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#!/bin/sh
# Compare actual numbers from du, assuming block size matches mine.
# Copyright (C) 2003, 2006-2008 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 <http://www.gnu.org/licenses/>.
if test "$VERBOSE" = yes; then
set -x
du --version
fi
. $srcdir/test-lib.sh
mkdir -p a/b d d/sub || framework_failure
# Ensure that these files contain more than 64 bytes, so that we don't
# immediately disqualify file systems (e.g., NetApp) on which smaller
# files take up zero disk blocks.
printf '%*s' 257 make-sure-the-file-is-non-empty > a/b/F || framework_failure
printf %4096s x > d/1
cp d/1 d/sub/2
fail=0
B=`stat --format=%B a/b/F`
du --block-size=$B -a a > out || fail=1
echo === >> out
du --block-size=$B -a -S a >> out || fail=1
echo === >> out
du --block-size=$B -s a >> out || fail=1
f=`stat --format=%b a/b/F`
b=`stat --format=%b a/b`
a=`stat --format=%b a`
bf=`expr $b + $f`
tot=`expr $bf + $a`
cat <<EOF | sed 's/ *#.*//' > exp
$f a/b/F
$bf a/b
$tot a
===
$f a/b/F # size of file, a/b/F
$bf a/b # size of dir entry, a/b, + size of file, a/b/F
$a a # size of dir entry, a
===
$tot a
EOF
compare out exp || fail=1
# Perform this test only if "." is on a local file system.
# Otherwise, it would fail e.g., on an NFS-mounted Solaris ZFS file system.
if df --local . >/dev/null 2>&1; then
rm -f out exp
du --block-size=$B -a d | sort -r -k2,2 > out || fail=1
echo === >> out
du --block-size=$B -S d | sort -r -k2,2 >> out || fail=1
t2=`stat --format=%b d/sub/2`
ts=`stat --format=%b d/sub`
t1=`stat --format=%b d/1`
td=`stat --format=%b d`
tot=`expr $t1 + $t2 + $ts + $td`
d1=`expr $td + $t1`
s2=`expr $ts + $t2`
cat <<EOF | sed 's/ *#.*//' > exp
$t2 d/sub/2
$s2 d/sub
$t1 d/1
$tot d
===
$s2 d/sub
$d1 d # d + d/1; don't count the dir. entry for d/sub
EOF
compare out exp || fail=1
fi
Exit $fail
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