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 46 struct 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