58 lines
1.9 KiB
Bash
Executable file
58 lines
1.9 KiB
Bash
Executable file
#!/bin/sh
|
|
# test diagnostics are printed immediately when seeking beyond device.
|
|
|
|
# Copyright (C) 2008-2025 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_ dd
|
|
|
|
# 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 $device"
|
|
|
|
# Don't use shell arithmetic as older versions of dash use longs
|
|
DEV_OFLOW=$(expr $dev_size + 1) || framework_failure_
|
|
|
|
timeout 10 dd bs=1 skip=$DEV_OFLOW count=0 status=noxfer < "$device" 2> err
|
|
test "$?" = "1" || fail=1
|
|
echo "dd: 'standard input': cannot skip: Invalid argument
|
|
0+0 records in
|
|
0+0 records out" > err_ok || framework_failure_
|
|
compare err_ok err || fail=1
|
|
|
|
timeout 10 dd bs=1 seek=$DEV_OFLOW count=0 status=noxfer > "$device" 2> err
|
|
test "$?" = "1" || fail=1
|
|
echo "dd: 'standard output': cannot seek: Invalid argument
|
|
0+0 records in
|
|
0+0 records out" > err_ok || framework_failure_
|
|
compare err_ok err || fail=1
|
|
|
|
Exit $fail
|