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Commit | Line | Data |
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86e4d161 MS |
1 | /* |
2 | * Copyright (c) 2008 The DragonFly Project. All rights reserved. | |
3 | * | |
4 | * This code is derived from software contributed to The DragonFly Project | |
5 | * by Simon 'corecode' Schubert <corecode@fs.ei.tum.de>. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * 3. Neither the name of The DragonFly Project nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific, prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
24 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
25 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
26 | * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
27 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
28 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
29 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
31 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
32 | * SUCH DAMAGE. | |
86e4d161 MS |
33 | */ |
34 | ||
9b921550 SS |
35 | #include "dfcompat.h" |
36 | ||
86e4d161 | 37 | #include <sys/param.h> |
4dd56cbc | 38 | #include <sys/types.h> |
86e4d161 MS |
39 | #include <sys/queue.h> |
40 | #include <sys/stat.h> | |
9b921550 | 41 | #include <sys/time.h> |
c507d897 | 42 | #include <sys/wait.h> |
86e4d161 | 43 | |
86e4d161 MS |
44 | #include <dirent.h> |
45 | #include <err.h> | |
46 | #include <errno.h> | |
47 | #include <fcntl.h> | |
48 | #include <inttypes.h> | |
86e4d161 MS |
49 | #include <paths.h> |
50 | #include <pwd.h> | |
51 | #include <signal.h> | |
52 | #include <stdarg.h> | |
53 | #include <stdio.h> | |
54 | #include <stdlib.h> | |
55 | #include <string.h> | |
56 | #include <syslog.h> | |
57 | #include <unistd.h> | |
58 | ||
59 | #include "dma.h" | |
60 | ||
61 | ||
e0a95d28 | 62 | static void deliver(struct qitem *); |
86e4d161 MS |
63 | |
64 | struct aliases aliases = LIST_HEAD_INITIALIZER(aliases); | |
fd1de51a | 65 | struct strlist tmpfs = SLIST_HEAD_INITIALIZER(tmpfs); |
86e4d161 | 66 | struct authusers authusers = LIST_HEAD_INITIALIZER(authusers); |
249ee966 | 67 | char username[USERNAME_SIZE]; |
75fdf182 | 68 | uid_t useruid; |
de13a881 | 69 | const char *logident_base; |
249ee966 | 70 | char errmsg[ERRMSG_SIZE]; |
86e4d161 | 71 | |
87bdbc01 | 72 | static int daemonize = 1; |
dd561a09 | 73 | |
a0c4afa6 SS |
74 | struct config config = { |
75 | .smarthost = NULL, | |
76 | .port = 25, | |
db93ed9b | 77 | .aliases = "/etc/aliases", |
a0c4afa6 | 78 | .spooldir = "/var/spool/dma", |
a0c4afa6 SS |
79 | .authpath = NULL, |
80 | .certfile = NULL, | |
81 | .features = 0, | |
82 | .mailname = NULL, | |
5bc72de8 SS |
83 | .masquerade_host = NULL, |
84 | .masquerade_user = NULL, | |
a0c4afa6 SS |
85 | }; |
86 | ||
87 | ||
247523d6 SS |
88 | static void |
89 | sighup_handler(int signo) | |
90 | { | |
91 | (void)signo; /* so that gcc doesn't complain */ | |
92 | } | |
93 | ||
86e4d161 | 94 | static char * |
057afad5 | 95 | set_from(struct queue *queue, const char *osender) |
86e4d161 | 96 | { |
86e4d161 MS |
97 | char *sender; |
98 | ||
86e4d161 MS |
99 | if (osender) { |
100 | sender = strdup(osender); | |
101 | if (sender == NULL) | |
e0a95d28 | 102 | return (NULL); |
09a2b07e SS |
103 | } else if (getenv("EMAIL") != NULL) { |
104 | sender = strdup(getenv("EMAIL")); | |
105 | if (sender == NULL) | |
106 | return (NULL); | |
86e4d161 | 107 | } else { |
5bc72de8 SS |
108 | const char *from_user = username; |
109 | const char *from_host = hostname(); | |
110 | ||
111 | if (config.masquerade_user) | |
112 | from_user = config.masquerade_user; | |
113 | if (config.masquerade_host) | |
114 | from_host = config.masquerade_host; | |
115 | if (asprintf(&sender, "%s@%s", from_user, from_host) <= 0) | |
e0a95d28 | 116 | return (NULL); |
86e4d161 MS |
117 | } |
118 | ||
119 | if (strchr(sender, '\n') != NULL) { | |
120 | errno = EINVAL; | |
e0a95d28 | 121 | return (NULL); |
86e4d161 MS |
122 | } |
123 | ||
057afad5 | 124 | queue->sender = sender; |
e0a95d28 | 125 | return (sender); |
86e4d161 MS |
126 | } |
127 | ||
128 | static int | |
129 | read_aliases(void) | |
130 | { | |
a0c4afa6 SS |
131 | yyin = fopen(config.aliases, "r"); |
132 | if (yyin == NULL) { | |
133 | /* | |
134 | * Non-existing aliases file is not a fatal error | |
135 | */ | |
136 | if (errno == ENOENT) | |
137 | return (0); | |
138 | /* Other problems are. */ | |
139 | return (-1); | |
140 | } | |
86e4d161 | 141 | if (yyparse()) |
e0a95d28 | 142 | return (-1); /* fatal error, probably malloc() */ |
86e4d161 | 143 | fclose(yyin); |
e0a95d28 | 144 | return (0); |
86e4d161 MS |
145 | } |
146 | ||
fd1de51a | 147 | int |
057afad5 | 148 | add_recp(struct queue *queue, const char *str, int expand) |
86e4d161 MS |
149 | { |
150 | struct qitem *it, *tit; | |
151 | struct stritem *sit; | |
152 | struct alias *al; | |
153 | struct passwd *pw; | |
154 | char *host; | |
155 | int aliased = 0; | |
156 | ||
157 | it = calloc(1, sizeof(*it)); | |
158 | if (it == NULL) | |
e0a95d28 | 159 | return (-1); |
86e4d161 MS |
160 | it->addr = strdup(str); |
161 | if (it->addr == NULL) | |
e0a95d28 | 162 | return (-1); |
86e4d161 | 163 | |
057afad5 | 164 | it->sender = queue->sender; |
86e4d161 MS |
165 | host = strrchr(it->addr, '@'); |
166 | if (host != NULL && | |
167 | (strcmp(host + 1, hostname()) == 0 || | |
168 | strcmp(host + 1, "localhost") == 0)) { | |
169 | *host = 0; | |
170 | } | |
171 | LIST_FOREACH(tit, &queue->queue, next) { | |
172 | /* weed out duplicate dests */ | |
173 | if (strcmp(tit->addr, it->addr) == 0) { | |
174 | free(it->addr); | |
175 | free(it); | |
e0a95d28 | 176 | return (0); |
86e4d161 MS |
177 | } |
178 | } | |
179 | LIST_INSERT_HEAD(&queue->queue, it, next); | |
180 | if (strrchr(it->addr, '@') == NULL) { | |
e0a95d28 | 181 | it->remote = 0; |
86e4d161 MS |
182 | if (expand) { |
183 | LIST_FOREACH(al, &aliases, next) { | |
184 | if (strcmp(al->alias, it->addr) != 0) | |
185 | continue; | |
186 | SLIST_FOREACH(sit, &al->dests, next) { | |
057afad5 | 187 | if (add_recp(queue, sit->str, 1) != 0) |
e0a95d28 | 188 | return (-1); |
86e4d161 MS |
189 | } |
190 | aliased = 1; | |
191 | } | |
192 | if (aliased) { | |
193 | LIST_REMOVE(it, next); | |
194 | } else { | |
e0a95d28 | 195 | /* Local destination, check */ |
86e4d161 MS |
196 | pw = getpwnam(it->addr); |
197 | if (pw == NULL) | |
198 | goto out; | |
8d291e4d | 199 | /* XXX read .forward */ |
e0a95d28 | 200 | endpwent(); |
86e4d161 MS |
201 | } |
202 | } | |
203 | } else { | |
e0a95d28 | 204 | it->remote = 1; |
86e4d161 MS |
205 | } |
206 | ||
e0a95d28 | 207 | return (0); |
86e4d161 MS |
208 | |
209 | out: | |
210 | free(it->addr); | |
211 | free(it); | |
e0a95d28 | 212 | return (-1); |
86e4d161 MS |
213 | } |
214 | ||
e0a95d28 MS |
215 | static struct qitem * |
216 | go_background(struct queue *queue) | |
86e4d161 MS |
217 | { |
218 | struct sigaction sa; | |
219 | struct qitem *it; | |
220 | pid_t pid; | |
221 | ||
222 | if (daemonize && daemon(0, 0) != 0) { | |
e0a95d28 | 223 | syslog(LOG_ERR, "can not daemonize: %m"); |
86e4d161 MS |
224 | exit(1); |
225 | } | |
226 | daemonize = 0; | |
e0a95d28 | 227 | |
86e4d161 | 228 | bzero(&sa, sizeof(sa)); |
86e4d161 MS |
229 | sa.sa_handler = SIG_IGN; |
230 | sigaction(SIGCHLD, &sa, NULL); | |
231 | ||
94389971 | 232 | LIST_FOREACH(it, &queue->queue, next) { |
e0a95d28 | 233 | /* No need to fork for the last dest */ |
87bdbc01 SS |
234 | if (LIST_NEXT(it, next) == NULL) |
235 | goto retit; | |
e0a95d28 | 236 | |
86e4d161 MS |
237 | pid = fork(); |
238 | switch (pid) { | |
239 | case -1: | |
240 | syslog(LOG_ERR, "can not fork: %m"); | |
241 | exit(1); | |
242 | break; | |
243 | ||
244 | case 0: | |
245 | /* | |
246 | * Child: | |
247 | * | |
248 | * return and deliver mail | |
249 | */ | |
87bdbc01 SS |
250 | retit: |
251 | /* | |
9aec6ad8 | 252 | * If necessary, acquire the queue and * mail files. |
87bdbc01 SS |
253 | * If this fails, we probably were raced by another |
254 | * process. | |
255 | */ | |
4d5af2b0 | 256 | setlogident("%s", it->queueid); |
9aec6ad8 | 257 | if (acquirespool(it) < 0) |
87bdbc01 SS |
258 | exit(1); |
259 | dropspool(queue, it); | |
e0a95d28 | 260 | return (it); |
86e4d161 MS |
261 | |
262 | default: | |
263 | /* | |
264 | * Parent: | |
265 | * | |
266 | * fork next child | |
267 | */ | |
268 | break; | |
269 | } | |
270 | } | |
271 | ||
272 | syslog(LOG_CRIT, "reached dead code"); | |
273 | exit(1); | |
274 | } | |
275 | ||
86e4d161 | 276 | static void |
e0a95d28 | 277 | deliver(struct qitem *it) |
86e4d161 MS |
278 | { |
279 | int error; | |
f54b5114 | 280 | unsigned int backoff = MIN_RETRY; |
86e4d161 MS |
281 | struct timeval now; |
282 | struct stat st; | |
283 | ||
249ee966 SS |
284 | snprintf(errmsg, sizeof(errmsg), "unknown bounce reason"); |
285 | ||
86e4d161 | 286 | retry: |
4d5af2b0 | 287 | syslog(LOG_INFO, "trying delivery"); |
86e4d161 | 288 | |
e0a95d28 | 289 | if (it->remote) |
249ee966 | 290 | error = deliver_remote(it); |
e0a95d28 | 291 | else |
249ee966 | 292 | error = deliver_local(it); |
86e4d161 MS |
293 | |
294 | switch (error) { | |
295 | case 0: | |
fd1de51a | 296 | delqueue(it); |
4d5af2b0 | 297 | syslog(LOG_INFO, "delivery successful"); |
86e4d161 MS |
298 | exit(0); |
299 | ||
300 | case 1: | |
301 | if (stat(it->queuefn, &st) != 0) { | |
4d5af2b0 | 302 | syslog(LOG_ERR, "lost queue file `%s'", it->queuefn); |
86e4d161 MS |
303 | exit(1); |
304 | } | |
305 | if (gettimeofday(&now, NULL) == 0 && | |
2fbb30b2 | 306 | (now.tv_sec - st.st_mtim.tv_sec > MAX_TIMEOUT)) { |
249ee966 | 307 | snprintf(errmsg, sizeof(errmsg), |
e0a95d28 | 308 | "Could not deliver for the last %d seconds. Giving up.", |
a43346d5 | 309 | MAX_TIMEOUT); |
86e4d161 MS |
310 | goto bounce; |
311 | } | |
0de88752 SS |
312 | if (sleep(backoff) == 0) { |
313 | /* pick the next backoff between [1.5, 2.5) times backoff */ | |
314 | backoff = backoff + backoff / 2 + random() % backoff; | |
315 | if (backoff > MAX_RETRY) | |
316 | backoff = MAX_RETRY; | |
317 | } | |
86e4d161 MS |
318 | goto retry; |
319 | ||
320 | case -1: | |
321 | default: | |
322 | break; | |
323 | } | |
324 | ||
325 | bounce: | |
e0a95d28 | 326 | bounce(it, errmsg); |
86e4d161 MS |
327 | /* NOTREACHED */ |
328 | } | |
329 | ||
28be0b96 | 330 | void |
86e4d161 MS |
331 | run_queue(struct queue *queue) |
332 | { | |
e0a95d28 MS |
333 | struct qitem *it; |
334 | ||
86e4d161 MS |
335 | if (LIST_EMPTY(&queue->queue)) |
336 | return; | |
337 | ||
e0a95d28 MS |
338 | it = go_background(queue); |
339 | deliver(it); | |
86e4d161 MS |
340 | /* NOTREACHED */ |
341 | } | |
342 | ||
343 | static void | |
344 | show_queue(struct queue *queue) | |
345 | { | |
346 | struct qitem *it; | |
87bdbc01 | 347 | int locked = 0; /* XXX */ |
86e4d161 MS |
348 | |
349 | if (LIST_EMPTY(&queue->queue)) { | |
350 | printf("Mail queue is empty\n"); | |
351 | return; | |
352 | } | |
353 | ||
354 | LIST_FOREACH(it, &queue->queue, next) { | |
5896fefc SS |
355 | printf("ID\t: %s%s\n" |
356 | "From\t: %s\n" | |
553ab44c | 357 | "To\t: %s\n", |
5896fefc | 358 | it->queueid, |
87bdbc01 | 359 | locked ? "*" : "", |
5896fefc | 360 | it->sender, it->addr); |
553ab44c SS |
361 | |
362 | if (LIST_NEXT(it, next) != NULL) | |
363 | printf("--\n"); | |
86e4d161 MS |
364 | } |
365 | } | |
366 | ||
367 | /* | |
368 | * TODO: | |
369 | * | |
370 | * - alias processing | |
371 | * - use group permissions | |
372 | * - proper sysexit codes | |
373 | */ | |
374 | ||
e0a95d28 MS |
375 | int |
376 | main(int argc, char **argv) | |
86e4d161 | 377 | { |
247523d6 | 378 | struct sigaction act; |
86e4d161 | 379 | char *sender = NULL; |
86e4d161 | 380 | struct queue queue; |
86e4d161 | 381 | int i, ch; |
bca4c72a | 382 | int nodot = 0, doqueue = 0, showq = 0, queue_only = 0; |
f734c0ae | 383 | int recp_from_header = 0; |
86e4d161 | 384 | |
75fdf182 SS |
385 | set_username(); |
386 | ||
387 | /* | |
388 | * We never run as root. If called by root, drop permissions | |
389 | * to the mail user. | |
390 | */ | |
391 | if (geteuid() == 0 || getuid() == 0) { | |
392 | struct passwd *pw; | |
393 | ||
394 | pw = getpwnam(DMA_ROOT_USER); | |
395 | if (pw == NULL) | |
396 | err(1, "cannot drop root privileges"); | |
397 | ||
398 | if (setuid(pw->pw_uid) != 0) | |
399 | err(1, "cannot drop root privileges"); | |
400 | ||
401 | if (geteuid() == 0 || getuid() == 0) | |
402 | errx(1, "cannot drop root privileges"); | |
403 | } | |
404 | ||
86e4d161 | 405 | atexit(deltmp); |
ee613428 | 406 | init_random(); |
6f5efe4f SS |
407 | |
408 | bzero(&queue, sizeof(queue)); | |
86e4d161 | 409 | LIST_INIT(&queue.queue); |
86e4d161 | 410 | |
0f779ba6 SS |
411 | if (strcmp(argv[0], "mailq") == 0) { |
412 | argv++; argc--; | |
413 | showq = 1; | |
414 | if (argc != 0) | |
415 | errx(1, "invalid arguments"); | |
416 | goto skipopts; | |
417 | } | |
418 | ||
87fa1cc5 | 419 | opterr = 0; |
f734c0ae | 420 | while ((ch = getopt(argc, argv, ":A:b:B:C:d:Df:F:h:iL:N:no:O:q:r:R:tUV:vX:")) != -1) { |
86e4d161 MS |
421 | switch (ch) { |
422 | case 'A': | |
423 | /* -AX is being ignored, except for -A{c,m} */ | |
424 | if (optarg[0] == 'c' || optarg[0] == 'm') { | |
425 | break; | |
426 | } | |
427 | /* else FALLTRHOUGH */ | |
428 | case 'b': | |
429 | /* -bX is being ignored, except for -bp */ | |
430 | if (optarg[0] == 'p') { | |
431 | showq = 1; | |
432 | break; | |
bca4c72a SS |
433 | } else if (optarg[0] == 'q') { |
434 | queue_only = 1; | |
435 | break; | |
86e4d161 MS |
436 | } |
437 | /* else FALLTRHOUGH */ | |
438 | case 'D': | |
439 | daemonize = 0; | |
440 | break; | |
441 | case 'L': | |
4d5af2b0 | 442 | logident_base = optarg; |
86e4d161 MS |
443 | break; |
444 | case 'f': | |
445 | case 'r': | |
446 | sender = optarg; | |
447 | break; | |
448 | ||
f734c0ae SS |
449 | case 't': |
450 | recp_from_header = 1; | |
451 | break; | |
452 | ||
86e4d161 MS |
453 | case 'o': |
454 | /* -oX is being ignored, except for -oi */ | |
455 | if (optarg[0] != 'i') | |
456 | break; | |
457 | /* else FALLTRHOUGH */ | |
87fa1cc5 MS |
458 | case 'O': |
459 | break; | |
86e4d161 MS |
460 | case 'i': |
461 | nodot = 1; | |
462 | break; | |
463 | ||
464 | case 'q': | |
465 | doqueue = 1; | |
466 | break; | |
467 | ||
b6bb4e2d SS |
468 | /* Ignored options */ |
469 | case 'B': | |
470 | case 'C': | |
471 | case 'd': | |
472 | case 'F': | |
473 | case 'h': | |
474 | case 'N': | |
475 | case 'n': | |
476 | case 'R': | |
477 | case 'U': | |
478 | case 'V': | |
479 | case 'v': | |
480 | case 'X': | |
481 | break; | |
482 | ||
f514a0d9 SS |
483 | case ':': |
484 | if (optopt == 'q') { | |
485 | doqueue = 1; | |
486 | break; | |
487 | } | |
488 | /* FALLTHROUGH */ | |
489 | ||
86e4d161 | 490 | default: |
f514a0d9 | 491 | fprintf(stderr, "invalid argument: `-%c'\n", optopt); |
86e4d161 MS |
492 | exit(1); |
493 | } | |
494 | } | |
495 | argc -= optind; | |
496 | argv += optind; | |
87fa1cc5 | 497 | opterr = 1; |
86e4d161 | 498 | |
8d291e4d SS |
499 | if (argc != 0 && (showq || doqueue)) |
500 | errx(1, "sending mail and queue operations are mutually exclusive"); | |
501 | ||
502 | if (showq + doqueue > 1) | |
503 | errx(1, "conflicting queue operations"); | |
504 | ||
0f779ba6 | 505 | skipopts: |
4d5af2b0 SS |
506 | if (logident_base == NULL) |
507 | logident_base = "dma"; | |
508 | setlogident(NULL); | |
4602c807 | 509 | |
247523d6 SS |
510 | act.sa_handler = sighup_handler; |
511 | act.sa_flags = 0; | |
512 | sigemptyset(&act.sa_mask); | |
513 | if (sigaction(SIGHUP, &act, NULL) != 0) | |
514 | syslog(LOG_WARNING, "can not set signal handler: %m"); | |
515 | ||
a0c4afa6 | 516 | parse_conf(CONF_PATH); |
86e4d161 | 517 | |
a0c4afa6 SS |
518 | if (config.authpath != NULL) |
519 | parse_authfile(config.authpath); | |
86e4d161 MS |
520 | |
521 | if (showq) { | |
6f5efe4f | 522 | if (load_queue(&queue) < 0) |
de13a881 | 523 | errlog(1, "can not load queue"); |
6f5efe4f | 524 | show_queue(&queue); |
e0a95d28 | 525 | return (0); |
86e4d161 MS |
526 | } |
527 | ||
528 | if (doqueue) { | |
6f5efe4f | 529 | if (load_queue(&queue) < 0) |
de13a881 | 530 | errlog(1, "can not load queue"); |
6f5efe4f | 531 | run_queue(&queue); |
e0a95d28 | 532 | return (0); |
86e4d161 MS |
533 | } |
534 | ||
e0a95d28 | 535 | if (read_aliases() != 0) |
a0c4afa6 | 536 | errlog(1, "can not read aliases file `%s'", config.aliases); |
86e4d161 | 537 | |
057afad5 | 538 | if ((sender = set_from(&queue, sender)) == NULL) |
de13a881 | 539 | errlog(1, NULL); |
86e4d161 | 540 | |
f734c0ae SS |
541 | if (newspoolf(&queue) != 0) |
542 | errlog(1, "can not create temp file"); | |
543 | ||
544 | setlogident("%s", queue.id); | |
545 | ||
86e4d161 | 546 | for (i = 0; i < argc; i++) { |
057afad5 | 547 | if (add_recp(&queue, argv[i], 1) != 0) |
de13a881 | 548 | errlogx(1, "invalid recipient `%s'", argv[i]); |
86e4d161 MS |
549 | } |
550 | ||
f734c0ae | 551 | if (LIST_EMPTY(&queue.queue) && !recp_from_header) |
de13a881 | 552 | errlogx(1, "no recipients"); |
86e4d161 | 553 | |
f734c0ae | 554 | if (readmail(&queue, nodot, recp_from_header) != 0) |
de13a881 | 555 | errlog(1, "can not read mail"); |
86e4d161 | 556 | |
f734c0ae SS |
557 | if (LIST_EMPTY(&queue.queue)) |
558 | errlogx(1, "no recipients"); | |
559 | ||
057afad5 | 560 | if (linkspool(&queue) != 0) |
de13a881 | 561 | errlog(1, "can not create spools"); |
86e4d161 MS |
562 | |
563 | /* From here on the mail is safe. */ | |
564 | ||
a0c4afa6 | 565 | if (config.features & DEFER || queue_only) |
e0a95d28 | 566 | return (0); |
86e4d161 | 567 | |
28be0b96 | 568 | run_queue(&queue); |
86e4d161 MS |
569 | |
570 | /* NOTREACHED */ | |
e0a95d28 | 571 | return (0); |
94389971 | 572 | } |