ioctl.h 1.7 KB

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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.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the 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. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, see
  13. <http://www.gnu.org/licenses/>. */
  14. #ifndef _SYS_IOCTL_H
  15. #define _SYS_IOCTL_H 1
  16. #include <features.h>
  17. __BEGIN_DECLS
  18. /* Get the list of `ioctl' requests and related constants. */
  19. #include <bits/ioctls.h>
  20. /* Define some types used by `ioctl' requests. */
  21. #include <bits/ioctl-types.h>
  22. /* On a Unix system, the system <sys/ioctl.h> probably defines some of
  23. the symbols we define in <sys/ttydefaults.h> (usually with the same
  24. values). The code to generate <bits/ioctls.h> has omitted these
  25. symbols to avoid the conflict, but a Unix program expects <sys/ioctl.h>
  26. to define them, so we must include <sys/ttydefaults.h> here. */
  27. #include <sys/ttydefaults.h>
  28. /* Perform the I/O control operation specified by REQUEST on FD.
  29. One argument may follow; its presence and type depend on REQUEST.
  30. Return value depends on REQUEST. Usually -1 indicates error. */
  31. extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;
  32. libc_hidden_proto(ioctl)
  33. __END_DECLS
  34. #endif /* sys/ioctl.h */