/*

 * Copyright (c) 2018, 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 8201510

 * @summary Make sure IPv6 addresses are rejected when the System option

 *          java.net.preferIPv4Stack is set to true

 * @run main/othervm -Djava.net.preferIPv4Stack=true RejectIPv6

 */

import java.net.InetSocketAddress;

import java.net.ServerSocket;

import java.net.Socket;

import java.net.SocketException;

public class RejectIPv6 {

    public static void main(String [] argv) throws Throwable {

        ServerSocket serverSocket = new ServerSocket(0);

        serverSocket.setSoTimeout(1000);

        int serverPort = serverSocket.getLocalPort();

        Socket clientSocket = new Socket();

        test("bind", () -> clientSocket.bind(

                new InetSocketAddress("::1", 0)));

        test("connect", () -> clientSocket.connect(

                new InetSocketAddress("::1", serverPort), 1000));

    }

    static void test(String msg, CodeToTest codeToTest) throws Throwable {

        Thread client = new Thread(() ->

            {

                try {

                    codeToTest.run();

                    throw new RuntimeException(msg +

                            " failed to reject IPv6 address");

                } catch (SocketException ok) {

                } catch (Exception exc) {

                    throw new RuntimeException("unexpected", exc);

                }

            });

        client.start();

        client.join();

    }

    interface CodeToTest {

        void run() throws Exception;

    }

}