/*

 * Copyright 1998 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/*

 * @test

 * @bug 4089415

 * @summary Test MulticastSocket send for modification of ttl

 *

 */

import java.io.*;

import java.net.*;

public class MulticastTTL {

    public static void main(String args[]) throws Exception {

        MulticastSocket soc = null;

        DatagramPacket pac = null;

        InetAddress sin = null;

        byte [] array = new byte[65537];

        int port = 0;

        byte old_ttl = 0;

        byte new_ttl = 64;

        byte ttl = 0;

        sin = InetAddress.getByName("224.80.80.80");

        soc = new MulticastSocket();

        port = soc.getLocalPort();

        old_ttl = soc.getTTL();

        pac = new DatagramPacket(array, array.length, sin, port);

        try {

            soc.send(pac, new_ttl);

        } catch(java.io.IOException e) {

            ttl = soc.getTTL();

            soc.close();

            if(ttl != old_ttl)

                throw new RuntimeException("TTL ");

        }

        soc.close();

    }

}