ioctl.c 2.0 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, write to the Free
  13. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  14. 02111-1307 USA. */
  15. #include <stdarg.h>
  16. #include <termios.h>
  17. #include <unistd.h>
  18. #include <sys/ioctl.h>
  19. #include <sys/syscall.h>
  20. libc_hidden_proto(ioctl)
  21. libc_hidden_proto(tcsetattr)
  22. libc_hidden_proto(tcgetattr)
  23. /* The user-visible size of struct termios has changed. Catch ioctl calls
  24. using the new-style struct termios, and translate them to old-style. */
  25. #define __NR___syscall_ioctl __NR_ioctl
  26. static inline
  27. _syscall3(int, __syscall_ioctl, int, fd, unsigned long int, request, void *, arg);
  28. int ioctl (int fd, unsigned long int request, ...)
  29. {
  30. void *arg;
  31. va_list ap;
  32. int result;
  33. va_start (ap, request);
  34. arg = va_arg (ap, void *);
  35. switch (request)
  36. {
  37. case TCGETS:
  38. result = tcgetattr (fd, (struct termios *) arg);
  39. break;
  40. case TCSETS:
  41. result = tcsetattr (fd, TCSANOW, (struct termios *) arg);
  42. break;
  43. case TCSETSW:
  44. result = tcsetattr (fd, TCSADRAIN, (struct termios *) arg);
  45. break;
  46. case TCSETSF:
  47. result = tcsetattr (fd, TCSAFLUSH, (struct termios *) arg);
  48. break;
  49. default:
  50. result = __syscall_ioctl (fd, request, arg);
  51. break;
  52. }
  53. va_end (ap);
  54. return result;
  55. }
  56. libc_hidden_def(ioctl)