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#!/bin/sh
# Ensure that touch -h works.
# Copyright (C) 2009-2015 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/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ touch
ln -s nowhere dangling || framework_failure_
touch file || framework_failure_
ln -s file link || framework_failure_
# These first tests should work on every platform.
# -h does not create files, but it warns. Use -c to silence warning.
touch -h no-file 2> err && fail=1
test -s err || fail=1
touch -h -c no-file 2> err || fail=1
compare /dev/null err || fail=1
# -h works on regular files
touch -h file || fail=1
# -h coupled with -r uses timestamp of the symlink, not the referent.
touch -h -r dangling file || fail=1
test -f nowhere && fail=1
# The remaining tests of -h require kernel support for changing symlink times.
grep '^#define HAVE_UTIMENSAT 1' "$CONFIG_HEADER" > /dev/null ||
grep '^#define HAVE_LUTIMES 1' "$CONFIG_HEADER" > /dev/null ||
skip_ 'this system lacks the utimensat function'
# Changing time of dangling symlink is okay.
# Skip the test if this fails, but the error text corresponds to
# ENOSYS (possible with old kernel but new glibc).
touch -h dangling 2> err
case $? in
0) test -f nowhere && fail=1
compare /dev/null err || fail=1;;
1) grep 'Function not implemented' err \
&& skip_ 'this system lacks the utimensat function'
fail=1;;
*) fail=1;;
esac
# Change the mtime of a symlink.
touch -m -h -d 2009-10-10 link || fail=1
case $(stat --format=%y link) in
2009-10-10*) ;;
*) fail=1 ;;
esac
case $(stat --format=%y file) in
2009-10-10*) fail=1;;
esac
# Test interactions with -.
touch -h - > file || fail=1
# If >&- works, test "touch -ch -" etc.
# >&- apparently does not work in HP-UX 11.23.
# This test is ineffective unless /dev/stdout also works.
# If stdout is open, it is not a symlink.
if env test -w /dev/stdout >/dev/null &&
env test ! -w /dev/stdout >&-; then
touch -h - >&- && fail=1
touch -h -c - >&- || fail=1
fi
Exit $fail
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