ioctl.h 1.8 KB

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  1. /* Copyright (C) 1991, 92, 93, 94, 96, 98 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Library General Public License as
  5. published by the Free Software Foundation; either version 2 of the
  6. License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Library General Public License for more details.
  11. You should have received a copy of the GNU Library General Public
  12. License along with the GNU C Library; see the file COPYING.LIB. If not,
  13. write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  14. Boston, MA 02111-1307, USA. */
  15. #ifndef _SYS_IOCTL_H
  16. #define _SYS_IOCTL_H 1
  17. #include <features.h>
  18. __BEGIN_DECLS
  19. /* Get the list of `ioctl' requests and related constants. */
  20. #include <bits/ioctls.h>
  21. /* Define some types used by `ioctl' requests. */
  22. #include <bits/ioctl-types.h>
  23. /* On a Unix system, the system <sys/ioctl.h> probably defines some of
  24. the symbols we define in <sys/ttydefaults.h> (usually with the same
  25. values). The code to generate <bits/ioctls.h> has omitted these
  26. symbols to avoid the conflict, but a Unix program expects <sys/ioctl.h>
  27. to define them, so we must include <sys/ttydefaults.h> here. */
  28. #include <sys/ttydefaults.h>
  29. /* Perform the I/O control operation specified by REQUEST on FD.
  30. One argument may follow; its presence and type depend on REQUEST.
  31. Return value depends on REQUEST. Usually -1 indicates error. */
  32. extern int ioctl __P ((int __fd, unsigned long int __request, ...));
  33. __END_DECLS
  34. #endif /* sys/ioctl.h */