1 /* 2 * Copyright (c) 2002, 2005, Oracle and/or its affiliates. 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.net; 27 import java.io.IOException; 28 /* 29 * Package private interface to "implementation" used by 30 * {@link InetAddress}. 31 * <p> 32 * See {@link java.net.Inet4AddressImp} and 33 * {@link java.net.Inet6AddressImp}. 34 * 35 * @since 1.4 36 */ 37 interface InetAddressImpl { 38 /** 39 * Lookup all addresses for {@code hostname} on the given {@code netId}. 40 */ lookupAllHostAddr(String hostname, int netId)41 InetAddress[] lookupAllHostAddr(String hostname, int netId) throws UnknownHostException; 42 43 /** 44 * Reverse-lookup the host name for a given {@code addr}. 45 */ getHostByAddr(byte[] addr)46 String getHostByAddr(byte[] addr) throws UnknownHostException; 47 48 /** 49 * Clear address caches (if any). 50 */ clearAddressCache()51 public void clearAddressCache(); 52 53 /** 54 * Return the "any" local address. 55 */ anyLocalAddress()56 InetAddress anyLocalAddress(); 57 58 /** 59 * Return a list of loop back adresses for this implementation. 60 */ loopbackAddresses()61 InetAddress[] loopbackAddresses(); 62 63 /** 64 * Whether {@code addr} is reachable over {@code netif}. 65 */ isReachable(InetAddress addr, int timeout, NetworkInterface netif, int ttl)66 boolean isReachable(InetAddress addr, int timeout, NetworkInterface netif, 67 int ttl) throws IOException; 68 } 69