1#!/bin/sh
2# Make sure that touch gives reasonable diagnostics when applied
3# to an unwritable directory owned by some other user.
4
5# Copyright (C) 2003-2023 Free Software Foundation, Inc.
6
7# This program is free software: you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation, either version 3 of the License, or
10# (at your option) any later version.
11
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16
17# You should have received a copy of the GNU General Public License
18# along with this program.  If not, see <https://www.gnu.org/licenses/>.
19
20. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
21print_ver_ touch
22
23if env -- test -w /; then
24  skip_ you have write access to /.
25fi
26
27if env -- test -O / || env -- test -G /; then
28  skip_ "you own /."
29fi
30
31skip_if_root_
32
33
34# Before fileutils-4.1, we'd get the following misleading
35# diagnostic instead of '...: Permission denied'.
36# touch: creating '/': Is a directory
37touch / > out 2>&1 && fail=1
38
39# On SunOS4, EPERM is 'Not owner'.
40# On some *BSD systems it's 'Operation not permitted'.
41# On a system where root file system is mounted read-only
42# it's 'Read-only file system'.
43for msg in 'Not owner' 'Operation not permitted' 'Permission denied' \
44           'Read-only file system'; do
45  cat > exp <<EOF
46touch: setting times of '/': $msg
47EOF
48
49  cmp out exp > /dev/null 2>&1 && { match=1; break; }
50done
51test "$match" = 1 || fail=1
52
53test $fail = 1 && compare exp out
54
55Exit $fail
56