/*
* 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
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* 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();
}
}
Messung V0.5 in Prozent C=94 H=79 G=86
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-11)
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