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stty.c revision 1.3 
      1  1.1    cgd /*
      2  1.1    cgd  * Copyright (c) 1994 Christopher G. Demetriou
      3  1.1    cgd  * All rights reserved.
      4  1.1    cgd  *
      5  1.1    cgd  * Redistribution and use in source and binary forms, with or without
      6  1.1    cgd  * modification, are permitted provided that the following conditions
      7  1.1    cgd  * are met:
      8  1.1    cgd  * 1. Redistributions of source code must retain the above copyright
      9  1.1    cgd  *    notice, this list of conditions and the following disclaimer.
     10  1.1    cgd  * 2. Redistributions in binary form must reproduce the above copyright
     11  1.1    cgd  *    notice, this list of conditions and the following disclaimer in the
     12  1.1    cgd  *    documentation and/or other materials provided with the distribution.
     13  1.1    cgd  * 3. All advertising materials mentioning features or use of this software
     14  1.1    cgd  *    must display the following acknowledgement:
     15  1.1    cgd  *      This product includes software developed by Christopher G. Demetriou.
     16  1.1    cgd  * 4. The name of the author may not be used to endorse or promote products
     17  1.1    cgd  *    derived from this software without specific prior written permission
     18  1.1    cgd  *
     19  1.1    cgd  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     20  1.1    cgd  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     21  1.1    cgd  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     22  1.1    cgd  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     23  1.1    cgd  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     24  1.1    cgd  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  1.1    cgd  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  1.1    cgd  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  1.1    cgd  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     28  1.1    cgd  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  1.1    cgd  */
     30  1.1    cgd 
     31  1.2  lukem #include <sys/cdefs.h>
     32  1.1    cgd #ifndef lint
     33  1.3  lukem __RCSID("$NetBSD: stty.c,v 1.3 1999/09/16 11:45:46 lukem Exp $");
     34  1.1    cgd #endif /* not lint */
     35  1.1    cgd 
     36  1.3  lukem #include <assert.h>
     37  1.3  lukem #include <errno.h>
     38  1.1    cgd #include <sgtty.h>
     39  1.1    cgd 
     40  1.1    cgd /*
     41  1.1    cgd  * Set tty modes.
     42  1.1    cgd  * This was defined in ioctl_compat.h as:
     43  1.1    cgd  *	#define	stty(fd, tty)	ioctl(fd, TIOCSETP, tty)
     44  1.1    cgd  */
     45  1.1    cgd int
     46  1.1    cgd stty(fd, tty)
     47  1.1    cgd 	int fd;
     48  1.1    cgd 	struct sgttyb *tty;
     49  1.1    cgd {
     50  1.3  lukem 
     51  1.3  lukem 	_DIAGASSERT(fd != -1);
     52  1.3  lukem 	_DIAGASSERT(tty != 0);
     53  1.3  lukem #ifdef _DIAGNOSTIC
     54  1.3  lukem 	if (fd == -1) {
     55  1.3  lukem 		errno = EBADF;
     56  1.3  lukem 		return (-1);
     57  1.3  lukem 	}
     58  1.3  lukem 	if (tty == 0) {
     59  1.3  lukem 		errno = EINVAL;
     60  1.3  lukem 		return (-1);
     61  1.3  lukem 	}
     62  1.3  lukem #endif
     63  1.1    cgd 
     64  1.1    cgd 	return (ioctl(fd, TIOCSETP, tty));
     65  1.1    cgd }
     66