0N/A/*
2362N/A * Copyright (c) 2002, 2005, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/Apackage java.net;
0N/Aimport java.io.IOException;
0N/A
0N/A/*
0N/A * Package private implementation of InetAddressImpl for IPv4.
0N/A *
0N/A * @since 1.4
0N/A */
0N/Aclass Inet4AddressImpl implements InetAddressImpl {
0N/A public native String getLocalHostName() throws UnknownHostException;
0N/A public native InetAddress[]
0N/A lookupAllHostAddr(String hostname) throws UnknownHostException;
0N/A public native String getHostByAddr(byte[] addr) throws UnknownHostException;
0N/A private native boolean isReachable0(byte[] addr, int timeout, byte[] ifaddr, int ttl) throws IOException;
0N/A
0N/A public synchronized InetAddress anyLocalAddress() {
0N/A if (anyLocalAddress == null) {
0N/A anyLocalAddress = new Inet4Address(); // {0x00,0x00,0x00,0x00}
5888N/A anyLocalAddress.holder().hostName = "0.0.0.0";
0N/A }
0N/A return anyLocalAddress;
0N/A }
0N/A
0N/A public synchronized InetAddress loopbackAddress() {
0N/A if (loopbackAddress == null) {
0N/A byte[] loopback = {0x7f,0x00,0x00,0x01};
0N/A loopbackAddress = new Inet4Address("localhost", loopback);
0N/A }
0N/A return loopbackAddress;
0N/A }
0N/A
0N/A public boolean isReachable(InetAddress addr, int timeout, NetworkInterface netif, int ttl) throws IOException {
0N/A byte[] ifaddr = null;
0N/A if (netif != null) {
0N/A /*
0N/A * Let's make sure we use an address of the proper family
0N/A */
0N/A java.util.Enumeration it = netif.getInetAddresses();
0N/A InetAddress inetaddr = null;
0N/A while (!(inetaddr instanceof Inet4Address) &&
0N/A it.hasMoreElements())
0N/A inetaddr = (InetAddress) it.nextElement();
0N/A if (inetaddr instanceof Inet4Address)
0N/A ifaddr = inetaddr.getAddress();
0N/A }
0N/A return isReachable0(addr.getAddress(), timeout, ifaddr, ttl);
0N/A }
0N/A private InetAddress anyLocalAddress;
0N/A private InetAddress loopbackAddress;
0N/A}