diff options
Diffstat (limited to 'tests/chown/preserve-root')
| -rwxr-xr-x | tests/chown/preserve-root | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/tests/chown/preserve-root b/tests/chown/preserve-root new file mode 100755 index 0000000..4f8fe4f --- /dev/null +++ b/tests/chown/preserve-root @@ -0,0 +1,88 @@ +#!/bin/sh +# Verify that --preserve-root works. + +# Copyright (C) 2006 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 2 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, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +# 02110-1301, USA. + +if test "$VERBOSE" = yes; then + set -x + chown --version +fi + +. $srcdir/../envvar-check +. $srcdir/../lang-default +PRIV_CHECK_ARG=require-non-root . $srcdir/../priv-check + +pwd=`pwd` +t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$ +trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0 +trap '(exit $?); exit $?' 1 2 13 15 + +framework_failure=0 +mkdir -p $tmp || framework_failure=1 +cd $tmp || framework_failure=1 +mkdir d && ln -s / d/slink-to-root + +if test $framework_failure = 1; then + echo "$0: failure in testing framework" 1>&2 + (exit 1); exit 1 +fi + +fail=0 + +# Even if --preserve-root were to malfunction, allowing the chown or +# chgrp to traverse through "/", since we're running as non-root, +# they would be very unlikely to cause any changes. +chown -R --preserve-root 0 / > out 2>&1 && fail=1 +chgrp -R --preserve-root 0 / >> out 2>&1 && fail=1 + +# Here, if --preserve-root were to malfunction, chmod could make changes, +# but only to files owned and unreadable by the user running this test, +# and then, only to make them readable by owner. +chmod -R --preserve-root u+r / >> out 2>&1 && fail=1 + +# With -RHh, --preserve-root should trigger nothing, +# since the symlink in question is not a command line argument. +# Contrary to the above commands, these two should succeed. +echo '==== test -RHh' >> out +chown -RHh --preserve-root `id -u` d >> out 2>&1 || fail=1 +chgrp -RHh --preserve-root `id -g` d >> out 2>&1 || fail=1 + +# These must fail. +echo '==== test -RLh' >> out +chown -RLh --preserve-root `id -u` d >> out 2>&1 && fail=1 +chgrp -RLh --preserve-root `id -g` d >> out 2>&1 && fail=1 + +cat <<\EOF > exp || fail=1 +chown: it is dangerous to operate recursively on `/' +chown: use --no-preserve-root to override this failsafe +chgrp: it is dangerous to operate recursively on `/' +chgrp: use --no-preserve-root to override this failsafe +chmod: it is dangerous to operate recursively on `/' +chmod: use --no-preserve-root to override this failsafe +==== test -RHh +==== test -RLh +chown: it is dangerous to operate recursively on `d/slink-to-root' (same as `/') +chown: use --no-preserve-root to override this failsafe +chgrp: it is dangerous to operate recursively on `d/slink-to-root' (same as `/') +chgrp: use --no-preserve-root to override this failsafe +EOF + +cmp out exp || fail=1 +test $fail = 1 && diff out exp 2> /dev/null + +(exit $fail); exit $fail |