{
{   The purpose of this procedure is to provide file access to logs.
{
{   Only record level access is supported.  Append access to  ascii  logs  and
{ read  access  to  all  logs  are supported.  The fap (file access procedure)
{ allows opens of log files for either append only (for ascii  logs  only)  or
{ read  only; no other access modes are allowed, and reading and appending can
{ not be done  by  the  same  instance  of  open.   Positioning  requests  are
{ processed  if  the  open was for read access and are ignored if the open was
{ for append access.
{
{       BAP$LOG_DEVICE (FILE_IDENTIFIER, CALL_BLOCK, LAYER_NUMBER, STATUS)
{
{ FILE_IDENTIFIER: (input) This parameter specifies the file access identifier
{       established when the file was opened.
{
{ CALL_BLOCK:  (input)  This parameter specifies the call block that describes
{       the request to be performed.
{
{ LAYER_NUMBER: (input) This  parameter  specifies  the  index  into  the  fap
{       control information for this layer.
{
{ STATUS: (output) This parameter specifies the request status.
{
