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DNS.NET Resolver (C#)

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11 Mar 2013CPOL6 min read 654.8K   18.6K   280  
A full implementation of a reusable DNS resolver component and a Dig.Net example application.
using System;
/* http://tools.ietf.org/rfc/rfc1183.txt

2.2. The Responsible Person RR

   The method uses a new RR type with mnemonic RP and type code of 17
   (decimal).

   RP has the following format:

   <owner> <ttl> <class> RP <mbox-dname> <txt-dname>

   Both RDATA fields are required in all RP RRs.

   The first field, <mbox-dname>, is a domain name that specifies the
   mailbox for the responsible person.  Its format in master files uses
   the DNS convention for mailbox encoding, identical to that used for
   the RNAME mailbox field in the SOA RR.  The root domain name (just
   ".") may be specified for <mbox-dname> to indicate that no mailbox is
   available.

   The second field, <txt-dname>, is a domain name for which TXT RR's
   exist.  A subsequent query can be performed to retrieve the
   associated TXT resource records at <txt-dname>.  This provides a
   level of indirection so that the entity can be referred to from
   multiple places in the DNS.  The root domain name (just ".") may be
   specified for <txt-dname> to indicate that the TXT_DNAME is absent,
   and no associated TXT RR exists.

 */

namespace Heijden.DNS
{
	public class RecordRP : Record
	{
		public string MBOXDNAME;
		public string TXTDNAME;

		public RecordRP(RecordReader rr)
		{
			//MBOXDNAME = rr.ReadString();
			MBOXDNAME = rr.ReadDomainName();
			TXTDNAME = rr.ReadDomainName();
		}

		public override string ToString()
		{
			return string.Format("{0} {1}",
				MBOXDNAME,
				TXTDNAME);
		}

	}
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Retired Van der Heijden Holding BV
Netherlands Netherlands
I'm Alphons van der Heijden, living in Lelystad, Netherlands, Europa, Earth. And currently I'm retiring from hard working ( ;- ), owning my own company. Because I'm full of energy, and a little to young to relax ...., I don't sit down, but create and recreate software solutions, that I like. Reinventing the wheel is my second nature. My interest is in the area of Internet technologies, .NET etc. I was there in 1992 when Mosaic came out, and from that point, my life changed dramatically, and so did the world, in fact. (Y)

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