$OpenBSD: patch-src_net_server_c,v 1.1 2015/02/24 23:40:02 bentley Exp $
--- src/net_server.c.orig	Tue Feb 24 00:09:57 2015
+++ src/net_server.c	Tue Feb 24 00:10:04 2015
@@ -514,7 +514,7 @@ static void NET_SV_AdvanceWindow(void)
         
         // Advance the window
 
-        memcpy(recvwindow, recvwindow + 1, sizeof(*recvwindow) * (BACKUPTICS - 1));
+        memmove(recvwindow, recvwindow + 1, sizeof(*recvwindow) * (BACKUPTICS - 1));
         memset(&recvwindow[BACKUPTICS-1], 0, sizeof(*recvwindow));
         ++recvwindow_start;
 
