public void StartReceiving(ITextChanger ipText) { TcpListener server = null; try { // Set the TcpListener on port 13000. Int32 port = 13000; IPAddress localAddress = IPAddress.Parse(ipv4Address); ipText.ChangeText(localAddress.MapToIPv4().ToString()); server = new TcpListener(localAddress, port); // Start listening for client requests. server.Start(); // Buffer for reading data Byte[] bytes = new Byte[256]; String data = null; // Enter the listening loop. while (true) { Logger.GetInstance().NotifyAll("Waiting for a connection... "); // Perform a blocking call to accept requests. // You could also use server.AcceptSocket() here. TcpClient client = server.AcceptTcpClient(); Logger.GetInstance().NotifyAll("Connected!"); data = null; // Get a stream object for reading and writing NetworkStream stream = client.GetStream(); int i; // Loop to receive all the data sent by the client. while ((i = stream.Read(bytes, 0, bytes.Length)) != 0) { // Translate data bytes to a ASCII string. data = System.Text.Encoding.ASCII.GetString(bytes, 0, i); Logger.GetInstance().NotifyAll("Received: " + data); List <Message> newMessage = UtilityFunctions.MessageParser(data); MessageCollection.GetInstance().AddListOfMessages(newMessage); // Process the data sent by the client. //data = data.ToUpper(); byte[] msg = System.Text.Encoding.ASCII.GetBytes(newMessage[0].Call()); // Send back a response. stream.Write(msg, 0, msg.Length); Logger.GetInstance().NotifyAll("Sent: " + data); } // Shutdown and end connection //client.Close(); } } catch (SocketException e) { Logger.GetInstance().NotifyAll("SocketException: " + e); } finally { // Stop listening for new clients. server.Stop(); Logger.GetInstance().NotifyAll("Server has stopped listening"); } }