| /* |
| * 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. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.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(); |
| } |
| } |