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 45 struct 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