1 /*
   2  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @summary <rdar://problem/4619360> [JavaJDK16] JavaJDK16: Need to set prefixlen for IPv6 address
  27  * @summary com.apple.junit.java.net
  28  * @run junit IPv6PrefixLenTest
  29  */
  30 
  31 import java.net.*;
  32 import java.util.*;
  33 import junit.framework.*;
  34 
  35 public class IPv6PrefixLenTest extends TestCase {
  36 
  37     public static Test suite() {
  38         return new TestSuite(IPv6PrefixLenTest.class);
  39     }
  40 
  41     public static void main (String[] args) throws RuntimeException {
  42         TestResult tr = junit.textui.TestRunner.run(suite());
  43         if ((tr.errorCount() != 0) || (tr.failureCount() != 0)) {
  44             throw new RuntimeException("### FAILED: unexpected JUnit errors or failures.");
  45         }
  46     }
  47 
  48     public void testPrefixLen() throws Exception
  49     {
  50         Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
  51         while (interfaces.hasMoreElements()) {
  52             NetworkInterface i = interfaces.nextElement();
  53             List<InterfaceAddress> interfaceAddresses = i.getInterfaceAddresses();
  54             for (InterfaceAddress ia : interfaceAddresses) {
  55                 InetAddress addr = ia.getAddress();
  56                 if (addr instanceof Inet6Address) {
  57                     assertTrue("IPv6 address [ " + addr + " ] had 0 prefixlen. This is probably wrong.", (ia.getNetworkPrefixLength() != 0));
  58                     assertNull("IPv6 address has non-null broadcast address", ia.getBroadcast());
  59                 }
  60             }
  61         }
  62     }
  63 
  64 }