1 /* $OpenBSD: tcsetattr.c,v 1.6 2015/09/13 11:51:36 guenther Exp $ */
2 /*-
3 * Copyright (c) 1989, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #include <sys/ioctl.h>
32 #include <termios.h>
33 #include <errno.h>
34
35 int
tcsetattr(int fd,int opt,const struct termios * t)36 tcsetattr(int fd, int opt, const struct termios *t)
37 {
38 struct termios localterm;
39
40 if (opt & TCSASOFT) {
41 localterm = *t;
42 localterm.c_cflag |= CIGNORE;
43 t = &localterm;
44 }
45 switch (opt & ~TCSASOFT) {
46 case TCSANOW:
47 return (ioctl(fd, TIOCSETA, t));
48 case TCSADRAIN:
49 return (ioctl(fd, TIOCSETAW, t));
50 case TCSAFLUSH:
51 return (ioctl(fd, TIOCSETAF, t));
52 default:
53 errno = EINVAL;
54 return (-1);
55 }
56 }
57 DEF_WEAK(tcsetattr);
58