xemu/tests/qemu-iotests/160
Reda Sallahi f7c1553388 qemu-img: add skip option to dd
This adds the skip option which allows qemu-img dd to skip a number of blocks
before copying the input.

A test case was added to test the skip option.

Signed-off-by: Reda Sallahi <fullmanet@gmail.com>
Message-id: 20160810141609.32727-1-fullmanet@gmail.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-09-20 22:10:57 +02:00

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#! /bin/bash
#
# qemu-img dd test for the skip option
#
# Copyright (C) 2016 Reda Sallahi
#
# 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 2 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/>.
#
owner=fullmanet@gmail.com
seq="$(basename $0)"
echo "QA output created by $seq"
here="$PWD"
status=1
_cleanup()
{
_cleanup_test_img
rm -f "$TEST_IMG.out" "$TEST_IMG.out.dd"
}
trap "_cleanup; exit \$status" 0 1 2 3 15
. ./common.rc
. ./common.filter
. ./common.pattern
_supported_fmt raw
_supported_proto file
_supported_os Linux
TEST_SKIP_BLOCKS="1 2 30 30K"
for skip in $TEST_SKIP_BLOCKS; do
echo
echo "== Creating image =="
size=1M
_make_test_img $size
_check_test_img
$QEMU_IO -c "write -P 0xa 24 512k" "$TEST_IMG" | _filter_qemu_io
echo
echo "== Converting the image with dd with skip=$skip =="
$QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" skip="$skip" -O "$IMGFMT" \
2> /dev/null
TEST_IMG="$TEST_IMG.out" _check_test_img
dd if="$TEST_IMG" of="$TEST_IMG.out.dd" skip="$skip" status=none
echo
echo "== Compare the images with qemu-img compare =="
$QEMU_IMG compare "$TEST_IMG.out.dd" "$TEST_IMG.out"
done
echo
echo "*** done"
rm -f "$seq.full"
status=0