Bug #44069 ndb_restore crash from bus error when restoring packed data

Description:
ndb_restore run on big endian machine get a bus error when trying to swap the byte order of data read from backup file.

The files have bee previously recorded on little endian machine.

How to repeat:
 ./ndb_restore  --no-defaults -b 1 -n 2 -r ~/magnus/mysql-5.1.32-ndb-7.0.5-pb558/mysql-test/std_data/ndb_backup51_undolog_le

t@1 (l@1) terminated by signal BUS (invalid address alignment)
Current function is BackupFile::Twiddle
   77       attr_data->u_int32_value[0] = Twiddle32(attr_data->u_int32_value[0]);
(dbx) p attr_desc
attr_desc = 0x10041f1e8
(dbx) p attr_desc
attr_desc = 0x10041f1e8
(dbx) p *attr_desc
*attr_desc = {
    size           = 8U
    arraySize      = 4U
    attrId         = 4U
    m_column       = 0x1004a5d38
    m_nullBitIndex = 0
    convertFunc    = (nil)
    parameter      = (nil)
}
(dbx) where
current thread: t@1
=>[1] BackupFile::Twiddle(this = 0xffffffff7fffe138, attr_desc = 0x10041f1e8, attr_data = 0x100412048, arraySize = 0), line 77 in "Restore.cpp"
  [2] RestoreDataIterator::readTupleData_packed(this = 0xffffffff7fffe138, buf_ptr = 0x10051de10, dataLength = 9U), line 919 in "Restore.cpp"
  [3] RestoreDataIterator::getNextTuple(this = 0xffffffff7fffe138, res = 1), line 782 in "Restore.cpp"
  [4] main(argc = 1, argv = 0x1004bc150), line 1179 in "restore_main.cpp"

A patch for this bug has been committed. After review, it may
be pushed to the relevant source trees for release in the next
version. You can access the patch from:

  http://lists.mysql.com/commits/71654

A patch for this bug has been committed. After review, it may
be pushed to the relevant source trees for release in the next
version. You can access the patch from:

  http://lists.mysql.com/commits/71772

A patch for this bug has been committed. After review, it may
be pushed to the relevant source trees for release in the next
version. You can access the patch from:

  http://lists.mysql.com/commits/71797

Pushed into 5.1.32-ndb-7.0.5 (revid:magnus.blaudd@sun.com-20090409152826-rfdukhsmek5cez8h) (version source revid:magnus.blaudd@sun.com-20090409152826-rfdukhsmek5cez8h) (merge vers: 5.1.32-ndb-7.0.5) (pib:6)

Pushed into 5.1.32-ndb-6.3.25 (revid:magnus.blaudd@sun.com-20090409154847-gaqvdnjj5tm5ua5h) (version source revid:magnus.blaudd@sun.com-20090409154847-gaqvdnjj5tm5ua5h) (merge vers: 5.1.32-ndb-6.3.25) (pib:6)

A patch for this bug has been committed. After review, it may
be pushed to the relevant source trees for release in the next
version. You can access the patch from:

  http://lists.mysql.com/commits/72035

Pushed into 5.1.32-ndb-7.0.6 (revid:magnus.blaudd@sun.com-20090414171116-ctlsz5z1oxeagkc8) (version source revid:magnus.blaudd@sun.com-20090414171116-ctlsz5z1oxeagkc8) (merge vers: 5.1.32-ndb-7.0.6) (pib:6)

Documented in the NDB-6.3.25 and 7.0.6 changelogs as follows:

        ndb_restore failed when trying to restore data on a big-endian
        machine from a backup file created on a little-endian machine.