FS-3353 --resolve

src/mod/endpoints/mod_rtmp/mod_rtmp.c

@@ -1177,12 +1177,14 @@ switch_status_t rtmp_session_check_user(rtmp_session_t *rsession, const char *us
 	switch_status_t status = SWITCH_STATUS_FALSE;
 	
 	switch_thread_rwlock_rdlock(rsession->account_rwlock);
+	if (user && domain) {
 		for (account = rsession->account; account; account = account->next) {
-		if (!strcmp(account->user, user) && !strcmp(account->domain, domain)) {
+			if (account->user && account->domain && !strcmp(account->user, user) && !strcmp(account->domain, domain)) {
 				status = SWITCH_STATUS_SUCCESS;
 				break;
 			}
 		}
+	}
 	switch_thread_rwlock_unlock(rsession->account_rwlock);
 	
 	return status;