1#!/bin/sh
2# Test functionality of --exact
3
4# Copyright (C) 2000-2023 Free Software Foundation, Inc.
5
6# This program is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15
16# You should have received a copy of the GNU General Public License
17# along with this program.  If not, see <https://www.gnu.org/licenses/>.
18
19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ shred
21
22
23# make sure that neither --exact nor --zero gobbles a command line argument
24for opt in --exact --zero; do
25  echo a > a || framework_failure_
26  echo bb > b || framework_failure_
27  echo ccc > c || framework_failure_
28
29  shred --remove $opt a b || fail=1
30  test -f a && fail=1
31  test -f b && fail=1
32
33  shred --remove $opt c || fail=1
34  test -f c && fail=1
35done
36
37
38# make sure direct I/O is handled appropriately at end of file
39# Create a 1MiB file as we'll probably not be using blocks larger than that
40# (i.e., we want to test failed writes not at the start).
41truncate -s1MiB file.slop || framework_failure_
42truncate -s+1 file.slop || framework_failure_
43shred --exact -n2 file.slop || fail=1
44
45# make sure direct I/O is handled appropriately at start of file
46truncate -s1 file.slop || framework_failure_
47shred --exact -n2 file.slop || fail=1
48
49Exit $fail
50