Don't update the same IP more than 2 times in success.

[bpdyndnsd] / src / updater.cpp

diff --git a/src/updater.cpp b/src/updater.cpp
index 5d32d10..58648f6 100644 (file)
--- a/src/updater.cpp
+++ b/src/updater.cpp
@@ -246,8 +246,37 @@ void Updater::update_services(bool changed_to_online) const
         time_t current_time = time(NULL);
 
         // Try to get the lastupdated time of the actual service if there is one.
-        if ( !service->get_last_updates().empty() )
-            lastupdated = service->get_last_updates().front(); /*lint !e1793 */
+        // And check for burnt IP, too.
+        std::map<time_t,std::string> last_updates = service->get_last_updates(); /*lint !e1793 */
+        if ( last_updates.size() > 0 )
+        {
+            bool ip_burnt = true;
+            string ip_next_to_last_update;
+            int max_equal_updates_in_succession = service->get_max_equal_updates_in_succession();
+            int i = 0;
+            for ( std::map<time_t,std::string>::reverse_iterator r_iter; (r_iter != last_updates.rend()) && (i < max_equal_updates_in_succession); r_iter++ )
+            {
+                if ( i == 0 )
+                    lastupdated = r_iter->first;
+
+                if ( ip_host != r_iter->second )
+                {
+                    ip_burnt = false;
+                    break;
+                }
+
+                i++;
+            }
+
+            Log->print_last_updates(ip_host,max_equal_updates_in_succession,last_updates,service->get_hostname());
+
+            if ( ip_burnt )
+            {
+                // IP Address is burnt. Too many updates in succession with the same IP.
+                Log->print_ip_burnt(ip_host,service->get_hostname());
+                continue;
+            }
+        }
 
         Log->print_check_service_update(hostname, current_time, lastupdated);