|
0
|
1 /* MasqMail
|
|
|
2 Copyright (C) 1999-2001 Oliver Kurth
|
|
|
3
|
|
|
4 This program is free software; you can redistribute it and/or modify
|
|
|
5 it under the terms of the GNU General Public License as published by
|
|
|
6 the Free Software Foundation; either version 2 of the License, or
|
|
|
7 (at your option) any later version.
|
|
|
8
|
|
|
9 This program is distributed in the hope that it will be useful,
|
|
|
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
12 GNU General Public License for more details.
|
|
|
13
|
|
|
14 You should have received a copy of the GNU General Public License
|
|
|
15 along with this program; if not, write to the Free Software
|
|
|
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
17 */
|
|
|
18
|
|
|
19 #include <stdio.h>
|
|
|
20 #include <errno.h>
|
|
|
21 #include <stdlib.h>
|
|
|
22 #include <string.h>
|
|
|
23 #include <unistd.h>
|
|
|
24 #include <sys/types.h>
|
|
|
25 #include <sys/socket.h>
|
|
|
26 #include <sys/time.h>
|
|
|
27 #include <netinet/in.h>
|
|
|
28 #include <netdb.h>
|
|
|
29 #include <syslog.h>
|
|
|
30 #include <signal.h>
|
|
|
31
|
|
|
32 #include <glib.h>
|
|
|
33
|
|
|
34 #include "masqmail.h"
|
|
|
35
|
|
|
36 /* mutually exclusive modes. Note that there is neither a 'get' mode
|
|
|
37 nor a 'queue daemon' mode. These, as well as the distinction beween
|
|
|
38 the two (non exclusive) daemon (queue and listen) modes are handled
|
|
|
39 by flags.*/
|
|
|
40 typedef enum _mta_mode
|
|
|
41 {
|
|
|
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;
|
|
|
53
|
|
|
54 char *pidfile = NULL;
|
|
|
55 volatile int sigterm_in_progress = 0;
|
|
|
56
|
|
|
57 static
|
|
|
58 void sigterm_handler(int sig)
|
|
|
59 {
|
|
|
60 if(sigterm_in_progress)
|
|
|
61 raise(sig);
|
|
|
62 sigterm_in_progress = 1;
|
|
|
63
|
|
|
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",
|
|
|
69 pidfile, strerror(errno));
|
|
|
70 seteuid(uid); /* we exit anyway after this, just to be sure */
|
|
|
71 }
|
|
|
72
|
|
|
73 signal(sig, SIG_DFL);
|
|
|
74 raise(sig);
|
|
|
75 }
|
|
|
76
|
|
|
77 #ifdef ENABLE_IDENT /* so far used for that only */
|
|
|
78 static
|
|
|
79 gboolean is_in_netlist(gchar *host, GList *netlist)
|
|
|
80 {
|
|
|
81 guint hostip = inet_addr(host);
|
|
|
82 struct in_addr addr;
|
|
|
83
|
|
|
84 addr.s_addr = hostip;
|
|
|
85 if(addr.s_addr != INADDR_NONE){
|
|
|
86 GList *node;
|
|
|
87 foreach(netlist, node){
|
|
|
88 struct in_addr *net = (struct in_addr *)(node->data);
|
|
|
89 if((addr.s_addr & net->s_addr) == net->s_addr)
|
|
|
90 return TRUE;
|
|
|
91 }
|
|
|
92 }
|
|
|
93 return FALSE;
|
|
|
94 }
|
|
|
95 #endif
|
|
|
96
|
|
|
97 gchar *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 }
|
|
|
112
|
|
|
113 gchar *get_progname(gchar *arg0)
|
|
|
114 {
|
|
|
115 gchar *p = arg0 + strlen(arg0) - 1;
|
|
|
116 while(p > arg0){
|
|
|
117 if(*p == '/')
|
|
|
118 return p+1;
|
|
|
119 p--;
|
|
|
120 }
|
|
|
121 return p;
|
|
|
122 }
|
|
|
123
|
|
|
124 gboolean write_pidfile(gchar *name)
|
|
|
125 {
|
|
|
126 FILE *fptr;
|
|
|
127
|
|
|
128 if((fptr = fopen(name, "wt"))){
|
|
|
129 fprintf(fptr, "%d\n", getpid());
|
|
|
130 fclose(fptr);
|
|
|
131 pidfile = strdup(name);
|
|
|
132 return TRUE;
|
|
|
133 }
|
|
|
134 logwrite(LOG_WARNING, "could not write pid file: %s\n", strerror(errno));
|
|
|
135 return FALSE;
|
|
|
136 }
|
|
|
137
|
|
|
138 static
|
|
|
139 void mode_daemon(gboolean do_listen, gint queue_interval, char *argv[])
|
|
|
140 {
|
|
|
141 guint pid;
|
|
|
142
|
|
|
143 /* daemon */
|
|
|
144 if(!conf.run_as_user){
|
|
|
145 if((conf.orig_uid != 0) && (conf.orig_uid != conf.mail_uid)){
|
|
|
146 fprintf(stderr, "must be root or %s for daemon.\n", DEF_MAIL_USER);
|
|
|
147 exit(EXIT_FAILURE);
|
|
|
148 }
|
|
|
149 }
|
|
|
150
|
|
|
151 if((pid = fork()) > 0){
|
|
|
152 exit(EXIT_SUCCESS);
|
|
|
153 }else if(pid < 0){
|
|
|
154 logwrite(LOG_ALERT, "could not fork!");
|
|
|
155 exit(EXIT_FAILURE);
|
|
|
156 }
|
|
|
157
|
|
|
158 signal(SIGTERM, sigterm_handler);
|
|
|
159 write_pidfile(PIDFILEDIR"/masqmail.pid");
|
|
|
160
|
|
|
161 conf.do_verbose = FALSE;
|
|
|
162
|
|
|
163 fclose(stdin);
|
|
|
164 fclose(stdout);
|
|
|
165 fclose(stderr);
|
|
|
166
|
|
|
167 listen_port(do_listen ? conf.listen_addresses : NULL,
|
|
|
168 queue_interval, argv);
|
|
|
169 }
|
|
|
170
|
|
|
171 #ifdef ENABLE_POP3
|
|
|
172 static
|
|
|
173 void mode_get_daemon(gint get_interval, char *argv[])
|
|
|
174 {
|
|
|
175 guint pid;
|
|
|
176
|
|
|
177 /* daemon */
|
|
|
178 if(!conf.run_as_user){
|
|
|
179 if((conf.orig_uid != 0) && (conf.orig_uid != conf.mail_uid)){
|
|
|
180 fprintf(stderr, "must be root or %s for daemon.\n", DEF_MAIL_USER);
|
|
|
181 exit(EXIT_FAILURE);
|
|
|
182 }
|
|
|
183 }
|
|
|
184
|
|
|
185 if((pid = fork()) > 0){
|
|
|
186 exit(EXIT_SUCCESS);
|
|
|
187 }else if(pid < 0){
|
|
|
188 logwrite(LOG_ALERT, "could not fork!");
|
|
|
189 exit(EXIT_FAILURE);
|
|
|
190 }
|
|
|
191
|
|
|
192 signal(SIGTERM, sigterm_handler);
|
|
|
193 write_pidfile(PIDFILEDIR"/masqmail-get.pid");
|
|
|
194
|
|
|
195 conf.do_verbose = FALSE;
|
|
|
196
|
|
|
197 fclose(stdin);
|
|
|
198 fclose(stdout);
|
|
|
199 fclose(stderr);
|
|
|
200
|
|
|
201 get_daemon(get_interval, argv);
|
|
|
202 }
|
|
|
203 #endif
|
|
|
204
|
|
|
205 #ifdef ENABLE_SMTP_SERVER
|
|
|
206 static void mode_smtp()
|
|
|
207 {
|
|
|
208 /* accept smtp message on stdin */
|
|
|
209 /* write responses to stderr. */
|
|
|
210
|
|
|
211 struct sockaddr_in saddr;
|
|
|
212 gchar *peername = NULL;
|
|
|
213 int dummy = sizeof(saddr);
|
|
|
214 #ifdef ENABLE_IDENT
|
|
|
215 gchar *ident = NULL;
|
|
|
216 #endif
|
|
|
217
|
|
|
218 conf.do_verbose = FALSE;
|
|
|
219
|
|
|
220 if(!conf.run_as_user){
|
|
|
221 seteuid(conf.orig_uid);
|
|
|
222 setegid(conf.orig_gid);
|
|
|
223 }
|
|
|
224
|
|
|
225 DEBUG(5) debugf("accepting smtp message on stdin\n");
|
|
|
226
|
|
|
227 if(getpeername(0, (struct sockaddr *)(&saddr), &dummy) == 0){
|
|
|
228 peername = g_strdup(inet_ntoa(saddr.sin_addr));
|
|
|
229 #ifdef ENABLE_IDENT
|
|
|
230 {
|
|
|
231 gchar *id = NULL;
|
|
|
232 if((id = (gchar *)ident_id(0, 60))){
|
|
|
233 ident = g_strdup(id);
|
|
|
234 }
|
|
|
235 }
|
|
|
236 #endif
|
|
|
237 }else if(errno != ENOTSOCK)
|
|
|
238 exit(EXIT_FAILURE);
|
|
|
239
|
|
|
240 //smtp_in(stdin, stdout, peername);
|
|
|
241 smtp_in(stdin, stderr, peername, NULL);
|
|
|
242
|
|
|
243 #ifdef ENABLE_IDENT
|
|
|
244 if(ident) g_free(ident);
|
|
|
245 #endif
|
|
|
246 }
|
|
|
247 #endif
|
|
|
248
|
|
|
249 static void mode_accept(address *return_path, gchar *full_sender_name,
|
|
|
250 guint accept_flags, char **addresses, int addr_cnt)
|
|
|
251 {
|
|
|
252 /* accept message on stdin */
|
|
|
253 accept_error err;
|
|
|
254 message *msg = create_message();
|
|
|
255 gint i;
|
|
|
256
|
|
|
257 if(return_path != NULL){
|
|
|
258 if((conf.orig_uid != 0) &&
|
|
|
259 (conf.orig_uid != conf.mail_uid) &&
|
|
|
260 (!is_ingroup(conf.orig_uid, conf.mail_gid))){
|
|
|
261 fprintf(stderr,
|
|
|
262 "must be in root, %s or in group %s for setting return path.\n",
|
|
|
263 DEF_MAIL_USER, DEF_MAIL_GROUP);
|
|
|
264 exit(EXIT_FAILURE);
|
|
|
265 }
|
|
|
266 }
|
|
|
267
|
|
|
268 if(!conf.run_as_user){
|
|
|
269 seteuid(conf.orig_uid);
|
|
|
270 setegid(conf.orig_gid);
|
|
|
271 }
|
|
|
272
|
|
|
273 DEBUG(5) debugf("accepting message on stdin\n");
|
|
|
274
|
|
|
275 msg->received_prot = PROT_LOCAL;
|
|
|
276 for(i = 0; i < addr_cnt; i++){
|
|
|
277 if(addresses[i][0] != '|')
|
|
|
278 msg->rcpt_list =
|
|
|
279 g_list_append(msg->rcpt_list,
|
|
|
280 create_address_qualified(addresses[i], TRUE, conf.host_name));
|
|
|
281 else{
|
|
|
282 logwrite(LOG_ALERT, "no pipe allowed as recipient address: %s\n", addresses[i]);
|
|
|
283 exit(EXIT_FAILURE);
|
|
|
284 }
|
|
|
285 }
|
|
|
286
|
|
|
287 /* -f option */
|
|
|
288 msg->return_path = return_path;
|
|
|
289
|
|
|
290 /* -F option */
|
|
|
291 msg->full_sender_name = full_sender_name;
|
|
|
292
|
|
|
293 if((err = accept_message(stdin, msg, accept_flags)) == AERR_OK){
|
|
|
294 if(spool_write(msg, TRUE)){
|
|
|
295 pid_t pid;
|
|
|
296 logwrite(LOG_NOTICE, "%s <= %s with %s\n",
|
|
|
297 msg->uid, addr_string(msg->return_path),
|
|
|
298 prot_names[PROT_LOCAL]);
|
|
|
299
|
|
|
300 if(!conf.do_queue){
|
|
|
301
|
|
|
302 if((pid = fork()) == 0){
|
|
|
303
|
|
|
304 conf.do_verbose = FALSE;
|
|
|
305
|
|
|
306 fclose(stdin);
|
|
|
307 fclose(stdout);
|
|
|
308 fclose(stderr);
|
|
|
309
|
|
|
310 if(deliver(msg)){
|
|
|
311 exit(EXIT_SUCCESS);
|
|
|
312 }else
|
|
|
313 exit(EXIT_FAILURE);
|
|
|
314 }else if(pid < 0){
|
|
|
315 logwrite(LOG_ALERT, "could not fork for delivery, id = %s",
|
|
|
316 msg->uid);
|
|
|
317 }
|
|
|
318 }
|
|
|
319 }else{
|
|
|
320 fprintf(stderr, "Could not write spool file\n");
|
|
|
321 exit(EXIT_FAILURE);
|
|
|
322 }
|
|
|
323 }else{
|
|
|
324 switch(err){
|
|
|
325 case AERR_EOF:
|
|
|
326 fprintf(stderr, "unexpected EOF.\n");
|
|
|
327 exit(EXIT_FAILURE);
|
|
|
328 case AERR_NORCPT:
|
|
|
329 fprintf(stderr, "no recipients.\n");
|
|
|
330 exit(EXIT_FAILURE);
|
|
|
331 default:
|
|
|
332 /* should never happen: */
|
|
|
333 fprintf(stderr, "Unknown error (%d)\r\n", err);
|
|
|
334 exit(EXIT_FAILURE);
|
|
|
335 }
|
|
|
336 exit(EXIT_FAILURE);
|
|
|
337 }
|
|
|
338 }
|
|
|
339
|
|
|
340 int
|
|
|
341 main(int argc, char *argv[])
|
|
|
342 {
|
|
|
343 /* cmd line flags */
|
|
|
344 gchar *conf_file = CONF_FILE;
|
|
|
345 gint arg = 1;
|
|
|
346 gboolean do_get = FALSE;
|
|
|
347 gboolean do_get_online = FALSE;
|
|
|
348
|
|
|
349 gboolean do_listen = FALSE;
|
|
|
350 gboolean do_runq = FALSE;
|
|
|
351 gboolean do_runq_online = FALSE;
|
|
|
352
|
|
|
353 gboolean do_queue = FALSE;
|
|
|
354
|
|
|
355 gboolean do_verbose = FALSE;
|
|
|
356 gint debug_level = -1;
|
|
|
357
|
|
|
358 mta_mode mta_mode = MODE_ACCEPT;
|
|
|
359
|
|
|
360 gint queue_interval = 0;
|
|
|
361 gint get_interval = 0;
|
|
|
362 gboolean opt_t = FALSE;
|
|
|
363 gboolean opt_i = FALSE;
|
|
|
364 gboolean opt_odb = FALSE;
|
|
|
365 gboolean opt_oem = FALSE;
|
|
|
366 gboolean exit_failure = FALSE;
|
|
|
367
|
|
|
368 gchar *M_cmd = NULL;
|
|
|
369
|
|
|
370 gint exit_code = EXIT_SUCCESS;
|
|
|
371 gchar *route_name = NULL;
|
|
|
372 gchar *get_name = NULL;
|
|
|
373 gchar *progname;
|
|
|
374 gchar *f_address = NULL;
|
|
|
375 gchar *full_sender_name = NULL;
|
|
|
376 address *return_path = NULL; /* may be changed by -f option */
|
|
|
377
|
|
|
378 progname = get_progname(argv[0]);
|
|
|
379
|
|
|
380 if(strcmp(progname, "mailq") == 0)
|
|
|
381 { mta_mode = MODE_LIST; }
|
|
|
382 else if(strcmp(progname, "mailrm") == 0)
|
|
|
383 { mta_mode = MODE_MCMD; M_cmd = "rm"; }
|
|
|
384 else if(strcmp(progname, "runq") == 0)
|
|
|
385 { mta_mode = MODE_RUNQUEUE; do_runq = TRUE; }
|
|
|
386 else if(strcmp(progname, "rmail") == 0)
|
|
|
387 { mta_mode = MODE_ACCEPT; opt_i = TRUE; }
|
|
|
388 else if(strcmp(progname, "smtpd") == 0 || strcmp(progname, "in.smtpd") == 0)
|
|
|
389 { mta_mode = MODE_SMTP; }
|
|
|
390
|
|
|
391 /* parse cmd line */
|
|
|
392 while(arg < argc){
|
|
|
393 gint pos = 0;
|
|
|
394 if((argv[arg][pos] == '-') && (argv[arg][pos+1] != '-')){
|
|
|
395 pos++;
|
|
|
396 switch(argv[arg][pos++]){
|
|
|
397 case 'b':
|
|
|
398 switch(argv[arg][pos++]){
|
|
|
399 case 'd':
|
|
|
400 do_listen = TRUE;
|
|
|
401 mta_mode = MODE_DAEMON;
|
|
|
402 break;
|
|
|
403 case 'i':
|
|
|
404 /* ignored */
|
|
|
405 mta_mode = MODE_BI;
|
|
|
406 break;
|
|
|
407 case 's':
|
|
|
408 mta_mode = MODE_SMTP;
|
|
|
409 break;
|
|
|
410 case 'p':
|
|
|
411 mta_mode = MODE_LIST;
|
|
|
412 break;
|
|
|
413 case 'V':
|
|
|
414 mta_mode = MODE_VERSION;
|
|
|
415 break;
|
|
|
416 default:
|
|
|
417 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
|
|
|
418 exit(EXIT_FAILURE);
|
|
|
419 }
|
|
|
420 break;
|
|
|
421 case 'B':
|
|
|
422 /* we ignore this and throw the argument away */
|
|
|
423 get_optarg(argv, argc, &arg, &pos);
|
|
|
424 break;
|
|
|
425 case 'C':
|
|
|
426 if(!(conf_file = get_optarg(argv, argc, &arg, &pos))){
|
|
|
427 fprintf(stderr, "-C requires a filename as argument.\n");
|
|
|
428 exit(EXIT_FAILURE);
|
|
|
429 }
|
|
|
430 break;
|
|
|
431 case 'F':
|
|
|
432 {
|
|
|
433 full_sender_name = get_optarg(argv, argc, &arg, &pos);
|
|
|
434 if(!full_sender_name){
|
|
|
435 fprintf(stderr, "-F requires a name as an argument\n");
|
|
|
436 exit(EXIT_FAILURE);
|
|
|
437 }
|
|
|
438 }
|
|
|
439 break;
|
|
|
440 case 'd':
|
|
|
441 if(getuid() == 0){
|
|
|
442 char *lvl = get_optarg(argv, argc, &arg, &pos);
|
|
|
443 if(lvl)
|
|
|
444 debug_level = atoi(lvl);
|
|
|
445 else{
|
|
|
446 fprintf(stderr, "-d requires a number as an argument.\n");
|
|
|
447 exit(EXIT_FAILURE);
|
|
|
448 }
|
|
|
449 }else{
|
|
|
450 fprintf(stderr, "only root may set the debug level.\n");
|
|
|
451 exit(EXIT_FAILURE);
|
|
|
452 }
|
|
|
453 break;
|
|
|
454 case 'f':
|
|
|
455 /* set return path */
|
|
|
456 {
|
|
|
457 gchar *address;
|
|
|
458 address = get_optarg(argv, argc, &arg, &pos);
|
|
|
459 if(address){
|
|
|
460 f_address = g_strdup(address);
|
|
|
461 }else{
|
|
|
462 fprintf(stderr, "-f requires an address as an argument\n");
|
|
|
463 exit(EXIT_FAILURE);
|
|
|
464 }
|
|
|
465 }
|
|
|
466 break;
|
|
|
467 case 'g':
|
|
|
468 do_get = TRUE;
|
|
|
469 if(!mta_mode) 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);
|
|
|
475
|
|
|
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) exit_failure = TRUE;
|
|
|
510 opt_oem = TRUE;
|
|
|
511 break;
|
|
|
512 case 'd':
|
|
|
513 if(argv[arg][pos] == 'b') /* -odb */
|
|
|
514 opt_odb = TRUE;
|
|
|
515 else if(argv[arg][pos] == 'q') /* -odq */
|
|
|
516 do_queue = TRUE;
|
|
|
517 break;
|
|
|
518 case 'i':
|
|
|
519 opt_i = TRUE;
|
|
|
520 exit_failure = FALSE; /* may override -oem */
|
|
|
521 break;
|
|
|
522 }
|
|
|
523 break;
|
|
|
524
|
|
|
525 case 'q':
|
|
|
526 {
|
|
|
527 gchar *optarg;
|
|
|
528
|
|
|
529 do_runq = TRUE;
|
|
|
530 mta_mode = MODE_RUNQUEUE;
|
|
|
531 if(argv[arg][pos] == 'o'){
|
|
|
532 pos++;
|
|
|
533 do_runq = FALSE;
|
|
|
534 do_runq_online = TRUE;
|
|
|
535 /* can be NULL, then we use online detection method */
|
|
|
536 route_name = get_optarg(argv, argc, &arg, &pos);
|
|
|
537 }else if((optarg = get_optarg(argv, argc, &arg, &pos))){
|
|
|
538 mta_mode = MODE_DAEMON;
|
|
|
539 queue_interval = time_interval(optarg, &pos);
|
|
|
540 }
|
|
|
541 }
|
|
|
542 break;
|
|
|
543 case 't':
|
|
|
544 if(argv[arg][pos] == 0){
|
|
|
545 opt_t = TRUE;
|
|
|
546 }else{
|
|
|
547 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
|
|
|
548 exit(EXIT_FAILURE);
|
|
|
549 }
|
|
|
550 break;
|
|
|
551 case 'v':
|
|
|
552 do_verbose = TRUE;
|
|
|
553 break;
|
|
|
554 default:
|
|
|
555 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
|
|
|
556 exit(EXIT_FAILURE);
|
|
|
557 }
|
|
|
558 }else{
|
|
|
559 if(argv[arg][pos+1] == '-'){
|
|
|
560 if(argv[arg][pos+2] != '\0'){
|
|
|
561 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
|
|
|
562 exit(EXIT_FAILURE);
|
|
|
563 }
|
|
|
564 arg++;
|
|
|
565 }
|
|
|
566 break;
|
|
|
567 }
|
|
|
568 arg++;
|
|
|
569 }
|
|
|
570
|
|
|
571 if(mta_mode == MODE_VERSION){
|
|
|
572 gchar *with_resolver = "", *with_smtp_server = "", *with_pop3 = "", *with_auth = "",
|
|
|
573 *with_maildir = "", *with_ident = "", *with_mserver = "";
|
|
|
574
|
|
|
575 #ifdef ENABLE_RESOLVER
|
|
|
576 with_resolver = " +resolver";
|
|
|
577 #endif
|
|
|
578 #ifdef ENABLE_SMTP_SERVER
|
|
|
579 with_smtp_server = " +smtp-server";
|
|
|
580 #endif
|
|
|
581 #ifdef ENABLE_POP3
|
|
|
582 with_pop3 = " +pop3";
|
|
|
583 #endif
|
|
|
584 #ifdef ENABLE_AUTH
|
|
|
585 with_auth = " +auth";
|
|
|
586 #endif
|
|
|
587 #ifdef ENABLE_MAILDIR
|
|
|
588 with_maildir = " +maildir";
|
|
|
589 #endif
|
|
|
590 #ifdef ENABLE_IDENT
|
|
|
591 with_ident = " +ident";
|
|
|
592 #endif
|
|
|
593 #ifdef ENABLE_MSERVER
|
|
|
594 with_mserver = " +mserver";
|
|
|
595 #endif
|
|
|
596
|
|
|
597 printf("%s %s%s%s%s%s%s%s%s\n", PACKAGE, VERSION,
|
|
|
598 with_resolver, with_smtp_server, with_pop3, with_auth,
|
|
|
599 with_maildir, with_ident, with_mserver);
|
|
|
600
|
|
|
601 exit(EXIT_SUCCESS);
|
|
|
602 }
|
|
|
603
|
|
|
604 /* initialize random generator */
|
|
|
605 srand(time(NULL));
|
|
|
606 /* ignore SIGPIPE signal */
|
|
|
607 signal(SIGPIPE, SIG_IGN);
|
|
|
608
|
|
|
609 /* close all possibly open file descriptors */
|
|
|
610 {
|
|
|
611 int i, max_fd = sysconf(_SC_OPEN_MAX);
|
|
|
612
|
|
|
613 if(max_fd <= 0) max_fd = 64;
|
|
|
614 for(i = 3; i < max_fd; i++)
|
|
|
615 close(i);
|
|
|
616 }
|
|
|
617
|
|
|
618 init_conf();
|
|
|
619
|
|
|
620 /* if we are not privileged, and the config file was changed we
|
|
|
621 implicetely set the the run_as_user flag and give up all
|
|
|
622 privileges.
|
|
|
623
|
|
|
624 So it is possible for a user to run his own daemon without
|
|
|
625 breaking security.
|
|
|
626 */
|
|
|
627 if(strcmp(conf_file, CONF_FILE) != 0){
|
|
|
628 if(conf.orig_uid != 0){
|
|
|
629 conf.run_as_user = TRUE;
|
|
|
630 seteuid(conf.orig_uid);
|
|
|
631 setegid(conf.orig_gid);
|
|
|
632 setuid(conf.orig_uid);
|
|
|
633 setgid(conf.orig_gid);
|
|
|
634 }
|
|
|
635 }
|
|
|
636
|
|
|
637 read_conf(conf_file);
|
|
|
638
|
|
|
639 if(do_queue) conf.do_queue = TRUE;
|
|
|
640 if(do_verbose) conf.do_verbose = TRUE;
|
|
|
641 if(debug_level >= 0) /* if >= 0, it was given by argument */
|
|
|
642 conf.debug_level = debug_level;
|
|
|
643
|
|
|
644 chdir("/");
|
|
|
645
|
|
|
646 if(!conf.run_as_user){
|
|
|
647 if(setgid(0) != 0){
|
|
|
648 fprintf(stderr,
|
|
|
649 "could not set gid to 0. Is the setuid bit set? : %s\n",
|
|
|
650 strerror(errno));
|
|
|
651 exit(EXIT_FAILURE);
|
|
|
652 }
|
|
|
653 if(setuid(0) != 0){
|
|
|
654 fprintf(stderr,
|
|
|
655 "could not gain root privileges. Is the setuid bit set? : %s\n",
|
|
|
656 strerror(errno));
|
|
|
657 exit(EXIT_FAILURE);
|
|
|
658 }
|
|
|
659 }
|
|
|
660
|
|
|
661 if(!logopen()){
|
|
|
662 fprintf(stderr, "could not open log file\n");
|
|
|
663 exit(EXIT_FAILURE);
|
|
|
664 }
|
|
|
665
|
|
|
666 DEBUG(1) debugf("masqmail %s starting\n", VERSION);
|
|
|
667
|
|
|
668 DEBUG(5){
|
|
|
669 gchar **str = argv;
|
|
|
670 debugf("args: \n");
|
|
|
671 while(*str){
|
|
|
672 debugf("%s \n", *str);
|
|
|
673 str++;
|
|
|
674 }
|
|
|
675 }
|
|
|
676 DEBUG(5) debugf("queue_interval = %d\n", queue_interval);
|
|
|
677
|
|
|
678 if(f_address){
|
|
|
679 return_path = create_address_qualified(f_address, TRUE, conf.host_name);
|
|
|
680 g_free(f_address);
|
|
|
681 if(!return_path){
|
|
|
682 fprintf(stderr, "invalid RFC821 address: %s\n", f_address);
|
|
|
683 exit(EXIT_FAILURE);
|
|
|
684 }
|
|
|
685 }
|
|
|
686
|
|
|
687 if(do_get){
|
|
|
688 #ifdef ENABLE_POP3
|
|
|
689 if((mta_mode == MODE_NONE) || (mta_mode == MODE_RUNQUEUE)){
|
|
|
690
|
|
|
691 set_identity(conf.orig_uid, "getting mail");
|
|
|
692
|
|
|
693 if(do_get_online){
|
|
|
694 if(route_name != NULL){
|
|
|
695 conf.online_detect = g_strdup("argument");
|
|
|
696 set_online_name(route_name);
|
|
|
697 }
|
|
|
698 get_online();
|
|
|
699 }else{
|
|
|
700 if(get_name)
|
|
|
701 get_from_name(get_name);
|
|
|
702 else
|
|
|
703 get_all();
|
|
|
704 }
|
|
|
705 }else{
|
|
|
706 logwrite(LOG_ALERT, "get (-g) only allowed alone or together with queue run (-q)\n");
|
|
|
707 }
|
|
|
708 #else
|
|
|
709 fprintf(stderr, "get (pop) support not compiled in\n");
|
|
|
710 #endif
|
|
|
711 }
|
|
|
712
|
|
|
713 switch(mta_mode){
|
|
|
714 case MODE_DAEMON:
|
|
|
715 mode_daemon(do_listen, queue_interval, argv);
|
|
|
716 break;
|
|
|
717 case MODE_RUNQUEUE:
|
|
|
718 {
|
|
|
719 /* queue runs */
|
|
|
720 set_identity(conf.orig_uid, "queue run");
|
|
|
721
|
|
|
722 if(do_runq)
|
|
|
723 exit_code = queue_run() ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
|
724
|
|
|
725 if(do_runq_online){
|
|
|
726 if(route_name != NULL){
|
|
|
727 conf.online_detect = g_strdup("argument");
|
|
|
728 set_online_name(route_name);
|
|
|
729 }
|
|
|
730 exit_code = queue_run_online() ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
|
731 }
|
|
|
732 }
|
|
|
733 break;
|
|
|
734 case MODE_GET_DAEMON:
|
|
|
735 #ifdef ENABLE_POP3
|
|
|
736 if(route_name != NULL){
|
|
|
737 conf.online_detect = g_strdup("argument");
|
|
|
738 set_online_name(route_name);
|
|
|
739 }
|
|
|
740 mode_get_daemon(get_interval, argv);
|
|
|
741 #endif
|
|
|
742 break;
|
|
|
743
|
|
|
744 case MODE_SMTP:
|
|
|
745 #ifdef ENABLE_SMTP_SERVER
|
|
|
746 mode_smtp();
|
|
|
747 #else
|
|
|
748 fprintf(stderr, "smtp server support not compiled in\n");
|
|
|
749 #endif
|
|
|
750 break;
|
|
|
751 case MODE_LIST:
|
|
|
752
|
|
|
753 queue_list();
|
|
|
754 break;
|
|
|
755
|
|
|
756 case MODE_BI:
|
|
|
757
|
|
|
758 exit(EXIT_SUCCESS);
|
|
|
759 break; /* well... */
|
|
|
760
|
|
|
761 case MODE_MCMD:
|
|
|
762 if(strcmp(M_cmd, "rm") == 0){
|
|
|
763 gboolean ok = FALSE;
|
|
|
764
|
|
|
765 set_euidgid(conf.mail_uid, conf.mail_gid, NULL, NULL);
|
|
|
766
|
|
|
767 if(is_privileged_user(conf.orig_uid)){
|
|
|
768 for(; arg < argc; arg++){
|
|
|
769 if(queue_delete(argv[arg]))
|
|
|
770 ok = TRUE;
|
|
|
771 }
|
|
|
772 }else{
|
|
|
773 struct passwd *pw = getpwuid(conf.orig_uid);
|
|
|
774 if(pw){
|
|
|
775 for(; arg < argc; arg++){
|
|
|
776 message *msg = msg_spool_read(argv[arg], FALSE);
|
|
|
777 #ifdef ENABLE_IDENT
|
|
|
778 if(((msg->received_host == NULL) && (msg->received_prot == PROT_LOCAL)) ||
|
|
|
779 is_in_netlist(msg->received_host, conf.ident_trusted_nets)){
|
|
|
780 #else
|
|
|
781 if((msg->received_host == NULL) && (msg->received_prot == PROT_LOCAL)){
|
|
|
782 #endif
|
|
|
783 if(msg->ident){
|
|
|
784 if(strcmp(pw->pw_name, msg->ident) == 0){
|
|
|
785 if(queue_delete(argv[arg]))
|
|
|
786 ok = TRUE;
|
|
|
787 }else{
|
|
|
788 fprintf(stderr, "you do not own message id %s\n", argv[arg]);
|
|
|
789 }
|
|
|
790 }else
|
|
|
791 fprintf(stderr, "message %s does not have an ident.\n", argv[arg]);
|
|
|
792 }else{
|
|
|
793 fprintf(stderr, "message %s was not received locally or from a trusted network.\n", argv[arg]);
|
|
|
794 }
|
|
|
795 }
|
|
|
796 }else{
|
|
|
797 fprintf(stderr, "could not find a passwd entry for uid %d: %s\n", conf.orig_uid, strerror(errno));
|
|
|
798 }
|
|
|
799 }
|
|
|
800 exit(ok ? EXIT_SUCCESS : EXIT_FAILURE);
|
|
|
801 }else{
|
|
|
802 fprintf(stderr, "unknown command %s\n", M_cmd);
|
|
|
803 exit(EXIT_FAILURE);
|
|
|
804 }
|
|
|
805 break;
|
|
|
806
|
|
|
807 case MODE_ACCEPT:
|
|
|
808 {
|
|
|
809 guint accept_flags =
|
|
|
810 (opt_t ? ACC_DEL_RCPTS|ACC_DEL_BCC|ACC_RCPT_FROM_HEAD : ACC_HEAD_FROM_RCPT) |
|
|
|
811 (opt_i ? ACC_NODOT_TERM : ACC_NODOT_RELAX);
|
|
|
812
|
|
|
813 mode_accept(return_path, full_sender_name, accept_flags, &(argv[arg]), argc - arg);
|
|
|
814
|
|
|
815 exit(exit_failure ? EXIT_FAILURE : EXIT_SUCCESS);
|
|
|
816 }
|
|
|
817 break;
|
|
|
818 case MODE_NONE:
|
|
|
819 break;
|
|
|
820 default:
|
|
|
821 fprintf(stderr, "unknown mode: %d\n", mta_mode);
|
|
|
822 break;
|
|
|
823 }
|
|
|
824
|
|
|
825 logclose();
|
|
|
826
|
|
|
827 exit(exit_code);
|
|
|
828 }
|
