include/shtty.h

   1 /* Copyright (C) 1999 Free Software Foundation, Inc.
   2
   3 /* This file is part of GNU Bash, the Bourne Again SHell.
   4
   5    Bash is free software; you can redistribute it and/or modify it under
   6    the terms of the GNU General Public License as published by the Free
   7    Software Foundation; either version 2, or (at your option) any later
   8    version.
   9
  10    Bash is distributed in the hope that it will be useful, but WITHOUT ANY
  11    WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13    for more details.
  14
  15    You should have received a copy of the GNU General Public License along
  16    with Bash; see the file COPYING.  If not, write to the Free Software
  17    Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
  18
  19 /*
  20  * shtty.h -- include the correct system-dependent files to manipulate the
  21  *            tty
  22  */
  23
  24 #ifndef __SH_TTY_H_
  25 #define __SH_TTY_H_
  26
  27 #include "stdc.h"
  28
  29 #if defined (_POSIX_VERSION) && defined (HAVE_TERMIOS_H) && defined (HAVE_TCGETATTR) && !defined (TERMIOS_MISSING)
  30 #  define TERMIOS_TTY_DRIVER
  31 #else
  32 #  if defined (HAVE_TERMIO_H)
  33 #    define TERMIO_TTY_DRIVER
  34 #  else
  35 #    define NEW_TTY_DRIVER
  36 #  endif
  37 #endif
  38
  39 /*
  40  * The _POSIX_SOURCE define is to avoid multiple symbol definitions
  41  * between sys/ioctl.h and termios.h.  Ditto for the test against SunOS4
  42  * and the undefining of several symbols.
  43  */
  44
  45 #ifdef TERMIOS_TTY_DRIVER
  46 #  if (defined (SunOS4) || defined (SunOS5)) && !defined (_POSIX_SOURCE)
  47 #    define _POSIX_SOURCE
  48 #  endif
  49 #  if defined (SunOS4)
  50 #    undef ECHO
  51 #    undef NOFLSH
  52 #    undef TOSTOP
  53 #  endif /* SunOS4 */
  54 #  include <termios.h>
  55 #  define TTYSTRUCT struct termios
  56 #else
  57 #  ifdef TERMIO_TTY_DRIVER
  58 #    include <termio.h>
  59 #    define TTYSTRUCT struct termio
  60 #  else /* NEW_TTY_DRIVER */
  61 #    include <sgtty.h>
  62 #    define TTYSTRUCT struct sgttyb
  63 #  endif
  64 #endif
  65
  66 /* Functions imported from lib/sh/shtty.c */
  67
  68 /* Get and set terminal attributes for the file descriptor passed as
  69    an argument. */
  70 extern int ttgetattr __P((int, TTYSTRUCT *));
  71 extern int ttsetattr __P((int, TTYSTRUCT *));
  72
  73 /* Save and restore the terminal's attributes from static storage. */
  74 extern void ttsave __P((void));
  75 extern void ttrestore __P((void));
  76
  77 /* Return the attributes corresponding to the file descriptor (0 or 1)
  78    passed as an argument. */
  79 extern TTYSTRUCT *ttattr __P((int));
  80
  81 /* These functions only operate on the passed TTYSTRUCT; they don't
  82    actually change anything with the kernel's current tty settings. */
  83 extern int tt_setonechar __P((TTYSTRUCT *));
  84 extern int tt_setnoecho __P((TTYSTRUCT *));
  85 extern int tt_seteightbit __P((TTYSTRUCT *));
  86 extern int tt_setnocanon __P((TTYSTRUCT *));
  87 extern int tt_setcbreak __P((TTYSTRUCT *));
  88
  89 /* These functions are all generally mutually exclusive.  If you call
  90    more than one (bracketed with calls to ttsave and ttrestore, of
  91    course), the right thing will happen, but more system calls will be
  92    executed than absolutely necessary.  You can do all of this yourself
  93    with the other functions; these are only conveniences. */
  94 extern int ttonechar __P((void));
  95 extern int ttnoecho __P((void));
  96 extern int tteightbit __P((void));
  97 extern int ttnocanon __P((void));
  98
  99 extern int ttcbreak __P((void));
 100
 101 #endif