bin/ksh/tty.h

   1 /*      $NetBSD: tty.h,v 1.2 1997/01/12 19:12:25 tls Exp $      */
   2
   3 /*
   4         tty.h -- centralized definitions for a variety of terminal interfaces
   5
   6         created by DPK, Oct. 1986
   7
   8         Rearranged to work with autoconf, added TTY_state, get_tty/set_tty
   9                                                 Michael Rendell, May '94
  10
  11         last edit:      30-Jul-1987     D A Gwyn
  12 */
  13 /* $NetBSD: tty.h,v 1.2 1997/01/12 19:12:25 tls Exp $ */
  14
  15 /* some useful #defines */
  16 #ifdef EXTERN
  17 # define I__(i) = i
  18 #else
  19 # define I__(i)
  20 # define EXTERN extern
  21 # define EXTERN_DEFINED
  22 #endif
  23
  24 /* Don't know of a system on which including sys/ioctl.h with termios.h
  25  * causes problems.  If there is one, these lines need to be deleted and
  26  * aclocal.m4 needs to have stuff un-commented.
  27  */
  28 #ifdef SYS_IOCTL_WITH_TERMIOS
  29 # define SYS_IOCTL_WITH_TERMIOS
  30 #endif /* SYS_IOCTL_WITH_TERMIOS */
  31 #ifdef SYS_IOCTL_WITH_TERMIO
  32 # define SYS_IOCTL_WITH_TERMIO
  33 #endif /* SYS_IOCTL_WITH_TERMIO */
  34
  35 #ifdef  HAVE_TERMIOS_H
  36 # include <termios.h>
  37 # ifdef SYS_IOCTL_WITH_TERMIOS
  38 #  if !(defined(sun) && !defined(__svr4__)) /* too many warnings on sunos */
  39     /* Need to include sys/ioctl.h on some systems to get the TIOCGWINSZ
  40      * stuff (eg, digital unix).
  41      */
  42 #   include <sys/ioctl.h>
  43 #  endif /* !(sun && !__svr4__) */
  44 # endif /* SYS_IOCTL_WITH_TERMIOS */
  45 typedef struct termios TTY_state;
  46 #else
  47 # ifdef HAVE_TERMIO_H
  48 #  include <termio.h>
  49 #  ifdef SYS_IOCTL_WITH_TERMIO
  50 #   include <sys/ioctl.h> /* see comment above in termios stuff */
  51 #  endif /* SYS_IOCTL_WITH_TERMIO */
  52 #  if _BSD_SYSV                 /* BRL UNIX System V emulation */
  53 #   ifndef NTTYDISC
  54 #    define     TIOCGETD        _IOR( 't', 0, int )
  55 #    define     TIOCSETD        _IOW( 't', 1, int )
  56 #    define     NTTYDISC        2
  57 #   endif
  58 #   ifndef TIOCSTI
  59 #    define     TIOCSTI         _IOW( 't', 114, char )
  60 #   endif
  61 #   ifndef TIOCSPGRP
  62 #    define     TIOCSPGRP       _IOW( 't', 118, int )
  63 #   endif
  64 #  endif /* _BSD_SYSV */
  65 typedef struct termio TTY_state;
  66 # else /* HAVE_TERMIO_H */
  67 /* Assume BSD tty stuff.  Uses TIOCGETP, TIOCSETN; uses TIOCGATC/TIOCSATC if
  68  * available, otherwise it uses TIOCGETC/TIOCSETC (also uses TIOCGLTC/TIOCSLTC
  69  * if available)
  70  */
  71 #  ifdef _MINIX
  72 #   include <sgtty.h>
  73 #   define TIOCSETN     TIOCSETP
  74 #  else
  75 #   include <sys/ioctl.h>
  76 #  endif
  77 typedef struct {
  78         struct sgttyb   sgttyb;
  79 #  ifdef TIOCGATC
  80         struct lchars   lchars;
  81 #  else /* TIOCGATC */
  82         struct tchars   tchars;
  83 #   ifdef TIOCGLTC
  84         struct ltchars  ltchars;
  85 #   endif /* TIOCGLTC */
  86 #  endif /* TIOCGATC */
  87 } TTY_state;
  88 # endif /* HAVE_TERMIO_H */
  89 #endif /* HAVE_TERMIOS_H */
  90
  91 /* Flags for set_tty() */
  92 #define TF_NONE         0x00
  93 #define TF_WAIT         0x01    /* drain output, even it requires sleep() */
  94 #define TF_MIPSKLUDGE   0x02    /* kludge to unwedge RISC/os 5.0 tty driver */
  95
  96 EXTERN int              tty_fd I__(-1); /* dup'd tty file descriptor */
  97 EXTERN int              tty_devtty;     /* true if tty_fd is from /dev/tty */
  98 EXTERN TTY_state        tty_state;      /* saved tty state */
  99
 100 extern int      get_tty ARGS((int fd, TTY_state *ts));
 101 extern int      set_tty ARGS((int fd, TTY_state *ts, int flags));
 102 extern void     tty_init ARGS((int init_ttystate));
 103 extern void     tty_close ARGS((void));
 104
 105 /* be sure not to interfere with anyone else's idea about EXTERN */
 106 #ifdef EXTERN_DEFINED
 107 # undef EXTERN_DEFINED
 108 # undef EXTERN
 109 #endif
 110 #undef I__