xsendto.c 1.3 KB

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  1. /* sendto with error checking.
  2. Copyright (C) 2016-2019 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/xsocket.h>
  16. #include <stdio.h>
  17. #include <stdlib.h>
  18. #include <support/check.h>
  19. void
  20. xsendto (int fd, const void *buf, size_t buflen, int flags,
  21. const struct sockaddr *sa, socklen_t salen)
  22. {
  23. ssize_t ret = sendto (fd, buf, buflen, flags, sa, salen);
  24. if (ret < 0)
  25. FAIL_EXIT1 ("sendto (%d), %zu bytes, family %d: %m",
  26. fd, buflen, sa->sa_family);
  27. if (ret != buflen)
  28. FAIL_EXIT1 ("sendto (%d) sent %zd bytes instead of %zu", fd, ret, buflen);
  29. }