/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ /* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */ /* The copyright notice above does not evidence any */ /* actual or intended publication of such source code. */ #ifndef _SYS_SOCKET_H #define _SYS_SOCKET_H #pragma ident "@(#)socket.h 1.48 98/06/19 SMI" /* SVr4.0 1.10 */ /* * +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * PROPRIETARY NOTICE (Combined) * * This source code is unpublished proprietary information * constituting, or derived under license from AT&T's UNIX(r) System V. * In addition, portions of such source code were derived from Berkeley * 4.3 BSD under license from the Regents of the University of * California. * * Copyright Notice * * Notice of copyright on this source code product does not indicate * publication. * * (c) 1986,1987,1988,1989 Sun Microsystems, Inc * (c) 1983,1984,1985,1986,1987,1988,1989 AT&T. * All rights reserved. */ #include #include #include #ifndef _KERNEL #if !defined(_XPG4_2) || defined(__EXTENSIONS__) #include #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ #endif /* !_KERNEL */ #ifdef __cplusplus extern "C" { #endif #ifndef _SA_FAMILY_T #define _SA_FAMILY_T typedef uint16_t sa_family_t; #endif #ifndef _SOCKLEN_T #define _SOCKLEN_T #if defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64) typedef size_t socklen_t; #else typedef uint32_t socklen_t; #endif /* defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64) */ #if defined(_XPG4_2) typedef socklen_t *Psocklen_t; #else typedef void *Psocklen_t; #endif /* defined(_XPG4_2) */ #endif /* _SOCKLEN_T */ /* * Definitions related to sockets: types, address families, options. */ #if !defined(_XPG4_2) || defined(__EXTENSIONS__) #ifndef NC_TPI_CLTS #define NC_TPI_CLTS 1 /* must agree with netconfig.h */ #define NC_TPI_COTS 2 /* must agree with netconfig.h */ #define NC_TPI_COTS_ORD 3 /* must agree with netconfig.h */ #define NC_TPI_RAW 4 /* must agree with netconfig.h */ #endif /* !NC_TPI_CLTS */ #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ /* * Types */ #if !defined(_XPG4_2) || defined(__EXTENSIONS__) #define SOCK_STREAM NC_TPI_COTS /* stream socket */ #define SOCK_DGRAM NC_TPI_CLTS /* datagram socket */ #define SOCK_RAW NC_TPI_RAW /* raw-protocol interface */ #else #define SOCK_STREAM 2 /* stream socket */ #define SOCK_DGRAM 1 /* datagram socket */ #define SOCK_RAW 4 /* raw-protocol interface */ #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ #define SOCK_RDM 5 /* reliably-delivered message */ #define SOCK_SEQPACKET 6 /* 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_DGRAM_ERRIND 0x0200 /* Application wants delayed error */ /* * N.B.: The following definition is present only for compatibility * with release 3.0. It will disappear in later releases. */ #define SO_DONTLINGER (~SO_LINGER) /* ~SO_LINGER */ /* * 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 */ #define SO_PROTOTYPE 0x1009 /* get/set protocol type */ /* "Socket"-level control message types: */ #define SCM_RIGHTS 0x1010 /* access rights (array of int) */ #define SO_STATE 0x2000 /* Internal: get so_state */ #ifdef _KERNEL #define SO_SRCADDR 0x2001 /* Internal: AF_UNIX source address */ #define SO_FILEP 0x2002 /* Internal: AF_UNIX file pointer */ #define SO_UNIX_CLOSE 0x2003 /* Internal: AF_UNIX peer closed */ #endif /* _KERNEL */ /* * 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_UNIX 1 /* local to host (pipes, portals) */ #define AF_INET 2 /* internetwork: UDP, TCP, etc. */ #define AF_IMPLINK 3 /* arpanet imp addresses */ #define AF_PUP 4 /* pup protocols: e.g. BSP */ #define AF_CHAOS 5 /* mit CHAOS protocols */ #define AF_NS 6 /* XEROX NS protocols */ #define AF_NBS 7 /* nbs protocols */ #define AF_ECMA 8 /* european computer manufacturers */ #define AF_DATAKIT 9 /* datakit protocols */ #define AF_CCITT 10 /* CCITT protocols, X.25 etc */ #define AF_SNA 11 /* IBM SNA */ #define AF_DECnet 12 /* DECnet */ #define AF_DLI 13 /* Direct data link interface */ #define AF_LAT 14 /* LAT */ #define AF_HYLINK 15 /* NSC Hyperchannel */ #define AF_APPLETALK 16 /* Apple Talk */ #define AF_NIT 17 /* Network Interface Tap */ #define AF_802 18 /* IEEE 802.2, also ISO 8802 */ #define AF_OSI 19 /* umbrella for all families used */ #define AF_X25 20 /* CCITT X.25 in particular */ #define AF_OSINET 21 /* AFI = 47, IDI = 4 */ #define AF_GOSIP 22 /* U.S. Government OSI */ #define AF_IPX 23 /* Novell Internet Protocol */ #define AF_ROUTE 24 /* Internal Routing Protocol */ #define AF_LINK 25 /* Link-layer interface */ #define AF_MAX 25 /* * Structure used by kernel to store most * addresses. */ struct sockaddr { sa_family_t sa_family; /* address family */ char sa_data[14]; /* up to 14 bytes of direct address */ }; /* * Protocol families, same as address families for now. */ #define PF_UNSPEC AF_UNSPEC #define PF_UNIX AF_UNIX #define PF_INET AF_INET #define PF_IMPLINK AF_IMPLINK #define PF_PUP AF_PUP #define PF_CHAOS AF_CHAOS #define PF_NS AF_NS #define PF_NBS AF_NBS #define PF_ECMA AF_ECMA #define PF_DATAKIT AF_DATAKIT #define PF_CCITT AF_CCITT #define PF_SNA AF_SNA #define PF_DECnet AF_DECnet #define PF_DLI AF_DLI #define PF_LAT AF_LAT #define PF_HYLINK AF_HYLINK #define PF_APPLETALK AF_APPLETALK #define PF_NIT AF_NIT #define PF_802 AF_802 #define PF_OSI AF_OSI #define PF_X25 AF_X25 #define PF_OSINET AF_OSINET #define PF_GOSIP AF_GOSIP #define PF_IPX AF_IPX #define PF_ROUTE AF_ROUTE #define PF_LINK AF_LINK #define PF_MAX AF_MAX /* * Maximum queue length specifiable by listen. */ #define SOMAXCONN 5 /* * Message header for recvmsg and sendmsg calls. */ 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 */ #if defined(_XPG4_2) || defined(_KERNEL) void *msg_control; /* ancillary data */ socklen_t msg_controllen; /* ancillary data buffer len */ int msg_flags; /* flags on received message */ #else caddr_t msg_accrights; /* access rights sent/received */ int msg_accrightslen; #endif /* defined(_XPG4_2) || defined(_KERNEL) */ }; #if defined(_KERNEL) /* * N.B.: we assume that omsghdr and nmsghdr are isomorphic, with * the sole exception that nmsghdr has the additional msg_flags * field at the end. */ struct omsghdr { 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 */ caddr_t msg_accrights; /* access rights sent/received */ int msg_accrightslen; }; #define nmsghdr msghdr #if defined(_SYSCALL32) struct omsghdr32 { caddr32_t msg_name; /* optional address */ uint32_t msg_namelen; /* size of address */ caddr32_t msg_iov; /* scatter/gather array */ int32_t msg_iovlen; /* # elements in msg_iov */ caddr32_t msg_accrights; /* access rights sent/received */ uint32_t msg_accrightslen; }; struct msghdr32 { caddr32_t msg_name; /* optional address */ uint32_t msg_namelen; /* size of address */ caddr32_t msg_iov; /* scatter/gather array */ int32_t msg_iovlen; /* # elements in msg_iov */ caddr32_t msg_control; /* ancillary data */ uint32_t msg_controllen; /* ancillary data buffer len */ int32_t msg_flags; /* flags on received message */ }; #define nmsghdr32 msghdr32 #endif /* _SYSCALL32 */ #endif /* _KERNEL */ #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 */ /* Added for XPGv2 compliance */ #define MSG_EOR 0x8 /* Terminates a record */ #define MSG_CTRUNC 0x10 /* Control data truncated */ #define MSG_TRUNC 0x20 /* Normal data truncated */ #define MSG_WAITALL 0x40 /* Wait for complete recv or error */ /* End of XPGv2 compliance */ #define MSG_DONTWAIT 0x80 /* Don't block for this recv */ #define MSG_XPG4_2 0x8000 /* Private: XPG4.2 flag */ #define MSG_MAXIOVLEN 16 /* Added for XPGv2 compliance */ #define SHUT_RD 0 #define SHUT_WR 1 #define SHUT_RDWR 2 struct cmsghdr { socklen_t cmsg_len; /* data byte count, including hdr */ int cmsg_level; /* originating protocol */ int cmsg_type; /* protocol-specific type */ }; #if defined(_XPG4_2) || defined(_KERNEL) #if defined(__sparc) /* To maintain backward compatibility, alignment needs to be 8 on sparc. */ #define _CMSG_HDR_ALIGNMENT 8 #else /* for __i386 (and other future architectures) */ #define _CMSG_HDR_ALIGNMENT 4 #endif /* defined(__sparc) */ #endif /* defined(_XPG4_2) || defined(_KERNEL) */ #if defined(_XPG4_2) /* * The cmsg headers (and macros dealing with them) were made available as * part of UNIX95 and hence need to be protected with a _XPG4_2 define. */ #define _CMSG_DATA_ALIGNMENT (sizeof (int)) #define _CMSG_HDR_ALIGN(x) (((uintptr_t)(x) + _CMSG_HDR_ALIGNMENT - 1) & \ ~(_CMSG_HDR_ALIGNMENT - 1)) #define _CMSG_DATA_ALIGN(x) (((uintptr_t)(x) + _CMSG_DATA_ALIGNMENT - 1) & \ ~(_CMSG_DATA_ALIGNMENT - 1)) #define CMSG_DATA(c) \ ((unsigned char *)_CMSG_DATA_ALIGN((struct cmsghdr *)c + 1)) #define CMSG_FIRSTHDR(m) ((struct cmsghdr *)((m)->msg_control)) #define CMSG_NXTHDR(m, c) \ ((((uintptr_t) \ (_CMSG_HDR_ALIGN((char *)c + ((struct cmsghdr *)c)->cmsg_len)) + \ sizeof (struct cmsghdr)) > \ (((uintptr_t)((struct msghdr *)(m))->msg_control) + \ ((uintptr_t)((struct msghdr *)(m))->msg_controllen)) ? \ ((struct cmsghdr *)0) : \ ((struct cmsghdr *)(_CMSG_HDR_ALIGN((char *)c) + \ ((struct cmsghdr *)c)->cmsg_len)))) #endif /* _XPG4_2 */ #ifdef _XPG4_2 #ifdef __PRAGMA_REDEFINE_EXTNAME #pragma redefine_extname bind __xnet_bind #pragma redefine_extname connect __xnet_connect #pragma redefine_extname recvmsg __xnet_recvmsg #pragma redefine_extname sendmsg __xnet_sendmsg #pragma redefine_extname sendto __xnet_sendto #pragma redefine_extname socket __xnet_socket #pragma redefine_extname socketpair __xnet_socketpair #pragma redefine_extname getsockopt __xnet_getsockopt #else /* __PRAGMA_REDEFINE_EXTNAME */ #define bind __xnet_bind #define connect __xnet_connect #define recvmsg __xnet_recvmsg #define sendmsg __xnet_sendmsg #define sendto __xnet_sendto #define socket __xnet_socket #define socketpair __xnet_socketpair #define getsockopt __xnet_getsockopt #endif /* __PRAGMA_REDEFINE_EXTNAME */ #endif /* _XPG4_2 */ #if defined(_XPG4_2) && !defined(_XPG5) #ifdef __PRAGMA_REDEFINE_EXTNAME #pragma redefine_extname listen __xnet_listen #else /* __PRAGMA_REDEFINE_EXTNAME */ #define listen __xnet_listen #endif /* __PRAGMA_REDEFINE_EXTNAME */ #endif /* (_XPG4_2) && !defined(_XPG5) */ #ifndef _KERNEL #ifdef __STDC__ extern int accept(int, struct sockaddr *, Psocklen_t); extern int bind(int, const struct sockaddr *, socklen_t); extern int connect(int, const struct sockaddr *, socklen_t); extern int getpeername(int, struct sockaddr *, Psocklen_t); extern int getsockname(int, struct sockaddr *, Psocklen_t); extern int getsockopt(int, int, int, void *, Psocklen_t); extern int listen(int, int); /* XXX - fixme??? where do I go */ extern int socketpair(int, int, int, int *); extern ssize_t recv(int, void *, size_t, int); extern ssize_t recvfrom(int, void *, size_t, int, struct sockaddr *, Psocklen_t); extern ssize_t recvmsg(int, struct msghdr *, int); extern ssize_t send(int, const void *, size_t, int); extern ssize_t sendmsg(int, const struct msghdr *, int); extern ssize_t sendto(int, const void *, size_t, int, const struct sockaddr *, socklen_t); extern int setsockopt(int, int, int, const void *, socklen_t); extern int shutdown(int, int); extern int socket(int, int, int); #else /* __STDC__ */ extern int accept(); extern int bind(); extern int connect(); extern int getpeername(); extern int getsockname(); extern int getsockopt(); extern int listen(); extern int recv(); extern int recvfrom(); extern int send(); extern int sendto(); extern int setsockopt(); extern int socket(); extern int recvmsg(); extern int sendmsg(); extern int shutdown(); extern int socketpair(); #endif /* __STDC__ */ #endif /* _KERNEL */ #ifdef __cplusplus } #endif #endif /* _SYS_SOCKET_H */