From 6737b893e3198eb8acb1647742d46a6c58cf3c30 Mon Sep 17 00:00:00 2001
From: Ingo Schwarze <schwarze@openbsd.org>
Date: Tue, 9 Aug 2016 15:09:27 +0000
Subject: fix printf("%s", NULL); found while investigating an unrelated bug
 report from jsg@

---
 main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'main.c')

diff --git a/main.c b/main.c
index 56bfd635..e240719b 100644
--- a/main.c
+++ b/main.c
@@ -1,4 +1,4 @@
-/*	$Id: main.c,v 1.274 2016/07/19 21:31:55 schwarze Exp $ */
+/*	$Id: main.c,v 1.275 2016/08/09 15:09:27 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2012, 2014-2016 Ingo Schwarze <schwarze@openbsd.org>
@@ -985,7 +985,8 @@ mmsg(enum mandocerr t, enum mandoclevel lvl,
 {
 	const char	*mparse_msg;
 
-	fprintf(stderr, "%s: %s:", getprogname(), file);
+	fprintf(stderr, "%s: %s:", getprogname(),
+	    file == NULL ? "<stdin>" : file);
 
 	if (line)
 		fprintf(stderr, "%d:%d:", line, col + 1);
-- 
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