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+/* Inet6Address.java
+ Copyright (C) 2002 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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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 java.io.IOException;
+
+/**
+ * @author Michael Koch
+ * @date August 3, 2002.
+ */
+
+/*
+ * Written using on-line Java Platform 1.4 API Specification and
+ * RFC 1884 (http://www.ietf.org/rfc/rfc1884.txt)
+ * Status: Believed complete and correct.
+ */
+
+public final class Inet6Address extends InetAddress
+{
+ static final long serialVersionUID = 6880410070516793377L;
+
+ /**
+ * Needed for serialization
+ */
+ byte[] ipaddress;
+
+ /**
+ * Create an Inet6Address object
+ *
+ * @param addr The IP address
+ * @param host The hostname
+ */
+ protected Inet6Address (byte[] addr, String host)
+ {
+ super (null, host);
+ this.ipaddress = addr;
+ }
+
+ /**
+ * Utility routine to check if the InetAddress is an IP multicast address
+ *
+ * @since 1.1
+ */
+ public boolean isMulticastAddress ()
+ {
+ return ipaddress [0] == 0xFF;
+ }
+
+ /**
+ * Utility routine to check if the InetAddress in a wildcard address
+ *
+ * @since 1.4
+ */
+ public boolean isAnyLocalAddress ()
+ {
+ byte[] anylocal = { 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0 };
+
+ return ipaddress == anylocal;
+ }
+
+ /**
+ * Utility routine to check if the InetAddress is a loopback address
+ *
+ * @since 1.4
+ */
+ public boolean isLoopbackAddress ()
+ {
+ byte[] loopback = { 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 1 };
+
+ return ipaddress == loopback;
+ }
+
+ /**
+ * Utility routine to check if the InetAddress is an link local address
+ *
+ * @since 1.4
+ */
+ public boolean isLinkLocalAddress ()
+ {
+ return ipaddress [0] == 0xFA;
+ }
+
+ /**
+ * Utility routine to check if the InetAddress is a site local address
+ *
+ * @since 1.4
+ */
+ public boolean isSiteLocalAddress ()
+ {
+ return ipaddress [0] == 0xFB;
+ }
+
+ /**
+ * Utility routine to check if the multicast address has global scope
+ *
+ * @since 1.4
+ */
+ public boolean isMCGlobal ()
+ {
+ if (!isMulticastAddress ())
+ return false;
+
+ return (ipaddress [1] & 0x0F) == 0xE;
+ }
+
+ /**
+ * Utility routine to check if the multicast address has node scope
+ *
+ * @since 1.4
+ */
+ public boolean isMCNodeLocal ()
+ {
+ if (!isMulticastAddress ())
+ return false;
+
+ return (ipaddress [1] & 0x0F) == 0x1;
+ }
+
+ /**
+ * Utility routine to check if the multicast address has link scope
+ *
+ * @since 1.4
+ */
+ public boolean isMCLinkLocal ()
+ {
+ if (!isMulticastAddress ())
+ return false;
+
+ return (ipaddress [1] & 0x0F) == 0x2;
+ }
+
+ /**
+ * Utility routine to check if the multicast address has site scope
+ *
+ * @since 1.4
+ */
+ public boolean isMCSiteLocal ()
+ {
+ if (!isMulticastAddress ())
+ return false;
+
+ return (ipaddress [1] & 0x0F) == 0x5;
+ }
+
+ /**
+ * Utility routine to check if the multicast address has organization scope
+ *
+ * @since 1.4
+ */
+ public boolean isMCOrgLocal ()
+ {
+ if (!isMulticastAddress ())
+ return false;
+
+ return (ipaddress [1] & 0x0F) == 0x8;
+ }
+
+ /**
+ * Returns the raw IP address of this InetAddress object. The result is in
+ * network byte order: the highest order byte of the address is i
+ * n getAddress()[0]
+ */
+ public byte[] getAddress ()
+ {
+ return ipaddress;
+ }
+
+ /**
+ * Returns the IP address string in textual presentation
+ */
+ public String getHostAddress ()
+ {
+ StringBuffer sbuf = new StringBuffer (40);
+
+ for (int i = 0; i < 16; i += 2)
+ {
+ int x = ((ipaddress [i] & 0xFF) << 8) | (ipaddress [i + 1] & 0xFF);
+ boolean empty = sbuf.length () == 0;
+
+ if (empty)
+ {
+ if (i > 0)
+ sbuf.append ("::");
+ }
+ else
+ sbuf.append (':');
+
+ if (x != 0 || i >= 14)
+ sbuf.append (Integer.toHexString (x));
+ }
+
+ return sbuf.toString ();
+ }
+
+ /**
+ * Returns a hashcode for this IP address
+ */
+ public int hashCode ()
+ {
+ return super.hashCode ();
+ }
+
+ /**
+ * Compares this object against the specified object
+ */
+ public boolean equals (Object obj)
+ {
+ if (obj == null || ! (obj instanceof Inet6Address))
+ return false;
+
+ Inet6Address tmp = (Inet6Address) obj;
+
+ return super.equals (tmp)
+ && this.ipaddress == tmp.ipaddress;
+ }
+
+ /**
+ * Utility routine to check if the InetAddress is an
+ * IPv4 compatible IPv6 address
+ *
+ * @since 1.4
+ */
+ public boolean isIPv4CompatibleAddress ()
+ {
+ if (ipaddress [0] != 0x00 || ipaddress [1] != 0x00 ||
+ ipaddress [2] != 0x00 || ipaddress [3] != 0x00 ||
+ ipaddress [4] != 0x00 || ipaddress [5] != 0x00 ||
+ ipaddress [6] != 0x00 || ipaddress [7] != 0x00 ||
+ ipaddress [8] != 0x00 || ipaddress [9] != 0x00 ||
+ ipaddress [10] != 0x00 || ipaddress [11] != 0x00)
+ return false;
+
+ return true;
+ }
+}