Unable to register a laptop after trying on the wrong network #6857 (Martin Langhoff)

1 files changed, 11 insertions, 0 deletions

diff --git a/src/jarabe/model/network.py b/src/jarabe/model/network.py
index 0ff0c62..8af2591 100644
--- a/src/jarabe/model/network.py
+++ b/src/jarabe/model/network.py
@@ -26,6 +26,7 @@ import dbus.service
 import gobject
 import ConfigParser
 import gconf
+import ctypes
 
 from sugar import dispatch
 from sugar import env
@@ -381,6 +382,16 @@ class NMSettingsConnection(dbus.service.Object):
             self.Updated(self._settings.get_dict())
             self.save()
 
+        try:
+            # try to flush resolver cache - SL#1940
+            # ctypes' syntactic sugar does not work
+            # so we must get the func ptr explicitly
+            libc = ctypes.CDLL('libc.so.6')
+            res_init = getattr(libc, '__res_init')
+            res_init(None)
+        except:
+            logging.exception('Error calling libc.__res_init')
+
     def set_disconnected(self):
         if self._settings.connection.autoconnect:
             self._settings.connection.autoconnect = False