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      1 /*	$NetBSD: cfmakeraw.c,v 1.10 2012/06/25 22:32:46 abs 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. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #if defined(LIBC_SCCS) && !defined(lint)
     34 #if 0
     35 static char sccsid[] = "@(#)termios.c	8.2 (Berkeley) 2/21/94";
     36 #else
     37 __RCSID("$NetBSD: cfmakeraw.c,v 1.10 2012/06/25 22:32:46 abs Exp $");
     38 #endif
     39 #endif /* LIBC_SCCS and not lint */
     40 
     41 #include "namespace.h"
     42 
     43 #include <assert.h>
     44 #include <stdio.h>
     45 #include <termios.h>
     46 
     47 #ifdef __weak_alias
     48 __weak_alias(cfmakeraw,_cfmakeraw)
     49 #endif
     50 
     51 /*
     52  * Make a pre-existing termios structure into "raw" mode: character-at-a-time
     53  * mode with no characters interpreted, 8-bit data path.
     54  */
     55 void
     56 cfmakeraw(struct termios *t)
     57 {
     58 
     59 	_DIAGASSERT(t != NULL);
     60 
     61 	t->c_iflag &= ~(IMAXBEL|IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
     62 	t->c_oflag &= ~OPOST;
     63 	t->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
     64 	t->c_cflag &= ~(CSIZE|PARENB);
     65 	t->c_cflag |= CS8;
     66 	/* XXX set MIN/TIME */
     67 }
     68