From d73701340eb50e72b4114d885444ced87e430cf2 Mon Sep 17 00:00:00 2001
From: xljiulang <366193849@qq.com>
Date: Sat, 14 Aug 2021 23:07:35 +0800
Subject: [PATCH] =?UTF-8?q?=E6=81=A2=E5=A4=8DNetsh=EF=BC=8C=E5=9B=A0?=
 =?UTF-8?q?=E4=B8=BAWMI=E5=BC=95=E8=B5=B7=E5=8F=91=E5=B8=83=E6=97=B6?=
 =?UTF-8?q?=E8=87=B4=E5=91=BD=E9=94=99=E8=AF=AF(https://github.com/dotnet/?=
 =?UTF-8?q?runtime/issues/57406)?=
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---
 FastGithub.Dns/FastGithub.Dns.csproj |  1 -
 FastGithub.Dns/SystemDnsUtil.cs      | 31 +++++++++++++++-------------
 2 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/FastGithub.Dns/FastGithub.Dns.csproj b/FastGithub.Dns/FastGithub.Dns.csproj
index 2300b43..ea1d4dc 100644
--- a/FastGithub.Dns/FastGithub.Dns.csproj
+++ b/FastGithub.Dns/FastGithub.Dns.csproj
@@ -7,7 +7,6 @@
 	<ItemGroup>
 		<PackageReference Include="DNS" Version="6.1.0" />
 		<PackageReference Include="Microsoft.Extensions.Hosting" Version="5.0.0" />
-		<PackageReference Include="System.Management" Version="5.0.0" />
 	</ItemGroup>
 
 	<ItemGroup>
diff --git a/FastGithub.Dns/SystemDnsUtil.cs b/FastGithub.Dns/SystemDnsUtil.cs
index 3595100..67a5cc2 100644
--- a/FastGithub.Dns/SystemDnsUtil.cs
+++ b/FastGithub.Dns/SystemDnsUtil.cs
@@ -1,8 +1,8 @@
 using FastGithub.Configuration;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
-using System.Management;
 using System.Net;
 using System.Net.NetworkInformation;
 using System.Runtime.InteropServices;
@@ -94,23 +94,26 @@ namespace FastGithub.Dns
         /// </summary>
         /// <param name="interface"></param>
         /// <param name="nameServers"></param>
-        /// <returns></returns>
-        private static bool SetNameServers(NetworkInterface @interface, IEnumerable<IPAddress> nameServers)
+        private static void SetNameServers(NetworkInterface @interface, IEnumerable<IPAddress> nameServers)
         {
-            var index = @interface.GetIPProperties().GetIPv4Properties().Index;
-            using var wmi = new ManagementClass("Win32_NetworkAdapterConfiguration");
-            foreach (ManagementObject adapter in wmi.GetInstances())
+            Netsh($@"interface ipv4 delete dns ""{@interface.Name}"" all");
+            foreach (var address in nameServers)
             {
-                if ((int)(uint)adapter["InterfaceIndex"] == index)
-                {
-                    var inParams = adapter.GetMethodParameters("SetDNSServerSearchOrder");
-                    inParams["DNSServerSearchOrder"] = nameServers.Select(item => item.ToString()).ToArray();
-                    adapter.InvokeMethod("SetDNSServerSearchOrder", inParams, null);
-                    return true;
-                }
+                Netsh($@"interface ipv4 add dns ""{@interface.Name}"" {address} validate=no");
             }
 
-            return false;
+            static void Netsh(string arguments)
+            {
+                var netsh = new ProcessStartInfo
+                {
+                    FileName = "netsh.exe",
+                    Arguments = arguments,
+                    CreateNoWindow = true,
+                    UseShellExecute = false,
+                    WindowStyle = ProcessWindowStyle.Hidden
+                };
+                Process.Start(netsh)?.WaitForExit();
+            }
         }
     }
 }
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