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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley 4.3 BSD
* under license from the Regents of the University of California.
*/
#ifndef _SYS_SOCKET_IMPL_H
#define _SYS_SOCKET_IMPL_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _SA_FAMILY_T
#define _SA_FAMILY_T
typedef uint16_t sa_family_t;
#endif
/*
* Structure used by kernel to store most
* addresses.
*/
struct sockaddr {
sa_family_t sa_family; /* address family */
char sa_data[14]; /* up to 14 bytes of direct address */
};
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
#include <sys/un.h>
#include <net/if_dl.h>
#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
#if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
/*
* sockaddr_storage:
* Common superset of at least AF_INET, AF_INET6 and AF_LINK sockaddr
* structures. Has sufficient size and alignment for those sockaddrs.
*/
/*
* Desired maximum size, alignment size and related types.
*/
#define _SS_MAXSIZE 256 /* Implementation specific max size */
/*
* To represent desired sockaddr max alignment for platform, a
* type is chosen which may depend on implementation platform architecture.
* Type chosen based on alignment size restrictions from <sys/isa_defs.h>.
* We desire to force up to (but no more than) 64-bit (8 byte) alignment,
* on platforms where it is possible to do so. (e.g not possible on ia32).
* For all currently supported platforms by our implementation
* in <sys/isa_defs.h>, (i.e. sparc, sparcv9, ia32, ia64)
* type "double" is suitable for that intent.
*
* Note: Type "double" is chosen over the more obvious integer type int64_t.
* int64_t is not a valid type for strict ANSI/ISO C compilation on ILP32.
*/
typedef double sockaddr_maxalign_t;
#define _SS_ALIGNSIZE (sizeof (sockaddr_maxalign_t))
/*
* Definitions used for sockaddr_storage structure paddings design.
*/
#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof (sa_family_t))
#define _SS_PAD2SIZE (_SS_MAXSIZE - (sizeof (sa_family_t)+ \
_SS_PAD1SIZE + _SS_ALIGNSIZE))
struct sockaddr_storage {
sa_family_t ss_family; /* Address family */
/* Following fields are implementation specific */
char _ss_pad1[_SS_PAD1SIZE];
sockaddr_maxalign_t _ss_align;
char _ss_pad2[_SS_PAD2SIZE];
};
#endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_SOCKET_IMPL_H */
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