From 3686645e775dafd7feb8452cc3e9d76445180237 Mon Sep 17 00:00:00 2001
From: Ray Lai <ray@openbsd.org>
Date: Tue, 2 Jun 2009 11:14:08 +0000
Subject: Don't dereference NULL if buf winds up being empty. Can't happen
 right now according to NicM but better safe than sorry.

OK nicm@
---
 attributes.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'attributes.c')

diff --git a/attributes.c b/attributes.c
index cfe46ecd..36b34ff1 100644
--- a/attributes.c
+++ b/attributes.c
@@ -45,7 +45,8 @@ attributes_tostring(u_char ch)
 		strlcat(buf, "hidden,", sizeof (buf));
 	if (ch & GRID_ATTR_ITALICS)
 		strlcat(buf, "italics,", sizeof (buf));
-	*(strrchr(buf, ',')) = '\0';
+	if (*buf)
+		*(strrchr(buf, ',')) = '\0';
 
 	return (buf);
 }
-- 
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