# File lib/net/ldap.rb, line 1072
  def search_subschema_entry
    rs = search(:ignore_server_caps => true, :base => "",
                :scope => SearchScope_BaseObject,
                :attributes => [:subschemaSubentry])
    return Net::LDAP::Entry.new unless (rs and rs.first)

    subschema_name = rs.first.subschemasubentry
    return Net::LDAP::Entry.new unless (subschema_name and subschema_name.first)

    rs = search(:ignore_server_caps => true, :base => subschema_name.first,
                :scope => SearchScope_BaseObject,
                :filter => "objectclass=subschema",
                :attributes => [:objectclasses, :attributetypes])
    (rs and rs.first) or Net::LDAP::Entry.new
  end