aosp12/external/e2fsprogs/tests/u_not_undo/script

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test_description="e2undo a non-undo file"
if test -x $E2UNDO_EXE; then
TDB_FILE=${TMPDIR:-/tmp}/tune2fs-$(basename $TMPFILE).e2undo
OUT=$test_name.log
rm -f $TDB_FILE >/dev/null 2>&1
dd if=/dev/zero of=$TMPFILE bs=1k count=512 > /dev/null 2>&1
dd if=/dev/zero of=$TDB_FILE bs=1k count=512 > /dev/null 2>&1
crc0=`$CRCSUM $TMPFILE`
echo $CRCSUM before e2undo $crc0 > $OUT
od -tx1 -Ad -c < $TDB_FILE >> $OUT
$E2UNDO $TDB_FILE $TMPFILE >> $OUT 2>&1
crc3=`$CRCSUM $TMPFILE`
echo $CRCSUM after e2undo $crc3 >> $OUT
if [ $crc3 = $crc0 ]; then
echo "$test_name: $test_description: ok"
touch $test_name.ok
else
ln -f $test_name.log $test_name.failed
echo "$test_name: $test_description: failed"
fi
rm -f $TDB_FILE $TMPFILE
fi