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#!/bin/sh
# Make sure cp -p isn't too generous with file permissions.
# Copyright (C) 2006-2022 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
# cp -p gives ENOTSUP on NFS on Linux 2.6.9 at least
require_local_dir_
umask 022
mkfifo_or_skip_ fifo
# Terminate any background cp process
cleanup_() { kill $pid 2>/dev/null && wait $pid; }
# Copy a fifo's contents. That way, we can examine the
# destination permissions before they're finalized.
cp -p --copy-contents fifo fifo-copy & pid=$!
(
# 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 $pid || fail=1
Exit $fail
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