1 /*
   2  * Copyright (c) 2016, 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  * @bug 8168840
  27  * @summary InetAddress.getByName() throws java.net.UnknownHostException no such
  28  * interface when used with virtual interfaces on Solaris 
  29  */
  30 import java.net.InetAddress;
  31 import java.net.NetworkInterface;
  32 import java.net.SocketException;
  33 import java.net.UnknownHostException;
  34 import java.util.Collections;
  35 import java.util.Enumeration;
  36 
  37 public class SubNetworkInterfaceTest {
  38 
  39     public static void main(String args[]) throws SocketException, UnknownHostException {
  40         Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
  41         for (NetworkInterface netIf : Collections.list(nets)) {
  42             doReverseLookup(netIf);
  43         }
  44     }
  45 
  46     static void doReverseLookup(NetworkInterface netIf) throws SocketException, UnknownHostException {
  47         for (NetworkInterface subIf : Collections.list(netIf.getSubInterfaces())) {
  48             Enumeration<InetAddress> subInetAddresses = subIf.getInetAddresses();
  49             while (subInetAddresses != null && subInetAddresses.hasMoreElements()) {
  50                 InetAddress inetAddress = subInetAddresses.nextElement();
  51                 String reversalString = inetAddress.getHostAddress();
  52                 //should not throw UHE in case of virtual sub interface
  53                 InetAddress.getByName(reversalString);
  54             }
  55         }
  56     }
  57 }