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9302e863aa
This avoids a possible division by zero. Convert s->tracks to unsigned as well because it feels better than surviving just because the results of calculations with s->tracks are converted to unsigned anyway. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
77 lines
2.1 KiB
Bash
Executable File
77 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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#
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# parallels format input validation tests
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#
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# Copyright (C) 2013 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=kwolf@redhat.com
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seq=`basename $0`
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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_supported_fmt parallels
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_supported_proto generic
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_supported_os Linux
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tracks_offset=$((0x1c))
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catalog_entries_offset=$((0x20))
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nb_sectors_offset=$((0x24))
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echo
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echo "== Read from a valid (enough) image =="
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_use_sample_img fake.parallels.bz2
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{ $QEMU_IO -c "read -P 0x11 0 64k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
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echo
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echo "== Negative catalog size =="
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_use_sample_img fake.parallels.bz2
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poke_file "$TEST_IMG" "$catalog_entries_offset" "\xff\xff\xff\xff"
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{ $QEMU_IO -c "read 0 512" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
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echo
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echo "== Overflow in catalog allocation =="
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_use_sample_img fake.parallels.bz2
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poke_file "$TEST_IMG" "$nb_sectors_offset" "\xff\xff\xff\xff"
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poke_file "$TEST_IMG" "$catalog_entries_offset" "\x01\x00\x00\x40"
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{ $QEMU_IO -c "read 64M 64M" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
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echo
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echo "== Zero sectors per track =="
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_use_sample_img fake.parallels.bz2
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poke_file "$TEST_IMG" "$tracks_offset" "\x00\x00\x00\x00"
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{ $QEMU_IO -c "read 0 512" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
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