done

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

@@ -0,0 +1,52 @@
+using System;
+
+namespace DnsClient.Protocol
+{
+    /*
+    https://tools.ietf.org/html/rfc1035#section-3.3.3:
+    3.3.3. MB RDATA format (EXPERIMENTAL)
+
+        +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+        /                   MADNAME                     /
+        /                                               /
+        +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+
+    where:
+
+    MADNAME         A <domain-name> which specifies a host which has the
+                    specified mailbox.
+
+     */
+
+    /// <summary>
+    /// A <see cref="DnsResourceRecord"/> represending a domain name which specifies a host which has the specified mailbox.
+    /// </summary>
+    /// <seealso href="https://tools.ietf.org/html/rfc1035#section-3.3.3">RFC 1035</seealso>
+    public class MbRecord : DnsResourceRecord
+    {
+        /// <summary>
+        /// Gets the domain name which specifies a host which has the specified mailbox.
+        /// </summary>
+        /// <value>
+        /// The domain name.
+        /// </value>
+        public DnsString MadName { get; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MbRecord"/> class.
+        /// </summary>
+        /// <param name="info">The information.</param>
+        /// <param name="domainName">The domain name.</param>
+        /// <exception cref="System.ArgumentNullException">If <paramref name="domainName"/> or <paramref name="info"/> is null.</exception>
+        public MbRecord(ResourceRecordInfo info, DnsString domainName)
+            : base(info)
+        {
+            MadName = domainName ?? throw new ArgumentNullException(nameof(domainName));
+        }
+
+        private protected override string RecordToString()
+        {
+            return MadName.Value;
+        }
+    }
+}