mirror of
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267 lines
9.0 KiB
C
267 lines
9.0 KiB
C
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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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* [<EFBFBD>3 Deleted as of 22Jul99, see
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* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
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* for details]
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* 4. 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 8.4 (Berkeley) 2/21/94
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*/
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/* Adapted for GUSI by Matthias Neeracher <neeri@iis.ee.ethz.ch> */
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#ifndef _SYS_SOCKET_H_
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#define _SYS_SOCKET_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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* 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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/*
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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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/*
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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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#define SO_SNDTIMEO 0x1005 /* send timeout */
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#define SO_RCVTIMEO 0x1006 /* receive timeout */
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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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/* Mandated by XNS -- neeri */
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typedef unsigned socklen_t;
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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 */
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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 (pipes, portals) */
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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_PPC 3 /* PPC Toolbox */
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#define AF_PAP 4 /* Printer Access Protocol */
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#define AF_APPLETALK 16 /* Apple Talk */
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#define ATALK_SYMADDR 272 /* Symbolic Address for AppleTalk */
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#define AF_MAX 20
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#define PF_UNSPEC 0 /* unspecified */
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#define PF_LOCAL 1 /* local to host (pipes, portals) */
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#define PF_UNIX AF_LOCAL /* backward compatibility */
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#define PF_INET 2 /* internetwork: UDP, TCP, etc. */
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#define PF_PPC 3 /* PPC Toolbox */
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#define PF_PAP 4 /* Printer Access Protocol */
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#define PF_APPLETALK 16 /* Apple Talk */
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/* Mandated by XNS -- neeri */
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#define SHUT_RD 0
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#define SHUT_WR 1
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#define SHUT_RDWR 2
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#ifndef _SA_FAMILY_T_DEFINED
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#define _SA_FAMILY_T_DEFINED
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typedef unsigned short sa_family_t;
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#endif
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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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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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/*
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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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{ "unix", CTLTYPE_NODE }, \
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{ "inet", CTLTYPE_NODE }, \
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{ "ppc", CTLTYPE_NODE }, \
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{ "pap", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "", CTLTYPE_NODE }, \
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{ "appletalk", CTLTYPE_NODE }, \
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}
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/*
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* PF_ROUTE - Routing table
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*
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* Three additional levels are defined:
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* Fourth: address family, 0 is wildcard
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* Fifth: type of info, defined below
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* Sixth: flag(s) to mask with for NET_RT_FLAGS
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*/
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#define NET_RT_DUMP 1 /* dump; may limit to a.f. */
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#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
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#define NET_RT_IFLIST 3 /* survey interface list */
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#define NET_RT_MAXID 4
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#define CTL_NET_RT_NAMES { \
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{ 0, 0 }, \
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{ "dump", CTLTYPE_STRUCT }, \
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{ "flags", CTLTYPE_STRUCT }, \
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{ "iflist", CTLTYPE_STRUCT }, \
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}
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/*
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* Maximum queue length specifiable by listen.
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*/
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#define SOMAXCONN 5
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/*
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* Message header for recvmsg and sendmsg calls.
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* Used value-result for recvmsg, value only for sendmsg.
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*/
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struct msghdr {
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void * msg_name; /* optional address */
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socklen_t msg_namelen; /* size of address */
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struct iovec *msg_iov; /* scatter/gather array */
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int msg_iovlen; /* # elements in msg_iov */
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void * msg_control; /* ancillary data, see below */
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socklen_t msg_controllen; /* ancillary data buffer len */
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int msg_flags; /* flags on received message */
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};
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#define MSG_OOB 0x1 /* process out-of-band data */
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#define MSG_PEEK 0x2 /* peek at incoming message */
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#define MSG_DONTROUTE 0x4 /* send without using routing tables */
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#define MSG_EOR 0x8 /* data completes record */
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#define MSG_TRUNC 0x10 /* data discarded before delivery */
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#define MSG_CTRUNC 0x20 /* control data lost before delivery */
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#define MSG_WAITALL 0x40 /* wait for full request or error */
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#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
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/*
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* Header for ancillary data objects in msg_control buffer.
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* Used for additional information with/about a datagram
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* not expressible by flags. The format is a sequence
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* of message elements headed by cmsghdr structures.
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*/
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struct cmsghdr {
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socklen_t cmsg_len; /* data byte count, including hdr */
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int cmsg_level; /* originating protocol */
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int cmsg_type; /* protocol-specific type */
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/* followed by u_char cmsg_data[]; */
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};
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/* given pointer to struct cmsghdr, return pointer to data */
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#define CMSG_DATA(cmsg) ((u_char *)((cmsg) + 1))
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/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
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#define CMSG_NXTHDR(mhdr, cmsg) \
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(((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \
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(mhdr)->msg_control + (mhdr)->msg_controllen) ? \
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(struct cmsghdr *)NULL : \
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(struct cmsghdr *)((caddr_t)(cmsg) + ALIGN((cmsg)->cmsg_len)))
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#define CMSG_FIRSTHDR(mhdr) ((struct cmsghdr *)(mhdr)->msg_control)
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/* "Socket"-level control message types: */
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#define SCM_RIGHTS 0x01 /* access rights (array of int) */
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int accept __P((int, struct sockaddr *, socklen_t *));
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int bind __P((int, const struct sockaddr *, socklen_t));
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int connect __P((int, const struct sockaddr *, socklen_t));
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int getpeername __P((int, struct sockaddr *, socklen_t *));
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int getsockname __P((int, struct sockaddr *, socklen_t *));
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int getsockopt __P((int, int, int, void *, socklen_t *));
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int listen __P((int, int));
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ssize_t recv __P((int, void *, size_t, int));
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ssize_t recvfrom __P((int, void *, size_t, int, struct sockaddr *, socklen_t *));
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ssize_t recvmsg __P((int, struct msghdr *, int));
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ssize_t send __P((int, const void *, size_t, int));
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ssize_t sendto __P((int, const void *,
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size_t, int, const struct sockaddr *, socklen_t));
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ssize_t sendmsg __P((int, const struct msghdr *, int));
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int setsockopt __P((int, int, int, const void *, socklen_t));
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int shutdown __P((int, int));
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int socket __P((int, int, int));
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int socketpair __P((int, int, int, int *));
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__END_DECLS
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#endif /* !_SYS_SOCKET_H_ */
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