+ fclose(cfp);
+ }
+ else {
+ brand_new_installation_set_defaults();
+ }
+
+ /* Ensure that we are linked to the correct version of libcitadel */
+ if (libcitadel_version_number() < LIBCITADEL_VERSION_NUMBER) {
+ fprintf(stderr, " You are running libcitadel version %d.%02d\n",
+ (libcitadel_version_number() / 100), (libcitadel_version_number() % 100));
+ fprintf(stderr, "citserver was compiled against version %d.%02d\n",
+ (LIBCITADEL_VERSION_NUMBER / 100), (LIBCITADEL_VERSION_NUMBER % 100));
+ exit(CTDLEXIT_LIBCITADEL);
+ }
+
+ /* Only allow LDAP auth mode if we actually have LDAP support */
+#ifndef HAVE_LDAP
+ if ((config.c_auth_mode == AUTHMODE_LDAP) || (config.c_auth_mode == AUTHMODE_LDAP_AD)) {
+ fprintf(stderr, "Your system is configured for LDAP authentication,\n"
+ "but you are running a server built without OpenLDAP support.\n");
+ exit(CTDL_EXIT_UNSUP_AUTH);
+ }
+#endif
+
+ /* Default maximum message length is 10 megabytes. This is site
+ * configurable. Also check to make sure the limit has not been
+ * set below 8192 bytes.
+ */
+ if (config.c_maxmsglen <= 0)
+ config.c_maxmsglen = 10485760;
+ if (config.c_maxmsglen < 8192)
+ config.c_maxmsglen = 8192;
+
+ /* Default lower and upper limits on number of worker threads */
+
+ if (config.c_min_workers < 3) /* no less than 3 */
+ config.c_min_workers = 5;
+
+ if (config.c_max_workers == 0) /* default maximum */
+ config.c_max_workers = 256;
+
+ if (config.c_max_workers < config.c_min_workers) /* max >= min */
+ config.c_max_workers = config.c_min_workers;
+
+ /* Networking more than once every five minutes just isn't sane */
+ if (config.c_net_freq == 0L)
+ config.c_net_freq = 3600L; /* once per hour default */
+ if (config.c_net_freq < 300L)
+ config.c_net_freq = 300L;
+
+ /* Same goes for POP3 */
+ if (config.c_pop3_fetch == 0L)
+ config.c_pop3_fetch = 3600L; /* once per hour default */
+ if (config.c_pop3_fetch < 300L)
+ config.c_pop3_fetch = 300L;
+ if (config.c_pop3_fastest == 0L)
+ config.c_pop3_fastest = 3600L; /* once per hour default */
+ if (config.c_pop3_fastest < 300L)
+ config.c_pop3_fastest = 300L;
+
+ /* "create new user" only works with native authentication mode */
+ if (config.c_auth_mode != AUTHMODE_NATIVE) {
+ config.c_disable_newu = 1;
+ }
+}
+
+
+/*
+ * Occasionally, we will need to write the config file, because some operations
+ * change site-wide parameters.
+ */
+void put_config(void)
+{
+ FILE *cfp;
+ int rv;
+
+ if ((cfp = fopen(file_citadel_config, "rb+")) == NULL)
+ perror(file_citadel_config);
+ else {
+ rv = fwrite((char *) &config, sizeof(struct config), 1, cfp);
+ if (rv == -1)
+ syslog(LOG_EMERG, "Failed to write: %s [%s]\n",
+ file_citadel_config, strerror(errno));
+ fclose(cfp);