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.decoder; 022 023 024 import java.io.IOException; 025 import java.util.HashMap; 026 import java.util.Map; 027 028 import org.apache.directory.server.dns.store.DnsAttribute; 029 import org.apache.mina.core.buffer.IoBuffer; 030 031 032 /** 033 * A decoder for NS records. NS records are encoded as per RFC-1035: 034 * 035 * <pre> 036 * 3.3.11. NS RDATA format 037 * 038 * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ 039 * / NSDNAME / 040 * / / 041 * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ 042 * 043 * where: 044 * 045 * NSDNAME 046 * A <domain-name> which specifies a host which should be authoritative for 047 * the specified class and domain. 048 * </pre> 049 * 050 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 051 * @version $Rev$, $Date$ 052 */ 053 public class NameServerRecordDecoder implements RecordDecoder 054 { 055 public Map<String, Object> decode( IoBuffer byteBuffer, short length ) throws IOException 056 { 057 Map<String, Object> map = new HashMap<String, Object>(); 058 map.put( DnsAttribute.DOMAIN_NAME, DnsMessageDecoder.getDomainName( byteBuffer ) ); 059 return map; 060 } 061 }