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 | * | |
417f7a11 | 6 | * %sccs.include.redist.c% |
bee79b64 | 7 | */ |
aeb2545d DF |
8 | |
9 | #ifndef lint | |
10 | char copyright[] = | |
bee79b64 | 11 | "@(#) Copyright (c) 1988 Regents of the University of California.\n\ |
aeb2545d | 12 | All rights reserved.\n"; |
bee79b64 | 13 | #endif /* not lint */ |
aeb2545d DF |
14 | |
15 | #ifndef lint | |
319b1ec0 | 16 | static char sccsid[] = "@(#)main.c 6.47 (Berkeley) %G%"; |
bee79b64 | 17 | #endif /* not lint */ |
aeb2545d | 18 | |
137c2d1f KB |
19 | #define _DEFINE |
20 | ||
f8a31c8e | 21 | #include "sendmail.h" |
f2e44ded | 22 | #include <sys/stat.h> |
137c2d1f KB |
23 | #include <signal.h> |
24 | #include <sgtty.h> | |
6feb509e | 25 | #ifdef NAMED_BIND |
137c2d1f KB |
26 | #include <arpa/nameser.h> |
27 | #include <resolv.h> | |
6feb509e | 28 | #endif |
94bc039a | 29 | #include <pwd.h> |
b3cbe40f | 30 | |
17a67c62 | 31 | # ifdef lint |
2e3062fe | 32 | char edata, end; |
17a67c62 EA |
33 | # endif lint |
34 | ||
b3cbe40f | 35 | /* |
96faada8 | 36 | ** SENDMAIL -- Post mail to a set of destinations. |
b3cbe40f EA |
37 | ** |
38 | ** This is the basic mail router. All user mail programs should | |
96faada8 | 39 | ** call this routine to actually deliver mail. Sendmail in |
b3cbe40f EA |
40 | ** turn calls a bunch of mail servers that do the real work of |
41 | ** delivering the mail. | |
42 | ** | |
3199e4f3 EA |
43 | ** Sendmail is driven by tables read in from /usr/lib/sendmail.cf |
44 | ** (read by readcf.c). Some more static configuration info, | |
45 | ** including some code that you may want to tailor for your | |
46 | ** installation, is in conf.c. You may also want to touch | |
47 | ** daemon.c (if you have some other IPC mechanism), acct.c | |
48 | ** (to change your accounting), names.c (to adjust the name | |
49 | ** server mechanism). | |
b3cbe40f EA |
50 | ** |
51 | ** Usage: | |
7338e3d4 | 52 | ** /usr/lib/sendmail [flags] addr ... |
b3cbe40f | 53 | ** |
7338e3d4 | 54 | ** See the associated documentation for details. |
b3cbe40f | 55 | ** |
b3cbe40f | 56 | ** Author: |
7338e3d4 EA |
57 | ** Eric Allman, UCB/INGRES (until 10/81) |
58 | ** Britton-Lee, Inc., purveyors of fine | |
59 | ** database computers (from 11/81) | |
ce46a48a | 60 | ** Now back at UCB at the Mammoth project. |
7338e3d4 EA |
61 | ** The support of the INGRES Project and Britton-Lee is |
62 | ** gratefully acknowledged. Britton-Lee in | |
63 | ** particular had absolutely nothing to gain from | |
64 | ** my involvement in this project. | |
b3cbe40f EA |
65 | */ |
66 | ||
67 | ||
83f674d8 | 68 | int NextMailer; /* "free" index into Mailer struct */ |
912acb74 | 69 | char *FullName; /* sender's full name */ |
be2fcca9 | 70 | ENVELOPE BlankEnvelope; /* a "blank" envelope */ |
2654b031 | 71 | ENVELOPE MainEnvelope; /* the envelope around the basic letter */ |
2e3062fe | 72 | ADDRESS NullAddress = /* a null address */ |
599d88d0 | 73 | { "", "", NULL, "" }; |
6e99f903 EA |
74 | char *UserEnviron[MAXUSERENVIRON + 1]; |
75 | /* saved user environment */ | |
2e3062fe EA |
76 | |
77 | /* | |
78 | ** Pointers for setproctitle. | |
79 | ** This allows "ps" listings to give more useful information. | |
80 | ** These must be kept out of BSS for frozen configuration files | |
81 | ** to work. | |
82 | */ | |
83 | ||
84 | # ifdef SETPROCTITLE | |
85 | char **Argv = NULL; /* pointer to argument vector */ | |
86 | char *LastArgv = NULL; /* end of argv */ | |
f3d8f6d6 | 87 | # endif /* SETPROCTITLE */ |
b3cbe40f | 88 | |
f96fa7de EA |
89 | static void obsolete(); |
90 | ||
4aebfe5d EA |
91 | #ifdef DAEMON |
92 | #ifndef SMTP | |
93 | ERROR %%%% Cannot have daemon mode without SMTP %%%% ERROR | |
f3d8f6d6 EA |
94 | #endif /* SMTP */ |
95 | #endif /* DAEMON */ | |
4aebfe5d | 96 | |
a5bf555b | 97 | #define MAXCONFIGLEVEL 4 /* highest config version level known */ |
2281a453 | 98 | |
e36705df | 99 | main(argc, argv, envp) |
b3cbe40f EA |
100 | int argc; |
101 | char **argv; | |
e36705df | 102 | char **envp; |
b3cbe40f EA |
103 | { |
104 | register char *p; | |
af04f6e4 | 105 | register char *q; |
acae5a9d | 106 | char **av; |
17df0fcb | 107 | char *locname; |
b3cbe40f | 108 | extern int finis(); |
b3cbe40f | 109 | extern char Version[]; |
b2d4b27a | 110 | char *ep, *from; |
b3cbe40f | 111 | typedef int (*fnptr)(); |
be2fcca9 | 112 | STAB *st; |
9e3c0a28 | 113 | register int i; |
d0a69620 | 114 | int j; |
4388720d | 115 | bool readconfig = TRUE; |
aba51985 | 116 | bool queuemode = FALSE; /* process queue requests */ |
43e0af62 | 117 | bool nothaw; |
66391bf0 | 118 | bool safecf = TRUE; |
be2fcca9 | 119 | static bool reenter = FALSE; |
4b26318e | 120 | char *argv0 = argv[0]; |
94bc039a | 121 | struct passwd *pw; |
e0539260 | 122 | struct stat stb; |
94bc039a | 123 | char realuser[256]; |
b2d4b27a | 124 | char jbuf[MAXHOSTNAMELEN]; /* holds MyHostName */ |
f96fa7de EA |
125 | extern int DtableSize; |
126 | extern int optind; | |
ed45aae1 | 127 | extern time_t convtime(); |
dd1fe05b | 128 | extern putheader(), putbody(); |
be2fcca9 | 129 | extern ENVELOPE *newenvelope(); |
0df908a9 | 130 | extern void intsig(); |
1dbda134 | 131 | extern char **myhostname(); |
22e6d6b8 | 132 | extern char *arpadate(); |
5973222c | 133 | extern char *getrealhostname(); |
f96fa7de | 134 | extern char *optarg; |
6e99f903 | 135 | extern char **environ; |
b72377c6 | 136 | |
22659072 EA |
137 | /* |
138 | ** Check to see if we reentered. | |
139 | ** This would normally happen if e_putheader or e_putbody | |
140 | ** were NULL when invoked. | |
141 | */ | |
142 | ||
b72377c6 EA |
143 | if (reenter) |
144 | { | |
145 | syserr("main: reentered!"); | |
146 | abort(); | |
147 | } | |
148 | reenter = TRUE; | |
abae7b2d | 149 | extern ADDRESS *recipient(); |
17df0fcb | 150 | bool canrename; |
b3cbe40f | 151 | |
07c63e56 | 152 | #ifndef SYS5TZ |
140717b5 EA |
153 | /* enforce use of kernel-supplied time zone information */ |
154 | unsetenv("TZ"); | |
155 | #endif | |
60c0b7b2 | 156 | |
3eb4fac4 EA |
157 | /* in 4.4BSD, the table can be huge; impose a reasonable limit */ |
158 | DtableSize = getdtablesize(); | |
159 | if (DtableSize > 256) | |
160 | DtableSize = 256; | |
161 | ||
d15bd559 EA |
162 | /* |
163 | ** Be sure we have enough file descriptors. | |
59b65d0f | 164 | ** But also be sure that 0, 1, & 2 are open. |
d15bd559 EA |
165 | */ |
166 | ||
e1098041 | 167 | i = open("/dev/null", O_RDWR); |
e0539260 EA |
168 | if (fstat(STDIN_FILENO, &stb) < 0) |
169 | (void) dup2(i, STDIN_FILENO); | |
170 | if (fstat(STDOUT_FILENO, &stb) < 0) | |
171 | (void) dup2(i, STDOUT_FILENO); | |
172 | if (fstat(STDERR_FILENO, &stb) < 0) | |
173 | (void) dup2(i, STDERR_FILENO); | |
174 | (void) close(i); | |
66391bf0 | 175 | |
3eb4fac4 | 176 | i = DtableSize; |
1627a785 EA |
177 | while (--i > 0) |
178 | { | |
179 | if (i != STDIN_FILENO && i != STDOUT_FILENO && i != STDERR_FILENO) | |
180 | (void) close(i); | |
181 | } | |
d15bd559 EA |
182 | errno = 0; |
183 | ||
07adc4f5 RA |
184 | #ifdef LOG_MAIL |
185 | openlog("sendmail", LOG_PID, LOG_MAIL); | |
186 | #else | |
187 | openlog("sendmail", LOG_PID); | |
188 | #endif | |
189 | ||
bb09c502 EA |
190 | /* set up the blank envelope */ |
191 | BlankEnvelope.e_puthdr = putheader; | |
192 | BlankEnvelope.e_putbody = putbody; | |
193 | BlankEnvelope.e_xfp = NULL; | |
2e3062fe | 194 | STRUCTCOPY(NullAddress, BlankEnvelope.e_from); |
bd575ea9 EA |
195 | STRUCTCOPY(BlankEnvelope, MainEnvelope); |
196 | CurEnv = &MainEnvelope; | |
bb09c502 | 197 | |
8c8e8e94 EA |
198 | /* |
199 | ** Set default values for variables. | |
200 | ** These cannot be in initialized data space. | |
201 | */ | |
202 | ||
203 | setdefaults(&BlankEnvelope); | |
204 | ||
ca708b8e EA |
205 | RealUid = getuid(); |
206 | RealGid = getgid(); | |
207 | ||
94bc039a EA |
208 | pw = getpwuid(RealUid); |
209 | if (pw != NULL) | |
210 | (void) strcpy(realuser, pw->pw_name); | |
211 | else | |
212 | (void) sprintf(realuser, "Unknown UID %d", RealUid); | |
213 | ||
b2d4b27a KB |
214 | /* Handle any non-getoptable constructions. */ |
215 | obsolete(argv); | |
216 | ||
22659072 EA |
217 | /* |
218 | ** Do a quick prescan of the argument list. | |
219 | ** We do this to find out if we can potentially thaw the | |
220 | ** configuration file. If not, we do the thaw now so that | |
221 | ** the argument processing applies to this run rather than | |
222 | ** to the run that froze the configuration. | |
223 | */ | |
43e0af62 | 224 | nothaw = FALSE; |
94bc039a | 225 | #ifdef __osf__ |
97030b8b EA |
226 | #define OPTIONS "b:C:cd:e:F:f:h:Iimno:p:q:r:sTtvx" |
227 | #else | |
cbcd7b22 | 228 | #define OPTIONS "b:C:cd:e:F:f:h:Iimno:p:q:r:sTtv" |
97030b8b | 229 | #endif |
a0431b8d | 230 | while ((j = getopt(argc, argv, OPTIONS)) != EOF) |
f96fa7de EA |
231 | { |
232 | switch (j) | |
560a80d9 | 233 | { |
b2d4b27a KB |
234 | case 'b': |
235 | if (optarg[0] == 'z' && optarg[1] == '\0') | |
236 | nothaw = TRUE; | |
237 | break; | |
238 | ||
239 | case 'C': | |
240 | ConfFile = optarg; | |
0e306e7f EA |
241 | (void) setgid(getrgid()); |
242 | (void) setuid(getruid()); | |
66391bf0 | 243 | safecf = FALSE; |
43e0af62 | 244 | nothaw = TRUE; |
b2d4b27a KB |
245 | break; |
246 | ||
247 | case 'd': | |
43e0af62 | 248 | tTsetup(tTdvect, sizeof tTdvect, "0-99.1"); |
b2d4b27a | 249 | tTflag(optarg); |
43e0af62 EA |
250 | setbuf(stdout, (char *) NULL); |
251 | printf("Version %s\n", Version); | |
b2d4b27a | 252 | break; |
43e0af62 | 253 | } |
f96fa7de | 254 | } |
2bc15c4e KB |
255 | |
256 | InChannel = stdin; | |
257 | OutChannel = stdout; | |
258 | ||
ca708b8e | 259 | # ifdef FROZENCONFIG |
43e0af62 | 260 | if (!nothaw) |
4b26318e | 261 | readconfig = !thaw(FreezeFile, argv0); |
ca708b8e EA |
262 | # else |
263 | readconfig = TRUE; | |
264 | # endif | |
22659072 | 265 | |
42bbf376 | 266 | # ifdef SETPROCTITLE |
6e99f903 EA |
267 | /* |
268 | ** Move the environment so setproctitle can use the space at | |
269 | ** the top of memory. | |
270 | */ | |
271 | ||
272 | for (i = j = 0; j < MAXUSERENVIRON && (p = envp[i]) != NULL; i++) | |
273 | { | |
274 | if (strncmp(p, "FS=", 3) == 0 || strncmp(p, "LD_", 3) == 0) | |
275 | continue; | |
276 | UserEnviron[j++] = newstr(p); | |
277 | } | |
278 | UserEnviron[j] = NULL; | |
279 | environ = UserEnviron; | |
280 | ||
42bbf376 EA |
281 | /* |
282 | ** Save start and extent of argv for setproctitle. | |
283 | */ | |
284 | ||
285 | Argv = argv; | |
6e99f903 | 286 | if (i > 0) |
577bce94 EA |
287 | LastArgv = envp[i - 1] + strlen(envp[i - 1]); |
288 | else | |
289 | LastArgv = argv[argc - 1] + strlen(argv[argc - 1]); | |
f3d8f6d6 | 290 | # endif /* SETPROCTITLE */ |
e36705df | 291 | |
b3cbe40f | 292 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) |
6e2f38be | 293 | (void) signal(SIGINT, intsig); |
eb211e2c | 294 | if (signal(SIGHUP, SIG_IGN) != SIG_IGN) |
6e2f38be EA |
295 | (void) signal(SIGHUP, intsig); |
296 | (void) signal(SIGTERM, intsig); | |
ed7382d3 | 297 | (void) signal(SIGPIPE, SIG_IGN); |
9a62d249 | 298 | OldUmask = umask(022); |
75f95954 | 299 | OpMode = MD_DELIVER; |
561c7c50 | 300 | FullName = getenv("NAME"); |
dd1fe05b | 301 | |
b3cbe40f EA |
302 | errno = 0; |
303 | from = NULL; | |
378e8da7 | 304 | |
4388720d | 305 | if (readconfig) |
1dbda134 | 306 | { |
4388720d EA |
307 | /* initialize some macros, etc. */ |
308 | initmacros(); | |
309 | ||
94bc039a EA |
310 | /* version */ |
311 | define('v', Version, CurEnv); | |
312 | } | |
dec0d30e | 313 | |
94bc039a EA |
314 | /* hostname */ |
315 | av = myhostname(jbuf, sizeof jbuf); | |
316 | if (jbuf[0] != '\0') | |
317 | { | |
318 | struct utsname utsname; | |
319 | extern char *strchr(); | |
dec0d30e | 320 | |
94bc039a EA |
321 | if (tTd(0, 4)) |
322 | printf("canonical name: %s\n", jbuf); | |
323 | p = newstr(jbuf); | |
324 | define('w', p, CurEnv); | |
72364bac | 325 | setclass('w', p); |
422bed79 | 326 | |
94bc039a EA |
327 | q = strchr(jbuf, '.'); |
328 | if (q != NULL) | |
43e0af62 | 329 | { |
94bc039a | 330 | *q++ = '\0'; |
94bc039a | 331 | define('m', q, CurEnv); |
72364bac EA |
332 | p = newstr(jbuf); |
333 | setclass('w', p); | |
43e0af62 | 334 | } |
4388720d | 335 | |
94bc039a EA |
336 | if (uname(&utsname) >= 0) |
337 | p = utsname.nodename; | |
338 | else | |
339 | { | |
340 | makelower(jbuf); | |
341 | p = jbuf; | |
342 | } | |
343 | if (tTd(0, 4)) | |
344 | printf("UUCP nodename: %s\n", p); | |
345 | p = newstr(p); | |
346 | define('k', p, CurEnv); | |
347 | setclass('w', p); | |
348 | } | |
349 | while (av != NULL && *av != NULL) | |
350 | { | |
351 | if (tTd(0, 4)) | |
352 | printf("\ta.k.a.: %s\n", *av); | |
353 | setclass('w', *av++); | |
1dbda134 | 354 | } |
378e8da7 EA |
355 | |
356 | /* current time */ | |
22e6d6b8 | 357 | define('b', arpadate((char *) NULL), CurEnv); |
378e8da7 | 358 | |
94bc039a EA |
359 | /* |
360 | ** Find our real host name for future logging. | |
361 | */ | |
362 | ||
363 | p = getrealhostname(STDIN_FILENO); | |
364 | if (p != NULL) | |
365 | RealHostName = newstr(p); | |
366 | else | |
367 | RealHostName = "localhost"; | |
368 | ||
a691a4a6 | 369 | /* |
c1e24818 | 370 | ** Crack argv. |
a691a4a6 EA |
371 | */ |
372 | ||
acae5a9d | 373 | av = argv; |
f3d8f6d6 | 374 | p = strrchr(*av, '/'); |
26a3626c EA |
375 | if (p++ == NULL) |
376 | p = *av; | |
377 | if (strcmp(p, "newaliases") == 0) | |
75f95954 | 378 | OpMode = MD_INITALIAS; |
26a3626c | 379 | else if (strcmp(p, "mailq") == 0) |
75f95954 | 380 | OpMode = MD_PRINT; |
34fe0a9b EA |
381 | else if (strcmp(p, "smtpd") == 0) |
382 | OpMode = MD_DAEMON; | |
b2d4b27a KB |
383 | |
384 | optind = 1; | |
a0431b8d | 385 | while ((j = getopt(argc, argv, OPTIONS)) != EOF) |
f96fa7de EA |
386 | { |
387 | switch (j) | |
a691a4a6 | 388 | { |
75f95954 | 389 | case 'b': /* operations mode */ |
f96fa7de | 390 | switch (j = *optarg) |
c1e24818 | 391 | { |
75f95954 | 392 | case MD_DAEMON: |
908dc8db MK |
393 | # ifdef DAEMON |
394 | if (getuid() != 0) { | |
395 | usrerr("Permission denied"); | |
396 | exit (EX_USAGE); | |
397 | } | |
398 | (void) unsetenv("HOSTALIASES"); | |
399 | # else | |
2e15a2d8 MK |
400 | usrerr("Daemon mode not implemented"); |
401 | ExitStat = EX_USAGE; | |
75f95954 | 402 | break; |
f3d8f6d6 | 403 | # endif /* DAEMON */ |
75f95954 EA |
404 | case MD_SMTP: |
405 | # ifndef SMTP | |
2e15a2d8 MK |
406 | usrerr("I don't speak SMTP"); |
407 | ExitStat = EX_USAGE; | |
75f95954 | 408 | break; |
f3d8f6d6 | 409 | # endif /* SMTP */ |
75f95954 EA |
410 | case MD_DELIVER: |
411 | case MD_VERIFY: | |
412 | case MD_TEST: | |
413 | case MD_INITALIAS: | |
414 | case MD_PRINT: | |
ca708b8e | 415 | #ifdef FROZENCONFIG |
75f95954 | 416 | case MD_FREEZE: |
ca708b8e | 417 | #endif |
b2d4b27a | 418 | OpMode = j; |
75f95954 EA |
419 | break; |
420 | ||
ca708b8e EA |
421 | #ifndef FROZENCONFIG |
422 | case MD_FREEZE: | |
423 | usrerr("Frozen configurations unsupported"); | |
424 | ExitStat = EX_USAGE; | |
425 | break; | |
426 | #endif | |
427 | ||
75f95954 | 428 | default: |
b2d4b27a | 429 | usrerr("Invalid operation mode %c", j); |
2e15a2d8 | 430 | ExitStat = EX_USAGE; |
75f95954 | 431 | break; |
c1e24818 EA |
432 | } |
433 | break; | |
434 | ||
560a80d9 | 435 | case 'C': /* select configuration file (already done) */ |
94bc039a EA |
436 | if (getuid() != 0) |
437 | auth_warning(CurEnv, | |
438 | "Processed by %s with -C %s", | |
439 | realuser, optarg); | |
c1e24818 | 440 | break; |
a691a4a6 | 441 | |
43e0af62 | 442 | case 'd': /* debugging -- redo in case frozen */ |
c1e24818 | 443 | tTsetup(tTdvect, sizeof tTdvect, "0-99.1"); |
b2d4b27a | 444 | tTflag(optarg); |
c1e24818 | 445 | setbuf(stdout, (char *) NULL); |
c1e24818 | 446 | break; |
b3cbe40f | 447 | |
b3cbe40f | 448 | case 'f': /* from address */ |
c1e24818 | 449 | case 'r': /* obsolete -f flag */ |
22659072 | 450 | if (from != NULL) |
b3cbe40f | 451 | { |
2e15a2d8 MK |
452 | usrerr("More than one \"from\" person"); |
453 | ExitStat = EX_USAGE; | |
b3cbe40f EA |
454 | break; |
455 | } | |
b2d4b27a | 456 | from = newstr(optarg); |
94bc039a EA |
457 | auth_warning(CurEnv, |
458 | "%s set sender to %s using -%c", | |
459 | realuser, from, j); | |
b3cbe40f EA |
460 | break; |
461 | ||
6da7b890 | 462 | case 'F': /* set full name */ |
b2d4b27a | 463 | FullName = newstr(optarg); |
6da7b890 EA |
464 | break; |
465 | ||
b3cbe40f | 466 | case 'h': /* hop count */ |
b2d4b27a KB |
467 | CurEnv->e_hopcount = strtol(optarg, &ep, 10); |
468 | if (*ep) | |
b3cbe40f | 469 | { |
b2d4b27a | 470 | usrerr("Bad hop count (%s)", optarg); |
2e15a2d8 | 471 | ExitStat = EX_USAGE; |
3110074f | 472 | break; |
b3cbe40f | 473 | } |
b3cbe40f | 474 | break; |
b3cbe40f | 475 | |
c1e24818 EA |
476 | case 'n': /* don't alias */ |
477 | NoAlias = TRUE; | |
d59b067a EA |
478 | break; |
479 | ||
c1e24818 | 480 | case 'o': /* set option */ |
8c8e8e94 | 481 | setoption(*optarg, optarg + 1, FALSE, TRUE, CurEnv); |
14a39063 | 482 | break; |
cbdb7357 | 483 | |
b1e36c23 | 484 | case 'p': /* set protocol */ |
b2d4b27a | 485 | q = strchr(optarg, ':'); |
af04f6e4 EA |
486 | if (q != NULL) |
487 | *q++ = '\0'; | |
b2d4b27a KB |
488 | if (*optarg != '\0') |
489 | define('r', newstr(optarg), CurEnv); | |
5d41b806 | 490 | if (q != NULL && *q != '\0') |
af04f6e4 | 491 | define('s', newstr(q), CurEnv); |
b1e36c23 EA |
492 | break; |
493 | ||
ed45aae1 | 494 | case 'q': /* run queue files at intervals */ |
884a20cb | 495 | # ifdef QUEUE |
908dc8db | 496 | (void) unsetenv("HOSTALIASES"); |
d0a69620 | 497 | FullName = NULL; |
aba51985 | 498 | queuemode = TRUE; |
d6c28d1a EA |
499 | switch (optarg[0]) |
500 | { | |
501 | case 'I': | |
502 | QueueLimitId = newstr(&optarg[1]); | |
503 | break; | |
504 | ||
505 | case 'R': | |
506 | QueueLimitRecipient = newstr(&optarg[1]); | |
507 | break; | |
508 | ||
509 | case 'S': | |
510 | QueueLimitSender = newstr(&optarg[1]); | |
511 | break; | |
512 | ||
513 | default: | |
1d136a1f | 514 | QueueIntvl = convtime(optarg, 'm'); |
d6c28d1a EA |
515 | break; |
516 | } | |
f3d8f6d6 | 517 | # else /* QUEUE */ |
2e15a2d8 MK |
518 | usrerr("I don't know about queues"); |
519 | ExitStat = EX_USAGE; | |
f3d8f6d6 | 520 | # endif /* QUEUE */ |
ed45aae1 EA |
521 | break; |
522 | ||
c1e24818 EA |
523 | case 't': /* read recipients from message */ |
524 | GrabTo = TRUE; | |
525 | break; | |
526 | ||
527 | /* compatibility flags */ | |
c1e24818 | 528 | case 'c': /* connect to non-local mailers */ |
c1e24818 EA |
529 | case 'i': /* don't let dot stop me */ |
530 | case 'm': /* send to me too */ | |
531 | case 'T': /* set timeout interval */ | |
532 | case 'v': /* give blow-by-blow description */ | |
8c8e8e94 | 533 | setoption(j, "T", FALSE, TRUE, CurEnv); |
35cc3fad EA |
534 | break; |
535 | ||
5b80e275 | 536 | case 'e': /* error message disposition */ |
8c8e8e94 | 537 | setoption(j, optarg, FALSE, TRUE, CurEnv); |
5b80e275 EA |
538 | break; |
539 | ||
c1e24818 | 540 | case 's': /* save From lines in headers */ |
8c8e8e94 | 541 | setoption('f', "T", FALSE, TRUE, CurEnv); |
b3cbe40f | 542 | break; |
26a3626c EA |
543 | |
544 | # ifdef DBM | |
545 | case 'I': /* initialize alias DBM file */ | |
75f95954 | 546 | OpMode = MD_INITALIAS; |
26a3626c | 547 | break; |
ce46a48a EA |
548 | # endif /* DBM */ |
549 | ||
94bc039a | 550 | # ifdef __osf__ |
97030b8b EA |
551 | case 'x': /* random flag that DEC OSF/1 mailx passes */ |
552 | break; | |
553 | # endif | |
554 | ||
b2d4b27a KB |
555 | default: |
556 | ExitStat = EX_USAGE; | |
557 | finis(); | |
ce46a48a | 558 | break; |
b3cbe40f | 559 | } |
f96fa7de | 560 | } |
b2d4b27a | 561 | av += optind; |
b3cbe40f | 562 | |
836a1487 | 563 | #ifdef NAMED_BIND |
322eceee | 564 | if (tTd(8, 8)) |
836a1487 EA |
565 | _res.options |= RES_DEBUG; |
566 | #endif | |
567 | ||
9e3c0a28 | 568 | /* |
2cce0c26 EA |
569 | ** Do basic initialization. |
570 | ** Read system control file. | |
179c1218 | 571 | ** Extract special fields for local use. |
9e3c0a28 EA |
572 | */ |
573 | ||
46f6ec52 | 574 | if (OpMode == MD_FREEZE || readconfig) |
a4076aed | 575 | readcf(ConfFile, safecf, CurEnv); |
22659072 | 576 | |
07c63e56 | 577 | #ifdef SYS5TZ |
ca4d0c0b EA |
578 | /* Enforce use of local time (null string overrides this) */ |
579 | if (TimeZoneSpec == NULL) | |
580 | unsetenv("TZ"); | |
581 | else if (TimeZoneSpec[0] != '\0') | |
582 | { | |
583 | p = xalloc(strlen(TimeZoneSpec) + 4); | |
584 | (void) strcpy(p, "TZ="); | |
585 | (void) strcat(p, TimeZoneSpec); | |
586 | putenv(p); | |
587 | } | |
588 | #endif | |
589 | ||
2281a453 EA |
590 | if (ConfigLevel > MAXCONFIGLEVEL) |
591 | { | |
592 | syserr("Warning: .cf version level (%d) exceeds program functionality (%d)", | |
593 | ConfigLevel, MAXCONFIGLEVEL); | |
594 | } | |
322eceee EA |
595 | # ifdef QUEUE |
596 | if (queuemode && getuid() != 0) | |
597 | { | |
598 | struct stat stbuf; | |
599 | ||
600 | /* check to see if we own the queue directory */ | |
601 | if (stat(QueueDir, &stbuf) < 0) | |
602 | syserr("main: cannot stat %s", QueueDir); | |
603 | if (stbuf.st_uid != getuid()) | |
604 | { | |
605 | /* nope, really a botch */ | |
606 | usrerr("Permission denied"); | |
607 | exit (EX_NOPERM); | |
608 | } | |
609 | } | |
610 | # endif /* QUEUE */ | |
3fb35974 | 611 | |
75f95954 | 612 | switch (OpMode) |
acae5a9d | 613 | { |
ca708b8e | 614 | # ifdef FROZENCONFIG |
26a3626c | 615 | case MD_FREEZE: |
a9621daf | 616 | /* this is critical to avoid forgeries of the frozen config */ |
0e306e7f EA |
617 | (void) setgid(getgid()); |
618 | (void) setuid(getuid()); | |
a9621daf EA |
619 | |
620 | /* freeze the configuration */ | |
8fe4fb9b | 621 | freeze(FreezeFile); |
acae5a9d | 622 | exit(EX_OK); |
ca708b8e | 623 | # endif |
26a3626c EA |
624 | |
625 | case MD_INITALIAS: | |
626 | Verbose = TRUE; | |
627 | break; | |
13dfebea EA |
628 | |
629 | case MD_DAEMON: | |
630 | /* remove things that don't make sense in daemon mode */ | |
631 | FullName = NULL; | |
632 | break; | |
3fb35974 | 633 | |
94bc039a EA |
634 | case MD_SMTP: |
635 | if (RealUid != 0) | |
636 | auth_warning(CurEnv, | |
637 | "%s owned process doing -bs", | |
638 | realuser); | |
639 | break; | |
640 | } | |
3fb35974 | 641 | |
6130649c EA |
642 | /* do heuristic mode adjustment */ |
643 | if (Verbose) | |
75f95954 EA |
644 | { |
645 | /* turn off noconnect option */ | |
8c8e8e94 | 646 | setoption('c', "F", TRUE, FALSE, CurEnv); |
75f95954 EA |
647 | |
648 | /* turn on interactive delivery */ | |
8c8e8e94 | 649 | setoption('d', "", TRUE, FALSE, CurEnv); |
75f95954 | 650 | } |
6130649c | 651 | |
179c1218 | 652 | /* our name for SMTP codes */ |
63323725 | 653 | expand("\201j", jbuf, &jbuf[sizeof jbuf - 1], CurEnv); |
57c97d4a | 654 | MyHostName = jbuf; |
d6a28dd8 | 655 | |
98e5062b | 656 | /* the indices of built-in mailers */ |
179c1218 EA |
657 | st = stab("local", ST_MAILER, ST_FIND); |
658 | if (st == NULL) | |
659 | syserr("No local mailer defined"); | |
660 | else | |
661 | LocalMailer = st->s_mailer; | |
98e5062b | 662 | |
179c1218 EA |
663 | st = stab("prog", ST_MAILER, ST_FIND); |
664 | if (st == NULL) | |
665 | syserr("No prog mailer defined"); | |
666 | else | |
667 | ProgMailer = st->s_mailer; | |
668 | ||
98e5062b EA |
669 | st = stab("*file*", ST_MAILER, ST_FIND); |
670 | if (st == NULL) | |
671 | syserr("No *file* mailer defined"); | |
672 | else | |
673 | FileMailer = st->s_mailer; | |
674 | ||
675 | st = stab("*include*", ST_MAILER, ST_FIND); | |
676 | if (st == NULL) | |
677 | syserr("No *include* mailer defined"); | |
678 | else | |
679 | InclMailer = st->s_mailer; | |
680 | ||
681 | ||
6bbaf971 EA |
682 | /* operate in queue directory */ |
683 | if (chdir(QueueDir) < 0) | |
684 | { | |
685 | syserr("cannot chdir(%s)", QueueDir); | |
686 | exit(EX_SOFTWARE); | |
687 | } | |
688 | ||
876fc43b EA |
689 | /* if we've had errors so far, exit now */ |
690 | if (ExitStat != EX_OK) | |
691 | exit(ExitStat); | |
692 | ||
64912e7e | 693 | /* |
55f0da62 | 694 | ** Do operation-mode-dependent initialization. |
64912e7e EA |
695 | */ |
696 | ||
55f0da62 | 697 | switch (OpMode) |
64912e7e | 698 | { |
55f0da62 EA |
699 | case MD_PRINT: |
700 | /* print the queue */ | |
74f37936 | 701 | #ifdef QUEUE |
64912e7e EA |
702 | dropenvelope(CurEnv); |
703 | printqueue(); | |
704 | exit(EX_OK); | |
f3d8f6d6 | 705 | #else /* QUEUE */ |
74f37936 EA |
706 | usrerr("No queue to print"); |
707 | finis(); | |
f3d8f6d6 | 708 | #endif /* QUEUE */ |
8acb5142 | 709 | |
55f0da62 EA |
710 | case MD_INITALIAS: |
711 | /* initialize alias database */ | |
a4076aed | 712 | initaliases(AliasFile, TRUE, CurEnv); |
f4dbf345 | 713 | exit(EX_OK); |
cdb17311 | 714 | |
55f0da62 EA |
715 | case MD_DAEMON: |
716 | /* don't open alias database -- done in srvrsmtp */ | |
717 | break; | |
718 | ||
719 | default: | |
720 | /* open the alias database */ | |
a4076aed | 721 | initaliases(AliasFile, FALSE, CurEnv); |
55f0da62 EA |
722 | break; |
723 | } | |
724 | ||
9678c96d | 725 | if (tTd(0, 15)) |
9c6d4c70 | 726 | { |
f6a0cc15 | 727 | /* print configuration table (or at least part of it) */ |
9c6d4c70 EA |
728 | printrules(); |
729 | for (i = 0; i < MAXMAILERS; i++) | |
730 | { | |
731 | register struct mailer *m = Mailer[i]; | |
1dbda134 | 732 | int j; |
9c6d4c70 EA |
733 | |
734 | if (m == NULL) | |
735 | continue; | |
68f7099c EA |
736 | printf("mailer %d (%s): P=%s S=%d/%d R=%d/%d M=%ld F=", i, m->m_name, |
737 | m->m_mailer, m->m_se_rwset, m->m_sh_rwset, | |
738 | m->m_re_rwset, m->m_rh_rwset, m->m_maxsize); | |
1dbda134 EA |
739 | for (j = '\0'; j <= '\177'; j++) |
740 | if (bitnset(j, m->m_flags)) | |
0e306e7f | 741 | (void) putchar(j); |
1dbda134 | 742 | printf(" E="); |
b3ef02a2 | 743 | xputs(m->m_eol); |
72f91c2e EA |
744 | if (m->m_argv != NULL) |
745 | { | |
746 | char **a = m->m_argv; | |
747 | ||
748 | printf(" A="); | |
749 | while (*a != NULL) | |
750 | { | |
751 | if (a != m->m_argv) | |
752 | printf(" "); | |
753 | xputs(*a++); | |
754 | } | |
755 | } | |
b3ef02a2 | 756 | printf("\n"); |
9c6d4c70 EA |
757 | } |
758 | } | |
9c6d4c70 | 759 | |
be2fcca9 EA |
760 | /* |
761 | ** Switch to the main envelope. | |
762 | */ | |
763 | ||
fda58daa | 764 | CurEnv = newenvelope(&MainEnvelope, CurEnv); |
e6f08ab1 | 765 | MainEnvelope.e_flags = BlankEnvelope.e_flags; |
be2fcca9 | 766 | |
cf69a203 EA |
767 | /* |
768 | ** If test mode, read addresses from stdin and process. | |
769 | */ | |
770 | ||
75f95954 | 771 | if (OpMode == MD_TEST) |
cf69a203 EA |
772 | { |
773 | char buf[MAXLINE]; | |
774 | ||
6ae7224f EA |
775 | if (isatty(fileno(stdin))) |
776 | Verbose = TRUE; | |
777 | ||
778 | if (Verbose) | |
dab2b390 EA |
779 | { |
780 | printf("ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)\n"); | |
781 | printf("Enter <ruleset> <address>\n"); | |
782 | } | |
cf69a203 EA |
783 | for (;;) |
784 | { | |
785 | register char **pvp; | |
50435450 | 786 | char *q; |
9e2cf26f | 787 | auto char *delimptr; |
2ee7e9e0 | 788 | extern bool invalidaddr(); |
cf69a203 | 789 | |
6ae7224f | 790 | if (Verbose) |
dab2b390 | 791 | printf("> "); |
0e306e7f | 792 | (void) fflush(stdout); |
cf69a203 EA |
793 | if (fgets(buf, sizeof buf, stdin) == NULL) |
794 | finis(); | |
6ae7224f | 795 | if (!Verbose) |
dab2b390 EA |
796 | printf("> %s", buf); |
797 | if (buf[0] == '#') | |
798 | continue; | |
2bee003d | 799 | for (p = buf; isascii(*p) && isspace(*p); p++) |
cf69a203 | 800 | continue; |
ecfd2c8e | 801 | q = p; |
2bee003d | 802 | while (*p != '\0' && !(isascii(*p) && isspace(*p))) |
ecfd2c8e | 803 | p++; |
cf69a203 | 804 | if (*p == '\0') |
2ee7e9e0 EA |
805 | { |
806 | printf("No address!\n"); | |
cf69a203 | 807 | continue; |
2ee7e9e0 | 808 | } |
50435450 | 809 | *p = '\0'; |
2ee7e9e0 | 810 | if (invalidaddr(p + 1)) |
2ee7e9e0 | 811 | continue; |
50435450 | 812 | do |
ecfd2c8e | 813 | { |
217a0102 EA |
814 | extern char **prescan(); |
815 | char pvpbuf[PSBUFSIZE]; | |
816 | ||
9e2cf26f | 817 | pvp = prescan(++p, ',', pvpbuf, &delimptr); |
50435450 | 818 | if (pvp == NULL) |
ecfd2c8e | 819 | continue; |
50435450 EA |
820 | p = q; |
821 | while (*p != '\0') | |
822 | { | |
823 | rewrite(pvp, atoi(p)); | |
824 | while (*p != '\0' && *p++ != ',') | |
825 | continue; | |
826 | } | |
9e2cf26f | 827 | } while (*(p = delimptr) != '\0'); |
cf69a203 EA |
828 | } |
829 | } | |
830 | ||
e3cd595c EA |
831 | # ifdef QUEUE |
832 | /* | |
833 | ** If collecting stuff from the queue, go start doing that. | |
834 | */ | |
835 | ||
7b21425b | 836 | if (queuemode && OpMode != MD_DAEMON && QueueIntvl == 0) |
e3cd595c | 837 | { |
ca4d0c0b | 838 | runqueue(FALSE); |
e3cd595c EA |
839 | finis(); |
840 | } | |
f3d8f6d6 | 841 | # endif /* QUEUE */ |
e3cd595c | 842 | |
f6a0cc15 EA |
843 | /* |
844 | ** If a daemon, wait for a request. | |
845 | ** getrequests will always return in a child. | |
25b9d645 | 846 | ** If we should also be processing the queue, start |
19147b2d EA |
847 | ** doing it in background. |
848 | ** We check for any errors that might have happened | |
849 | ** during startup. | |
f6a0cc15 EA |
850 | */ |
851 | ||
75f95954 | 852 | if (OpMode == MD_DAEMON || QueueIntvl != 0) |
25b9d645 | 853 | { |
d0421a85 EA |
854 | char dtype[200]; |
855 | ||
9678c96d | 856 | if (!tTd(0, 1)) |
58b27aa4 | 857 | { |
fcdf8200 | 858 | /* put us in background */ |
58b27aa4 EA |
859 | i = fork(); |
860 | if (i < 0) | |
861 | syserr("daemon: cannot fork"); | |
862 | if (i != 0) | |
863 | exit(0); | |
fcdf8200 | 864 | |
fcdf8200 | 865 | /* disconnect from our controlling tty */ |
58edf3ec | 866 | disconnect(TRUE, CurEnv); |
58b27aa4 | 867 | } |
7338e3d4 | 868 | |
d0421a85 EA |
869 | dtype[0] = '\0'; |
870 | if (OpMode == MD_DAEMON) | |
871 | strcat(dtype, "+SMTP"); | |
872 | if (QueueIntvl != 0) | |
873 | { | |
874 | extern char *pintvl(); | |
875 | ||
876 | strcat(dtype, "+queueing@"); | |
877 | strcat(dtype, pintvl(QueueIntvl, TRUE)); | |
878 | } | |
879 | if (tTd(0, 1)) | |
880 | strcat(dtype, "+debugging"); | |
881 | ||
6d791734 | 882 | syslog(LOG_INFO, "starting daemon: %s", dtype + 1); |
d0421a85 | 883 | |
25b9d645 EA |
884 | # ifdef QUEUE |
885 | if (queuemode) | |
f309127e | 886 | { |
ca4d0c0b | 887 | runqueue(TRUE); |
75f95954 | 888 | if (OpMode != MD_DAEMON) |
f309127e EA |
889 | for (;;) |
890 | pause(); | |
891 | } | |
f3d8f6d6 | 892 | # endif /* QUEUE */ |
7338e3d4 EA |
893 | dropenvelope(CurEnv); |
894 | ||
895 | #ifdef DAEMON | |
f6a0cc15 | 896 | getrequests(); |
2a16bae3 EA |
897 | |
898 | /* at this point we are in a child: reset state */ | |
75f95954 | 899 | OpMode = MD_SMTP; |
fda58daa | 900 | (void) newenvelope(CurEnv, CurEnv); |
f3d8f6d6 | 901 | #endif /* DAEMON */ |
7338e3d4 | 902 | } |
88039044 EA |
903 | |
904 | # ifdef SMTP | |
905 | /* | |
906 | ** If running SMTP protocol, start collecting and executing | |
907 | ** commands. This will never return. | |
908 | */ | |
909 | ||
75f95954 | 910 | if (OpMode == MD_SMTP) |
a4076aed | 911 | smtp(CurEnv); |
f3d8f6d6 | 912 | # endif /* SMTP */ |
88039044 | 913 | |
f6a0cc15 | 914 | /* |
e6f08ab1 | 915 | ** Do basic system initialization and set the sender |
f6a0cc15 EA |
916 | */ |
917 | ||
f8a31c8e | 918 | # ifndef SYSTEM5 |
6f910017 EA |
919 | /* make sendmail immune from process group signals */ |
920 | (void) setpgrp(0, getpid()); | |
f8a31c8e | 921 | # endif |
6f910017 | 922 | |
a4076aed | 923 | initsys(CurEnv); |
4a2da288 | 924 | setsender(from, CurEnv, NULL, FALSE); |
a9e0e597 | 925 | |
0e1aa71e | 926 | if (*av == NULL && !GrabTo) |
e863b1fa | 927 | { |
2e3062fe EA |
928 | usrerr("Recipient names must be specified"); |
929 | ||
930 | /* collect body for UUCP return */ | |
931 | if (OpMode != MD_VERIFY) | |
a4076aed | 932 | collect(FALSE, CurEnv); |
e863b1fa EA |
933 | finis(); |
934 | } | |
75f95954 | 935 | if (OpMode == MD_VERIFY) |
8c8e8e94 | 936 | CurEnv->e_sendmode = SM_VERIFY; |
b3cbe40f | 937 | |
b3cbe40f | 938 | /* |
d6b27179 | 939 | ** Scan argv and deliver the message to everyone. |
b3cbe40f EA |
940 | */ |
941 | ||
a4076aed | 942 | sendtoargv(av, CurEnv); |
b3cbe40f | 943 | |
72e9b3cc | 944 | /* if we have had errors sofar, arrange a meaningful exit stat */ |
d916f0ca | 945 | if (Errors > 0 && ExitStat == EX_OK) |
a4b004a6 | 946 | ExitStat = EX_USAGE; |
a4b004a6 | 947 | |
dc39c568 EA |
948 | /* |
949 | ** Read the input mail. | |
950 | */ | |
951 | ||
2654b031 | 952 | CurEnv->e_to = NULL; |
75f95954 | 953 | if (OpMode != MD_VERIFY || GrabTo) |
a4076aed | 954 | collect(FALSE, CurEnv); |
d829793b | 955 | errno = 0; |
35cc3fad | 956 | |
4e1f4d4b | 957 | /* collect statistics */ |
7338e3d4 EA |
958 | if (OpMode != MD_VERIFY) |
959 | markstats(CurEnv, (ADDRESS *) NULL); | |
b3cbe40f | 960 | |
9678c96d | 961 | if (tTd(1, 1)) |
2654b031 | 962 | printf("From person = \"%s\"\n", CurEnv->e_from.q_paddr); |
d6b27179 | 963 | |
b3cbe40f EA |
964 | /* |
965 | ** Actually send everything. | |
d6b27179 | 966 | ** If verifying, just ack. |
b3cbe40f EA |
967 | */ |
968 | ||
7338e3d4 | 969 | CurEnv->e_from.q_flags |= QDONTSEND; |
78bbbc48 EA |
970 | if (tTd(1, 5)) |
971 | { | |
972 | printf("main: QDONTSEND "); | |
973 | printaddr(&CurEnv->e_from, FALSE); | |
974 | } | |
7338e3d4 | 975 | CurEnv->e_to = NULL; |
f7e74083 | 976 | sendall(CurEnv, SM_DEFAULT); |
b3cbe40f EA |
977 | |
978 | /* | |
979 | ** All done. | |
980 | */ | |
981 | ||
982 | finis(); | |
983 | } | |
984 | \f/* | |
985 | ** FINIS -- Clean up and exit. | |
986 | ** | |
b3cbe40f EA |
987 | ** Parameters: |
988 | ** none | |
989 | ** | |
990 | ** Returns: | |
991 | ** never | |
992 | ** | |
993 | ** Side Effects: | |
96faada8 | 994 | ** exits sendmail |
b3cbe40f EA |
995 | */ |
996 | ||
997 | finis() | |
998 | { | |
9678c96d | 999 | if (tTd(2, 1)) |
e6f08ab1 | 1000 | printf("\n====finis: stat %d e_flags %o\n", ExitStat, CurEnv->e_flags); |
aba51985 | 1001 | |
7338e3d4 | 1002 | /* clean up temp files */ |
912acb74 | 1003 | CurEnv->e_to = NULL; |
e6f08ab1 | 1004 | dropenvelope(CurEnv); |
b3cbe40f | 1005 | |
f2e44ded | 1006 | /* flush any cached connections */ |
1c7897ef | 1007 | mci_flush(TRUE, NULL); |
f2e44ded | 1008 | |
7338e3d4 EA |
1009 | /* post statistics */ |
1010 | poststats(StatFile); | |
68f0b54c | 1011 | |
7338e3d4 | 1012 | /* and exit */ |
36a4e219 | 1013 | # ifdef LOG |
68f7099c | 1014 | if (LogLevel > 78) |
36a4e219 | 1015 | syslog(LOG_DEBUG, "finis, pid=%d", getpid()); |
f3d8f6d6 | 1016 | # endif /* LOG */ |
c8ec8736 EA |
1017 | if (ExitStat == EX_TEMPFAIL) |
1018 | ExitStat = EX_OK; | |
b3cbe40f EA |
1019 | exit(ExitStat); |
1020 | } | |
1021 | \f/* | |
6e2f38be EA |
1022 | ** INTSIG -- clean up on interrupt |
1023 | ** | |
7338e3d4 EA |
1024 | ** This just arranges to exit. It pessimises in that it |
1025 | ** may resend a message. | |
6e2f38be EA |
1026 | ** |
1027 | ** Parameters: | |
1028 | ** none. | |
1029 | ** | |
1030 | ** Returns: | |
1031 | ** none. | |
1032 | ** | |
1033 | ** Side Effects: | |
7338e3d4 | 1034 | ** Unlocks the current job. |
6e2f38be EA |
1035 | */ |
1036 | ||
0df908a9 | 1037 | void |
6e2f38be EA |
1038 | intsig() |
1039 | { | |
7338e3d4 EA |
1040 | FileName = NULL; |
1041 | unlockqueue(CurEnv); | |
1042 | exit(EX_OK); | |
6e2f38be EA |
1043 | } |
1044 | \f/* | |
721fad23 EA |
1045 | ** INITMACROS -- initialize the macro system |
1046 | ** | |
1047 | ** This just involves defining some macros that are actually | |
1048 | ** used internally as metasymbols to be themselves. | |
1049 | ** | |
1050 | ** Parameters: | |
1051 | ** none. | |
1052 | ** | |
1053 | ** Returns: | |
1054 | ** none. | |
1055 | ** | |
1056 | ** Side Effects: | |
1057 | ** initializes several macros to be themselves. | |
1058 | */ | |
1059 | ||
9dbc8d99 EA |
1060 | struct metamac MetaMacros[] = |
1061 | { | |
eca244ca | 1062 | /* LHS pattern matching characters */ |
42fa5d67 EA |
1063 | '*', MATCHZANY, '+', MATCHANY, '-', MATCHONE, |
1064 | '=', MATCHCLASS, '~', MATCHNCLASS, | |
721fad23 EA |
1065 | |
1066 | /* these are RHS metasymbols */ | |
42fa5d67 EA |
1067 | '#', CANONNET, '@', CANONHOST, ':', CANONUSER, |
1068 | '>', CALLSUBR, | |
41173b8f | 1069 | '{', MATCHLOOKUP, '}', MATCHELOOKUP, |
721fad23 | 1070 | |
eca244ca | 1071 | /* the conditional operations */ |
42fa5d67 | 1072 | '?', CONDIF, '|', CONDELSE, '.', CONDFI, |
9dbc8d99 | 1073 | |
eca244ca | 1074 | /* and finally the hostname lookup characters */ |
42fa5d67 EA |
1075 | '[', HOSTBEGIN, ']', HOSTEND, |
1076 | '(', LOOKUPBEGIN, ')', LOOKUPEND, | |
eca244ca | 1077 | |
9dbc8d99 | 1078 | '\0' |
721fad23 EA |
1079 | }; |
1080 | ||
1081 | initmacros() | |
1082 | { | |
9dbc8d99 EA |
1083 | register struct metamac *m; |
1084 | char buf[5]; | |
1085 | register int c; | |
721fad23 | 1086 | |
9dbc8d99 EA |
1087 | for (m = MetaMacros; m->metaname != '\0'; m++) |
1088 | { | |
1089 | buf[0] = m->metaval; | |
1090 | buf[1] = '\0'; | |
7338e3d4 | 1091 | define(m->metaname, newstr(buf), CurEnv); |
9dbc8d99 EA |
1092 | } |
1093 | buf[0] = MATCHREPL; | |
1094 | buf[2] = '\0'; | |
1095 | for (c = '0'; c <= '9'; c++) | |
1096 | { | |
1097 | buf[1] = c; | |
7338e3d4 | 1098 | define(c, newstr(buf), CurEnv); |
9dbc8d99 | 1099 | } |
721fad23 | 1100 | } |
dd1fe05b | 1101 | \f/* |
acae5a9d EA |
1102 | ** FREEZE -- freeze BSS & allocated memory |
1103 | ** | |
1104 | ** This will be used to efficiently load the configuration file. | |
1105 | ** | |
1106 | ** Parameters: | |
8fe4fb9b | 1107 | ** freezefile -- the name of the file to freeze to. |
acae5a9d EA |
1108 | ** |
1109 | ** Returns: | |
1110 | ** none. | |
1111 | ** | |
1112 | ** Side Effects: | |
8fe4fb9b | 1113 | ** Writes BSS and malloc'ed memory to freezefile |
acae5a9d EA |
1114 | */ |
1115 | ||
ca708b8e EA |
1116 | # ifdef FROZENCONFIG |
1117 | ||
7338e3d4 | 1118 | union frz |
acae5a9d | 1119 | { |
7338e3d4 EA |
1120 | char frzpad[BUFSIZ]; /* insure we are on a BUFSIZ boundary */ |
1121 | struct | |
1122 | { | |
1123 | time_t frzstamp; /* timestamp on this freeze */ | |
1124 | char *frzbrk; /* the current break */ | |
2e3062fe EA |
1125 | char *frzedata; /* address of edata */ |
1126 | char *frzend; /* address of end */ | |
7338e3d4 EA |
1127 | char frzver[252]; /* sendmail version */ |
1128 | } frzinfo; | |
acae5a9d EA |
1129 | }; |
1130 | ||
97030b8b | 1131 | #if defined(__hpux) || defined(__alpha) |
aa102c71 EA |
1132 | #define BRK_TYPE int |
1133 | #define SBRK_TYPE void * | |
1134 | #else | |
1135 | #define BRK_TYPE char * | |
1136 | #define SBRK_TYPE char * | |
1137 | #endif | |
1138 | ||
8fe4fb9b EA |
1139 | freeze(freezefile) |
1140 | char *freezefile; | |
acae5a9d EA |
1141 | { |
1142 | int f; | |
7338e3d4 | 1143 | union frz fhdr; |
aa102c71 | 1144 | extern SBRK_TYPE sbrk(); |
2e3062fe | 1145 | extern char edata, end; |
912acb74 | 1146 | extern char Version[]; |
acae5a9d | 1147 | |
8fe4fb9b | 1148 | if (freezefile == NULL) |
acae5a9d EA |
1149 | return; |
1150 | ||
1151 | /* try to open the freeze file */ | |
8fe4fb9b | 1152 | f = creat(freezefile, FileMode); |
acae5a9d EA |
1153 | if (f < 0) |
1154 | { | |
2e15a2d8 | 1155 | syserr("Cannot freeze %s", freezefile); |
acae5a9d EA |
1156 | errno = 0; |
1157 | return; | |
1158 | } | |
1159 | ||
1160 | /* build the freeze header */ | |
7338e3d4 EA |
1161 | fhdr.frzinfo.frzstamp = curtime(); |
1162 | fhdr.frzinfo.frzbrk = sbrk(0); | |
2e3062fe EA |
1163 | fhdr.frzinfo.frzedata = &edata; |
1164 | fhdr.frzinfo.frzend = &end; | |
0e306e7f | 1165 | (void) strcpy(fhdr.frzinfo.frzver, Version); |
acae5a9d EA |
1166 | |
1167 | /* write out the freeze header */ | |
611b763d | 1168 | if (write(f, (char *) &fhdr, sizeof fhdr) != sizeof fhdr || |
34fe0a9b EA |
1169 | write(f, (char *) &edata, (int) (fhdr.frzinfo.frzbrk - &edata)) != |
1170 | (int) (fhdr.frzinfo.frzbrk - &edata)) | |
7338e3d4 | 1171 | { |
2e15a2d8 | 1172 | syserr("Cannot freeze %s", freezefile); |
7338e3d4 | 1173 | } |
acae5a9d EA |
1174 | |
1175 | /* fine, clean up */ | |
1176 | (void) close(f); | |
1177 | } | |
1178 | \f/* | |
1179 | ** THAW -- read in the frozen configuration file. | |
1180 | ** | |
1181 | ** Parameters: | |
8fe4fb9b | 1182 | ** freezefile -- the name of the file to thaw from. |
4b26318e | 1183 | ** binfile -- the name of the sendmail binary (ok to guess). |
acae5a9d EA |
1184 | ** |
1185 | ** Returns: | |
1186 | ** TRUE if it successfully read the freeze file. | |
1187 | ** FALSE otherwise. | |
1188 | ** | |
1189 | ** Side Effects: | |
8fe4fb9b | 1190 | ** reads freezefile in to BSS area. |
acae5a9d EA |
1191 | */ |
1192 | ||
4b26318e | 1193 | thaw(freezefile, binfile) |
8fe4fb9b | 1194 | char *freezefile; |
4b26318e | 1195 | char *binfile; |
acae5a9d EA |
1196 | { |
1197 | int f; | |
ccfed53c | 1198 | register char *p; |
7338e3d4 | 1199 | union frz fhdr; |
ccfed53c | 1200 | char hbuf[60]; |
4b26318e | 1201 | struct stat fst, sst; |
a59237a4 | 1202 | extern char edata, end; |
912acb74 | 1203 | extern char Version[]; |
ccfed53c EA |
1204 | extern char **myhostname(); |
1205 | extern char *macvalue(); | |
aa102c71 | 1206 | extern BRK_TYPE brk(); |
acae5a9d | 1207 | |
8fe4fb9b | 1208 | if (freezefile == NULL) |
acae5a9d EA |
1209 | return (FALSE); |
1210 | ||
1211 | /* open the freeze file */ | |
8fe4fb9b | 1212 | f = open(freezefile, 0); |
acae5a9d EA |
1213 | if (f < 0) |
1214 | { | |
1215 | errno = 0; | |
1216 | return (FALSE); | |
1217 | } | |
1218 | ||
4b26318e EA |
1219 | if (fstat(f, &fst) < 0 || stat(ConfFile, &sst) < 0 || |
1220 | fst.st_mtime < sst.st_mtime) | |
1221 | { | |
1222 | syslog(LOG_WARNING, "Freeze file older than config file"); | |
1223 | (void) close(f); | |
1224 | return (FALSE); | |
1225 | } | |
1226 | ||
1227 | if (strchr(binfile, '/') != NULL && stat(binfile, &sst) == 0 && | |
1228 | fst.st_mtime < sst.st_mtime) | |
1229 | { | |
1230 | syslog(LOG_WARNING, "Freeze file older than binary file"); | |
1231 | (void) close(f); | |
1232 | return (FALSE); | |
1233 | } | |
1234 | ||
acae5a9d | 1235 | /* read in the header */ |
07adc4f5 RA |
1236 | if (read(f, (char *) &fhdr, sizeof fhdr) < sizeof fhdr) |
1237 | { | |
db281fbf | 1238 | syslog(LOG_WARNING, "Cannot read frozen config file"); |
07adc4f5 RA |
1239 | (void) close(f); |
1240 | return (FALSE); | |
1241 | } | |
db281fbf | 1242 | if (fhdr.frzinfo.frzedata != &edata || |
2e3062fe | 1243 | fhdr.frzinfo.frzend != &end || |
7338e3d4 | 1244 | strcmp(fhdr.frzinfo.frzver, Version) != 0) |
acae5a9d | 1245 | { |
1d136a1f | 1246 | fprintf(stderr, "Wrong version of frozen config file\n"); |
07adc4f5 | 1247 | syslog(LOG_WARNING, "Wrong version of frozen config file"); |
acae5a9d EA |
1248 | (void) close(f); |
1249 | return (FALSE); | |
1250 | } | |
1251 | ||
1252 | /* arrange to have enough space */ | |
97030b8b | 1253 | if (brk(fhdr.frzinfo.frzbrk) == (BRK_TYPE) -1) |
acae5a9d | 1254 | { |
7338e3d4 | 1255 | syserr("Cannot break to %x", fhdr.frzinfo.frzbrk); |
acae5a9d EA |
1256 | (void) close(f); |
1257 | return (FALSE); | |
1258 | } | |
1259 | ||
1260 | /* now read in the freeze file */ | |
34fe0a9b EA |
1261 | if (read(f, (char *) &edata, (int) (fhdr.frzinfo.frzbrk - &edata)) != |
1262 | (int) (fhdr.frzinfo.frzbrk - &edata)) | |
acae5a9d | 1263 | { |
07adc4f5 | 1264 | syserr("Cannot read frozen config file"); |
acae5a9d | 1265 | /* oops! we have trashed memory..... */ |
0e306e7f | 1266 | (void) write(2, "Cannot read freeze file\n", 24); |
7338e3d4 | 1267 | _exit(EX_SOFTWARE); |
acae5a9d EA |
1268 | } |
1269 | ||
1270 | (void) close(f); | |
ccfed53c EA |
1271 | |
1272 | /* verify that the host name was correct on the freeze */ | |
1273 | (void) myhostname(hbuf, sizeof hbuf); | |
1274 | p = macvalue('w', CurEnv); | |
1275 | if (p == NULL) | |
1276 | p = ""; | |
1277 | if (strcmp(hbuf, macvalue('w', CurEnv)) == 0) | |
1278 | return (TRUE); | |
1279 | syslog(LOG_WARNING, "Hostname changed since freeze (%s => %s)", | |
1280 | p, hbuf); | |
1281 | return (FALSE); | |
acae5a9d | 1282 | } |
ca708b8e EA |
1283 | |
1284 | # endif /* FROZENCONFIG */ | |
813d8709 EA |
1285 | \f/* |
1286 | ** DISCONNECT -- remove our connection with any foreground process | |
1287 | ** | |
1288 | ** Parameters: | |
d188728a EA |
1289 | ** fulldrop -- if set, we should also drop the controlling |
1290 | ** TTY if possible -- this should only be done when | |
1291 | ** setting up the daemon since otherwise UUCP can | |
1292 | ** leave us trying to open a dialin, and we will | |
1293 | ** wait for the carrier. | |
813d8709 EA |
1294 | ** |
1295 | ** Returns: | |
1296 | ** none | |
1297 | ** | |
1298 | ** Side Effects: | |
1299 | ** Trys to insure that we are immune to vagaries of | |
1300 | ** the controlling tty. | |
1301 | */ | |
1302 | ||
58edf3ec | 1303 | disconnect(fulldrop, e) |
d188728a | 1304 | bool fulldrop; |
58edf3ec | 1305 | register ENVELOPE *e; |
813d8709 EA |
1306 | { |
1307 | int fd; | |
1308 | ||
e6f08ab1 | 1309 | if (tTd(52, 1)) |
58edf3ec EA |
1310 | printf("disconnect: In %d Out %d, e=%x\n", |
1311 | fileno(InChannel), fileno(OutChannel), e); | |
e6f08ab1 | 1312 | if (tTd(52, 5)) |
813d8709 | 1313 | { |
e6f08ab1 EA |
1314 | printf("don't\n"); |
1315 | return; | |
813d8709 | 1316 | } |
813d8709 EA |
1317 | |
1318 | /* be sure we don't get nasty signals */ | |
0e306e7f EA |
1319 | (void) signal(SIGHUP, SIG_IGN); |
1320 | (void) signal(SIGINT, SIG_IGN); | |
1321 | (void) signal(SIGQUIT, SIG_IGN); | |
813d8709 EA |
1322 | |
1323 | /* we can't communicate with our caller, so.... */ | |
7338e3d4 | 1324 | HoldErrs = TRUE; |
8c8e8e94 | 1325 | CurEnv->e_errormode = EM_MAIL; |
813d8709 EA |
1326 | Verbose = FALSE; |
1327 | ||
1328 | /* all input from /dev/null */ | |
813d8709 | 1329 | if (InChannel != stdin) |
b9accadd EA |
1330 | { |
1331 | (void) fclose(InChannel); | |
1332 | InChannel = stdin; | |
1333 | } | |
1334 | (void) freopen("/dev/null", "r", stdin); | |
813d8709 EA |
1335 | |
1336 | /* output to the transcript */ | |
b9accadd | 1337 | if (OutChannel != stdout) |
813d8709 | 1338 | { |
b9accadd EA |
1339 | (void) fclose(OutChannel); |
1340 | OutChannel = stdout; | |
813d8709 | 1341 | } |
58edf3ec EA |
1342 | if (e->e_xfp == NULL) |
1343 | fd = open("/dev/null", O_WRONLY, 0666); | |
1344 | else | |
1345 | fd = fileno(e->e_xfp); | |
b9accadd | 1346 | (void) fflush(stdout); |
58edf3ec EA |
1347 | dup2(fd, STDOUT_FILENO); |
1348 | dup2(fd, STDERR_FILENO); | |
1349 | if (e->e_xfp == NULL) | |
1350 | close(fd); | |
813d8709 | 1351 | |
e6f08ab1 | 1352 | /* drop our controlling TTY completely if possible */ |
d188728a | 1353 | if (fulldrop) |
e6f08ab1 | 1354 | { |
6feb509e EA |
1355 | #ifdef SYSTEM5 |
1356 | (void) setpgrp(); | |
1357 | #else | |
5229f34d | 1358 | (void) setsid(); |
6feb509e | 1359 | #endif |
afe907a4 | 1360 | #ifdef TIOCNOTTY |
d188728a EA |
1361 | fd = open("/dev/tty", 2); |
1362 | if (fd >= 0) | |
1363 | { | |
17a67c62 | 1364 | (void) ioctl(fd, (int) TIOCNOTTY, (char *) 0); |
d188728a EA |
1365 | (void) close(fd); |
1366 | } | |
17a67c62 | 1367 | (void) setpgrp(0, 0); |
afe907a4 | 1368 | #endif /* TIOCNOTTY */ |
70faa7c8 | 1369 | errno = 0; |
e6f08ab1 | 1370 | } |
e6f08ab1 | 1371 | |
813d8709 | 1372 | # ifdef LOG |
68f7099c | 1373 | if (LogLevel > 71) |
813d8709 | 1374 | syslog(LOG_DEBUG, "in background, pid=%d", getpid()); |
f3d8f6d6 | 1375 | # endif /* LOG */ |
813d8709 EA |
1376 | |
1377 | errno = 0; | |
1378 | } | |
b2d4b27a KB |
1379 | |
1380 | static void | |
1381 | obsolete(argv) | |
1382 | char *argv[]; | |
1383 | { | |
1384 | char *ap; | |
1385 | ||
1386 | while (ap = *++argv) | |
1387 | { | |
1388 | /* Return if "--" or not an option of any form. */ | |
1389 | if (ap[0] != '-' || ap[1] == '-') | |
1390 | return; | |
1391 | ||
1392 | /* If -C doesn't have an argument, use sendmail.cf. */ | |
1393 | #define __DEFPATH "sendmail.cf" | |
f96fa7de EA |
1394 | if (ap[1] == 'C' && ap[2] == '\0' && |
1395 | (argv[1] == NULL || argv[1][0] == '-')) | |
b2d4b27a KB |
1396 | { |
1397 | *argv = xalloc(sizeof(__DEFPATH) + 2); | |
1398 | argv[0][0] = '-'; | |
1399 | argv[0][1] = 'C'; | |
1400 | (void)strcpy(&argv[0][2], __DEFPATH); | |
1401 | } | |
f96fa7de EA |
1402 | |
1403 | /* If -q doesn't have an argument, run it once. */ | |
1404 | if (ap[1] == 'q' && ap[2] == '\0' && | |
1405 | (argv[1] == NULL || argv[1][0] == '-')) | |
1406 | *argv = "-q0"; | |
a0431b8d EA |
1407 | |
1408 | /* if -d doesn't have an argument, use 0-99.1 */ | |
1409 | if (ap[1] == 'd' && ap[2] == '\0' && | |
1410 | (argv[1] == NULL || argv[1][0] == '-')) | |
1411 | *argv = "-d0-99.1"; | |
b2d4b27a KB |
1412 | } |
1413 | } | |
94bc039a EA |
1414 | \f/* |
1415 | ** AUTH_WARNING -- specify authorization warning | |
1416 | ** | |
1417 | ** Parameters: | |
1418 | ** e -- the current envelope. | |
1419 | ** msg -- the text of the message. | |
1420 | ** args -- arguments to the message. | |
1421 | ** | |
1422 | ** Returns: | |
1423 | ** none. | |
1424 | */ | |
1425 | ||
94bc039a | 1426 | void |
319b1ec0 | 1427 | #ifdef __STDC__ |
94bc039a EA |
1428 | auth_warning(register ENVELOPE *e, char *msg, ...) |
1429 | #else | |
1430 | auth_warning(e, msg, va_alist) | |
1431 | register ENVELOPE *e; | |
1432 | char *msg; | |
1433 | va_dcl | |
1434 | #endif | |
1435 | { | |
1436 | char buf[MAXLINE]; | |
1437 | VA_LOCAL_DECL | |
1438 | ||
1439 | if (bitset(PRIV_AUTHWARNINGS, PrivacyFlags)) | |
1440 | { | |
1441 | register char *p; | |
1442 | static char hostbuf[48]; | |
1443 | extern char **myhostname(); | |
1444 | ||
1445 | if (hostbuf[0] == '\0') | |
1446 | (void) myhostname(hostbuf, sizeof hostbuf); | |
1447 | ||
1448 | (void) sprintf(buf, "from %s: ", hostbuf); | |
1449 | p = &buf[strlen(buf)]; | |
1450 | VA_START(msg); | |
1451 | vsprintf(p, msg, ap); | |
1452 | VA_END; | |
1453 | addheader("x-authentication-warning", buf, e); | |
1454 | } | |
1455 | } |