//----------------------------------------------------------------------
// Author: Matthias Lang (matthias@corelatus.com)
// Created: January 2001
// 
// Use:
//      java Minimum <gth-hostname> 
//
//      gth-hostname: the GTH's hostname (or IP address)
//
// Demonstration of the shortest possible (well...) Java program which
// can make the GTH do something useful. This causes the GTH to loop back
// any signalling or audio on timeslot 4 of the first PCM link.
//
// The process never exits; you need to press ^C or equivalent to end it.
//----------------------------------------------------------------------

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

public class Minimum {

    public static void main(String[] args) {
	final int PORT = 2089;
	int c;

	if (args.length != 1) 
	    throw new IllegalArgumentException("1. argument must be hostname");

	try {
	    String req = new String("<new>" +
				    "<connection>" +
				    "<pcm_source span=\"2A\" timeslot=\"4\"/>" +
				    "<pcm_sink   span=\"2A\" timeslot=\"4\"/>" +
				    "</connection>" +
				    "</new>");

	    Socket sock = new Socket(args[0], PORT);
	    DataOutputStream os = new DataOutputStream(sock.getOutputStream());
	    InputStream  is = sock.getInputStream();
	    os.writeBytes("Content-type: text/xml\r\n");
	    os.writeBytes("Content-length: " + req.length() + "\r\n\r\n");
	    os.writeBytes(req);

	    while (true) {
		c = is.read();
		if (c == -1) return;
		System.out.print((char)c);
	    }

	}
	catch (IOException e) {
	    System.out.println(e);
	}
    }
}