MD_DELIVER: | |
314 | case MD_VERIFY: | |
315 | case MD_TEST: | |
316 | case MD_INITALIAS: | |
317 | case MD_PRINT: | |
318 | case MD_FREEZE: | |
319 | OpMode = p[2]; | |
320 | break; | |
321 | ||
322 | default: | |
323 | syserr("Invalid operation mode %c", p[2]); | |
324 | break; | |
c1e24818 EA |
325 | } |
326 | break; | |
327 | ||
560a80d9 | 328 | case 'C': /* select configuration file (already done) */ |
c1e24818 | 329 | break; |
a691a4a6 | 330 | |
137c2d1f | 331 | #ifdef DEBUG |
43e0af62 | 332 | case 'd': /* debugging -- redo in case frozen */ |
c1e24818 EA |
333 | tTsetup(tTdvect, sizeof tTdvect, "0-99.1"); |
334 | tTflag(&p[2]); | |
335 | setbuf(stdout, (char *) NULL); | |
137c2d1f | 336 | _res.options |= RES_DEBUG; |
c1e24818 | 337 | break; |
137c2d1f | 338 | #endif |
b3cbe40f | 339 | |
b3cbe40f | 340 | case 'f': /* from address */ |
c1e24818 | 341 | case 'r': /* obsolete -f flag */ |
b3cbe40f | 342 | p += 2; |
3110074f | 343 | if (*p == '\0' && ((p = *++av) == NULL || *p == '-')) |
b3cbe40f | 344 | { |
acae5a9d | 345 | p = *++av; |
3110074f | 346 | if (p == NULL || *p == '-') |
b3cbe40f EA |
347 | { |
348 | syserr("No \"from\" person"); | |
acae5a9d | 349 | av--; |
b3cbe40f EA |
350 | break; |
351 | } | |
352 | } | |
22659072 | 353 | if (from != NULL) |
b3cbe40f EA |
354 | { |
355 | syserr("More than one \"from\" person"); | |
356 | break; | |
357 | } | |
2e3062fe | 358 | from = newstr(p); |
b3cbe40f EA |
359 | break; |
360 | ||
6da7b890 | 361 | case 'F': /* set full name */ |
74c5fe7c | 362 | p += 2; |
3110074f | 363 | if (*p == '\0' && ((p = *++av) == NULL || *p == '-')) |
74c5fe7c | 364 | { |
3110074f EA |
365 | syserr("Bad -F flag"); |
366 | av--; | |
367 | break; | |
74c5fe7c | 368 | } |
2e3062fe | 369 | FullName = newstr(p); |
6da7b890 EA |
370 | break; |
371 | ||
b3cbe40f EA |
372 | case 'h': /* hop count */ |
373 | p += 2; | |
3110074f | 374 | if (*p == '\0' && ((p = *++av) == NULL || !isdigit(*p))) |
b3cbe40f | 375 | { |
3110074f EA |
376 | syserr("Bad hop count (%s)", p); |
377 | av--; | |
378 | break; | |
b3cbe40f | 379 | } |
7338e3d4 | 380 | CurEnv->e_hopcount = atoi(p); |
b3cbe40f | 381 | break; |
b3cbe40f | 382 | |
c1e24818 EA |
383 | case 'n': /* don't alias */ |
384 | NoAlias = TRUE; | |
d59b067a EA |
385 | break; |
386 | ||
c1e24818 EA |
387 | case 'o': /* set option */ |
388 | setoption(p[2], &p[3], FALSE, TRUE); | |
14a39063 | 389 | break; |
cbdb7357 | 390 | |
ed45aae1 | 391 | case 'q': /* run queue files at intervals */ |
884a20cb | 392 | # ifdef QUEUE |
aba51985 | 393 | queuemode = TRUE; |
25b9d645 | 394 | QueueIntvl = convtime(&p[2]); |
884a20cb EA |
395 | # else QUEUE |
396 | syserr("I don't know about queues"); | |
397 | # endif QUEUE | |
ed45aae1 EA |
398 | break; |
399 | ||
c1e24818 EA |
400 | case 't': /* read recipients from message */ |
401 | GrabTo = TRUE; | |
402 | break; | |
403 | ||
404 | /* compatibility flags */ | |
c1e24818 EA |
405 | case 'c': /* connect to non-local mailers */ |
406 | case 'e': /* error message disposition */ | |
407 | case 'i': /* don't let dot stop me */ | |
408 | case 'm': /* send to me too */ | |
409 | case 'T': /* set timeout interval */ | |
410 | case 'v': /* give blow-by-blow description */ | |
411 | setoption(p[1], &p[2], FALSE, TRUE); | |
35cc3fad EA |
412 | break; |
413 | ||
c1e24818 EA |
414 | case 's': /* save From lines in headers */ |
415 | setoption('f', &p[2], FALSE, TRUE); | |
b3cbe40f | 416 | break; |
26a3626c EA |
417 | |
418 | # ifdef DBM | |
419 | case 'I': /* initialize alias DBM file */ | |
75f95954 | 420 | OpMode = MD_INITALIAS; |
26a3626c EA |
421 | break; |
422 | # endif DBM | |
b3cbe40f EA |
423 | } |
424 | } | |
425 | ||
9e3c0a28 | 426 | /* |
2cce0c26 EA |
427 | ** Do basic initialization. |
428 | ** Read system control file. | |
179c1218 | 429 | ** Extract special fields for local use. |
9e3c0a28 EA |
430 | */ |
431 | ||
46f6ec52 EA |
432 | if (OpMode == MD_FREEZE || readconfig) |
433 | readcf(ConfFile); | |
22659072 | 434 | |
75f95954 | 435 | switch (OpMode) |
acae5a9d | 436 | { |
26a3626c | 437 | case MD_FREEZE: |
a9621daf | 438 | /* this is critical to avoid forgeries of the frozen config */ |
0e306e7f EA |
439 | (void) setgid(getgid()); |
440 | (void) setuid(getuid()); | |
a9621daf EA |
441 | |
442 | /* freeze the configuration */ | |
8fe4fb9b | 443 | freeze(FreezeFile); |
acae5a9d | 444 | exit(EX_OK); |
26a3626c EA |
445 | |
446 | case MD_INITALIAS: | |
447 | Verbose = TRUE; | |
448 | break; | |
acae5a9d | 449 | } |
179c1218 | 450 | |
6130649c EA |
451 | /* do heuristic mode adjustment */ |
452 | if (Verbose) | |
75f95954 EA |
453 | { |
454 | /* turn off noconnect option */ | |
455 | setoption('c', "F", TRUE, FALSE); | |
456 | ||
457 | /* turn on interactive delivery */ | |
458 | setoption('d', "", TRUE, FALSE); | |
459 | } | |
6130649c | 460 | |
179c1218 | 461 | /* our name for SMTP codes */ |
a73ae8ac | 462 | expand("\001j", jbuf, &jbuf[sizeof jbuf - 1], CurEnv); |
57c97d4a | 463 | MyHostName = jbuf; |
d6a28dd8 | 464 | |
179c1218 EA |
465 | /* the indices of local and program mailers */ |
466 | st = stab("local", ST_MAILER, ST_FIND); | |
467 | if (st == NULL) | |
468 | syserr("No local mailer defined"); | |
469 | else | |
470 | LocalMailer = st->s_mailer; | |
471 | st = stab("prog", ST_MAILER, ST_FIND); | |
472 | if (st == NULL) | |
473 | syserr("No prog mailer defined"); | |
474 | else | |
475 | ProgMailer = st->s_mailer; | |
476 | ||
6bbaf971 EA |
477 | /* operate in queue directory */ |
478 | if (chdir(QueueDir) < 0) | |
479 | { | |
480 | syserr("cannot chdir(%s)", QueueDir); | |
481 | exit(EX_SOFTWARE); | |
482 | } | |
483 | ||
64912e7e | 484 | /* |
55f0da62 | 485 | ** Do operation-mode-dependent initialization. |
64912e7e EA |
486 | */ |
487 | ||
55f0da62 | 488 | switch (OpMode) |
64912e7e | 489 | { |
55f0da62 EA |
490 | case MD_PRINT: |
491 | /* print the queue */ | |
74f37936 | 492 | #ifdef QUEUE |
64912e7e EA |
493 | dropenvelope(CurEnv); |
494 | printqueue(); | |
495 | exit(EX_OK); | |
74f37936 EA |
496 | #else QUEUE |
497 | usrerr("No queue to print"); | |
498 | finis(); | |
499 | #endif QUEUE | |
8acb5142 | 500 | |
55f0da62 EA |
501 | case MD_INITALIAS: |
502 | /* initialize alias database */ | |
503 | initaliases(AliasFile, TRUE); | |
f4dbf345 | 504 | exit(EX_OK); |
cdb17311 | 505 | |
55f0da62 EA |
506 | case MD_DAEMON: |
507 | /* don't open alias database -- done in srvrsmtp */ | |
508 | break; | |
509 | ||
510 | default: | |
511 | /* open the alias database */ | |
512 | initaliases(AliasFile, FALSE); | |
513 | break; | |
514 | } | |
515 | ||
9c6d4c70 | 516 | # ifdef DEBUG |
9678c96d | 517 | if (tTd(0, 15)) |
9c6d4c70 | 518 | { |
f6a0cc15 | 519 | /* print configuration table (or at least part of it) */ |
9c6d4c70 EA |
520 | printrules(); |
521 | for (i = 0; i < MAXMAILERS; i++) | |
522 | { | |
523 | register struct mailer *m = Mailer[i]; | |
1dbda134 | 524 | int j; |
9c6d4c70 EA |
525 | |
526 | if (m == NULL) | |
527 | continue; | |
97ad25b6 EA |
528 | printf("mailer %d (%s): P=%s S=%d R=%d M=%ld F=", i, m->m_name, |
529 | m->m_mailer, m->m_s_rwset, m->m_r_rwset, | |
530 | m->m_maxsize); | |
1dbda134 EA |
531 | for (j = '\0'; j <= '\177'; j++) |
532 | if (bitnset(j, m->m_flags)) | |
0e306e7f | 533 | (void) putchar(j); |
1dbda134 | 534 | printf(" E="); |
b3ef02a2 EA |
535 | xputs(m->m_eol); |
536 | printf("\n"); | |
9c6d4c70 EA |
537 | } |
538 | } | |
539 | # endif DEBUG | |
540 | ||
be2fcca9 EA |
541 | /* |
542 | ** Switch to the main envelope. | |
543 | */ | |
544 | ||
545 | CurEnv = newenvelope(&MainEnvelope); | |
e6f08ab1 | 546 | MainEnvelope.e_flags = BlankEnvelope.e_flags; |
be2fcca9 | 547 | |
cf69a203 EA |
548 | /* |
549 | ** If test mode, read addresses from stdin and process. | |
550 | */ | |
551 | ||
75f95954 | 552 | if (OpMode == MD_TEST) |
cf69a203 EA |
553 | { |
554 | char buf[MAXLINE]; | |
555 | ||
50435450 | 556 | printf("ADDRESS TEST MODE\nEnter <ruleset> <address>\n"); |
cf69a203 EA |
557 | for (;;) |
558 | { | |
559 | register char **pvp; | |
50435450 | 560 | char *q; |
50435450 | 561 | extern char *DelimChar; |
cf69a203 EA |
562 | |
563 | printf("> "); | |
0e306e7f | 564 | (void) fflush(stdout); |
cf69a203 EA |
565 | if (fgets(buf, sizeof buf, stdin) == NULL) |
566 | finis(); | |
ecfd2c8e | 567 | for (p = buf; isspace(*p); *p++) |
cf69a203 | 568 | continue; |
ecfd2c8e EA |
569 | q = p; |
570 | while (*p != '\0' && !isspace(*p)) | |
571 | p++; | |
cf69a203 EA |
572 | if (*p == '\0') |
573 | continue; | |
50435450 EA |
574 | *p = '\0'; |
575 | do | |
ecfd2c8e | 576 | { |
217a0102 EA |
577 | extern char **prescan(); |
578 | char pvpbuf[PSBUFSIZE]; | |
579 | ||
580 | pvp = prescan(++p, ',', pvpbuf); | |
50435450 | 581 | if (pvp == NULL) |
ecfd2c8e | 582 | continue; |
50435450 EA |
583 | rewrite(pvp, 3); |
584 | p = q; | |
585 | while (*p != '\0') | |
586 | { | |
587 | rewrite(pvp, atoi(p)); | |
588 | while (*p != '\0' && *p++ != ',') | |
589 | continue; | |
590 | } | |
591 | } while (*(p = DelimChar) != '\0'); | |
cf69a203 EA |
592 | } |
593 | } | |
594 | ||
e3cd595c EA |
595 | # ifdef QUEUE |
596 | /* | |
597 | ** If collecting stuff from the queue, go start doing that. | |
598 | */ | |
599 | ||
7b21425b | 600 | if (queuemode && OpMode != MD_DAEMON && QueueIntvl == 0) |
e3cd595c EA |
601 | { |
602 | runqueue(FALSE); | |
603 | finis(); | |
604 | } | |
605 | # endif QUEUE | |
606 | ||
f6a0cc15 EA |
607 | /* |
608 | ** If a daemon, wait for a request. | |
609 | ** getrequests will always return in a child. | |
25b9d645 | 610 | ** If we should also be processing the queue, start |
19147b2d EA |
611 | ** doing it in background. |
612 | ** We check for any errors that might have happened | |
613 | ** during startup. | |
f6a0cc15 EA |
614 | */ |
615 | ||
75f95954 | 616 | if (OpMode == MD_DAEMON || QueueIntvl != 0) |
25b9d645 | 617 | { |
9678c96d | 618 | if (!tTd(0, 1)) |
58b27aa4 | 619 | { |
fcdf8200 | 620 | /* put us in background */ |
58b27aa4 EA |
621 | i = fork(); |
622 | if (i < 0) | |
623 | syserr("daemon: cannot fork"); | |
624 | if (i != 0) | |
625 | exit(0); | |
fcdf8200 EA |
626 | |
627 | /* get our pid right */ | |
d9162460 | 628 | MotherPid = getpid(); |
fcdf8200 EA |
629 | |
630 | /* disconnect from our controlling tty */ | |
d188728a | 631 | disconnect(TRUE); |
58b27aa4 | 632 | } |
7338e3d4 | 633 | |
25b9d645 EA |
634 | # ifdef QUEUE |
635 | if (queuemode) | |
f309127e | 636 | { |
25b9d645 | 637 | runqueue(TRUE); |
75f95954 | 638 | if (OpMode != MD_DAEMON) |
f309127e EA |
639 | for (;;) |
640 | pause(); | |
641 | } | |
25b9d645 | 642 | # endif QUEUE |
7338e3d4 EA |
643 | dropenvelope(CurEnv); |
644 | ||
645 | #ifdef DAEMON | |
f6a0cc15 | 646 | getrequests(); |
2a16bae3 EA |
647 | |
648 | /* at this point we are in a child: reset state */ | |
75f95954 | 649 | OpMode = MD_SMTP; |
7338e3d4 | 650 | (void) newenvelope(CurEnv); |
912acb74 | 651 | openxscript(CurEnv); |
14a39063 | 652 | #endif DAEMON |
7338e3d4 | 653 | } |
88039044 EA |
654 | |
655 | # ifdef SMTP | |
656 | /* | |
657 | ** If running SMTP protocol, start collecting and executing | |
658 | ** commands. This will never return. | |
659 | */ | |
660 | ||
75f95954 | 661 | if (OpMode == MD_SMTP) |
88039044 EA |
662 | smtp(); |
663 | # endif SMTP | |
664 | ||
f6a0cc15 | 665 | /* |
e6f08ab1 | 666 | ** Do basic system initialization and set the sender |
f6a0cc15 EA |
667 | */ |
668 | ||
e6f08ab1 | 669 | initsys(); |
cbdb7357 | 670 | setsender(from); |
a9e0e597 | 671 | |
3110074f | 672 | if (OpMode != MD_ARPAFTP && *av == NULL && !GrabTo) |
e863b1fa | 673 | { |
2e3062fe EA |
674 | usrerr("Recipient names must be specified"); |
675 | ||
676 | /* collect body for UUCP return */ | |
677 | if (OpMode != MD_VERIFY) | |
678 | collect(FALSE); | |
e863b1fa EA |
679 | finis(); |
680 | } | |
75f95954 EA |
681 | if (OpMode == MD_VERIFY) |
682 | SendMode = SM_VERIFY; | |
b3cbe40f | 683 | |
b3cbe40f | 684 | /* |
d6b27179 | 685 | ** Scan argv and deliver the message to everyone. |
b3cbe40f EA |
686 | */ |
687 | ||
acae5a9d | 688 | sendtoargv(av); |
b3cbe40f | 689 | |
72e9b3cc | 690 | /* if we have had errors sofar, arrange a meaningful exit stat */ |
d916f0ca | 691 | if (Errors > 0 && ExitStat == EX_OK) |
a4b004a6 | 692 | ExitStat = EX_USAGE; |
a4b004a6 | 693 | |
dc39c568 EA |
694 | /* |
695 | ** Read the input mail. | |
696 | */ | |
697 | ||
2654b031 | 698 | CurEnv->e_to = NULL; |
75f95954 | 699 | if (OpMode != MD_VERIFY || GrabTo) |
49086753 | 700 | collect(FALSE); |
d829793b | 701 | errno = 0; |
35cc3fad | 702 | |
4e1f4d4b | 703 | /* collect statistics */ |
7338e3d4 EA |
704 | if (OpMode != MD_VERIFY) |
705 | markstats(CurEnv, (ADDRESS *) NULL); | |
b3cbe40f | 706 | |
d6b27179 | 707 | # ifdef DEBUG |
9678c96d | 708 | if (tTd(1, 1)) |
2654b031 | 709 | printf("From person = \"%s\"\n", CurEnv->e_from.q_paddr); |
d6b27179 EA |
710 | # endif DEBUG |
711 | ||
b3cbe40f EA |
712 | /* |
713 | ** Actually send everything. | |
d6b27179 | 714 | ** If verifying, just ack. |
b3cbe40f EA |
715 | */ |
716 | ||
7338e3d4 EA |
717 | CurEnv->e_from.q_flags |= QDONTSEND; |
718 | CurEnv->e_to = NULL; | |
f7e74083 | 719 | sendall(CurEnv, SM_DEFAULT); |
b3cbe40f EA |
720 | |
721 | /* | |
722 | ** All done. | |
723 | */ | |
724 | ||
725 | finis(); | |
726 | } | |
727 | \f/* | |
728 | ** FINIS -- Clean up and exit. | |
729 | ** | |
b3cbe40f EA |
730 | ** Parameters: |
731 | ** none | |
732 | ** | |
733 | ** Returns: | |
734 | ** never | |
735 | ** | |
736 | ** Side Effects: | |
96faada8 | 737 | ** exits sendmail |
b3cbe40f EA |
738 | */ |
739 | ||
740 | finis() | |
741 | { | |
aba51985 | 742 | # ifdef DEBUG |
9678c96d | 743 | if (tTd(2, 1)) |
e6f08ab1 | 744 | printf("\n====finis: stat %d e_flags %o\n", ExitStat, CurEnv->e_flags); |
aba51985 EA |
745 | # endif DEBUG |
746 | ||
7338e3d4 | 747 | /* clean up temp files */ |
912acb74 | 748 | CurEnv->e_to = NULL; |
e6f08ab1 | 749 | dropenvelope(CurEnv); |
b3cbe40f | 750 | |
7338e3d4 EA |
751 | /* post statistics */ |
752 | poststats(StatFile); | |
68f0b54c | 753 | |
7338e3d4 | 754 | /* and exit */ |
36a4e219 EA |
755 | # ifdef LOG |
756 | if (LogLevel > 11) | |
757 | syslog(LOG_DEBUG, "finis, pid=%d", getpid()); | |
758 | # endif LOG | |
c8ec8736 EA |
759 | if (ExitStat == EX_TEMPFAIL) |
760 | ExitStat = EX_OK; | |
b3cbe40f EA |
761 | exit(ExitStat); |
762 | } | |
763 | \f/* | |
6e2f38be EA |
764 | ** INTSIG -- clean up on interrupt |
765 | ** | |
7338e3d4 EA |
766 | ** This just arranges to exit. It pessimises in that it |
767 | ** may resend a message. | |
6e2f38be EA |
768 | ** |
769 | ** Parameters: | |
770 | ** none. | |
771 | ** | |
772 | ** Returns: | |
773 | ** none. | |
774 | ** | |
775 | ** Side Effects: | |
7338e3d4 | 776 | ** Unlocks the current job. |
6e2f38be EA |
777 | */ |
778 | ||
779 | intsig() | |
780 | { | |
7338e3d4 EA |
781 | FileName = NULL; |
782 | unlockqueue(CurEnv); | |
783 | exit(EX_OK); | |
6e2f38be EA |
784 | } |
785 | \f/* | |
721fad23 EA |
786 | ** INITMACROS -- initialize the macro system |
787 | ** | |
788 | ** This just involves defining some macros that are actually | |
789 | ** used internally as metasymbols to be themselves. | |
790 | ** | |
791 | ** Parameters: | |
792 | ** none. | |
793 | ** | |
794 | ** Returns: | |
795 | ** none. | |
796 | ** | |
797 | ** Side Effects: | |
798 | ** initializes several macros to be themselves. | |
799 | */ | |
800 | ||
9dbc8d99 | 801 | struct metamac |
721fad23 | 802 | { |
9dbc8d99 EA |
803 | char metaname; |
804 | char metaval; | |
805 | }; | |
721fad23 | 806 | |
9dbc8d99 EA |
807 | struct metamac MetaMacros[] = |
808 | { | |
eca244ca | 809 | /* LHS pattern matching characters */ |
2018e82d | 810 | '*', MATCHZANY, '+', MATCHANY, '-', MATCHONE, '=', MATCHCLASS, |
9f39d7cd | 811 | '~', MATCHNCLASS, |
721fad23 EA |
812 | |
813 | /* these are RHS metasymbols */ | |
2018e82d | 814 | '#', CANONNET, '@', CANONHOST, ':', CANONUSER, '>', CALLSUBR, |
41173b8f | 815 | '{', MATCHLOOKUP, '}', MATCHELOOKUP, |
721fad23 | 816 | |
eca244ca | 817 | /* the conditional operations */ |
2018e82d | 818 | '?', CONDIF, '|', CONDELSE, '.', CONDFI, |
9dbc8d99 | 819 | |
eca244ca | 820 | /* and finally the hostname lookup characters */ |
217a0102 | 821 | '[', HOSTBEGIN, ']', HOSTEND, |
eca244ca | 822 | |
9dbc8d99 | 823 | '\0' |
721fad23 EA |
824 | }; |
825 | ||
826 | initmacros() | |
827 | { | |
9dbc8d99 EA |
828 | register struct metamac *m; |
829 | char buf[5]; | |
830 | register int c; | |
721fad23 | 831 | |
9dbc8d99 EA |
832 | for (m = MetaMacros; m->metaname != '\0'; m++) |
833 | { | |
834 | buf[0] = m->metaval; | |
835 | buf[1] = '\0'; | |
7338e3d4 | 836 | define(m->metaname, newstr(buf), CurEnv); |
9dbc8d99 EA |
837 | } |
838 | buf[0] = MATCHREPL; | |
839 | buf[2] = '\0'; | |
840 | for (c = '0'; c <= '9'; c++) | |
841 | { | |
842 | buf[1] = c; | |
7338e3d4 | 843 | define(c, newstr(buf), CurEnv); |
9dbc8d99 | 844 | } |
721fad23 | 845 | } |
dd1fe05b | 846 | \f/* |
acae5a9d EA |
847 | ** FREEZE -- freeze BSS & allocated memory |
848 | ** | |
849 | ** This will be used to efficiently load the configuration file. | |
850 | ** | |
851 | ** Parameters: | |
8fe4fb9b | 852 | ** freezefile -- the name of the file to freeze to. |
acae5a9d EA |
853 | ** |
854 | ** Returns: | |
855 | ** none. | |
856 | ** | |
857 | ** Side Effects: | |
8fe4fb9b | 858 | ** Writes BSS and malloc'ed memory to freezefile |
acae5a9d EA |
859 | */ |
860 | ||
7338e3d4 | 861 | union frz |
acae5a9d | 862 | { |
7338e3d4 EA |
863 | char frzpad[BUFSIZ]; /* insure we are on a BUFSIZ boundary */ |
864 | struct | |
865 | { | |
866 | time_t frzstamp; /* timestamp on this freeze */ | |
867 | char *frzbrk; /* the current break */ | |
2e3062fe EA |
868 | char *frzedata; /* address of edata */ |
869 | char *frzend; /* address of end */ | |
7338e3d4 EA |
870 | char frzver[252]; /* sendmail version */ |
871 | } frzinfo; | |
acae5a9d EA |
872 | }; |
873 | ||
8fe4fb9b EA |
874 | freeze(freezefile) |
875 | char *freezefile; | |
acae5a9d EA |
876 | { |
877 | int f; | |
7338e3d4 | 878 | union frz fhdr; |
2e3062fe | 879 | extern char edata, end; |
acae5a9d | 880 | extern char *sbrk(); |
912acb74 | 881 | extern char Version[]; |
acae5a9d | 882 | |
8fe4fb9b | 883 | if (freezefile == NULL) |
acae5a9d EA |
884 | return; |
885 | ||
886 | /* try to open the freeze file */ | |
8fe4fb9b | 887 | f = creat(freezefile, FileMode); |
acae5a9d EA |
888 | if (f < 0) |
889 | { | |
890 | syserr("Cannot freeze"); | |
891 | errno = 0; | |
892 | return; | |
893 | } | |
894 | ||
895 | /* build the freeze header */ | |
7338e3d4 EA |
896 | fhdr.frzinfo.frzstamp = curtime(); |
897 | fhdr.frzinfo.frzbrk = sbrk(0); | |
2e3062fe EA |
898 | fhdr.frzinfo.frzedata = &edata; |
899 | fhdr.frzinfo.frzend = &end; | |
0e306e7f | 900 | (void) strcpy(fhdr.frzinfo.frzver, Version); |
acae5a9d EA |
901 | |
902 | /* write out the freeze header */ | |
611b763d | 903 | if (write(f, (char *) &fhdr, sizeof fhdr) != sizeof fhdr || |
34fe0a9b EA |
904 | write(f, (char *) &edata, (int) (fhdr.frzinfo.frzbrk - &edata)) != |
905 | (int) (fhdr.frzinfo.frzbrk - &edata)) | |
7338e3d4 | 906 | { |
acae5a9d | 907 | syserr("Cannot freeze"); |
7338e3d4 | 908 | } |
acae5a9d EA |
909 | |
910 | /* fine, clean up */ | |
911 | (void) close(f); | |
912 | } | |
913 | \f/* | |
914 | ** THAW -- read in the frozen configuration file. | |
915 | ** | |
916 | ** Parameters: | |
8fe4fb9b | 917 | ** freezefile -- the name of the file to thaw from. |
acae5a9d EA |
918 | ** |
919 | ** Returns: | |
920 | ** TRUE if it successfully read the freeze file. | |
921 | ** FALSE otherwise. | |
922 | ** | |
923 | ** Side Effects: | |
8fe4fb9b | 924 | ** reads freezefile in to BSS area. |
acae5a9d EA |
925 | */ |
926 | ||
8fe4fb9b EA |
927 | thaw(freezefile) |
928 | char *freezefile; | |
acae5a9d EA |
929 | { |
930 | int f; | |
7338e3d4 | 931 | union frz fhdr; |
a59237a4 | 932 | extern char edata, end; |
912acb74 | 933 | extern char Version[]; |
17a67c62 | 934 | extern caddr_t brk(); |
acae5a9d | 935 | |
8fe4fb9b | 936 | if (freezefile == NULL) |
acae5a9d EA |
937 | return (FALSE); |
938 | ||
939 | /* open the freeze file */ | |
8fe4fb9b | 940 | f = open(freezefile, 0); |
acae5a9d EA |
941 | if (f < 0) |
942 | { | |
943 | errno = 0; | |
944 | return (FALSE); | |
945 | } | |
946 | ||
947 | /* read in the header */ | |
611b763d | 948 | if (read(f, (char *) &fhdr, sizeof fhdr) < sizeof fhdr || |
2e3062fe EA |
949 | fhdr.frzinfo.frzedata != &edata || |
950 | fhdr.frzinfo.frzend != &end || | |
7338e3d4 | 951 | strcmp(fhdr.frzinfo.frzver, Version) != 0) |
acae5a9d EA |
952 | { |
953 | (void) close(f); | |
954 | return (FALSE); | |
955 | } | |
956 | ||
957 | /* arrange to have enough space */ | |
17a67c62 | 958 | if (brk(fhdr.frzinfo.frzbrk) == (caddr_t) -1) |
acae5a9d | 959 | { |
7338e3d4 | 960 | syserr("Cannot break to %x", fhdr.frzinfo.frzbrk); |
acae5a9d EA |
961 | (void) close(f); |
962 | return (FALSE); | |
963 | } | |
964 | ||
965 | /* now read in the freeze file */ | |
34fe0a9b EA |
966 | if (read(f, (char *) &edata, (int) (fhdr.frzinfo.frzbrk - &edata)) != |
967 | (int) (fhdr.frzinfo.frzbrk - &edata)) | |
acae5a9d EA |
968 | { |
969 | /* oops! we have trashed memory..... */ | |
0e306e7f | 970 | (void) write(2, "Cannot read freeze file\n", 24); |
7338e3d4 | 971 | _exit(EX_SOFTWARE); |
acae5a9d EA |
972 | } |
973 | ||
974 | (void) close(f); | |
975 | return (TRUE); | |
976 | } | |
813d8709 EA |
977 | \f/* |
978 | ** DISCONNECT -- remove our connection with any foreground process | |
979 | ** | |
980 | ** Parameters: | |
d188728a EA |
981 | ** fulldrop -- if set, we should also drop the controlling |
982 | ** TTY if possible -- this should only be done when | |
983 | ** setting up the daemon since otherwise UUCP can | |
984 | ** leave us trying to open a dialin, and we will | |
985 | ** wait for the carrier. | |
813d8709 EA |
986 | ** |
987 | ** Returns: | |
988 | ** none | |
989 | ** | |
990 | ** Side Effects: | |
991 | ** Trys to insure that we are immune to vagaries of | |
992 | ** the controlling tty. | |
993 | */ | |
994 | ||
d188728a EA |
995 | disconnect(fulldrop) |
996 | bool fulldrop; | |
813d8709 EA |
997 | { |
998 | int fd; | |
999 | ||
e6f08ab1 EA |
1000 | #ifdef DEBUG |
1001 | if (tTd(52, 1)) | |
b9accadd EA |
1002 | printf("disconnect: In %d Out %d\n", fileno(InChannel), |
1003 | fileno(OutChannel)); | |
e6f08ab1 | 1004 | if (tTd(52, 5)) |
813d8709 | 1005 | { |
e6f08ab1 EA |
1006 | printf("don't\n"); |
1007 | return; | |
813d8709 | 1008 | } |
e6f08ab1 | 1009 | #endif DEBUG |
813d8709 EA |
1010 | |
1011 | /* be sure we don't get nasty signals */ | |
0e306e7f EA |
1012 | (void) signal(SIGHUP, SIG_IGN); |
1013 | (void) signal(SIGINT, SIG_IGN); | |
1014 | (void) signal(SIGQUIT, SIG_IGN); | |
813d8709 EA |
1015 | |
1016 | /* we can't communicate with our caller, so.... */ | |
7338e3d4 EA |
1017 | HoldErrs = TRUE; |
1018 | ErrorMode = EM_MAIL; | |
813d8709 EA |
1019 | Verbose = FALSE; |
1020 | ||
1021 | /* all input from /dev/null */ | |
813d8709 | 1022 | if (InChannel != stdin) |
b9accadd EA |
1023 | { |
1024 | (void) fclose(InChannel); | |
1025 | InChannel = stdin; | |
1026 | } | |
1027 | (void) freopen("/dev/null", "r", stdin); | |
813d8709 EA |
1028 | |
1029 | /* output to the transcript */ | |
b9accadd | 1030 | if (OutChannel != stdout) |
813d8709 | 1031 | { |
b9accadd EA |
1032 | (void) fclose(OutChannel); |
1033 | OutChannel = stdout; | |
813d8709 | 1034 | } |
912acb74 EA |
1035 | if (CurEnv->e_xfp == NULL) |
1036 | CurEnv->e_xfp = fopen("/dev/null", "w"); | |
b9accadd EA |
1037 | (void) fflush(stdout); |
1038 | (void) close(1); | |
1039 | (void) close(2); | |
912acb74 | 1040 | while ((fd = dup(fileno(CurEnv->e_xfp))) < 2 && fd > 0) |
b9accadd | 1041 | continue; |
813d8709 | 1042 | |
e6f08ab1 EA |
1043 | #ifdef TIOCNOTTY |
1044 | /* drop our controlling TTY completely if possible */ | |
d188728a | 1045 | if (fulldrop) |
e6f08ab1 | 1046 | { |
d188728a EA |
1047 | fd = open("/dev/tty", 2); |
1048 | if (fd >= 0) | |
1049 | { | |
17a67c62 | 1050 | (void) ioctl(fd, (int) TIOCNOTTY, (char *) 0); |
d188728a EA |
1051 | (void) close(fd); |
1052 | } | |
17a67c62 | 1053 | (void) setpgrp(0, 0); |
70faa7c8 | 1054 | errno = 0; |
e6f08ab1 EA |
1055 | } |
1056 | #endif TIOCNOTTY | |
1057 | ||
813d8709 EA |
1058 | # ifdef LOG |
1059 | if (LogLevel > 11) | |
1060 | syslog(LOG_DEBUG, "in background, pid=%d", getpid()); | |
1061 | # endif LOG | |
1062 | ||
1063 | errno = 0; | |
1064 | } |