From b7b56f24dd304cb4dfd288e46f98b1edb7eb3a9c Mon Sep 17 00:00:00 2001
From: Ingo Schwarze <schwarze@openbsd.org>
Date: Sat, 7 Feb 2015 06:28:08 +0000
Subject: be more careful about argc == 0

---
 demandoc.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'demandoc.c')

diff --git a/demandoc.c b/demandoc.c
index 37043e30..d201be6c 100644
--- a/demandoc.c
+++ b/demandoc.c
@@ -1,4 +1,4 @@
-/*	$Id: demandoc.c,v 1.13 2015/01/15 04:26:39 schwarze Exp $ */
+/*	$Id: demandoc.c,v 1.14 2015/02/07 06:28:08 schwarze Exp $ */
 /*
  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -47,8 +47,9 @@ main(int argc, char *argv[])
 	int		 ch, fd, i, list;
 	extern int	 optind;
 
-	progname = strrchr(argv[0], '/');
-	if (progname == NULL)
+	if (argc < 1)
+		progname = "demandoc";
+	else if ((progname = strrchr(argv[0], '/')) == NULL)
 		progname = argv[0];
 	else
 		++progname;
@@ -81,7 +82,7 @@ main(int argc, char *argv[])
 	mp = mparse_alloc(MPARSE_SO, MANDOCLEVEL_BADARG, NULL, mchars, NULL);
 	assert(mp);
 
-	if (0 == argc)
+	if (argc < 1)
 		pmandoc(mp, STDIN_FILENO, "<stdin>", list);
 
 	for (i = 0; i < argc; i++) {
-- 
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