1 /* 2 * Copyright (c) 2001, 2010, 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 /* @test 25 * @bug 4455376 26 * @summary Ensure that socket objects obtained from channels 27 * carry the correct address information 28 */ 29 30 import java.io.*; 31 import java.net.*; 32 import java.nio.*; 33 import java.nio.channels.*; 34 35 36 public class Shadow { 37 38 static PrintStream log = System.err; 39 dump(ServerSocket s)40 private static void dump(ServerSocket s) { 41 log.println("getInetAddress(): " + s.getInetAddress()); 42 log.println("getLocalPort(): " + s.getLocalPort()); 43 } 44 dump(Socket s)45 private static void dump(Socket s) { 46 log.println("getInetAddress(): " + s.getInetAddress()); 47 log.println("getPort(): " + s.getPort()); 48 log.println("getLocalAddress(): " + s.getLocalAddress()); 49 log.println("getLocalPort(): " + s.getLocalPort()); 50 } 51 52 private static int problems = 0; 53 problem(String s)54 private static void problem(String s) { 55 log.println("FAILURE: " + s); 56 problems++; 57 } 58 check(Socket s)59 private static void check(Socket s) { 60 if (s.getPort() == 0) 61 problem("Socket has no port"); 62 if (s.getLocalPort() == 0) 63 problem("Socket has no local port"); 64 if (!s.getLocalAddress().equals(s.getInetAddress())) 65 problem("Socket has wrong local address"); 66 } 67 main(String[] args)68 public static void main(String[] args) throws Exception { 69 boolean useChannels 70 = ((args.length == 0) || Boolean.valueOf(args[0]).booleanValue()); 71 int port = (args.length > 1 ? Integer.parseInt(args[1]) : -1); 72 73 // open server socket 74 ServerSocket serverSocket; 75 if (useChannels) { 76 ServerSocketChannel serverSocketChannel = 77 ServerSocketChannel.open(); 78 log.println("opened ServerSocketChannel: " + 79 serverSocketChannel); 80 serverSocket = serverSocketChannel.socket(); 81 log.println("associated ServerSocket: " + serverSocket); 82 } else { 83 serverSocket = new ServerSocket(); 84 log.println("opened ServerSocket: " + serverSocket); 85 } 86 87 // bind server socket to port 88 SocketAddress bindAddr = 89 new InetSocketAddress((port == -1) ? 0 : port); 90 serverSocket.bind(bindAddr); 91 log.println("bound ServerSocket: " + serverSocket); 92 93 log.println(); 94 95 // open client socket 96 Socket socket; 97 if (useChannels) { 98 SocketChannel socketChannel = SocketChannel.open(); 99 log.println("opened SocketChannel: " + socketChannel); 100 101 socket = socketChannel.socket(); 102 log.println("associated Socket: " + socket); 103 } else { 104 socket = new Socket(); 105 log.println("opened Socket: " + socket); 106 } 107 108 // connect client socket to port 109 SocketAddress connectAddr = 110 new InetSocketAddress("127.0.0.1", 111 serverSocket.getLocalPort()); 112 socket.connect(connectAddr); 113 log.println("connected Socket: " + socket); 114 115 log.println(); 116 117 // accept connection 118 Socket acceptedSocket = serverSocket.accept(); 119 log.println("accepted Socket: " + acceptedSocket); 120 121 log.println(); 122 log.println("========================================"); 123 124 log.println("*** ServerSocket info: "); 125 dump(serverSocket); 126 log.println(); 127 128 log.println("*** client Socket info: "); 129 dump(socket); 130 check(socket); 131 log.println(); 132 133 log.println("*** accepted Socket info: "); 134 dump(acceptedSocket); 135 check(acceptedSocket); 136 log.println(); 137 138 if (problems > 0) 139 throw new Exception(problems + " tests failed"); 140 } 141 142 } 143