1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
#!/bin/sh
# Verify that cp -p preserves GID when it is possible.
# Copyright (C) 2007-2023 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 <https://www.gnu.org/licenses/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ cp
require_perl_
require_root_
# Some of the tests expect a umask that grants group and/or world read access.
working_umask_or_skip_
# Record primary group number, usually 0.
# This is the group ID used when cp (without -p) creates a new file.
primary_group_num=$(id -g)
create() {
echo "$1" > "$1" || exit 1
chown "+$2:+$3" "$1" || exit 1
}
t0() {
f=$1; shift
u=$1; shift
g=$1; shift
rm -f b || exit 1
"$@" "$f" b || exit 1
s=$(stat -c '%u %g' b)
if test "x$s" != "x$u $g"; then
# Allow the actual group to match that of the parent directory
# (it was set to 0 above).
if test "x$s" = "x$u $primary_group_num"; then
:
else
echo "$0: $* $f b: $u $g != $s" 1>&2
Exit 1
fi
fi
}
nameless_uid=$($PERL -le '
foreach my $i (1000..16*1024-1)
{
getpwuid $i or (print $i), exit
}
')
nameless_gid1=$($PERL -le '
foreach my $i (1000..16*1024)
{
getgrgid $i or (print $i), exit
}
')
nameless_gid2=$($PERL -le '
foreach my $i ('"$nameless_gid1"'+1..16*1024)
{
getgrgid $i or (print $i), exit
}
')
if test -z "$nameless_uid" \
|| test -z "$nameless_gid1" \
|| test -z "$nameless_gid2"; then
skip_ "couldn't find a nameless UID or GID"
fi
chown "+$nameless_uid:+0" .
create a0 0 0
create b0 "$nameless_uid" "$nameless_gid1"
create b1 "$nameless_uid" "$nameless_gid2"
create c0 0 "$nameless_gid1"
create c1 0 "$nameless_gid2"
t0 a0 0 0 cp
t0 b0 0 0 cp
t0 b1 0 0 cp
t0 c0 0 0 cp
t0 c1 0 0 cp
t0 a0 0 0 cp -p
t0 b0 "$nameless_uid" "$nameless_gid1" cp -p
t0 b1 "$nameless_uid" "$nameless_gid2" cp -p
t0 c0 0 "$nameless_gid1" cp -p
t0 c1 0 "$nameless_gid2" cp -p
# For the remaining tests, we need a cp binary that is accessible to a user
# with UID of $nameless_uid. The build directory may not be accessible,
# so create a temporary directory and copy cp into it, ensure that
# $nameless_uid can access it and then make that directory the search path.
tmp_path=
cleanup_() { rm -rf "$tmp_path"; }
# Cause mktemp to create a directory directly under /tmp.
# Setting TMPDIR explicitly is required here, in case $TMPDIR
# is not readable by our nameless IDs.
test -d /tmp && TMPDIR=/tmp
tmp_path=$(mktemp -d) || fail_ "failed to create temporary directory"
if test -x "$abs_path_dir_/coreutils" &&
{ test -L "$abs_path_dir_/cp" ||
test $(wc -l < "$abs_path_dir_/cp") = 1; } then
# if configured with --enable-single-binary we need to use the single binary
cp "$abs_path_dir_/coreutils" "$tmp_path/cp" || framework_failure_
else
cp "$abs_path_dir_/cp" "$tmp_path"
fi
chmod -R a+rx "$tmp_path"
t1() {
f=$1; shift
u=$1; shift
g=$1; shift
t0 "$f" "$u" "$g" \
chroot --skip-chdir \
--user=+$nameless_uid:+$nameless_gid1 \
--groups="+$nameless_gid1,+$nameless_gid2" \
/ env PATH="$tmp_path" "$@"
}
t1 a0 "$nameless_uid" "$nameless_gid1" cp
t1 b0 "$nameless_uid" "$nameless_gid1" cp
t1 b1 "$nameless_uid" "$nameless_gid1" cp
t1 c0 "$nameless_uid" "$nameless_gid1" cp
t1 c1 "$nameless_uid" "$nameless_gid1" cp
t1 a0 "$nameless_uid" "$nameless_gid1" cp -p
t1 b0 "$nameless_uid" "$nameless_gid1" cp -p
t1 b1 "$nameless_uid" "$nameless_gid2" cp -p
t1 c0 "$nameless_uid" "$nameless_gid1" cp -p
t1 c1 "$nameless_uid" "$nameless_gid2" cp -p
Exit $fail
|
