From 7eb61845f0adab4db4776e45322f017211dea469 Mon Sep 17 00:00:00 2001
From: Theo de Raadt <deraadt@cvs.openbsd.org>
Date: Sat, 3 Jan 1998 22:32:58 +0000
Subject: ignore PRU_SHUTDOWN if socket is already shutdown

---
 sys/netinet/tcp_usrreq.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'sys/netinet')

diff --git a/sys/netinet/tcp_usrreq.c b/sys/netinet/tcp_usrreq.c
index 99c02ed1fa1..ea92e00c858 100644
--- a/sys/netinet/tcp_usrreq.c
+++ b/sys/netinet/tcp_usrreq.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: tcp_usrreq.c,v 1.12 1997/08/09 23:36:26 millert Exp $	*/
+/*	$OpenBSD: tcp_usrreq.c,v 1.13 1998/01/03 22:32:53 deraadt Exp $	*/
 /*	$NetBSD: tcp_usrreq.c,v 1.20 1996/02/13 23:44:16 christos Exp $	*/
 
 /*
@@ -257,6 +257,8 @@ tcp_usrreq(so, req, m, nam, control)
 	 * Mark the connection as being incapable of further output.
 	 */
 	case PRU_SHUTDOWN:
+		if (so->so_state & SS_CANTSENDMORE)
+			break;
 		socantsendmore(so);
 		tp = tcp_usrclosed(tp);
 		if (tp)
-- 
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