xlseek.c 1.1 KB

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  1. /* lseek with error checking.
  2. Copyright (C) 2017-2019 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 <support/check.h>
  16. #include <support/xunistd.h>
  17. long long
  18. xlseek (int fd, long long offset, int whence)
  19. {
  20. long long result = lseek64 (fd, offset, whence);
  21. if (result < 0)
  22. FAIL_EXIT1 ("lseek64 (%d, %lld, %d): %m", fd, offset, whence);
  23. return result;
  24. }