/*

 * 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 4361783

 * @summary  Test to see if ICMP Port Unreachable on non-connected

 *           DatagramSocket causes a SocketException "socket closed"

 *           exception on Windows 2000.

 */

import java.net.InetAddress;

import java.net.DatagramSocket;

import java.net.DatagramPacket;

    DatagramSocket clientSock;

    int serverPort;

    int clientPort;

        try {

            InetAddress addr = InetAddress.getLocalHost();

            // send a delayed packet which should mean a delayed icmp

            // port unreachable

            byte b[] = "A late msg".getBytes();

            DatagramPacket packet = new DatagramPacket(b, b.length, addr,

                                                       serverPort);

            clientSock.send(packet);

            DatagramSocket sock = new DatagramSocket(serverPort);

            packet = new DatagramPacket(b, b.length, addr, clientPort);

            sock.send(packet);

            sock.close();

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

    PortUnreachable() throws Exception {

        clientSock = new DatagramSocket();

        clientPort = clientSock.getLocalPort();

        // pick a port for the server

        DatagramSocket sock2 = new DatagramSocket();

        serverPort = sock2.getLocalPort();

        // send a burst of packets to the unbound port - we should get back

        // icmp port unreachable messages

        //

        InetAddress addr = InetAddress.getLocalHost();

        byte b[] = "Hello me".getBytes();

        DatagramPacket packet = new DatagramPacket(b, b.length, addr,

                                                   serverPort);

        for (int i=0; i<100; i++)

            clientSock.send(packet);

        // try to receive

        clientSock.setSoTimeout(10000);

        clientSock.receive(packet);

        // done

        clientSock.close();

    }

    public static void main(String[] args) throws Exception {

    }

}