76 lines
3.5 KiB
C#
76 lines
3.5 KiB
C#
/**********************************************************************
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* Copyright (c) 2010, j. montgomery *
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* All rights reserved. *
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* *
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* Redistribution and use in source and binary forms, with or without *
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* modification, are permitted provided that the following conditions *
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* are met: *
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* *
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* + Redistributions of source code must retain the above copyright *
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* notice, this list of conditions and the following disclaimer. *
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* *
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* + Redistributions in binary form must reproduce the above copyright*
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* notice, this list of conditions and the following disclaimer *
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* in the documentation and/or other materials provided with the *
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* distribution. *
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* *
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* + Neither the name of j. montgomery's employer nor the names of *
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* its contributors may be used to endorse or promote products *
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* derived from this software without specific prior written *
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* permission. *
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* *
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS*
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT *
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS *
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE *
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,*
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES *
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR *
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) *
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,*
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) *
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED*
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* OF THE POSSIBILITY OF SUCH DAMAGE. *
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**********************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO;
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using System.Net;
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namespace DnDns.Records
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{
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public sealed class MxRecord : DnsRecordBase
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{
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// For MX
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private short _preference;
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private string _mailExchange;
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public short Preference
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{
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get { return _preference; }
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}
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public string MailExchange
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{
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get { return _mailExchange; }
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}
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internal MxRecord(RecordHeader dnsHeader) : base(dnsHeader) { }
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public override void ParseRecord(ref MemoryStream ms)
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{
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// Preference is a function of MX records
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byte[] nsPreference = new byte[2];
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ms.Read(nsPreference, 0, 2);
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//_preference = (short)Tools.ByteToUInt(nsPreference);
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// TODO: Should this be a UShort instead of a short?
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_preference = IPAddress.NetworkToHostOrder(BitConverter.ToInt16(nsPreference, 0));
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// Parse Name
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_mailExchange = DnsRecordBase.ParseName(ref ms);
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_answer = "MX Preference: " + _preference + ", Mail Exchanger: " + _mailExchange;
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}
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}
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}
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