2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
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15 * This product includes software developed by the University of
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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)
101 cfgetospeed(const struct termios *t)
104 return (t->c_ospeed);
108 cfgetispeed(const struct termios *t)
111 return (t->c_ispeed);
115 cfsetospeed(struct termios *t, speed_t speed)
123 cfsetispeed(struct termios *t, speed_t speed)
131 cfsetspeed(struct termios *t, speed_t speed)
134 t->c_ispeed = t->c_ospeed = speed;
139 * Make a pre-existing termios structure into "raw" mode: character-at-a-time
140 * mode with no characters interpreted, 8-bit data path.
143 cfmakeraw(struct termios *t)
146 t->c_iflag &= ~(IMAXBEL|IXOFF|INPCK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IGNPAR);
147 t->c_iflag |= IGNBRK;
148 t->c_oflag &= ~OPOST;
149 t->c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN|NOFLSH|TOSTOP|PENDIN);
150 t->c_cflag &= ~(CSIZE|PARENB);
151 t->c_cflag |= CS8|CREAD;
157 tcsendbreak(int fd, int len __unused)
159 struct timeval sleepytime;
161 sleepytime.tv_sec = 0;
162 sleepytime.tv_usec = 400000;
163 if (_ioctl(fd, TIOCSBRK, 0) == -1)
165 _select(0, 0, 0, 0, &sleepytime);
166 if (_ioctl(fd, TIOCCBRK, 0) == -1)
174 return (_ioctl(fd, TIOCDRAIN, 0));
178 __weak_reference(__tcdrain, tcdrain);
182 tcflush(int fd, int which)
194 com = FREAD | FWRITE;
200 return (_ioctl(fd, TIOCFLUSH, &com));
204 tcflow(int fd, int action)
211 return (_ioctl(fd, TIOCSTOP, 0));
213 return (_ioctl(fd, TIOCSTART, 0));
216 if (tcgetattr(fd, &term) == -1)
218 c = term.c_cc[action == TCIOFF ? VSTOP : VSTART];
219 if (c != _POSIX_VDISABLE && _write(fd, &c, sizeof(c)) == -1)