anchor.diff:  %% Attribute fetching functions :
   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   
  +%%--------------------------------------------------------------------
  +%% Function: get_password_for_user(Username)
  +%%           Username = string()
  +%% Descrip.: Returns the password for a user.
  +%% Returns : Password               |
  +%%           nomatch                |
  +%%           throw({siperror, ...})
  +%%           Password = string()
  +%%--------------------------------------------------------------------
   get_password_for_user(User) ->
       {Src, Res} = module_apply(get_password_for_user, [User]),
       ResStr = case Res of
  
positive.code: 	]).
  
  -export([behaviour_info/1]).
  
  %%--------------------------------------------------------------------
  %% Function: behaviour_info(callbacks)
  
negative.code: %%%-------------------------------------------------------------------
  %%% File    : sipuserdb.erl
  %%% Author  : Fredrik Thulin <ft@it.su.se>
  %%% Descrip.: Yxa user database. Implemented to be easy to extend with
  %%%           new backend modules. Which backends we use is managed
  %%%           through configuration (parameter 'userdb_modules'). We
  %%%           query the backends in the specified order and stop when
  %%%           a module returns something other than 'nomatch' or
  %%%           'error', or there are no more backends to query.
  %%% Created : 30 Sep 2003 by Fredrik Thulin <ft@it.su.se>
  %%%-------------------------------------------------------------------
  
  -module(sipuserdb).
  
  %%--------------------------------------------------------------------
  %% External exports
  %%--------------------------------------------------------------------
  -export([yxa_init/0,
  	 get_user_with_address/1,
  	 get_users_for_address_of_record/1,
  