bits/sockaddr.h

   1 /* Definition of `struct sockaddr_*' common members.  Generic/4.2 BSD version.
   2    Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 /*
  21  * Never include this file directly; use <sys/socket.h> instead.
  22  */
  23
  24 #ifndef _BITS_SOCKADDR_H
  25 #define _BITS_SOCKADDR_H        1
  26
  27
  28 /* POSIX.1g specifies this type name for the `sa_family' member.  */
  29 typedef unsigned short int sa_family_t;
  30
  31 /* This macro is used to declare the initial common members
  32    of the data types used for socket addresses, `struct sockaddr',
  33    `struct sockaddr_in', `struct sockaddr_un', etc.  */
  34
  35 #define __SOCKADDR_COMMON(sa_prefix) \
  36   sa_family_t sa_prefix##family
  37
  38 #define __SOCKADDR_COMMON_SIZE  (sizeof (unsigned short int))
  39
  40 /* Return the length of a `sockaddr' structure.  */
  41 #define SA_LEN(_x)      __libc_sa_len((_x)->sa_family)
  42 extern int __libc_sa_len (sa_family_t __af) __THROW;
  43
  44 #endif  /* bits/sockaddr.h */