mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-18 19:10:06 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* Copyright (C) 1991, 1992, 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. */
|
|
|
|
#include <errno.h>
|
|
#include <stddef.h>
|
|
#include <signal.h>
|
|
#include <termios.h>
|
|
#include <unistd.h>
|
|
#include "bsdtty.h"
|
|
#include <sys/file.h>
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
|
|
/* Send zero bits on FD. */
|
|
int
|
|
tcsendbreak (fd, duration)
|
|
int fd;
|
|
int duration;
|
|
{
|
|
struct timeval delay;
|
|
|
|
/* 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 microseconds to break. */
|
|
if (duration <= 0)
|
|
duration = 400000;
|
|
|
|
delay.tv_sec = 0;
|
|
delay.tv_usec = duration;
|
|
|
|
/* Starting sending break. */
|
|
if (__ioctl (fd, TIOCSBRK, (void *) NULL) < 0)
|
|
return -1;
|
|
|
|
/* Wait DURATION microseconds. */
|
|
(void) __select (0, (fd_set *) NULL, (fd_set *) NULL, (fd_set *) NULL,
|
|
&delay);
|
|
|
|
/* Turn off the break. */
|
|
return __ioctl (fd, TIOCCBRK, (void *) NULL);
|
|
}
|