{
{       The purpose of this routine is to display the hardware elements
{ (local and remote Network Access Devices and trunks) and their status,
{ which are defined for the Remote Host Facility Access Method. The information
{ required to produce the display is taken from RFV$RHFAM_STATUS_TABLE.
{ The caller of this routine uses the standard command language display
{ interface routines and has opened the display file. It will be closed by
{ the caller when this routine exits.
{
{ RFP$DISPLAY_RHFAM_ELEMENTS (ELEMENT_NAMES, DISPLAY_TYPE, DISPLAY_OPTION
{   DISPLAY_CONTROL, STATUS)
{
{ ELEMENT_NAMES: (input) This parameter specifies a list of local or remote
{   nads or trunks or the keyword ALL, signifying all the elements of the
{   specified DISPLAY_TYPE to be  used as selection criteria for the display.
{   determining hosts whose servers are to be displayed.
{
{ DISPLAY_TYPE: (input) This parameter specifies the type of element to be
{   displayed:
{
{       rfc$edt_local_nads: The local nads specified will be displayed.
{
{       rfc$edt_remote_nads: The remote nads specified will be displayed.
{
{       rfc$edt_trunks: The trunks specified will be displayed.
{
{ DISPLAY_OPTION: (input) This parameter specifies the format of the display.
{
{       rfc$do_brief: Only the status of the specified elements is displayed.
{
{       rfc$do_full: Channel or address, type, controlware reloading info, last
{                 connect time, and dump disposition as well as status of the
{                 specified elements is displayed.
{
{ DISPLAY_CONTROL: (input_output) This parameter specifies all information
{   required by the command language display interface routines about the
{   display file. This data is set up by the caller of this routine when
{   the display file is opened and will be updated by this routine as display
{   information is generated.
{
{ STATUS: (output) This parameter returns the results of the request. A
{   status of normal indicates all servers specified have been displayed:
{
{   CONDITIONS: rfe$element_not_found
{
{   IDENTIFIER: 'RF'
{
