minix/lib/libc/termios/tcsetattr.c

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/* $NetBSD: tcsetattr.c,v 1.9 2012/06/25 22:32:46 abs Exp $ */
/*-
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)termios.c 8.2 (Berkeley) 2/21/94";
#else
__RCSID("$NetBSD: tcsetattr.c,v 1.9 2012/06/25 22:32:46 abs Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#include <sys/ioctl.h>
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <termios.h>
#ifdef __weak_alias
__weak_alias(tcsetattr,_tcsetattr)
#endif
int
tcsetattr(int fd, int opt, const struct termios *t)
{
struct termios localterm;
_DIAGASSERT(fd != -1);
_DIAGASSERT(t != NULL);
if (opt & TCSASOFT) {
localterm = *t;
localterm.c_cflag |= CIGNORE;
t = &localterm;
}
switch (opt & ~TCSASOFT) {
case TCSANOW:
return (ioctl(fd, TIOCSETA, __UNCONST(t)));
case TCSADRAIN:
return (ioctl(fd, TIOCSETAW, __UNCONST(t)));
case TCSAFLUSH:
return (ioctl(fd, TIOCSETAF, __UNCONST(t)));
default:
errno = EINVAL;
return (-1);
}
}