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
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation, either version 3 of the License, or
8   (at your option) any later version.
9
10   Bash is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with Bash.  If not, see <http://www.gnu.org/licenses/>.
17*/
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. */
70extern int ttgetattr __P((int, TTYSTRUCT *));
71extern int ttsetattr __P((int, TTYSTRUCT *));
72
73/* Save and restore the terminal's attributes from static storage. */
74extern void ttsave __P((void));
75extern void ttrestore __P((void));
76
77/* Return the attributes corresponding to the file descriptor (0 or 1)
78   passed as an argument. */
79extern 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. */
83extern int tt_setonechar __P((TTYSTRUCT *));
84extern int tt_setnoecho __P((TTYSTRUCT *));
85extern int tt_seteightbit __P((TTYSTRUCT *));
86extern int tt_setnocanon __P((TTYSTRUCT *));
87extern 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
95/* These functions work with a given file descriptor and set terminal
96   attributes */
97extern int ttfd_onechar __P((int, TTYSTRUCT *));
98extern int ttfd_noecho __P((int, TTYSTRUCT *));
99extern int ttfd_eightbit __P((int, TTYSTRUCT *));
100extern int ttfd_nocanon __P((int, TTYSTRUCT *));
101
102extern int ttfd_cbreak __P((int, TTYSTRUCT *));
103
104/* These functions work with fd 0 and the TTYSTRUCT saved with ttsave () */
105extern int ttonechar __P((void));
106extern int ttnoecho __P((void));
107extern int tteightbit __P((void));
108extern int ttnocanon __P((void));
109
110extern int ttcbreak __P((void));
111
112#endif
113