From de51002fc72043cb7dc9f09fa53a5f95d4648e74 Mon Sep 17 00:00:00 2001
From: Jun-ichiro itojun Hagino <itojun@FreeBSD.org>
Date: Fri, 29 Aug 1997 00:44:34 +0000
Subject: [PATCH] more sanity check before making output. bark when sed fails.

Submitted by:	wosch@apfel.de
---
 usr.bin/shar/shar.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/usr.bin/shar/shar.sh b/usr.bin/shar/shar.sh
index f38d92b6904..bf541c0d0c9 100644
--- a/usr.bin/shar/shar.sh
+++ b/usr.bin/shar/shar.sh
@@ -41,8 +41,8 @@ fi
 
 for i
 do
-	if [ ! -e $i ]; then
-		echo "$i does not exist" 1>&2
+	if [ ! \( -d $i -o -r $i \) ]; then
+		echo "$i inaccessible or not exist" 1>&2
 		exit 66		# EX_NOINPUT
 	fi
 done
@@ -72,7 +72,7 @@ do
 	else
 		echo "echo x - $i"
 		echo "sed 's/^X//' >$i << 'END-of-$i'"
-		sed 's/^/X/' $i
+		sed 's/^/X/' $i || exit
 		echo "END-of-$i"
 	fi
 done