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 * $FreeBSD$ 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 52 typedef __gid_t gid_t; 53 #define _GID_T_DECLARED 54 #endif 55 56 #ifndef _OFF_T_DECLARED 57 typedef __off_t off_t; 58 #define _OFF_T_DECLARED 59 #endif 60 61 #ifndef _PID_T_DECLARED 62 typedef __pid_t pid_t; 63 #define _PID_T_DECLARED 64 #endif 65 #endif 66 67 #ifndef _SA_FAMILY_T_DECLARED 68 typedef __sa_family_t sa_family_t; 69 #define _SA_FAMILY_T_DECLARED 70 #endif 71 72 #ifndef _SOCKLEN_T_DECLARED 73 typedef __socklen_t socklen_t; 74 #define _SOCKLEN_T_DECLARED 75 #endif 76 77 #ifndef _SSIZE_T_DECLARED 78 typedef __ssize_t ssize_t; 79 #define _SSIZE_T_DECLARED 80 #endif 81 82 #if __BSD_VISIBLE 83 #ifndef _UID_T_DECLARED 84 typedef __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 #endif 137 138 /* 139 * Structure used for manipulating linger option. 140 */ 141 struct linger { 142 int l_onoff; /* option on/off */ 143 int l_linger; /* linger time */ 144 }; 145 146 #if __BSD_VISIBLE 147 struct accept_filter_arg { 148 char af_name[16]; 149 char af_arg[256-16]; 150 }; 151 #endif 152 153 /* 154 * Level number for (get/set)sockopt() to apply to socket itself. 155 */ 156 #define SOL_SOCKET 0xffff /* options for socket level */ 157 158 /* 159 * Address families. 160 */ 161 #define AF_UNSPEC 0 /* unspecified */ 162 #if __BSD_VISIBLE 163 #define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */ 164 #endif 165 #define AF_UNIX 1 /* standardized name for AF_LOCAL */ 166 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */ 167 #if __BSD_VISIBLE 168 #define AF_IMPLINK 3 /* arpanet imp addresses */ 169 #define AF_PUP 4 /* pup protocols: e.g. BSP */ 170 #define AF_CHAOS 5 /* mit CHAOS protocols */ 171 #define AF_NETBIOS 6 /* SMB protocols */ 172 #define AF_ISO 7 /* ISO protocols */ 173 #define AF_OSI AF_ISO 174 #define AF_ECMA 8 /* European computer manufacturers */ 175 #define AF_DATAKIT 9 /* datakit protocols */ 176 #define AF_CCITT 10 /* CCITT protocols, X.25 etc */ 177 #define AF_SNA 11 /* IBM SNA */ 178 #define AF_DECnet 12 /* DECnet */ 179 #define AF_DLI 13 /* DEC Direct data link interface */ 180 #define AF_LAT 14 /* LAT */ 181 #define AF_HYLINK 15 /* NSC Hyperchannel */ 182 #define AF_APPLETALK 16 /* Apple Talk */ 183 #define AF_ROUTE 17 /* Internal Routing Protocol */ 184 #define AF_LINK 18 /* Link layer interface */ 185 #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ 186 #define AF_COIP 20 /* connection-oriented IP, aka ST II */ 187 #define AF_CNT 21 /* Computer Network Technology */ 188 #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ 189 #define AF_IPX 23 /* Novell Internet Protocol */ 190 #define AF_SIP 24 /* Simple Internet Protocol */ 191 #define pseudo_AF_PIP 25 /* Help Identify PIP packets */ 192 #define AF_ISDN 26 /* Integrated Services Digital Network*/ 193 #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ 194 #define pseudo_AF_KEY 27 /* Internal key-management function */ 195 #endif 196 #define AF_INET6 28 /* IPv6 */ 197 #if __BSD_VISIBLE 198 #define AF_NATM 29 /* native ATM access */ 199 #define AF_ATM 30 /* ATM */ 200 #define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers 201 * in interface output routine 202 */ 203 #define AF_NETGRAPH 32 /* Netgraph sockets */ 204 #define AF_SLOW 33 /* 802.3ad slow protocol */ 205 #define AF_SCLUSTER 34 /* Sitara cluster protocol */ 206 #define AF_ARP 35 207 #define AF_BLUETOOTH 36 /* Bluetooth sockets */ 208 #define AF_MAX 37 209 #endif 210 211 /* 212 * Structure used by kernel to store most 213 * addresses. 214 */ 215 struct sockaddr { 216 unsigned char sa_len; /* total length */ 217 sa_family_t sa_family; /* address family */ 218 char sa_data[14]; /* actually longer; address value */ 219 }; 220 #if __BSD_VISIBLE 221 #define SOCK_MAXADDRLEN 255 /* longest possible addresses */ 222 223 /* 224 * Structure used by kernel to pass protocol 225 * information in raw sockets. 226 */ 227 struct sockproto { 228 unsigned short sp_family; /* address family */ 229 unsigned short sp_protocol; /* protocol */ 230 }; 231 #endif 232 233 /* 234 * RFC 2553: protocol-independent placeholder for socket addresses 235 */ 236 #define _SS_MAXSIZE 128U 237 #define _SS_ALIGNSIZE (sizeof(__int64_t)) 238 #define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(unsigned char) - \ 239 sizeof(sa_family_t)) 240 #define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(unsigned char) - \ 241 sizeof(sa_family_t) - _SS_PAD1SIZE - _SS_ALIGNSIZE) 242 243 struct sockaddr_storage { 244 unsigned char ss_len; /* address length */ 245 sa_family_t ss_family; /* address family */ 246 char __ss_pad1[_SS_PAD1SIZE]; 247 __int64_t __ss_align; /* force desired struct alignment */ 248 char __ss_pad2[_SS_PAD2SIZE]; 249 }; 250 251 #if __BSD_VISIBLE 252 /* 253 * Protocol families, same as address families for now. 254 */ 255 #define PF_UNSPEC AF_UNSPEC 256 #define PF_LOCAL AF_LOCAL 257 #define PF_UNIX PF_LOCAL /* backward compatibility */ 258 #define PF_INET AF_INET 259 #define PF_IMPLINK AF_IMPLINK 260 #define PF_PUP AF_PUP 261 #define PF_CHAOS AF_CHAOS 262 #define PF_NETBIOS AF_NETBIOS 263 #define PF_ISO AF_ISO 264 #define PF_OSI AF_ISO 265 #define PF_ECMA AF_ECMA 266 #define PF_DATAKIT AF_DATAKIT 267 #define PF_CCITT AF_CCITT 268 #define PF_SNA AF_SNA 269 #define PF_DECnet AF_DECnet 270 #define PF_DLI AF_DLI 271 #define PF_LAT AF_LAT 272 #define PF_HYLINK AF_HYLINK 273 #define PF_APPLETALK AF_APPLETALK 274 #define PF_ROUTE AF_ROUTE 275 #define PF_LINK AF_LINK 276 #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ 277 #define PF_COIP AF_COIP 278 #define PF_CNT AF_CNT 279 #define PF_SIP AF_SIP 280 #define PF_IPX AF_IPX 281 #define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ 282 #define PF_PIP pseudo_AF_PIP 283 #define PF_ISDN AF_ISDN 284 #define PF_KEY pseudo_AF_KEY 285 #define PF_INET6 AF_INET6 286 #define PF_NATM AF_NATM 287 #define PF_ATM AF_ATM 288 #define PF_NETGRAPH AF_NETGRAPH 289 #define PF_SLOW AF_SLOW 290 #define PF_SCLUSTER AF_SCLUSTER 291 #define PF_ARP AF_ARP 292 #define PF_BLUETOOTH AF_BLUETOOTH 293 294 #define PF_MAX AF_MAX 295 296 /* 297 * Definitions for network related sysctl, CTL_NET. 298 * 299 * Second level is protocol family. 300 * Third level is protocol number. 301 * 302 * Further levels are defined by the individual families below. 303 */ 304 #define NET_MAXID AF_MAX 305 306 #define CTL_NET_NAMES { \ 307 { 0, 0 }, \ 308 { "unix", CTLTYPE_NODE }, \ 309 { "inet", CTLTYPE_NODE }, \ 310 { "implink", CTLTYPE_NODE }, \ 311 { "pup", CTLTYPE_NODE }, \ 312 { "chaos", CTLTYPE_NODE }, \ 313 { "xerox_ns", CTLTYPE_NODE }, \ 314 { "iso", CTLTYPE_NODE }, \ 315 { "emca", CTLTYPE_NODE }, \ 316 { "datakit", CTLTYPE_NODE }, \ 317 { "ccitt", CTLTYPE_NODE }, \ 318 { "ibm_sna", CTLTYPE_NODE }, \ 319 { "decnet", CTLTYPE_NODE }, \ 320 { "dec_dli", CTLTYPE_NODE }, \ 321 { "lat", CTLTYPE_NODE }, \ 322 { "hylink", CTLTYPE_NODE }, \ 323 { "appletalk", CTLTYPE_NODE }, \ 324 { "route", CTLTYPE_NODE }, \ 325 { "link_layer", CTLTYPE_NODE }, \ 326 { "xtp", CTLTYPE_NODE }, \ 327 { "coip", CTLTYPE_NODE }, \ 328 { "cnt", CTLTYPE_NODE }, \ 329 { "rtip", CTLTYPE_NODE }, \ 330 { "ipx", CTLTYPE_NODE }, \ 331 { "sip", CTLTYPE_NODE }, \ 332 { "pip", CTLTYPE_NODE }, \ 333 { "isdn", CTLTYPE_NODE }, \ 334 { "key", CTLTYPE_NODE }, \ 335 { "inet6", CTLTYPE_NODE }, \ 336 { "natm", CTLTYPE_NODE }, \ 337 { "atm", CTLTYPE_NODE }, \ 338 { "hdrcomplete", CTLTYPE_NODE }, \ 339 { "netgraph", CTLTYPE_NODE }, \ 340 { "snp", CTLTYPE_NODE }, \ 341 { "scp", CTLTYPE_NODE }, \ 342 } 343 344 /* 345 * PF_ROUTE - Routing table 346 * 347 * Three additional levels are defined: 348 * Fourth: address family, 0 is wildcard 349 * Fifth: type of info, defined below 350 * Sixth: flag(s) to mask with for NET_RT_FLAGS 351 */ 352 #define NET_RT_DUMP 1 /* dump; may limit to a.f. */ 353 #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ 354 #define NET_RT_IFLIST 3 /* survey interface list */ 355 #define NET_RT_IFMALIST 4 /* return multicast address list */ 356 #define NET_RT_MAXID 5 357 358 #define CTL_NET_RT_NAMES { \ 359 { 0, 0 }, \ 360 { "dump", CTLTYPE_STRUCT }, \ 361 { "flags", CTLTYPE_STRUCT }, \ 362 { "iflist", CTLTYPE_STRUCT }, \ 363 { "ifmalist", CTLTYPE_STRUCT }, \ 364 } 365 #endif /* __BSD_VISIBLE */ 366 367 /* 368 * Maximum queue length specifiable by listen. 369 */ 370 #define SOMAXCONN 128 371 372 /* 373 * Message header for recvmsg and sendmsg calls. 374 * Used value-result for recvmsg, value only for sendmsg. 375 */ 376 struct msghdr { 377 void *msg_name; /* optional address */ 378 socklen_t msg_namelen; /* size of address */ 379 struct iovec *msg_iov; /* scatter/gather array */ 380 int msg_iovlen; /* # elements in msg_iov */ 381 void *msg_control; /* ancillary data, see below */ 382 socklen_t msg_controllen; /* ancillary data buffer len */ 383 int msg_flags; /* flags on received message */ 384 }; 385 386 #define MSG_OOB 0x1 /* process out-of-band data */ 387 #define MSG_PEEK 0x2 /* peek at incoming message */ 388 #define MSG_DONTROUTE 0x4 /* send without using routing tables */ 389 #define MSG_EOR 0x8 /* data completes record */ 390 #define MSG_TRUNC 0x10 /* data discarded before delivery */ 391 #define MSG_CTRUNC 0x20 /* control data lost before delivery */ 392 #define MSG_WAITALL 0x40 /* wait for full request or error */ 393 #if __BSD_VISIBLE 394 #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ 395 #define MSG_EOF 0x100 /* data completes connection */ 396 #define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */ 397 #define MSG_COMPAT 0x8000 /* used in sendit() */ 398 #endif 399 #ifdef _KERNEL 400 #define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */ 401 #endif 402 403 /* 404 * Header for ancillary data objects in msg_control buffer. 405 * Used for additional information with/about a datagram 406 * not expressible by flags. The format is a sequence 407 * of message elements headed by cmsghdr structures. 408 */ 409 struct cmsghdr { 410 socklen_t cmsg_len; /* data byte count, including hdr */ 411 int cmsg_level; /* originating protocol */ 412 int cmsg_type; /* protocol-specific type */ 413 /* followed by u_char cmsg_data[]; */ 414 }; 415 416 #if __BSD_VISIBLE 417 /* 418 * While we may have more groups than this, the cmsgcred struct must 419 * be able to fit in an mbuf, and NGROUPS_MAX is too large to allow 420 * this. 421 */ 422 #define CMGROUP_MAX 16 423 424 /* 425 * Credentials structure, used to verify the identity of a peer 426 * process that has sent us a message. This is allocated by the 427 * peer process but filled in by the kernel. This prevents the 428 * peer from lying about its identity. (Note that cmcred_groups[0] 429 * is the effective GID.) 430 */ 431 struct cmsgcred { 432 pid_t cmcred_pid; /* PID of sending process */ 433 uid_t cmcred_uid; /* real UID of sending process */ 434 uid_t cmcred_euid; /* effective UID of sending process */ 435 gid_t cmcred_gid; /* real GID of sending process */ 436 short cmcred_ngroups; /* number or groups */ 437 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */ 438 }; 439 #endif /* __BSD_VISIBLE */ 440 441 /* given pointer to struct cmsghdr, return pointer to data */ 442 #define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 443 _ALIGN(sizeof(struct cmsghdr))) 444 445 /* given pointer to struct cmsghdr, return pointer to next cmsghdr */ 446 #define CMSG_NXTHDR(mhdr, cmsg) \ 447 (((char *)(cmsg) + _ALIGN((cmsg)->cmsg_len) + \ 448 _ALIGN(sizeof(struct cmsghdr)) > \ 449 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \ 450 (struct cmsghdr *)0 : \ 451 (struct cmsghdr *)((char *)(cmsg) + _ALIGN((cmsg)->cmsg_len))) 452 453 /* 454 * RFC 2292 requires to check msg_controllen, in case that the kernel returns 455 * an empty list for some reasons. 456 */ 457 #define CMSG_FIRSTHDR(mhdr) \ 458 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 459 (struct cmsghdr *)(mhdr)->msg_control : \ 460 (struct cmsghdr *)NULL) 461 462 #if __BSD_VISIBLE 463 /* RFC 2292 additions */ 464 #define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l)) 465 #define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l)) 466 #endif 467 468 #ifdef _KERNEL 469 #define CMSG_ALIGN(n) _ALIGN(n) 470 #endif 471 472 /* "Socket"-level control message types: */ 473 #define SCM_RIGHTS 0x01 /* access rights (array of int) */ 474 #if __BSD_VISIBLE 475 #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ 476 #define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */ 477 #define SCM_BINTIME 0x04 /* timestamp (struct bintime) */ 478 #endif 479 480 #if __BSD_VISIBLE 481 /* 482 * 4.3 compat sockaddr, move to compat file later 483 */ 484 struct osockaddr { 485 unsigned short sa_family; /* address family */ 486 char sa_data[14]; /* up to 14 bytes of direct address */ 487 }; 488 489 /* 490 * 4.3-compat message header (move to compat file later). 491 */ 492 struct omsghdr { 493 char *msg_name; /* optional address */ 494 int msg_namelen; /* size of address */ 495 struct iovec *msg_iov; /* scatter/gather array */ 496 int msg_iovlen; /* # elements in msg_iov */ 497 char *msg_accrights; /* access rights sent/received */ 498 int msg_accrightslen; 499 }; 500 #endif 501 502 /* 503 * howto arguments for shutdown(2), specified by Posix.1g. 504 */ 505 #define SHUT_RD 0 /* shut down the reading side */ 506 #define SHUT_WR 1 /* shut down the writing side */ 507 #define SHUT_RDWR 2 /* shut down both sides */ 508 509 #if __BSD_VISIBLE 510 /* 511 * sendfile(2) header/trailer struct 512 */ 513 struct sf_hdtr { 514 struct iovec *headers; /* pointer to an array of header struct iovec's */ 515 int hdr_cnt; /* number of header iovec's */ 516 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */ 517 int trl_cnt; /* number of trailer iovec's */ 518 }; 519 520 /* 521 * Sendfile-specific flag(s) 522 */ 523 #define SF_NODISKIO 0x00000001 524 #endif 525 526 #ifndef _KERNEL 527 528 #include <sys/cdefs.h> 529 530 __BEGIN_DECLS 531 int accept(int, struct sockaddr * __restrict, socklen_t * __restrict); 532 int bind(int, const struct sockaddr *, socklen_t); 533 int connect(int, const struct sockaddr *, socklen_t); 534 int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict); 535 int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict); 536 int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict); 537 int listen(int, int); 538 ssize_t recv(int, void *, size_t, int); 539 ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict); 540 ssize_t recvmsg(int, struct msghdr *, int); 541 ssize_t send(int, const void *, size_t, int); 542 ssize_t sendto(int, const void *, 543 size_t, int, const struct sockaddr *, socklen_t); 544 ssize_t sendmsg(int, const struct msghdr *, int); 545 #if __BSD_VISIBLE 546 int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int); 547 #endif 548 int setsockopt(int, int, int, const void *, socklen_t); 549 int shutdown(int, int); 550 int sockatmark(int); 551 int socket(int, int, int); 552 int socketpair(int, int, int, int *); 553 __END_DECLS 554 555 #endif /* !_KERNEL */ 556 557 #endif /* !_SYS_SOCKET_H_ */ 558