2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
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28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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33 * $FreeBSD: src/lib/libc/gen/termios.c,v 1.9.2.1 2000/03/18 23:13:25 jasone Exp $
34 * $DragonFly: src/lib/libc/gen/termios.c,v 1.5 2005/11/19 22:32:53 swildner Exp $
36 * @(#)termios.c 8.2 (Berkeley) 2/21/94
39 #include "namespace.h"
40 #include <sys/types.h>
41 #include <sys/fcntl.h>
42 #include <sys/ioctl.h>
48 #include "un-namespace.h"
51 tcgetattr(int fd, struct termios *t)
54 return (_ioctl(fd, TIOCGETA, t));
58 tcsetattr(int fd, int opt, const struct termios *t)
60 struct termios localterm;
64 localterm.c_cflag |= CIGNORE;
67 switch (opt & ~TCSASOFT) {
69 return (_ioctl(fd, TIOCSETA, t));
71 return (_ioctl(fd, TIOCSETAW, t));
73 return (_ioctl(fd, TIOCSETAF, t));
81 tcsetpgrp(int fd, pid_t pgrp)
86 return (_ioctl(fd, TIOCSPGRP, &s));
94 if (_ioctl(fd, TIOCGPGRP, &s) < 0)
105 if (_ioctl(fd, TIOCGSID, &s) < 0)
112 cfgetospeed(const struct termios *t)
115 return (t->c_ospeed);
119 cfgetispeed(const struct termios *t)
122 return (t->c_ispeed);
126 cfsetospeed(struct termios *t, speed_t speed)
134 cfsetispeed(struct termios *t, speed_t speed)
142 cfsetspeed(struct termios *t, speed_t speed)
145 t->c_ispeed = t->c_ospeed = speed;
150 * Make a pre-existing termios structure into "raw" mode: character-at-a-time
151 * mode with no characters interpreted, 8-bit data path.
154 cfmakeraw(struct termios *t)
157 t->c_iflag &= ~(IMAXBEL|IXOFF|INPCK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IGNPAR);
158 t->c_iflag |= IGNBRK;
159 t->c_oflag &= ~OPOST;
160 t->c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN|NOFLSH|TOSTOP|PENDIN);
161 t->c_cflag &= ~(CSIZE|PARENB);
162 t->c_cflag |= CS8|CREAD;
168 tcsendbreak(int fd, int len __unused)
170 struct timeval sleepytime;
172 sleepytime.tv_sec = 0;
173 sleepytime.tv_usec = 400000;
174 if (_ioctl(fd, TIOCSBRK, 0) == -1)
176 _select(0, 0, 0, 0, &sleepytime);
177 if (_ioctl(fd, TIOCCBRK, 0) == -1)
185 return (_ioctl(fd, TIOCDRAIN, 0));
189 __weak_reference(__tcdrain, tcdrain);
193 tcflush(int fd, int which)
205 com = FREAD | FWRITE;
211 return (_ioctl(fd, TIOCFLUSH, &com));
215 tcflow(int fd, int action)
222 return (_ioctl(fd, TIOCSTOP, 0));
224 return (_ioctl(fd, TIOCSTART, 0));
227 if (tcgetattr(fd, &term) == -1)
229 c = term.c_cc[action == TCIOFF ? VSTOP : VSTART];
230 if (c != _POSIX_VDISABLE && _write(fd, &c, sizeof(c)) == -1)