001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    
021    package org.apache.directory.server.dns.io.encoder;
022    
023    
024    /**
025     * 3.1.1.  Format
026     * 
027     *    The RDATA portion of the A6 record contains two or three fields.
028     * 
029     *            +-----------+------------------+-------------------+
030     *            |Prefix len.|  Address suffix  |    Prefix name    |
031     *            | (1 octet) |  (0..16 octets)  |  (0..255 octets)  |
032     *            +-----------+------------------+-------------------+
033     * 
034     *    o  A prefix length, encoded as an eight-bit unsigned integer with
035     *       value between 0 and 128 inclusive.
036     * 
037     *    o  An IPv6 address suffix, encoded in network order (high-order octet
038     *       first).  There MUST be exactly enough octets in this field to
039     *       contain a number of bits equal to 128 minus prefix length, with 0
040     *       to 7 leading pad bits to make this field an integral number of
041     *       octets.  Pad bits, if present, MUST be set to zero when loading a
042     *       zone file and ignored (other than for SIG [DNSSEC] verification)
043     *       on reception.
044     * 
045     *    o  The name of the prefix, encoded as a domain name.  By the rules of
046     *       [DNSIS], this name MUST NOT be compressed.
047     * 
048     *    The domain name component SHALL NOT be present if the prefix length
049     *    is zero.  The address suffix component SHALL NOT be present if the
050     *    prefix length is 128.
051     * 
052     *    It is SUGGESTED that an A6 record intended for use as a prefix for
053     *    other A6 records have all the insignificant trailing bits in its
054     *    address suffix field set to zero.
055     * 
056     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
057     * @version $Rev: 501160 $, $Date: 2007-01-29 20:41:33 +0100 (Mon, 29 Jan 2007) $
058     */
059    public class A6RecordEncoder
060    {
061    }