/*

 * Copyright (c) 2001, 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.

 */

/*

 *

 * @bug 4488458

 * @summary Test that MutlicastSocket.joinGroup is working for

 *          various multicast and non-multicast addresses.

 */

import java.net.*;

import java.util.Enumeration;

import java.io.IOException;

public class MulticastAddresses {

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

        boolean ipv6_available = false;

        NetworkInterface ni = null;

        /*

         * Examine the network interfaces and determine :-

         *

         * 1. If host has IPv6 support

         * 2. Get reference to a non-loopback interface

         */

        Enumeration nifs = NetworkInterface.getNetworkInterfaces();

        while (nifs.hasMoreElements()) {

            NetworkInterface this_ni = (NetworkInterface)nifs.nextElement();

            Enumeration addrs = this_ni.getInetAddresses();

            while (addrs.hasMoreElements()) {

                InetAddress addr = (InetAddress)addrs.nextElement();

                if (addr instanceof Inet6Address) {

                    ipv6_available = true;

                }

                if (!addr.isLoopbackAddress() && ni == null) {

                    ni = this_ni;

                }

            }

            if (ipv6_available) {

                break;

            }

        }

        int failures = 0;

        String multicasts[] = {

                "224.80.80.80",

                "ff01::1",

                "ff02::1234",

                "ff05::a",

                "ff0e::1234:a" };

        String non_multicasts[] = {

                "129.1.1.1",

                "::1",

                "::129.1.1.1",

                "fe80::a00:20ff:fee5:bc02" };

        MulticastSocket s = new MulticastSocket();

        /* test valid multicast addresses */

        for (int i=0; i<multicasts.length; i++) {

            InetAddress ia = InetAddress.getByName(multicasts[i]);

            if (ia instanceof Inet6Address && !ipv6_available) {

                continue;

            }

            System.out.println("Test: " + ia);

            try {

                System.out.print("    joinGroup(InetAddress) ");

                s.joinGroup(ia);

                s.leaveGroup(ia);

                System.out.println("    Passed.");

                System.out.print("    joinGroup(InetAddress,NetworkInterface) ");

                s.joinGroup(new InetSocketAddress(ia,0), ni);

                s.leaveGroup(new InetSocketAddress(ia,0), ni);

                System.out.println("    Passed.");

            } catch (IOException e) {

                failures++;

                System.out.println("Failed: " + e.getMessage());

            }

        }

        /* test non-multicast addresses */

        for (int i=0; i<non_multicasts.length; i++) {

            InetAddress ia = InetAddress.getByName(non_multicasts[i]);

            if (ia instanceof Inet6Address && !ipv6_available) {

                continue;

            }

            boolean failed = false;

            System.out.println("Test: " + ia + " ");

            try {

                System.out.println("    joinGroup(InetAddress) ");

                s.joinGroup(ia);

                System.out.println("Failed!! -- incorrectly joined group");

                failed = true;

            } catch (IOException e) {

                System.out.println("    Passed: " + e.getMessage());

            }

            if (failed) {

                s.leaveGroup(ia);

                failures++;

            }

        }

        /* done */

        s.close();

        if (failures > 0) {

            throw new Exception(failures + " test(s) failed - see log file.");

        }

    }

}