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 * 5.2 NXT RDATA Format 026 * 027 * The RDATA for an NXT RR consists simply of a domain name followed by 028 * a bit map. 029 * 030 * The type number for the NXT RR is 30. 031 * 032 * 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 033 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 034 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 035 * | next domain name / 036 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 037 * | type bit map / 038 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 039 * 040 * The NXT RR type bit map is one bit per RR type present for the owner 041 * name similar to the WKS socket bit map. The first bit represents RR 042 * type zero (an illegal type which should not be present.) A one bit 043 * indicates that at least one RR of that type is present for the owner 044 * name. A zero indicates that no such RR is present. All bits not 045 * specified because they are beyond the end of the bit map are assumed 046 * to be zero. Note that bit 30, for NXT, will always be on so the 047 * minimum bit map length is actually four octets. The NXT bit map 048 * should be printed as a list of RR type mnemonics or decimal numbers 049 * similar to the WKS RR. 050 * 051 * The domain name may be compressed with standard DNS name compression 052 * when being transmitted over the network. The size of the bit map can 053 * be inferred from the RDLENGTH and the length of the next domain name. 054 * 055 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 056 */ 057public class NextNameRecordEncoder 058{ 059}