- djm@cvs.openbsd.org 2014/04/29 13:10:30
     [clientloop.c serverloop.c]
     bz#1818 - don't send channel success/failre replies on channels that
     have sent a close already; analysis and patch from Simon Tatham;
     ok markus@
diff --git a/clientloop.c b/clientloop.c
index 59ad3a2..203151e 100644
--- a/clientloop.c
+++ b/clientloop.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: clientloop.c,v 1.258 2014/02/02 03:44:31 djm Exp $ */
+/* $OpenBSD: clientloop.c,v 1.259 2014/04/29 13:10:30 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -2054,7 +2054,7 @@
 		}
 		packet_check_eom();
 	}
-	if (reply && c != NULL) {
+	if (reply && c != NULL && !(c->flags & CHAN_CLOSE_SENT)) {
 		packet_start(success ?
 		    SSH2_MSG_CHANNEL_SUCCESS : SSH2_MSG_CHANNEL_FAILURE);
 		packet_put_int(c->remote_id);