From e73af2841fe47b2962332ac05a3243c2505eef5e Mon Sep 17 00:00:00 2001
From: Shreyas Zare <shreyas@technitium.com>
Date: Sat, 8 May 2021 15:39:26 +0530
Subject: [PATCH] DnsResourceRecordExtension: added GetComments() and
 SetComments() extension methods.

---
 .../DnsResourceRecordExtension.cs             | 35 +++++++++++++++----
 1 file changed, 28 insertions(+), 7 deletions(-)

diff --git a/DnsServerCore/Dns/ResourceRecords/DnsResourceRecordExtension.cs b/DnsServerCore/Dns/ResourceRecords/DnsResourceRecordExtension.cs
index 12e05672..5f5ea6b7 100644
--- a/DnsServerCore/Dns/ResourceRecords/DnsResourceRecordExtension.cs
+++ b/DnsServerCore/Dns/ResourceRecords/DnsResourceRecordExtension.cs
@@ -1,6 +1,6 @@
 /*
 Technitium DNS Server
-Copyright (C) 2020  Shreyas Zare (shreyas@technitium.com)
+Copyright (C) 2021  Shreyas Zare (shreyas@technitium.com)
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -31,7 +31,7 @@ namespace DnsServerCore.Dns.ResourceRecords
         public static void SetGlueRecords(this DnsResourceRecord record, IReadOnlyList<DnsResourceRecord> glueRecords)
         {
             DnsResourceRecordInfo rrInfo = record.Tag as DnsResourceRecordInfo;
-            if (rrInfo == null)
+            if (rrInfo is null)
             {
                 rrInfo = new DnsResourceRecordInfo();
                 record.Tag = rrInfo;
@@ -127,11 +127,11 @@ namespace DnsServerCore.Dns.ResourceRecords
         public static IReadOnlyList<DnsResourceRecord> GetGlueRecords(this DnsResourceRecord record)
         {
             DnsResourceRecordInfo rrInfo = record.Tag as DnsResourceRecordInfo;
-            if (rrInfo == null)
+            if (rrInfo is null)
                 return Array.Empty<DnsResourceRecord>();
 
             IReadOnlyList<DnsResourceRecord> glueRecords = rrInfo.GlueRecords;
-            if (glueRecords == null)
+            if (glueRecords is null)
                 return Array.Empty<DnsResourceRecord>();
 
             return glueRecords;
@@ -153,7 +153,7 @@ namespace DnsServerCore.Dns.ResourceRecords
         public static bool IsDisabled(this DnsResourceRecord record)
         {
             DnsResourceRecordInfo rrInfo = record.Tag as DnsResourceRecordInfo;
-            if (rrInfo == null)
+            if (rrInfo is null)
                 return false;
 
             return rrInfo.Disabled;
@@ -162,7 +162,7 @@ namespace DnsServerCore.Dns.ResourceRecords
         public static void Disable(this DnsResourceRecord record)
         {
             DnsResourceRecordInfo rrInfo = record.Tag as DnsResourceRecordInfo;
-            if (rrInfo == null)
+            if (rrInfo is null)
             {
                 rrInfo = new DnsResourceRecordInfo();
                 record.Tag = rrInfo;
@@ -174,10 +174,31 @@ namespace DnsServerCore.Dns.ResourceRecords
         public static void Enable(this DnsResourceRecord record)
         {
             DnsResourceRecordInfo rrInfo = record.Tag as DnsResourceRecordInfo;
-            if (rrInfo == null)
+            if (rrInfo is null)
                 return;
 
             rrInfo.Disabled = false;
         }
+
+        public static string GetComments(this DnsResourceRecord record)
+        {
+            DnsResourceRecordInfo rrInfo = record.Tag as DnsResourceRecordInfo;
+            if (rrInfo is null)
+                return null;
+
+            return rrInfo.Comments;
+        }
+
+        public static void SetComments(this DnsResourceRecord record, string value)
+        {
+            DnsResourceRecordInfo rrInfo = record.Tag as DnsResourceRecordInfo;
+            if (rrInfo is null)
+            {
+                rrInfo = new DnsResourceRecordInfo();
+                record.Tag = rrInfo;
+            }
+
+            rrInfo.Comments = value;
+        }
     }
 }