From e1e331508a62bcd02e7a26960ca7ea51f97724c8 Mon Sep 17 00:00:00 2001
From: Magnus Olsen <magnus@greatlord.com>
Date: Mon, 29 May 2006 12:43:01 +0000
Subject: [PATCH] Hidden bug in our tcp/ip stack, at shutdown api the so can be
 NULL if that happen, ReactOS will bsod the tcp/ip stack. Arty can u look if
 this changes is right if not revert it. This changes was tested in fireforx
 at http://www.mirc.com/get.html and try d/l mirc. This patch do not make
 firefox bsod, instead it genrate a long crash log at serial debug.

svn path=/trunk/; revision=22106
---
 reactos/lib/drivers/oskittcp/oskittcp/uipc_socket.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/reactos/lib/drivers/oskittcp/oskittcp/uipc_socket.c b/reactos/lib/drivers/oskittcp/oskittcp/uipc_socket.c
index e95192231d7..05997ff3a64 100644
--- a/reactos/lib/drivers/oskittcp/oskittcp/uipc_socket.c
+++ b/reactos/lib/drivers/oskittcp/oskittcp/uipc_socket.c
@@ -827,6 +827,19 @@ soshutdown(so, how)
 	register struct socket *so;
 	register int how;
 {
+    if (so == NULL)
+    {
+     	register struct protosw *pr = NULL;
+
+	how++;
+	if (how & FREAD)
+		sorflush(so);
+	if (how & FWRITE)
+		return ((*pr->pr_usrreq)(so, PRU_SHUTDOWN,
+		    (struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0));
+	return (0);
+    }
+    
 	register struct protosw *pr = so->so_proto;
 
 	how++;