socket.h revision 170613
1/*- 2 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)socket.h 8.4 (Berkeley) 2/21/94 30 * $FreeBSD: head/sys/sys/socket.h 170613 2007-06-12 16:24:56Z bms $ 31 */ 32 33#ifndef _SYS_SOCKET_H_ 34#define _SYS_SOCKET_H_ 35 36#include <sys/cdefs.h> 37#include <sys/_types.h> 38#include <sys/_iovec.h> 39#define _NO_NAMESPACE_POLLUTION 40#include <machine/param.h> 41#undef _NO_NAMESPACE_POLLUTION 42 43/* 44 * Definitions related to sockets: types, address families, options. 45 */ 46 47/* 48 * Data types. 49 */ 50#if __BSD_VISIBLE 51#ifndef _GID_T_DECLARED 52typedef __gid_t gid_t; 53#define _GID_T_DECLARED 54#endif 55 56#ifndef _OFF_T_DECLARED 57typedef __off_t off_t; 58#define _OFF_T_DECLARED 59#endif 60 61#ifndef _PID_T_DECLARED 62typedef __pid_t pid_t; 63#define _PID_T_DECLARED 64#endif 65#endif 66 67#ifndef _SA_FAMILY_T_DECLARED 68typedef __sa_family_t sa_family_t; 69#define _SA_FAMILY_T_DECLARED 70#endif 71 72#ifndef _SOCKLEN_T_DECLARED 73typedef __socklen_t socklen_t; 74#define _SOCKLEN_T_DECLARED 75#endif 76 77#ifndef _SSIZE_T_DECLARED 78typedef __ssize_t ssize_t; 79#define _SSIZE_T_DECLARED 80#endif 81 82#if __BSD_VISIBLE 83#ifndef _UID_T_DECLARED 84typedef __uid_t uid_t; 85#define _UID_T_DECLARED 86#endif 87#endif 88 89/* 90 * Types 91 */ 92#define SOCK_STREAM 1 /* stream socket */ 93#define SOCK_DGRAM 2 /* datagram socket */ 94#define SOCK_RAW 3 /* raw-protocol interface */ 95#if __BSD_VISIBLE 96#define SOCK_RDM 4 /* reliably-delivered message */ 97#endif 98#define SOCK_SEQPACKET 5 /* sequenced packet stream */ 99 100/* 101 * Option flags per-socket. 102 */ 103#define SO_DEBUG 0x0001 /* turn on debugging info recording */ 104#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ 105#define SO_REUSEADDR 0x0004 /* allow local address reuse */ 106#define SO_KEEPALIVE 0x0008 /* keep connections alive */ 107#define SO_DONTROUTE 0x0010 /* just use interface addresses */ 108#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ 109#if __BSD_VISIBLE 110#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ 111#endif 112#define SO_LINGER 0x0080 /* linger on close if data present */ 113#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ 114#if __BSD_VISIBLE 115#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ 116#define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */ 117#define SO_NOSIGPIPE 0x0800 /* no SIGPIPE from EPIPE */ 118#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */ 119#define SO_BINTIME 0x2000 /* timestamp received dgram traffic */ 120#endif 121 122/* 123 * Additional options, not kept in so_options. 124 */ 125#define SO_SNDBUF 0x1001 /* send buffer size */ 126#define SO_RCVBUF 0x1002 /* receive buffer size */ 127#define SO_SNDLOWAT 0x1003 /* send low-water mark */ 128#define SO_RCVLOWAT 0x1004 /* receive low-water mark */ 129#define SO_SNDTIMEO 0x1005 /* send timeout */ 130#define SO_RCVTIMEO 0x1006 /* receive timeout */ 131#define SO_ERROR 0x1007 /* get error status and clear */ 132#define SO_TYPE 0x1008 /* get socket type */ 133#if __BSD_VISIBLE 134#define SO_LABEL 0x1009 /* socket's MAC label */ 135#define SO_PEERLABEL 0x1010 /* socket's peer's MAC label */ 136#define SO_LISTENQLIMIT 0x1011 /* socket's backlog limit */ 137#define SO_LISTENQLEN 0x1012 /* socket's complete queue length */ 138#define SO_LISTENINCQLEN 0x1013 /* socket's incomplete queue length */ 139#endif 140 141/* 142 * Structure used for manipulating linger option. 143 */ 144struct linger { 145 int l_onoff; /* option on/off */ 146 int l_linger; /* linger time */ 147}; 148 149#if __BSD_VISIBLE 150struct accept_filter_arg { 151 char af_name[16]; 152 char af_arg[256-16]; 153}; 154#endif 155 156/* 157 * Level number for (get/set)sockopt() to apply to socket itself. 158 */ 159#define SOL_SOCKET 0xffff /* options for socket level */ 160 161/* 162 * Address families. 163 */ 164#define AF_UNSPEC 0 /* unspecified */ 165#if __BSD_VISIBLE 166#define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */ 167#endif 168#define AF_UNIX 1 /* standardized name for AF_LOCAL */ 169#define AF_INET 2 /* internetwork: UDP, TCP, etc. */ 170#if __BSD_VISIBLE 171#define AF_IMPLINK 3 /* arpanet imp addresses */ 172#define AF_PUP 4 /* pup protocols: e.g. BSP */ 173#define AF_CHAOS 5 /* mit CHAOS protocols */ 174#define AF_NETBIOS 6 /* SMB protocols */ 175#define AF_ISO 7 /* ISO protocols */ 176#define AF_OSI AF_ISO 177#define AF_ECMA 8 /* European computer manufacturers */ 178#define AF_DATAKIT 9 /* datakit protocols */ 179#define AF_CCITT 10 /* CCITT protocols, X.25 etc */ 180#define AF_SNA 11 /* IBM SNA */ 181#define AF_DECnet 12 /* DECnet */ 182#define AF_DLI 13 /* DEC Direct data link interface */ 183#define AF_LAT 14 /* LAT */ 184#define AF_HYLINK 15 /* NSC Hyperchannel */ 185#define AF_APPLETALK 16 /* Apple Talk */ 186#define AF_ROUTE 17 /* Internal Routing Protocol */ 187#define AF_LINK 18 /* Link layer interface */ 188#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ 189#define AF_COIP 20 /* connection-oriented IP, aka ST II */ 190#define AF_CNT 21 /* Computer Network Technology */ 191#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ 192#define AF_IPX 23 /* Novell Internet Protocol */ 193#define AF_SIP 24 /* Simple Internet Protocol */ 194#define pseudo_AF_PIP 25 /* Help Identify PIP packets */ 195#define AF_ISDN 26 /* Integrated Services Digital Network*/ 196#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ 197#define pseudo_AF_KEY 27 /* Internal key-management function */ 198#endif 199#define AF_INET6 28 /* IPv6 */ 200#if __BSD_VISIBLE 201#define AF_NATM 29 /* native ATM access */ 202#define AF_ATM 30 /* ATM */ 203#define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers 204 * in interface output routine 205 */ 206#define AF_NETGRAPH 32 /* Netgraph sockets */ 207#define AF_SLOW 33 /* 802.3ad slow protocol */ 208#define AF_SCLUSTER 34 /* Sitara cluster protocol */ 209#define AF_ARP 35 210#define AF_BLUETOOTH 36 /* Bluetooth sockets */ 211#define AF_IEEE80211 37 /* IEEE 802.11 protocol */ 212#define AF_MAX 38 213#endif 214 215/* 216 * Structure used by kernel to store most 217 * addresses. 218 */ 219struct sockaddr { 220 unsigned char sa_len; /* total length */ 221 sa_family_t sa_family; /* address family */ 222 char sa_data[14]; /* actually longer; address value */ 223}; 224#if __BSD_VISIBLE 225#define SOCK_MAXADDRLEN 255 /* longest possible addresses */ 226 227/* 228 * Structure used by kernel to pass protocol 229 * information in raw sockets. 230 */ 231struct sockproto { 232 unsigned short sp_family; /* address family */ 233 unsigned short sp_protocol; /* protocol */ 234}; 235#endif 236 237#ifndef _STRUCT_SOCKADDR_STORAGE_DECLARED 238/* 239 * RFC 2553: protocol-independent placeholder for socket addresses 240 */ 241#define _SS_MAXSIZE 128U 242#define _SS_ALIGNSIZE (sizeof(__int64_t)) 243#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(unsigned char) - \ 244 sizeof(sa_family_t)) 245#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(unsigned char) - \ 246 sizeof(sa_family_t) - _SS_PAD1SIZE - _SS_ALIGNSIZE) 247 248struct sockaddr_storage { 249 unsigned char ss_len; /* address length */ 250 sa_family_t ss_family; /* address family */ 251 char __ss_pad1[_SS_PAD1SIZE]; 252 __int64_t __ss_align; /* force desired struct alignment */ 253 char __ss_pad2[_SS_PAD2SIZE]; 254}; 255#define _STRUCT_SOCKADDR_STORAGE_DECLARED 256#endif 257 258#if __BSD_VISIBLE 259/* 260 * Protocol families, same as address families for now. 261 */ 262#define PF_UNSPEC AF_UNSPEC 263#define PF_LOCAL AF_LOCAL 264#define PF_UNIX PF_LOCAL /* backward compatibility */ 265#define PF_INET AF_INET 266#define PF_IMPLINK AF_IMPLINK 267#define PF_PUP AF_PUP 268#define PF_CHAOS AF_CHAOS 269#define PF_NETBIOS AF_NETBIOS 270#define PF_ISO AF_ISO 271#define PF_OSI AF_ISO 272#define PF_ECMA AF_ECMA 273#define PF_DATAKIT AF_DATAKIT 274#define PF_CCITT AF_CCITT 275#define PF_SNA AF_SNA 276#define PF_DECnet AF_DECnet 277#define PF_DLI AF_DLI 278#define PF_LAT AF_LAT 279#define PF_HYLINK AF_HYLINK 280#define PF_APPLETALK AF_APPLETALK 281#define PF_ROUTE AF_ROUTE 282#define PF_LINK AF_LINK 283#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ 284#define PF_COIP AF_COIP 285#define PF_CNT AF_CNT 286#define PF_SIP AF_SIP 287#define PF_IPX AF_IPX 288#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ 289#define PF_PIP pseudo_AF_PIP 290#define PF_ISDN AF_ISDN 291#define PF_KEY pseudo_AF_KEY 292#define PF_INET6 AF_INET6 293#define PF_NATM AF_NATM 294#define PF_ATM AF_ATM 295#define PF_NETGRAPH AF_NETGRAPH 296#define PF_SLOW AF_SLOW 297#define PF_SCLUSTER AF_SCLUSTER 298#define PF_ARP AF_ARP 299#define PF_BLUETOOTH AF_BLUETOOTH 300 301#define PF_MAX AF_MAX 302 303/* 304 * Definitions for network related sysctl, CTL_NET. 305 * 306 * Second level is protocol family. 307 * Third level is protocol number. 308 * 309 * Further levels are defined by the individual families below. 310 */ 311#define NET_MAXID AF_MAX 312 313#define CTL_NET_NAMES { \ 314 { 0, 0 }, \ 315 { "unix", CTLTYPE_NODE }, \ 316 { "inet", CTLTYPE_NODE }, \ 317 { "implink", CTLTYPE_NODE }, \ 318 { "pup", CTLTYPE_NODE }, \ 319 { "chaos", CTLTYPE_NODE }, \ 320 { "xerox_ns", CTLTYPE_NODE }, \ 321 { "iso", CTLTYPE_NODE }, \ 322 { "emca", CTLTYPE_NODE }, \ 323 { "datakit", CTLTYPE_NODE }, \ 324 { "ccitt", CTLTYPE_NODE }, \ 325 { "ibm_sna", CTLTYPE_NODE }, \ 326 { "decnet", CTLTYPE_NODE }, \ 327 { "dec_dli", CTLTYPE_NODE }, \ 328 { "lat", CTLTYPE_NODE }, \ 329 { "hylink", CTLTYPE_NODE }, \ 330 { "appletalk", CTLTYPE_NODE }, \ 331 { "route", CTLTYPE_NODE }, \ 332 { "link_layer", CTLTYPE_NODE }, \ 333 { "xtp", CTLTYPE_NODE }, \ 334 { "coip", CTLTYPE_NODE }, \ 335 { "cnt", CTLTYPE_NODE }, \ 336 { "rtip", CTLTYPE_NODE }, \ 337 { "ipx", CTLTYPE_NODE }, \ 338 { "sip", CTLTYPE_NODE }, \ 339 { "pip", CTLTYPE_NODE }, \ 340 { "isdn", CTLTYPE_NODE }, \ 341 { "key", CTLTYPE_NODE }, \ 342 { "inet6", CTLTYPE_NODE }, \ 343 { "natm", CTLTYPE_NODE }, \ 344 { "atm", CTLTYPE_NODE }, \ 345 { "hdrcomplete", CTLTYPE_NODE }, \ 346 { "netgraph", CTLTYPE_NODE }, \ 347 { "snp", CTLTYPE_NODE }, \ 348 { "scp", CTLTYPE_NODE }, \ 349} 350 351/* 352 * PF_ROUTE - Routing table 353 * 354 * Three additional levels are defined: 355 * Fourth: address family, 0 is wildcard 356 * Fifth: type of info, defined below 357 * Sixth: flag(s) to mask with for NET_RT_FLAGS 358 */ 359#define NET_RT_DUMP 1 /* dump; may limit to a.f. */ 360#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ 361#define NET_RT_IFLIST 3 /* survey interface list */ 362#define NET_RT_IFMALIST 4 /* return multicast address list */ 363#define NET_RT_MAXID 5 364 365#define CTL_NET_RT_NAMES { \ 366 { 0, 0 }, \ 367 { "dump", CTLTYPE_STRUCT }, \ 368 { "flags", CTLTYPE_STRUCT }, \ 369 { "iflist", CTLTYPE_STRUCT }, \ 370 { "ifmalist", CTLTYPE_STRUCT }, \ 371} 372#endif /* __BSD_VISIBLE */ 373 374/* 375 * Maximum queue length specifiable by listen. 376 */ 377#define SOMAXCONN 128 378 379/* 380 * Message header for recvmsg and sendmsg calls. 381 * Used value-result for recvmsg, value only for sendmsg. 382 */ 383struct msghdr { 384 void *msg_name; /* optional address */ 385 socklen_t msg_namelen; /* size of address */ 386 struct iovec *msg_iov; /* scatter/gather array */ 387 int msg_iovlen; /* # elements in msg_iov */ 388 void *msg_control; /* ancillary data, see below */ 389 socklen_t msg_controllen; /* ancillary data buffer len */ 390 int msg_flags; /* flags on received message */ 391}; 392 393#define MSG_OOB 0x1 /* process out-of-band data */ 394#define MSG_PEEK 0x2 /* peek at incoming message */ 395#define MSG_DONTROUTE 0x4 /* send without using routing tables */ 396#define MSG_EOR 0x8 /* data completes record */ 397#define MSG_TRUNC 0x10 /* data discarded before delivery */ 398#define MSG_CTRUNC 0x20 /* control data lost before delivery */ 399#define MSG_WAITALL 0x40 /* wait for full request or error */ 400#define MSG_NOTIFICATION 0x2000 /* SCTP notification */ 401#if __BSD_VISIBLE 402#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ 403#define MSG_EOF 0x100 /* data completes connection */ 404#define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */ 405#define MSG_COMPAT 0x8000 /* used in sendit() */ 406#endif 407#ifdef _KERNEL 408#define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */ 409#endif 410#if __BSD_VISIBLE 411#define MSG_NOSIGNAL 0x20000 /* do not generate SIGPIPE on EOF */ 412#endif 413 414/* 415 * Header for ancillary data objects in msg_control buffer. 416 * Used for additional information with/about a datagram 417 * not expressible by flags. The format is a sequence 418 * of message elements headed by cmsghdr structures. 419 */ 420struct cmsghdr { 421 socklen_t cmsg_len; /* data byte count, including hdr */ 422 int cmsg_level; /* originating protocol */ 423 int cmsg_type; /* protocol-specific type */ 424/* followed by u_char cmsg_data[]; */ 425}; 426 427#if __BSD_VISIBLE 428/* 429 * While we may have more groups than this, the cmsgcred struct must 430 * be able to fit in an mbuf, and NGROUPS_MAX is too large to allow 431 * this. 432*/ 433#define CMGROUP_MAX 16 434 435/* 436 * Credentials structure, used to verify the identity of a peer 437 * process that has sent us a message. This is allocated by the 438 * peer process but filled in by the kernel. This prevents the 439 * peer from lying about its identity. (Note that cmcred_groups[0] 440 * is the effective GID.) 441 */ 442struct cmsgcred { 443 pid_t cmcred_pid; /* PID of sending process */ 444 uid_t cmcred_uid; /* real UID of sending process */ 445 uid_t cmcred_euid; /* effective UID of sending process */ 446 gid_t cmcred_gid; /* real GID of sending process */ 447 short cmcred_ngroups; /* number or groups */ 448 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */ 449}; 450 451/* 452 * Socket credentials. 453 */ 454struct sockcred { 455 uid_t sc_uid; /* real user id */ 456 uid_t sc_euid; /* effective user id */ 457 gid_t sc_gid; /* real group id */ 458 gid_t sc_egid; /* effective group id */ 459 int sc_ngroups; /* number of supplemental groups */ 460 gid_t sc_groups[1]; /* variable length */ 461}; 462 463/* 464 * Compute size of a sockcred structure with groups. 465 */ 466#define SOCKCREDSIZE(ngrps) \ 467 (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1))) 468 469#endif /* __BSD_VISIBLE */ 470 471/* given pointer to struct cmsghdr, return pointer to data */ 472#define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 473 _ALIGN(sizeof(struct cmsghdr))) 474 475/* given pointer to struct cmsghdr, return pointer to next cmsghdr */ 476#define CMSG_NXTHDR(mhdr, cmsg) \ 477 ((char *)(cmsg) == NULL ? CMSG_FIRSTHDR(mhdr) : \ 478 ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \ 479 _ALIGN(sizeof(struct cmsghdr)) > \ 480 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \ 481 (struct cmsghdr *)0 : \ 482 (struct cmsghdr *)((char *)(cmsg) + \ 483 _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len))) 484 485/* 486 * RFC 2292 requires to check msg_controllen, in case that the kernel returns 487 * an empty list for some reasons. 488 */ 489#define CMSG_FIRSTHDR(mhdr) \ 490 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 491 (struct cmsghdr *)(mhdr)->msg_control : \ 492 (struct cmsghdr *)NULL) 493 494#if __BSD_VISIBLE 495/* RFC 2292 additions */ 496#define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l)) 497#define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l)) 498#endif 499 500#ifdef _KERNEL 501#define CMSG_ALIGN(n) _ALIGN(n) 502#endif 503 504/* "Socket"-level control message types: */ 505#define SCM_RIGHTS 0x01 /* access rights (array of int) */ 506#if __BSD_VISIBLE 507#define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ 508#define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */ 509#define SCM_BINTIME 0x04 /* timestamp (struct bintime) */ 510#endif 511 512#if __BSD_VISIBLE 513/* 514 * 4.3 compat sockaddr, move to compat file later 515 */ 516struct osockaddr { 517 unsigned short sa_family; /* address family */ 518 char sa_data[14]; /* up to 14 bytes of direct address */ 519}; 520 521/* 522 * 4.3-compat message header (move to compat file later). 523 */ 524struct omsghdr { 525 char *msg_name; /* optional address */ 526 int msg_namelen; /* size of address */ 527 struct iovec *msg_iov; /* scatter/gather array */ 528 int msg_iovlen; /* # elements in msg_iov */ 529 char *msg_accrights; /* access rights sent/received */ 530 int msg_accrightslen; 531}; 532#endif 533 534/* 535 * howto arguments for shutdown(2), specified by Posix.1g. 536 */ 537#define SHUT_RD 0 /* shut down the reading side */ 538#define SHUT_WR 1 /* shut down the writing side */ 539#define SHUT_RDWR 2 /* shut down both sides */ 540 541#if __BSD_VISIBLE 542/* 543 * sendfile(2) header/trailer struct 544 */ 545struct sf_hdtr { 546 struct iovec *headers; /* pointer to an array of header struct iovec's */ 547 int hdr_cnt; /* number of header iovec's */ 548 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */ 549 int trl_cnt; /* number of trailer iovec's */ 550}; 551 552/* 553 * Sendfile-specific flag(s) 554 */ 555#define SF_NODISKIO 0x00000001 556#define SF_MNOWAIT 0x00000002 557#endif 558 559#ifndef _KERNEL 560 561#include <sys/cdefs.h> 562 563__BEGIN_DECLS 564int accept(int, struct sockaddr * __restrict, socklen_t * __restrict); 565int bind(int, const struct sockaddr *, socklen_t); 566int connect(int, const struct sockaddr *, socklen_t); 567int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict); 568int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict); 569int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict); 570int listen(int, int); 571ssize_t recv(int, void *, size_t, int); 572ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict); 573ssize_t recvmsg(int, struct msghdr *, int); 574ssize_t send(int, const void *, size_t, int); 575ssize_t sendto(int, const void *, 576 size_t, int, const struct sockaddr *, socklen_t); 577ssize_t sendmsg(int, const struct msghdr *, int); 578#if __BSD_VISIBLE 579int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int); 580#endif 581int setsockopt(int, int, int, const void *, socklen_t); 582int shutdown(int, int); 583int sockatmark(int); 584int socket(int, int, int); 585int socketpair(int, int, int, int *); 586__END_DECLS 587 588#endif /* !_KERNEL */ 589 590#endif /* !_SYS_SOCKET_H_ */ 591