bool disconnect = false;
                while (!disconnect)
                {
                    if (sock.Connected)
                    {
                        if (sock.Poll(0, SelectMode.SelectRead))
                        {
                            try
                            {
                                byte[] buff = new byte[1];
                                if (sock.Receive(buff, SocketFlags.Peek) == 0) { disconnect = true; } else { Thread.Sleep(100); }
                            }
                            catch (SocketException) { disconnect = true; }   
                        }
                    }
                    else { disconnect = true; }   
                }