add null check

clickviewapp · Jan 22, 2024 · d74e503 · d74e503
1 parent d94f732
commit d74e503
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/Primitives/Primitives/src/Extensions/IpAddressExtensions.cs b/src/Primitives/Primitives/src/Extensions/IpAddressExtensions.cs
@@ -19,6 +19,9 @@ public static class IpAddressExtensions
     /// <example><code>bool isPrivate = IPAddress.Parse("127.0.0.1").IsPrivate();</code></example>
     public static bool IsPrivate(this IPAddress ip)
     {
+        if (ip is null)
+            throw new ArgumentNullException(nameof(ip));
+
         // Map back to IPv4 if mapped to IPv6, for example "::ffff:1.2.3.4" to "1.2.3.4".
         if (ip.IsIPv4MappedToIPv6)
             ip = ip.MapToIPv4();