qemu/tests/qemu-iotests/159
Reda Sallahi 86ce1f6e2b qemu-img: add the 'dd' subcommand
This patch adds a basic dd subcommand analogous to dd(1) to qemu-img.

For the start, this implements the bs, if, of and count options and requires
both if and of to be specified (no stdin/stdout if not specified) and doesn't
support tty, pipes, etc.

The image format must be specified with -O for the output if the raw format
is not the intended one.

Two tests are added to test qemu-img dd.

Signed-off-by: Reda Sallahi <fullmanet@gmail.com>
Message-id: 20160810024312.14544-1-fullmanet@gmail.com
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[mreitz: Moved test 158 to 170]
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 with different block sizes
#
# 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"
}
trap "_cleanup; exit \$status" 0 1 2 3 15
. ./common.rc
. ./common.filter
. ./common.pattern
_supported_fmt generic
_supported_proto file
_supported_os Linux
TEST_SIZES="5 512 1024 1999 1K 64K 1M"
for bs in $TEST_SIZES; do
echo
echo "== Creating image =="
size=1M
_make_test_img $size
_check_test_img
$QEMU_IO -c "write -P 0xa 0 $size" "$TEST_IMG" | _filter_qemu_io
echo
echo "== Converting the image with dd with a block size of $bs =="
$QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" bs=$bs -O "$IMGFMT"
TEST_IMG="$TEST_IMG.out" _check_test_img
echo
echo "== Compare the images with qemu-img compare =="
$QEMU_IMG compare "$TEST_IMG" "$TEST_IMG.out"
done
echo
echo "*** done"
rm -f "$seq.full"
status=0