2 * citserver's main() function lives here.
14 #include <sys/types.h>
17 #include <sys/socket.h>
20 #if TIME_WITH_SYS_TIME
21 # include <sys/time.h>
25 # include <sys/time.h>
32 #include <netinet/in.h>
44 #ifdef HAVE_SYS_PRCTL_H
45 #include <sys/prctl.h>
49 #include "serv_extensions.h"
50 #include "sysdep_decls.h"
51 #include "citserver.h"
56 #include "housekeeping.h"
58 #include "citadel_dirs.c"
60 #ifdef HAVE_SYS_SELECT_H
61 #include <sys/select.h>
68 int running_as_daemon = 0;
71 * Here's where it all begins.
73 int main(int argc, char **argv)
76 int a, i; /* General-purpose variables */
78 int drop_root_perms = 1;
82 char relhome[PATH_MAX]="";
83 char ctdldir[PATH_MAX]=CTDLDIR;
85 struct stat filestats;
88 /* initialize the master context */
91 /* parse command-line arguments */
92 for (a=1; a<argc; ++a) {
94 if (!strncmp(argv[a], "-l", 2)) {
95 safestrncpy(facility, &argv[a][2], sizeof(facility));
96 syslog_facility = SyslogFacility(facility);
100 /* run in the background if -d was specified */
101 else if (!strcmp(argv[a], "-d")) {
102 running_as_daemon = 1;
105 /* -x specifies the desired logging level */
106 else if (!strncmp(argv[a], "-x", 2)) {
107 verbosity = atoi(&argv[a][2]);
110 else if (!strncmp(argv[a], "-h", 2)) {
111 relh=argv[a][2]!='/';
112 if (!relh) safestrncpy(ctdl_home_directory, &argv[a][2],
113 sizeof ctdl_home_directory);
115 safestrncpy(relhome, &argv[a][2],
121 else if (!strncmp(argv[a], "-t", 2)) {
122 freopen(&argv[a][2], "w", stderr);
125 else if (!strncmp(argv[a], "-f", 2)) {
129 /* -r tells the server not to drop root permissions. don't use
130 * this unless you know what you're doing. this should be
131 * removed in the next release if it proves unnecessary. */
132 else if (!strcmp(argv[a], "-r"))
135 /* any other parameter makes it crash and burn */
137 lprintf(CTDL_EMERG, "citserver: usage: "
142 " [-xLogLevel] [-hHomeDir]\n");
148 calc_dirs_n_files(relh, home, relhome, ctdldir);
150 /* daemonize, if we were asked to */
151 if (running_as_daemon) {
156 /* Initialize the syslogger. Yes, we are really using 0 as the
157 * facility, because we are going to bitwise-OR the facility to
158 * the severity of each message, allowing us to write to other
159 * facilities when we need to...
162 if (running_as_daemon) {
163 openlog("citadel", LOG_NDELAY, 0);
166 openlog("citadel", LOG_PERROR|LOG_NDELAY, 0);
168 setlogmask(LOG_UPTO(verbosity));
171 /* Tell 'em who's in da house */
172 lprintf(CTDL_NOTICE, "\n");
173 lprintf(CTDL_NOTICE, "\n");
175 "*** Citadel server engine v%d.%02d ***\n",
176 (REV_LEVEL/100), (REV_LEVEL%100));
178 "Copyright (C) 1987-2006 by the Citadel development team.\n");
180 "This program is distributed under the terms of the GNU "
181 "General Public License.\n");
182 lprintf(CTDL_NOTICE, "\n");
183 lprintf(CTDL_DEBUG, "Called as: %s\n", argv[0]);
185 /* Load site-specific parameters, and set the ipgm secret */
186 lprintf(CTDL_INFO, "Loading citadel.config\n");
188 config.c_ipgm_secret = rand();
191 lprintf(CTDL_INFO, "Acquiring control record\n");
195 /* on some dists rundir gets purged on startup. so we need to recreate it. */
197 if (stat(ctdl_run_dir, &filestats)==-1){
198 pw=getpwuid(config.c_ctdluid);
199 mkdir(ctdl_run_dir, 0755);
200 chown(ctdl_run_dir, config.c_ctdluid, (pw==NULL)?-1:pw->pw_gid);
211 * Do non system dependent startup functions.
216 * Bind the server to a Unix-domain socket.
218 CtdlRegisterServiceHook(0,
220 citproto_begin_session,
225 * Bind the server to our favorite TCP port (usually 504).
227 CtdlRegisterServiceHook(config.c_port_number,
229 citproto_begin_session,
234 * Load any server-side extensions available here.
236 lprintf(CTDL_INFO, "Initializing server extensions\n");
237 size = strlen(ctdl_home_directory) + 9;
238 initialize_server_extensions();
241 * Now that we've bound the sockets, change to the Citadel user id and its
242 * corresponding group ids
244 if (drop_root_perms) {
245 if ((pw = getpwuid(CTDLUID)) == NULL)
246 lprintf(CTDL_CRIT, "WARNING: getpwuid(%ld): %s\n"
247 "Group IDs will be incorrect.\n", (long)CTDLUID,
250 initgroups(pw->pw_name, pw->pw_gid);
251 if (setgid(pw->pw_gid))
252 lprintf(CTDL_CRIT, "setgid(%ld): %s\n", (long)pw->pw_gid,
255 lprintf(CTDL_INFO, "Changing uid to %ld\n", (long)CTDLUID);
256 if (setuid(CTDLUID) != 0) {
257 lprintf(CTDL_CRIT, "setuid() failed: %s\n", strerror(errno));
259 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
260 prctl(PR_SET_DUMPABLE, 1);
264 /* We want to check for idle sessions once per minute */
265 CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER);
268 * Now create a bunch of worker threads.
270 lprintf(CTDL_DEBUG, "Starting %d worker threads\n",
271 config.c_min_workers-1);
272 begin_critical_section(S_WORKER_LIST);
273 for (i=0; i<(config.c_min_workers-1); ++i) {
276 end_critical_section(S_WORKER_LIST);
278 /* Create the indexer thread. */
279 create_maintenance_threads();
281 /* This thread is now useless. It can't be turned into a worker
282 * thread because its stack is too small, but it can't be killed
283 * either because the whole server process would exit. So we just
284 * join to the first worker thread and exit when it exits.
286 pthread_join(worker_list->tid, NULL);