5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 1997 - 2003 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
21 * Created: Wed Mar 19 00:17:12 1997
23 * This is the main program for the SILC daemon. This parses command
24 * line arguments and creates the server object.
28 #include "serverincludes.h"
29 #include "server_internal.h"
30 #include "silcversion.h"
32 /* For now, we'll have this one server context global for this module. */
33 static SilcServer silcd;
35 static void silc_usage(void);
37 /* Long command line options */
38 static struct option long_opts[] =
40 { "config-file", 1, NULL, 'f' },
41 { "passphrase", 1, NULL, 'p' },
42 { "debug", 2, NULL, 'd' },
43 { "debug-level", 1, NULL, 'D' },
44 { "hexdump", 0, NULL, 'x' },
45 { "help", 0, NULL, 'h' },
46 { "foreground", 0, NULL, 'F' },
47 { "version", 0, NULL,'V' },
49 /* Key management options */
50 { "create-key-pair", 1, NULL, 'C' },
51 { "pkcs", 1, NULL, 10 },
52 { "bits", 1, NULL, 11 },
53 { "identifier", 1, NULL, 12 },
58 /* Command line option variables */
59 static char *opt_keypath = NULL;
60 static char *opt_pkcs = "rsa";
61 static char *opt_identifier = NULL;
62 static int opt_bits = 2048;
64 /* Prints out the usage of silc client */
66 static void silc_usage(void)
69 "Usage: silcd [options]\n"
72 " -f --config-file=FILE Alternate configuration file\n"
73 " -d --debug=string Enable debugging (Implies --foreground)\n"
74 " -D --debug-level=level Enable debugging (Implies --foreground)\n"
75 " -x --hexdump Enable hexdumps (Implies --debug)\n"
76 " -h --help Display this message\n"
77 " -F --foreground Dont fork\n"
78 " -V --version Display version\n"
80 " Key Management Options:\n"
81 " -C, --create-key-pair=PATH Create new public key pair\n"
82 " --pkcs=PKCS Set the PKCS of the public key pair\n"
83 " --bits=VALUE Set length of the public key pair\n"
84 " --identifier=IDENTIFIER Public key identifier\n"
86 " The public key identifier may be of the following format:\n"
88 " UN=<username>, HN=<hostname or IP>, RN=<real name>, E=<email>,\n"
89 " O=<organization>, C=<country>\n"
91 " The UN and HN must be provided, the others are optional. If the\n"
92 " --identifier option is not used an identifier will be created for\n"
93 " the public key automatically.\n"
95 " Example identifier: \"UN=foobar, HN=foo.bar.com, RN=Foo T. Bar, \n"
96 " E=foo@bar.com, C=FI\"\n"
101 /* Die if a *valid* pid file exists already */
103 static void silc_server_checkpid(SilcServer silcd)
105 if (silcd->config->server_info->pid_file) {
110 SILC_LOG_DEBUG(("Checking for another silcd running"));
111 buf = silc_file_readfile(silcd->config->server_info->pid_file, &buf_len);
118 kill(oldpid, SIGCHLD); /* this signal does nothing, check if alive */
119 if (errno != ESRCH) {
120 fprintf(stderr, "\nI detected another daemon running with the "
122 fprintf(stderr, "Please change the config file, or erase the %s\n",
123 silcd->config->server_info->pid_file);
129 /* Drop root privileges. If some system call fails, die. */
131 static void silc_server_drop_privs(SilcServer server)
133 /* Are we executing silcd as root or a regular user? */
135 SILC_LOG_DEBUG(("Server started as user"));
142 SILC_LOG_DEBUG(("Server started as root. Dropping privileges."));
144 /* Get the values given for user and group in configuration file */
145 user = server->config->server_info->user;
146 group = server->config->server_info->group;
148 if (!user || !group) {
149 fprintf(stderr, "Error:"
150 "\tSILC server must not be run as root. For the security of your\n"
151 "\tsystem it is strongly suggested that you run SILC under dedicated\n"
152 "\tuser account. Modify the ServerInfo configuration section to run\n"
153 "\tthe server as non-root user.\n");
157 /* Check whether the user/group does not begin with a number */
158 if (isdigit(user[0]) || isdigit(group[0])) {
159 SILC_LOG_DEBUG(("User and/or group starts with a number"));
160 fprintf(stderr, "Invalid user and/or group information\n");
161 fprintf(stderr, "Please assign them as names, not numbers\n");
165 if (!(pw = getpwnam(user))) {
166 fprintf(stderr, "Error: No such user %s found.\n", user);
169 if (!(gr = getgrnam(group))) {
170 fprintf(stderr, "Error: No such group %s found.\n", group);
174 /* Check whether user and/or group is set to root. If yes, exit
175 immediately. Otherwise, setgid and setuid server to user.group */
176 if ((gr->gr_gid == 0) || (pw->pw_uid == 0)) {
177 fprintf(stderr, "Error:"
178 "\tSILC server must not be run as root. For the security of your\n"
179 "\tsystem it is strongly suggested that you run SILC under dedicated\n"
180 "\tuser account. Modify the ServerInfo configuration section to run\n"
181 "\tthe server as non-root user.\n");
185 SILC_LOG_DEBUG(("Changing to group %s (gid=%u)", group, gr->gr_gid));
186 if (setgid(gr->gr_gid) != 0) {
187 fprintf(stderr, "Error: Failed setgid() to %s (gid=%u). Exiting.\n",
191 #if defined HAVE_SETGROUPS && defined HAVE_INITGROUPS
192 SILC_LOG_DEBUG(("Removing supplementary groups"));
193 if (setgroups(0, NULL) != 0) {
194 fprintf(stderr, "Error: Failed setgroups() to NULL. Exiting.\n");
197 SILC_LOG_DEBUG(("Setting supplementary groups for user %s", user));
198 if (initgroups(user, gr->gr_gid) != 0) {
199 fprintf(stderr, "Error: Failed initgroups() for user %s (gid=%u). "
200 "Exiting.\n", user, gr->gr_gid);
204 SILC_LOG_DEBUG(("Changing to user %s (uid=%u)", user, pw->pw_uid));
205 if (setuid(pw->pw_uid) != 0) {
206 fprintf(stderr, "Error: Failed to setuid() to %s (gid=%u). Exiting.\n",
213 /* Fork server to background */
215 static void silc_server_daemonise(SilcServer server)
219 SILC_LOG_DEBUG(("Forking SILC server to background"));
221 if ((i = fork()) < 0) {
222 fprintf(stderr, "Error: fork() failed: %s\n", strerror(errno));
226 if (i) /* Kill the parent */
229 server->background = TRUE;
232 /* XXX close stdin, stdout, stderr -- before this, check that all writes
233 to stderr are changed to SILC_SERVER_LOG_ERROR() */
236 static void signal_handler(int sig)
238 /* Mark the signal to be caller after this signal is over. */
239 silc_schedule_signal_call(silcd->schedule, sig);
242 SILC_TASK_CALLBACK(got_hup)
244 /* First, reset all log files (they might have been deleted) */
245 silc_log_reset_all();
247 /* Rehash the configuration file */
248 silc_server_rehash(silcd);
251 SILC_TASK_CALLBACK(stop_server)
253 /* Stop scheduler, the program will stop eventually after noticing
254 that the scheduler is down. */
255 silc_schedule_stop(silcd->schedule);
258 /* Dump server statistics into a file into /tmp directory */
260 SILC_TASK_CALLBACK(dump_stats)
265 memset(filename, 0, sizeof(filename));
266 snprintf(filename, sizeof(filename) - 1, "/tmp/silcd.%d.stats", getpid());
267 fdd = fopen(filename, "w+");
271 #define STAT_OUTPUT(fmt, stat) fprintf(fdd, fmt "\n", (int)stat);
273 fprintf(fdd, "SILC Server %s Statistics\n\n", silcd->server_name);
274 fprintf(fdd, "Local Stats:\n");
275 STAT_OUTPUT(" My clients : %d", silcd->stat.my_clients);
276 STAT_OUTPUT(" My servers : %d", silcd->stat.my_servers);
277 STAT_OUTPUT(" My routers : %d", silcd->stat.my_routers);
278 STAT_OUTPUT(" My channels : %d", silcd->stat.my_channels);
279 STAT_OUTPUT(" My joined users : %d", silcd->stat.my_chanclients);
280 STAT_OUTPUT(" My aways : %d", silcd->stat.my_aways);
281 STAT_OUTPUT(" My detached clients : %d", silcd->stat.my_detached);
282 STAT_OUTPUT(" My server operators : %d", silcd->stat.my_server_ops);
283 STAT_OUTPUT(" My router operators : %d", silcd->stat.my_router_ops);
284 fprintf(fdd, "\nGlobal Stats:\n");
285 STAT_OUTPUT(" Cell clients : %d", silcd->stat.cell_clients);
286 STAT_OUTPUT(" Cell servers : %d", silcd->stat.cell_servers);
287 STAT_OUTPUT(" Cell channels : %d", silcd->stat.cell_channels);
288 STAT_OUTPUT(" Cell joined users : %d", silcd->stat.cell_chanclients);
289 STAT_OUTPUT(" All clients : %d", silcd->stat.clients);
290 STAT_OUTPUT(" All servers : %d", silcd->stat.servers);
291 STAT_OUTPUT(" All routers : %d", silcd->stat.routers);
292 STAT_OUTPUT(" All channels : %d", silcd->stat.channels);
293 STAT_OUTPUT(" All joined users : %d", silcd->stat.chanclients);
294 STAT_OUTPUT(" All aways : %d", silcd->stat.aways);
295 STAT_OUTPUT(" All detached clients : %d", silcd->stat.detached);
296 STAT_OUTPUT(" All server operators : %d", silcd->stat.server_ops);
297 STAT_OUTPUT(" All router operators : %d", silcd->stat.router_ops);
298 fprintf(fdd, "\nGeneral Stats:\n");
299 STAT_OUTPUT(" Connection attempts : %d", silcd->stat.conn_attempts);
300 STAT_OUTPUT(" Connection failures : %d", silcd->stat.conn_failures);
301 STAT_OUTPUT(" Authentication attempts : %d", silcd->stat.auth_attempts);
302 STAT_OUTPUT(" Authentication failures : %d", silcd->stat.auth_failures);
303 STAT_OUTPUT(" Packets sent : %d", silcd->stat.packets_sent);
304 STAT_OUTPUT(" Packets received : %d", silcd->stat.packets_received);
309 /* Dump internal flags */
310 fprintf(fdd, "\nDumping internal flags\n");
311 fprintf(fdd, " server_type : %d\n", silcd->server_type);
312 fprintf(fdd, " standalone : %d\n", silcd->standalone);
313 fprintf(fdd, " listenning : %d\n", silcd->listenning);
314 fprintf(fdd, " background : %d\n", silcd->background);
315 fprintf(fdd, " backup_router : %d\n", silcd->backup_router);
316 fprintf(fdd, " backup_primary : %d\n", silcd->backup_primary);
317 fprintf(fdd, " backup_noswitch : %d\n", silcd->backup_noswitch);
318 fprintf(fdd, " wait_backup : %d\n", silcd->wait_backup);
320 fprintf(fdd, " primary router : %s\n",
321 silcd->router->server_name ? silcd->router->server_name : "");
323 /* Dump socket connections */
326 SilcSocketConnection s;
328 fprintf(fdd, "\nDumping socket connections\n");
329 for (i = 0; i < silcd->config->param.connections_max; i++) {
330 s = silcd->sockets[i];
333 fprintf(fdd, " %d: host %s ip %s port %d type %d flags 0x%x\n",
334 s->sock, s->hostname ? s->hostname : "N/A",
335 s->ip ? s->ip : "N/A", s->port, s->type,
336 (unsigned int)s->flags);
342 SilcIDCacheList list = NULL;
343 SilcIDCacheEntry id_cache = NULL;
344 SilcServerEntry server_entry;
345 SilcClientEntry client_entry;
346 SilcChannelEntry channel_entry;
349 fprintf(fdd, "\nDumping databases\n");
351 if (silc_idcache_get_all(silcd->local_list->servers, &list)) {
352 if (silc_idcache_list_first(list, &id_cache)) {
353 fprintf(fdd, "\nServers in local-list:\n");
356 server_entry = (SilcServerEntry)id_cache->context;
357 fprintf(fdd, " %d: name %s id %s status 0x%x\n", c,
358 server_entry->server_name ? server_entry->server_name :
359 "N/A", server_entry->id ?
360 silc_id_render(server_entry->id, SILC_ID_SERVER) : "N/A",
361 server_entry->data.status);
362 if (!silc_idcache_list_next(list, &id_cache))
367 silc_idcache_list_free(list);
369 if (silc_idcache_get_all(silcd->global_list->servers, &list)) {
370 if (silc_idcache_list_first(list, &id_cache)) {
371 fprintf(fdd, "\nServers in global-list:\n");
374 server_entry = (SilcServerEntry)id_cache->context;
375 fprintf(fdd, " %d: name %s id %s status 0x%x\n", c,
376 server_entry->server_name ? server_entry->server_name :
377 "N/A", server_entry->id ?
378 silc_id_render(server_entry->id, SILC_ID_SERVER) : "N/A",
379 server_entry->data.status);
380 if (!silc_idcache_list_next(list, &id_cache))
385 silc_idcache_list_free(list);
387 if (silc_idcache_get_all(silcd->local_list->clients, &list)) {
388 if (silc_idcache_list_first(list, &id_cache)) {
389 fprintf(fdd, "\nClients in local-list:\n");
392 client_entry = (SilcClientEntry)id_cache->context;
393 fprintf(fdd, " %d: name %s id %s status 0x%x\n", c,
394 client_entry->nickname ? client_entry->nickname :
395 (unsigned char *)"N/A", client_entry->id ?
396 silc_id_render(client_entry->id, SILC_ID_CLIENT) : "N/A",
397 client_entry->data.status);
398 if (!silc_idcache_list_next(list, &id_cache))
403 silc_idcache_list_free(list);
405 if (silc_idcache_get_all(silcd->global_list->clients, &list)) {
406 if (silc_idcache_list_first(list, &id_cache)) {
407 fprintf(fdd, "\nClients in global-list:\n");
410 client_entry = (SilcClientEntry)id_cache->context;
411 fprintf(fdd, " %d: name %s id %s status 0x%x\n", c,
412 client_entry->nickname ? client_entry->nickname :
413 (unsigned char *)"N/A", client_entry->id ?
414 silc_id_render(client_entry->id, SILC_ID_CLIENT) : "N/A",
415 client_entry->data.status);
416 if (!silc_idcache_list_next(list, &id_cache))
421 silc_idcache_list_free(list);
423 if (silc_idcache_get_all(silcd->local_list->channels, &list)) {
424 if (silc_idcache_list_first(list, &id_cache)) {
425 fprintf(fdd, "\nChannels in local-list:\n");
428 channel_entry = (SilcChannelEntry)id_cache->context;
429 fprintf(fdd, " %d: name %s id %s\n", c,
430 channel_entry->channel_name ? channel_entry->channel_name :
431 "N/A", channel_entry->id ?
432 silc_id_render(channel_entry->id, SILC_ID_CHANNEL) : "N/A");
433 if (!silc_idcache_list_next(list, &id_cache))
438 silc_idcache_list_free(list);
440 if (silc_idcache_get_all(silcd->global_list->channels, &list)) {
441 if (silc_idcache_list_first(list, &id_cache)) {
442 fprintf(fdd, "\nChannels in global-list:\n");
445 channel_entry = (SilcChannelEntry)id_cache->context;
446 fprintf(fdd, " %d: name %s id %s\n", c,
447 channel_entry->channel_name ? channel_entry->channel_name :
448 "N/A", channel_entry->id ?
449 silc_id_render(channel_entry->id, SILC_ID_CHANNEL) : "N/A");
450 if (!silc_idcache_list_next(list, &id_cache))
455 silc_idcache_list_free(list);
471 static DebugLevel debug_levels[] = {
472 /* Very basic stuff from silcd/ */
473 { 3, "silcd\\.c,server\\.c" },
475 /* More stuff from silcd/ */
476 { 7, "silcd\\.c,server\\.c,command\\.c,server_backup\\.c,packet_send\\.c" },
478 /* All basic stuff from silcd/ */
479 { 10, "silc_server_*" },
481 /* All from silcd/ */
482 { 15, "*silcd*,*serverid*,silc_server_*,*idlist*" },
484 /* All from silcd/ and basic stuff from libs */
485 { 20, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,*silcske*" },
487 /* All from silcd/ and more stuff from libs */
488 { 25, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
489 "*silcpacket*,*ske*,*silcrng*" },
491 /* All from silcd/ and even more stuff from libs */
492 { 30, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
493 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*" },
495 /* All from silcd/ and even more stuff from libs + all from silccore */
496 { 35, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
497 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
498 "*silcid*,*argument*" },
500 /* All from silcd/, all from silccore, silccrypt and silcmath */
501 { 40, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
502 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
503 "*silcid*,*argument*,*pkcs*,*hmac*,*hash*,*cipher*,silc_math*" },
505 /* All from silcd/, all from silccore, silccrypt and silcmath + stuff
507 { 45, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
508 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
509 "*silcid*,*argument*,*pkcs*,*hmac*,*hash*,*cipher*,silc_math*,*sim*"
512 /* All from silcd/, all from silccore, silccrypt and silcmath + more stuff
514 { 50, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
515 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
516 "*silcid*,*argument*,*pkcs*,*hmac*,*hash*,*cipher*,silc_math*,*sim*"
517 "*sockconn*,*net*" },
519 /* All from silcd/, all from silccore, silccrypt and silcmath + more stuff
521 { 55, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
522 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
523 "*silcid*,*argument*,*pkcs*,*hmac*,*hash*,*cipher*,silc_math*,*sim*"
524 "*sockconn*,*net*,*log*,*config*" },
532 static void silc_get_debug_level(int level)
539 for (i = 0; debug_levels[i].string; i++)
540 if (level <= debug_levels[i].level) {
541 silc_log_set_debug_string(debug_levels[i].string);
545 #endif /* SILC_DEBUG */
547 /* This function should not be called directly but through the appropriate
548 wrapper macro defined in server.h */
550 void silc_server_stderr(SilcLogType type, char *message)
552 if (silcd->background) {
553 char *p, *n = message;
555 /* remove newlines if we are going to output it to a log file */
556 for (p = n; *p; p++) {
565 /* the message is freed inside the logging function */
566 silc_log_output(type, message);
569 fprintf(stderr, "%s\n", message);
574 int main(int argc, char **argv)
576 int ret, opt, option_index;
577 bool foreground = FALSE;
578 bool opt_create_keypair = FALSE;
579 char *silcd_config_file = NULL;
582 /* Parse command line arguments */
584 while ((opt = getopt_long(argc, argv, "f:p:d:D:xhFVC:",
585 long_opts, &option_index)) != EOF) {
591 printf("SILCd Secure Internet Live Conferencing daemon, "
592 "version %s (base: SILC Toolkit %s)\n",
593 silc_dist_version, silc_version);
594 printf("(c) 1997 - 2002 Pekka Riikonen "
595 "<priikone@silcnet.org>\n");
602 silc_log_set_debug_string(optarg);
603 foreground = TRUE; /* implied */
604 silc_log_quick = TRUE; /* implied */
607 "Run-time debugging is not enabled. To enable it recompile\n"
608 "the server with --enable-debug configuration option.\n");
615 silc_get_debug_level(atoi(optarg));
616 foreground = TRUE; /* implied */
617 silc_log_quick = TRUE; /* implied */
620 "Run-time debugging is not enabled. To enable it recompile\n"
621 "the server with --enable-debug configuration option.\n");
626 silc_debug_hexdump = TRUE;
627 silc_debug = TRUE; /* implied */
628 foreground = TRUE; /* implied */
629 silc_log_quick = TRUE; /* implied */
632 "Run-time debugging is not enabled. To enable it recompile\n"
633 "the server with --enable-debug configuration option.\n");
637 silcd_config_file = strdup(optarg);
644 * Key management options
647 opt_create_keypair = TRUE;
649 opt_keypath = strdup(optarg);
653 opt_pkcs = strdup(optarg);
657 opt_bits = atoi(optarg);
661 opt_identifier = strdup(optarg);
671 if (opt_create_keypair == TRUE) {
672 /* Create new key pair and exit */
673 char pubfile[256], prvfile[256];
675 memset(pubfile, 0, sizeof(pubfile));
676 memset(prvfile, 0, sizeof(prvfile));
677 snprintf(pubfile, sizeof(pubfile) - 1, "%s/silcd.pub", opt_keypath);
678 snprintf(prvfile, sizeof(prvfile) - 1, "%s/silcd.prv", opt_keypath);
680 silc_cipher_register_default();
681 silc_pkcs_register_default();
682 silc_hash_register_default();
683 silc_hmac_register_default();
684 silc_create_key_pair(opt_pkcs, opt_bits, pubfile, prvfile,
685 opt_identifier, "", NULL, NULL, NULL, FALSE);
689 /* Default configuration file */
690 if (!silcd_config_file)
691 silcd_config_file = strdup(SILC_SERVER_CONFIG_FILE);
693 /* Create SILC Server object */
694 ret = silc_server_alloc(&silcd);
698 /* Register default crypto stuff since we are going to need them
699 in the configuration file parsing phase */
700 silc_cipher_register_default();
701 silc_pkcs_register_default();
702 silc_hash_register_default();
703 silc_hmac_register_default();
705 /* Read configuration files */
706 silcd->config = silc_server_config_alloc(silcd_config_file);
707 if (silcd->config == NULL)
709 silcd->config_file = silcd_config_file;
711 /* Unregister the default crypto stuff so that configuration takes effect */
712 silc_cipher_unregister_all();
713 silc_pkcs_unregister_all();
714 silc_hash_unregister_all();
715 silc_hmac_unregister_all();
717 /* Check for another silcd running */
718 silc_server_checkpid(silcd);
720 /* Initialize the server */
721 if (silc_server_init(silcd) == FALSE)
724 /* Ignore some signals */
725 sa.sa_handler = SIG_IGN;
727 sigemptyset(&sa.sa_mask);
729 sigaction(SIGPIPE, &sa, NULL); /* Ignore broken pipes */
732 sigaction(SIGXFSZ, &sa, NULL); /* Ignore file limit exceeds */
735 sigaction(SIGXCPU, &sa, NULL); /* Ignore CPU time limit exceeds */
738 /* Handle specificly some other signals. */
739 sa.sa_handler = signal_handler;
740 sigaction(SIGHUP, &sa, NULL);
741 sigaction(SIGTERM, &sa, NULL);
742 sigaction(SIGINT, &sa, NULL);
743 sigaction(SIGUSR1, &sa, NULL);
744 silc_schedule_signal_register(silcd->schedule, SIGHUP, got_hup, NULL);
745 silc_schedule_signal_register(silcd->schedule, SIGTERM, stop_server, NULL);
746 silc_schedule_signal_register(silcd->schedule, SIGINT, stop_server, NULL);
747 silc_schedule_signal_register(silcd->schedule, SIGUSR1, dump_stats, NULL);
750 /* Before running the server, fork to background. */
751 silc_server_daemonise(silcd);
753 /* If set, write pid to file */
754 if (silcd->config->server_info->pid_file) {
755 char buf[10], *pidfile = silcd->config->server_info->pid_file;
757 snprintf(buf, sizeof(buf) - 1, "%d\n", getpid());
758 silc_file_writefile(pidfile, buf, strlen(buf));
762 /* Drop root if we are not in debug mode, so you don't need to bother about
763 file writing permissions and so on */
765 silc_server_drop_privs(silcd);
767 /* Run the server. When this returns the server has been stopped
769 silc_server_run(silcd);
771 /* Stop the server and free it. */
772 silc_server_stop(silcd);
773 silc_server_config_destroy(silcd->config);
774 silc_server_free(silcd);
776 /* Flush the logging system */
777 silc_log_flush_all();
779 silc_free(silcd_config_file);
780 silc_free(opt_identifier);
781 silc_free(opt_keypath);
785 silc_free(silcd_config_file);
786 silc_free(opt_identifier);
787 silc_free(opt_keypath);