ldap_sasl_bind vs. ldap_sasl_interactive_bind_s

Hi,

I am still trying to make an sasl bind. Now I use ldap_sasl_bind_s with 'CRAM-MD5'. The server sends a 'LDAP_SASL_BIND_IN_PROGRESS' back, but as far as I can see the server cred are empty. How do I make the next call with ldap_sasl_bind_s?

In the documentation I have seen that the use of ldap_sasl_bind is not recommended as client use, instead the ldap_sasl_interactive_bind_s should be preferred. Has anyone a working example of how to use this method, or some api doc? I have no clue how to set 'flags' the LDAP_SASL_INTERACT_PROC, an the 'defaults' params..

Thx,

Thilko