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 | |
8657d05f | 16 | static char sccsid[] = "@(#)main.c 5.42 (Berkeley) %G%"; |
bee79b64 | 17 | #endif /* not lint */ |
aeb2545d | 18 | |
137c2d1f KB |
19 | #define _DEFINE |
20 | ||
afe907a4 | 21 | #include <sys/param.h> |
5bec1980 | 22 | #include <sys/file.h> |
137c2d1f KB |
23 | #include <signal.h> |
24 | #include <sgtty.h> | |
25 | #include "sendmail.h" | |
26 | #include <arpa/nameser.h> | |
27 | #include <resolv.h> | |
b3cbe40f | 28 | |
17a67c62 | 29 | # ifdef lint |
2e3062fe | 30 | char edata, end; |
17a67c62 EA |
31 | # endif lint |
32 | ||
b3cbe40f | 33 | /* |
96faada8 | 34 | ** SENDMAIL -- Post mail to a set of destinations. |
b3cbe40f EA |
35 | ** |
36 | ** This is the basic mail router. All user mail programs should | |
96faada8 | 37 | ** call this routine to actually deliver mail. Sendmail in |
b3cbe40f EA |
38 | ** turn calls a bunch of mail servers that do the real work of |
39 | ** delivering the mail. | |
40 | ** | |
3199e4f3 EA |
41 | ** Sendmail is driven by tables read in from /usr/lib/sendmail.cf |
42 | ** (read by readcf.c). Some more static configuration info, | |
43 | ** including some code that you may want to tailor for your | |
44 | ** installation, is in conf.c. You may also want to touch | |
45 | ** daemon.c (if you have some other IPC mechanism), acct.c | |
46 | ** (to change your accounting), names.c (to adjust the name | |
47 | ** server mechanism). | |
b3cbe40f EA |
48 | ** |
49 | ** Usage: | |
7338e3d4 | 50 | ** /usr/lib/sendmail [flags] addr ... |
b3cbe40f | 51 | ** |
7338e3d4 | 52 | ** See the associated documentation for details. |
b3cbe40f | 53 | ** |
b3cbe40f | 54 | ** Author: |
7338e3d4 EA |
55 | ** Eric Allman, UCB/INGRES (until 10/81) |
56 | ** Britton-Lee, Inc., purveyors of fine | |
57 | ** database computers (from 11/81) | |
ce46a48a | 58 | ** Now back at UCB at the Mammoth project. |
7338e3d4 EA |
59 | ** The support of the INGRES Project and Britton-Lee is |
60 | ** gratefully acknowledged. Britton-Lee in | |
61 | ** particular had absolutely nothing to gain from | |
62 | ** my involvement in this project. | |
b3cbe40f EA |
63 | */ |
64 | ||
65 | ||
83f674d8 | 66 | int NextMailer; /* "free" index into Mailer struct */ |
912acb74 | 67 | char *FullName; /* sender's full name */ |
be2fcca9 | 68 | ENVELOPE BlankEnvelope; /* a "blank" envelope */ |
2654b031 | 69 | ENVELOPE MainEnvelope; /* the envelope around the basic letter */ |
2e3062fe | 70 | ADDRESS NullAddress = /* a null address */ |
599d88d0 | 71 | { "", "", NULL, "" }; |
2e3062fe EA |
72 | |
73 | /* | |
74 | ** Pointers for setproctitle. | |
75 | ** This allows "ps" listings to give more useful information. | |
76 | ** These must be kept out of BSS for frozen configuration files | |
77 | ** to work. | |
78 | */ | |
79 | ||
80 | # ifdef SETPROCTITLE | |
81 | char **Argv = NULL; /* pointer to argument vector */ | |
82 | char *LastArgv = NULL; /* end of argv */ | |
83 | # endif SETPROCTITLE | |
b3cbe40f | 84 | |
ce46a48a EA |
85 | /* |
86 | ** The file in which to log raw recipient information. | |
87 | ** This is logged before aliasing, forwarding, and so forth so we | |
88 | ** can see how our addresses are being used. For example, this | |
89 | ** would give us the names of aliases (instead of what they alias | |
90 | ** to), the pre-MX hostnames, and so forth. | |
91 | ** | |
92 | ** This is specified on the command line, not in the config file, | |
93 | ** and is therefore really only useful for logging SMTP RCPTs. | |
94 | */ | |
95 | ||
96 | char *RcptLogFile = NULL; /* file name */ | |
97 | ||
4aebfe5d EA |
98 | #ifdef DAEMON |
99 | #ifndef SMTP | |
100 | ERROR %%%% Cannot have daemon mode without SMTP %%%% ERROR | |
101 | #endif SMTP | |
102 | #endif DAEMON | |
103 | ||
e36705df | 104 | main(argc, argv, envp) |
b3cbe40f EA |
105 | int argc; |
106 | char **argv; | |
e36705df | 107 | char **envp; |
b3cbe40f EA |
108 | { |
109 | register char *p; | |
acae5a9d | 110 | char **av; |
17df0fcb | 111 | char *locname; |
b3cbe40f | 112 | extern int finis(); |
b3cbe40f | 113 | extern char Version[]; |
b3cbe40f | 114 | char *from; |
b3cbe40f | 115 | typedef int (*fnptr)(); |
be2fcca9 | 116 | STAB *st; |
9e3c0a28 | 117 | register int i; |
4388720d | 118 | bool readconfig = TRUE; |
aba51985 | 119 | bool queuemode = FALSE; /* process queue requests */ |
43e0af62 | 120 | bool nothaw; |
be2fcca9 | 121 | static bool reenter = FALSE; |
ccfed53c | 122 | char jbuf[60]; /* holds MyHostName */ |
f6a0cc15 | 123 | extern bool safefile(); |
ed45aae1 | 124 | extern time_t convtime(); |
dd1fe05b | 125 | extern putheader(), putbody(); |
be2fcca9 | 126 | extern ENVELOPE *newenvelope(); |
0df908a9 | 127 | extern void intsig(); |
1dbda134 | 128 | extern char **myhostname(); |
22e6d6b8 | 129 | extern char *arpadate(); |
e36705df | 130 | extern char **environ; |
b72377c6 | 131 | |
22659072 EA |
132 | /* |
133 | ** Check to see if we reentered. | |
134 | ** This would normally happen if e_putheader or e_putbody | |
135 | ** were NULL when invoked. | |
136 | */ | |
137 | ||
b72377c6 EA |
138 | if (reenter) |
139 | { | |
140 | syserr("main: reentered!"); | |
141 | abort(); | |
142 | } | |
143 | reenter = TRUE; | |
abae7b2d | 144 | extern ADDRESS *recipient(); |
17df0fcb | 145 | bool canrename; |
b3cbe40f | 146 | |
8657d05f EA |
147 | /* Enforce use of local time (null string overrides this) */ |
148 | if (TimeZoneSpec == NULL) | |
149 | unsetenv("TZ"); | |
150 | else if (TimeZoneSpec[0] != '\0') | |
151 | setenv("TZ", TimeZoneSpec); | |
60c0b7b2 | 152 | |
d15bd559 EA |
153 | /* |
154 | ** Be sure we have enough file descriptors. | |
59b65d0f | 155 | ** But also be sure that 0, 1, & 2 are open. |
d15bd559 EA |
156 | */ |
157 | ||
e1098041 | 158 | i = open("/dev/null", O_RDWR); |
59b65d0f EA |
159 | while (i >= 0 && i < 2) |
160 | i = dup(i); | |
e1098041 | 161 | for (i = getdtablesize(); i > 2; --i) |
d15bd559 EA |
162 | (void) close(i); |
163 | errno = 0; | |
164 | ||
07adc4f5 RA |
165 | #ifdef LOG_MAIL |
166 | openlog("sendmail", LOG_PID, LOG_MAIL); | |
167 | #else | |
168 | openlog("sendmail", LOG_PID); | |
169 | #endif | |
170 | ||
8ff78b51 EA |
171 | /* |
172 | ** Set default values for variables. | |
173 | ** These cannot be in initialized data space. | |
174 | */ | |
175 | ||
176 | setdefaults(); | |
177 | ||
bb09c502 EA |
178 | /* set up the blank envelope */ |
179 | BlankEnvelope.e_puthdr = putheader; | |
180 | BlankEnvelope.e_putbody = putbody; | |
181 | BlankEnvelope.e_xfp = NULL; | |
2e3062fe | 182 | STRUCTCOPY(NullAddress, BlankEnvelope.e_from); |
bd575ea9 EA |
183 | STRUCTCOPY(BlankEnvelope, MainEnvelope); |
184 | CurEnv = &MainEnvelope; | |
bb09c502 | 185 | |
22659072 EA |
186 | /* |
187 | ** Do a quick prescan of the argument list. | |
188 | ** We do this to find out if we can potentially thaw the | |
189 | ** configuration file. If not, we do the thaw now so that | |
190 | ** the argument processing applies to this run rather than | |
191 | ** to the run that froze the configuration. | |
192 | */ | |
193 | ||
d6b27179 | 194 | argv[argc] = NULL; |
22659072 | 195 | av = argv; |
43e0af62 | 196 | nothaw = FALSE; |
560a80d9 | 197 | while ((p = *++av) != NULL) |
22659072 | 198 | { |
560a80d9 EA |
199 | if (strncmp(p, "-C", 2) == 0) |
200 | { | |
201 | ConfFile = &p[2]; | |
202 | if (ConfFile[0] == '\0') | |
203 | ConfFile = "sendmail.cf"; | |
0e306e7f EA |
204 | (void) setgid(getrgid()); |
205 | (void) setuid(getruid()); | |
43e0af62 | 206 | nothaw = TRUE; |
560a80d9 EA |
207 | } |
208 | else if (strncmp(p, "-bz", 3) == 0) | |
43e0af62 | 209 | nothaw = TRUE; |
43e0af62 EA |
210 | else if (strncmp(p, "-d", 2) == 0) |
211 | { | |
212 | tTsetup(tTdvect, sizeof tTdvect, "0-99.1"); | |
213 | tTflag(&p[2]); | |
214 | setbuf(stdout, (char *) NULL); | |
215 | printf("Version %s\n", Version); | |
216 | } | |
22659072 | 217 | } |
2bc15c4e KB |
218 | |
219 | InChannel = stdin; | |
220 | OutChannel = stdout; | |
221 | ||
43e0af62 | 222 | if (!nothaw) |
22659072 EA |
223 | readconfig = !thaw(FreezeFile); |
224 | ||
e36705df | 225 | /* reset the environment after the thaw */ |
42bbf376 EA |
226 | for (i = 0; i < MAXUSERENVIRON && envp[i] != NULL; i++) |
227 | UserEnviron[i] = newstr(envp[i]); | |
228 | UserEnviron[i] = NULL; | |
229 | environ = UserEnviron; | |
230 | ||
231 | # ifdef SETPROCTITLE | |
232 | /* | |
233 | ** Save start and extent of argv for setproctitle. | |
234 | */ | |
235 | ||
236 | Argv = argv; | |
577bce94 EA |
237 | if (i > 0) |
238 | LastArgv = envp[i - 1] + strlen(envp[i - 1]); | |
239 | else | |
240 | LastArgv = argv[argc - 1] + strlen(argv[argc - 1]); | |
42bbf376 | 241 | # endif SETPROCTITLE |
e36705df | 242 | |
b3cbe40f | 243 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) |
6e2f38be | 244 | (void) signal(SIGINT, intsig); |
eb211e2c | 245 | if (signal(SIGHUP, SIG_IGN) != SIG_IGN) |
6e2f38be EA |
246 | (void) signal(SIGHUP, intsig); |
247 | (void) signal(SIGTERM, intsig); | |
ed7382d3 | 248 | (void) signal(SIGPIPE, SIG_IGN); |
a0554f81 | 249 | OldUmask = umask(0); |
75f95954 | 250 | OpMode = MD_DELIVER; |
e673aad7 | 251 | MotherPid = getpid(); |
561c7c50 | 252 | FullName = getenv("NAME"); |
dd1fe05b | 253 | |
b3cbe40f EA |
254 | errno = 0; |
255 | from = NULL; | |
378e8da7 | 256 | |
4388720d | 257 | if (readconfig) |
1dbda134 | 258 | { |
4388720d EA |
259 | /* initialize some macros, etc. */ |
260 | initmacros(); | |
261 | ||
262 | /* hostname */ | |
263 | av = myhostname(jbuf, sizeof jbuf); | |
264 | if (jbuf[0] != '\0') | |
265 | { | |
dec0d30e EA |
266 | register char *q; |
267 | extern char *strchr(); | |
268 | ||
43e0af62 EA |
269 | if (tTd(0, 4)) |
270 | printf("canonical name: %s\n", jbuf); | |
4388720d EA |
271 | p = newstr(jbuf); |
272 | define('w', p, CurEnv); | |
dec0d30e EA |
273 | |
274 | q = strchr(jbuf, '.'); | |
275 | if (q != NULL) | |
276 | { | |
1bc035b0 | 277 | *q++ = '\0'; |
dec0d30e | 278 | p = newstr(jbuf); |
1bc035b0 | 279 | define('m', q, CurEnv); |
dec0d30e | 280 | } |
4388720d EA |
281 | setclass('w', p); |
282 | } | |
283 | while (av != NULL && *av != NULL) | |
43e0af62 | 284 | { |
43e0af62 EA |
285 | if (tTd(0, 4)) |
286 | printf("\ta.k.a.: %s\n", *av); | |
4388720d | 287 | setclass('w', *av++); |
43e0af62 | 288 | } |
4388720d EA |
289 | |
290 | /* version */ | |
291 | define('v', Version, CurEnv); | |
1dbda134 | 292 | } |
378e8da7 EA |
293 | |
294 | /* current time */ | |
22e6d6b8 | 295 | define('b', arpadate((char *) NULL), CurEnv); |
378e8da7 | 296 | |
a691a4a6 | 297 | /* |
c1e24818 | 298 | ** Crack argv. |
a691a4a6 EA |
299 | */ |
300 | ||
acae5a9d | 301 | av = argv; |
26a3626c EA |
302 | p = rindex(*av, '/'); |
303 | if (p++ == NULL) | |
304 | p = *av; | |
305 | if (strcmp(p, "newaliases") == 0) | |
75f95954 | 306 | OpMode = MD_INITALIAS; |
26a3626c | 307 | else if (strcmp(p, "mailq") == 0) |
75f95954 | 308 | OpMode = MD_PRINT; |
34fe0a9b EA |
309 | else if (strcmp(p, "smtpd") == 0) |
310 | OpMode = MD_DAEMON; | |
3110074f | 311 | while ((p = *++av) != NULL && p[0] == '-') |
a691a4a6 | 312 | { |
c1e24818 | 313 | switch (p[1]) |
a691a4a6 | 314 | { |
75f95954 EA |
315 | case 'b': /* operations mode */ |
316 | switch (p[2]) | |
c1e24818 | 317 | { |
75f95954 | 318 | case MD_DAEMON: |
908dc8db MK |
319 | # ifdef DAEMON |
320 | if (getuid() != 0) { | |
321 | usrerr("Permission denied"); | |
322 | exit (EX_USAGE); | |
323 | } | |
324 | (void) unsetenv("HOSTALIASES"); | |
325 | # else | |
2e15a2d8 MK |
326 | usrerr("Daemon mode not implemented"); |
327 | ExitStat = EX_USAGE; | |
75f95954 EA |
328 | break; |
329 | # endif DAEMON | |
330 | case MD_SMTP: | |
331 | # ifndef SMTP | |
2e15a2d8 MK |
332 | usrerr("I don't speak SMTP"); |
333 | ExitStat = EX_USAGE; | |
75f95954 | 334 | break; |
c1e24818 | 335 | # endif SMTP |
75f95954 EA |
336 | case MD_ARPAFTP: |
337 | case MD_DELIVER: | |
338 | case MD_VERIFY: | |
339 | case MD_TEST: | |
340 | case MD_INITALIAS: | |
341 | case MD_PRINT: | |
342 | case MD_FREEZE: | |
343 | OpMode = p[2]; | |
344 | break; | |
345 | ||
346 | default: | |
2e15a2d8 MK |
347 | usrerr("Invalid operation mode %c", p[2]); |
348 | ExitStat = EX_USAGE; | |
75f95954 | 349 | break; |
c1e24818 EA |
350 | } |
351 | break; | |
352 | ||
560a80d9 | 353 | case 'C': /* select configuration file (already done) */ |
c1e24818 | 354 | break; |
a691a4a6 | 355 | |
43e0af62 | 356 | case 'd': /* debugging -- redo in case frozen */ |
c1e24818 EA |
357 | tTsetup(tTdvect, sizeof tTdvect, "0-99.1"); |
358 | tTflag(&p[2]); | |
359 | setbuf(stdout, (char *) NULL); | |
c1e24818 | 360 | break; |
b3cbe40f | 361 | |
b3cbe40f | 362 | case 'f': /* from address */ |
c1e24818 | 363 | case 'r': /* obsolete -f flag */ |
b3cbe40f | 364 | p += 2; |
3110074f | 365 | if (*p == '\0' && ((p = *++av) == NULL || *p == '-')) |
b3cbe40f | 366 | { |
acae5a9d | 367 | p = *++av; |
3110074f | 368 | if (p == NULL || *p == '-') |
b3cbe40f | 369 | { |
2e15a2d8 MK |
370 | usrerr("No \"from\" person"); |
371 | ExitStat = EX_USAGE; | |
acae5a9d | 372 | av--; |
b3cbe40f EA |
373 | break; |
374 | } | |
375 | } | |
22659072 | 376 | if (from != NULL) |
b3cbe40f | 377 | { |
2e15a2d8 MK |
378 | usrerr("More than one \"from\" person"); |
379 | ExitStat = EX_USAGE; | |
b3cbe40f EA |
380 | break; |
381 | } | |
2e3062fe | 382 | from = newstr(p); |
b3cbe40f EA |
383 | break; |
384 | ||
6da7b890 | 385 | case 'F': /* set full name */ |
74c5fe7c | 386 | p += 2; |
3110074f | 387 | if (*p == '\0' && ((p = *++av) == NULL || *p == '-')) |
74c5fe7c | 388 | { |
2e15a2d8 MK |
389 | usrerr("Bad -F flag"); |
390 | ExitStat = EX_USAGE; | |
3110074f EA |
391 | av--; |
392 | break; | |
74c5fe7c | 393 | } |
2e3062fe | 394 | FullName = newstr(p); |
6da7b890 EA |
395 | break; |
396 | ||
b3cbe40f EA |
397 | case 'h': /* hop count */ |
398 | p += 2; | |
3110074f | 399 | if (*p == '\0' && ((p = *++av) == NULL || !isdigit(*p))) |
b3cbe40f | 400 | { |
2e15a2d8 MK |
401 | usrerr("Bad hop count (%s)", p); |
402 | ExitStat = EX_USAGE; | |
3110074f EA |
403 | av--; |
404 | break; | |
b3cbe40f | 405 | } |
7338e3d4 | 406 | CurEnv->e_hopcount = atoi(p); |
b3cbe40f | 407 | break; |
b3cbe40f | 408 | |
c1e24818 EA |
409 | case 'n': /* don't alias */ |
410 | NoAlias = TRUE; | |
d59b067a EA |
411 | break; |
412 | ||
c1e24818 EA |
413 | case 'o': /* set option */ |
414 | setoption(p[2], &p[3], FALSE, TRUE); | |
14a39063 | 415 | break; |
cbdb7357 | 416 | |
ed45aae1 | 417 | case 'q': /* run queue files at intervals */ |
884a20cb | 418 | # ifdef QUEUE |
908dc8db MK |
419 | if (getuid() != 0) { |
420 | usrerr("Permission denied"); | |
421 | exit (EX_USAGE); | |
422 | } | |
423 | (void) unsetenv("HOSTALIASES"); | |
aba51985 | 424 | queuemode = TRUE; |
25b9d645 | 425 | QueueIntvl = convtime(&p[2]); |
884a20cb | 426 | # else QUEUE |
2e15a2d8 MK |
427 | usrerr("I don't know about queues"); |
428 | ExitStat = EX_USAGE; | |
884a20cb | 429 | # endif QUEUE |
ed45aae1 EA |
430 | break; |
431 | ||
c1e24818 EA |
432 | case 't': /* read recipients from message */ |
433 | GrabTo = TRUE; | |
434 | break; | |
435 | ||
436 | /* compatibility flags */ | |
c1e24818 EA |
437 | case 'c': /* connect to non-local mailers */ |
438 | case 'e': /* error message disposition */ | |
439 | case 'i': /* don't let dot stop me */ | |
440 | case 'm': /* send to me too */ | |
441 | case 'T': /* set timeout interval */ | |
442 | case 'v': /* give blow-by-blow description */ | |
443 | setoption(p[1], &p[2], FALSE, TRUE); | |
35cc3fad EA |
444 | break; |
445 | ||
c1e24818 EA |
446 | case 's': /* save From lines in headers */ |
447 | setoption('f', &p[2], FALSE, TRUE); | |
b3cbe40f | 448 | break; |
26a3626c EA |
449 | |
450 | # ifdef DBM | |
451 | case 'I': /* initialize alias DBM file */ | |
75f95954 | 452 | OpMode = MD_INITALIAS; |
26a3626c | 453 | break; |
ce46a48a EA |
454 | # endif /* DBM */ |
455 | ||
456 | case 'R': /* log raw recipient info */ | |
457 | p += 2; | |
458 | if (*p == '\0' && ((p = *++av) == NULL || *p == '-')) | |
459 | { | |
460 | usrerr("Bad -R flag"); | |
461 | ExitStat = EX_USAGE; | |
462 | av--; | |
463 | break; | |
464 | } | |
465 | RcptLogFile = newstr(p); | |
466 | break; | |
b3cbe40f EA |
467 | } |
468 | } | |
469 | ||
836a1487 EA |
470 | #ifdef NAMED_BIND |
471 | if (tTd(8, 1)) | |
472 | _res.options |= RES_DEBUG; | |
473 | #endif | |
474 | ||
9e3c0a28 | 475 | /* |
2cce0c26 EA |
476 | ** Do basic initialization. |
477 | ** Read system control file. | |
179c1218 | 478 | ** Extract special fields for local use. |
9e3c0a28 EA |
479 | */ |
480 | ||
46f6ec52 EA |
481 | if (OpMode == MD_FREEZE || readconfig) |
482 | readcf(ConfFile); | |
22659072 | 483 | |
75f95954 | 484 | switch (OpMode) |
acae5a9d | 485 | { |
26a3626c | 486 | case MD_FREEZE: |
a9621daf | 487 | /* this is critical to avoid forgeries of the frozen config */ |
0e306e7f EA |
488 | (void) setgid(getgid()); |
489 | (void) setuid(getuid()); | |
a9621daf EA |
490 | |
491 | /* freeze the configuration */ | |
8fe4fb9b | 492 | freeze(FreezeFile); |
acae5a9d | 493 | exit(EX_OK); |
26a3626c EA |
494 | |
495 | case MD_INITALIAS: | |
496 | Verbose = TRUE; | |
497 | break; | |
13dfebea EA |
498 | |
499 | case MD_DAEMON: | |
500 | /* remove things that don't make sense in daemon mode */ | |
501 | FullName = NULL; | |
502 | break; | |
acae5a9d | 503 | } |
179c1218 | 504 | |
6130649c EA |
505 | /* do heuristic mode adjustment */ |
506 | if (Verbose) | |
75f95954 EA |
507 | { |
508 | /* turn off noconnect option */ | |
509 | setoption('c', "F", TRUE, FALSE); | |
510 | ||
511 | /* turn on interactive delivery */ | |
512 | setoption('d', "", TRUE, FALSE); | |
513 | } | |
6130649c | 514 | |
179c1218 | 515 | /* our name for SMTP codes */ |
a73ae8ac | 516 | expand("\001j", jbuf, &jbuf[sizeof jbuf - 1], CurEnv); |
57c97d4a | 517 | MyHostName = jbuf; |
d6a28dd8 | 518 | |
179c1218 EA |
519 | /* the indices of local and program mailers */ |
520 | st = stab("local", ST_MAILER, ST_FIND); | |
521 | if (st == NULL) | |
522 | syserr("No local mailer defined"); | |
523 | else | |
524 | LocalMailer = st->s_mailer; | |
525 | st = stab("prog", ST_MAILER, ST_FIND); | |
526 | if (st == NULL) | |
527 | syserr("No prog mailer defined"); | |
528 | else | |
529 | ProgMailer = st->s_mailer; | |
530 | ||
6bbaf971 EA |
531 | /* operate in queue directory */ |
532 | if (chdir(QueueDir) < 0) | |
533 | { | |
534 | syserr("cannot chdir(%s)", QueueDir); | |
535 | exit(EX_SOFTWARE); | |
536 | } | |
537 | ||
64912e7e | 538 | /* |
55f0da62 | 539 | ** Do operation-mode-dependent initialization. |
64912e7e EA |
540 | */ |
541 | ||
55f0da62 | 542 | switch (OpMode) |
64912e7e | 543 | { |
55f0da62 EA |
544 | case MD_PRINT: |
545 | /* print the queue */ | |
74f37936 | 546 | #ifdef QUEUE |
64912e7e EA |
547 | dropenvelope(CurEnv); |
548 | printqueue(); | |
549 | exit(EX_OK); | |
74f37936 EA |
550 | #else QUEUE |
551 | usrerr("No queue to print"); | |
552 | finis(); | |
553 | #endif QUEUE | |
8acb5142 | 554 | |
55f0da62 EA |
555 | case MD_INITALIAS: |
556 | /* initialize alias database */ | |
557 | initaliases(AliasFile, TRUE); | |
f4dbf345 | 558 | exit(EX_OK); |
cdb17311 | 559 | |
55f0da62 EA |
560 | case MD_DAEMON: |
561 | /* don't open alias database -- done in srvrsmtp */ | |
562 | break; | |
563 | ||
564 | default: | |
565 | /* open the alias database */ | |
566 | initaliases(AliasFile, FALSE); | |
567 | break; | |
568 | } | |
569 | ||
9678c96d | 570 | if (tTd(0, 15)) |
9c6d4c70 | 571 | { |
f6a0cc15 | 572 | /* print configuration table (or at least part of it) */ |
9c6d4c70 EA |
573 | printrules(); |
574 | for (i = 0; i < MAXMAILERS; i++) | |
575 | { | |
576 | register struct mailer *m = Mailer[i]; | |
1dbda134 | 577 | int j; |
9c6d4c70 EA |
578 | |
579 | if (m == NULL) | |
580 | continue; | |
97ad25b6 EA |
581 | printf("mailer %d (%s): P=%s S=%d R=%d M=%ld F=", i, m->m_name, |
582 | m->m_mailer, m->m_s_rwset, m->m_r_rwset, | |
583 | m->m_maxsize); | |
1dbda134 EA |
584 | for (j = '\0'; j <= '\177'; j++) |
585 | if (bitnset(j, m->m_flags)) | |
0e306e7f | 586 | (void) putchar(j); |
1dbda134 | 587 | printf(" E="); |
b3ef02a2 EA |
588 | xputs(m->m_eol); |
589 | printf("\n"); | |
9c6d4c70 EA |
590 | } |
591 | } | |
9c6d4c70 | 592 | |
be2fcca9 EA |
593 | /* |
594 | ** Switch to the main envelope. | |
595 | */ | |
596 | ||
597 | CurEnv = newenvelope(&MainEnvelope); | |
e6f08ab1 | 598 | MainEnvelope.e_flags = BlankEnvelope.e_flags; |
be2fcca9 | 599 | |
cf69a203 EA |
600 | /* |
601 | ** If test mode, read addresses from stdin and process. | |
602 | */ | |
603 | ||
75f95954 | 604 | if (OpMode == MD_TEST) |
cf69a203 EA |
605 | { |
606 | char buf[MAXLINE]; | |
607 | ||
50435450 | 608 | printf("ADDRESS TEST MODE\nEnter <ruleset> <address>\n"); |
cf69a203 EA |
609 | for (;;) |
610 | { | |
611 | register char **pvp; | |
50435450 | 612 | char *q; |
50435450 | 613 | extern char *DelimChar; |
cf69a203 EA |
614 | |
615 | printf("> "); | |
0e306e7f | 616 | (void) fflush(stdout); |
cf69a203 EA |
617 | if (fgets(buf, sizeof buf, stdin) == NULL) |
618 | finis(); | |
f90b4150 | 619 | for (p = buf; isspace(*p); p++) |
cf69a203 | 620 | continue; |
ecfd2c8e EA |
621 | q = p; |
622 | while (*p != '\0' && !isspace(*p)) | |
623 | p++; | |
cf69a203 EA |
624 | if (*p == '\0') |
625 | continue; | |
50435450 EA |
626 | *p = '\0'; |
627 | do | |
ecfd2c8e | 628 | { |
217a0102 EA |
629 | extern char **prescan(); |
630 | char pvpbuf[PSBUFSIZE]; | |
631 | ||
632 | pvp = prescan(++p, ',', pvpbuf); | |
50435450 | 633 | if (pvp == NULL) |
ecfd2c8e | 634 | continue; |
50435450 EA |
635 | rewrite(pvp, 3); |
636 | p = q; | |
637 | while (*p != '\0') | |
638 | { | |
639 | rewrite(pvp, atoi(p)); | |
640 | while (*p != '\0' && *p++ != ',') | |
641 | continue; | |
642 | } | |
643 | } while (*(p = DelimChar) != '\0'); | |
cf69a203 EA |
644 | } |
645 | } | |
646 | ||
e3cd595c EA |
647 | # ifdef QUEUE |
648 | /* | |
649 | ** If collecting stuff from the queue, go start doing that. | |
650 | */ | |
651 | ||
7b21425b | 652 | if (queuemode && OpMode != MD_DAEMON && QueueIntvl == 0) |
e3cd595c EA |
653 | { |
654 | runqueue(FALSE); | |
655 | finis(); | |
656 | } | |
657 | # endif QUEUE | |
658 | ||
f6a0cc15 EA |
659 | /* |
660 | ** If a daemon, wait for a request. | |
661 | ** getrequests will always return in a child. | |
25b9d645 | 662 | ** If we should also be processing the queue, start |
19147b2d EA |
663 | ** doing it in background. |
664 | ** We check for any errors that might have happened | |
665 | ** during startup. | |
f6a0cc15 EA |
666 | */ |
667 | ||
75f95954 | 668 | if (OpMode == MD_DAEMON || QueueIntvl != 0) |
25b9d645 | 669 | { |
9678c96d | 670 | if (!tTd(0, 1)) |
58b27aa4 | 671 | { |
fcdf8200 | 672 | /* put us in background */ |
58b27aa4 EA |
673 | i = fork(); |
674 | if (i < 0) | |
675 | syserr("daemon: cannot fork"); | |
676 | if (i != 0) | |
677 | exit(0); | |
fcdf8200 EA |
678 | |
679 | /* get our pid right */ | |
d9162460 | 680 | MotherPid = getpid(); |
fcdf8200 EA |
681 | |
682 | /* disconnect from our controlling tty */ | |
d188728a | 683 | disconnect(TRUE); |
58b27aa4 | 684 | } |
7338e3d4 | 685 | |
25b9d645 EA |
686 | # ifdef QUEUE |
687 | if (queuemode) | |
f309127e | 688 | { |
25b9d645 | 689 | runqueue(TRUE); |
75f95954 | 690 | if (OpMode != MD_DAEMON) |
f309127e EA |
691 | for (;;) |
692 | pause(); | |
693 | } | |
25b9d645 | 694 | # endif QUEUE |
7338e3d4 EA |
695 | dropenvelope(CurEnv); |
696 | ||
697 | #ifdef DAEMON | |
f6a0cc15 | 698 | getrequests(); |
2a16bae3 EA |
699 | |
700 | /* at this point we are in a child: reset state */ | |
75f95954 | 701 | OpMode = MD_SMTP; |
7338e3d4 | 702 | (void) newenvelope(CurEnv); |
912acb74 | 703 | openxscript(CurEnv); |
14a39063 | 704 | #endif DAEMON |
7338e3d4 | 705 | } |
88039044 EA |
706 | |
707 | # ifdef SMTP | |
708 | /* | |
709 | ** If running SMTP protocol, start collecting and executing | |
710 | ** commands. This will never return. | |
711 | */ | |
712 | ||
75f95954 | 713 | if (OpMode == MD_SMTP) |
88039044 EA |
714 | smtp(); |
715 | # endif SMTP | |
716 | ||
f6a0cc15 | 717 | /* |
e6f08ab1 | 718 | ** Do basic system initialization and set the sender |
f6a0cc15 EA |
719 | */ |
720 | ||
e6f08ab1 | 721 | initsys(); |
cbdb7357 | 722 | setsender(from); |
a9e0e597 | 723 | |
3110074f | 724 | if (OpMode != MD_ARPAFTP && *av == NULL && !GrabTo) |
e863b1fa | 725 | { |
2e3062fe EA |
726 | usrerr("Recipient names must be specified"); |
727 | ||
728 | /* collect body for UUCP return */ | |
729 | if (OpMode != MD_VERIFY) | |
730 | collect(FALSE); | |
e863b1fa EA |
731 | finis(); |
732 | } | |
75f95954 EA |
733 | if (OpMode == MD_VERIFY) |
734 | SendMode = SM_VERIFY; | |
b3cbe40f | 735 | |
b3cbe40f | 736 | /* |
d6b27179 | 737 | ** Scan argv and deliver the message to everyone. |
b3cbe40f EA |
738 | */ |
739 | ||
acae5a9d | 740 | sendtoargv(av); |
b3cbe40f | 741 | |
72e9b3cc | 742 | /* if we have had errors sofar, arrange a meaningful exit stat */ |
d916f0ca | 743 | if (Errors > 0 && ExitStat == EX_OK) |
a4b004a6 | 744 | ExitStat = EX_USAGE; |
a4b004a6 | 745 | |
dc39c568 EA |
746 | /* |
747 | ** Read the input mail. | |
748 | */ | |
749 | ||
2654b031 | 750 | CurEnv->e_to = NULL; |
75f95954 | 751 | if (OpMode != MD_VERIFY || GrabTo) |
49086753 | 752 | collect(FALSE); |
d829793b | 753 | errno = 0; |
35cc3fad | 754 | |
4e1f4d4b | 755 | /* collect statistics */ |
7338e3d4 EA |
756 | if (OpMode != MD_VERIFY) |
757 | markstats(CurEnv, (ADDRESS *) NULL); | |
b3cbe40f | 758 | |
9678c96d | 759 | if (tTd(1, 1)) |
2654b031 | 760 | printf("From person = \"%s\"\n", CurEnv->e_from.q_paddr); |
d6b27179 | 761 | |
b3cbe40f EA |
762 | /* |
763 | ** Actually send everything. | |
d6b27179 | 764 | ** If verifying, just ack. |
b3cbe40f EA |
765 | */ |
766 | ||
7338e3d4 EA |
767 | CurEnv->e_from.q_flags |= QDONTSEND; |
768 | CurEnv->e_to = NULL; | |
f7e74083 | 769 | sendall(CurEnv, SM_DEFAULT); |
b3cbe40f EA |
770 | |
771 | /* | |
772 | ** All done. | |
773 | */ | |
774 | ||
775 | finis(); | |
776 | } | |
777 | \f/* | |
778 | ** FINIS -- Clean up and exit. | |
779 | ** | |
b3cbe40f EA |
780 | ** Parameters: |
781 | ** none | |
782 | ** | |
783 | ** Returns: | |
784 | ** never | |
785 | ** | |
786 | ** Side Effects: | |
96faada8 | 787 | ** exits sendmail |
b3cbe40f EA |
788 | */ |
789 | ||
790 | finis() | |
791 | { | |
9678c96d | 792 | if (tTd(2, 1)) |
e6f08ab1 | 793 | printf("\n====finis: stat %d e_flags %o\n", ExitStat, CurEnv->e_flags); |
aba51985 | 794 | |
7338e3d4 | 795 | /* clean up temp files */ |
912acb74 | 796 | CurEnv->e_to = NULL; |
e6f08ab1 | 797 | dropenvelope(CurEnv); |
b3cbe40f | 798 | |
7338e3d4 EA |
799 | /* post statistics */ |
800 | poststats(StatFile); | |
68f0b54c | 801 | |
7338e3d4 | 802 | /* and exit */ |
36a4e219 EA |
803 | # ifdef LOG |
804 | if (LogLevel > 11) | |
805 | syslog(LOG_DEBUG, "finis, pid=%d", getpid()); | |
806 | # endif LOG | |
c8ec8736 EA |
807 | if (ExitStat == EX_TEMPFAIL) |
808 | ExitStat = EX_OK; | |
b3cbe40f EA |
809 | exit(ExitStat); |
810 | } | |
811 | \f/* | |
6e2f38be EA |
812 | ** INTSIG -- clean up on interrupt |
813 | ** | |
7338e3d4 EA |
814 | ** This just arranges to exit. It pessimises in that it |
815 | ** may resend a message. | |
6e2f38be EA |
816 | ** |
817 | ** Parameters: | |
818 | ** none. | |
819 | ** | |
820 | ** Returns: | |
821 | ** none. | |
822 | ** | |
823 | ** Side Effects: | |
7338e3d4 | 824 | ** Unlocks the current job. |
6e2f38be EA |
825 | */ |
826 | ||
0df908a9 | 827 | void |
6e2f38be EA |
828 | intsig() |
829 | { | |
7338e3d4 EA |
830 | FileName = NULL; |
831 | unlockqueue(CurEnv); | |
832 | exit(EX_OK); | |
6e2f38be EA |
833 | } |
834 | \f/* | |
721fad23 EA |
835 | ** INITMACROS -- initialize the macro system |
836 | ** | |
837 | ** This just involves defining some macros that are actually | |
838 | ** used internally as metasymbols to be themselves. | |
839 | ** | |
840 | ** Parameters: | |
841 | ** none. | |
842 | ** | |
843 | ** Returns: | |
844 | ** none. | |
845 | ** | |
846 | ** Side Effects: | |
847 | ** initializes several macros to be themselves. | |
848 | */ | |
849 | ||
9dbc8d99 EA |
850 | struct metamac MetaMacros[] = |
851 | { | |
eca244ca | 852 | /* LHS pattern matching characters */ |
2018e82d | 853 | '*', MATCHZANY, '+', MATCHANY, '-', MATCHONE, '=', MATCHCLASS, |
9f39d7cd | 854 | '~', MATCHNCLASS, |
721fad23 EA |
855 | |
856 | /* these are RHS metasymbols */ | |
2018e82d | 857 | '#', CANONNET, '@', CANONHOST, ':', CANONUSER, '>', CALLSUBR, |
41173b8f | 858 | '{', MATCHLOOKUP, '}', MATCHELOOKUP, |
721fad23 | 859 | |
eca244ca | 860 | /* the conditional operations */ |
2018e82d | 861 | '?', CONDIF, '|', CONDELSE, '.', CONDFI, |
9dbc8d99 | 862 | |
eca244ca | 863 | /* and finally the hostname lookup characters */ |
217a0102 | 864 | '[', HOSTBEGIN, ']', HOSTEND, |
eca244ca | 865 | |
9dbc8d99 | 866 | '\0' |
721fad23 EA |
867 | }; |
868 | ||
869 | initmacros() | |
870 | { | |
9dbc8d99 EA |
871 | register struct metamac *m; |
872 | char buf[5]; | |
873 | register int c; | |
721fad23 | 874 | |
9dbc8d99 EA |
875 | for (m = MetaMacros; m->metaname != '\0'; m++) |
876 | { | |
877 | buf[0] = m->metaval; | |
878 | buf[1] = '\0'; | |
7338e3d4 | 879 | define(m->metaname, newstr(buf), CurEnv); |
9dbc8d99 EA |
880 | } |
881 | buf[0] = MATCHREPL; | |
882 | buf[2] = '\0'; | |
883 | for (c = '0'; c <= '9'; c++) | |
884 | { | |
885 | buf[1] = c; | |
7338e3d4 | 886 | define(c, newstr(buf), CurEnv); |
9dbc8d99 | 887 | } |
721fad23 | 888 | } |
dd1fe05b | 889 | \f/* |
acae5a9d EA |
890 | ** FREEZE -- freeze BSS & allocated memory |
891 | ** | |
892 | ** This will be used to efficiently load the configuration file. | |
893 | ** | |
894 | ** Parameters: | |
8fe4fb9b | 895 | ** freezefile -- the name of the file to freeze to. |
acae5a9d EA |
896 | ** |
897 | ** Returns: | |
898 | ** none. | |
899 | ** | |
900 | ** Side Effects: | |
8fe4fb9b | 901 | ** Writes BSS and malloc'ed memory to freezefile |
acae5a9d EA |
902 | */ |
903 | ||
7338e3d4 | 904 | union frz |
acae5a9d | 905 | { |
7338e3d4 EA |
906 | char frzpad[BUFSIZ]; /* insure we are on a BUFSIZ boundary */ |
907 | struct | |
908 | { | |
909 | time_t frzstamp; /* timestamp on this freeze */ | |
910 | char *frzbrk; /* the current break */ | |
2e3062fe EA |
911 | char *frzedata; /* address of edata */ |
912 | char *frzend; /* address of end */ | |
7338e3d4 EA |
913 | char frzver[252]; /* sendmail version */ |
914 | } frzinfo; | |
acae5a9d EA |
915 | }; |
916 | ||
8fe4fb9b EA |
917 | freeze(freezefile) |
918 | char *freezefile; | |
acae5a9d EA |
919 | { |
920 | int f; | |
7338e3d4 | 921 | union frz fhdr; |
2e3062fe | 922 | extern char edata, end; |
acae5a9d | 923 | extern char *sbrk(); |
912acb74 | 924 | extern char Version[]; |
acae5a9d | 925 | |
8fe4fb9b | 926 | if (freezefile == NULL) |
acae5a9d EA |
927 | return; |
928 | ||
929 | /* try to open the freeze file */ | |
8fe4fb9b | 930 | f = creat(freezefile, FileMode); |
acae5a9d EA |
931 | if (f < 0) |
932 | { | |
2e15a2d8 | 933 | syserr("Cannot freeze %s", freezefile); |
acae5a9d EA |
934 | errno = 0; |
935 | return; | |
936 | } | |
937 | ||
938 | /* build the freeze header */ | |
7338e3d4 EA |
939 | fhdr.frzinfo.frzstamp = curtime(); |
940 | fhdr.frzinfo.frzbrk = sbrk(0); | |
2e3062fe EA |
941 | fhdr.frzinfo.frzedata = &edata; |
942 | fhdr.frzinfo.frzend = &end; | |
0e306e7f | 943 | (void) strcpy(fhdr.frzinfo.frzver, Version); |
acae5a9d EA |
944 | |
945 | /* write out the freeze header */ | |
611b763d | 946 | if (write(f, (char *) &fhdr, sizeof fhdr) != sizeof fhdr || |
34fe0a9b EA |
947 | write(f, (char *) &edata, (int) (fhdr.frzinfo.frzbrk - &edata)) != |
948 | (int) (fhdr.frzinfo.frzbrk - &edata)) | |
7338e3d4 | 949 | { |
2e15a2d8 | 950 | syserr("Cannot freeze %s", freezefile); |
7338e3d4 | 951 | } |
acae5a9d EA |
952 | |
953 | /* fine, clean up */ | |
954 | (void) close(f); | |
955 | } | |
956 | \f/* | |
957 | ** THAW -- read in the frozen configuration file. | |
958 | ** | |
959 | ** Parameters: | |
8fe4fb9b | 960 | ** freezefile -- the name of the file to thaw from. |
acae5a9d EA |
961 | ** |
962 | ** Returns: | |
963 | ** TRUE if it successfully read the freeze file. | |
964 | ** FALSE otherwise. | |
965 | ** | |
966 | ** Side Effects: | |
8fe4fb9b | 967 | ** reads freezefile in to BSS area. |
acae5a9d EA |
968 | */ |
969 | ||
8fe4fb9b EA |
970 | thaw(freezefile) |
971 | char *freezefile; | |
acae5a9d EA |
972 | { |
973 | int f; | |
ccfed53c | 974 | register char *p; |
7338e3d4 | 975 | union frz fhdr; |
ccfed53c | 976 | char hbuf[60]; |
a59237a4 | 977 | extern char edata, end; |
912acb74 | 978 | extern char Version[]; |
17a67c62 | 979 | extern caddr_t brk(); |
ccfed53c EA |
980 | extern char **myhostname(); |
981 | extern char *macvalue(); | |
acae5a9d | 982 | |
8fe4fb9b | 983 | if (freezefile == NULL) |
acae5a9d EA |
984 | return (FALSE); |
985 | ||
986 | /* open the freeze file */ | |
8fe4fb9b | 987 | f = open(freezefile, 0); |
acae5a9d EA |
988 | if (f < 0) |
989 | { | |
990 | errno = 0; | |
991 | return (FALSE); | |
992 | } | |
993 | ||
994 | /* read in the header */ | |
07adc4f5 RA |
995 | if (read(f, (char *) &fhdr, sizeof fhdr) < sizeof fhdr) |
996 | { | |
db281fbf | 997 | syslog(LOG_WARNING, "Cannot read frozen config file"); |
07adc4f5 RA |
998 | (void) close(f); |
999 | return (FALSE); | |
1000 | } | |
db281fbf | 1001 | if (fhdr.frzinfo.frzedata != &edata || |
2e3062fe | 1002 | fhdr.frzinfo.frzend != &end || |
7338e3d4 | 1003 | strcmp(fhdr.frzinfo.frzver, Version) != 0) |
acae5a9d | 1004 | { |
07adc4f5 | 1005 | syslog(LOG_WARNING, "Wrong version of frozen config file"); |
acae5a9d EA |
1006 | (void) close(f); |
1007 | return (FALSE); | |
1008 | } | |
1009 | ||
1010 | /* arrange to have enough space */ | |
17a67c62 | 1011 | if (brk(fhdr.frzinfo.frzbrk) == (caddr_t) -1) |
acae5a9d | 1012 | { |
7338e3d4 | 1013 | syserr("Cannot break to %x", fhdr.frzinfo.frzbrk); |
acae5a9d EA |
1014 | (void) close(f); |
1015 | return (FALSE); | |
1016 | } | |
1017 | ||
1018 | /* now read in the freeze file */ | |
34fe0a9b EA |
1019 | if (read(f, (char *) &edata, (int) (fhdr.frzinfo.frzbrk - &edata)) != |
1020 | (int) (fhdr.frzinfo.frzbrk - &edata)) | |
acae5a9d | 1021 | { |
07adc4f5 | 1022 | syserr("Cannot read frozen config file"); |
acae5a9d | 1023 | /* oops! we have trashed memory..... */ |
0e306e7f | 1024 | (void) write(2, "Cannot read freeze file\n", 24); |
7338e3d4 | 1025 | _exit(EX_SOFTWARE); |
acae5a9d EA |
1026 | } |
1027 | ||
1028 | (void) close(f); | |
ccfed53c EA |
1029 | |
1030 | /* verify that the host name was correct on the freeze */ | |
1031 | (void) myhostname(hbuf, sizeof hbuf); | |
1032 | p = macvalue('w', CurEnv); | |
1033 | if (p == NULL) | |
1034 | p = ""; | |
1035 | if (strcmp(hbuf, macvalue('w', CurEnv)) == 0) | |
1036 | return (TRUE); | |
1037 | syslog(LOG_WARNING, "Hostname changed since freeze (%s => %s)", | |
1038 | p, hbuf); | |
1039 | return (FALSE); | |
acae5a9d | 1040 | } |
813d8709 EA |
1041 | \f/* |
1042 | ** DISCONNECT -- remove our connection with any foreground process | |
1043 | ** | |
1044 | ** Parameters: | |
d188728a EA |
1045 | ** fulldrop -- if set, we should also drop the controlling |
1046 | ** TTY if possible -- this should only be done when | |
1047 | ** setting up the daemon since otherwise UUCP can | |
1048 | ** leave us trying to open a dialin, and we will | |
1049 | ** wait for the carrier. | |
813d8709 EA |
1050 | ** |
1051 | ** Returns: | |
1052 | ** none | |
1053 | ** | |
1054 | ** Side Effects: | |
1055 | ** Trys to insure that we are immune to vagaries of | |
1056 | ** the controlling tty. | |
1057 | */ | |
1058 | ||
d188728a EA |
1059 | disconnect(fulldrop) |
1060 | bool fulldrop; | |
813d8709 EA |
1061 | { |
1062 | int fd; | |
1063 | ||
e6f08ab1 | 1064 | if (tTd(52, 1)) |
b9accadd EA |
1065 | printf("disconnect: In %d Out %d\n", fileno(InChannel), |
1066 | fileno(OutChannel)); | |
e6f08ab1 | 1067 | if (tTd(52, 5)) |
813d8709 | 1068 | { |
e6f08ab1 EA |
1069 | printf("don't\n"); |
1070 | return; | |
813d8709 | 1071 | } |
813d8709 EA |
1072 | |
1073 | /* be sure we don't get nasty signals */ | |
0e306e7f EA |
1074 | (void) signal(SIGHUP, SIG_IGN); |
1075 | (void) signal(SIGINT, SIG_IGN); | |
1076 | (void) signal(SIGQUIT, SIG_IGN); | |
813d8709 EA |
1077 | |
1078 | /* we can't communicate with our caller, so.... */ | |
7338e3d4 EA |
1079 | HoldErrs = TRUE; |
1080 | ErrorMode = EM_MAIL; | |
813d8709 EA |
1081 | Verbose = FALSE; |
1082 | ||
1083 | /* all input from /dev/null */ | |
813d8709 | 1084 | if (InChannel != stdin) |
b9accadd EA |
1085 | { |
1086 | (void) fclose(InChannel); | |
1087 | InChannel = stdin; | |
1088 | } | |
1089 | (void) freopen("/dev/null", "r", stdin); | |
813d8709 EA |
1090 | |
1091 | /* output to the transcript */ | |
b9accadd | 1092 | if (OutChannel != stdout) |
813d8709 | 1093 | { |
b9accadd EA |
1094 | (void) fclose(OutChannel); |
1095 | OutChannel = stdout; | |
813d8709 | 1096 | } |
912acb74 EA |
1097 | if (CurEnv->e_xfp == NULL) |
1098 | CurEnv->e_xfp = fopen("/dev/null", "w"); | |
b9accadd EA |
1099 | (void) fflush(stdout); |
1100 | (void) close(1); | |
1101 | (void) close(2); | |
912acb74 | 1102 | while ((fd = dup(fileno(CurEnv->e_xfp))) < 2 && fd > 0) |
b9accadd | 1103 | continue; |
813d8709 | 1104 | |
e6f08ab1 | 1105 | /* drop our controlling TTY completely if possible */ |
d188728a | 1106 | if (fulldrop) |
e6f08ab1 | 1107 | { |
afe907a4 MK |
1108 | #if BSD > 43 |
1109 | daemon(1, 1); | |
1110 | #else | |
1111 | #ifdef TIOCNOTTY | |
d188728a EA |
1112 | fd = open("/dev/tty", 2); |
1113 | if (fd >= 0) | |
1114 | { | |
17a67c62 | 1115 | (void) ioctl(fd, (int) TIOCNOTTY, (char *) 0); |
d188728a EA |
1116 | (void) close(fd); |
1117 | } | |
17a67c62 | 1118 | (void) setpgrp(0, 0); |
afe907a4 MK |
1119 | #endif /* TIOCNOTTY */ |
1120 | #endif /* BSD */ | |
70faa7c8 | 1121 | errno = 0; |
e6f08ab1 | 1122 | } |
e6f08ab1 | 1123 | |
813d8709 EA |
1124 | # ifdef LOG |
1125 | if (LogLevel > 11) | |
1126 | syslog(LOG_DEBUG, "in background, pid=%d", getpid()); | |
1127 | # endif LOG | |
1128 | ||
1129 | errno = 0; | |
1130 | } |