From e6b080f3a27c56f233170a65580fb5d2f5a9841c Mon Sep 17 00:00:00 2001
From: Ingo Schwarze <schwarze@openbsd.org>
Date: Mon, 15 Dec 2014 17:30:30 +0000
Subject: Catch localtime() failure for additional safety; patch from Jan Stary
 <hans at stare dot cz> some time ago.

---
 mandoc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mandoc.c b/mandoc.c
index f74e32a7..3ae01d66 100644
--- a/mandoc.c
+++ b/mandoc.c
@@ -480,6 +480,8 @@ time2a(time_t t)
 	int		 isz;
 
 	tm = localtime(&t);
+	if (tm == NULL)
+		return(NULL);
 
 	/*
 	 * Reserve space:
-- 
cgit