/*

 * Copyright (c) 2017, 2019, 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 8179559 8225239

 */

import java.net.InetAddress;

import java.net.NetworkInterface;

import java.util.Enumeration;

import java.lang.reflect.Method;

public class NetworkInterfaceRetrievalTests {

    public static void main(String[] args) throws Exception {

        int checkFailureCount = 0;

        Method isBound = NetworkInterface.class.getDeclaredMethod("isBoundInetAddress", InetAddress.class);

        isBound.setAccessible(true);

        try {

            Enumeration<NetworkInterface> en = NetworkInterface

                    .getNetworkInterfaces();

            while (en.hasMoreElements()) {

                NetworkInterface ni = en.nextElement();

                Enumeration<InetAddress> addrs = ni.getInetAddresses();

                System.out.println("############ Checking network interface + "

                        + ni + " #############");

                while (addrs.hasMoreElements()) {

                    InetAddress addr = addrs.nextElement();

                    System.out.println("************ Checking address  + "

                            + addr + " *************");

                    NetworkInterface addrNetIf = NetworkInterface

                            .getByInetAddress(addr);

                    if (addrNetIf.equals(ni)) {

                        System.out.println("Retreived net if " + addrNetIf

                                + " equal to owning net if " + ni);

                    } else {

                        System.out.println("Retreived net if " + addrNetIf

                                + "NOT  equal to owning net if " + ni

                                + "***********");

                        checkFailureCount++;

                    }

                    // Any bound address should return true when calling isBoundInetAddress

                    if (!((boolean)isBound.invoke(null, addr))) {

                        System.out.println("Retreived net if bound addr " + addr

                                + "NOT shown as bound using NetworkInterface.isBoundAddress "

                                + "***********");

                        checkFailureCount++;

                    }

                }

            }

        } catch (Exception ex) {

        }

        if (checkFailureCount > 0) {

            throw new RuntimeException(

                    "NetworkInterface lookup by address didn't match owner network interface");

        }

    }

}