file_id	IN:	File identifier returned by Hopen
	filename	OUT:	Complete path and filename for the file
	access	OUT:	Access mode file is opened with
	attach	OUT:	Number of access identifiers attached to the file

	Purpose	Returns file information through a reference of its file identifier.
	Return value	Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
	Description	Gets the complete path name, access mode, and number of access identifiers associated with a file. The filename parameter is a pointer to a character pointer which will be modified when the function returns. Upon completion, filename is set to point to the file name in internal storage. All output parameters must be non-null pointers.