usr/src/contrib/jove/ttystate.h

/* Various tty state structures.
 * Each is an array, subscripted by one of "OFF" or "ON".
 */

#ifdef UNIX
# ifdef TIOCSLTC
extern struct ltchars   ls[2];
# endif /* TIOCSLTC */

# ifdef TIOCGETC
extern struct tchars    tc[2];
# endif

# ifdef BRLUNIX
extern struct sg_brl    sg[2];
# else
#  ifdef SYSV
extern struct termio    sg[2];
#  else /* SYSV */
extern struct sgttyb    sg[2];
#  endif /* SYSV */
# endif /* BRLUNIX */
#endif /* UNIX */