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/*
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tty.h -- centralized definitions for a variety of terminal interfaces
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created by DPK, Oct. 1986
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Rearranged to work with autoconf, added TTY_state, get_tty/set_tty
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Michael Rendell, May '94
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last edit: 30-Jul-1987 D A Gwyn
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*/
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/* $Id$ */
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/* some useful #defines */
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#ifdef EXTERN
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# define I__(i) = i
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#else
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# define I__(i)
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# define EXTERN extern
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# define EXTERN_DEFINED
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#endif
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/* Don't know of a system on which including sys/ioctl.h with termios.h
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* causes problems. If there is one, these lines need to be deleted and
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* aclocal.m4 needs to have stuff un-commented.
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*/
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#ifdef SYS_IOCTL_WITH_TERMIOS
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# define SYS_IOCTL_WITH_TERMIOS
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#endif /* SYS_IOCTL_WITH_TERMIOS */
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#ifdef SYS_IOCTL_WITH_TERMIO
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# define SYS_IOCTL_WITH_TERMIO
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#endif /* SYS_IOCTL_WITH_TERMIO */
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#ifdef HAVE_TERMIOS_H
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# include <termios.h>
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# ifdef SYS_IOCTL_WITH_TERMIOS
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# if !(defined(sun) && !defined(__svr4__)) /* too many warnings on sunos */
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/* Need to include sys/ioctl.h on some systems to get the TIOCGWINSZ
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* stuff (eg, digital unix).
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*/
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# include <sys/ioctl.h>
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# endif /* !(sun && !__svr4__) */
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# endif /* SYS_IOCTL_WITH_TERMIOS */
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typedef struct termios TTY_state;
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#else
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# ifdef HAVE_TERMIO_H
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# include <termio.h>
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# ifdef SYS_IOCTL_WITH_TERMIO
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# include <sys/ioctl.h> /* see comment above in termios stuff */
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# endif /* SYS_IOCTL_WITH_TERMIO */
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# if _BSD_SYSV /* BRL UNIX System V emulation */
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# ifndef NTTYDISC
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# define TIOCGETD _IOR( 't', 0, int )
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# define TIOCSETD _IOW( 't', 1, int )
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# define NTTYDISC 2
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# endif
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# ifndef TIOCSTI
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# define TIOCSTI _IOW( 't', 114, char )
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# endif
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# ifndef TIOCSPGRP
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# define TIOCSPGRP _IOW( 't', 118, int )
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# endif
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# endif /* _BSD_SYSV */
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typedef struct termio TTY_state;
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# else /* HAVE_TERMIO_H */
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/* Assume BSD tty stuff. Uses TIOCGETP, TIOCSETN; uses TIOCGATC/TIOCSATC if
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* available, otherwise it uses TIOCGETC/TIOCSETC (also uses TIOCGLTC/TIOCSLTC
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* if available)
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*/
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# ifdef _MINIX
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# include <sgtty.h>
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# define TIOCSETN TIOCSETP
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# else
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# include <sys/ioctl.h>
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# endif
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typedef struct {
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struct sgttyb sgttyb;
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# ifdef TIOCGATC
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struct lchars lchars;
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# else /* TIOCGATC */
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struct tchars tchars;
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# ifdef TIOCGLTC
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struct ltchars ltchars;
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# endif /* TIOCGLTC */
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# endif /* TIOCGATC */
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} TTY_state;
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# endif /* HAVE_TERMIO_H */
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#endif /* HAVE_TERMIOS_H */
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/* Flags for set_tty() */
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#define TF_NONE 0x00
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#define TF_WAIT 0x01 /* drain output, even it requires sleep() */
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#define TF_MIPSKLUDGE 0x02 /* kludge to unwedge RISC/os 5.0 tty driver */
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EXTERN int tty_fd I__(-1); /* dup'd tty file descriptor */
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EXTERN int tty_devtty; /* true if tty_fd is from /dev/tty */
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EXTERN TTY_state tty_state; /* saved tty state */
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extern int get_tty ARGS((int fd, TTY_state *ts));
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extern int set_tty ARGS((int fd, TTY_state *ts, int flags));
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extern void tty_init ARGS((int init_ttystate));
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extern void tty_close ARGS((void));
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/* be sure not to interfere with anyone else's idea about EXTERN */
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#ifdef EXTERN_DEFINED
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# undef EXTERN_DEFINED
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# undef EXTERN
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#endif
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#undef I__
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