Closes all files opened by OpenVMS RMS for the image or process
    and halts I/O activity. This routine performs a $CLOSE service
    for each file opened for processing.

    Format

      SYS$RMSRUNDWN  buf-addr ,type-value

    C Prototype

      int sys$rmsrundwn  (void *buf-addr, unsigned char *type-value);

  Additional Information (explode) :

• Arguments