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
021package 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 */
058public class A6RecordEncoder
059{
060}