1 /* Copyright (C) 1991, 92, 93, 94, 96, 98, 99 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, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 #ifndef _SYS_IOCTL_H 20 #define _SYS_IOCTL_H 1 21 22 #include <features.h> 23 24 __BEGIN_DECLS 25 26 /* Get the list of `ioctl' requests and related constants. */ 27 #include <bits/ioctls.h> 28 29 /* Define some types used by `ioctl' requests. */ 30 #include <bits/ioctl-types.h> 31 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> 38 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; 43 44 __END_DECLS 45 46 #endif /* sys/ioctl.h */ 47