From f2553e245e7765987beb0cc7b7b94406964604a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E5=9B=BD=E4=BC=9F?= <366193849@qq.com>
Date: Thu, 18 Nov 2021 14:16:28 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BD=BF=E7=94=A8timeToLive=E5=B9=B3=E5=9D=87?=
 =?UTF-8?q?=E5=80=BC?=
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---
 FastGithub.DomainResolve/DnsClient.cs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/FastGithub.DomainResolve/DnsClient.cs b/FastGithub.DomainResolve/DnsClient.cs
index 72177b7..63312ff 100644
--- a/FastGithub.DomainResolve/DnsClient.cs
+++ b/FastGithub.DomainResolve/DnsClient.cs
@@ -172,7 +172,13 @@ namespace FastGithub.DomainResolve
                 addresses = await OrderByConnectAnyAsync(addresses, endPoint.Port, cancellationToken);
             }
 
-            var timeToLive = addressRecords.First().TimeToLive;
+            var totalTimeToLive = TimeSpan.Zero;
+            foreach (var record in addressRecords)
+            {
+                totalTimeToLive = totalTimeToLive.Add(record.TimeToLive);
+            }
+
+            var timeToLive = totalTimeToLive / addressRecords.Count;
             if (timeToLive <= TimeSpan.Zero)
             {
                 timeToLive = this.defaultEmptyTtl;