TcpListener Class
using System;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Text;
class MyTcpListener
{
public static void Main()
{
TcpListener server=null;
try
{
server = new TcpListener(IPAddress.Parse("127.0.0.1"), 13000);
server.Start();
Byte[] bytes = new Byte[256];
String data = null;
while(true)
{
TcpClient client = server.AcceptTcpClient();
Console.WriteLine("Connected!");
data = null;
NetworkStream stream = client.GetStream();
int i;
while((i = stream.Read(bytes, 0, bytes.Length))!=0)
{
data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
Console.WriteLine(data);
data = data.ToUpper();
byte[] msg = System.Text.Encoding.ASCII.GetBytes(data);
stream.Write(msg, 0, msg.Length);
Console.WriteLine("Sent: {0}", data);
}
client.Close();
}
}
catch(SocketException e)
{
Console.WriteLine("SocketException: {0}", e);
}
finally
{
server.Stop();
}
Console.WriteLine("\nHit enter to continue...");
Console.Read();
}
}
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