J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2001 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @bug 4503641 |
| 27 | * @summary Check that DatagramChannel.receive returns a new SocketAddress |
| 28 | * when it receives a packet from the same source address but |
| 29 | * different endpoint. |
| 30 | */ |
| 31 | import java.nio.*; |
| 32 | import java.nio.channels.*; |
| 33 | import java.net.*; |
| 34 | |
| 35 | public class ReceiveISA { |
| 36 | |
| 37 | public static void main(String args[]) throws Exception { |
| 38 | |
| 39 | // clients |
| 40 | DatagramChannel dc1 = DatagramChannel.open(); |
| 41 | DatagramChannel dc2 = DatagramChannel.open(); |
| 42 | |
| 43 | // bind server to any port |
| 44 | DatagramChannel dc3 = DatagramChannel.open(); |
| 45 | dc3.socket().bind((SocketAddress)null); |
| 46 | |
| 47 | // get server address |
| 48 | InetAddress lh = InetAddress.getLocalHost(); |
| 49 | InetSocketAddress isa |
| 50 | = new InetSocketAddress( lh, dc3.socket().getLocalPort() ); |
| 51 | |
| 52 | ByteBuffer bb = ByteBuffer.allocateDirect(100); |
| 53 | bb.put("Dia duit!".getBytes()); |
| 54 | bb.flip(); |
| 55 | |
| 56 | dc1.send(bb, isa); // packet 1 from dc1 |
| 57 | dc1.send(bb, isa); // packet 2 from dc1 |
| 58 | dc2.send(bb, isa); // packet 3 from dc1 |
| 59 | |
| 60 | // receive 3 packets |
| 61 | dc3.socket().setSoTimeout(1000); |
| 62 | ByteBuffer rb = ByteBuffer.allocateDirect(100); |
| 63 | SocketAddress sa[] = new SocketAddress[3]; |
| 64 | for (int i=0; i<3; i++) { |
| 65 | sa[i] = dc3.receive(rb); |
| 66 | rb.clear(); |
| 67 | } |
| 68 | |
| 69 | /* |
| 70 | * Check that sa[0] equals sa[1] (both from dc1) |
| 71 | * Check that sa[1] not equal to sa[2] (one from dc1, one from dc2) |
| 72 | */ |
| 73 | |
| 74 | if (!sa[0].equals(sa[1])) { |
| 75 | throw new Exception("Source address for packets 1 & 2 should be equal"); |
| 76 | } |
| 77 | |
| 78 | if (sa[1].equals(sa[2])) { |
| 79 | throw new Exception("Source address for packets 2 & 3 should be different"); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | } |