/*
 * A Minimal echo server.
 *
 * Copyright (c) 2004 Michael Schierl
 *
 * Licensed unter GNU General Public License.
 */

import java.io.*;
import java.net.*;

public class EchoServer extends Thread {

    public static void main(String[] args) throws IOException {
	ServerSocket ss = new ServerSocket(Integer.parseInt(args[0]));
	while (true) {
	    Socket s = ss.accept();
	    new EchoServer(s);
	}
    }

    private Socket s;
    
    public EchoServer(Socket s) {
	this.s=s;
	start();
    }

    public void run() {
	try {
	    InputStream in = s.getInputStream();
	    OutputStream out = s.getOutputStream();
	    byte[] b = new byte[4096];
	    int len;
	    while ((len = in.read(b)) != -1) {
		out.write(b, 0, len);
	    }
	} catch (SocketException ex) {
	    // nothing
	} catch (IOException ex) {
	    ex.printStackTrace();
	}
    }
}