From 94faa268b73400dce4a43c540d9bb42e71198c87 Mon Sep 17 00:00:00 2001
From: Shreyas Zare <shreyas@technitium.com>
Date: Sun, 6 Sep 2020 16:52:02 +0530
Subject: [PATCH] WebService: opening file in shared mode for concurrent
 access.

---
 DnsServerCore/WebService.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/DnsServerCore/WebService.cs b/DnsServerCore/WebService.cs
index ef39cdfc..c7f3bbc3 100644
--- a/DnsServerCore/WebService.cs
+++ b/DnsServerCore/WebService.cs
@@ -567,7 +567,7 @@ namespace DnsServerCore
 
         private static async Task SendFileAsync(HttpListenerResponse response, string filePath)
         {
-            using (FileStream fS = new FileStream(filePath, FileMode.Open, FileAccess.Read))
+            using (FileStream fS = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
             {
                 response.ContentType = WebUtilities.GetContentType(filePath).MediaType;
                 response.ContentLength64 = fS.Length;