Please review: [Bug 578296] Attribute type entrydn needs to be added when subtree rename switch is on.

[Noriko Hosoi]

https://bugzilla.redhat.com/show_bug.cgi?id=578296

https://bugzilla.redhat.com/attachment.cgi?id=426726&action=diff

https://bugzilla.redhat.com/attachment.cgi?id=426726&action=edit

Files:
  ldap/servers/slapd/back-ldbm/back-ldbm.h
  ldap/servers/slapd/back-ldbm/id2entry.c
  ldap/servers/slapd/back-ldbm/index.c
  ldap/servers/slapd/back-ldbm/ldbm_search.c
  ldap/servers/slapd/back-ldbm/proto-back-ldbm.h

Description:
Attribute type entrydn needs to be added when subtree rename switch is on.
Also, it should be allowed to use entrydn in the filter.

Change Description:
1) ldbm_back_next_search_entry_ext (ldbm_search.c)
    When getting an entry from ID using id2entry_ext, pass a flag
    ID2ENTRY_ADD_ENTRYDN to add entrydn to the entry.
2) id2entry_ext (id2entry.c)
    Added id2entry_ext to handle the flag ID2ENTRY_ADD_ENTRYDN.
    If ID2ENTRY_ADD_ENTRYDN is set in the flags variable and
    entryrdn switch is enabled, entrydn is added to the entry.
3) index_read_ext (index.c)
    If entryrdn switch is on and the attribute type is entrydn and
    the search type is equality, then call entryrdn_index_read
    to get the ID directly.

Thanks,
--noriko