[389-devel] Please review: [Bug 616608] SIGBUS in RDN index reads on platforms with strict alignments

[Noriko Hosoi]

https://bugzilla.redhat.com/show_bug.cgi?id=616608

https://bugzilla.redhat.com/attachment.cgi?id=434877&action=diff

https://bugzilla.redhat.com/attachment.cgi?id=434877&action=edit

Fix description:
Use the marshall/unmarshall technique for the entryrdn index data.
Introduced sizeushort_internal_to_stored/sizeushort_stored_to_internal
for the size data to store in 2 bytes.

Entryrdn related functions in the dbscan utility are also modified
to support marshalled data.

Reviewed by ulf.weltman(a)hp.com and fixed bugs found by him.

Updated the design doc:
http://directory.fedoraproject.org/wiki/Subtree_Rename#Entryrdn_index