Add local_address property

steam/client/__init__.py

@@ -491,7 +491,7 @@ class SteamClient(CMClient, BuiltinBase):
 
         if login_id is None:
             obfuscationMask = 0xBAADF00D
-            local_address_int = ip_to_int(self.connection.socket.getsockname()[0])
+            local_address_int = ip_to_int(self.connection.local_address)
             message.body.obfustucated_private_ip = local_address_int ^ obfuscationMask
         else:
             message.body.obfustucated_private_ip = login_id

steam/core/connection.py

@@ -28,6 +28,10 @@ class Connection(object):
 
         self.event_connected = event.Event()
 
+    @property
+    def local_address(self):
+        return self.socket.getsockname()[0] if self.event_connected.is_set() else None
+
     def connect(self, server_addr):
         self._new_socket()