add graceful zrtp failure

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@14745 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_rtp.c

@@ -600,12 +600,16 @@ SWITCH_DECLARE(void) switch_rtp_init(switch_memory_pool_t *pool)
 		
 		zrtp_log_set_log_engine(zrtp_logger);
 		zrtp_log_set_level(4);
-		if (zrtp_status_ok != zrtp_init(&zrtp_config, &zrtp_global)) {
-			abort();
-		}
+		if (zrtp_status_ok == zrtp_init(&zrtp_config, &zrtp_global)) {
 		
 			memcpy(zid, zid_string, 12);
 			switch_scheduler_add_task(switch_epoch_time_now(NULL) + 900, zrtp_cache_save_callback, "zrtp_cache_save", "core", 0, NULL, SSHF_NONE | SSHF_NO_DEL);
+		} else {
+			switch_core_set_variable("zrtp_enabled", NULL);
+			zrtp_on = 0;
+			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "ZRTP init failed!\n");
+		}
+		
 	}
 #endif
 	srtp_init();