/*
* Copyright (c) 1998, Oracle and/or its affiliates. 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.
*
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*/
/*
* @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();
}
}