creatorsName, modifiersName, createTimestamp, modifyTimestamp) when it adds
from ldif file. Month field in time format in entryCSN is changed to 1~12.

use ACL_AUTH for acl checks.

calling from other modules

- now all write operations appear to work correctly with PostgeSQL 7.0
- all write operations have been made transactional (atomic writes to
  entries are committed separately only in case of complete^1 success
  while all other operations are rolled-back by default)
- more cleanup and handling of exceptional conditions

TODO:
- deen to check with different databases and more up to date versions
  of both unixODBC and PostgreSQL.

^1: attribute add/modify/delete operations silently succeed if the
    appropriate add/delete proc does not exist for each attribute;
    this may be correct to hide undesired/unimplemented correspondence
    between LDAP and SQL databases; however, a more appropriate
    LDAP behavior would be a failure with LDAP_UNAVAILABLE if a
    single write operation cannot be executed for such reason

- re-style according to the style giudelines for better readability
- updated to recent frontend/backend API changes
- fixed a few quirks about normalization
- "optimized" a few memory allocation/string handling functions
- fixed a few quirks about add/modify (still have to look ad modrdn)

todo:
- there is still something broken (at least with PostgreSQL and IBM db2,
  the two RDBMS O have at hand) when adding
- move everything to struct bervals and try to save a few strlen
- try some LDAP/SQL syntax relation to use appropriate value bind if possible
- ...

			================
Written by Hallvard B. Furuseth and placed into the public domain.
This software is not subject to any license of the University of Oslo.
			================

lutil_progname() and lutil_strcopy() are not declared, which can
be fatal since they do not return int.

Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>, Aug 2002.

manually. Automatic recovery would interfere with gentlehup restarts.

also, check for return value of dnNormalize2: if the returned
DN contains undefined attributes, the normalization fails.