fstatfs64.c 2.1 KB

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  1. /* Return information about the filesystem on which FD resides.
  2. Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, see
  14. <http://www.gnu.org/licenses/>. */
  15. #include <_lfs_64.h>
  16. #include <errno.h>
  17. #include <string.h>
  18. #include <sys/statfs.h>
  19. #include <sys/statvfs.h>
  20. #include <sys/syscall.h>
  21. #include <stddef.h>
  22. #if defined __NR_fstatfs
  23. extern __typeof(fstatfs) __libc_fstatfs;
  24. /* Return information about the filesystem on which FD resides. */
  25. int fstatfs64 (int fd, struct statfs64 *buf)
  26. {
  27. struct statfs buf32;
  28. if (__libc_fstatfs (fd, &buf32) < 0)
  29. return -1;
  30. buf->f_type = buf32.f_type;
  31. buf->f_bsize = buf32.f_bsize;
  32. buf->f_blocks = buf32.f_blocks;
  33. buf->f_bfree = buf32.f_bfree;
  34. buf->f_bavail = buf32.f_bavail;
  35. buf->f_files = buf32.f_files;
  36. buf->f_ffree = buf32.f_ffree;
  37. buf->f_fsid = buf32.f_fsid;
  38. # ifdef _STATFS_F_FRSIZE
  39. buf->f_frsize = buf32.f_frsize;
  40. # endif
  41. buf->f_namelen = buf32.f_namelen;
  42. memcpy (buf->f_spare, buf32.f_spare, sizeof (buf32.f_spare));
  43. return 0;
  44. }
  45. #else
  46. /*
  47. * Use the fstatfs64 system call if fstatfs is not defined
  48. * This is for backwards compatibility and it should be
  49. * made default in the future
  50. */
  51. int fstatfs64(int fd, struct statfs64 *buf)
  52. {
  53. /* Signature has 2 arguments but syscalls wants 3 */
  54. return INLINE_SYSCALL(fstatfs64, 3, fd, sizeof(*buf), buf);
  55. }
  56. #endif
  57. libc_hidden_def(fstatfs64)