how can I know if I am authenticated

[François Beretti <francois.beretti@enatel.com>]

Hello all

I use the openldap sdk, and in my software users can authenticate 
themselves on an ldapv3 directory server
I noticed today that on iPlanet directory the ldap_bind function return 
LDAP_SUCCESS if you provide a dn and an empty password
I guess that the user is actually anonymous after the bind (probably the 
"non-auhenticated" mode, disabled in openldap...)
You can also create a user with no password, and so the user is really 
authenticated in this case (I think)

So my question is : what can I do in order to know if I am anonymous or 
authenticated ?

thank you very much

François Beretti