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coreutils/tests/cp/file-perm-race
Jim Meyering 68561594ca tests: use "Exit $fail", not (exit $fail); exit $fail
* tests/test-lib.sh (Exit): New function by Ralf Wildenhues in automake
http://git.sv.gnu.org/gitweb/?p=automake.git;a=commitdiff;h=20594c08f63
* tests/**: Convert all uses:

This restrictive change converted the vast majority:

  git grep -l '^(exit \$fail); exit \$fail$' \
    | xargs perl -pi -e 's/'^\(exit \$fail\); exit \$fail$/Exit \$fail/'

And this did the rest, plus a few undesirable ones, so I manually
backed out the changes to ChangeLog-* and build-aux/check.mk:

  git grep -l -E '\(exit [^)]+\); exit ' \
    | xargs perl -pi -e 's/\(exit (.+?)\); exit \1/Exit $1/'
2008-09-10 13:20:10 +02:00

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#!/bin/sh
# Make sure cp -p isn't too generous with file permissions.
# Copyright (C) 2006-2008 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/>.
if test "$VERBOSE" = yes; then
set -x
cp --version
fi
. $srcdir/test-lib.sh
umask 022
mkfifo fifo ||
skip_test_ "fifos not supported"
# Copy a fifo's contents. That way, we can examine the
# destination permissions before they're finalized.
cp -p --copy-contents fifo fifo-copy &
cp_pid=$!
(
# 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=0;;
*)
fail=1;;
esac
wait $cp_pid || fail=1
Exit $fail