// (c) F. Merciol
// Plus d'informations sur http://m3101.merciol.fr
package network;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;

public class RecvCmd {

    public static void main (String[] args) {
				if (args.length != 1) {
						System.err.println ("Usage: RecvCmd port");
						System.exit (1);
				}
				try {
						int port = Integer.parseInt (args [0]);
						ServerSocket serverSocket = new ServerSocket (port);
						System.err.println ("Start server on port "+port);

						for (;;) {
								Socket call = serverSocket.accept ();
								System.err.println ("Client comming from "+
																		call.getRemoteSocketAddress ());
								BufferedReader in =
										new BufferedReader
										(new InputStreamReader (call.getInputStream ()));
								PrintStream out =
										new PrintStream (call.getOutputStream (), true);
								BufferedReader sysin =
										new BufferedReader (new InputStreamReader (System.in));
								for (;;) {
										String line1 = in.readLine ();
										if (line1 == null)
												break;
										System.out.println (line1);
										System.out.flush ();
										String line2 = sysin.readLine ();
										out.println (line2);
										out.flush ();
								}
								System.err.println ("Socket closed");
						}
				} catch (Exception e) {
						e.printStackTrace ();
				}
				System.err.println ("Server closed");
				System.err.flush ();
		}
}