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/* $NetBSD: socket.h,v 1.117 2015/04/03 20:01:08 rtr Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
|
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* 2. Redistributions in binary form must reproduce the above copyright
|
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* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)socket.h 8.6 (Berkeley) 5/3/95
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*/
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#ifndef _SYS_SOCKET_H_
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#define _SYS_SOCKET_H_
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#include <sys/featuretest.h> |
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/*
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* Definitions related to sockets: types, address families, options.
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*/
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/*
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* Data types.
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*/
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#include <sys/ansi.h> |
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#ifndef sa_family_t
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typedef __sa_family_t sa_family_t;
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#define sa_family_t __sa_family_t
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#endif
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#ifndef socklen_t
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typedef __socklen_t socklen_t;
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#define socklen_t __socklen_t
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#endif
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#include <machine/ansi.h> |
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#ifdef _BSD_SIZE_T_
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typedef _BSD_SIZE_T_ size_t;
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#undef _BSD_SIZE_T_
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#endif
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#ifdef _BSD_SSIZE_T_
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typedef _BSD_SSIZE_T_ ssize_t;
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#undef _BSD_SSIZE_T_
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#endif
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#include <sys/uio.h> |
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#include <sys/sigtypes.h> |
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/*
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* Socket types.
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*/
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#define SOCK_STREAM 1 /* stream socket */ |
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#define SOCK_DGRAM 2 /* datagram socket */ |
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#define SOCK_RAW 3 /* raw-protocol interface */ |
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#define SOCK_RDM 4 /* reliably-delivered message */ |
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#define SOCK_SEQPACKET 5 /* sequenced packet stream */ |
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#define SOCK_CONN_DGRAM 6 /* connection-orientated datagram */ |
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#define SOCK_DCCP SOCK_CONN_DGRAM
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#define SOCK_CLOEXEC 0x10000000 /* set close on exec on socket */ |
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#define SOCK_NONBLOCK 0x20000000 /* set non blocking i/o socket */ |
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#define SOCK_NOSIGPIPE 0x40000000 /* don't send sigpipe */ |
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#define SOCK_FLAGS_MASK 0xf0000000 /* flags mask */ |
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/*
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* Option flags per-socket.
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*/
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#define SO_DEBUG 0x0001 /* turn on debugging info recording */ |
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#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ |
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#define SO_REUSEADDR 0x0004 /* allow local address reuse */ |
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#define SO_KEEPALIVE 0x0008 /* keep connections alive */ |
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#define SO_DONTROUTE 0x0010 /* just use interface addresses */ |
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#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ |
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#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ |
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#define SO_LINGER 0x0080 /* linger on close if data present */ |
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#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ |
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#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ |
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/* SO_OTIMESTAMP 0x0400 */
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#define SO_NOSIGPIPE 0x0800 /* no SIGPIPE from EPIPE */ |
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#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */ |
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#define SO_TIMESTAMP 0x2000 /* timestamp received dgram traffic */ |
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/*
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* Additional options, not kept in so_options.
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*/
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#define SO_SNDBUF 0x1001 /* send buffer size */ |
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#define SO_RCVBUF 0x1002 /* receive buffer size */ |
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#define SO_SNDLOWAT 0x1003 /* send low-water mark */ |
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#define SO_RCVLOWAT 0x1004 /* receive low-water mark */ |
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/* SO_OSNDTIMEO 0x1005 */
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/* SO_ORCVTIMEO 0x1006 */
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#define SO_ERROR 0x1007 /* get error status and clear */ |
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#define SO_TYPE 0x1008 /* get socket type */ |
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#define SO_OVERFLOWED 0x1009 /* datagrams: return packets dropped */ |
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#define SO_NOHEADER 0x100a /* user supplies no header to kernel; |
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* kernel removes header and supplies
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* payload
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*/
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#define SO_SNDTIMEO 0x100b /* send timeout */ |
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#define SO_RCVTIMEO 0x100c /* receive timeout */ |
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/*
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* Structure used for manipulating linger option.
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*/
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struct linger {
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int l_onoff; /* option on/off */ |
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int l_linger; /* linger time in seconds */ |
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}; |
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struct accept_filter_arg {
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char af_name[16]; |
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char af_arg[256-16]; |
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}; |
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/*
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* Level number for (get/set)sockopt() to apply to socket itself.
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*/
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#define SOL_SOCKET 0xffff /* options for socket level */ |
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/*
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* Address families.
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*/
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#define AF_UNSPEC 0 /* unspecified */ |
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#define AF_LOCAL 1 /* local to host */ |
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#define AF_UNIX AF_LOCAL /* backward compatibility */ |
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#define AF_INET 2 /* internetwork: UDP, TCP, etc. */ |
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#define AF_IMPLINK 3 /* arpanet imp addresses */ |
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#define AF_PUP 4 /* pup protocols: e.g. BSP */ |
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#define AF_CHAOS 5 /* mit CHAOS protocols */ |
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#define AF_NS 6 /* XEROX NS protocols */ |
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#define AF_ISO 7 /* ISO protocols */ |
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#define AF_OSI AF_ISO
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#define AF_ECMA 8 /* european computer manufacturers */ |
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#define AF_DATAKIT 9 /* datakit protocols */ |
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#define AF_CCITT 10 /* CCITT protocols, X.25 etc */ |
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#define AF_SNA 11 /* IBM SNA */ |
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#define AF_DECnet 12 /* DECnet */ |
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#define AF_DLI 13 /* DEC Direct data link interface */ |
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#define AF_LAT 14 /* LAT */ |
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#define AF_HYLINK 15 /* NSC Hyperchannel */ |
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#define AF_APPLETALK 16 /* Apple Talk */ |
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#define AF_OROUTE 17 /* Internal Routing Protocol */ |
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#define AF_LINK 18 /* Link layer interface */ |
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#if defined(_NETBSD_SOURCE)
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#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ |
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#endif
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#define AF_COIP 20 /* connection-oriented IP, aka ST II */ |
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#define AF_CNT 21 /* Computer Network Technology */ |
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#if defined(_NETBSD_SOURCE)
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#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ |
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#endif
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#define AF_IPX 23 /* Novell Internet Protocol */ |
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#define AF_INET6 24 /* IP version 6 */ |
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#if defined(_NETBSD_SOURCE)
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#define pseudo_AF_PIP 25 /* Help Identify PIP packets */ |
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#endif
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#define AF_ISDN 26 /* Integrated Services Digital Network*/ |
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#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ |
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#define AF_NATM 27 /* native ATM access */ |
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#define AF_ARP 28 /* (rev.) addr. res. prot. (RFC 826) */ |
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#if defined(_NETBSD_SOURCE)
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#define pseudo_AF_KEY 29 /* Internal key management protocol */ |
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#define pseudo_AF_HDRCMPLT 30 /* Used by BPF to not rewrite hdrs |
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in interface output routine */
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#endif
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#define AF_BLUETOOTH 31 /* Bluetooth: HCI, SCO, L2CAP, RFCOMM */ |
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#define AF_IEEE80211 32 /* IEEE80211 */ |
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#define AF_MPLS 33 /* MultiProtocol Label Switching */ |
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#define AF_ROUTE 34 /* Internal Routing Protocol */ |
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#define AF_MAX 35 |
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/*
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* Structure used by kernel to store most
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* addresses.
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*/
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struct sockaddr {
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__uint8_t sa_len; /* total length */
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sa_family_t sa_family; /* address family */
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char sa_data[14]; /* actually longer; address value */ |
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}; |
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#if defined(_KERNEL)
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/*
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* Structure used by kernel to pass protocol
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* information in raw sockets.
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*/
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struct sockproto {
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u_short sp_family; /* address family */
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u_short sp_protocol; /* protocol */
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}; |
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/*
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* we make the entire struct at least UCHAR_MAX + 1 in size since existing
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* use of sockaddr_un permits a path up to 253 bytes + '\0'.
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* sizeof(sb_len) + sizeof(sb_family) + 253 + '\0'
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*/
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#define _SB_DATASIZE 254 |
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struct sockaddr_big {
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union {
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struct {
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__uint8_t sb_len; |
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sa_family_t sb_family; |
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char sb_data[_SB_DATASIZE];
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}; |
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uint64_t dummy; /* solicit natural alignment */
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}; |
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}; |
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#endif /* _KERNEL */ |
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#if 1 |
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/*
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* RFC 2553: protocol-independent placeholder for socket addresses
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*/
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#define _SS_MAXSIZE 128 |
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#define _SS_ALIGNSIZE (sizeof(__int64_t)) |
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#define _SS_PAD1SIZE (_SS_ALIGNSIZE - 2) |
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#define _SS_PAD2SIZE (_SS_MAXSIZE - 2 - \ |
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_SS_PAD1SIZE - _SS_ALIGNSIZE) |
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#if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE) |
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struct sockaddr_storage {
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__uint8_t ss_len; /* address length */
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sa_family_t ss_family; /* address family */
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char __ss_pad1[_SS_PAD1SIZE];
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__int64_t __ss_align;/* force desired structure storage alignment */
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char __ss_pad2[_SS_PAD2SIZE];
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}; |
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#define sstosa(__ss) ((struct sockaddr *)(__ss)) |
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#define sstocsa(__ss) ((const struct sockaddr *)(__ss)) |
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#endif /* _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */ |
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#endif /* 1 */ |
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/*
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* Protocol families, same as address families for now.
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*/
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#define PF_UNSPEC AF_UNSPEC
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#define PF_LOCAL AF_LOCAL
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#define PF_UNIX PF_LOCAL /* backward compatibility */ |
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#define PF_INET AF_INET
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#define PF_IMPLINK AF_IMPLINK
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#define PF_PUP AF_PUP
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#define PF_CHAOS AF_CHAOS
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#define PF_NS AF_NS
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#define PF_ISO AF_ISO
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#define PF_OSI AF_ISO
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#define PF_ECMA AF_ECMA
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#define PF_DATAKIT AF_DATAKIT
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#define PF_CCITT AF_CCITT
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#define PF_SNA AF_SNA
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#define PF_DECnet AF_DECnet
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#define PF_DLI AF_DLI
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#define PF_LAT AF_LAT
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#define PF_HYLINK AF_HYLINK
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#define PF_APPLETALK AF_APPLETALK
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#define PF_OROUTE AF_OROUTE
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#define PF_LINK AF_LINK
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#if defined(_NETBSD_SOURCE)
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#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ |
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#endif
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#define PF_COIP AF_COIP
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#define PF_CNT AF_CNT
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#define PF_INET6 AF_INET6
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#define PF_IPX AF_IPX /* same format as AF_NS */ |
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#if defined(_NETBSD_SOURCE)
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#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ |
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#define PF_PIP pseudo_AF_PIP
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#endif
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#define PF_ISDN AF_ISDN /* same as E164 */ |
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#define PF_E164 AF_E164
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#define PF_NATM AF_NATM
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#define PF_ARP AF_ARP
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#if defined(_NETBSD_SOURCE)
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#define PF_KEY pseudo_AF_KEY /* like PF_ROUTE, only for key mgmt */ |
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#endif
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#define PF_BLUETOOTH AF_BLUETOOTH
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#define PF_MPLS AF_MPLS
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#define PF_ROUTE AF_ROUTE
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#define PF_MAX AF_MAX
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#if defined(_NETBSD_SOURCE)
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#ifndef gid_t
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typedef __gid_t gid_t; /* group id */ |
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#define gid_t __gid_t
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#endif
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#ifndef uid_t
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typedef __uid_t uid_t; /* user id */ |
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#define uid_t __uid_t
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#endif
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/*
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* Socket credentials.
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*/
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struct sockcred {
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uid_t sc_uid; /* real user id */
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uid_t sc_euid; /* effective user id */
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gid_t sc_gid; /* real group id */
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gid_t sc_egid; /* effective group id */
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int sc_ngroups; /* number of supplemental groups */ |
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gid_t sc_groups[1]; /* variable length */ |
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}; |
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/*
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* Compute size of a sockcred structure with groups.
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*/
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#define SOCKCREDSIZE(ngrps) \
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(/*CONSTCOND*/sizeof(struct sockcred) + (sizeof(gid_t) * \ |
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((ngrps) ? ((ngrps) - 1) : 0))) |
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#endif /* _NETBSD_SOURCE */ |
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#if defined(_NETBSD_SOURCE)
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/*
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* Definitions for network related sysctl, CTL_NET.
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*
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* Second level is protocol family.
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* Third level is protocol number.
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*
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* Further levels are defined by the individual families below.
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*/
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#define NET_MAXID AF_MAX
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#define CTL_NET_NAMES { \
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{ 0, 0 }, \
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{ "local", CTLTYPE_NODE }, \
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{ "inet", CTLTYPE_NODE }, \
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{ "implink", CTLTYPE_NODE }, \
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{ "pup", CTLTYPE_NODE }, \
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{ "chaos", CTLTYPE_NODE }, \
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{ "xerox_ns", CTLTYPE_NODE }, \
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{ "iso", CTLTYPE_NODE }, \
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{ "emca", CTLTYPE_NODE }, \
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{ "datakit", CTLTYPE_NODE }, \
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{ "ccitt", CTLTYPE_NODE }, \
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{ "ibm_sna", CTLTYPE_NODE }, \
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{ "decnet", CTLTYPE_NODE }, \
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{ "dec_dli", CTLTYPE_NODE }, \
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{ "lat", CTLTYPE_NODE }, \
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{ "hylink", CTLTYPE_NODE }, \
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{ "appletalk", CTLTYPE_NODE }, \
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{ "oroute", CTLTYPE_NODE }, \
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{ "link_layer", CTLTYPE_NODE }, \
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{ "xtp", CTLTYPE_NODE }, \
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{ "coip", CTLTYPE_NODE }, \
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{ "cnt", CTLTYPE_NODE }, \
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{ "rtip", CTLTYPE_NODE }, \
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{ "ipx", CTLTYPE_NODE }, \
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{ "inet6", CTLTYPE_NODE }, \
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{ "pip", CTLTYPE_NODE }, \
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{ "isdn", CTLTYPE_NODE }, \
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{ "natm", CTLTYPE_NODE }, \
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{ "arp", CTLTYPE_NODE }, \
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{ "key", CTLTYPE_NODE }, \
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{ "ieee80211", CTLTYPE_NODE }, \
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{ "mlps", CTLTYPE_NODE }, \
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{ "route", CTLTYPE_NODE }, \
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} |
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|
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struct kinfo_pcb {
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__uint64_t ki_pcbaddr; /* PTR: pcb addr */
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__uint64_t ki_ppcbaddr; /* PTR: ppcb addr */
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__uint64_t ki_sockaddr; /* PTR: socket addr */
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__uint32_t ki_family; /* INT: protocol family */
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__uint32_t ki_type; /* INT: socket type */
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__uint32_t ki_protocol; /* INT: protocol */
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__uint32_t ki_pflags; /* INT: generic protocol flags */
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__uint32_t ki_sostate; /* INT: socket state */
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__uint32_t ki_prstate; /* INT: protocol state */
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__int32_t ki_tstate; /* INT: tcp state */
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__uint32_t ki_tflags; /* INT: tcp flags */
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|
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__uint64_t ki_rcvq; /* U_LONG: receive queue len */
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__uint64_t ki_sndq; /* U_LONG: send queue len */
|
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|
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union {
|
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struct sockaddr _kis_src; /* STRUCT: local address */ |
| 435 |
char _kis_pad[256 + 8]; /* pad to max addr length */ |
| 436 |
} ki_s; |
| 437 |
union {
|
| 438 |
struct sockaddr _kid_dst; /* STRUCT: remote address */ |
| 439 |
char _kid_pad[256 + 8]; /* pad to max addr length */ |
| 440 |
} ki_d; |
| 441 |
|
| 442 |
__uint64_t ki_inode; /* INO_T: fake inode number */
|
| 443 |
__uint64_t ki_vnode; /* PTR: if associated with file */
|
| 444 |
__uint64_t ki_conn; /* PTR: control block of peer */
|
| 445 |
__uint64_t ki_refs; /* PTR: referencing socket */
|
| 446 |
__uint64_t ki_nextref; /* PTR: link in refs list */
|
| 447 |
}; |
| 448 |
|
| 449 |
#define ki_src ki_s._kis_src
|
| 450 |
#define ki_dst ki_d._kid_dst
|
| 451 |
#define ki_spad ki_s._kis_pad
|
| 452 |
#define ki_dpad ki_d._kid_pad
|
| 453 |
|
| 454 |
#define PCB_SLOP 20 |
| 455 |
#define PCB_ALL 0 |
| 456 |
|
| 457 |
#endif /* _NETBSD_SOURCE */ |
| 458 |
|
| 459 |
#if defined(_NETBSD_SOURCE)
|
| 460 |
/*
|
| 461 |
* PF_ROUTE - Routing table
|
| 462 |
*
|
| 463 |
* Three additional levels are defined:
|
| 464 |
* Fourth: address family, 0 is wildcard
|
| 465 |
* Fifth: type of info, defined below
|
| 466 |
* Sixth: flag(s) to mask with for NET_RT_FLAGS
|
| 467 |
*/
|
| 468 |
#define NET_RT_DUMP 1 /* dump; may limit to a.f. */ |
| 469 |
#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ |
| 470 |
#define NET_RT_OOIFLIST 3 /* old NET_RT_IFLIST (pre 1.5) */ |
| 471 |
#define NET_RT_OIFLIST 4 /* survey interface list */ |
| 472 |
#define NET_RT_IFLIST 5 |
| 473 |
#define NET_RT_MAXID 6 |
| 474 |
|
| 475 |
#define CTL_NET_RT_NAMES { \
|
| 476 |
{ 0, 0 }, \
|
| 477 |
{ "dump", CTLTYPE_STRUCT }, \
|
| 478 |
{ "flags", CTLTYPE_STRUCT }, \
|
| 479 |
{ 0, 0 }, \
|
| 480 |
{ 0, 0 }, \
|
| 481 |
{ "iflist", CTLTYPE_STRUCT }, \
|
| 482 |
} |
| 483 |
#endif /* _NETBSD_SOURCE */ |
| 484 |
|
| 485 |
/*
|
| 486 |
* Maximum queue length specifiable by listen(2).
|
| 487 |
*/
|
| 488 |
#ifndef SOMAXCONN
|
| 489 |
#define SOMAXCONN 128 |
| 490 |
#endif
|
| 491 |
|
| 492 |
#include <sys/cdefs.h> |
| 493 |
|
| 494 |
/*
|
| 495 |
* Message header for recvmsg and sendmsg calls.
|
| 496 |
* Used value-result for recvmsg, value only for sendmsg.
|
| 497 |
*/
|
| 498 |
struct msghdr {
|
| 499 |
void *msg_name; /* optional address */ |
| 500 |
socklen_t msg_namelen; /* size of address */
|
| 501 |
struct iovec *msg_iov; /* scatter/gather array */ |
| 502 |
int msg_iovlen; /* # elements in msg_iov */ |
| 503 |
void *msg_control; /* ancillary data, see below */ |
| 504 |
socklen_t msg_controllen; /* ancillary data buffer len */
|
| 505 |
int msg_flags; /* flags on received message */ |
| 506 |
}; |
| 507 |
|
| 508 |
#define MSG_OOB 0x0001 /* process out-of-band data */ |
| 509 |
#define MSG_PEEK 0x0002 /* peek at incoming message */ |
| 510 |
#define MSG_DONTROUTE 0x0004 /* send without using routing tables */ |
| 511 |
#define MSG_EOR 0x0008 /* data completes record */ |
| 512 |
#define MSG_TRUNC 0x0010 /* data discarded before delivery */ |
| 513 |
#define MSG_CTRUNC 0x0020 /* control data lost before delivery */ |
| 514 |
#define MSG_WAITALL 0x0040 /* wait for full request or error */ |
| 515 |
#define MSG_DONTWAIT 0x0080 /* this message should be nonblocking */ |
| 516 |
#define MSG_BCAST 0x0100 /* this message was rcvd using link-level brdcst */ |
| 517 |
#define MSG_MCAST 0x0200 /* this message was rcvd using link-level mcast */ |
| 518 |
#define MSG_NOSIGNAL 0x0400 /* do not generate SIGPIPE on EOF */ |
| 519 |
#if defined(_NETBSD_SOURCE)
|
| 520 |
#define MSG_CMSG_CLOEXEC 0x0800 /* close on exec receiving fd */ |
| 521 |
#define MSG_NBIO 0x1000 /* use non-blocking I/O */ |
| 522 |
#define MSG_WAITFORONE 0x2000 /* recvmmsg() wait for one message */ |
| 523 |
|
| 524 |
struct mmsghdr {
|
| 525 |
struct msghdr msg_hdr;
|
| 526 |
unsigned int msg_len; |
| 527 |
}; |
| 528 |
#endif
|
| 529 |
|
| 530 |
/* Extra flags used internally only */
|
| 531 |
#define MSG_USERFLAGS 0x0ffffff |
| 532 |
#define MSG_NAMEMBUF 0x1000000 /* msg_name is an mbuf */ |
| 533 |
#define MSG_CONTROLMBUF 0x2000000 /* msg_control is an mbuf */ |
| 534 |
#define MSG_IOVUSRSPACE 0x4000000 /* msg_iov is in user space */ |
| 535 |
#define MSG_LENUSRSPACE 0x8000000 /* address length is in user space */ |
| 536 |
|
| 537 |
/*
|
| 538 |
* Header for ancillary data objects in msg_control buffer.
|
| 539 |
* Used for additional information with/about a datagram
|
| 540 |
* not expressible by flags. The format is a sequence
|
| 541 |
* of message elements headed by cmsghdr structures.
|
| 542 |
*/
|
| 543 |
struct cmsghdr {
|
| 544 |
socklen_t cmsg_len; /* data byte count, including hdr */
|
| 545 |
int cmsg_level; /* originating protocol */ |
| 546 |
int cmsg_type; /* protocol-specific type */ |
| 547 |
/* followed by u_char cmsg_data[]; */
|
| 548 |
}; |
| 549 |
|
| 550 |
/*
|
| 551 |
* Alignment requirement for CMSG struct manipulation.
|
| 552 |
* This basically behaves the same as ALIGN() ARCH/include/param.h.
|
| 553 |
* We declare it separately for two reasons:
|
| 554 |
* (1) avoid dependency between machine/param.h, and (2) to sync with kernel's
|
| 555 |
* idea of ALIGNBYTES at runtime.
|
| 556 |
* without (2), we can't guarantee binary compatibility in case of future
|
| 557 |
* changes in ALIGNBYTES.
|
| 558 |
*/
|
| 559 |
#define __CMSG_ALIGN(n) (((n) + __ALIGNBYTES) & ~__ALIGNBYTES)
|
| 560 |
|
| 561 |
#ifdef _KERNEL
|
| 562 |
#define CMSG_ALIGN(n) __CMSG_ALIGN(n)
|
| 563 |
#endif
|
| 564 |
|
| 565 |
#define __CMSG_ASIZE __CMSG_ALIGN(sizeof(struct cmsghdr)) |
| 566 |
#define __CMSG_MSGNEXT(cmsg) \
|
| 567 |
(__CASTV(char *, cmsg) + __CMSG_ALIGN((cmsg)->cmsg_len))
|
| 568 |
#define __CMSG_MSGEND(mhdr) \
|
| 569 |
(__CASTV(char *, (mhdr)->msg_control) + (mhdr)->msg_controllen)
|
| 570 |
|
| 571 |
/* given pointer to struct cmsghdr, return pointer to data */
|
| 572 |
#define CMSG_DATA(cmsg) (__CASTV(u_char *, cmsg) + __CMSG_ASIZE)
|
| 573 |
#define CCMSG_DATA(cmsg) (__CASTCV(const u_char *, cmsg) + __CMSG_ASIZE) |
| 574 |
|
| 575 |
/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
|
| 576 |
#define CMSG_NXTHDR(mhdr, cmsg) \
|
| 577 |
__CASTV(struct cmsghdr *, \
|
| 578 |
__CMSG_MSGNEXT(cmsg) + __CMSG_ASIZE > __CMSG_MSGEND(mhdr) ? 0 : \
|
| 579 |
__CMSG_MSGNEXT(cmsg)) |
| 580 |
|
| 581 |
/*
|
| 582 |
* RFC 2292 requires to check msg_controllen, in case that the kernel returns
|
| 583 |
* an empty list for some reasons.
|
| 584 |
*/
|
| 585 |
#define CMSG_FIRSTHDR(mhdr) \
|
| 586 |
__CASTV(struct cmsghdr *, \
|
| 587 |
(mhdr)->msg_controllen < sizeof(struct cmsghdr) ? 0 : \ |
| 588 |
(mhdr)->msg_control) |
| 589 |
|
| 590 |
#define CMSG_SPACE(l) (__CMSG_ASIZE + __CMSG_ALIGN(l))
|
| 591 |
#define CMSG_LEN(l) (__CMSG_ASIZE + (l))
|
| 592 |
|
| 593 |
/* "Socket"-level control message types: */
|
| 594 |
#define SCM_RIGHTS 0x01 /* access rights (array of int) */ |
| 595 |
#if defined(_NETBSD_SOURCE)
|
| 596 |
/* 0x02 timestamp (struct timeval50) */
|
| 597 |
#define SCM_CREDS 0x04 /* credentials (struct sockcred) */ |
| 598 |
#define SCM_TIMESTAMP 0x08 /* timestamp (struct timeval) */ |
| 599 |
#endif
|
| 600 |
|
| 601 |
/*
|
| 602 |
* Types of socket shutdown(2).
|
| 603 |
*/
|
| 604 |
#define SHUT_RD 0 /* Disallow further receives. */ |
| 605 |
#define SHUT_WR 1 /* Disallow further sends. */ |
| 606 |
#define SHUT_RDWR 2 /* Disallow further sends/receives. */ |
| 607 |
|
| 608 |
#ifdef _KERNEL
|
| 609 |
static inline socklen_t |
| 610 |
sockaddr_getlen(const struct sockaddr *sa) |
| 611 |
{
|
| 612 |
return sa->sa_len;
|
| 613 |
} |
| 614 |
|
| 615 |
__BEGIN_DECLS |
| 616 |
struct sockaddr *sockaddr_copy(struct sockaddr *, socklen_t, |
| 617 |
const struct sockaddr *); |
| 618 |
struct sockaddr *sockaddr_externalize(struct sockaddr *, socklen_t, |
| 619 |
const struct sockaddr *); |
| 620 |
struct sockaddr *sockaddr_alloc(sa_family_t, socklen_t, int); |
| 621 |
const void *sockaddr_const_addr(const struct sockaddr *, socklen_t *); |
| 622 |
void *sockaddr_addr(struct sockaddr *, socklen_t *); |
| 623 |
const struct sockaddr *sockaddr_any(const struct sockaddr *); |
| 624 |
const struct sockaddr *sockaddr_any_by_family(int); |
| 625 |
const void *sockaddr_anyaddr(const struct sockaddr *, socklen_t *); |
| 626 |
int sockaddr_cmp(const struct sockaddr *, const struct sockaddr *); |
| 627 |
struct sockaddr *sockaddr_dup(const struct sockaddr *, int); |
| 628 |
int sockaddr_format(const struct sockaddr *, char *, size_t); |
| 629 |
void sockaddr_free(struct sockaddr *); |
| 630 |
__END_DECLS |
| 631 |
#endif /* _KERNEL */ |
| 632 |
|
| 633 |
#ifndef _KERNEL
|
| 634 |
|
| 635 |
__BEGIN_DECLS |
| 636 |
int accept(int, struct sockaddr * __restrict, socklen_t * __restrict); |
| 637 |
int bind(int, const struct sockaddr *, socklen_t); |
| 638 |
int connect(int, const struct sockaddr *, socklen_t); |
| 639 |
int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict); |
| 640 |
int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict); |
| 641 |
int getsockopt(int, int, int, void *__restrict, socklen_t * __restrict); |
| 642 |
int listen(int, int); |
| 643 |
int paccept(int, struct sockaddr * __restrict, socklen_t * __restrict, |
| 644 |
const sigset_t * __restrict, int); |
| 645 |
ssize_t recv(int, void *, size_t, int); |
| 646 |
ssize_t recvfrom(int, void *__restrict, size_t, int, |
| 647 |
struct sockaddr * __restrict, socklen_t * __restrict);
|
| 648 |
ssize_t recvmsg(int, struct msghdr *, int); |
| 649 |
ssize_t send(int, const void *, size_t, int); |
| 650 |
ssize_t sendto(int, const void *, |
| 651 |
size_t, int, const struct sockaddr *, socklen_t); |
| 652 |
ssize_t sendmsg(int, const struct msghdr *, int); |
| 653 |
int setsockopt(int, int, int, const void *, socklen_t); |
| 654 |
int shutdown(int, int); |
| 655 |
int sockatmark(int); |
| 656 |
int socket(int, int, int) |
| 657 |
#if !defined(__LIBC12_SOURCE__) && !defined(_STANDALONE)
|
| 658 |
__RENAME(__socket30) |
| 659 |
#endif
|
| 660 |
; |
| 661 |
int socketpair(int, int, int, int *); |
| 662 |
|
| 663 |
#if defined(_NETBSD_SOURCE)
|
| 664 |
int sendmmsg(int, struct mmsghdr *, unsigned int, unsigned int); |
| 665 |
struct timespec;
|
| 666 |
int recvmmsg(int, struct mmsghdr *, unsigned int, unsigned int, |
| 667 |
struct timespec *);
|
| 668 |
#endif
|
| 669 |
__END_DECLS |
| 670 |
#endif /* !_KERNEL */ |
| 671 |
|
| 672 |
#endif /* !_SYS_SOCKET_H_ */ |