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"
57 #include "housekeeping.h"
59 #include "citadel_dirs.c"
61 #include "modules_init.h"
64 #ifdef HAVE_SYS_SELECT_H
65 #include <sys/select.h>
72 int running_as_daemon = 0;
75 * Here's where it all begins.
77 int main(int argc, char **argv)
80 int a, i; /* General-purpose variables */
81 struct passwd pw, *pwp = NULL;
83 int drop_root_perms = 1;
87 char relhome[PATH_MAX]="";
88 char ctdldir[PATH_MAX]=CTDLDIR;
90 struct stat filestats;
93 /* initialize the master context */
96 /* parse command-line arguments */
97 for (a=1; a<argc; ++a) {
99 if (!strncmp(argv[a], "-l", 2)) {
100 safestrncpy(facility, &argv[a][2], sizeof(facility));
101 syslog_facility = SyslogFacility(facility);
105 /* run in the background if -d was specified */
106 else if (!strcmp(argv[a], "-d")) {
107 running_as_daemon = 1;
110 /* -x specifies the desired logging level */
111 else if (!strncmp(argv[a], "-x", 2)) {
112 verbosity = atoi(&argv[a][2]);
115 else if (!strncmp(argv[a], "-h", 2)) {
116 relh=argv[a][2]!='/';
117 if (!relh) safestrncpy(ctdl_home_directory, &argv[a][2],
118 sizeof ctdl_home_directory);
120 safestrncpy(relhome, &argv[a][2],
126 else if (!strncmp(argv[a], "-t", 2)) {
127 freopen(&argv[a][2], "w", stderr);
130 else if (!strncmp(argv[a], "-f", 2)) {
134 /* -r tells the server not to drop root permissions. don't use
135 * this unless you know what you're doing. this should be
136 * removed in the next release if it proves unnecessary. */
137 else if (!strcmp(argv[a], "-r"))
140 /* any other parameter makes it crash and burn */
142 lprintf(CTDL_EMERG, "citserver: usage: "
147 " [-xLogLevel] [-hHomeDir]\n");
153 calc_dirs_n_files(relh, home, relhome, ctdldir);
155 /* daemonize, if we were asked to */
156 if (running_as_daemon) {
161 /* Initialize the syslogger. Yes, we are really using 0 as the
162 * facility, because we are going to bitwise-OR the facility to
163 * the severity of each message, allowing us to write to other
164 * facilities when we need to...
167 openlog("citadel", 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) 1987-2007 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 #ifdef SOLARIS_GETPWUID
199 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
201 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
203 mkdir(ctdl_run_dir, 0755);
204 chown(ctdl_run_dir, config.c_ctdluid, (pwp==NULL)?-1:pw.pw_gid);
214 * Do non system dependent startup functions.
219 * Bind the server to a Unix-domain socket.
221 CtdlRegisterServiceHook(0,
223 citproto_begin_session,
228 * Bind the server to our favorite TCP port (usually 504).
230 CtdlRegisterServiceHook(config.c_port_number,
232 citproto_begin_session,
237 * Load any server-side extensions available here.
239 lprintf(CTDL_INFO, "Initializing server extensions\n");
240 size = strlen(ctdl_home_directory) + 9;
243 initialize_server_extensions();
246 initialise_modules();
251 * If we need host auth, start our chkpwd daemon.
253 if (config.c_auth_mode == 1) {
254 start_chkpwd_daemon();
258 * Now that we've bound the sockets, change to the Citadel user id and its
259 * corresponding group ids
261 if (drop_root_perms) {
262 cdb_chmod_data(); /* make sure we own our data files */
264 #ifdef SOLARIS_GETPWUID
265 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
267 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
270 lprintf(CTDL_CRIT, "WARNING: getpwuid(%ld): %s\n"
271 "Group IDs will be incorrect.\n", (long)CTDLUID,
274 initgroups(pw.pw_name, pw.pw_gid);
275 if (setgid(pw.pw_gid))
276 lprintf(CTDL_CRIT, "setgid(%ld): %s\n", (long)pw.pw_gid,
279 lprintf(CTDL_INFO, "Changing uid to %ld\n", (long)CTDLUID);
280 if (setuid(CTDLUID) != 0) {
281 lprintf(CTDL_CRIT, "setuid() failed: %s\n", strerror(errno));
283 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
284 prctl(PR_SET_DUMPABLE, 1);
288 /* We want to check for idle sessions once per minute */
289 CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER);
292 * Now create a bunch of worker threads.
294 lprintf(CTDL_DEBUG, "Starting %d worker threads\n",
295 config.c_min_workers-1);
296 begin_critical_section(S_WORKER_LIST);
297 for (i=0; i<(config.c_min_workers-1); ++i) {
300 end_critical_section(S_WORKER_LIST);
302 /* Create the indexer thread. */
303 create_maintenance_threads();
305 /* This thread is now useless. It can't be turned into a worker
306 * thread because its stack is too small, but it can't be killed
307 * either because the whole server process would exit. So we just
308 * join to the first worker thread and exit when it exits.
310 pthread_join(worker_list->tid, NULL);