From 6cb0522ecbbf60872270ce8835fce2a9366534a2 Mon Sep 17 00:00:00 2001
From: Christian Beier <dontmind@freeshell.org>
Date: Tue, 21 Feb 2017 19:37:43 +0100
Subject: [PATCH] rfbInitServer: only init Winsock once

---
 libvncserver/main.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/libvncserver/main.c b/libvncserver/main.c
index 27b5437..95c3da5 100644
--- a/libvncserver/main.c
+++ b/libvncserver/main.c
@@ -1061,7 +1061,15 @@ void rfbInitServer(rfbScreenInfoPtr screen)
 {
 #ifdef WIN32
   WSADATA trash;
-  WSAStartup(MAKEWORD(2,2),&trash);
+  static rfbBool WSAinitted=FALSE;
+  if(!WSAinitted) {
+    int i=WSAStartup(MAKEWORD(2,0),&trash);
+    if(i!=0) {
+      rfbErr("Couldn't init Windows Sockets\n");
+      return 0;
+    }
+    WSAinitted=TRUE;
+  }
 #endif
   rfbInitSockets(screen);
   rfbHttpInitSockets(screen);