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#!/bin/bash
#
# Copyright (C) 2007 Karel Zak <kzak@redhat.com>
#
# This file is part of util-linux.
#
# This file 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 file 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.
#
TS_TOPDIR="${0%/*}/../.."
TS_DESC="fsck bad header"
. "$TS_TOPDIR"/functions.sh
ts_init "$*"
ts_check_test_command "$TS_CMD_MKCRAMFS"
ts_check_test_command "$TS_CMD_FSCKCRAMFS"
ts_check_prog "dd"
function num2binary()
{
local num=$1
local endian=$2
test "$num" -ge 0 -a "$num" -le 4294967295 || return 1
test "$endian" = "be" -o "$endian" = "le" || return 1
# how to do that easier?
if test "$endian" = "be"; then
echo -en "$(printf "%08x" "$1" | sed 's/\(..\)/\\x\1/g')"
else
echo -en "$(printf "%08x" "$1" | sed 's/^\(..\)\(..\)\(..\)\(..\)$/\\x\4\\x\3\\x\2\\x\1/')"
fi
}
function fsck_loop_sizes()
{
local endian=$1 # be, le
local seek=$2 # 4 for nopad, 516 for pad
shift 2 # the rest are sizes to loop over
for size in "$@"; do
ts_log_both "## size: $size"
cp -a "$IMAGE_FILE" "$IMAGE_FILE.tmp"
num2binary "$size" $endian |
dd of="$IMAGE_FILE.tmp" bs=1 seek="$seek" count=4 conv=notrunc &> /dev/null
$TS_CMD_FSCKCRAMFS "$IMAGE_FILE.tmp" >> $TS_OUTPUT 2>> $TS_ERRLOG
ts_log "ret: $?
"
done
rm -f "$IMAGE_FILE"
}
IMAGE_SOURCE="$TS_OUTDIR/${TS_TESTNAME}-data"
IMAGE_FILE="$TS_OUTDIR/${TS_TESTNAME}-cramfs.img"
mkdir -p "${IMAGE_SOURCE}/subdir" &> /dev/null
ts_init_subtest "nopad-4K-be"
$TS_CMD_MKCRAMFS -N big -b 4096 $IMAGE_SOURCE $IMAGE_FILE &> /dev/null
fsck_loop_sizes be 4 0 75 76 4095 4096 4097 4294967295
rm -f "$IMAGE_FILE"
ts_finalize_subtest
ts_init_subtest "nopad-4K-le"
$TS_CMD_MKCRAMFS -N little -b 4096 $IMAGE_SOURCE $IMAGE_FILE &> /dev/null
fsck_loop_sizes le 4 0 75 76 4095 4096 4097 4294967295
ts_finalize_subtest
ts_init_subtest "pad-4K-be"
$TS_CMD_MKCRAMFS -p -N big -b 4096 $IMAGE_SOURCE $IMAGE_FILE &> /dev/null
fsck_loop_sizes be 516 76 587 588 4095 4096 4097 4294967295
ts_finalize_subtest
ts_init_subtest "pad-4K-le"
$TS_CMD_MKCRAMFS -p -N little -b 4096 $IMAGE_SOURCE $IMAGE_FILE &> /dev/null
fsck_loop_sizes le 516 76 587 588 4095 4096 4097 4294967295
ts_finalize_subtest
ts_init_subtest "pad-64K-be"
$TS_CMD_MKCRAMFS -p -N big -b 65536 $IMAGE_SOURCE $IMAGE_FILE &> /dev/null
fsck_loop_sizes be 516 76 587 588 65535 65536 65537 4294967295
ts_finalize_subtest
ts_init_subtest "pad-64K-le"
$TS_CMD_MKCRAMFS -p -N little -b 65536 $IMAGE_SOURCE $IMAGE_FILE &> /dev/null
fsck_loop_sizes le 516 76 587 588 65535 65536 65537 4294967295
ts_finalize_subtest
rm -rf "$IMAGE_SOURCE" "$IMAGE_FILE.tmp"
ts_finalize
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