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tty.h

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+/*	$OpenBSD: tty.h,v 1.2 1996/11/21 07:59:36 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
+
+/* Don't know of a system on which including sys/ioctl.h with termios.h
+ * causes problems.  If there is one, these lines need to be deleted and
+ * aclocal.m4 needs to have stuff un-commented.
+ */
+#ifdef SYS_IOCTL_WITH_TERMIOS
+# define SYS_IOCTL_WITH_TERMIOS
+#endif /* SYS_IOCTL_WITH_TERMIOS */
+#ifdef SYS_IOCTL_WITH_TERMIO
+# define SYS_IOCTL_WITH_TERMIO
+#endif /* SYS_IOCTL_WITH_TERMIO */
+
+#ifdef	HAVE_TERMIOS_H
+# include <termios.h>
+# ifdef SYS_IOCTL_WITH_TERMIOS
+#  if !(defined(sun) && !defined(__svr4__)) /* too many warnings on sunos */
+    /* Need to include sys/ioctl.h on some systems to get the TIOCGWINSZ
+     * stuff (eg, digital unix).
+     */
+#   include <sys/ioctl.h>
+#  endif /* !(sun && !__svr4__) */
+# endif /* SYS_IOCTL_WITH_TERMIOS */
+typedef struct termios TTY_state;
+#else
+# ifdef HAVE_TERMIO_H
+#  include <termio.h>
+#  ifdef SYS_IOCTL_WITH_TERMIO
+#   include <sys/ioctl.h> /* see comment above in termios stuff */
+#  endif /* SYS_IOCTL_WITH_TERMIO */
+#  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__