done

Netch/3rd/DnsClient.NET/Protocol/MrRecord.cs

@@ -0,0 +1,55 @@
+using System;
+
+namespace DnsClient.Protocol
+{
+    /*
+    https://tools.ietf.org/html/rfc1035#section-3.3.8:
+    3.3.8. MR RDATA format (EXPERIMENTAL)
+
+        +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+        /                   NEWNAME                     /
+        /                                               /
+        +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+
+    where:
+
+    NEWNAME         A <domain-name> which specifies a mailbox which is the
+                    proper rename of the specified mailbox.
+
+    MR records cause no additional section processing.  The main use for MR
+    is as a forwarding entry for a user who has moved to a different
+    mailbox.
+     */
+
+    /// <summary>
+    /// A <see cref="DnsResourceRecord"/> represending a mailbox rename domain name.
+    /// </summary>
+    /// <seealso href="https://tools.ietf.org/html/rfc1035#section-3.3.8">RFC 1035</seealso>
+    public class MrRecord : DnsResourceRecord
+    {
+        /// <summary>
+        /// Gets the domain name which specifies a mailbox which is the proper rename of the specified mailbox.
+        /// </summary>
+        /// <value>
+        /// The domain name.
+        /// </value>
+        public DnsString NewName { get; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MrRecord"/> class.
+        /// </summary>
+        /// <param name="info">The information.</param>
+        /// <param name="name">The domain name.</param>
+        /// <exception cref="System.ArgumentNullException">If <paramref name="name"/> or <paramref name="info"/> is null.</exception>
+        public MrRecord(ResourceRecordInfo info, DnsString name)
+            : base(info)
+        {
+            NewName = name ?? throw new ArgumentNullException(nameof(name));
+        }
+
+        private protected override string RecordToString()
+        {
+            return NewName.Value;
+        }
+    }
+}