1 /* $NetBSD: tcsetattr.c,v 1.7 2000/01/22 22:19:21 mycroft Exp $ */ 2 3 /*- 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #if defined(LIBC_SCCS) && !defined(lint) 38 #if 0 39 static char sccsid[] = "@(#)termios.c 8.2 (Berkeley) 2/21/94"; 40 #else 41 __RCSID("$NetBSD: tcsetattr.c,v 1.7 2000/01/22 22:19:21 mycroft Exp $"); 42 #endif 43 #endif /* LIBC_SCCS and not lint */ 44 45 #include "namespace.h" 46 #include <sys/ioctl.h> 47 48 #include <assert.h> 49 #include <errno.h> 50 #include <stdio.h> 51 #include <termios.h> 52 53 #ifdef __weak_alias 54 __weak_alias(tcsetattr,_tcsetattr) 55 #endif 56 57 int 58 tcsetattr(fd, opt, t) 59 int fd, opt; 60 const struct termios *t; 61 { 62 struct termios localterm; 63 64 _DIAGASSERT(fd != -1); 65 _DIAGASSERT(t != NULL); 66 67 if (opt & TCSASOFT) { 68 localterm = *t; 69 localterm.c_cflag |= CIGNORE; 70 t = &localterm; 71 } 72 switch (opt & ~TCSASOFT) { 73 case TCSANOW: 74 return (ioctl(fd, TIOCSETA, t)); 75 case TCSADRAIN: 76 return (ioctl(fd, TIOCSETAW, t)); 77 case TCSAFLUSH: 78 return (ioctl(fd, TIOCSETAF, t)); 79 default: 80 errno = EINVAL; 81 return (-1); 82 } 83 } 84