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57 lines
1.6 KiB
Bash
Executable File
57 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# Make sure cp -p isn't too generous with file permissions.
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# Copyright (C) 2006-2012 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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. "${srcdir=.}/init.sh"; path_prepend_ ../src
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print_ver_ cp
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# cp -p gives ENOTSUP on NFS on Linux 2.6.9 at least
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require_local_dir_
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umask 022
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mkfifo_or_skip_ fifo
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# Copy a fifo's contents. That way, we can examine the
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# destination permissions before they're finalized.
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cp -p --copy-contents fifo fifo-copy &
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cp_pid=$!
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(
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# Now 'cp' is reading the fifo. Wait for the destination file to
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# be created, encouraging things along by echoing to the fifo.
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while test ! -f fifo-copy; do
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echo foo
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done
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# Check the permissions of the destination.
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ls -l fifo-copy >ls.out
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# Close the fifo so that "cp" can continue. But output first,
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# before exiting, otherwise some shells would optimize away the file
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# descriptor that holds the fifo open.
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echo foo
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) >fifo
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case `cat ls.out` in
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-???------*) ;;
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*) fail=1;;
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esac
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wait $cp_pid || fail=1
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Exit $fail
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