1#!/bin/sh
2# Compare actual numbers from du, assuming block size matches mine.
3
4# Copyright (C) 2003-2023 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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ du
21
22mkdir -p a/b d d/sub || framework_failure_
23
24# Ensure that these files contain more than 64 bytes, so that we don't
25# immediately disqualify file systems (e.g., NetApp) on which smaller
26# files take up zero file system blocks.
27printf '%*s' 257 make-sure-the-file-is-non-empty > a/b/F || framework_failure_
28printf %4096s x > d/1
29cp d/1 d/sub/2
30
31
32B=$(stat --format=%B a/b/F)
33
34du --block-size=$B -a a > out || fail=1
35echo === >> out
36du --block-size=$B -a -S a >> out || fail=1
37echo === >> out
38du --block-size=$B -s a >> out || fail=1
39
40f=$(stat --format=%b a/b/F)
41b=$(stat --format=%b a/b)
42a=$(stat --format=%b a)
43bf=$(expr $b + $f)
44tot=$(expr $bf + $a)
45
46cat <<EOF | sed 's/ *#.*//' > exp
47$f	a/b/F
48$bf	a/b
49$tot	a
50===
51$f	a/b/F   # size of file, a/b/F
52$bf	a/b     # size of dir entry, a/b, + size of file, a/b/F
53$a	a       # size of dir entry, a
54===
55$tot	a
56EOF
57
58compare exp out || fail=1
59
60# Perform this test only if "." is on a local file system.
61# Otherwise, it would fail e.g., on an NFS-mounted Solaris ZFS file system.
62# Also skip local ZFS as that was seen to fail intermittently
63# (perhaps due to async compression affecting allocations)
64if is_local_dir_ . && ! df -T -t zfs .; then
65  rm -f out exp
66  du --block-size=$B -a d | sort -r -k2,2 > out || fail=1
67  echo === >> out
68  du --block-size=$B -S d | sort -r -k2,2 >> out || fail=1
69
70  t2=$(stat --format=%b d/sub/2)
71  ts=$(stat --format=%b d/sub)
72  t1=$(stat --format=%b d/1)
73  td=$(stat --format=%b d)
74  tot=$(expr $t1 + $t2 + $ts + $td)
75  d1=$(expr $td + $t1)
76  s2=$(expr $ts + $t2)
77
78  cat <<EOF | sed 's/ *#.*//' > exp
79$t2	d/sub/2
80$s2	d/sub
81$t1	d/1
82$tot	d
83===
84$s2	d/sub
85$d1	d           # d + d/1; don't count the dir. entry for d/sub
86EOF
87
88  compare exp out || fail=1
89fi
90
91Exit $fail
92