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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
commit758f820bcc0f68aeebac1717e537ca13a320b909 (patch)
tree48111ece75cf4f98316848b37a7e26356e00669e /tests/cp/file-perm-race.sh
parentInitial commit. (diff)
downloadcoreutils-758f820bcc0f68aeebac1717e537ca13a320b909.tar.xz
coreutils-758f820bcc0f68aeebac1717e537ca13a320b909.zip
Adding upstream version 9.1.upstream/9.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/cp/file-perm-race.sh')
-rwxr-xr-xtests/cp/file-perm-race.sh58
1 files changed, 58 insertions, 0 deletions
diff --git a/tests/cp/file-perm-race.sh b/tests/cp/file-perm-race.sh
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+++ b/tests/cp/file-perm-race.sh
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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