From 247d1e4ddb4be12072a202a35c43dfbdc96cbeb0 Mon Sep 17 00:00:00 2001
From: Purva Vasudeo <puvasude@microsoft.com>
Date: Thu, 9 Jul 2020 10:45:23 -0700
Subject: [PATCH] Clean old handle before creating a new one

Clean old handle before creating a new one
---
 src/iisnode/cprotocolbridge.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/iisnode/cprotocolbridge.cpp b/src/iisnode/cprotocolbridge.cpp
index ec7b2a75..996af08f 100644
--- a/src/iisnode/cprotocolbridge.cpp
+++ b/src/iisnode/cprotocolbridge.cpp
@@ -626,6 +626,12 @@ void WINAPI CProtocolBridge::CreateNamedPipeConnection(DWORD error, DWORD bytesT
 
     if (INVALID_HANDLE_VALUE == pipe)
     {
+        // Clean up old pipe handle, otherwise there will be a handle leak
+        HANDLE oldPipe = ctx->GetPipe();
+        if (oldPipe != NULL && oldPipe != INVALID_HANDLE_VALUE) {
+            CloseHandle(oldPipe);
+        }
+		
         ErrorIf(INVALID_HANDLE_VALUE == (pipe = CreateFile(
             ctx->GetNodeProcess()->GetNamedPipeName(),
             GENERIC_READ | GENERIC_WRITE,