/*
* Copyright 2004-2006 Luke Quinane and Daniel Frampton
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
using System;
using NDns.Message;
namespace NDns.Message.Records{
/// <summary>
/// A DNS Canonical NAME record.
/// </summary>
public class CNameRecord : Record
{
/// <summary>
/// The canonical name for this record.
/// </summary>
protected string cName;
/// <summary>
/// Creates a CName record from the given domain.
/// </summary>
/// <param name="cName">The string of the canonical name.</param>
public CNameRecord(string cName)
{
this.cName = cName;
}
/// <summary>
/// Creates a CName record from the given byte data.
/// </summary>
/// <param name="data">The data to create the CName record from.</param>
/// <param name="start">The position to start reading the byte array from.</param>
/// <param name="length">The number of bytes read from the byte array.</param>
/// <param name="coder">The coder to use when parsing the data.</param>
public CNameRecord(byte[] data, ushort start, out ushort length, DomainCoder coder)
{
// get the answer name
ushort position = start;
ushort dataLength;
this.cName = coder.DecodeDomain(data, position, out dataLength);
position += dataLength;
this.type = QType.CNAME;
length = (ushort) (position - start);
}
/// <summary>
/// Returns the canonical name for this record.
/// </summary>
public string CName
{
get
{
return this.cName;
}
}
/// <summary>
/// The data associated with this record as a user readable string.
/// </summary>
public override string Data {
get {
return this.cName;
}
}
}
}
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