prognum
    The program number associated with the service procedure.
 versnum
    The version number associated with the service procedure.
 procnum
    The procedure number associated with the service procedure.
 progname
    The address of the service procedure being registered with the
    ONC RPC service package.
 inproc
    The XDR routine used to decode the service procedure's arguments.
 outproc
    The XDR routine used to encode the service procedure's results.