posix_fallocate64.c 786 B

12345678910111213141516171819202122232425262728
  1. /* vi: set sw=4 ts=4: */
  2. /*
  3. * posix_fallocate() for uClibc
  4. * http://www.opengroup.org/onlinepubs/9699919799/functions/posix_fallocate.html
  5. *
  6. * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
  7. *
  8. * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
  9. */
  10. #include <sys/syscall.h>
  11. #include <fcntl.h>
  12. #include <bits/kernel-features.h>
  13. #include <stdint.h>
  14. #if defined __NR_fallocate
  15. # if __WORDSIZE == 64
  16. /* Can use normal posix_fallocate() */
  17. # elif __WORDSIZE == 32
  18. extern __typeof(fallocate64) __libc_fallocate64 attribute_hidden;
  19. int posix_fallocate64(int fd, __off64_t offset, __off64_t len)
  20. {
  21. return __libc_fallocate64(fd, 0, offset, len);
  22. }
  23. # else
  24. # error your machine is neither 32 bit or 64 bit ... it must be magical
  25. # endif
  26. #endif