* ignored data recieved from closed sockets

* removed some warnings

OpenSim/OpenSim.RegionServer/Client/ClientView.Grid.cs

@@ -98,7 +98,7 @@ namespace OpenSim.RegionServer.Client
                         enablesimpacket.SimulatorInfo.Port = neighbourPort;
                         enablePackets.Add(enablesimpacket);
                     }
-                    catch (Exception e)
+                    catch
                     {
                         MainConsole.Instance.Notice("Could not connect to neighbour " + neighbour["sim_ip"] + ":" + neighbour["sim_port"] + ", continuing.");
                     }

OpenSim/OpenSim.RegionServer/Simulator/ParcelManager.cs

@@ -237,7 +237,7 @@ namespace OpenSim.RegionServer.Simulator
                     }
                 }
             }
-            catch (Exception e)
+            catch
             {
                 return false; //Exception. For now, lets skip subdivision
             }
@@ -294,7 +294,7 @@ namespace OpenSim.RegionServer.Simulator
                 startParcel = getParcel(start_x, start_y);
                 endParcel = getParcel(end_x, end_y);
             }
-            catch (Exception e)
+            catch
             {
                 return false; //Error occured when trying to get the start and end parcels
             }

OpenSim/OpenSim.RegionServer/Simulator/World.cs

@@ -478,7 +478,7 @@ namespace OpenSim.RegionServer.Simulator
                             this.Terrain.loadFromFileF32(this.m_regInfo.estateSettings.terrainFile);
                             this.Terrain *= this.m_regInfo.estateSettings.terrainMultiplier;
                         }
-                        catch (Exception e)
+                        catch
                         {
                             Console.WriteLine("Unable to load default terrain, procedurally generating instead...");
                             Terrain.hills();

OpenSim/OpenSim.RegionServer/UDPServer.cs

@@ -135,7 +135,28 @@ namespace OpenSim.RegionServer
             ipeSender = new IPEndPoint(IPAddress.Any, 0);
             epSender = (EndPoint)ipeSender;
             Packet packet = null;
-            int numBytes = Server.EndReceiveFrom(result, ref epSender);
+
+            int numBytes;
+
+            try
+            {
+                numBytes = Server.EndReceiveFrom(result, ref epSender);
+            }
+            catch (SocketException e)
+            {
+                switch( e.SocketErrorCode )
+                {
+                    case SocketError.NotConnected:
+                    case SocketError.ConnectionReset:
+                        // At this point, we should clear the client connection altogether.
+                        // The app should hook a disconnect event into the UDPServer.
+                        // But for now, just ignore it.
+                        return;
+                       default:
+                        throw;
+                }
+            }
+
             int packetEnd = numBytes - 1;
 
             packet = Packet.BuildPacket(RecvBuffer, ref packetEnd, ZeroBuffer);