glibc/misc/sys/ioctl.h
1996-11-15 04:08:00 +00:00

48 lines
1.9 KiB
C

/* Copyright (C) 1991, 92, 93, 94, 96 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _SYS_IOCTL_H
#define _SYS_IOCTL_H 1
#include <features.h>
__BEGIN_DECLS
/* Get the list of `ioctl' requests and related constants. */
#include <ioctls.h>
/* Define some types used by `ioctl' requests. */
#include <ioctl-types.h>
/* On a Unix system, the system <sys/ioctl.h> probably defines some of the
symbols we define in <sys/ttydefaults.h> (usually with the same values).
The code to generate <ioctls.h> has omitted these symbols to avoid the
conflict, but a Unix program expects <sys/ioctl.h> to define them, so we
must include <sys/ttydefaults.h> here. */
#include <sys/ttydefaults.h>
/* Perform the I/O control operation specified by REQUEST on FD.
One argument may follow; its presence and type depend on REQUEST.
Return value depends on REQUEST. Usually -1 indicates error. */
extern int __ioctl __P ((int __fd, unsigned long int __request, ...));
extern int ioctl __P ((int __fd, unsigned long int __request, ...));
__END_DECLS
#endif /* sys/ioctl.h */