pam_ldap - trouble understanding the do_authentication function

[vidya chandrasekaran]

  Hi,
  
  I have been reading the source of pam_ldap(pam_ldap-180) 
  
  From what i understand of the authentication logic,
  
  1. The username being authenticated is searched in the ldap directory  to get the userdn (_get_user_info  ()), following which
  2. a simple bind is attempted. (_connect_as_user)
  
  What escapes me is this, why a _connect_anonymously() call follwing step 2
  
  Any pointer will be much appreciated.
  
  Thanks
  Vidya
  
  
  
  
  

			
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