1/*-
2 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	@(#)socket.h	8.4 (Berkeley) 2/21/94
30 * $FreeBSD$
31 */
32
33#ifndef _SYS__SOCKADDR_STORAGE_H_
34#define	_SYS__SOCKADDR_STORAGE_H_
35
36/*
37 * RFC 2553: protocol-independent placeholder for socket addresses
38 */
39#define	_SS_MAXSIZE	128U
40#define	_SS_ALIGNSIZE	(sizeof(__int64_t))
41#define	_SS_PAD1SIZE	(_SS_ALIGNSIZE - sizeof(unsigned char) - \
42			    sizeof(sa_family_t))
43#define	_SS_PAD2SIZE	(_SS_MAXSIZE - sizeof(unsigned char) - \
44			    sizeof(sa_family_t) - _SS_PAD1SIZE - _SS_ALIGNSIZE)
45
46struct sockaddr_storage {
47	unsigned char	ss_len;		/* address length */
48	sa_family_t	ss_family;	/* address family */
49	char		__ss_pad1[_SS_PAD1SIZE];
50	__int64_t	__ss_align;	/* force desired struct alignment */
51	char		__ss_pad2[_SS_PAD2SIZE];
52};
53
54#endif /* !_SYS__SOCKADDR_STORAGE_H_ */
55