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[glibc.git] / misc / sys / ioctl.h
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1 /* Copyright (C) 1991, 92, 93, 94, 96, 98, 99 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17 02111-1307 USA. */
19 #ifndef _SYS_IOCTL_H
20 #define _SYS_IOCTL_H 1
22 #include <features.h>
24 __BEGIN_DECLS
26 /* Get the list of `ioctl' requests and related constants. */
27 #include <bits/ioctls.h>
29 /* Define some types used by `ioctl' requests. */
30 #include <bits/ioctl-types.h>
32 /* On a Unix system, the system <sys/ioctl.h> probably defines some of
33 the symbols we define in <sys/ttydefaults.h> (usually with the same
34 values). The code to generate <bits/ioctls.h> has omitted these
35 symbols to avoid the conflict, but a Unix program expects <sys/ioctl.h>
36 to define them, so we must include <sys/ttydefaults.h> here. */
37 #include <sys/ttydefaults.h>
39 /* Perform the I/O control operation specified by REQUEST on FD.
40 One argument may follow; its presence and type depend on REQUEST.
41 Return value depends on REQUEST. Usually -1 indicates error. */
42 extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;
44 __END_DECLS
46 #endif /* sys/ioctl.h */