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/* Copyright (C) 1992, 1996, 1997 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

/* Modified for newlib, May 27, 2002, by Jeff Johnston */

#include <errno.h>

#include <stddef.h>

#include <signal.h>

#include <termios.h>

#include <unistd.h>

#include <sys/ioctl.h>

/* Send zero bits on FD.  */

int

tcsendbreak (fd, duration)

     int fd;

     int duration;

{

  /* The break lasts 0.25 to 0.5 seconds if DURATION is zero,

     and an implementation-defined period if DURATION is nonzero.

     We define a positive DURATION to be number of milliseconds to break.  */

  if (duration <= 0)

    return ioctl (fd, TCSBRK, 0);

  /* ioctl can't send a break of any other duration for us.

     This could be changed to use trickery (e.g. lower speed and

     send a '\0') to send the break, but for now just return an error.  */

  errno = (EINVAL);

  return -1;

}