+int main_loop(void)
+{
+ struct timeval tv;
+ int r;
+ time_t last_ping_check;
+ struct event timeout;
+ struct event sighup_event;
+ struct event sigint_event;
+ struct event sigterm_event;
+ struct event sigquit_event;
+ struct event sigusr1_event;
+ struct event sigusr2_event;
+ struct event sigwinch_event;
+ struct event sigalrm_event;
+
+ cp();
+
+ signal_set(&sighup_event, SIGHUP, sighup_handler, NULL);
+ signal_add(&sighup_event, NULL);
+ signal_set(&sigint_event, SIGINT, sigint_handler, NULL);
+ signal_add(&sigint_event, NULL);
+ signal_set(&sigterm_event, SIGTERM, sigterm_handler, NULL);
+ signal_add(&sigterm_event, NULL);
+ signal_set(&sigquit_event, SIGQUIT, sigterm_handler, NULL);
+ signal_add(&sigquit_event, NULL);
+ signal_set(&sigusr1_event, SIGUSR1, sigusr1_handler, NULL);
+ signal_add(&sigusr1_event, NULL);
+ signal_set(&sigusr2_event, SIGUSR2, sigusr2_handler, NULL);
+ signal_add(&sigusr2_event, NULL);
+ signal_set(&sigwinch_event, SIGWINCH, sigwinch_handler, NULL);
+ signal_add(&sigwinch_event, NULL);
+ signal_set(&sigalrm_event, SIGALRM, sigalrm_handler, NULL);
+ signal_add(&sigalrm_event, NULL);
+
+ last_ping_check = now;
+
+ srand(now);
+
+ running = true;
+
+ while(running) {
+ now = time(NULL);
+
+ // tv.tv_sec = 1 + (rand() & 7); /* Approx. 5 seconds, randomized to prevent global synchronisation effects */
+ tv.tv_sec = 1;
+ tv.tv_usec = 0;
+
+ /* XXX: libevent transition: old timeout code in this loop */
+ timeout_set(&timeout, dummy, NULL);
+ timeout_add(&timeout, &tv);
+
+ r = build_fdset();
+ if(r < 0) {
+ logger(LOG_ERR, _("Error building fdset: %s"), strerror(errno));
+ cp_trace();
+ dump_connections();
+ return 1;
+ }
+
+ r = event_loop(EVLOOP_ONCE);
+ now = time(NULL);
+ if(r < 0) {
+ logger(LOG_ERR, _("Error while waiting for input: %s"),
+ strerror(errno));
+ cp_trace();
+ dump_connections();
+ return 1;
+ }
+
+ /* XXX: more libevent transition */
+ timeout_del(&timeout);
+
+ /* Let's check if everybody is still alive */
+
+ if(last_ping_check + pingtimeout < now) {
+ check_dead_connections();
+ last_ping_check = now;
+
+ /* Should we regenerate our key? */
+
+ if(keyexpires < now) {
+ ifdebug(STATUS) logger(LOG_INFO, _("Regenerating symmetric key"));
+
+ RAND_pseudo_bytes((unsigned char *)myself->key, myself->keylength);
+ if(myself->cipher)
+ EVP_DecryptInit_ex(&packet_ctx, myself->cipher, NULL, (unsigned char *)myself->key, (unsigned char *)myself->key + myself->cipher->key_len);
+ send_key_changed(broadcast, myself);
+ keyexpires = now + keylifetime;
+ }
+ }