mirror of
https://git.savannah.gnu.org/git/coreutils.git
synced 2025-09-11 12:50:47 +03:00
28b176085f
Update to latest gnulib with new copyright year. Run "make update-copyright" and then... * gnulib: Update included in this commit as copyright years are the only change from the previous gnulib commit. * tests/init.sh: Sync with gnulib to pick up copyright year. * bootstrap: Likewise. * tests/sample-test: Adjust to use the single most recent year.
49 lines
1.5 KiB
Bash
Executable File
49 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
|
|
# Ensure that tail seeks to the end of a device
|
|
|
|
# Copyright (C) 2017-2025 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_ tail
|
|
|
|
# need write access to local device
|
|
# (even though we don't actually write anything)
|
|
require_root_
|
|
require_local_dir_
|
|
|
|
get_device_size() {
|
|
BLOCKDEV=blockdev
|
|
$BLOCKDEV -V >/dev/null 2>&1 || BLOCKDEV=/sbin/blockdev
|
|
$BLOCKDEV --getsize64 "$1"
|
|
}
|
|
|
|
# Get path to device the current dir is on.
|
|
# Note df can only get fs size, not device size.
|
|
device=$(df --output=source . | tail -n1) || framework_failure_
|
|
|
|
dev_size=$(get_device_size "$device") ||
|
|
skip_ "failed to determine size of $device"
|
|
|
|
tail_offset=$(expr $dev_size - 1023) ||
|
|
skip_ "failed to determine tail offset"
|
|
|
|
timeout 10 tail -c 1024 "$device" > end1 || fail=1
|
|
timeout 10 tail -c +"$tail_offset" "$device" > end2 || fail=1
|
|
test $(wc -c < end1) = 1024 || fail=1
|
|
cmp end1 end2 || fail=1
|
|
|
|
Exit $fail
|