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Revision 199898 - (show annotations) (download)
Sat Nov 28 23:50:48 2009 UTC (14 years, 7 months ago) by ed
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File size: 3176 byte(s)
Decompose <sys/termios.h>.

The <sys/termios.h> header file is hardlinked to <termios.h>. It
contains both the structures and the flag definitions, but also the C
library interface that's implemented by the C library.

This header file has the typical problem of including too many random
things and being badly ordered. Instead of trying to fix this, decompose
it into two header files:

- <sys/_termios.h>, which contains struct termios and the flags.
- <termios.h>, which includes <sys/_termios.h> and contains the C
  library interface.

This means userspace has to include <termios.h> for struct termios,
while kernelspace code has to include <sys/tty.h>. Also add a
<sys/termios.h>, which prints a warning message before including
<termios.h>. I am aware that there are some applications that use this
header file as well.

1 /*-
2 * Copyright (c) 1988, 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)termios.h 8.3 (Berkeley) 3/28/94
30 * $FreeBSD$
31 */
32
33 #ifndef _TERMIOS_H_
34 #define _TERMIOS_H_
35
36 #include <sys/cdefs.h>
37 #include <sys/_termios.h>
38 #include <sys/_types.h>
39
40 #ifndef _PID_T_DECLARED
41 typedef __pid_t pid_t;
42 #define _PID_T_DECLARED
43 #endif
44
45 #ifndef _POSIX_SOURCE
46 #define OXTABS TAB3
47 #define MDMBUF CCAR_OFLOW
48 #endif
49
50 #ifndef _POSIX_SOURCE
51 #define CCEQ(val, c) ((c) == (val) && (val) != _POSIX_VDISABLE)
52 #endif
53
54 /*
55 * Commands passed to tcsetattr() for setting the termios structure.
56 */
57 #define TCSANOW 0 /* make change immediate */
58 #define TCSADRAIN 1 /* drain output, then change */
59 #define TCSAFLUSH 2 /* drain output, flush input */
60 #ifndef _POSIX_SOURCE
61 #define TCSASOFT 0x10 /* flag - don't alter h.w. state */
62 #endif
63
64 #define TCIFLUSH 1
65 #define TCOFLUSH 2
66 #define TCIOFLUSH 3
67 #define TCOOFF 1
68 #define TCOON 2
69 #define TCIOFF 3
70 #define TCION 4
71
72 __BEGIN_DECLS
73 speed_t cfgetispeed(const struct termios *);
74 speed_t cfgetospeed(const struct termios *);
75 int cfsetispeed(struct termios *, speed_t);
76 int cfsetospeed(struct termios *, speed_t);
77 int tcgetattr(int, struct termios *);
78 int tcsetattr(int, int, const struct termios *);
79 int tcdrain(int);
80 int tcflow(int, int);
81 int tcflush(int, int);
82 int tcsendbreak(int, int);
83
84 #if __POSIX_VISIBLE >= 200112 || __BSD_VISIBLE
85 pid_t tcgetsid(int);
86 #endif
87 #if __BSD_VISIBLE
88 int tcsetsid(int, pid_t);
89
90 void cfmakeraw(struct termios *);
91 int cfsetspeed(struct termios *, speed_t);
92 #endif
93 __END_DECLS
94
95 #endif /* !_TERMIOS_H_ */
96
97 #ifndef _POSIX_SOURCE
98 #include <sys/ttycom.h>
99 #include <sys/ttydefaults.h>
100 #endif

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