{

public class WebServerhelper

{

private Socket connectionSocket;

public WebServerhelper(Socket connectinSocket)

{

this.connectionSocket = connectionSocket;

}

public static void Main1(string[] args)

{

string name = "localhost";

IPAddress[] addrs = Dns.GetHostEntry(name).AddressList;

Console.WriteLine(addrs[0]);

Console.WriteLine(addrs[1]);

//TcpListener welcomeSocket = new TcpListener(addrs[1], 6789);

//IPAddress ip = IPAddress.Parse("127.0.0.1");

//TcpListener serverSocket = new TcpListener(ip, 6789);

TcpListener serverSocket = new TcpListener(6789);

serverSocket.Start();

while (true)

{

Socket connectionSocket = serverSocket.AcceptSocket();

Console.WriteLine("Server activated now");

WebServerhelper service = new WebServerhelper(connectionSocket);

service.DoIt();

}

serverSocket.Stop();

}

private void DoIt()

{

Stream ns = new NetworkStream(connectionSocket);

StreamReader sr = new StreamReader(ns);

StreamWriter sw = new StreamWriter(ns);

sw.AutoFlush = true; // enable automatic flushing

string message = sr.ReadLine();

string answer;

while (message != null && message != "")

{

Console.WriteLine("Client: " + message);

answer = message.ToUpper();

sw.WriteLine(answer);

message = sr.ReadLine();

}

connectionSocket.Close();

}

}