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"
49 #include "libc_private.h"
52 tcgetattr(int fd, struct termios *t)
55 return (_ioctl(fd, TIOCGETA, t));
59 tcsetattr(int fd, int opt, const struct termios *t)
61 struct termios localterm;
65 localterm.c_cflag |= CIGNORE;
68 switch (opt & ~TCSASOFT) {
70 return (_ioctl(fd, TIOCSETA, t));
72 return (_ioctl(fd, TIOCSETAW, t));
74 return (_ioctl(fd, TIOCSETAF, t));
82 tcsetpgrp(int fd, pid_t pgrp)
87 return (_ioctl(fd, TIOCSPGRP, &s));
95 if (_ioctl(fd, TIOCGPGRP, &s) < 0)
106 if (_ioctl(fd, TIOCGSID, &s) < 0)
113 tcsetsid(int fd, pid_t pid)
116 if (pid != getsid(0)) {
121 return (_ioctl(fd, TIOCSCTTY, NULL));
125 cfgetospeed(const struct termios *t)
128 return (t->c_ospeed);
132 cfgetispeed(const struct termios *t)
135 return (t->c_ispeed);
139 cfsetospeed(struct termios *t, speed_t speed)
147 cfsetispeed(struct termios *t, speed_t speed)
155 cfsetspeed(struct termios *t, speed_t speed)
158 t->c_ispeed = t->c_ospeed = speed;
163 * Make a pre-existing termios structure into "raw" mode: character-at-a-time
164 * mode with no characters interpreted, 8-bit data path.
167 cfmakeraw(struct termios *t)
170 t->c_iflag &= ~(IMAXBEL|IXOFF|INPCK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IGNPAR);
171 t->c_iflag |= IGNBRK;
172 t->c_oflag &= ~OPOST;
173 t->c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN|NOFLSH|TOSTOP|PENDIN);
174 t->c_cflag &= ~(CSIZE|PARENB);
175 t->c_cflag |= CS8|CREAD;
181 * Obtain a termios structure which is similar to the one provided by
185 cfmakesane(struct termios *t)
188 t->c_cflag = TTYDEF_CFLAG;
189 t->c_iflag = TTYDEF_IFLAG;
190 t->c_lflag = TTYDEF_LFLAG;
191 t->c_oflag = TTYDEF_OFLAG;
192 t->c_ispeed = TTYDEF_SPEED;
193 t->c_ospeed = TTYDEF_SPEED;
194 memcpy(&t->c_cc, ttydefchars, sizeof ttydefchars);
198 tcsendbreak(int fd, int len __unused)
200 struct timeval sleepytime;
202 sleepytime.tv_sec = 0;
203 sleepytime.tv_usec = 400000;
204 if (_ioctl(fd, TIOCSBRK, 0) == -1)
206 (void)_select(0, 0, 0, 0, &sleepytime);
207 if (_ioctl(fd, TIOCCBRK, 0) == -1)
213 __libc_tcdrain(int fd)
216 return (_ioctl(fd, TIOCDRAIN, 0));
224 return (((int (*)(int))
225 __libc_interposing[INTERPOS_tcdrain])(fd));
228 __weak_reference(__libc_tcdrain, __tcdrain);
229 __weak_reference(__libc_tcdrain, _tcdrain);
232 tcflush(int fd, int which)
244 com = FREAD | FWRITE;
250 return (_ioctl(fd, TIOCFLUSH, &com));
254 tcflow(int fd, int action)
261 return (_ioctl(fd, TIOCSTOP, 0));
263 return (_ioctl(fd, TIOCSTART, 0));
266 if (tcgetattr(fd, &term) == -1)
268 c = term.c_cc[action == TCIOFF ? VSTOP : VSTART];
269 if (c != _POSIX_VDISABLE && _write(fd, &c, sizeof(c)) == -1)