1 /* Definition of struct sockaddr_* common members and sizes, BSD version. 2 Copyright (C) 1995-2021 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 */ 46