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 * Copyright (c) 2010, j. montgomery                                  *
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using System;
using System.Collections.Generic;
using System.Text;

namespace DnDns.Enums
{
    /// <summary>
    /// RFC 1035:
    /// 
    /// 3.2.4. CLASS values
    /// 
    /// CLASS fields appear in resource records.  The following CLASS mnemonics
    /// and values are defined:
    /// 
    /// IN              1 the Internet
    /// 
    /// CS              2 the CSNET class (Obsolete - used only for examples in
    ///                 some obsolete RFCs)
    /// 
    /// CH              3 the CHAOS class
    /// 
    /// HS              4 Hesiod [Dyer 87]
    /// 
    /// 3.2.5. QCLASS values
    /// 
    /// QCLASS fields appear in the question section of a query.  QCLASS values
    /// are a superset of CLASS values; every CLASS is a valid QCLASS.  In
    /// addition to CLASS values, the following QCLASSes are defined:
    /// 
    /// *               255 any class
    /// </summary>
    public enum NsClass : byte
    {
        /// <summary>
        /// Cookie??                - NOT IMPLEMENTED
        /// </summary>
        INVALID = 0,
        /// <summary>
        /// // Internet (inet), RFC 1035
        /// </summary>
        INET = 1,
		/// <summary>
        /// MIT Chaos-net, RFC 1035 - NOT IMPLEMENTED
		/// </summary>
        CHAOS = 3,
        /// <summary>
        /// MIT Hesiod, RFC 1035    - NOT IMPLEMENTED
        /// </summary>
        HS = 4,
        /// <summary>
        /// RFC 2136 - None
        /// prereq sections in update requests -- NOT IMPLEMENTED
        /// </summary>
        NONE = 254,
        /// <summary>
        /// Any QCLASS only, Wildcard match, RFC 1035   - IMPLEMENTED for INET only
        /// </summary>
        ANY = 255
    }
}