1  /* Definition of struct sockaddr_* common members and sizes, BSD version.
       2     Copyright (C) 1995-2023 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 Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the 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     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  /*
      20   * Never include this file directly; use <sys/socket.h> instead.
      21   */
      22  
      23  #ifndef _BITS_SOCKADDR_H
      24  #define _BITS_SOCKADDR_H	1
      25  
      26  
      27  /* POSIX.1g specifies this type name for the `sa_family' member.  */
      28  typedef unsigned char sa_family_t;
      29  
      30  /* This macro is used to declare the initial common members
      31     of the data types used for socket addresses, `struct sockaddr',
      32     `struct sockaddr_in', `struct sockaddr_un', etc.  */
      33  
      34  #define	__SOCKADDR_COMMON(sa_prefix)	\
      35    unsigned char sa_prefix##len;		\
      36    sa_family_t sa_prefix##family
      37  
      38  #define __SOCKADDR_COMMON_SIZE	(2 * sizeof (unsigned char))
      39  
      40  #define _HAVE_SA_LEN	1	/* We have the sa_len field.  */
      41  
      42  /* Size of struct sockaddr_storage.  */
      43  #define _SS_SIZE 128
      44  
      45  #endif	/* bits/sockaddr.h */