1#!/bin/sh
2# Ensure that du does not rely on narrow types like size_t for
3# file sizes or sums.
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_ du
22require_sparse_support_
23
24# timeout to avoid hang on GNU/Hurd from 2019
25timeout 10 dd bs=1 seek=8G of=big < /dev/null 2> /dev/null
26if test $? != 0; then
27  skip_ 'cannot create a file large enough for this test; possibly
28because file offsets are only 32 bits on this file system'
29fi
30
31# FIXME: this should be a test of dd.
32# On some systems (at least linux-2.4.18 + NFS to Solaris system)
33# the 'dd' command above mistakenly creates a file of length '0', yet
34# doesn't fail.  The root of that failure is that the ftruncate call
35# returns zero but doesn't do its job.  Detect this failure.
36set x $(ls -gG big)
37size=$4
38if test "$size" = 0; then
39  skip_ "cannot create a file large enough for this test
40possibly because this system's NFS support is buggy
41Consider rerunning this test on a different file system."
42fi
43
44
45# This would print '0	big' with coreutils-4.5.8.
46du -ab big > out || fail=1
47
48cat <<\EOF > exp
498589934592	big
50EOF
51
52compare exp out || fail=1
53
54Exit $fail
55