From 4260e713b7e2a1e451ebfe72e5e76d20b75f07c7 Mon Sep 17 00:00:00 2001
From: nia <nia@NetBSD.org>
Date: Wed, 29 Apr 2020 21:00:42 +0000
Subject: unstr: Check that the input filename fits in the buffer.

---
 fortune/unstr/unstr.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fortune/unstr/unstr.c b/fortune/unstr/unstr.c
index 6f5e8241..cadd35f4 100644
--- a/fortune/unstr/unstr.c
+++ b/fortune/unstr/unstr.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: unstr.c,v 1.14 2012/06/19 05:46:08 dholland Exp $	*/
+/*	$NetBSD: unstr.c,v 1.15 2020/04/29 21:00:42 nia Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -42,7 +42,7 @@ __COPYRIGHT("@(#) Copyright (c) 1991, 1993\
 #if 0
 static char sccsid[] = "@(#)unstr.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: unstr.c,v 1.14 2012/06/19 05:46:08 dholland Exp $");
+__RCSID("$NetBSD: unstr.c,v 1.15 2020/04/29 21:00:42 nia Exp $");
 #endif
 #endif /* not lint */
 
@@ -114,7 +114,7 @@ main(int ac __unused, char **av)
 void
 getargs(char *av[])
 {
-	if (!*++av) {
+	if (!*++av || (strlen(*av) + sizeof(".dat")) > sizeof(Datafile)) {
 		(void) fprintf(stderr, "usage: unstr datafile\n");
 		exit(1);
 	}
-- 
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