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coreutils/tests/dd/skip-seek-past-dev
Pádraig Brady 437671accc tests: exclude some tests when running on NFS
All tests currently pass on NFS on Linux kernel 2.6.22 at least,
but some fail on 2.6.9, so we exclude those here.

* tests/init.cfg (is_local_dir_): A new function
returning if the specified directory is on a local file system.
(require_local_dir_): A new function to skip tests
if the current directory is not on a local file system.
* tests/cp/existing-perm-race: Skip if non local.
* tests/cp/file-perm-race: Likewise.
* tests/cp/parent-perm: Likewise.
* tests/cp/parent-perm-race: Likewise.
* tests/cp/preserve-2: Likewise.
* tests/mv/part-symlink: Likewise.
* tests/du/basic: Use refactored function.
* tests/install/basic-1: Likewise.
* tests/mkdir/p-3: Likewise.
* tests/dd/skip-seek-past-dev: Likewise.
* tests/du/slink: Likewise.  Remove redundant test
for NFS file system.
* tests/misc/join: s/local/locale/.
2010-09-07 10:49:55 +01:00

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#!/bin/sh
# test diagnostics are printed immediately when seeking beyond device.
# Copyright (C) 2008-2010 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/>.
if test "$VERBOSE" = yes; then
set -x
dd --version
fi
. $srcdir/test-lib.sh
# 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 -P . | tail -n1 | cut -d' ' -f1) || framework_failure
dev_size=$(get_device_size "$device") ||
skip_test_ "failed to determine size of $device"
# Don't use shell arithmetic as older versions of dash use longs
DEV_OFLOW=$(expr $dev_size + 1)
timeout 10 dd bs=1 skip=$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