1#!/bin/sh
2# Ensure that even when run from an inaccessible directory, du can still
3# operate on accessible directories elsewhere.
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# Before the switch to an fts-based implementation in coreutils 5.0.92,
21# this test would fail.
22
23. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
24print_ver_ du
25
26# Skip this test if your system has neither the openat-style functions
27# nor /proc/self/fd support with which to emulate them.
28require_openat_support_
29
30skip_if_root_
31
32cwd=$(pwd)
33mkdir -p no-x a/b || framework_failure_
34cd no-x || framework_failure_
35chmod 0 . || framework_failure_
36
37
38du "$cwd/a" > /dev/null || fail=1
39
40Exit $fail
41