STRUCTURE /Io_Data/
C      - Input/Output data
         CHARACTER netfile*80
         
         INTEGER   filepnt(MAX_FILES)
         CHARACTER files(MAX_FILES)*80
         LOGICAL   use_file(1000)
         
         INTEGER   numclargs            ! # of command line args
         CHARACTER clarg(MAX_CLARGS)*80 ! Command line arguments

         LOGICAL   show_warnings
         
C      - Externals data
         CHARACTER gt_hostname*40
         INTEGER   gt_port
         CHARACTER dd_hostname*40
         INTEGER   dd_port
         
         END STRUCTURE