2 # Verify that --preserve-root works.
4 # Copyright (C) 2006-2017 Free Software Foundation, Inc.
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.
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.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 .
"${srcdir=.}/tests/init.sh"; path_prepend_ .
/src
23 mkdir d
&& ln -s / d
/slink-to-root
26 # Even if --preserve-root were to malfunction, allowing the chown or
27 # chgrp to traverse through "/", since we're running as non-root,
28 # they would be very unlikely to cause any changes.
29 chown
-R --preserve-root 0 / > out
2>&1 && fail
=1
30 chgrp
-R --preserve-root 0 / >> out
2>&1 && fail
=1
32 # Here, if --preserve-root were to malfunction, chmod could make changes,
33 # but only to files owned and unreadable by the user running this test,
34 # and then, only to make them readable by owner.
35 chmod -R --preserve-root u
+r
/ >> out
2>&1 && fail
=1
37 # With -RHh, --preserve-root should trigger nothing,
38 # since the symlink in question is not a command line argument.
39 # Contrary to the above commands, these two should succeed.
40 echo '==== test -RHh' >> out
41 chown
-RHh --preserve-root $
(id
-u) d
>> out
2>&1 || fail
=1
42 chgrp
-RHh --preserve-root $
(id
-g) d
>> out
2>&1 || fail
=1
45 echo '==== test -RLh' >> out
46 chown
-RLh --preserve-root $
(id
-u) d
>> out
2>&1 && fail
=1
47 chgrp
-RLh --preserve-root $
(id
-g) d
>> out
2>&1 && fail
=1
49 cat <<\EOF
> exp || fail
=1
50 chown
: it is dangerous to operate recursively on
'/'
51 chown
: use
--no-preserve-root to override this failsafe
52 chgrp
: it is dangerous to operate recursively on
'/'
53 chgrp
: use
--no-preserve-root to override this failsafe
54 chmod: it is dangerous to operate recursively on
'/'
55 chmod: use
--no-preserve-root to override this failsafe
58 chown
: it is dangerous to operate recursively on
'd/slink-to-root' (same as
'/')
59 chown
: use
--no-preserve-root to override this failsafe
60 chgrp
: it is dangerous to operate recursively on
'd/slink-to-root' (same as
'/')
61 chgrp
: use
--no-preserve-root to override this failsafe
64 compare exp out || fail
=1