1test_description="corrupt e2undo key data"
2if test -x $E2UNDO_EXE; then
3
4E2FSPROGS_UNDO_DIR=${TMPDIR:-/tmp}
5export E2FSPROGS_UNDO_DIR
6TDB_FILE=$E2FSPROGS_UNDO_DIR/tune2fs-$(basename $TMPFILE).e2undo
7OUT=$test_name.log
8rm -f $TDB_FILE >/dev/null 2>&1
9
10dd if=/dev/zero of=$TMPFILE bs=1k count=512 > /dev/null 2>&1
11
12echo mke2fs -q -F -o Linux -b 1024 $TMPFILE  > $OUT
13$MKE2FS -q -F -o Linux -I 128 -b 1024 $TMPFILE  >> $OUT 2>&1
14crc0=`$CRCSUM $TMPFILE`
15echo $CRCSUM before tune2fs $crc0 >> $OUT
16
17echo using tune2fs to test e2undo >> $OUT
18$TUNE2FS -I 256 $TMPFILE  >> $OUT 2>&1
19crc1=`$CRCSUM $TMPFILE`
20echo $CRCSUM after tune2fs $crc1 >> $OUT
21
22undo_blks=$(( $(stat -c '%s' $TDB_FILE 2>/dev/null || stat -f '%z' $TDB_FILE 2>/dev/null) / 1024 ))
23dd if=/dev/zero of=$TDB_FILE bs=1024 count=1 seek=$((undo_blks - 1)) conv=notrunc > /dev/null 2>&1
24
25$E2UNDO  $TDB_FILE $TMPFILE  >> $OUT 2>&1
26crc2=`$CRCSUM $TMPFILE`
27echo $CRCSUM after e2undo $crc2 >> $OUT
28
29if [ $crc0 != $crc1 ] && [ $crc1 = $crc2 ]; then
30	echo "$test_name: $test_description: ok"
31	touch $test_name.ok
32else
33	ln -f $test_name.log $test_name.failed
34	echo "$test_name: $test_description: failed"
35fi
36rm -f $TDB_FILE $TMPFILE
37fi
38