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  * If the platform has IPv6 we spawn a child process simulating the
  26  * effect of being launched from node.js. We check that IPv6 is available in the child
  27  * and report back as appropriate.
  28  */
  29 
  30 import jdk.test.lib.Utils;
  31 import java.io.*;
  32 import java.net.InetAddress;
  33 import java.net.Inet6Address;
  34 import java.net.NetworkInterface;





  35 import java.util.Collections;
  36 import java.util.Enumeration;
  37 


  38 public class UnixSocketTest {
  39 
  40     static boolean hasIPv6() throws Exception {
  41         Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
  42         for (NetworkInterface netint : Collections.list(nets)) {
  43             Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
  44             for (InetAddress inetAddress : Collections.list(inetAddresses)) {
  45                 if (inetAddress instanceof Inet6Address) {
  46                     return true;
  47                 }
  48             }
  49         }
  50         return false;
  51     }
  52 
  53     public static class Child {
  54         public static void main(String[] args) throws Exception {
  55             System.out.write('X');
  56             System.out.flush();
  57             if (hasIPv6()) {
  58                 System.out.println("Y"); // GOOD
  59             } else
  60                 System.out.println("N"); // BAD





  61         }
  62     }
  63 
  64     public static void main(String args[]) throws Exception {
  65 
  66         if (!hasIPv6()) {
  67             return; // can only test if IPv6 is present


  68         }
  69         UnixDomainSocket sock = Launcher.launchWithUnixDomainSocket("UnixSocketTest$Child");
  70         if (sock.read() != 'X') {







  71             System.exit(-2);
  72         }
  73         if (sock.read() != 'Y') {
  74             System.exit(-2);
  75         }
  76     }
  77 }

   1 /*
   2  * Copyright (c) 2018, 2020, 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 import java.net.InetAddress;
  25 import java.net.Inet6Address;
  26 import java.net.NetworkInterface;
  27 import java.net.UnixDomainSocketAddress;
  28 import java.nio.ByteBuffer;
  29 import java.nio.channels.SocketChannel;
  30 import java.nio.channels.ServerSocketChannel;
  31 import java.nio.file.Files;
  32 import java.util.Collections;
  33 import java.util.Enumeration;
  34 
  35 import static java.net.StandardProtocolFamily.UNIX;
  36 
  37 public class UnixSocketTest {
  38 
  39     public static class Child1 {
  40         public static void main(String[] args) throws Exception {
  41             SocketChannel chan = (SocketChannel)System.inheritedChannel();
  42             ByteBuffer bb = ByteBuffer.allocate(2);
  43             bb.put((byte)'X');
  44             bb.put((byte)'Y');
  45             bb.flip();
  46             chan.write(bb);
  47             chan.close();
  48         }

  49     }
  50 
  51     public static class Child2 {
  52         public static void main(String[] args) throws Exception {
  53             ServerSocketChannel server = (ServerSocketChannel)System.inheritedChannel();
  54             SocketChannel chan = server.accept();
  55             UnixDomainSocketAddress sa = (UnixDomainSocketAddress)server.getLocalAddress();
  56             Files.delete(sa.getPath());
  57             server.close();
  58             ByteBuffer bb = ByteBuffer.allocate(2);
  59             bb.put((byte)'X');
  60             bb.put((byte)'Y');
  61             bb.flip();
  62             chan.write(bb);
  63             chan.close();
  64         }
  65     }
  66 
  67     public static void main(String args[]) throws Exception {
  68         SocketChannel sc = Launcher.launchWithUnixSocketChannel("UnixSocketTest$Child1");
  69         ByteBuffer bb = ByteBuffer.allocate(10);
  70         sc.read(bb);
  71         if (bb.get(0) != 'X') {
  72             System.exit(-2);
  73         }
  74         if (bb.get(1) != 'Y') {
  75             System.exit(-2);
  76         }
  77         sc.close();
  78 
  79         sc = Launcher.launchWithUnixServerSocketChannel("UnixSocketTest$Child2");
  80         bb.clear();
  81         sc.read(bb);
  82         if (bb.get(0) != 'X') {
  83             System.exit(-2);
  84         }
  85         if (bb.get(1) != 'Y') {
  86             System.exit(-2);
  87         }
  88     }
  89 }