1 /*

     2  * Copyright (c) 2018, 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 8201510

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

    28  *          java.net.preferIPv4Stack is set to true

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

    30  */

    31 

    32 import java.net.InetSocketAddress;

    33 import java.net.ServerSocket;

    34 import java.net.Socket;

    35 import java.net.SocketException;

    36 

    37 public class RejectIPv6 {

    38 

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

    40         ServerSocket serverSocket = new ServerSocket(0);

    41         serverSocket.setSoTimeout(1000);

    42         int serverPort = serverSocket.getLocalPort();

    43         Socket clientSocket = new Socket();

    44 

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

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

    47 

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

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

    50     }

    51 

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

    53         Thread client = new Thread(() ->

    54             {

    55                 try {

    56                     codeToTest.run();

    57                     throw new RuntimeException(msg +

    58                             " failed to reject IPv6 address");

    59                 } catch (SocketException ok) {

    60                 } catch (Exception exc) {

    61                     throw new RuntimeException("unexpected", exc);

    62                 }

    63             });

    64         client.start();

    65         client.join();

    66     }

    67 

    68     interface CodeToTest {

    69         void run() throws Exception;

    70     }

    71 }