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lh9ed821d2023-04-07 01:36:19 -07001/* Copyright (C) 1991,92,93,94,96,97,98,99, 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17 02111-1307 USA. */
18
19/*
20 * POSIX Standard: 7.1-2 General Terminal Interface <termios.h>
21 */
22
23#ifndef _TERMIOS_H
24#define _TERMIOS_H 1
25
26#include <features.h>
27#ifdef __USE_UNIX98
28/* We need `pid_t'. */
29# include <bits/types.h>
30# ifndef __pid_t_defined
31typedef __pid_t pid_t;
32# define __pid_t_defined
33# endif
34#endif
35
36__BEGIN_DECLS
37
38/* Get the system-dependent definitions of `struct termios', `tcflag_t',
39 `cc_t', `speed_t', and all the macros specifying the flag bits. */
40#include <bits/termios.h>
41
42#ifdef __USE_BSD
43/* Compare a character C to a value VAL from the `c_cc' array in a
44 `struct termios'. If VAL is _POSIX_VDISABLE, no character can match it. */
45# define CCEQ(val, c) ((c) == (val) && (val) != _POSIX_VDISABLE)
46#endif
47
48/* Return the output baud rate stored in *TERMIOS_P. */
49extern speed_t cfgetospeed (__const struct termios *__termios_p) __THROW;
50
51/* Return the input baud rate stored in *TERMIOS_P. */
52extern speed_t cfgetispeed (__const struct termios *__termios_p) __THROW;
53
54/* Set the output baud rate stored in *TERMIOS_P to SPEED. */
55extern int cfsetospeed (struct termios *__termios_p, speed_t __speed) __THROW;
56libc_hidden_proto(cfsetospeed)
57
58/* Set the input baud rate stored in *TERMIOS_P to SPEED. */
59extern int cfsetispeed (struct termios *__termios_p, speed_t __speed) __THROW;
60libc_hidden_proto(cfsetispeed)
61
62#ifdef __USE_BSD
63/* Set both the input and output baud rates in *TERMIOS_OP to SPEED. */
64extern int cfsetspeed (struct termios *__termios_p, speed_t __speed) __THROW;
65#endif
66
67
68/* Put the state of FD into *TERMIOS_P. */
69extern int tcgetattr (int __fd, struct termios *__termios_p) __THROW;
70libc_hidden_proto(tcgetattr)
71
72/* Set the state of FD to *TERMIOS_P.
73 Values for OPTIONAL_ACTIONS (TCSA*) are in <bits/termios.h>. */
74extern int tcsetattr (int __fd, int __optional_actions,
75 __const struct termios *__termios_p) __THROW;
76libc_hidden_proto(tcsetattr)
77
78
79#ifdef __USE_BSD
80/* Set *TERMIOS_P to indicate raw mode. */
81extern void cfmakeraw (struct termios *__termios_p) __THROW;
82#endif
83
84/* Send zero bits on FD. */
85extern int tcsendbreak (int __fd, int __duration) __THROW;
86
87/* Wait for pending output to be written on FD.
88
89 This function is a cancellation point and therefore not marked with
90 __THROW. */
91extern int tcdrain (int __fd);
92
93/* Flush pending data on FD.
94 Values for QUEUE_SELECTOR (TC{I,O,IO}FLUSH) are in <bits/termios.h>. */
95extern int tcflush (int __fd, int __queue_selector) __THROW;
96
97/* Suspend or restart transmission on FD.
98 Values for ACTION (TC[IO]{OFF,ON}) are in <bits/termios.h>. */
99extern int tcflow (int __fd, int __action) __THROW;
100
101
102#ifdef __USE_UNIX98
103/* Get process group ID for session leader for controlling terminal FD. */
104extern __pid_t tcgetsid (int __fd) __THROW;
105#endif
106
107
108#ifdef __USE_BSD
109# include <sys/ttydefaults.h>
110#endif
111
112__END_DECLS
113
114#endif /* termios.h */