+#endif
+
+ /* Setup sockets and open device. */
+
+ if(!setup_network())
+ goto end;
+
+ /* Initiate all outgoing connections. */
+
+ try_outgoing_connections();
+
+ /* Change process priority */
+
+ if(get_config_string(lookup_config(config_tree, "ProcessPriority"), &priority)) {
+ if(!strcasecmp(priority, "Normal")) {
+ if (setpriority(NORMAL_PRIORITY_CLASS) != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s",
+ "setpriority", strerror(errno));
+ goto end;
+ }
+ } else if(!strcasecmp(priority, "Low")) {
+ if (setpriority(BELOW_NORMAL_PRIORITY_CLASS) != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s",
+ "setpriority", strerror(errno));
+ goto end;
+ }
+ } else if(!strcasecmp(priority, "High")) {
+ if (setpriority(HIGH_PRIORITY_CLASS) != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s",
+ "setpriority", strerror(errno));
+ goto end;
+ }
+ } else {
+ logger(LOG_ERR, "Invalid priority `%s`!", priority);
+ goto end;
+ }
+ }
+
+ /* drop privileges */
+ if (!drop_privs())
+ goto end;
+
+ /* Start main loop. It only exits when tinc is killed. */
+
+ status = main_loop();
+
+ /* Shutdown properly. */
+
+ ifdebug(CONNECTIONS)
+ devops.dump_stats();
+
+ close_network_connections();
+
+end:
+ logger(LOG_NOTICE, "Terminating");
+
+#ifndef HAVE_MINGW
+ remove_pid(pidfilename);
+#endif
+
+ free(priority);
+
+ EVP_cleanup();
+ ENGINE_cleanup();
+ CRYPTO_cleanup_all_ex_data();
+#ifdef HAVE_ERR_REMOVE_STATE
+ // OpenSSL claims this function was deprecated in 1.0.0,
+ // but valgrind's leak detector shows you still need to call it to make sure OpenSSL cleans up properly.
+ ERR_remove_state(0);
+#endif
+ ERR_free_strings();
+
+ exit_configuration(&config_tree);
+ list_free(cmdline_conf);
+ free_names();
+
+ return status;