#!/bin/sh
# ensure that dd's oflag=direct works

# Copyright (C) 2009 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

truncate -s 8192 in || framework_failure
dd if=in oflag=direct of=out 2> /dev/null \
  || skip_test_ 'this file system lacks support for O_DIRECT'

truncate -s 511 short || framework_failure
truncate -s 8191 m1 || framework_failure
truncate -s 8193 p1 || framework_failure

fail=0
for i in short m1 p1; do
  rm -f out
  dd if=$i oflag=direct of=out || fail=1
done

Exit $fail