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#!/bin/sh
# make sure chgrp is reasonable
# Copyright (C) 2000-2012 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/>.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
print_ver_ chgrp
require_membership_in_two_groups_
set _ $groups; shift
g1=$1
g2=$2
mkdir d
touch f f2 d/f3
chgrp $g1 f || fail=1
chgrp $g2 f || fail=1
chgrp $g2 f2 || fail=1
chgrp -R $g1 d || fail=1
d_files='d d/f3'
chgrp $g1 f || fail=1 ; test `stat --p=%g f` = $g1 || fail=1
chgrp $g2 f || fail=1 ; test `stat --p=%g f` = $g2 || fail=1
chgrp $g2 f || fail=1 ; test `stat --p=%g f` = $g2 || fail=1
chgrp '' f || fail=1 ; test `stat --p=%g f` = $g2 || fail=1
chgrp $g1 f || fail=1 ; test `stat --p=%g f` = $g1 || fail=1
chgrp $g1 f || fail=1 ; test `stat --p=%g f` = $g1 || fail=1
chgrp --reference=f2 f ; test `stat --p=%g f` = $g2 || fail=1
chgrp -R $g2 d ||fail=1; test `stat --p=%g: $d_files` = "$g2:$g2:" || fail=1
chgrp -R $g1 d ||fail=1; test `stat --p=%g: $d_files` = "$g1:$g1:" || fail=1
chgrp -R $g2 d ||fail=1; test `stat --p=%g: $d_files` = "$g2:$g2:" || fail=1
chgrp -R $g1 d ||fail=1; test `stat --p=%g: $d_files` = "$g1:$g1:" || fail=1
chgrp $g2 d ||fail=1; test `stat --p=%g: $d_files` = "$g2:$g1:" || fail=1
rm -f f
touch f
ln -s f symlink
chgrp $g1 f
test `stat --printf=%g f` = $g1 || fail=1
# This should not change the group of f.
chgrp -h $g2 symlink
test `stat --printf=%g f` = $g1 || fail=1
# Don't fail if chgrp failed to set the group of a symlink.
# Some systems don't support that.
test `stat --printf=%g symlink` = $g2 ||
echo 'info: failed to set group of symlink' 1>&2
chown --from=:$g1 :$g2 f; test `stat --printf=%g f` = $g2 || fail=1
# This *should* change the group of f.
# Though note that the diagnostic is misleading in that
# it says the `group of `symlink'' has been changed.
chgrp $g1 symlink; test `stat --printf=%g f` = $g1 || fail=1
chown --from=:$g1 :$g2 f; test `stat --printf=%g f` = $g2 || fail=1
# If -R is specified without -H or L, -h is assumed.
chgrp -h $g1 f symlink; test `stat --printf=%g symlink` = $g1 || fail=1
chgrp -R $g2 symlink
chown --from=:$g1 :$g2 f; test `stat --printf=%g f` = $g2 || fail=1
# Make sure we can change the group of inaccessible files.
chmod a-r f
chown --from=:$g2 :$g1 f; test `stat --printf=%g f` = $g1 || fail=1
chmod 0 f
chown --from=:$g1 :$g2 f; test `stat --printf=%g f` = $g2 || fail=1
# chown() must not be optimized away even when
# the file's owner and group already have the desired value.
rm -f f g
touch f g
chgrp $g1 f g
chgrp $g2 g
sleep 1
chgrp $g1 f
# The following no-change chgrp command is supposed to update f's ctime,
# but on OpenBSD and Darwin 7.9.0-8.11.1 (aka MacOS X 10.3.9 - 10.4.11)
# it appears to be a no-op for some file system types (at least NFS) so g's
# ctime is more recent. This is not a big deal;
# this test works fine when the files are on a local file system (/tmp).
chgrp '' f
test "`ls -C -c -t f g`" = 'f g' || \
{
case $host_triplet in
*openbsd*) echo ignoring known OpenBSD-specific chgrp failure 1>&2 ;;
*darwin7.9.*|*darwin8.*)
echo ignoring known MacOS X-specific chgrp failure 1>&2 ;;
*) echo $host_triplet: no-change chgrp failed to update ctime 1>&2;
fail=1 ;;
esac
}
Exit $fail
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