/*
* @(#)Inet4AddressImpl.java 1.5 06/10/10
*
* Copyright 1990-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program 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 program 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 at /legal/license.txt).
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package java.net;
/*
* Package private implementation of InetAddressImpl for IPv4.
*
* @since 1.4
*/
class Inet4AddressImpl implements InetAddressImpl {
public native String getLocalHostName() throws UnknownHostException;
public native byte[][]
lookupAllHostAddr(String hostname) throws UnknownHostException;
public native String getHostByAddr(byte[] addr) throws UnknownHostException;
public synchronized InetAddress anyLocalAddress() {
if (anyLocalAddress == null) {
anyLocalAddress = new Inet4Address(); // {0x00,0x00,0x00,0x00}
anyLocalAddress.hostName = "0.0.0.0";
}
return anyLocalAddress;
}
public synchronized InetAddress loopbackAddress() {
if (loopbackAddress == null) {
byte[] loopback = {0x7f,0x00,0x00,0x01};
loopbackAddress = new Inet4Address("localhost", loopback);
}
return loopbackAddress;
}
private InetAddress anyLocalAddress;
private InetAddress loopbackAddress;
}