preadv.c 1.3 KB

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  1. /* Copyright (C) 2009-2019 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 <errno.h>
  15. #include <unistd.h>
  16. #include <sys/uio.h>
  17. /* Read data from file descriptor FD at the given position OFFSET
  18. without change the file pointer, and put the result in the buffers
  19. described by VECTOR, which is a vector of COUNT 'struct iovec's.
  20. The buffers are filled in the order specified. Operates just like
  21. 'pread' (see <unistd.h>) except that data are put in VECTOR instead
  22. of a contiguous buffer. */
  23. ssize_t
  24. preadv (int fd, const struct iovec *vector, int count, off_t offset)
  25. {
  26. __set_errno (ENOSYS);
  27. return -1;
  28. }
  29. stub_warning (preadv)