Hello.
I'm sorry if this is a silly question, but the only thing close to an
answer I could find is from a post of Hallvard B Furuseth to this list
(pre-dating the actual ldap_destroy() introduction) stating that
ldap_unbind() was mis-named and should have been called ldap_destroy().
The question is whether to use ldap_destroy() or ldap_unbind().
More precisely, the question is which one is preferable in a
single-threaded application that never calls ldap_dup().
From reading the man page of ldap_dup()/ldap_destroy() and above
mentioned post, I would get the impression that technichally, it doesn't
matter, so I would gess ldap_unbind() to be slightly preferable because
it works with pre-2.4.24 OpenLDAP.
However, proposing such an adjustment
(https://redmine.lighttpd.net/issues/2849 in case anyone cares[*]) was
vigorously turned down stating I didn't know what I was talking about so
I might be missing something.