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/* $OpenBSD: tty.h,v 1.1 1996/08/14 06:19:12 downsj Exp $ */
/*
tty.h -- centralized definitions for a variety of terminal interfaces
created by DPK, Oct. 1986
Rearranged to work with autoconf, added TTY_state, get_tty/set_tty
Michael Rendell, May '94
last edit: 30-Jul-1987 D A Gwyn
*/
/* some useful #defines */
#ifdef EXTERN
# define I__(i) = i
#else
# define I__(i)
# define EXTERN extern
# define EXTERN_DEFINED
#endif
#ifdef HAVE_TERMIOS_H
# include <termios.h>
typedef struct termios TTY_state;
#else
# ifdef HAVE_TERMIO_H
# include <termio.h>
# if _BSD_SYSV /* BRL UNIX System V emulation */
# ifndef NTTYDISC
# define TIOCGETD _IOR( 't', 0, int )
# define TIOCSETD _IOW( 't', 1, int )
# define NTTYDISC 2
# endif
# ifndef TIOCSTI
# define TIOCSTI _IOW( 't', 114, char )
# endif
# ifndef TIOCSPGRP
# define TIOCSPGRP _IOW( 't', 118, int )
# endif
# endif /* _BSD_SYSV */
typedef struct termio TTY_state;
# else /* HAVE_TERMIO_H */
/* Assume BSD tty stuff. Uses TIOCGETP, TIOCSETN; uses TIOCGATC/TIOCSATC if
* available, otherwise it uses TIOCGETC/TIOCSETC (also uses TIOCGLTC/TIOCSLTC
* if available)
*/
# ifdef _MINIX
# include <sgtty.h>
# define TIOCSETN TIOCSETP
# else
# include <sys/ioctl.h>
# endif
typedef struct {
struct sgttyb sgttyb;
# ifdef TIOCGATC
struct lchars lchars;
# else /* TIOCGATC */
struct tchars tchars;
# ifdef TIOCGLTC
struct ltchars ltchars;
# endif /* TIOCGLTC */
# endif /* TIOCGATC */
} TTY_state;
# endif /* HAVE_TERMIO_H */
#endif /* HAVE_TERMIOS_H */
/* Flags for set_tty() */
#define TF_NONE 0x00
#define TF_WAIT 0x01 /* drain output, even it requires sleep() */
#define TF_MIPSKLUDGE 0x02 /* kludge to unwedge RISC/os 5.0 tty driver */
EXTERN int tty_fd I__(-1); /* dup'd tty file descriptor */
EXTERN int tty_devtty; /* true if tty_fd is from /dev/tty */
EXTERN TTY_state tty_state; /* saved tty state */
extern int get_tty ARGS((int fd, TTY_state *ts));
extern int set_tty ARGS((int fd, TTY_state *ts, int flags));
extern void tty_init ARGS((int init_ttystate));
extern void tty_close ARGS((void));
/* be sure not to interfere with anyone else's idea about EXTERN */
#ifdef EXTERN_DEFINED
# undef EXTERN_DEFINED
# undef EXTERN
#endif
#undef I__
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