blob: fbb1bd1e1c574feb533790dda3afdd2cfe2a552d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
#!/bin/sh
# test diagnostics are printed immediately when seeking beyond device.
# Copyright (C) 2008-2018 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) ||
skip_ "failed to adjust device size $dev_size"
timeout 10 dd bs=1 skip=$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
|
