ioctl.h 2.0 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455
  1. /* Copyright (C) 1991-2026 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. <https://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. #ifndef __USE_TIME64_REDIRECTS
  32. extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;
  33. #else
  34. # ifdef __REDIRECT
  35. extern int __REDIRECT_NTH (ioctl, (int __fd, unsigned long int __request, ...),
  36. __ioctl_time64);
  37. # else
  38. extern int __ioctl_time64 (int __fd, unsigned long int __request, ...) __THROW;
  39. # define ioctl __ioctl_time64
  40. # endif
  41. #endif
  42. __END_DECLS
  43. #endif /* sys/ioctl.h */