usr/src/lib/libc/port/gen/tcsendbreak.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #pragma weak _tcsendbreak = tcsendbreak
  33
  34 #include "lint.h"
  35 #include <sys/types.h>
  36 #include <sys/termios.h>
  37 #include <unistd.h>
  38
  39 /*
  40  * send zeros for 0.25 seconds, if duration is 0
  41  * If duration is not 0, ioctl(fildes, TCSBRK, 0) is used also to
  42  * make sure that a break is sent. This is for POSIX compliance.
  43  */
  44
  45 /*ARGSUSED*/
  46 int
  47 tcsendbreak(int fildes, int duration)
  48 {
  49         return (ioctl(fildes, TCSBRK, duration));
  50 }