diff options
Diffstat (limited to 'tests/cp/file-perm-race.sh')
-rwxr-xr-x | tests/cp/file-perm-race.sh | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/tests/cp/file-perm-race.sh b/tests/cp/file-perm-race.sh new file mode 100755 index 000000000..fbc9a86eb --- /dev/null +++ b/tests/cp/file-perm-race.sh @@ -0,0 +1,56 @@ +#!/bin/sh +# Make sure cp -p isn't too generous with file permissions. + +# Copyright (C) 2006-2012 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/>. + +. "${srcdir=.}/init.sh"; path_prepend_ ../src +print_ver_ cp + +# cp -p gives ENOTSUP on NFS on Linux 2.6.9 at least +require_local_dir_ + +umask 022 +mkfifo_or_skip_ fifo + +# Copy a fifo's contents. That way, we can examine the +# destination permissions before they're finalized. +cp -p --copy-contents fifo fifo-copy & +cp_pid=$! + +( + # Now 'cp' is reading the fifo. Wait for the destination file to + # be created, encouraging things along by echoing to the fifo. + while test ! -f fifo-copy; do + echo foo + done + + # Check the permissions of the destination. + ls -l fifo-copy >ls.out + + # Close the fifo so that "cp" can continue. But output first, + # before exiting, otherwise some shells would optimize away the file + # descriptor that holds the fifo open. + echo foo +) >fifo + +case $(cat ls.out) in +-???------*) ;; +*) fail=1;; +esac + +wait $cp_pid || fail=1 + +Exit $fail |