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/* 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., 675 Mass Ave,
Cambridge, MA 02139, 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>
/* 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>
#if defined(TIOCGETC) || defined(TIOCSETC)
/* Type of ARG for TIOCGETC and TIOCSETC requests. */
struct tchars
{
char t_intrc; /* Interrupt character. */
char t_quitc; /* Quit character. */
char t_startc; /* Start-output character. */
char t_stopc; /* Stop-output character. */
char t_eofc; /* End-of-file character. */
char t_brkc; /* Input delimiter character. */
};
#define _IOT_tchars /* Hurd ioctl type field. */ \
_IOT (_IOTS (char), 6, 0, 0, 0, 0)
#endif
#if defined(TIOCGLTC) || defined(TIOCSLTC)
/* Type of ARG for TIOCGLTC and TIOCSLTC requests. */
struct ltchars
{
char t_suspc; /* Suspend character. */
char t_dsuspc; /* Delayed suspend character. */
char t_rprntc; /* Reprint-line character. */
char t_flushc; /* Flush-output character. */
char t_werasc; /* Word-erase character. */
char t_lnextc; /* Literal-next character. */
};
#define _IOT_ltchars /* Hurd ioctl type field. */ \
_IOT (_IOTS (char), 6, 0, 0, 0, 0)
#endif
/* Type of ARG for TIOCGETP and TIOCSETP requests (and gtty and stty). */
struct sgttyb
{
char sg_ispeed; /* Input speed. */
char sg_ospeed; /* Output speed. */
char sg_erase; /* Erase character. */
char sg_kill; /* Kill character. */
short int sg_flags; /* Mode flags. */
};
#define _IOT_sgttyb /* Hurd ioctl type field. */ \
_IOT (_IOTS (char), 6, _IOTS (short int), 1, 0, 0)
#if defined(TIOCGWINSZ) || defined(TIOCSWINSZ)
/* Type of ARG for TIOCGWINSZ and TIOCSWINSZ requests. */
struct winsize
{
unsigned short int ws_row; /* Rows, in characters. */
unsigned short int ws_col; /* Columns, in characters. */
/* These are not actually used. */
unsigned short int ws_xpixel; /* Horizontal pixels. */
unsigned short int ws_ypixel; /* Vertical pixels. */
};
#define _IOT_winsize /* Hurd ioctl type field. */ \
_IOT (_IOTS (unsigned short int), 4, 0, 0, 0, 0)
#endif
#if defined (TIOCGSIZE) || defined (TIOCSSIZE)
# if defined (TIOCGWINSZ) && TIOCGSIZE == TIOCGWINSZ
/* Many systems that have TIOCGWINSZ define TIOCGSIZE for source
compatibility with Sun; they define `struct ttysize' to have identical
layout as `struct winsize' and #define TIOCGSIZE to be TIOCGWINSZ
(likewise TIOCSSIZE and TIOCSWINSZ). */
struct ttysize
{
unsigned short int ts_lines;
unsigned short int ts_cols;
unsigned short int ts_xxx;
unsigned short int ts_yyy;
};
#define _IOT_ttysize _IOT_winsize
# else
/* Suns use a different layout for `struct ttysize', and TIOCGSIZE and
TIOCGWINSZ are separate commands that do the same thing with different
structures (likewise TIOCSSIZE and TIOCSWINSZ). */
struct ttysize
{
int ts_lines, ts_cols; /* Lines and columns, in characters. */
};
# endif
#endif
/* 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 */
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