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       1             : /* Copyright (C) 1991-2022 Free Software Foundation, Inc.
       2             :    This file is part of the GNU C Library.
       3             : 
       4             :    The GNU C Library is free software; you can redistribute it and/or
       5             :    modify it under the terms of the GNU Lesser General Public
       6             :    License as published by the Free Software Foundation; either
       7             :    version 2.1 of the License, or (at your option) any later version.
       8             : 
       9             :    The GNU C Library is distributed in the hope that it will be useful,
      10             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12             :    Lesser General Public License for more details.
      13             : 
      14             :    You should have received a copy of the GNU Lesser General Public
      15             :    License along with the GNU C Library; if not, see
      16             :    <https://www.gnu.org/licenses/>.  */
      17             : 
      18             : #ifndef _SYS_IOCTL_H
      19             : #define _SYS_IOCTL_H    1
      20             : 
      21             : #include <features.h>
      22             : 
      23             : __BEGIN_DECLS
      24             : 
      25             : /* Get the list of `ioctl' requests and related constants.  */
      26             : #include <bits/ioctls.h>
      27             : 
      28             : /* Define some types used by `ioctl' requests.  */
      29             : #include <bits/ioctl-types.h>
      30             : 
      31             : /* On a Unix system, the system <sys/ioctl.h> probably defines some of
      32             :    the symbols we define in <sys/ttydefaults.h> (usually with the same
      33             :    values).  The code to generate <bits/ioctls.h> has omitted these
      34             :    symbols to avoid the conflict, but a Unix program expects <sys/ioctl.h>
      35             :    to define them, so we must include <sys/ttydefaults.h> here.  */
      36             : #include <sys/ttydefaults.h>
      37             : 
      38             : /* Perform the I/O control operation specified by REQUEST on FD.
      39             :    One argument may follow; its presence and type depend on REQUEST.
      40             :    Return value depends on REQUEST.  Usually -1 indicates error.  */
      41             : #ifndef __USE_TIME_BITS64
      42     2259371 : extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;
      43             : #else
      44             : # ifdef __REDIRECT
      45             : extern int __REDIRECT_NTH (ioctl, (int __fd, unsigned long int __request, ...),
      46             :                            __ioctl_time64);
      47             : # else
      48             : extern int __ioctl_time64 (int __fd, unsigned long int __request, ...) __THROW;
      49             : #  define ioctl __ioctl_time64
      50             : # endif
      51             : #endif
      52             : 
      53             : __END_DECLS
      54             : 
      55             : #endif /* sys/ioctl.h */