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 #ifdef HAVE_SYS_SELECT_H
62 #include <sys/select.h>
69 int running_as_daemon = 0;
72 * Here's where it all begins.
74 int main(int argc, char **argv)
77 int a, i; /* General-purpose variables */
78 struct passwd pw, *pwp = NULL;
80 int drop_root_perms = 1;
84 char relhome[PATH_MAX]="";
85 char ctdldir[PATH_MAX]=CTDLDIR;
87 struct stat filestats;
90 /* initialize the master context */
93 /* parse command-line arguments */
94 for (a=1; a<argc; ++a) {
96 if (!strncmp(argv[a], "-l", 2)) {
97 safestrncpy(facility, &argv[a][2], sizeof(facility));
98 syslog_facility = SyslogFacility(facility);
102 /* run in the background if -d was specified */
103 else if (!strcmp(argv[a], "-d")) {
104 running_as_daemon = 1;
107 /* -x specifies the desired logging level */
108 else if (!strncmp(argv[a], "-x", 2)) {
109 verbosity = atoi(&argv[a][2]);
112 else if (!strncmp(argv[a], "-h", 2)) {
113 relh=argv[a][2]!='/';
114 if (!relh) safestrncpy(ctdl_home_directory, &argv[a][2],
115 sizeof ctdl_home_directory);
117 safestrncpy(relhome, &argv[a][2],
123 else if (!strncmp(argv[a], "-t", 2)) {
124 freopen(&argv[a][2], "w", stderr);
127 else if (!strncmp(argv[a], "-f", 2)) {
131 /* -r tells the server not to drop root permissions. don't use
132 * this unless you know what you're doing. this should be
133 * removed in the next release if it proves unnecessary. */
134 else if (!strcmp(argv[a], "-r"))
137 /* any other parameter makes it crash and burn */
139 lprintf(CTDL_EMERG, "citserver: usage: "
144 " [-xLogLevel] [-hHomeDir]\n");
150 calc_dirs_n_files(relh, home, relhome, ctdldir);
152 /* daemonize, if we were asked to */
153 if (running_as_daemon) {
158 /* Initialize the syslogger. Yes, we are really using 0 as the
159 * facility, because we are going to bitwise-OR the facility to
160 * the severity of each message, allowing us to write to other
161 * facilities when we need to...
164 openlog("citadel", LOG_NDELAY, 0);
165 setlogmask(LOG_UPTO(verbosity));
168 /* Tell 'em who's in da house */
169 lprintf(CTDL_NOTICE, "\n");
170 lprintf(CTDL_NOTICE, "\n");
172 "*** Citadel server engine v%d.%02d ***\n",
173 (REV_LEVEL/100), (REV_LEVEL%100));
175 "Copyright (C) 1987-2007 by the Citadel development team.\n");
177 "This program is distributed under the terms of the GNU "
178 "General Public License.\n");
179 lprintf(CTDL_NOTICE, "\n");
180 lprintf(CTDL_DEBUG, "Called as: %s\n", argv[0]);
182 /* Load site-specific parameters, and set the ipgm secret */
183 lprintf(CTDL_INFO, "Loading citadel.config\n");
185 config.c_ipgm_secret = rand();
188 lprintf(CTDL_INFO, "Acquiring control record\n");
192 /* on some dists rundir gets purged on startup. so we need to recreate it. */
194 if (stat(ctdl_run_dir, &filestats)==-1){
195 #ifdef SOLARIS_GETPWUID
196 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
198 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
200 mkdir(ctdl_run_dir, 0755);
201 chown(ctdl_run_dir, config.c_ctdluid, (pwp==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 * If we need host auth, start our chkpwd daemon.
243 if (config.c_auth_mode == 1) {
244 start_chkpwd_daemon();
248 * Now that we've bound the sockets, change to the Citadel user id and its
249 * corresponding group ids
251 if (drop_root_perms) {
252 cdb_chmod_data(); /* make sure we own our data files */
254 #ifdef SOLARIS_GETPWUID
255 pwp = getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf));
257 getpwuid_r(config.c_ctdluid, &pw, pwbuf, sizeof(pwbuf), &pwp);
260 lprintf(CTDL_CRIT, "WARNING: getpwuid(%ld): %s\n"
261 "Group IDs will be incorrect.\n", (long)CTDLUID,
264 initgroups(pw.pw_name, pw.pw_gid);
265 if (setgid(pw.pw_gid))
266 lprintf(CTDL_CRIT, "setgid(%ld): %s\n", (long)pw.pw_gid,
269 lprintf(CTDL_INFO, "Changing uid to %ld\n", (long)CTDLUID);
270 if (setuid(CTDLUID) != 0) {
271 lprintf(CTDL_CRIT, "setuid() failed: %s\n", strerror(errno));
273 #if defined (HAVE_SYS_PRCTL_H) && defined (PR_SET_DUMPABLE)
274 prctl(PR_SET_DUMPABLE, 1);
278 /* We want to check for idle sessions once per minute */
279 CtdlRegisterSessionHook(terminate_idle_sessions, EVT_TIMER);
282 * Now create a bunch of worker threads.
284 lprintf(CTDL_DEBUG, "Starting %d worker threads\n",
285 config.c_min_workers-1);
286 begin_critical_section(S_WORKER_LIST);
287 for (i=0; i<(config.c_min_workers-1); ++i) {
290 end_critical_section(S_WORKER_LIST);
292 /* Create the indexer thread. */
293 create_maintenance_threads();
295 /* This thread is now useless. It can't be turned into a worker
296 * thread because its stack is too small, but it can't be killed
297 * either because the whole server process would exit. So we just
298 * join to the first worker thread and exit when it exits.
300 pthread_join(worker_list->tid, NULL);