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. 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
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24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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29 * $FreeBSD: src/lib/libc/gen/termios.c,v 1.9.2.1 2000/03/18 23:13:25 jasone Exp $
30 * $DragonFly: src/lib/libc/gen/termios.c,v 1.5 2005/11/19 22:32:53 swildner Exp $
32 * @(#)termios.c 8.2 (Berkeley) 2/21/94
35 #include "namespace.h"
36 #include <sys/types.h>
37 #include <sys/fcntl.h>
38 #include <sys/ioctl.h>
44 #include "un-namespace.h"
47 tcgetattr(int fd, struct termios *t)
50 return (_ioctl(fd, TIOCGETA, t));
54 tcsetattr(int fd, int opt, const struct termios *t)
56 struct termios localterm;
60 localterm.c_cflag |= CIGNORE;
63 switch (opt & ~TCSASOFT) {
65 return (_ioctl(fd, TIOCSETA, t));
67 return (_ioctl(fd, TIOCSETAW, t));
69 return (_ioctl(fd, TIOCSETAF, t));
77 tcsetpgrp(int fd, pid_t pgrp)
82 return (_ioctl(fd, TIOCSPGRP, &s));
90 if (_ioctl(fd, TIOCGPGRP, &s) < 0)
101 if (_ioctl(fd, TIOCGSID, &s) < 0)
108 cfgetospeed(const struct termios *t)
111 return (t->c_ospeed);
115 cfgetispeed(const struct termios *t)
118 return (t->c_ispeed);
122 cfsetospeed(struct termios *t, speed_t speed)
130 cfsetispeed(struct termios *t, speed_t speed)
138 cfsetspeed(struct termios *t, speed_t speed)
141 t->c_ispeed = t->c_ospeed = speed;
146 * Make a pre-existing termios structure into "raw" mode: character-at-a-time
147 * mode with no characters interpreted, 8-bit data path.
150 cfmakeraw(struct termios *t)
153 t->c_iflag &= ~(IMAXBEL|IXOFF|INPCK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IGNPAR);
154 t->c_iflag |= IGNBRK;
155 t->c_oflag &= ~OPOST;
156 t->c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN|NOFLSH|TOSTOP|PENDIN);
157 t->c_cflag &= ~(CSIZE|PARENB);
158 t->c_cflag |= CS8|CREAD;
164 tcsendbreak(int fd, int len __unused)
166 struct timeval sleepytime;
168 sleepytime.tv_sec = 0;
169 sleepytime.tv_usec = 400000;
170 if (_ioctl(fd, TIOCSBRK, 0) == -1)
172 _select(0, 0, 0, 0, &sleepytime);
173 if (_ioctl(fd, TIOCCBRK, 0) == -1)
181 return (_ioctl(fd, TIOCDRAIN, 0));
185 __weak_reference(__tcdrain, tcdrain);
189 tcflush(int fd, int which)
201 com = FREAD | FWRITE;
207 return (_ioctl(fd, TIOCFLUSH, &com));
211 tcflow(int fd, int action)
218 return (_ioctl(fd, TIOCSTOP, 0));
220 return (_ioctl(fd, TIOCSTART, 0));
223 if (tcgetattr(fd, &term) == -1)
225 c = term.c_cc[action == TCIOFF ? VSTOP : VSTART];
226 if (c != _POSIX_VDISABLE && _write(fd, &c, sizeof(c)) == -1)