72 lines
2.7 KiB
C#
72 lines
2.7 KiB
C#
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using System;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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// Socket Listener acts as a server and listens to the incoming
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// messages on the specified port and protocol.
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public class SocketListener
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{
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public static int Main(String[] args)
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{
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StartServer();
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Console.WriteLine("\n Press any key to continue...");
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Console.ReadKey();
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return 0;
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}
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public static void StartServer()
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{
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// Get Host IP Address that is used to establish a connection
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// In this case, we get one IP address of localhost that is IP : 127.0.0.1
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// If a host has multiple addresses, you will get a list of addresses
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// IPHostEntry host = Dns.GetHostEntry("localhost");
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// IPAddress ipAddress = host.AddressList[0];
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IPAddress ipAddress = IPAddress.Parse("127.0.0.1");
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IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 11000);
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try {
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// Create a Socket that will use Tcp protocol
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Socket listener = new Socket(ipAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
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// A Socket must be associated with an endpoint using the Bind method
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listener.Bind(localEndPoint);
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// Specify how many requests a Socket can listen before it gives Server busy response.
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// We will listen 10 requests at a time
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listener.Listen(10);
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Console.WriteLine("Waiting for a connection...");
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Socket handler = listener.Accept();
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// Incoming data from the client.
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string data = null;
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byte[] bytes = null;
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while (true)
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{
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bytes = new byte[1024];
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int bytesRec = handler.Receive(bytes);
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data += Encoding.ASCII.GetString(bytes, 0, bytesRec);
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if (data.IndexOf("<EOF>") > -1)
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{
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break;
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}
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}
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Console.WriteLine("Text received : {0}", data);
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byte[] msg = Encoding.ASCII.GetBytes(data);
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handler.Send(msg);
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handler.Shutdown(SocketShutdown.Both);
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handler.Close();
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}
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catch (Exception e)
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{
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Console.WriteLine(e.ToString());
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}
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}
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}
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