ioctl.c 1.8 KB

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  1. /* Copyright (C) 1998 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. #include <stdarg.h>
  15. #include <termios.h>
  16. #include <unistd.h>
  17. #include <sys/ioctl.h>
  18. #include <sys/syscall.h>
  19. /* The user-visible size of struct termios has changed. Catch ioctl calls
  20. using the new-style struct termios, and translate them to old-style. */
  21. #define __NR___syscall_ioctl __NR_ioctl
  22. static __always_inline
  23. _syscall3(int, __syscall_ioctl, int, fd, unsigned long int, request, void *, arg)
  24. int ioctl (int fd, unsigned long int request, ...)
  25. {
  26. void *arg;
  27. va_list ap;
  28. int result;
  29. va_start (ap, request);
  30. arg = va_arg (ap, void *);
  31. switch (request)
  32. {
  33. case TCGETS:
  34. result = tcgetattr (fd, (struct termios *) arg);
  35. break;
  36. case TCSETS:
  37. result = tcsetattr (fd, TCSANOW, (struct termios *) arg);
  38. break;
  39. case TCSETSW:
  40. result = tcsetattr (fd, TCSADRAIN, (struct termios *) arg);
  41. break;
  42. case TCSETSF:
  43. result = tcsetattr (fd, TCSAFLUSH, (struct termios *) arg);
  44. break;
  45. default:
  46. result = __syscall_ioctl (fd, request, arg);
  47. break;
  48. }
  49. va_end (ap);
  50. return result;
  51. }
  52. libc_hidden_def(ioctl)