Commit | Line | Data |
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15637ed4 RG |
1 | /* |
2 | * Copyright (c) 1983 Eric P. Allman | |
6f14531a RG |
3 | * Copyright (c) 1988, 1993 |
4 | * The Regents of the University of California. All rights reserved. | |
15637ed4 RG |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * 2. Redistributions in binary form must reproduce the above copyright | |
12 | * notice, this list of conditions and the following disclaimer in the | |
13 | * documentation and/or other materials provided with the distribution. | |
14 | * 3. All advertising materials mentioning features or use of this software | |
15 | * must display the following acknowledgement: | |
16 | * This product includes software developed by the University of | |
17 | * California, Berkeley and its contributors. | |
18 | * 4. Neither the name of the University nor the names of its contributors | |
19 | * may be used to endorse or promote products derived from this software | |
20 | * without specific prior written permission. | |
21 | * | |
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
32 | * SUCH DAMAGE. | |
33 | */ | |
34 | ||
35 | #ifndef lint | |
6f14531a RG |
36 | static char copyright[] = |
37 | "@(#) Copyright (c) 1988, 1993\n\ | |
38 | The Regents of the University of California. All rights reserved.\n"; | |
15637ed4 RG |
39 | #endif /* not lint */ |
40 | ||
41 | #ifndef lint | |
d747e748 | 42 | static char sccsid[] = "@(#)main.c 8.33 (Berkeley) 10/24/93"; |
15637ed4 RG |
43 | #endif /* not lint */ |
44 | ||
45 | #define _DEFINE | |
46 | ||
6f14531a | 47 | #include "sendmail.h" |
15637ed4 | 48 | #include <sgtty.h> |
6f14531a | 49 | #ifdef NAMED_BIND |
15637ed4 RG |
50 | #include <arpa/nameser.h> |
51 | #include <resolv.h> | |
6f14531a RG |
52 | #endif |
53 | #include <pwd.h> | |
15637ed4 RG |
54 | |
55 | # ifdef lint | |
56 | char edata, end; | |
d747e748 | 57 | # endif /* lint */ |
15637ed4 RG |
58 | |
59 | /* | |
60 | ** SENDMAIL -- Post mail to a set of destinations. | |
61 | ** | |
62 | ** This is the basic mail router. All user mail programs should | |
63 | ** call this routine to actually deliver mail. Sendmail in | |
64 | ** turn calls a bunch of mail servers that do the real work of | |
65 | ** delivering the mail. | |
66 | ** | |
67 | ** Sendmail is driven by tables read in from /usr/lib/sendmail.cf | |
68 | ** (read by readcf.c). Some more static configuration info, | |
69 | ** including some code that you may want to tailor for your | |
70 | ** installation, is in conf.c. You may also want to touch | |
71 | ** daemon.c (if you have some other IPC mechanism), acct.c | |
72 | ** (to change your accounting), names.c (to adjust the name | |
73 | ** server mechanism). | |
74 | ** | |
75 | ** Usage: | |
76 | ** /usr/lib/sendmail [flags] addr ... | |
77 | ** | |
78 | ** See the associated documentation for details. | |
79 | ** | |
80 | ** Author: | |
81 | ** Eric Allman, UCB/INGRES (until 10/81) | |
82 | ** Britton-Lee, Inc., purveyors of fine | |
83 | ** database computers (from 11/81) | |
6f14531a | 84 | ** Now back at UCB at the Mammoth project. |
15637ed4 RG |
85 | ** The support of the INGRES Project and Britton-Lee is |
86 | ** gratefully acknowledged. Britton-Lee in | |
87 | ** particular had absolutely nothing to gain from | |
88 | ** my involvement in this project. | |
89 | */ | |
90 | ||
91 | ||
92 | int NextMailer; /* "free" index into Mailer struct */ | |
93 | char *FullName; /* sender's full name */ | |
94 | ENVELOPE BlankEnvelope; /* a "blank" envelope */ | |
95 | ENVELOPE MainEnvelope; /* the envelope around the basic letter */ | |
96 | ADDRESS NullAddress = /* a null address */ | |
97 | { "", "", NULL, "" }; | |
d747e748 | 98 | char *UserEnviron[MAXUSERENVIRON + 2]; |
6f14531a RG |
99 | /* saved user environment */ |
100 | char RealUserName[256]; /* the actual user id on this host */ | |
d747e748 JH |
101 | char *CommandLineArgs; /* command line args for pid file */ |
102 | bool Warn_Q_option = FALSE; /* warn about Q option use */ | |
15637ed4 RG |
103 | |
104 | /* | |
105 | ** Pointers for setproctitle. | |
106 | ** This allows "ps" listings to give more useful information. | |
15637ed4 RG |
107 | */ |
108 | ||
109 | # ifdef SETPROCTITLE | |
110 | char **Argv = NULL; /* pointer to argument vector */ | |
111 | char *LastArgv = NULL; /* end of argv */ | |
6f14531a RG |
112 | # endif /* SETPROCTITLE */ |
113 | ||
114 | static void obsolete(); | |
15637ed4 RG |
115 | |
116 | #ifdef DAEMON | |
117 | #ifndef SMTP | |
118 | ERROR %%%% Cannot have daemon mode without SMTP %%%% ERROR | |
6f14531a RG |
119 | #endif /* SMTP */ |
120 | #endif /* DAEMON */ | |
121 | ||
d747e748 | 122 | #define MAXCONFIGLEVEL 5 /* highest config version level known */ |
15637ed4 RG |
123 | |
124 | main(argc, argv, envp) | |
125 | int argc; | |
126 | char **argv; | |
127 | char **envp; | |
128 | { | |
129 | register char *p; | |
130 | char **av; | |
131 | extern int finis(); | |
132 | extern char Version[]; | |
6f14531a | 133 | char *ep, *from; |
15637ed4 RG |
134 | typedef int (*fnptr)(); |
135 | STAB *st; | |
136 | register int i; | |
6f14531a | 137 | int j; |
15637ed4 | 138 | bool queuemode = FALSE; /* process queue requests */ |
6f14531a | 139 | bool safecf = TRUE; |
d747e748 JH |
140 | bool warn_C_flag = FALSE; |
141 | char warn_f_flag = '\0'; | |
15637ed4 | 142 | static bool reenter = FALSE; |
6f14531a RG |
143 | char *argv0 = argv[0]; |
144 | struct passwd *pw; | |
145 | struct stat stb; | |
146 | char jbuf[MAXHOSTNAMELEN]; /* holds MyHostName */ | |
147 | extern int DtableSize; | |
148 | extern int optind; | |
15637ed4 RG |
149 | extern time_t convtime(); |
150 | extern putheader(), putbody(); | |
15637ed4 RG |
151 | extern void intsig(); |
152 | extern char **myhostname(); | |
153 | extern char *arpadate(); | |
6f14531a | 154 | extern char *getauthinfo(); |
d747e748 | 155 | extern char *getcfname(); |
6f14531a | 156 | extern char *optarg; |
15637ed4 RG |
157 | extern char **environ; |
158 | ||
159 | /* | |
160 | ** Check to see if we reentered. | |
161 | ** This would normally happen if e_putheader or e_putbody | |
162 | ** were NULL when invoked. | |
163 | */ | |
164 | ||
165 | if (reenter) | |
166 | { | |
167 | syserr("main: reentered!"); | |
168 | abort(); | |
169 | } | |
170 | reenter = TRUE; | |
171 | ||
d747e748 JH |
172 | /* do machine-dependent initializations */ |
173 | init_md(); | |
6f14531a RG |
174 | |
175 | /* in 4.4BSD, the table can be huge; impose a reasonable limit */ | |
3a363396 | 176 | DtableSize = getdtsize(); |
6f14531a RG |
177 | if (DtableSize > 256) |
178 | DtableSize = 256; | |
15637ed4 RG |
179 | |
180 | /* | |
181 | ** Be sure we have enough file descriptors. | |
182 | ** But also be sure that 0, 1, & 2 are open. | |
183 | */ | |
184 | ||
185 | i = open("/dev/null", O_RDWR); | |
d747e748 | 186 | if (fstat(STDIN_FILENO, &stb) < 0 && errno != EOPNOTSUPP) |
6f14531a | 187 | (void) dup2(i, STDIN_FILENO); |
d747e748 | 188 | if (fstat(STDOUT_FILENO, &stb) < 0 && errno != EOPNOTSUPP) |
6f14531a | 189 | (void) dup2(i, STDOUT_FILENO); |
d747e748 | 190 | if (fstat(STDERR_FILENO, &stb) < 0 && errno != EOPNOTSUPP) |
6f14531a | 191 | (void) dup2(i, STDERR_FILENO); |
d747e748 JH |
192 | if (i != STDIN_FILENO && i != STDOUT_FILENO && i != STDERR_FILENO) |
193 | (void) close(i); | |
6f14531a RG |
194 | |
195 | i = DtableSize; | |
196 | while (--i > 0) | |
197 | { | |
198 | if (i != STDIN_FILENO && i != STDOUT_FILENO && i != STDERR_FILENO) | |
199 | (void) close(i); | |
200 | } | |
15637ed4 RG |
201 | errno = 0; |
202 | ||
203 | #ifdef LOG_MAIL | |
204 | openlog("sendmail", LOG_PID, LOG_MAIL); | |
205 | #else | |
206 | openlog("sendmail", LOG_PID); | |
207 | #endif | |
208 | ||
15637ed4 RG |
209 | /* set up the blank envelope */ |
210 | BlankEnvelope.e_puthdr = putheader; | |
211 | BlankEnvelope.e_putbody = putbody; | |
212 | BlankEnvelope.e_xfp = NULL; | |
213 | STRUCTCOPY(NullAddress, BlankEnvelope.e_from); | |
214 | CurEnv = &BlankEnvelope; | |
215 | STRUCTCOPY(NullAddress, MainEnvelope.e_from); | |
216 | ||
6f14531a RG |
217 | /* |
218 | ** Set default values for variables. | |
219 | ** These cannot be in initialized data space. | |
220 | */ | |
221 | ||
222 | setdefaults(&BlankEnvelope); | |
223 | ||
224 | RealUid = getuid(); | |
225 | RealGid = getgid(); | |
226 | ||
227 | pw = getpwuid(RealUid); | |
228 | if (pw != NULL) | |
229 | (void) strcpy(RealUserName, pw->pw_name); | |
230 | else | |
231 | (void) sprintf(RealUserName, "Unknown UID %d", RealUid); | |
232 | ||
d747e748 JH |
233 | /* save command line arguments */ |
234 | i = 0; | |
235 | for (av = argv; *av != NULL; ) | |
236 | i += strlen(*av++) + 1; | |
237 | CommandLineArgs = xalloc(i); | |
238 | p = CommandLineArgs; | |
239 | for (av = argv; *av != NULL; ) | |
240 | { | |
241 | if (av != argv) | |
242 | *p++ = ' '; | |
243 | strcpy(p, *av++); | |
244 | p += strlen(p); | |
245 | } | |
3a363396 | 246 | |
6f14531a RG |
247 | /* Handle any non-getoptable constructions. */ |
248 | obsolete(argv); | |
249 | ||
15637ed4 RG |
250 | /* |
251 | ** Do a quick prescan of the argument list. | |
15637ed4 | 252 | */ |
d747e748 | 253 | |
3a363396 | 254 | #if defined(__osf__) || defined(_AIX3) |
d747e748 | 255 | # define OPTIONS "B:b:C:cd:e:F:f:h:Iimno:p:q:r:sTtvX:x" |
6f14531a | 256 | #else |
d747e748 JH |
257 | # if defined(ultrix) |
258 | # define OPTIONS "B:b:C:cd:e:F:f:h:IiM:mno:p:q:r:sTtvX:" | |
259 | # else | |
260 | # define OPTIONS "B:b:C:cd:e:F:f:h:Iimno:p:q:r:sTtvX:" | |
261 | # endif | |
6f14531a RG |
262 | #endif |
263 | while ((j = getopt(argc, argv, OPTIONS)) != EOF) | |
15637ed4 | 264 | { |
6f14531a | 265 | switch (j) |
15637ed4 | 266 | { |
6f14531a | 267 | case 'd': |
15637ed4 | 268 | tTsetup(tTdvect, sizeof tTdvect, "0-99.1"); |
6f14531a | 269 | tTflag(optarg); |
15637ed4 RG |
270 | setbuf(stdout, (char *) NULL); |
271 | printf("Version %s\n", Version); | |
6f14531a | 272 | break; |
15637ed4 RG |
273 | } |
274 | } | |
275 | ||
276 | InChannel = stdin; | |
277 | OutChannel = stdout; | |
278 | ||
6f14531a RG |
279 | /* |
280 | ** Move the environment so setproctitle can use the space at | |
281 | ** the top of memory. | |
282 | */ | |
283 | ||
284 | for (i = j = 0; j < MAXUSERENVIRON && (p = envp[i]) != NULL; i++) | |
285 | { | |
286 | if (strncmp(p, "FS=", 3) == 0 || strncmp(p, "LD_", 3) == 0) | |
287 | continue; | |
288 | UserEnviron[j++] = newstr(p); | |
289 | } | |
290 | UserEnviron[j] = NULL; | |
15637ed4 RG |
291 | environ = UserEnviron; |
292 | ||
d747e748 | 293 | # ifdef SETPROCTITLE |
15637ed4 RG |
294 | /* |
295 | ** Save start and extent of argv for setproctitle. | |
296 | */ | |
297 | ||
298 | Argv = argv; | |
299 | if (i > 0) | |
300 | LastArgv = envp[i - 1] + strlen(envp[i - 1]); | |
301 | else | |
302 | LastArgv = argv[argc - 1] + strlen(argv[argc - 1]); | |
6f14531a | 303 | # endif /* SETPROCTITLE */ |
15637ed4 | 304 | |
d747e748 JH |
305 | if (setsignal(SIGINT, SIG_IGN) != SIG_IGN) |
306 | (void) setsignal(SIGINT, intsig); | |
307 | if (setsignal(SIGHUP, SIG_IGN) != SIG_IGN) | |
308 | (void) setsignal(SIGHUP, intsig); | |
309 | (void) setsignal(SIGTERM, intsig); | |
310 | (void) setsignal(SIGPIPE, SIG_IGN); | |
6f14531a | 311 | OldUmask = umask(022); |
15637ed4 | 312 | OpMode = MD_DELIVER; |
15637ed4 RG |
313 | FullName = getenv("NAME"); |
314 | ||
6f14531a RG |
315 | #ifdef NAMED_BIND |
316 | if (tTd(8, 8)) | |
317 | _res.options |= RES_DEBUG; | |
318 | #endif | |
319 | ||
15637ed4 RG |
320 | errno = 0; |
321 | from = NULL; | |
322 | ||
d747e748 JH |
323 | /* initialize some macros, etc. */ |
324 | initmacros(CurEnv); | |
15637ed4 | 325 | |
d747e748 JH |
326 | /* version */ |
327 | define('v', Version, CurEnv); | |
6f14531a RG |
328 | |
329 | /* hostname */ | |
330 | av = myhostname(jbuf, sizeof jbuf); | |
331 | if (jbuf[0] != '\0') | |
332 | { | |
333 | struct utsname utsname; | |
334 | ||
335 | if (tTd(0, 4)) | |
336 | printf("canonical name: %s\n", jbuf); | |
337 | p = newstr(jbuf); | |
d747e748 JH |
338 | define('w', newstr(jbuf), CurEnv); /* must be new string */ |
339 | define('j', p, CurEnv); | |
6f14531a RG |
340 | setclass('w', p); |
341 | ||
d747e748 JH |
342 | p = strchr(jbuf, '.'); |
343 | if (p != NULL) | |
15637ed4 | 344 | { |
d747e748 JH |
345 | if (p[1] != '\0') |
346 | { | |
347 | define('m', newstr(&p[1]), CurEnv); | |
348 | setclass('m', &p[1]); | |
349 | } | |
350 | while (p != NULL && strchr(&p[1], '.') != NULL) | |
351 | { | |
352 | *p = '\0'; | |
353 | setclass('w', jbuf); | |
354 | *p++ = '.'; | |
355 | p = strchr(p, '.'); | |
356 | } | |
15637ed4 | 357 | } |
6f14531a RG |
358 | |
359 | if (uname(&utsname) >= 0) | |
360 | p = utsname.nodename; | |
361 | else | |
15637ed4 | 362 | { |
6f14531a RG |
363 | makelower(jbuf); |
364 | p = jbuf; | |
15637ed4 | 365 | } |
6f14531a RG |
366 | if (tTd(0, 4)) |
367 | printf("UUCP nodename: %s\n", p); | |
368 | p = newstr(p); | |
369 | define('k', p, CurEnv); | |
370 | setclass('w', p); | |
371 | } | |
372 | while (av != NULL && *av != NULL) | |
373 | { | |
374 | if (tTd(0, 4)) | |
375 | printf("\ta.k.a.: %s\n", *av); | |
376 | setclass('w', *av++); | |
15637ed4 RG |
377 | } |
378 | ||
379 | /* current time */ | |
380 | define('b', arpadate((char *) NULL), CurEnv); | |
381 | ||
6f14531a RG |
382 | /* |
383 | ** Find our real host name for future logging. | |
384 | */ | |
385 | ||
386 | p = getauthinfo(STDIN_FILENO); | |
387 | define('_', p, CurEnv); | |
388 | ||
15637ed4 RG |
389 | /* |
390 | ** Crack argv. | |
391 | */ | |
392 | ||
393 | av = argv; | |
6f14531a | 394 | p = strrchr(*av, '/'); |
15637ed4 RG |
395 | if (p++ == NULL) |
396 | p = *av; | |
397 | if (strcmp(p, "newaliases") == 0) | |
398 | OpMode = MD_INITALIAS; | |
399 | else if (strcmp(p, "mailq") == 0) | |
400 | OpMode = MD_PRINT; | |
401 | else if (strcmp(p, "smtpd") == 0) | |
402 | OpMode = MD_DAEMON; | |
6f14531a RG |
403 | |
404 | optind = 1; | |
405 | while ((j = getopt(argc, argv, OPTIONS)) != EOF) | |
15637ed4 | 406 | { |
6f14531a | 407 | switch (j) |
15637ed4 RG |
408 | { |
409 | case 'b': /* operations mode */ | |
6f14531a | 410 | switch (j = *optarg) |
15637ed4 RG |
411 | { |
412 | case MD_DAEMON: | |
413 | # ifdef DAEMON | |
3a363396 | 414 | if (RealUid != 0) { |
15637ed4 RG |
415 | usrerr("Permission denied"); |
416 | exit (EX_USAGE); | |
417 | } | |
418 | (void) unsetenv("HOSTALIASES"); | |
419 | # else | |
420 | usrerr("Daemon mode not implemented"); | |
421 | ExitStat = EX_USAGE; | |
422 | break; | |
6f14531a | 423 | # endif /* DAEMON */ |
15637ed4 RG |
424 | case MD_SMTP: |
425 | # ifndef SMTP | |
426 | usrerr("I don't speak SMTP"); | |
427 | ExitStat = EX_USAGE; | |
428 | break; | |
6f14531a | 429 | # endif /* SMTP */ |
15637ed4 RG |
430 | case MD_DELIVER: |
431 | case MD_VERIFY: | |
432 | case MD_TEST: | |
433 | case MD_INITALIAS: | |
434 | case MD_PRINT: | |
6f14531a | 435 | OpMode = j; |
15637ed4 RG |
436 | break; |
437 | ||
6f14531a RG |
438 | case MD_FREEZE: |
439 | usrerr("Frozen configurations unsupported"); | |
440 | ExitStat = EX_USAGE; | |
441 | break; | |
6f14531a | 442 | |
15637ed4 | 443 | default: |
6f14531a | 444 | usrerr("Invalid operation mode %c", j); |
15637ed4 RG |
445 | ExitStat = EX_USAGE; |
446 | break; | |
447 | } | |
448 | break; | |
449 | ||
6f14531a RG |
450 | case 'B': /* body type */ |
451 | CurEnv->e_bodytype = newstr(optarg); | |
452 | break; | |
453 | ||
15637ed4 | 454 | case 'C': /* select configuration file (already done) */ |
3a363396 | 455 | if (RealUid != 0) |
d747e748 JH |
456 | warn_C_flag = TRUE; |
457 | ConfFile = optarg; | |
458 | (void) setgid(RealGid); | |
459 | (void) setuid(RealUid); | |
460 | safecf = FALSE; | |
15637ed4 RG |
461 | break; |
462 | ||
d747e748 | 463 | case 'd': /* debugging -- already done */ |
15637ed4 RG |
464 | break; |
465 | ||
466 | case 'f': /* from address */ | |
467 | case 'r': /* obsolete -f flag */ | |
15637ed4 RG |
468 | if (from != NULL) |
469 | { | |
470 | usrerr("More than one \"from\" person"); | |
471 | ExitStat = EX_USAGE; | |
472 | break; | |
473 | } | |
6f14531a RG |
474 | from = newstr(optarg); |
475 | if (strcmp(RealUserName, from) != 0) | |
d747e748 | 476 | warn_f_flag = j; |
15637ed4 RG |
477 | break; |
478 | ||
479 | case 'F': /* set full name */ | |
6f14531a | 480 | FullName = newstr(optarg); |
15637ed4 RG |
481 | break; |
482 | ||
483 | case 'h': /* hop count */ | |
6f14531a RG |
484 | CurEnv->e_hopcount = strtol(optarg, &ep, 10); |
485 | if (*ep) | |
15637ed4 | 486 | { |
6f14531a | 487 | usrerr("Bad hop count (%s)", optarg); |
15637ed4 | 488 | ExitStat = EX_USAGE; |
15637ed4 RG |
489 | break; |
490 | } | |
15637ed4 RG |
491 | break; |
492 | ||
493 | case 'n': /* don't alias */ | |
494 | NoAlias = TRUE; | |
495 | break; | |
496 | ||
497 | case 'o': /* set option */ | |
6f14531a RG |
498 | setoption(*optarg, optarg + 1, FALSE, TRUE, CurEnv); |
499 | break; | |
500 | ||
501 | case 'p': /* set protocol */ | |
d747e748 JH |
502 | p = strchr(optarg, ':'); |
503 | if (p != NULL) | |
504 | *p++ = '\0'; | |
6f14531a RG |
505 | if (*optarg != '\0') |
506 | define('r', newstr(optarg), CurEnv); | |
d747e748 JH |
507 | if (p != NULL && *p != '\0') |
508 | define('s', newstr(p), CurEnv); | |
15637ed4 RG |
509 | break; |
510 | ||
511 | case 'q': /* run queue files at intervals */ | |
512 | # ifdef QUEUE | |
15637ed4 | 513 | (void) unsetenv("HOSTALIASES"); |
6f14531a | 514 | FullName = NULL; |
15637ed4 | 515 | queuemode = TRUE; |
6f14531a RG |
516 | switch (optarg[0]) |
517 | { | |
518 | case 'I': | |
519 | QueueLimitId = newstr(&optarg[1]); | |
520 | break; | |
521 | ||
522 | case 'R': | |
523 | QueueLimitRecipient = newstr(&optarg[1]); | |
524 | break; | |
525 | ||
526 | case 'S': | |
527 | QueueLimitSender = newstr(&optarg[1]); | |
528 | break; | |
529 | ||
530 | default: | |
531 | QueueIntvl = convtime(optarg, 'm'); | |
532 | break; | |
533 | } | |
534 | # else /* QUEUE */ | |
15637ed4 RG |
535 | usrerr("I don't know about queues"); |
536 | ExitStat = EX_USAGE; | |
6f14531a | 537 | # endif /* QUEUE */ |
15637ed4 RG |
538 | break; |
539 | ||
540 | case 't': /* read recipients from message */ | |
541 | GrabTo = TRUE; | |
542 | break; | |
543 | ||
3a363396 NW |
544 | case 'X': /* traffic log file */ |
545 | setuid(RealUid); | |
546 | TrafficLogFile = fopen(optarg, "a"); | |
547 | if (TrafficLogFile == NULL) | |
548 | { | |
549 | syserr("cannot open %s", optarg); | |
550 | break; | |
551 | } | |
552 | #ifdef HASSETVBUF | |
d747e748 | 553 | setvbuf(TrafficLogFile, NULL, _IOLBF, 0); |
3a363396 NW |
554 | #else |
555 | setlinebuf(TrafficLogFile); | |
556 | #endif | |
557 | break; | |
558 | ||
15637ed4 RG |
559 | /* compatibility flags */ |
560 | case 'c': /* connect to non-local mailers */ | |
15637ed4 RG |
561 | case 'i': /* don't let dot stop me */ |
562 | case 'm': /* send to me too */ | |
563 | case 'T': /* set timeout interval */ | |
564 | case 'v': /* give blow-by-blow description */ | |
6f14531a RG |
565 | setoption(j, "T", FALSE, TRUE, CurEnv); |
566 | break; | |
567 | ||
568 | case 'e': /* error message disposition */ | |
d747e748 JH |
569 | # if defined(ultrix) |
570 | case 'M': /* define macro */ | |
571 | # endif | |
6f14531a | 572 | setoption(j, optarg, FALSE, TRUE, CurEnv); |
15637ed4 RG |
573 | break; |
574 | ||
575 | case 's': /* save From lines in headers */ | |
6f14531a | 576 | setoption('f', "T", FALSE, TRUE, CurEnv); |
15637ed4 RG |
577 | break; |
578 | ||
579 | # ifdef DBM | |
580 | case 'I': /* initialize alias DBM file */ | |
581 | OpMode = MD_INITALIAS; | |
582 | break; | |
6f14531a RG |
583 | # endif /* DBM */ |
584 | ||
3a363396 NW |
585 | # if defined(__osf__) || defined(_AIX3) |
586 | case 'x': /* random flag that OSF/1 & AIX mailx passes */ | |
6f14531a RG |
587 | break; |
588 | # endif | |
589 | ||
590 | default: | |
591 | ExitStat = EX_USAGE; | |
592 | finis(); | |
593 | break; | |
15637ed4 RG |
594 | } |
595 | } | |
6f14531a | 596 | av += optind; |
15637ed4 RG |
597 | |
598 | /* | |
599 | ** Do basic initialization. | |
600 | ** Read system control file. | |
601 | ** Extract special fields for local use. | |
602 | */ | |
603 | ||
d747e748 JH |
604 | readcf(getcfname(), safecf, CurEnv); |
605 | ||
606 | if (tTd(0, 1)) | |
607 | { | |
608 | printf("SYSTEM IDENTITY (after readcf):"); | |
609 | printf("\n\t (short domain name) $w = "); | |
610 | xputs(macvalue('w', CurEnv)); | |
611 | printf("\n\t(canonical domain name) $j = "); | |
612 | xputs(macvalue('j', CurEnv)); | |
613 | printf("\n\t (subdomain name) $m = "); | |
614 | xputs(macvalue('m', CurEnv)); | |
615 | printf("\n\t (node name) $k = "); | |
616 | xputs(macvalue('k', CurEnv)); | |
617 | printf("\n"); | |
618 | } | |
619 | ||
620 | /* | |
621 | ** Process authorization warnings from command line. | |
622 | */ | |
623 | ||
624 | if (warn_C_flag) | |
625 | auth_warning(CurEnv, "Processed by %s with -C %s", | |
626 | RealUserName, ConfFile); | |
627 | /* | |
628 | if (warn_f_flag != '\0') | |
629 | auth_warning(CurEnv, "%s set sender to %s using -%c", | |
630 | RealUserName, from, warn_f_flag); | |
631 | */ | |
632 | if (Warn_Q_option) | |
633 | auth_warning(CurEnv, "Processed from queue %s", QueueDir); | |
6f14531a | 634 | |
6f14531a RG |
635 | /* Enforce use of local time (null string overrides this) */ |
636 | if (TimeZoneSpec == NULL) | |
637 | unsetenv("TZ"); | |
638 | else if (TimeZoneSpec[0] != '\0') | |
639 | { | |
d747e748 JH |
640 | char **evp = UserEnviron; |
641 | char tzbuf[100]; | |
642 | ||
643 | strcpy(tzbuf, "TZ="); | |
644 | strcpy(&tzbuf[3], TimeZoneSpec); | |
645 | ||
646 | while (*evp != NULL && strncmp(*evp, "TZ=", 3) != 0) | |
647 | evp++; | |
648 | if (*evp == NULL) | |
649 | { | |
650 | *evp++ = newstr(tzbuf); | |
651 | *evp = NULL; | |
652 | } | |
653 | else | |
654 | *evp++ = newstr(tzbuf); | |
6f14531a | 655 | } |
6f14531a RG |
656 | |
657 | if (ConfigLevel > MAXCONFIGLEVEL) | |
658 | { | |
659 | syserr("Warning: .cf version level (%d) exceeds program functionality (%d)", | |
660 | ConfigLevel, MAXCONFIGLEVEL); | |
661 | } | |
3a363396 | 662 | |
d747e748 JH |
663 | if (MeToo) |
664 | BlankEnvelope.e_flags |= EF_METOO; | |
3a363396 | 665 | |
6f14531a | 666 | # ifdef QUEUE |
d747e748 | 667 | if (queuemode && RealUid != 0 && bitset(PRIV_RESTRICTQRUN, PrivacyFlags)) |
6f14531a RG |
668 | { |
669 | struct stat stbuf; | |
670 | ||
671 | /* check to see if we own the queue directory */ | |
672 | if (stat(QueueDir, &stbuf) < 0) | |
673 | syserr("main: cannot stat %s", QueueDir); | |
3a363396 | 674 | if (stbuf.st_uid != RealUid) |
6f14531a RG |
675 | { |
676 | /* nope, really a botch */ | |
d747e748 | 677 | usrerr("You do not have permission to process the queue"); |
6f14531a RG |
678 | exit (EX_NOPERM); |
679 | } | |
680 | } | |
681 | # endif /* QUEUE */ | |
15637ed4 RG |
682 | |
683 | switch (OpMode) | |
684 | { | |
15637ed4 RG |
685 | case MD_INITALIAS: |
686 | Verbose = TRUE; | |
687 | break; | |
6f14531a RG |
688 | |
689 | case MD_DAEMON: | |
690 | /* remove things that don't make sense in daemon mode */ | |
691 | FullName = NULL; | |
692 | break; | |
693 | ||
694 | case MD_SMTP: | |
695 | if (RealUid != 0) | |
696 | auth_warning(CurEnv, | |
697 | "%s owned process doing -bs", | |
698 | RealUserName); | |
699 | break; | |
15637ed4 RG |
700 | } |
701 | ||
702 | /* do heuristic mode adjustment */ | |
703 | if (Verbose) | |
704 | { | |
705 | /* turn off noconnect option */ | |
6f14531a | 706 | setoption('c', "F", TRUE, FALSE, CurEnv); |
15637ed4 RG |
707 | |
708 | /* turn on interactive delivery */ | |
6f14531a | 709 | setoption('d', "", TRUE, FALSE, CurEnv); |
15637ed4 RG |
710 | } |
711 | ||
3a363396 NW |
712 | if (ConfigLevel < 3) |
713 | { | |
714 | UseErrorsTo = TRUE; | |
715 | } | |
716 | ||
15637ed4 | 717 | /* our name for SMTP codes */ |
6f14531a | 718 | expand("\201j", jbuf, &jbuf[sizeof jbuf - 1], CurEnv); |
15637ed4 RG |
719 | MyHostName = jbuf; |
720 | ||
d747e748 JH |
721 | /* make certain that this name is part of the $=w class */ |
722 | setclass('w', MyHostName); | |
723 | ||
6f14531a | 724 | /* the indices of built-in mailers */ |
15637ed4 RG |
725 | st = stab("local", ST_MAILER, ST_FIND); |
726 | if (st == NULL) | |
727 | syserr("No local mailer defined"); | |
728 | else | |
729 | LocalMailer = st->s_mailer; | |
6f14531a | 730 | |
15637ed4 RG |
731 | st = stab("prog", ST_MAILER, ST_FIND); |
732 | if (st == NULL) | |
733 | syserr("No prog mailer defined"); | |
734 | else | |
735 | ProgMailer = st->s_mailer; | |
736 | ||
6f14531a RG |
737 | st = stab("*file*", ST_MAILER, ST_FIND); |
738 | if (st == NULL) | |
739 | syserr("No *file* mailer defined"); | |
740 | else | |
741 | FileMailer = st->s_mailer; | |
742 | ||
743 | st = stab("*include*", ST_MAILER, ST_FIND); | |
744 | if (st == NULL) | |
745 | syserr("No *include* mailer defined"); | |
746 | else | |
747 | InclMailer = st->s_mailer; | |
748 | ||
749 | ||
15637ed4 | 750 | /* operate in queue directory */ |
d747e748 | 751 | if (OpMode != MD_TEST && chdir(QueueDir) < 0) |
15637ed4 RG |
752 | { |
753 | syserr("cannot chdir(%s)", QueueDir); | |
3a363396 | 754 | ExitStat = EX_SOFTWARE; |
15637ed4 RG |
755 | } |
756 | ||
6f14531a | 757 | /* if we've had errors so far, exit now */ |
3a363396 NW |
758 | if (ExitStat != EX_OK && OpMode != MD_TEST) |
759 | { | |
760 | setuid(RealUid); | |
6f14531a | 761 | exit(ExitStat); |
3a363396 | 762 | } |
6f14531a | 763 | |
15637ed4 RG |
764 | /* |
765 | ** Do operation-mode-dependent initialization. | |
766 | */ | |
767 | ||
768 | switch (OpMode) | |
769 | { | |
770 | case MD_PRINT: | |
771 | /* print the queue */ | |
772 | #ifdef QUEUE | |
773 | dropenvelope(CurEnv); | |
774 | printqueue(); | |
3a363396 | 775 | setuid(RealUid); |
15637ed4 | 776 | exit(EX_OK); |
6f14531a | 777 | #else /* QUEUE */ |
15637ed4 RG |
778 | usrerr("No queue to print"); |
779 | finis(); | |
6f14531a | 780 | #endif /* QUEUE */ |
15637ed4 RG |
781 | |
782 | case MD_INITALIAS: | |
783 | /* initialize alias database */ | |
6f14531a | 784 | initmaps(TRUE, CurEnv); |
3a363396 | 785 | setuid(RealUid); |
15637ed4 RG |
786 | exit(EX_OK); |
787 | ||
788 | case MD_DAEMON: | |
789 | /* don't open alias database -- done in srvrsmtp */ | |
790 | break; | |
791 | ||
792 | default: | |
793 | /* open the alias database */ | |
6f14531a | 794 | initmaps(FALSE, CurEnv); |
15637ed4 RG |
795 | break; |
796 | } | |
797 | ||
798 | if (tTd(0, 15)) | |
799 | { | |
800 | /* print configuration table (or at least part of it) */ | |
801 | printrules(); | |
802 | for (i = 0; i < MAXMAILERS; i++) | |
803 | { | |
804 | register struct mailer *m = Mailer[i]; | |
805 | int j; | |
806 | ||
807 | if (m == NULL) | |
808 | continue; | |
6f14531a RG |
809 | printf("mailer %d (%s): P=%s S=%d/%d R=%d/%d M=%ld F=", i, m->m_name, |
810 | m->m_mailer, m->m_se_rwset, m->m_sh_rwset, | |
811 | m->m_re_rwset, m->m_rh_rwset, m->m_maxsize); | |
15637ed4 RG |
812 | for (j = '\0'; j <= '\177'; j++) |
813 | if (bitnset(j, m->m_flags)) | |
814 | (void) putchar(j); | |
815 | printf(" E="); | |
816 | xputs(m->m_eol); | |
6f14531a RG |
817 | if (m->m_argv != NULL) |
818 | { | |
819 | char **a = m->m_argv; | |
820 | ||
821 | printf(" A="); | |
822 | while (*a != NULL) | |
823 | { | |
824 | if (a != m->m_argv) | |
825 | printf(" "); | |
826 | xputs(*a++); | |
827 | } | |
828 | } | |
15637ed4 RG |
829 | printf("\n"); |
830 | } | |
831 | } | |
832 | ||
833 | /* | |
834 | ** Switch to the main envelope. | |
835 | */ | |
836 | ||
6f14531a | 837 | CurEnv = newenvelope(&MainEnvelope, CurEnv); |
15637ed4 RG |
838 | MainEnvelope.e_flags = BlankEnvelope.e_flags; |
839 | ||
840 | /* | |
841 | ** If test mode, read addresses from stdin and process. | |
842 | */ | |
843 | ||
844 | if (OpMode == MD_TEST) | |
845 | { | |
846 | char buf[MAXLINE]; | |
847 | ||
6f14531a RG |
848 | if (isatty(fileno(stdin))) |
849 | Verbose = TRUE; | |
850 | ||
851 | if (Verbose) | |
852 | { | |
853 | printf("ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)\n"); | |
854 | printf("Enter <ruleset> <address>\n"); | |
855 | } | |
15637ed4 RG |
856 | for (;;) |
857 | { | |
858 | register char **pvp; | |
859 | char *q; | |
6f14531a RG |
860 | auto char *delimptr; |
861 | extern bool invalidaddr(); | |
d747e748 | 862 | extern char *crackaddr(); |
15637ed4 | 863 | |
6f14531a RG |
864 | if (Verbose) |
865 | printf("> "); | |
15637ed4 RG |
866 | (void) fflush(stdout); |
867 | if (fgets(buf, sizeof buf, stdin) == NULL) | |
868 | finis(); | |
6f14531a RG |
869 | if (!Verbose) |
870 | printf("> %s", buf); | |
d747e748 JH |
871 | switch (buf[0]) |
872 | { | |
873 | case '#': | |
6f14531a | 874 | continue; |
d747e748 JH |
875 | |
876 | #ifdef MAYBENEXTRELEASE | |
877 | case 'C': /* try crackaddr */ | |
878 | q = crackaddr(&buf[1]); | |
879 | xputs(q); | |
880 | printf("\n"); | |
881 | continue; | |
882 | #endif | |
883 | } | |
884 | ||
6f14531a | 885 | for (p = buf; isascii(*p) && isspace(*p); p++) |
15637ed4 RG |
886 | continue; |
887 | q = p; | |
6f14531a | 888 | while (*p != '\0' && !(isascii(*p) && isspace(*p))) |
15637ed4 RG |
889 | p++; |
890 | if (*p == '\0') | |
6f14531a RG |
891 | { |
892 | printf("No address!\n"); | |
15637ed4 | 893 | continue; |
6f14531a | 894 | } |
15637ed4 | 895 | *p = '\0'; |
d747e748 | 896 | if (invalidaddr(p + 1, NULL)) |
6f14531a | 897 | continue; |
15637ed4 RG |
898 | do |
899 | { | |
15637ed4 RG |
900 | char pvpbuf[PSBUFSIZE]; |
901 | ||
6f14531a | 902 | pvp = prescan(++p, ',', pvpbuf, &delimptr); |
15637ed4 RG |
903 | if (pvp == NULL) |
904 | continue; | |
15637ed4 RG |
905 | p = q; |
906 | while (*p != '\0') | |
907 | { | |
6f14531a RG |
908 | int stat; |
909 | ||
910 | stat = rewrite(pvp, atoi(p), CurEnv); | |
911 | if (stat != EX_OK) | |
912 | printf("== Ruleset %s status %d\n", | |
913 | p, stat); | |
15637ed4 RG |
914 | while (*p != '\0' && *p++ != ',') |
915 | continue; | |
916 | } | |
6f14531a | 917 | } while (*(p = delimptr) != '\0'); |
15637ed4 RG |
918 | } |
919 | } | |
920 | ||
921 | # ifdef QUEUE | |
922 | /* | |
923 | ** If collecting stuff from the queue, go start doing that. | |
924 | */ | |
925 | ||
926 | if (queuemode && OpMode != MD_DAEMON && QueueIntvl == 0) | |
927 | { | |
928 | runqueue(FALSE); | |
929 | finis(); | |
930 | } | |
6f14531a | 931 | # endif /* QUEUE */ |
15637ed4 RG |
932 | |
933 | /* | |
934 | ** If a daemon, wait for a request. | |
935 | ** getrequests will always return in a child. | |
936 | ** If we should also be processing the queue, start | |
937 | ** doing it in background. | |
938 | ** We check for any errors that might have happened | |
939 | ** during startup. | |
940 | */ | |
941 | ||
942 | if (OpMode == MD_DAEMON || QueueIntvl != 0) | |
943 | { | |
6f14531a RG |
944 | char dtype[200]; |
945 | ||
15637ed4 RG |
946 | if (!tTd(0, 1)) |
947 | { | |
948 | /* put us in background */ | |
949 | i = fork(); | |
950 | if (i < 0) | |
951 | syserr("daemon: cannot fork"); | |
952 | if (i != 0) | |
953 | exit(0); | |
954 | ||
15637ed4 | 955 | /* disconnect from our controlling tty */ |
d747e748 | 956 | disconnect(2, CurEnv); |
15637ed4 RG |
957 | } |
958 | ||
6f14531a RG |
959 | dtype[0] = '\0'; |
960 | if (OpMode == MD_DAEMON) | |
961 | strcat(dtype, "+SMTP"); | |
962 | if (QueueIntvl != 0) | |
963 | { | |
964 | strcat(dtype, "+queueing@"); | |
965 | strcat(dtype, pintvl(QueueIntvl, TRUE)); | |
966 | } | |
967 | if (tTd(0, 1)) | |
968 | strcat(dtype, "+debugging"); | |
969 | ||
970 | syslog(LOG_INFO, "starting daemon (%s): %s", Version, dtype + 1); | |
971 | #ifdef XLA | |
972 | xla_create_file(); | |
973 | #endif | |
974 | ||
15637ed4 RG |
975 | # ifdef QUEUE |
976 | if (queuemode) | |
977 | { | |
978 | runqueue(TRUE); | |
979 | if (OpMode != MD_DAEMON) | |
980 | for (;;) | |
981 | pause(); | |
982 | } | |
6f14531a | 983 | # endif /* QUEUE */ |
15637ed4 RG |
984 | dropenvelope(CurEnv); |
985 | ||
986 | #ifdef DAEMON | |
987 | getrequests(); | |
988 | ||
989 | /* at this point we are in a child: reset state */ | |
6f14531a RG |
990 | (void) newenvelope(CurEnv, CurEnv); |
991 | ||
992 | /* | |
993 | ** Get authentication data | |
994 | */ | |
995 | ||
996 | p = getauthinfo(fileno(InChannel)); | |
997 | define('_', p, CurEnv); | |
998 | ||
999 | #endif /* DAEMON */ | |
15637ed4 RG |
1000 | } |
1001 | ||
1002 | # ifdef SMTP | |
1003 | /* | |
1004 | ** If running SMTP protocol, start collecting and executing | |
1005 | ** commands. This will never return. | |
1006 | */ | |
1007 | ||
1008 | if (OpMode == MD_SMTP) | |
6f14531a RG |
1009 | smtp(CurEnv); |
1010 | # endif /* SMTP */ | |
15637ed4 | 1011 | |
d747e748 JH |
1012 | if (OpMode == MD_VERIFY) |
1013 | { | |
1014 | CurEnv->e_sendmode = SM_VERIFY; | |
1015 | CurEnv->e_errormode = EM_QUIET; | |
1016 | } | |
1017 | else | |
1018 | { | |
1019 | /* interactive -- all errors are global */ | |
1020 | CurEnv->e_flags |= EF_GLOBALERRS; | |
1021 | } | |
1022 | ||
15637ed4 RG |
1023 | /* |
1024 | ** Do basic system initialization and set the sender | |
1025 | */ | |
1026 | ||
6f14531a RG |
1027 | initsys(CurEnv); |
1028 | setsender(from, CurEnv, NULL, FALSE); | |
1029 | if (macvalue('s', CurEnv) == NULL) | |
1030 | define('s', RealHostName, CurEnv); | |
15637ed4 | 1031 | |
6f14531a | 1032 | if (*av == NULL && !GrabTo) |
15637ed4 | 1033 | { |
d747e748 | 1034 | CurEnv->e_flags |= EF_GLOBALERRS; |
15637ed4 RG |
1035 | usrerr("Recipient names must be specified"); |
1036 | ||
1037 | /* collect body for UUCP return */ | |
1038 | if (OpMode != MD_VERIFY) | |
6f14531a | 1039 | collect(FALSE, FALSE, CurEnv); |
15637ed4 RG |
1040 | finis(); |
1041 | } | |
15637ed4 RG |
1042 | |
1043 | /* | |
1044 | ** Scan argv and deliver the message to everyone. | |
1045 | */ | |
1046 | ||
6f14531a | 1047 | sendtoargv(av, CurEnv); |
15637ed4 RG |
1048 | |
1049 | /* if we have had errors sofar, arrange a meaningful exit stat */ | |
1050 | if (Errors > 0 && ExitStat == EX_OK) | |
1051 | ExitStat = EX_USAGE; | |
1052 | ||
1053 | /* | |
1054 | ** Read the input mail. | |
1055 | */ | |
1056 | ||
1057 | CurEnv->e_to = NULL; | |
1058 | if (OpMode != MD_VERIFY || GrabTo) | |
d747e748 JH |
1059 | { |
1060 | CurEnv->e_flags |= EF_GLOBALERRS; | |
6f14531a | 1061 | collect(FALSE, FALSE, CurEnv); |
d747e748 | 1062 | } |
15637ed4 RG |
1063 | errno = 0; |
1064 | ||
15637ed4 RG |
1065 | if (tTd(1, 1)) |
1066 | printf("From person = \"%s\"\n", CurEnv->e_from.q_paddr); | |
1067 | ||
1068 | /* | |
1069 | ** Actually send everything. | |
1070 | ** If verifying, just ack. | |
1071 | */ | |
1072 | ||
1073 | CurEnv->e_from.q_flags |= QDONTSEND; | |
6f14531a RG |
1074 | if (tTd(1, 5)) |
1075 | { | |
1076 | printf("main: QDONTSEND "); | |
1077 | printaddr(&CurEnv->e_from, FALSE); | |
1078 | } | |
15637ed4 RG |
1079 | CurEnv->e_to = NULL; |
1080 | sendall(CurEnv, SM_DEFAULT); | |
1081 | ||
1082 | /* | |
6f14531a RG |
1083 | ** All done. |
1084 | ** Don't send return error message if in VERIFY mode. | |
15637ed4 RG |
1085 | */ |
1086 | ||
1087 | finis(); | |
1088 | } | |
1089 | \f/* | |
1090 | ** FINIS -- Clean up and exit. | |
1091 | ** | |
1092 | ** Parameters: | |
1093 | ** none | |
1094 | ** | |
1095 | ** Returns: | |
1096 | ** never | |
1097 | ** | |
1098 | ** Side Effects: | |
1099 | ** exits sendmail | |
1100 | */ | |
1101 | ||
1102 | finis() | |
1103 | { | |
1104 | if (tTd(2, 1)) | |
d747e748 JH |
1105 | printf("\n====finis: stat %d e_flags %o, e_id=%s\n", |
1106 | ExitStat, CurEnv->e_flags, | |
1107 | CurEnv->e_id == NULL ? "NOQUEUE" : CurEnv->e_id); | |
1108 | if (tTd(2, 9)) | |
1109 | printopenfds(FALSE); | |
15637ed4 RG |
1110 | |
1111 | /* clean up temp files */ | |
1112 | CurEnv->e_to = NULL; | |
1113 | dropenvelope(CurEnv); | |
1114 | ||
6f14531a RG |
1115 | /* flush any cached connections */ |
1116 | mci_flush(TRUE, NULL); | |
1117 | ||
6f14531a RG |
1118 | # ifdef XLA |
1119 | /* clean up extended load average stuff */ | |
1120 | xla_all_end(); | |
1121 | # endif | |
1122 | ||
15637ed4 RG |
1123 | /* and exit */ |
1124 | # ifdef LOG | |
6f14531a | 1125 | if (LogLevel > 78) |
15637ed4 | 1126 | syslog(LOG_DEBUG, "finis, pid=%d", getpid()); |
6f14531a | 1127 | # endif /* LOG */ |
15637ed4 RG |
1128 | if (ExitStat == EX_TEMPFAIL) |
1129 | ExitStat = EX_OK; | |
3a363396 NW |
1130 | |
1131 | /* reset uid for process accounting */ | |
1132 | setuid(RealUid); | |
1133 | ||
15637ed4 RG |
1134 | exit(ExitStat); |
1135 | } | |
1136 | \f/* | |
1137 | ** INTSIG -- clean up on interrupt | |
1138 | ** | |
1139 | ** This just arranges to exit. It pessimises in that it | |
1140 | ** may resend a message. | |
1141 | ** | |
1142 | ** Parameters: | |
1143 | ** none. | |
1144 | ** | |
1145 | ** Returns: | |
1146 | ** none. | |
1147 | ** | |
1148 | ** Side Effects: | |
1149 | ** Unlocks the current job. | |
1150 | */ | |
1151 | ||
1152 | void | |
1153 | intsig() | |
1154 | { | |
1155 | FileName = NULL; | |
1156 | unlockqueue(CurEnv); | |
6f14531a RG |
1157 | #ifdef XLA |
1158 | xla_all_end(); | |
1159 | #endif | |
3a363396 NW |
1160 | |
1161 | /* reset uid for process accounting */ | |
1162 | setuid(RealUid); | |
1163 | ||
15637ed4 RG |
1164 | exit(EX_OK); |
1165 | } | |
1166 | \f/* | |
1167 | ** INITMACROS -- initialize the macro system | |
1168 | ** | |
1169 | ** This just involves defining some macros that are actually | |
1170 | ** used internally as metasymbols to be themselves. | |
1171 | ** | |
1172 | ** Parameters: | |
1173 | ** none. | |
1174 | ** | |
1175 | ** Returns: | |
1176 | ** none. | |
1177 | ** | |
1178 | ** Side Effects: | |
1179 | ** initializes several macros to be themselves. | |
1180 | */ | |
1181 | ||
15637ed4 RG |
1182 | struct metamac MetaMacros[] = |
1183 | { | |
1184 | /* LHS pattern matching characters */ | |
6f14531a RG |
1185 | '*', MATCHZANY, '+', MATCHANY, '-', MATCHONE, |
1186 | '=', MATCHCLASS, '~', MATCHNCLASS, | |
15637ed4 RG |
1187 | |
1188 | /* these are RHS metasymbols */ | |
6f14531a RG |
1189 | '#', CANONNET, '@', CANONHOST, ':', CANONUSER, |
1190 | '>', CALLSUBR, | |
15637ed4 RG |
1191 | |
1192 | /* the conditional operations */ | |
6f14531a RG |
1193 | '?', CONDIF, '|', CONDELSE, '.', CONDFI, |
1194 | ||
1195 | /* the hostname lookup characters */ | |
1196 | '[', HOSTBEGIN, ']', HOSTEND, | |
1197 | '(', LOOKUPBEGIN, ')', LOOKUPEND, | |
15637ed4 | 1198 | |
6f14531a RG |
1199 | /* miscellaneous control characters */ |
1200 | '&', MACRODEXPAND, | |
15637ed4 RG |
1201 | |
1202 | '\0' | |
1203 | }; | |
1204 | ||
d747e748 JH |
1205 | initmacros(e) |
1206 | register ENVELOPE *e; | |
15637ed4 RG |
1207 | { |
1208 | register struct metamac *m; | |
1209 | char buf[5]; | |
1210 | register int c; | |
1211 | ||
1212 | for (m = MetaMacros; m->metaname != '\0'; m++) | |
1213 | { | |
1214 | buf[0] = m->metaval; | |
1215 | buf[1] = '\0'; | |
d747e748 | 1216 | define(m->metaname, newstr(buf), e); |
15637ed4 RG |
1217 | } |
1218 | buf[0] = MATCHREPL; | |
1219 | buf[2] = '\0'; | |
1220 | for (c = '0'; c <= '9'; c++) | |
1221 | { | |
1222 | buf[1] = c; | |
d747e748 | 1223 | define(c, newstr(buf), e); |
15637ed4 RG |
1224 | } |
1225 | ||
d747e748 JH |
1226 | /* set defaults for some macros sendmail will use later */ |
1227 | define('e', "\201j Sendmail \201v ready at \201b", e); | |
1228 | define('l', "From \201g \201d", e); | |
1229 | define('n', "MAILER-DAEMON", e); | |
1230 | define('o', ".:@[]", e); | |
1231 | define('q', "<\201g>", e); | |
15637ed4 RG |
1232 | } |
1233 | \f/* | |
15637ed4 RG |
1234 | ** DISCONNECT -- remove our connection with any foreground process |
1235 | ** | |
1236 | ** Parameters: | |
d747e748 JH |
1237 | ** droplev -- how "deeply" we should drop the line. |
1238 | ** 0 -- ignore signals, mail back errors, make sure | |
1239 | ** output goes to stdout. | |
1240 | ** 1 -- also, make stdout go to transcript. | |
1241 | ** 2 -- also, disconnect from controlling terminal | |
1242 | ** (only for daemon mode). | |
1243 | ** e -- the current envelope. | |
15637ed4 RG |
1244 | ** |
1245 | ** Returns: | |
1246 | ** none | |
1247 | ** | |
1248 | ** Side Effects: | |
1249 | ** Trys to insure that we are immune to vagaries of | |
1250 | ** the controlling tty. | |
1251 | */ | |
1252 | ||
d747e748 JH |
1253 | disconnect(droplev, e) |
1254 | int droplev; | |
6f14531a | 1255 | register ENVELOPE *e; |
15637ed4 RG |
1256 | { |
1257 | int fd; | |
1258 | ||
1259 | if (tTd(52, 1)) | |
6f14531a RG |
1260 | printf("disconnect: In %d Out %d, e=%x\n", |
1261 | fileno(InChannel), fileno(OutChannel), e); | |
15637ed4 RG |
1262 | if (tTd(52, 5)) |
1263 | { | |
1264 | printf("don't\n"); | |
1265 | return; | |
1266 | } | |
1267 | ||
1268 | /* be sure we don't get nasty signals */ | |
d747e748 JH |
1269 | (void) setsignal(SIGHUP, SIG_IGN); |
1270 | (void) setsignal(SIGINT, SIG_IGN); | |
1271 | (void) setsignal(SIGQUIT, SIG_IGN); | |
15637ed4 RG |
1272 | |
1273 | /* we can't communicate with our caller, so.... */ | |
1274 | HoldErrs = TRUE; | |
6f14531a | 1275 | CurEnv->e_errormode = EM_MAIL; |
15637ed4 RG |
1276 | Verbose = FALSE; |
1277 | ||
1278 | /* all input from /dev/null */ | |
1279 | if (InChannel != stdin) | |
1280 | { | |
1281 | (void) fclose(InChannel); | |
1282 | InChannel = stdin; | |
1283 | } | |
1284 | (void) freopen("/dev/null", "r", stdin); | |
1285 | ||
1286 | /* output to the transcript */ | |
1287 | if (OutChannel != stdout) | |
1288 | { | |
1289 | (void) fclose(OutChannel); | |
1290 | OutChannel = stdout; | |
1291 | } | |
d747e748 JH |
1292 | if (droplev > 0) |
1293 | { | |
1294 | if (e->e_xfp == NULL) | |
1295 | fd = open("/dev/null", O_WRONLY, 0666); | |
1296 | else | |
1297 | fd = fileno(e->e_xfp); | |
1298 | (void) fflush(stdout); | |
1299 | dup2(fd, STDOUT_FILENO); | |
1300 | dup2(fd, STDERR_FILENO); | |
1301 | if (e->e_xfp == NULL) | |
1302 | close(fd); | |
1303 | } | |
15637ed4 RG |
1304 | |
1305 | /* drop our controlling TTY completely if possible */ | |
d747e748 | 1306 | if (droplev > 1) |
15637ed4 | 1307 | { |
6f14531a | 1308 | (void) setsid(); |
15637ed4 RG |
1309 | errno = 0; |
1310 | } | |
1311 | ||
d747e748 JH |
1312 | #ifdef XDEBUG |
1313 | checkfd012("disconnect"); | |
1314 | #endif | |
1315 | ||
15637ed4 | 1316 | # ifdef LOG |
6f14531a | 1317 | if (LogLevel > 71) |
15637ed4 | 1318 | syslog(LOG_DEBUG, "in background, pid=%d", getpid()); |
6f14531a | 1319 | # endif /* LOG */ |
15637ed4 RG |
1320 | |
1321 | errno = 0; | |
1322 | } | |
6f14531a RG |
1323 | |
1324 | static void | |
1325 | obsolete(argv) | |
1326 | char *argv[]; | |
1327 | { | |
1328 | char *ap; | |
1329 | ||
1330 | while ((ap = *++argv) != NULL) | |
1331 | { | |
1332 | /* Return if "--" or not an option of any form. */ | |
1333 | if (ap[0] != '-' || ap[1] == '-') | |
1334 | return; | |
1335 | ||
1336 | /* If -C doesn't have an argument, use sendmail.cf. */ | |
1337 | #define __DEFPATH "sendmail.cf" | |
1338 | if (ap[1] == 'C' && ap[2] == '\0' && | |
1339 | (argv[1] == NULL || argv[1][0] == '-')) | |
1340 | { | |
1341 | *argv = xalloc(sizeof(__DEFPATH) + 2); | |
1342 | argv[0][0] = '-'; | |
1343 | argv[0][1] = 'C'; | |
1344 | (void)strcpy(&argv[0][2], __DEFPATH); | |
1345 | } | |
1346 | ||
1347 | /* If -q doesn't have an argument, run it once. */ | |
1348 | if (ap[1] == 'q' && ap[2] == '\0' && | |
1349 | (argv[1] == NULL || argv[1][0] == '-')) | |
1350 | *argv = "-q0"; | |
1351 | ||
1352 | /* if -d doesn't have an argument, use 0-99.1 */ | |
1353 | if (ap[1] == 'd' && ap[2] == '\0' && | |
1354 | (argv[1] == NULL || !isdigit(argv[1][0]))) | |
1355 | *argv = "-d0-99.1"; | |
1356 | } | |
1357 | } | |
1358 | \f/* | |
1359 | ** AUTH_WARNING -- specify authorization warning | |
1360 | ** | |
1361 | ** Parameters: | |
1362 | ** e -- the current envelope. | |
1363 | ** msg -- the text of the message. | |
1364 | ** args -- arguments to the message. | |
1365 | ** | |
1366 | ** Returns: | |
1367 | ** none. | |
1368 | */ | |
1369 | ||
1370 | void | |
1371 | #ifdef __STDC__ | |
1372 | auth_warning(register ENVELOPE *e, const char *msg, ...) | |
1373 | #else | |
1374 | auth_warning(e, msg, va_alist) | |
1375 | register ENVELOPE *e; | |
1376 | const char *msg; | |
1377 | va_dcl | |
1378 | #endif | |
1379 | { | |
1380 | char buf[MAXLINE]; | |
1381 | VA_LOCAL_DECL | |
1382 | ||
1383 | if (bitset(PRIV_AUTHWARNINGS, PrivacyFlags)) | |
1384 | { | |
1385 | register char *p; | |
1386 | static char hostbuf[48]; | |
1387 | extern char **myhostname(); | |
1388 | ||
1389 | if (hostbuf[0] == '\0') | |
1390 | (void) myhostname(hostbuf, sizeof hostbuf); | |
1391 | ||
1392 | (void) sprintf(buf, "%s: ", hostbuf); | |
1393 | p = &buf[strlen(buf)]; | |
1394 | VA_START(msg); | |
1395 | vsprintf(p, msg, ap); | |
1396 | VA_END; | |
1397 | addheader("X-Authentication-Warning", buf, e); | |
1398 | } | |
1399 | } |