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* Copyright (c) 1982,1985,1986,1988 Regents of the University of California.
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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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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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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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* 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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* from: @(#)socket.h 7.13 (Berkeley) 4/20/91
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#ifndef _SYS_SOCKET_H_
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#define _SYS_SOCKET_H_ 1
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* Definitions related to sockets: types, address families, options.
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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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* Option flags per-socket.
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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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* Additional options, not kept in so_options.
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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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* Structure used for manipulating linger option.
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int l_onoff; /* option on/off */
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int l_linger; /* linger time */
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* Level number for (get/set)sockopt() to apply to socket itself.
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#define SOL_SOCKET 0xffff /* options for socket level */
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#define AF_UNSPEC 0 /* unspecified */
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#define AF_UNIX 1 /* local to host (pipes, portals) */
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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_ROUTE 17 /* Internal Routing Protocol */
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#define AF_LINK 18 /* Link layer interface */
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#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
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#define AF_RMP 20 /* HP's Remote Maint Protocol */
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* Structure used by kernel to store most
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u_char sa_len; /* total length */
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u_char sa_family; /* address family */
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char sa_data[14]; /* actually longer; address value */
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* Structure used by kernel to pass protocol
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* information in raw sockets.
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u_short sp_family; /* address family */
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u_short sp_protocol; /* protocol */
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* Protocol families, same as address families for now.
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#define PF_UNSPEC AF_UNSPEC
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#define PF_UNIX AF_UNIX
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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_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_ROUTE AF_ROUTE
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#define PF_LINK AF_LINK
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#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
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#define PF_RMP AF_RMP
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#define PF_MAX AF_MAX
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* Maximum queue length specifiable by listen.
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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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caddr_t msg_name; /* optional address */
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u_int msg_namelen; /* size of address */
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struct iovec *msg_iov; /* scatter/gather array */
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u_int msg_iovlen; /* # elements in msg_iov */
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caddr_t msg_control; /* ancillary data, see below */
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u_int msg_controllen; /* ancillary data buffer len */
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int msg_flags; /* flags on received message */
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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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* 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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u_int 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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/* given pointer to struct adatahdr, return pointer to data */
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#define CMSG_DATA(cmsg) ((u_char *)((cmsg) + 1))
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/* given pointer to struct adatahdr, return pointer to next adatahdr */
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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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* 4.3 compat sockaddr, move to compat file later
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u_short sa_family; /* address family */
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char sa_data[14]; /* up to 14 bytes of direct address */
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* 4.3-compat message header (move to compat file later).
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caddr_t msg_name; /* optional address */
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int 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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caddr_t msg_accrights; /* access rights sent/received */
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int msg_accrightslen;
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#include <sys/cdefs.h>
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int accept __P_((int, struct sockaddr *, int *));
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int bind __P_((int, const struct sockaddr *, int));
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int connect __P_((int, const struct sockaddr *, int));
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int getpeername __P_((int, struct sockaddr *, int *));
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int getsockname __P_((int, struct sockaddr *, int *));
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int getsockopt __P_((int, int, int, void *, int *));
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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,
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struct sockaddr *, int *));
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int 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 *, size_t, int,
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const struct sockaddr *, int));
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int sendmsg __P_((int, const struct msghdr *, int));
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int setsockopt __P_((int, int, int, const void *, int));
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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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#endif /* _SYS_SOCKET_H_ */