/* * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * [¤3 Deleted as of 22Jul99, see * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change * for details] * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)socket.h 8.4 (Berkeley) 2/21/94 */ /* Adapted for GUSI by Matthias Neeracher */ #ifndef _SYS_SOCKET_H_ #define _SYS_SOCKET_H_ /* * Definitions related to sockets: types, address families, options. */ /* * Types */ #define SOCK_STREAM 1 /* stream socket */ #define SOCK_DGRAM 2 /* datagram socket */ #define SOCK_RAW 3 /* raw-protocol interface */ #define SOCK_RDM 4 /* reliably-delivered message */ #define SOCK_SEQPACKET 5 /* sequenced packet stream */ /* * Option flags per-socket. */ #define SO_DEBUG 0x0001 /* turn on debugging info recording */ #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ #define SO_REUSEADDR 0x0004 /* allow local address reuse */ #define SO_KEEPALIVE 0x0008 /* keep connections alive */ #define SO_DONTROUTE 0x0010 /* just use interface addresses */ #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ #define SO_LINGER 0x0080 /* linger on close if data present */ #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ /* * Additional options, not kept in so_options. */ #define SO_SNDBUF 0x1001 /* send buffer size */ #define SO_RCVBUF 0x1002 /* receive buffer size */ #define SO_SNDLOWAT 0x1003 /* send low-water mark */ #define SO_RCVLOWAT 0x1004 /* receive low-water mark */ #define SO_SNDTIMEO 0x1005 /* send timeout */ #define SO_RCVTIMEO 0x1006 /* receive timeout */ #define SO_ERROR 0x1007 /* get error status and clear */ #define SO_TYPE 0x1008 /* get socket type */ /* Mandated by XNS -- neeri */ typedef unsigned socklen_t; /* * Structure used for manipulating linger option. */ struct linger { int l_onoff; /* option on/off */ int l_linger; /* linger time */ }; /* * Level number for (get/set)sockopt() to apply to socket itself. */ #define SOL_SOCKET 0xffff /* options for socket level */ /* * Address families. */ #define AF_UNSPEC 0 /* unspecified */ #define AF_LOCAL 1 /* local to host (pipes, portals) */ #define AF_UNIX AF_LOCAL /* backward compatibility */ #define AF_INET 2 /* internetwork: UDP, TCP, etc. */ #define AF_PPC 3 /* PPC Toolbox */ #define AF_PAP 4 /* Printer Access Protocol */ #define AF_APPLETALK 16 /* Apple Talk */ #define ATALK_SYMADDR 272 /* Symbolic Address for AppleTalk */ #define AF_MAX 20 #define PF_UNSPEC 0 /* unspecified */ #define PF_LOCAL 1 /* local to host (pipes, portals) */ #define PF_UNIX AF_LOCAL /* backward compatibility */ #define PF_INET 2 /* internetwork: UDP, TCP, etc. */ #define PF_PPC 3 /* PPC Toolbox */ #define PF_PAP 4 /* Printer Access Protocol */ #define PF_APPLETALK 16 /* Apple Talk */ /* Mandated by XNS -- neeri */ #define SHUT_RD 0 #define SHUT_WR 1 #define SHUT_RDWR 2 #ifndef _SA_FAMILY_T_DEFINED #define _SA_FAMILY_T_DEFINED typedef unsigned short 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]; /* actually longer; address value */ }; /* * Definitions for network related sysctl, CTL_NET. * * Second level is protocol family. * Third level is protocol number. * * Further levels are defined by the individual families below. */ #define NET_MAXID AF_MAX #define CTL_NET_NAMES { \ { 0, 0 }, \ { "unix", CTLTYPE_NODE }, \ { "inet", CTLTYPE_NODE }, \ { "ppc", CTLTYPE_NODE }, \ { "pap", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "", CTLTYPE_NODE }, \ { "appletalk", CTLTYPE_NODE }, \ } /* * PF_ROUTE - Routing table * * Three additional levels are defined: * Fourth: address family, 0 is wildcard * Fifth: type of info, defined below * Sixth: flag(s) to mask with for NET_RT_FLAGS */ #define NET_RT_DUMP 1 /* dump; may limit to a.f. */ #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ #define NET_RT_IFLIST 3 /* survey interface list */ #define NET_RT_MAXID 4 #define CTL_NET_RT_NAMES { \ { 0, 0 }, \ { "dump", CTLTYPE_STRUCT }, \ { "flags", CTLTYPE_STRUCT }, \ { "iflist", CTLTYPE_STRUCT }, \ } /* * Maximum queue length specifiable by listen. */ #define SOMAXCONN 5 /* * Message header for recvmsg and sendmsg calls. * Used value-result for recvmsg, value only for sendmsg. */ struct msghdr { void * msg_name; /* optional address */ socklen_t msg_namelen; /* size of address */ struct iovec *msg_iov; /* scatter/gather array */ int msg_iovlen; /* # elements in msg_iov */ void * msg_control; /* ancillary data, see below */ socklen_t msg_controllen; /* ancillary data buffer len */ int msg_flags; /* flags on received message */ }; #define MSG_OOB 0x1 /* process out-of-band data */ #define MSG_PEEK 0x2 /* peek at incoming message */ #define MSG_DONTROUTE 0x4 /* send without using routing tables */ #define MSG_EOR 0x8 /* data completes record */ #define MSG_TRUNC 0x10 /* data discarded before delivery */ #define MSG_CTRUNC 0x20 /* control data lost before delivery */ #define MSG_WAITALL 0x40 /* wait for full request or error */ #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ /* * Header for ancillary data objects in msg_control buffer. * Used for additional information with/about a datagram * not expressible by flags. The format is a sequence * of message elements headed by cmsghdr structures. */ struct cmsghdr { socklen_t cmsg_len; /* data byte count, including hdr */ int cmsg_level; /* originating protocol */ int cmsg_type; /* protocol-specific type */ /* followed by u_char cmsg_data[]; */ }; /* given pointer to struct cmsghdr, return pointer to data */ #define CMSG_DATA(cmsg) ((u_char *)((cmsg) + 1)) /* given pointer to struct cmsghdr, return pointer to next cmsghdr */ #define CMSG_NXTHDR(mhdr, cmsg) \ (((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \ (mhdr)->msg_control + (mhdr)->msg_controllen) ? \ (struct cmsghdr *)NULL : \ (struct cmsghdr *)((caddr_t)(cmsg) + ALIGN((cmsg)->cmsg_len))) #define CMSG_FIRSTHDR(mhdr) ((struct cmsghdr *)(mhdr)->msg_control) /* "Socket"-level control message types: */ #define SCM_RIGHTS 0x01 /* access rights (array of int) */ #include __BEGIN_DECLS int accept __P((int, struct sockaddr *, socklen_t *)); int bind __P((int, const struct sockaddr *, socklen_t)); int connect __P((int, const struct sockaddr *, socklen_t)); int getpeername __P((int, struct sockaddr *, socklen_t *)); int getsockname __P((int, struct sockaddr *, socklen_t *)); int getsockopt __P((int, int, int, void *, socklen_t *)); int listen __P((int, int)); ssize_t recv __P((int, void *, size_t, int)); ssize_t recvfrom __P((int, void *, size_t, int, struct sockaddr *, socklen_t *)); ssize_t recvmsg __P((int, struct msghdr *, int)); ssize_t send __P((int, const void *, size_t, int)); ssize_t sendto __P((int, const void *, size_t, int, const struct sockaddr *, socklen_t)); ssize_t sendmsg __P((int, const struct msghdr *, int)); int setsockopt __P((int, int, int, const void *, socklen_t)); int shutdown __P((int, int)); int socket __P((int, int, int)); int socketpair __P((int, int, int, int *)); __END_DECLS #endif /* !_SYS_SOCKET_H_ */