From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libjava/classpath/java/net/Inet4Address.java | 273 +++++++++++++++++++++++++++ 1 file changed, 273 insertions(+) create mode 100644 libjava/classpath/java/net/Inet4Address.java (limited to 'libjava/classpath/java/net/Inet4Address.java') diff --git a/libjava/classpath/java/net/Inet4Address.java b/libjava/classpath/java/net/Inet4Address.java new file mode 100644 index 000000000..e3cff7b13 --- /dev/null +++ b/libjava/classpath/java/net/Inet4Address.java @@ -0,0 +1,273 @@ +/* Inet4Address.java -- + Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.net; + +import gnu.java.lang.CPStringBuilder; + +import java.io.ObjectStreamException; + +/* + * Written using on-line Java Platform 1.4 API Specification and + * RFC 1884 (http://www.ietf.org/rfc/rfc1884.txt), + * RFC 1918 (http://www.ietf.org/rfc/rfc1918.txt), + * RFC 2365 (http://www.ietf.org/rfc/rfc2365.txt) + * + * @author Michael Koch + * @status Believed complete and correct. + */ +public final class Inet4Address extends InetAddress +{ + /** + * For compatability with Sun's JDK 1.4.2 rev. 5 + */ + static final long serialVersionUID = 3286316764910316507L; + + /** + * The address family of these addresses (used for serialization). + */ + private static final int AF_INET = 2; + + /** + * Inet4Address objects are serialized as InetAddress objects. + */ + private Object writeReplace() throws ObjectStreamException + { + return new InetAddress(addr, hostName, AF_INET); + } + + /** + * Initializes this object's addr instance variable from the passed in + * byte array. Note that this constructor is protected and is called + * only by static methods in this class. + * + * @param addr The IP number of this address as an array of bytes + * @param host The hostname of this IP address. + */ + Inet4Address(byte[] addr, String host) + { + super(addr, host, AF_INET); + } + + /** + * Checks if the address is a multicast address + * + * @since 1.1 + */ + public boolean isMulticastAddress() + { + return (addr[0] & 0xf0) == 0xe0; + } + + /** + * Checks if this address is a loopback address + */ + public boolean isLoopbackAddress() + { + return (addr[0] & 0xff) == 0x7f; + } + + /** + * Checks if this address is a wildcard address + * + * @since 1.4 + */ + public boolean isAnyLocalAddress() + { + return equals(InetAddress.ANY_IF); + } + + /** + * Checks if this address is a link local address + * + * @since 1.4 + */ + public boolean isLinkLocalAddress() + { + return false; + } + + /** + * Checks if this address is a site local address + * + * @since 1.4 + */ + public boolean isSiteLocalAddress() + { + // 10.0.0.0/8 + if ((addr[0] & 0xff) == 0x0a) + return true; + + // 172.16.0.0/12 + if ((addr[0] & 0xff) == 0xac && (addr[1] & 0xf0) == 0x10) + return true; + + // 192.168.0.0/16 + if ((addr[0] & 0xff) == 0xc0 && (addr[1] & 0xff) == 0xa8) + return true; + + return false; + } + + /** + * Checks if this multicast address has global scope + * + * @since 1.4 + */ + public boolean isMCGlobal() + { + return false; + } + + /** + * Checks if this multicast address has node scope + * + * @since 1.4 + */ + public boolean isMCNodeLocal() + { + return false; + } + + /** + * Checks if this multicast address has link scope + * + * @since 1.4 + */ + public boolean isMCLinkLocal() + { + if (! isMulticastAddress()) + return false; + + return ((addr[0] & 0xff) == 0xe0 + && (addr[1] & 0xff) == 0x00 + && (addr[2] & 0xff) == 0x00); + } + + /** + * Checks if this multicast address has site scope + * + * @since 1.4 + */ + public boolean isMCSiteLocal() + { + return false; + } + + /** + * Checks if this multicast address has organization scope + * + * @since 1.4 + */ + public boolean isMCOrgLocal() + { + return false; + } + + /** + * Returns the address of the current instance + */ + public byte[] getAddress() + { + return (byte[]) addr.clone(); + } + + /** + * Returns the address as string + * + * @since 1.0.2 + */ + public String getHostAddress() + { + CPStringBuilder sb = new CPStringBuilder(40); + + int len = addr.length; + int i = 0; + + for ( ; ; ) + { + sb.append(addr[i] & 0xff); + i++; + + if (i == len) + break; + + sb.append('.'); + } + + return sb.toString(); + } + + /** + * Computes the hashcode of the instance + */ + public int hashCode() + { + int hash = 0; + int len = addr.length; + int i = len > 4 ? len - 4 : 0; + + for (; i < len; i++) + hash = (hash << 8) | (addr[i] & 0xFF); + + return hash; + } + + /** + * Compare the current Inet4Address instance with obj + * + * @param obj Object to compare with + */ + public boolean equals(Object obj) + { + if (! (obj instanceof InetAddress)) + return false; + + byte[] addr1 = addr; + byte[] addr2 = ((InetAddress) obj).addr; + + if (addr1.length != addr2.length) + return false; + + for (int i = addr1.length; --i >= 0;) + if (addr1[i] != addr2[i]) + return false; + + return true; + } +} -- cgit v1.2.3