From 98ef317b6c85c2d077b7bd6d44bf106597f84069 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E5=9B=BD=E4=BC=9F?= <366193849@qq.com>
Date: Wed, 18 Aug 2021 09:00:42 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=AF=E6=8C=810=E7=AB=AF=E5=8F=A3?=
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---
 FastGithub.DomainResolve/DomainResolver.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/FastGithub.DomainResolve/DomainResolver.cs b/FastGithub.DomainResolve/DomainResolver.cs
index bfac187..de20ce3 100644
--- a/FastGithub.DomainResolve/DomainResolver.cs
+++ b/FastGithub.DomainResolve/DomainResolver.cs
@@ -130,6 +130,11 @@ namespace FastGithub.DomainResolve
                 return default;
             }
 
+            if (port <= 0)
+            {
+                return addresses.FirstOrDefault();
+            }
+
             var tasks = addresses.Select(address => this.IsAvailableAsync(address, port, cancellationToken));
             var fastTask = await Task.WhenAny(tasks);
             return await fastTask;