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#!/bin/sh
# Test that 'chmod' does not skip calling chmod(2) even when the file mode bits
# are unchanged.
# Copyright (C) 2026 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ chmod stat
skip_if_root_
test "$(stat --format=%U /)" = 'root' || skip_ 'root does not own /'
for op in '+' '-' '='; do
returns_ 1 chmod "$op" / 2>err || fail=1
grep -F "chmod: changing permissions of '/'" err || { fail=1; cat err; }
done
Exit $fail
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