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