masqmail-0.2
view src/masqmail.c @ 132:2685e59f6f43
small clarity improvement
| author | meillo@marmaro.de |
|---|---|
| date | Tue, 06 Jul 2010 13:02:49 +0200 |
| parents | c678d0342451 |
| children | 2ac8a66ee108 |
line source
1 /* MasqMail
2 Copyright (C) 1999-2001 Oliver Kurth
3 Copyright (C) 2010 markus schnalke <meillo@marmaro.de>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
20 #include <stdio.h>
21 #include <errno.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <unistd.h>
25 #include <sys/types.h>
26 #include <sys/socket.h>
27 #include <sys/time.h>
28 #include <netinet/in.h>
29 #include <netdb.h>
30 #include <syslog.h>
31 #include <signal.h>
33 #include <glib.h>
35 #include "masqmail.h"
37 /* mutually exclusive modes. Note that there is neither a 'get' mode
38 nor a 'queue daemon' mode. These, as well as the distinction beween
39 the two (non exclusive) daemon (queue and listen) modes are handled
40 by flags.*/
41 typedef enum _mta_mode {
42 MODE_ACCEPT = 0, /* accept message on stdin */
43 MODE_DAEMON, /* run as daemon */
44 MODE_RUNQUEUE, /* single queue run, online or offline */
45 MODE_GET_DAEMON, /* run as get (retrieve) daemon */
46 MODE_SMTP, /* accept SMTP on stdin */
47 MODE_LIST, /* list queue */
48 MODE_MCMD, /* do queue manipulation */
49 MODE_VERSION, /* show version */
50 MODE_BI, /* fake ;-) */
51 MODE_NONE /* to prevent default MODE_ACCEPT */
52 } mta_mode;
54 char *pidfile = NULL;
55 volatile int sigterm_in_progress = 0;
57 static void
58 sigterm_handler(int sig)
59 {
60 if (sigterm_in_progress)
61 raise(sig);
62 sigterm_in_progress = 1;
64 if (pidfile) {
65 uid_t uid;
66 uid = seteuid(0);
67 if (unlink(pidfile) != 0)
68 logwrite(LOG_WARNING, "could not delete pid file %s: %s\n", pidfile, strerror(errno));
69 seteuid(uid); /* we exit anyway after this, just to be sure */
70 }
72 signal(sig, SIG_DFL);
73 raise(sig);
74 }
76 #ifdef ENABLE_IDENT /* so far used for that only */
77 static gboolean
78 is_in_netlist(gchar * host, GList * netlist)
79 {
80 guint hostip = inet_addr(host);
81 struct in_addr addr;
83 addr.s_addr = hostip;
84 if (addr.s_addr != INADDR_NONE) {
85 GList *node;
86 foreach(netlist, node) {
87 struct in_addr *net = (struct in_addr *) (node->data);
88 if ((addr.s_addr & net->s_addr) == net->s_addr)
89 return TRUE;
90 }
91 }
92 return FALSE;
93 }
94 #endif
96 gchar*
97 get_optarg(char *argv[], gint argc, gint * argp, gint * pos)
98 {
99 if (argv[*argp][*pos])
100 return &(argv[*argp][*pos]);
101 else {
102 if (*argp + 1 < argc) {
103 if (argv[(*argp) + 1][0] != '-') {
104 (*argp)++;
105 *pos = 0;
106 return &(argv[*argp][*pos]);
107 }
108 }
109 }
110 return NULL;
111 }
113 gchar*
114 get_progname(gchar * arg0)
115 {
116 gchar *p = arg0 + strlen(arg0) - 1;
117 while (p > arg0) {
118 if (*p == '/')
119 return p + 1;
120 p--;
121 }
122 return p;
123 }
125 gboolean
126 write_pidfile(gchar * name)
127 {
128 FILE *fptr;
130 if ((fptr = fopen(name, "wt"))) {
131 fprintf(fptr, "%d\n", getpid());
132 fclose(fptr);
133 pidfile = strdup(name);
134 return TRUE;
135 }
136 logwrite(LOG_WARNING, "could not write pid file: %s\n", strerror(errno));
137 return FALSE;
138 }
140 static void
141 mode_daemon(gboolean do_listen, gint queue_interval, char *argv[])
142 {
143 guint pid;
145 /* daemon */
146 if (!conf.run_as_user) {
147 if ((conf.orig_uid != 0) && (conf.orig_uid != conf.mail_uid)) {
148 fprintf(stderr, "must be root or %s for daemon.\n", DEF_MAIL_USER);
149 exit(EXIT_FAILURE);
150 }
151 }
153 /* reparent to init only if init is not already the parent */
154 if (getppid() != 1) {
155 if ((pid = fork()) > 0) {
156 exit(EXIT_SUCCESS);
157 } else if (pid < 0) {
158 logwrite(LOG_ALERT, "could not fork!");
159 exit(EXIT_FAILURE);
160 }
161 }
163 signal(SIGTERM, sigterm_handler);
164 write_pidfile(PIDFILEDIR "/masqmail.pid");
166 conf.do_verbose = FALSE;
168 /* closing and reopening the log ensures that it is open afterwards
169 because it is possible that the log is assigned to fd 1 and gets
170 thus closes by fclose(stdout). Similar for the debugfile.
171 */
172 logclose();
173 fclose(stdin);
174 fclose(stdout);
175 fclose(stderr);
176 logopen();
178 listen_port(do_listen ? conf.listen_addresses : NULL, queue_interval, argv);
179 }
181 #ifdef ENABLE_POP3
182 static void
183 mode_get_daemon(gint get_interval, char *argv[])
184 {
185 guint pid;
187 /* daemon */
188 if (!conf.run_as_user) {
189 if ((conf.orig_uid != 0) && (conf.orig_uid != conf.mail_uid)) {
190 fprintf(stderr, "must be root or %s for daemon.\n", DEF_MAIL_USER);
191 exit(EXIT_FAILURE);
192 }
193 }
195 /* reparent to init only if init is not already the parent */
196 if (getppid() != 1) {
197 if ((pid = fork()) > 0) {
198 exit(EXIT_SUCCESS);
199 } else if (pid < 0) {
200 logwrite(LOG_ALERT, "could not fork!");
201 exit(EXIT_FAILURE);
202 }
203 }
205 signal(SIGTERM, sigterm_handler);
206 write_pidfile(PIDFILEDIR "/masqmail-get.pid");
208 conf.do_verbose = FALSE;
210 /* closing and reopening the log ensures that it is open afterwards
211 because it is possible that the log is assigned to fd 1 and gets
212 thus closes by fclose(stdout). Similar for the debugfile.
213 */
214 logclose();
215 fclose(stdin);
216 fclose(stdout);
217 fclose(stderr);
218 logopen();
220 get_daemon(get_interval, argv);
221 }
222 #endif
224 #ifdef ENABLE_SMTP_SERVER
225 static void
226 mode_smtp()
227 {
228 /* accept smtp message on stdin */
229 /* write responses to stderr. */
231 struct sockaddr_in saddr;
232 gchar *peername = NULL;
233 int dummy = sizeof(saddr);
235 conf.do_verbose = FALSE;
237 if (!conf.run_as_user) {
238 seteuid(conf.orig_uid);
239 setegid(conf.orig_gid);
240 }
242 DEBUG(5) debugf("accepting smtp message on stdin\n");
244 if (getpeername(0, (struct sockaddr *) (&saddr), &dummy) == 0) {
245 peername = g_strdup(inet_ntoa(saddr.sin_addr));
246 } else if (errno != ENOTSOCK)
247 exit(EXIT_FAILURE);
249 smtp_in(stdin, stderr, peername, NULL);
250 }
251 #endif
253 static void
254 mode_accept(address * return_path, gchar * full_sender_name, guint accept_flags, char **addresses, int addr_cnt)
255 {
256 /* accept message on stdin */
257 accept_error err;
258 message *msg = create_message();
259 gint i;
261 if (return_path && !is_privileged_user(conf.orig_uid)) {
262 fprintf(stderr, "must be root, %s or in group %s for setting return path.\n", DEF_MAIL_USER, DEF_MAIL_GROUP);
263 exit(EXIT_FAILURE);
264 }
266 if (!conf.run_as_user) {
267 seteuid(conf.orig_uid);
268 setegid(conf.orig_gid);
269 }
271 DEBUG(5) debugf("accepting message on stdin\n");
273 msg->received_prot = PROT_LOCAL;
274 for (i = 0; i < addr_cnt; i++) {
275 if (addresses[i][0] != '|')
276 msg->rcpt_list = g_list_append(msg->rcpt_list, create_address_qualified(addresses[i], TRUE, conf.host_name));
277 else {
278 logwrite(LOG_ALERT, "no pipe allowed as recipient address: %s\n", addresses[i]);
279 exit(EXIT_FAILURE);
280 }
281 }
283 /* -f option */
284 msg->return_path = return_path;
286 /* -F option */
287 msg->full_sender_name = full_sender_name;
289 if ((err = accept_message(stdin, msg, accept_flags)) == AERR_OK) {
290 if (spool_write(msg, TRUE)) {
291 pid_t pid;
292 logwrite(LOG_NOTICE, "%s <= %s with %s\n", msg->uid, addr_string(msg->return_path), prot_names[PROT_LOCAL]);
294 if (!conf.do_queue) {
295 if ((pid = fork()) == 0) {
296 conf.do_verbose = FALSE;
297 fclose(stdin);
298 fclose(stdout);
299 fclose(stderr);
300 if (deliver(msg)) {
301 exit(EXIT_SUCCESS);
302 } else
303 exit(EXIT_FAILURE);
304 } else if (pid < 0) {
305 logwrite(LOG_ALERT, "could not fork for delivery, id = %s", msg->uid);
306 }
307 }
308 } else {
309 fprintf(stderr, "Could not write spool file\n");
310 exit(EXIT_FAILURE);
311 }
312 } else {
313 switch (err) {
314 case AERR_EOF:
315 fprintf(stderr, "unexpected EOF.\n");
316 exit(EXIT_FAILURE);
317 case AERR_NORCPT:
318 fprintf(stderr, "no recipients.\n");
319 exit(EXIT_FAILURE);
320 case AERR_SIZE:
321 fprintf(stderr, "max message size exceeded.\n");
322 exit(EXIT_FAILURE);
323 default:
324 /* should never happen: */
325 fprintf(stderr, "Unknown error (%d)\r\n", err);
326 exit(EXIT_FAILURE);
327 }
328 exit(EXIT_FAILURE);
329 }
330 }
332 int
333 main(int argc, char *argv[])
334 {
335 /* cmd line flags */
336 gchar *conf_file = CONF_FILE;
337 gint arg = 1;
338 gboolean do_get = FALSE;
339 gboolean do_get_online = FALSE;
341 gboolean do_listen = FALSE;
342 gboolean do_runq = FALSE;
343 gboolean do_runq_online = FALSE;
345 gboolean do_queue = FALSE;
347 gboolean do_verbose = FALSE;
348 gint debug_level = -1;
350 mta_mode mta_mode = MODE_ACCEPT;
352 gint queue_interval = 0;
353 gint get_interval = 0;
354 gboolean opt_t = FALSE;
355 gboolean opt_i = FALSE;
356 gboolean opt_odb = FALSE;
357 gboolean opt_oem = FALSE;
358 gboolean exit_failure = FALSE;
360 gchar *M_cmd = NULL;
362 gint exit_code = EXIT_SUCCESS;
363 gchar *route_name = NULL;
364 gchar *get_name = NULL;
365 gchar *progname;
366 gchar *f_address = NULL;
367 gchar *full_sender_name = NULL;
368 address *return_path = NULL; /* may be changed by -f option */
370 progname = get_progname(argv[0]);
372 if (strcmp(progname, "mailq") == 0) {
373 mta_mode = MODE_LIST;
374 } else if (strcmp(progname, "mailrm") == 0) {
375 mta_mode = MODE_MCMD;
376 M_cmd = "rm";
377 } else if (strcmp(progname, "runq") == 0) {
378 mta_mode = MODE_RUNQUEUE;
379 do_runq = TRUE;
380 } else if (strcmp(progname, "rmail") == 0) {
381 /* the `rmail' alias should probably be removed now
382 that we have the rmail script. But let's keep it
383 for some while for compatibility. 2010-06-19 */
384 mta_mode = MODE_ACCEPT;
385 opt_i = TRUE;
386 } else if (strcmp(progname, "smtpd") == 0 || strcmp(progname, "in.smtpd") == 0) {
387 mta_mode = MODE_SMTP;
388 }
390 /* parse cmd line */
391 while (arg < argc) {
392 gint pos = 0;
393 if ((argv[arg][pos] == '-') && (argv[arg][pos + 1] != '-')) {
394 pos++;
395 switch (argv[arg][pos++]) {
396 case 'b':
397 switch (argv[arg][pos++]) {
398 case 'd':
399 do_listen = TRUE;
400 mta_mode = MODE_DAEMON;
401 break;
402 case 'i':
403 /* ignored */
404 mta_mode = MODE_BI;
405 break;
406 case 's':
407 mta_mode = MODE_SMTP;
408 break;
409 case 'p':
410 mta_mode = MODE_LIST;
411 break;
412 case 'V':
413 mta_mode = MODE_VERSION;
414 break;
415 default:
416 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
417 exit(EXIT_FAILURE);
418 }
419 break;
420 case 'B':
421 /* we ignore this and throw the argument away */
422 get_optarg(argv, argc, &arg, &pos);
423 break;
424 case 'C':
425 if (!(conf_file = get_optarg(argv, argc, &arg, &pos))) {
426 fprintf(stderr, "-C requires a filename as argument.\n");
427 exit(EXIT_FAILURE);
428 }
429 break;
430 case 'F':
431 {
432 full_sender_name = get_optarg(argv, argc, &arg, &pos);
433 if (!full_sender_name) {
434 fprintf(stderr, "-F requires a name as an argument\n");
435 exit(EXIT_FAILURE);
436 }
437 }
438 break;
439 case 'd':
440 if (getuid() == 0) {
441 char *lvl = get_optarg(argv, argc, &arg, &pos);
442 if (lvl)
443 debug_level = atoi(lvl);
444 else {
445 fprintf(stderr, "-d requires a number as an argument.\n");
446 exit(EXIT_FAILURE);
447 }
448 } else {
449 fprintf(stderr, "only root may set the debug level.\n");
450 exit(EXIT_FAILURE);
451 }
452 break;
453 case 'f':
454 /* set return path */
455 {
456 gchar *address;
457 address = get_optarg(argv, argc, &arg, &pos);
458 if (address) {
459 f_address = g_strdup(address);
460 } else {
461 fprintf(stderr, "-f requires an address as an argument\n");
462 exit(EXIT_FAILURE);
463 }
464 }
465 break;
466 case 'g':
467 do_get = TRUE;
468 if (!mta_mode)
469 mta_mode = MODE_NONE; /* to prevent default MODE_ACCEPT */
470 if (argv[arg][pos] == 'o') {
471 pos++;
472 do_get_online = TRUE;
473 /* can be NULL, then we use online detection method */
474 route_name = get_optarg(argv, argc, &arg, &pos);
476 if (route_name != NULL) {
477 if (isdigit(route_name[0])) {
478 get_interval = time_interval(route_name, &pos);
479 route_name = get_optarg(argv, argc, &arg, &pos);
480 mta_mode = MODE_GET_DAEMON;
481 do_get = FALSE;
482 }
483 }
484 } else {
485 if ((optarg = get_optarg(argv, argc, &arg, &pos))) {
486 get_name = get_optarg(argv, argc, &arg, &pos);
487 }
488 }
489 break;
490 case 'i':
491 if (argv[arg][pos] == 0) {
492 opt_i = TRUE;
493 exit_failure = FALSE; /* may override -oem */
494 } else {
495 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
496 exit(EXIT_FAILURE);
497 }
498 break;
499 case 'M':
500 {
501 mta_mode = MODE_MCMD;
502 M_cmd = g_strdup(&(argv[arg][pos]));
503 }
504 break;
505 case 'o':
506 switch (argv[arg][pos++]) {
507 case 'e':
508 if (argv[arg][pos++] == 'm') /* -oem */
509 if (!opt_i)
510 exit_failure = TRUE;
511 opt_oem = TRUE;
512 break;
513 case 'd':
514 if (argv[arg][pos] == 'b') /* -odb */
515 opt_odb = TRUE;
516 else if (argv[arg][pos] == 'q') /* -odq */
517 do_queue = TRUE;
518 break;
519 case 'i':
520 opt_i = TRUE;
521 exit_failure = FALSE; /* may override -oem */
522 break;
523 }
524 break;
526 case 'q':
527 {
528 gchar *optarg;
530 do_runq = TRUE;
531 mta_mode = MODE_RUNQUEUE;
532 if (argv[arg][pos] == 'o') {
533 pos++;
534 do_runq = FALSE;
535 do_runq_online = TRUE;
536 /* can be NULL, then we use online detection method */
537 route_name = get_optarg(argv, argc, &arg, &pos);
538 } else
539 if ((optarg = get_optarg(argv, argc, &arg, &pos))) {
540 mta_mode = MODE_DAEMON;
541 queue_interval = time_interval(optarg, &pos);
542 }
543 }
544 break;
545 case 't':
546 if (argv[arg][pos] == 0) {
547 opt_t = TRUE;
548 } else {
549 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
550 exit(EXIT_FAILURE);
551 }
552 break;
553 case 'v':
554 do_verbose = TRUE;
555 break;
556 default:
557 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
558 exit(EXIT_FAILURE);
559 }
560 } else {
561 if (argv[arg][pos + 1] == '-') {
562 if (argv[arg][pos + 2] != '\0') {
563 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
564 exit(EXIT_FAILURE);
565 }
566 arg++;
567 }
568 break;
569 }
570 arg++;
571 }
573 if (mta_mode == MODE_VERSION) {
574 gchar *with_resolver = "";
575 gchar *with_smtp_server = "";
576 gchar *with_pop3 = "";
577 gchar *with_auth = "";
578 gchar *with_maildir = "";
579 gchar *with_ident = "";
580 gchar *with_mserver = "";
582 #ifdef ENABLE_RESOLVER
583 with_resolver = " +resolver";
584 #endif
585 #ifdef ENABLE_SMTP_SERVER
586 with_smtp_server = " +smtp-server";
587 #endif
588 #ifdef ENABLE_POP3
589 with_pop3 = " +pop3";
590 #endif
591 #ifdef ENABLE_AUTH
592 with_auth = " +auth";
593 #endif
594 #ifdef ENABLE_MAILDIR
595 with_maildir = " +maildir";
596 #endif
597 #ifdef ENABLE_IDENT
598 with_ident = " +ident";
599 #endif
600 #ifdef ENABLE_MSERVER
601 with_mserver = " +mserver";
602 #endif
604 printf("%s %s%s%s%s%s%s%s%s\n", PACKAGE, VERSION, with_resolver, with_smtp_server,
605 with_pop3, with_auth, with_maildir, with_ident, with_mserver);
607 exit(EXIT_SUCCESS);
608 }
610 /* initialize random generator */
611 srand(time(NULL));
612 /* ignore SIGPIPE signal */
613 signal(SIGPIPE, SIG_IGN);
615 /* close all possibly open file descriptors, except std{in,out,err} */
616 {
617 int i, max_fd = sysconf(_SC_OPEN_MAX);
619 if (max_fd <= 0)
620 max_fd = 64;
621 for (i = 3; i < max_fd; i++)
622 close(i);
623 }
625 init_conf();
627 /* if we are not privileged, and the config file was changed we
628 implicetely set the the run_as_user flag and give up all
629 privileges.
631 So it is possible for a user to run his own daemon without
632 breaking security.
633 */
634 if (strcmp(conf_file, CONF_FILE) != 0) {
635 if (conf.orig_uid != 0) {
636 conf.run_as_user = TRUE;
637 seteuid(conf.orig_uid);
638 setegid(conf.orig_gid);
639 setuid(conf.orig_uid);
640 setgid(conf.orig_gid);
641 }
642 }
644 read_conf(conf_file);
646 if (do_queue)
647 conf.do_queue = TRUE;
648 if (do_verbose)
649 conf.do_verbose = TRUE;
650 if (debug_level >= 0) /* if >= 0, it was given by argument */
651 conf.debug_level = debug_level;
653 /* It appears that changing to / ensures that we are never in
654 a directory which we cannot access. This situation could be
655 possible after changing identity.
656 Maybe we should only change to / if we not run as user, to
657 allow relative paths for log files in test setups for
658 instance.
659 */
660 chdir("/");
662 if (!conf.run_as_user) {
663 if (setgid(0) != 0) {
664 fprintf(stderr, "could not set gid to 0. Is the setuid bit set? : %s\n", strerror(errno));
665 exit(EXIT_FAILURE);
666 }
667 if (setuid(0) != 0) {
668 fprintf(stderr, "could not gain root privileges. Is the setuid bit set? : %s\n", strerror(errno));
669 exit(EXIT_FAILURE);
670 }
671 }
673 if (!logopen()) {
674 fprintf(stderr, "could not open log file\n");
675 exit(EXIT_FAILURE);
676 }
678 DEBUG(1) debugf("masqmail %s starting\n", VERSION);
680 DEBUG(5) {
681 gchar **str = argv;
682 debugf("args: \n");
683 while (*str) {
684 debugf("%s \n", *str);
685 str++;
686 }
687 }
688 DEBUG(5) debugf("queue_interval = %d\n", queue_interval);
690 if (f_address) {
691 return_path = create_address_qualified(f_address, TRUE, conf.host_name);
692 g_free(f_address);
693 if (!return_path) {
694 fprintf(stderr, "invalid RFC821 address: %s\n", f_address);
695 exit(EXIT_FAILURE);
696 }
697 }
699 if (do_get) {
700 #ifdef ENABLE_POP3
701 if ((mta_mode == MODE_NONE) || (mta_mode == MODE_RUNQUEUE)) {
702 set_identity(conf.orig_uid, "getting mail");
703 if (do_get_online) {
704 if (route_name != NULL) {
705 conf.online_detect = g_strdup("argument");
706 set_online_name(route_name);
707 }
708 get_online();
709 } else {
710 if (get_name)
711 get_from_name(get_name);
712 else
713 get_all();
714 }
715 } else {
716 logwrite(LOG_ALERT, "get (-g) only allowed alone or together with queue run (-q)\n");
717 }
718 #else
719 fprintf(stderr, "get (pop) support not compiled in\n");
720 #endif
721 }
723 switch (mta_mode) {
724 case MODE_DAEMON:
725 mode_daemon(do_listen, queue_interval, argv);
726 break;
727 case MODE_RUNQUEUE:
728 {
729 /* queue runs */
730 set_identity(conf.orig_uid, "queue run");
732 if (do_runq)
733 exit_code = queue_run() ? EXIT_SUCCESS : EXIT_FAILURE;
735 if (do_runq_online) {
736 if (route_name != NULL) {
737 conf.online_detect = g_strdup("argument");
738 set_online_name(route_name);
739 }
740 exit_code =
741 queue_run_online() ? EXIT_SUCCESS : EXIT_FAILURE;
742 }
743 }
744 break;
745 case MODE_GET_DAEMON:
746 #ifdef ENABLE_POP3
747 if (route_name != NULL) {
748 conf.online_detect = g_strdup("argument");
749 set_online_name(route_name);
750 }
751 mode_get_daemon(get_interval, argv);
752 #endif
753 break;
755 case MODE_SMTP:
756 #ifdef ENABLE_SMTP_SERVER
757 mode_smtp();
758 #else
759 fprintf(stderr, "smtp server support not compiled in\n");
760 #endif
761 break;
763 case MODE_LIST:
764 queue_list();
765 break;
767 case MODE_BI:
768 exit(EXIT_SUCCESS);
769 break; /* well... */
771 case MODE_MCMD:
772 if (strcmp(M_cmd, "rm") == 0) {
773 gboolean ok = FALSE;
775 set_euidgid(conf.mail_uid, conf.mail_gid, NULL, NULL);
777 if (is_privileged_user(conf.orig_uid)) {
778 for (; arg < argc; arg++) {
779 if (queue_delete(argv[arg]))
780 ok = TRUE;
781 }
782 } else {
783 struct passwd *pw = getpwuid(conf.orig_uid);
784 if (pw) {
785 for (; arg < argc; arg++) {
786 message *msg = msg_spool_read(argv[arg], FALSE);
787 #ifdef ENABLE_IDENT
788 if (((msg->received_host == NULL) && (msg->received_prot == PROT_LOCAL))
789 || is_in_netlist(msg->received_host, conf.ident_trusted_nets)) {
790 #else
791 if ((msg->received_host == NULL) && (msg->received_prot == PROT_LOCAL)) {
792 #endif
793 if (msg->ident) {
794 if (strcmp(pw->pw_name, msg->ident) == 0) {
795 if (queue_delete(argv[arg]))
796 ok = TRUE;
797 } else {
798 fprintf(stderr, "you do not own message id %s\n", argv[arg]);
799 }
800 } else
801 fprintf(stderr, "message %s does not have an ident.\n", argv[arg]);
802 } else {
803 fprintf(stderr, "message %s was not received locally or from a trusted network.\n", argv[arg]);
804 }
805 }
806 } else {
807 fprintf(stderr, "could not find a passwd entry for uid %d: %s\n", conf.orig_uid, strerror(errno));
808 }
809 }
810 exit(ok ? EXIT_SUCCESS : EXIT_FAILURE);
811 } else {
812 fprintf(stderr, "unknown command %s\n", M_cmd);
813 exit(EXIT_FAILURE);
814 }
815 break;
817 case MODE_ACCEPT:
818 {
819 guint accept_flags = (opt_t ? ACC_DEL_RCPTS | ACC_RCPT_FROM_HEAD : 0)
820 | (opt_i ? ACC_DOT_IGNORE : ACC_NODOT_RELAX);
821 mode_accept(return_path, full_sender_name, accept_flags, &(argv[arg]), argc - arg);
822 exit(exit_failure ? EXIT_FAILURE : EXIT_SUCCESS);
823 }
824 break;
825 case MODE_NONE:
826 break;
827 default:
828 fprintf(stderr, "unknown mode: %d\n", mta_mode);
829 break;
830 }
832 logclose();
834 exit(exit_code);
835 }