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#!/bin/sh
# exercise cp's short-read failure when operating on >4KB files in /proc
# Copyright (C) 2009-2023 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
proc_large=/proc/cpuinfo # usually > 4KiB
test -r $proc_large || skip_ "your system lacks $proc_large"
# Before coreutils-7.3, cp would copy less than 4KiB of this file.
# Skip this test when run under QEmu emulation where emulated /proc files
# have unstable inode numbers.
cp $proc_large 1 2>err \
|| { fail=1
grep 'replaced while being copied' err \
&& skip_ "File $proc_large is being replaced while being copied"; }
cat $proc_large > 2 || fail=1
# adjust varying parts
del_varying='/MHz/d; /[Bb][Oo][Gg][Oo][Mm][Ii][Pp][Ss]/d;'
sed "$del_varying" 1 > proc.cp || framework_failure_
sed "$del_varying" 2 > proc.cat || framework_failure_
compare proc.cp proc.cat || fail=1
Exit $fail
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