2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
30 #if defined(LIBC_SCCS) && !defined(lint)
31 static char sccsid[] = "@(#)termios.c 8.2 (Berkeley) 2/21/94";
32 #endif /* LIBC_SCCS and not lint */
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include "namespace.h"
37 #include <sys/types.h>
38 #include <sys/fcntl.h>
39 #include <sys/ioctl.h>
47 #include "un-namespace.h"
50 tcgetattr(int fd, struct termios *t)
53 return (_ioctl(fd, TIOCGETA, t));
57 tcsetattr(int fd, int opt, const struct termios *t)
59 struct termios localterm;
63 localterm.c_cflag |= CIGNORE;
66 switch (opt & ~TCSASOFT) {
68 return (_ioctl(fd, TIOCSETA, t));
70 return (_ioctl(fd, TIOCSETAW, t));
72 return (_ioctl(fd, TIOCSETAF, t));
80 tcsetpgrp(int fd, pid_t pgrp)
85 return (_ioctl(fd, TIOCSPGRP, &s));
93 if (_ioctl(fd, TIOCGPGRP, &s) < 0)
104 if (_ioctl(fd, TIOCGSID, &s) < 0)
111 tcsetsid(int fd, pid_t pid)
114 if (pid != getsid(0)) {
119 return (_ioctl(fd, TIOCSCTTY, NULL));
123 cfgetospeed(const struct termios *t)
126 return (t->c_ospeed);
130 cfgetispeed(const struct termios *t)
133 return (t->c_ispeed);
137 cfsetospeed(struct termios *t, speed_t speed)
145 cfsetispeed(struct termios *t, speed_t speed)
153 cfsetspeed(struct termios *t, speed_t speed)
156 t->c_ispeed = t->c_ospeed = speed;
161 * Make a pre-existing termios structure into "raw" mode: character-at-a-time
162 * mode with no characters interpreted, 8-bit data path.
165 cfmakeraw(struct termios *t)
168 t->c_iflag &= ~(IMAXBEL|IXOFF|INPCK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IGNPAR);
169 t->c_iflag |= IGNBRK;
170 t->c_oflag &= ~OPOST;
171 t->c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN|NOFLSH|TOSTOP|PENDIN);
172 t->c_cflag &= ~(CSIZE|PARENB);
173 t->c_cflag |= CS8|CREAD;
179 * Obtain a termios structure which is similar to the one provided by
183 cfmakesane(struct termios *t)
186 t->c_cflag = TTYDEF_CFLAG;
187 t->c_iflag = TTYDEF_IFLAG;
188 t->c_lflag = TTYDEF_LFLAG;
189 t->c_oflag = TTYDEF_OFLAG;
190 t->c_ispeed = TTYDEF_SPEED;
191 t->c_ospeed = TTYDEF_SPEED;
192 memcpy(&t->c_cc, ttydefchars, sizeof ttydefchars);
196 tcsendbreak(int fd, int len __unused)
198 struct timeval sleepytime;
200 sleepytime.tv_sec = 0;
201 sleepytime.tv_usec = 400000;
202 if (_ioctl(fd, TIOCSBRK, 0) == -1)
204 (void)_select(0, 0, 0, 0, &sleepytime);
205 if (_ioctl(fd, TIOCCBRK, 0) == -1)
213 return (_ioctl(fd, TIOCDRAIN, 0));
216 __weak_reference(__tcdrain, tcdrain);
217 __weak_reference(__tcdrain, _tcdrain);
220 tcflush(int fd, int which)
232 com = FREAD | FWRITE;
238 return (_ioctl(fd, TIOCFLUSH, &com));
242 tcflow(int fd, int action)
249 return (_ioctl(fd, TIOCSTOP, 0));
251 return (_ioctl(fd, TIOCSTART, 0));
254 if (tcgetattr(fd, &term) == -1)
256 c = term.c_cc[action == TCIOFF ? VSTOP : VSTART];
257 if (c != _POSIX_VDISABLE && _write(fd, &c, sizeof(c)) == -1)