sockaddr.h 1.6 KB

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  1. /* Definition of struct sockaddr_* common members and sizes, BSD version.
  2. Copyright (C) 1995-2019 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. /*
  16. * Never include this file directly; use <sys/socket.h> instead.
  17. */
  18. #ifndef _BITS_SOCKADDR_H
  19. #define _BITS_SOCKADDR_H 1
  20. /* POSIX.1g specifies this type name for the `sa_family' member. */
  21. typedef unsigned char sa_family_t;
  22. /* This macro is used to declare the initial common members
  23. of the data types used for socket addresses, `struct sockaddr',
  24. `struct sockaddr_in', `struct sockaddr_un', etc. */
  25. #define __SOCKADDR_COMMON(sa_prefix) \
  26. unsigned char sa_prefix##len; \
  27. sa_family_t sa_prefix##family
  28. #define __SOCKADDR_COMMON_SIZE (2 * sizeof (unsigned char))
  29. #define _HAVE_SA_LEN 1 /* We have the sa_len field. */
  30. /* Size of struct sockaddr_storage. */
  31. #define _SS_SIZE 128
  32. #endif /* bits/sockaddr.h */