Guardian Procedure Calls Reference Manual

Considerations
CAUTION: Passing an invalid file name to this procedure can result in a trap, a signal, or data
corruption. To verify that a file name is valid, use the FILENAME_SCAN_ procedure.
• The process file name of an unnamed process can be converted if it has a PIN of 255 or less.
• If filename contains a node name or if the default node name is remote, oldstyle-name
is normally returned in internal network form. Otherwise, oldstyle-name is in internal local
form.
An exception occurs when an 8-character destination name (for example, "$LONGDEV") is
supplied as part of filename. Such a name is converted without error into internal local form
if the local node is explicitly designated in filename or in the =_DEFAULTS DEFINE (if
filename does not contain a node name). Otherwise error 20 is returned.
Example
error := FILENAME_TO_OLDFILENAME_ ( fname:length,
oldstylename );
Related Programming Manual
For programming information about the FILENAME_TO_OLDFILENAME_ procedure, see the
Guardian Application Conversion Guide.
FILENAME_TO_OLDFILENAME_ Procedure 595