sig
type identity =
[ `Effective_user
| `Real_user
| `This_user of int * int * int array * string ]
val client_auth_method :
?identity:Rpc_auth_sys.identity -> unit -> Rpc_client.auth_method
val server_auth_method :
?lookup_hostname:bool ->
?require_privileged_port:bool -> unit -> Rpc_server.auth_method
val parse_user_name : string -> int * int * int array * string
end