1 /* $NetBSD: virtual.c,v 1.4 2022/10/08 16:12:51 christos Exp $ */
2
3 /*++
4 /* NAME
5 /* virtual 8
6 /* SUMMARY
7 /* Postfix virtual domain mail delivery agent
8 /* SYNOPSIS
9 /* \fBvirtual\fR [generic Postfix daemon options]
10 /* DESCRIPTION
11 /* The \fBvirtual\fR(8) delivery agent is designed for virtual mail
12 /* hosting services. Originally based on the Postfix \fBlocal\fR(8)
13 /* delivery
14 /* agent, this agent looks up recipients with map lookups of their
15 /* full recipient address, instead of using hard-coded unix password
16 /* file lookups of the address local part only.
17 /*
18 /* This delivery agent only delivers mail. Other features such as
19 /* mail forwarding, out-of-office notifications, etc., must be
20 /* configured via virtual_alias maps or via similar lookup mechanisms.
21 /* MAILBOX LOCATION
22 /* .ad
23 /* .fi
24 /* The mailbox location is controlled by the \fBvirtual_mailbox_base\fR
25 /* and \fBvirtual_mailbox_maps\fR configuration parameters (see below).
26 /* The \fBvirtual_mailbox_maps\fR table is indexed by the recipient
27 /* address as described under TABLE SEARCH ORDER below.
28 /*
29 /* The mailbox pathname is constructed as follows:
30 /*
31 /* .nf
32 /* \fB$virtual_mailbox_base/$virtual_mailbox_maps(\fIrecipient\fB)\fR
33 /* .fi
34 /*
35 /* where \fIrecipient\fR is the full recipient address.
36 /* UNIX MAILBOX FORMAT
37 /* .ad
38 /* .fi
39 /* When the mailbox location does not end in \fB/\fR, the message
40 /* is delivered in UNIX mailbox format. This format stores multiple
41 /* messages in one textfile.
42 /*
43 /* The \fBvirtual\fR(8) delivery agent prepends a "\fBFrom \fIsender
44 /* time_stamp\fR" envelope header to each message, prepends a
45 /* \fBDelivered-To:\fR message header with the envelope recipient
46 /* address,
47 /* prepends an \fBX-Original-To:\fR header with the recipient address as
48 /* given to Postfix,
49 /* prepends a \fBReturn-Path:\fR message header with the
50 /* envelope sender address, prepends a \fB>\fR character to lines
51 /* beginning with "\fBFrom \fR", and appends an empty line.
52 /*
53 /* The mailbox is locked for exclusive access while delivery is in
54 /* progress. In case of problems, an attempt is made to truncate the
55 /* mailbox to its original length.
56 /* QMAIL MAILDIR FORMAT
57 /* .ad
58 /* .fi
59 /* When the mailbox location ends in \fB/\fR, the message is delivered
60 /* in qmail \fBmaildir\fR format. This format stores one message per file.
61 /*
62 /* The \fBvirtual\fR(8) delivery agent prepends a \fBDelivered-To:\fR
63 /* message header with the final envelope recipient address,
64 /* prepends an \fBX-Original-To:\fR header with the recipient address as
65 /* given to Postfix, and prepends a
66 /* \fBReturn-Path:\fR message header with the envelope sender address.
67 /*
68 /* By definition, \fBmaildir\fR format does not require application-level
69 /* file locking during mail delivery or retrieval.
70 /* MAILBOX OWNERSHIP
71 /* .ad
72 /* .fi
73 /* Mailbox ownership is controlled by the \fBvirtual_uid_maps\fR
74 /* and \fBvirtual_gid_maps\fR lookup tables, which are indexed
75 /* with the full recipient address. Each table provides
76 /* a string with the numerical user and group ID, respectively.
77 /*
78 /* The \fBvirtual_minimum_uid\fR parameter imposes a lower bound on
79 /* numerical user ID values that may be specified in any
80 /* \fBvirtual_uid_maps\fR.
81 /* CASE FOLDING
82 /* .ad
83 /* .fi
84 /* All delivery decisions are made using the full recipient
85 /* address, folded to lower case. See also the next section
86 /* for a few exceptions with optional address extensions.
87 /* TABLE SEARCH ORDER
88 /* .ad
89 /* .fi
90 /* Normally, a lookup table is specified as a text file that
91 /* serves as input to the \fBpostmap\fR(1) command. The result, an
92 /* indexed file in \fBdbm\fR or \fBdb\fR format, is used for fast
93 /* searching by the mail system.
94 /*
95 /* The search order is as follows. The search stops
96 /* upon the first successful lookup.
97 /* .IP \(bu
98 /* When the recipient has an optional address extension the
99 /* \fIuser+extension@domain.tld\fR address is looked up first.
100 /* .sp
101 /* With Postfix versions before 2.1, the optional address extension
102 /* is always ignored.
103 /* .IP \(bu
104 /* The \fIuser@domain.tld\fR address, without address extension,
105 /* is looked up next.
106 /* .IP \(bu
107 /* Finally, the recipient \fI@domain\fR is looked up.
108 /* .PP
109 /* When the table is provided via other means such as NIS, LDAP
110 /* or SQL, the same lookups are done as for ordinary indexed files.
111 /*
112 /* Alternatively, a table can be provided as a regular-expression
113 /* map where patterns are given as regular expressions. In that case,
114 /* only the full recipient address is given to the regular-expression
115 /* map.
116 /* SECURITY
117 /* .ad
118 /* .fi
119 /* The \fBvirtual\fR(8) delivery agent is not security sensitive, provided
120 /* that the lookup tables with recipient user/group ID information are
121 /* adequately protected. This program is not designed to run chrooted.
122 /*
123 /* The \fBvirtual\fR(8) delivery agent disallows regular expression
124 /* substitution of $1 etc. in regular expression lookup tables,
125 /* because that would open a security hole.
126 /*
127 /* The \fBvirtual\fR(8) delivery agent will silently ignore requests
128 /* to use the \fBproxymap\fR(8) server. Instead it will open the
129 /* table directly. Before Postfix version 2.2, the virtual
130 /* delivery agent will terminate with a fatal error.
131 /* STANDARDS
132 /* RFC 822 (ARPA Internet Text Messages)
133 /* DIAGNOSTICS
134 /* Mail bounces when the recipient has no mailbox or when the
135 /* recipient is over disk quota. In all other problem cases, mail for
136 /* an existing recipient is deferred and a warning is logged.
137 /*
138 /* Problems and transactions are logged to \fBsyslogd\fR(8)
139 /* or \fBpostlogd\fR(8).
140 /* Corrupted message files are marked so that the queue
141 /* manager can move them to the \fBcorrupt\fR queue afterwards.
142 /*
143 /* Depending on the setting of the \fBnotify_classes\fR parameter,
144 /* the postmaster is notified of bounces and of other trouble.
145 /* BUGS
146 /* This delivery agent supports address extensions in email
147 /* addresses and in lookup table keys, but does not propagate
148 /* address extension information to the result of table lookup.
149 /*
150 /* Postfix should have lookup tables that can return multiple result
151 /* attributes. In order to avoid the inconvenience of maintaining
152 /* three tables, use an LDAP or MYSQL database.
153 /* CONFIGURATION PARAMETERS
154 /* .ad
155 /* .fi
156 /* Changes to \fBmain.cf\fR are picked up automatically, as
157 /* \fBvirtual\fR(8)
158 /* processes run for only a limited amount of time. Use the command
159 /* "\fBpostfix reload\fR" to speed up a change.
160 /*
161 /* The text below provides only a parameter summary. See
162 /* \fBpostconf\fR(5) for more details including examples.
163 /* MAILBOX DELIVERY CONTROLS
164 /* .ad
165 /* .fi
166 /* .IP "\fBvirtual_mailbox_base (empty)\fR"
167 /* A prefix that the \fBvirtual\fR(8) delivery agent prepends to all pathname
168 /* results from $virtual_mailbox_maps table lookups.
169 /* .IP "\fBvirtual_mailbox_maps (empty)\fR"
170 /* Optional lookup tables with all valid addresses in the domains that
171 /* match $virtual_mailbox_domains.
172 /* .IP "\fBvirtual_minimum_uid (100)\fR"
173 /* The minimum user ID value that the \fBvirtual\fR(8) delivery agent accepts
174 /* as a result from $virtual_uid_maps table lookup.
175 /* .IP "\fBvirtual_uid_maps (empty)\fR"
176 /* Lookup tables with the per-recipient user ID that the \fBvirtual\fR(8)
177 /* delivery agent uses while writing to the recipient's mailbox.
178 /* .IP "\fBvirtual_gid_maps (empty)\fR"
179 /* Lookup tables with the per-recipient group ID for \fBvirtual\fR(8) mailbox
180 /* delivery.
181 /* .PP
182 /* Available in Postfix version 2.0 and later:
183 /* .IP "\fBvirtual_mailbox_domains ($virtual_mailbox_maps)\fR"
184 /* Postfix is the final destination for the specified list of domains;
185 /* mail is delivered via the $virtual_transport mail delivery transport.
186 /* .IP "\fBvirtual_transport (virtual)\fR"
187 /* The default mail delivery transport and next-hop destination for
188 /* final delivery to domains listed with $virtual_mailbox_domains.
189 /* .PP
190 /* Available in Postfix version 2.5.3 and later:
191 /* .IP "\fBstrict_mailbox_ownership (yes)\fR"
192 /* Defer delivery when a mailbox file is not owned by its recipient.
193 /* LOCKING CONTROLS
194 /* .ad
195 /* .fi
196 /* .IP "\fBvirtual_mailbox_lock (see 'postconf -d' output)\fR"
197 /* How to lock a UNIX-style \fBvirtual\fR(8) mailbox before attempting
198 /* delivery.
199 /* .IP "\fBdeliver_lock_attempts (20)\fR"
200 /* The maximal number of attempts to acquire an exclusive lock on a
201 /* mailbox file or \fBbounce\fR(8) logfile.
202 /* .IP "\fBdeliver_lock_delay (1s)\fR"
203 /* The time between attempts to acquire an exclusive lock on a mailbox
204 /* file or \fBbounce\fR(8) logfile.
205 /* .IP "\fBstale_lock_time (500s)\fR"
206 /* The time after which a stale exclusive mailbox lockfile is removed.
207 /* RESOURCE AND RATE CONTROLS
208 /* .ad
209 /* .fi
210 /* .IP "\fBvirtual_mailbox_limit (51200000)\fR"
211 /* The maximal size in bytes of an individual \fBvirtual\fR(8) mailbox or
212 /* maildir file, or zero (no limit).
213 /* .PP
214 /* Implemented in the qmgr(8) daemon:
215 /* .IP "\fBvirtual_destination_concurrency_limit ($default_destination_concurrency_limit)\fR"
216 /* The maximal number of parallel deliveries to the same destination
217 /* via the virtual message delivery transport.
218 /* .IP "\fBvirtual_destination_recipient_limit ($default_destination_recipient_limit)\fR"
219 /* The maximal number of recipients per message for the virtual
220 /* message delivery transport.
221 /* MISCELLANEOUS CONTROLS
222 /* .ad
223 /* .fi
224 /* .IP "\fBconfig_directory (see 'postconf -d' output)\fR"
225 /* The default location of the Postfix main.cf and master.cf
226 /* configuration files.
227 /* .IP "\fBdaemon_timeout (18000s)\fR"
228 /* How much time a Postfix daemon process may take to handle a
229 /* request before it is terminated by a built-in watchdog timer.
230 /* .IP "\fBdelay_logging_resolution_limit (2)\fR"
231 /* The maximal number of digits after the decimal point when logging
232 /* sub-second delay values.
233 /* .IP "\fBipc_timeout (3600s)\fR"
234 /* The time limit for sending or receiving information over an internal
235 /* communication channel.
236 /* .IP "\fBmax_idle (100s)\fR"
237 /* The maximum amount of time that an idle Postfix daemon process waits
238 /* for an incoming connection before terminating voluntarily.
239 /* .IP "\fBmax_use (100)\fR"
240 /* The maximal number of incoming connections that a Postfix daemon
241 /* process will service before terminating voluntarily.
242 /* .IP "\fBprocess_id (read-only)\fR"
243 /* The process ID of a Postfix command or daemon process.
244 /* .IP "\fBprocess_name (read-only)\fR"
245 /* The process name of a Postfix command or daemon process.
246 /* .IP "\fBqueue_directory (see 'postconf -d' output)\fR"
247 /* The location of the Postfix top-level queue directory.
248 /* .IP "\fBsyslog_facility (mail)\fR"
249 /* The syslog facility of Postfix logging.
250 /* .IP "\fBsyslog_name (see 'postconf -d' output)\fR"
251 /* A prefix that is prepended to the process name in syslog
252 /* records, so that, for example, "smtpd" becomes "prefix/smtpd".
253 /* .PP
254 /* Available in Postfix version 3.0 and later:
255 /* .IP "\fBvirtual_delivery_status_filter ($default_delivery_status_filter)\fR"
256 /* Optional filter for the \fBvirtual\fR(8) delivery agent to change the
257 /* delivery status code or explanatory text of successful or unsuccessful
258 /* deliveries.
259 /* .PP
260 /* Available in Postfix version 3.3 and later:
261 /* .IP "\fBenable_original_recipient (yes)\fR"
262 /* Enable support for the original recipient address after an
263 /* address is rewritten to a different address (for example with
264 /* aliasing or with canonical mapping).
265 /* .IP "\fBservice_name (read-only)\fR"
266 /* The master.cf service name of a Postfix daemon process.
267 /* .PP
268 /* Available in Postfix 3.5 and later:
269 /* .IP "\fBinfo_log_address_format (external)\fR"
270 /* The email address form that will be used in non-debug logging
271 /* (info, warning, etc.).
272 /* SEE ALSO
273 /* qmgr(8), queue manager
274 /* bounce(8), delivery status reports
275 /* postconf(5), configuration parameters
276 /* postlogd(8), Postfix logging
277 /* syslogd(8), system logging
278 /* README_FILES
279 /* Use "\fBpostconf readme_directory\fR" or
280 /* "\fBpostconf html_directory\fR" to locate this information.
281 /* VIRTUAL_README, domain hosting howto
282 /* LICENSE
283 /* .ad
284 /* .fi
285 /* The Secure Mailer license must be distributed with this software.
286 /* HISTORY
287 /* .ad
288 /* .fi
289 /* This delivery agent was originally based on the Postfix local delivery
290 /* agent. Modifications mainly consisted of removing code that either
291 /* was not applicable or that was not safe in this context: aliases,
292 /* ~user/.forward files, delivery to "|command" or to /file/name.
293 /*
294 /* The \fBDelivered-To:\fR message header appears in the \fBqmail\fR
295 /* system by Daniel Bernstein.
296 /*
297 /* The \fBmaildir\fR structure appears in the \fBqmail\fR system
298 /* by Daniel Bernstein.
299 /* AUTHOR(S)
300 /* Wietse Venema
301 /* IBM T.J. Watson Research
302 /* P.O. Box 704
303 /* Yorktown Heights, NY 10598, USA
304 /*
305 /* Wietse Venema
306 /* Google, Inc.
307 /* 111 8th Avenue
308 /* New York, NY 10011, USA
309 /*
310 /* Andrew McNamara
311 /* andrewm@connect.com.au
312 /* connect.com.au Pty. Ltd.
313 /* Level 3, 213 Miller St
314 /* North Sydney 2060, NSW, Australia
315 /*--*/
316
317 /* System library. */
318
319 #include <sys_defs.h>
320 #include <stdlib.h>
321 #ifdef USE_PATHS_H
322 #include <paths.h> /* XXX mail_spool_dir dependency */
323 #endif
324
325 /* Utility library. */
326
327 #include <msg.h>
328 #include <vstring.h>
329 #include <vstream.h>
330 #include <iostuff.h>
331 #include <set_eugid.h>
332 #include <dict.h>
333
334 /* Global library. */
335
336 #include <mail_queue.h>
337 #include <recipient_list.h>
338 #include <deliver_request.h>
339 #include <deliver_completed.h>
340 #include <mail_params.h>
341 #include <mail_version.h>
342 #include <mail_conf.h>
343 #include <mail_params.h>
344 #include <mail_addr_find.h>
345 #include <flush_clnt.h>
346
347 /* Single server skeleton. */
348
349 #include <mail_server.h>
350
351 /* Application-specific. */
352
353 #include "virtual.h"
354
355 /*
356 * Tunable parameters.
357 */
358 char *var_virt_mailbox_maps;
359 char *var_virt_uid_maps;
360 char *var_virt_gid_maps;
361 int var_virt_minimum_uid;
362 char *var_virt_mailbox_base;
363 char *var_virt_mailbox_lock;
364 long var_virt_mailbox_limit;
365 char *var_mail_spool_dir; /* XXX dependency fix */
366 bool var_strict_mbox_owner;
367 char *var_virt_dsn_filter;
368
369 /*
370 * Mappings.
371 */
372 MAPS *virtual_mailbox_maps;
373 MAPS *virtual_uid_maps;
374 MAPS *virtual_gid_maps;
375
376 /*
377 * Bit masks.
378 */
379 int virtual_mbox_lock_mask;
380
381 /* local_deliver - deliver message with extreme prejudice */
382
local_deliver(DELIVER_REQUEST * rqst,char * service)383 static int local_deliver(DELIVER_REQUEST *rqst, char *service)
384 {
385 const char *myname = "local_deliver";
386 RECIPIENT *rcpt_end = rqst->rcpt_list.info + rqst->rcpt_list.len;
387 RECIPIENT *rcpt;
388 int rcpt_stat;
389 int msg_stat;
390 LOCAL_STATE state;
391 USER_ATTR usr_attr;
392
393 if (msg_verbose)
394 msg_info("local_deliver: %s from %s", rqst->queue_id, rqst->sender);
395
396 /*
397 * Initialize the delivery attributes that are not recipient specific.
398 */
399 state.level = 0;
400 deliver_attr_init(&state.msg_attr);
401 state.msg_attr.queue_name = rqst->queue_name;
402 state.msg_attr.queue_id = rqst->queue_id;
403 state.msg_attr.fp = rqst->fp;
404 state.msg_attr.offset = rqst->data_offset;
405 state.msg_attr.sender = rqst->sender;
406 state.msg_attr.dsn_envid = rqst->dsn_envid;
407 state.msg_attr.dsn_ret = rqst->dsn_ret;
408 state.msg_attr.relay = service;
409 state.msg_attr.msg_stats = rqst->msg_stats;
410 RESET_USER_ATTR(usr_attr, state.level);
411 state.request = rqst;
412
413 /*
414 * Iterate over each recipient named in the delivery request. When the
415 * mail delivery status for a given recipient is definite (i.e. bounced
416 * or delivered), update the message queue file and cross off the
417 * recipient. Update the per-message delivery status.
418 */
419 for (msg_stat = 0, rcpt = rqst->rcpt_list.info; rcpt < rcpt_end; rcpt++) {
420 state.msg_attr.rcpt = *rcpt;
421 rcpt_stat = deliver_recipient(state, usr_attr);
422 if (rcpt_stat == 0 && (rqst->flags & DEL_REQ_FLAG_SUCCESS))
423 deliver_completed(state.msg_attr.fp, rcpt->offset);
424 msg_stat |= rcpt_stat;
425 }
426
427 deliver_attr_free(&state.msg_attr);
428 return (msg_stat);
429 }
430
431 /* local_service - perform service for client */
432
local_service(VSTREAM * stream,char * service,char ** argv)433 static void local_service(VSTREAM *stream, char *service, char **argv)
434 {
435 DELIVER_REQUEST *request;
436 int status;
437
438 /*
439 * Sanity check. This service takes no command-line arguments.
440 */
441 if (argv[0])
442 msg_fatal("unexpected command-line argument: %s", argv[0]);
443
444 /*
445 * This routine runs whenever a client connects to the UNIX-domain socket
446 * that is dedicated to local mail delivery service. What we see below is
447 * a little protocol to (1) tell the client that we are ready, (2) read a
448 * delivery request from the client, and (3) report the completion status
449 * of that request.
450 */
451 if ((request = deliver_request_read(stream)) != 0) {
452 status = local_deliver(request, service);
453 deliver_request_done(stream, request, status);
454 }
455 }
456
457 /* pre_accept - see if tables have changed */
458
pre_accept(char * unused_name,char ** unused_argv)459 static void pre_accept(char *unused_name, char **unused_argv)
460 {
461 const char *table;
462
463 if ((table = dict_changed_name()) != 0) {
464 msg_info("table %s has changed -- restarting", table);
465 exit(0);
466 }
467 }
468
469 /* post_init - post-jail initialization */
470
post_init(char * unused_name,char ** unused_argv)471 static void post_init(char *unused_name, char **unused_argv)
472 {
473
474 /*
475 * Drop privileges most of the time.
476 */
477 set_eugid(var_owner_uid, var_owner_gid);
478
479 /*
480 * No case folding needed: the recipient address is case folded.
481 */
482 virtual_mailbox_maps =
483 maps_create(VAR_VIRT_MAILBOX_MAPS, var_virt_mailbox_maps,
484 DICT_FLAG_LOCK | DICT_FLAG_PARANOID
485 | DICT_FLAG_UTF8_REQUEST);
486
487 virtual_uid_maps =
488 maps_create(VAR_VIRT_UID_MAPS, var_virt_uid_maps,
489 DICT_FLAG_LOCK | DICT_FLAG_PARANOID
490 | DICT_FLAG_UTF8_REQUEST);
491
492 virtual_gid_maps =
493 maps_create(VAR_VIRT_GID_MAPS, var_virt_gid_maps,
494 DICT_FLAG_LOCK | DICT_FLAG_PARANOID
495 | DICT_FLAG_UTF8_REQUEST);
496
497 virtual_mbox_lock_mask = mbox_lock_mask(var_virt_mailbox_lock);
498 }
499
500 /* pre_init - pre-jail initialization */
501
pre_init(char * unused_name,char ** unused_argv)502 static void pre_init(char *unused_name, char **unused_argv)
503 {
504
505 /*
506 * Reset the file size limit from the message size limit to the mailbox
507 * size limit.
508 *
509 * We can't have mailbox size limit smaller than the message size limit,
510 * because that prohibits the delivery agent from updating the queue
511 * file.
512 */
513 if (ENFORCING_SIZE_LIMIT(var_virt_mailbox_limit)) {
514 if (!ENFORCING_SIZE_LIMIT(var_message_limit))
515 msg_fatal("configuration error: %s is limited but %s is "
516 "unlimited", VAR_VIRT_MAILBOX_LIMIT, VAR_MESSAGE_LIMIT);
517 if (var_virt_mailbox_limit < var_message_limit)
518 msg_fatal("configuration error: %s is smaller than %s",
519 VAR_VIRT_MAILBOX_LIMIT, VAR_MESSAGE_LIMIT);
520 set_file_limit(var_virt_mailbox_limit);
521 }
522
523 /*
524 * flush client.
525 */
526 flush_init();
527 }
528
529 MAIL_VERSION_STAMP_DECLARE;
530
531 /* main - pass control to the single-threaded skeleton */
532
main(int argc,char ** argv)533 int main(int argc, char **argv)
534 {
535 static const CONFIG_INT_TABLE int_table[] = {
536 VAR_VIRT_MINUID, DEF_VIRT_MINUID, &var_virt_minimum_uid, 1, 0,
537 0,
538 };
539 static const CONFIG_LONG_TABLE long_table[] = {
540 VAR_VIRT_MAILBOX_LIMIT, DEF_VIRT_MAILBOX_LIMIT, &var_virt_mailbox_limit, 0, 0,
541 0,
542 };
543 static const CONFIG_STR_TABLE str_table[] = {
544 VAR_MAIL_SPOOL_DIR, DEF_MAIL_SPOOL_DIR, &var_mail_spool_dir, 0, 0,
545 VAR_VIRT_MAILBOX_MAPS, DEF_VIRT_MAILBOX_MAPS, &var_virt_mailbox_maps, 0, 0,
546 VAR_VIRT_UID_MAPS, DEF_VIRT_UID_MAPS, &var_virt_uid_maps, 0, 0,
547 VAR_VIRT_GID_MAPS, DEF_VIRT_GID_MAPS, &var_virt_gid_maps, 0, 0,
548 VAR_VIRT_MAILBOX_BASE, DEF_VIRT_MAILBOX_BASE, &var_virt_mailbox_base, 1, 0,
549 VAR_VIRT_MAILBOX_LOCK, DEF_VIRT_MAILBOX_LOCK, &var_virt_mailbox_lock, 1, 0,
550 VAR_VIRT_DSN_FILTER, DEF_VIRT_DSN_FILTER, &var_virt_dsn_filter, 0, 0,
551 0,
552 };
553 static const CONFIG_BOOL_TABLE bool_table[] = {
554 VAR_STRICT_MBOX_OWNER, DEF_STRICT_MBOX_OWNER, &var_strict_mbox_owner,
555 0,
556 };
557
558 /*
559 * Fingerprint executables and core dumps.
560 */
561 MAIL_VERSION_STAMP_ALLOCATE;
562
563 single_server_main(argc, argv, local_service,
564 CA_MAIL_SERVER_INT_TABLE(int_table),
565 CA_MAIL_SERVER_LONG_TABLE(long_table),
566 CA_MAIL_SERVER_STR_TABLE(str_table),
567 CA_MAIL_SERVER_BOOL_TABLE(bool_table),
568 CA_MAIL_SERVER_PRE_INIT(pre_init),
569 CA_MAIL_SERVER_POST_INIT(post_init),
570 CA_MAIL_SERVER_PRE_ACCEPT(pre_accept),
571 CA_MAIL_SERVER_PRIVILEGED,
572 CA_MAIL_SERVER_BOUNCE_INIT(VAR_VIRT_DSN_FILTER,
573 &var_virt_dsn_filter),
574 0);
575 }
576