From 4ed8efea38afb72dfb0028a4470698563a4176e0 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Sun, 29 Jul 2012 18:53:37 -0400
Subject: libventi: fix segfault in vtgetreq

Don't call vtlog() when _vtqrecv() returns
nil on queue hangup, as reported on
http://bitbucket.org/rsc/plan9port/issue/102/

R=rsc
http://codereview.appspot.com/6373046
---
 src/libventi/server.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libventi/server.c b/src/libventi/server.c
index d82be698..91752200 100644
--- a/src/libventi/server.c
+++ b/src/libventi/server.c
@@ -182,7 +182,8 @@ vtgetreq(VtSrv *srv)
 	VtReq *r;
 	
 	r = _vtqrecv(srv->q);
-	vtlog(VtServerLog, "<font size=-1>%T %s:</font> vtgetreq %F<br>\n", ((VtSconn*)r->sc)->c->addr, &r->tx);
+	if (r != nil)
+		vtlog(VtServerLog, "<font size=-1>%T %s:</font> vtgetreq %F<br>\n", ((VtSconn*)r->sc)->c->addr, &r->tx);
 	return r;
 }
 
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