LDAP search issue.

["Gökhan" <gokhan.afacan@gmail.com>]

Hello;

I have a question on LDAP search issue. 
I want to disable full search on the LDAP tree. 

Eg: 

My LDAP Tree is:

c=US, o=Dept1, cn=John Smith
c=US, o=Dept1, cn=Ann Adams

I want to deny to read full listing of the tree but only allow when the search condition meets only the required person.
In
the example above I want nobody to be listed. But when the search
criteria is "c=US, o=Dept1, cn=Ann Adams"  this entry must be listed.
When a search on "c=US" comes, nothing must be listed.

What is the correct  Access Control Information for this request??

Thanks.