1#!/bin/sh
2# Ensure that rm -f nonexistent-file-on-read-only-fs succeeds.
3
4# Copyright (C) 2009-2023 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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ rm
21require_root_
22
23cwd=$(pwd)
24cleanup_() { cd /; umount "$cwd/mnt"; }
25
26skip=0
27# Create a file system, then mount it.
28dd if=/dev/zero of=blob bs=8192 count=200 > /dev/null 2>&1 \
29                                             || skip=1
30mkdir mnt                                    || skip=1
31mkfs -t ext2 -F blob \
32  || skip_ "failed to create ext2 file system"
33
34mount -oloop blob mnt                        || skip=1
35echo test > mnt/f                            || skip=1
36test -s mnt/f                                || skip=1
37mount -o remount,loop,ro mnt                 || skip=1
38
39test $skip = 1 \
40  && skip_ "insufficient mount/ext2 support"
41
42# Applying rm -f to a nonexistent file on a read-only file system must succeed.
43rm -f mnt/no-such > out 2>&1 || fail=1
44# It must produce no diagnostic.
45compare /dev/null out || fail=1
46
47# However, trying to remove an existing file must fail.
48rm -f mnt/f > out 2>&1 && fail=1
49# with a diagnostic.
50compare /dev/null out && fail=1
51
52Exit $fail
53