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/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/*
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*
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* (C) Copyright IBM Corp. 1999 All Rights Reserved.
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* Copyright 1997 The Open Group Research Institute. All rights reserved.
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*/
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package sun.security.krb5.internal;
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import java.io.*;
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import java.net.*;
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public class UDPClient {
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InetAddress iaddr;
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int iport;
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int bufSize = 65507;
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DatagramSocket dgSocket;
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DatagramPacket dgPacketIn;
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public UDPClient(InetAddress newIAddr, int port)
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throws SocketException {
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iaddr = newIAddr;
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iport = port;
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dgSocket = new DatagramSocket();
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}
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public UDPClient(String hostname, int port)
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throws UnknownHostException, SocketException {
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iaddr = InetAddress.getByName(hostname);
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iport = port;
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dgSocket = new DatagramSocket();
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}
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public UDPClient(String hostname, int port, int timeout)
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throws UnknownHostException, SocketException {
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iaddr = InetAddress.getByName(hostname);
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iport = port;
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dgSocket = new DatagramSocket();
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dgSocket.setSoTimeout(timeout);
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}
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public void setBufSize(int newBufSize) {
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bufSize = newBufSize;
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}
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public InetAddress getInetAddress() {
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if (dgPacketIn != null)
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return dgPacketIn.getAddress();
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return null;
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}
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public void send(byte[] data) throws IOException {
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DatagramPacket dgPacketOut = new DatagramPacket(data, data.length,
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iaddr, iport);
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dgSocket.send(dgPacketOut);
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}
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public byte[] receive() throws IOException {
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byte ibuf[] = new byte[bufSize];
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dgPacketIn = new DatagramPacket(ibuf, ibuf.length);
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try {
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dgSocket.receive(dgPacketIn);
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}
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catch (SocketException e) {
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dgSocket.receive(dgPacketIn);
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}
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byte[] data = new byte[dgPacketIn.getLength()];
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System.arraycopy(dgPacketIn.getData(), 0, data, 0,
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dgPacketIn.getLength());
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return data;
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}
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}
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