1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
23 *
24 * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
25 * Copyright 2015, Joyent, Inc. All rights reserved.
26 */
27
28 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
29 /* All Rights Reserved */
30
31 /*
32 * University Copyright- Copyright (c) 1982, 1986, 1988
33 * The Regents of the University of California
34 * All Rights Reserved
35 *
36 * University Acknowledgment- Portions of this document are derived from
37 * software developed by the University of California, Berkeley, and its
38 * contributors.
39 */
40
41 /* Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved. */
42
43 #ifndef _SYS_SOCKET_H
44 #define _SYS_SOCKET_H
45
46 #include <sys/types.h>
47 #include <sys/uio.h>
48 #include <sys/feature_tests.h>
49 #include <sys/socket_impl.h>
50 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
51 #ifndef _KERNEL
52 #include <sys/netconfig.h>
53 #endif /* !_KERNEL */
54 /*
55 * Historically, netinet/in.h included sys/stream.h, which pulled in
56 * several things. The more troublesome namespace pollution was from
57 * sys/stream.h so that was removed. To avoid having to fix lots of
58 * programs, pull in a few things that are now (for better or worse)
59 * expected by programs that include sys/socket.h
60 */
61 #include <sys/param.h>
62 #include <sys/cred.h>
63 #include <sys/poll.h>
64 #include <netinet/in.h>
65 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
66
67 #ifdef __cplusplus
68 extern "C" {
69 #endif
70
71 #ifndef _SOCKLEN_T
72 #define _SOCKLEN_T
73
74 /*
75 * The socklen definitions are reproduced in netinet/in.h for the inet6_
76 * functions. Exposing all of sys/socket.h via netinet/in.h breaks existing
77 * applications and is not required by austin.
78 */
79 #if defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64)
80 typedef size_t socklen_t;
81 #else
82 typedef uint32_t socklen_t;
83 #endif /* defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64) */
84
85 #if defined(_XPG4_2) || defined(_BOOT)
86 typedef socklen_t *_RESTRICT_KYWD Psocklen_t;
87 #else
88 typedef void *_RESTRICT_KYWD Psocklen_t;
89 #endif /* defined(_XPG4_2) || defined(_BOOT) */
90
91 #endif /* _SOCKLEN_T */
92
93 /*
94 * Definitions related to sockets: types, address families, options.
95 */
96 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
97 #ifndef NC_TPI_CLTS
98 #define NC_TPI_CLTS 1 /* must agree with netconfig.h */
99 #define NC_TPI_COTS 2 /* must agree with netconfig.h */
100 #define NC_TPI_COTS_ORD 3 /* must agree with netconfig.h */
101 #define NC_TPI_RAW 4 /* must agree with netconfig.h */
102 #endif /* !NC_TPI_CLTS */
103 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
104
105 /*
106 * Types
107 */
108 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
109 #define SOCK_STREAM NC_TPI_COTS /* stream socket */
110 #define SOCK_DGRAM NC_TPI_CLTS /* datagram socket */
111 #define SOCK_RAW NC_TPI_RAW /* raw-protocol interface */
112 #else
113 #define SOCK_STREAM 2 /* stream socket */
114 #define SOCK_DGRAM 1 /* datagram socket */
115 #define SOCK_RAW 4 /* raw-protocol interface */
116 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
117 #define SOCK_RDM 5 /* reliably-delivered message */
118 #define SOCK_SEQPACKET 6 /* sequenced packet stream */
119 #define SOCK_TYPE_MASK 0xffff /* type reside in these bits only */
120
121 /*
122 * Flags for socket() and accept4()
123 */
124 #define SOCK_CLOEXEC 0x080000 /* like open(2) O_CLOEXEC for socket */
125 #define SOCK_NONBLOCK 0x100000 /* like O_NONBLOCK */
126 #define SOCK_NDELAY 0x200000 /* like O_NDELAY */
127
128 /*
129 * Option flags per-socket.
130 */
131 #define SO_DEBUG 0x0001 /* turn on debugging info recording */
132 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
133 #define SO_REUSEADDR 0x0004 /* allow local address reuse */
134 #define SO_KEEPALIVE 0x0008 /* keep connections alive */
135 #define SO_DONTROUTE 0x0010 /* just use interface addresses */
136 #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
137 #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
138 #define SO_LINGER 0x0080 /* linger on close if data present */
139 #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
140 #define SO_DGRAM_ERRIND 0x0200 /* Application wants delayed error */
141 #define SO_RECVUCRED 0x0400 /* Application wants ucred of sender */
142
143 /*
144 * Socket options are passed using a signed integer, but it is also rare
145 * for more than one to ever be passed at the same time with setsockopt
146 * and only one at a time can be retrieved with getsockopt.
147 *
148 * Since the lower numbers cannot be renumbered for compatibility reasons,
149 * it would seem that we need to start a new number space (0x40000000 -
150 * 0x7fffffff) for those that don't need to be stored as a bit flag
151 * somewhere. This limits the flag options to 30 but that seems to be
152 * plenty, anyway. 0x40000000 is reserved for future use.
153 */
154 #define SO_ATTACH_FILTER 0x40000001
155 #define SO_DETACH_FILTER 0x40000002
156
157 #ifdef _KERNEL
158 #define SO_SND_COPYAVOID 0x0800 /* Internal: use zero-copy */
159 #define SO_SND_BUFINFO 0x1000 /* Internal: get buffer info */
160 /* when doing zero-copy */
161
162 struct so_snd_bufinfo {
163 ushort_t sbi_wroff; /* Write offset */
164 ssize_t sbi_maxblk; /* Max size of a single mblk */
165 ssize_t sbi_maxpsz; /* Max total size of a mblk chain */
166 ushort_t sbi_tail; /* Extra space available at the end */
167 };
168 #endif /* _KERNEL */
169
170 /*
171 * N.B.: The following definition is present only for compatibility
172 * with release 3.0. It will disappear in later releases.
173 */
174 #define SO_DONTLINGER (~SO_LINGER) /* ~SO_LINGER */
175
176 /*
177 * Additional options, not kept in so_options.
178 */
179 #define SO_SNDBUF 0x1001 /* send buffer size */
180 #define SO_RCVBUF 0x1002 /* receive buffer size */
181 #define SO_SNDLOWAT 0x1003 /* send low-water mark */
182 #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
183 #define SO_SNDTIMEO 0x1005 /* send timeout */
184 #define SO_RCVTIMEO 0x1006 /* receive timeout */
185 #define SO_ERROR 0x1007 /* get error status and clear */
186 #define SO_TYPE 0x1008 /* get socket type */
187 #define SO_PROTOTYPE 0x1009 /* get/set protocol type */
188 #define SO_ANON_MLP 0x100a /* create MLP on anonymous bind */
189 #define SO_MAC_EXEMPT 0x100b /* allow dominated unlabeled peers */
190 #define SO_DOMAIN 0x100c /* get socket domain */
191 #define SO_RCVPSH 0x100d /* receive interval to push data */
192
193 /* "Socket"-level control message types: */
194 #define SCM_RIGHTS 0x1010 /* access rights (array of int) */
195 #define SO_SECATTR 0x1011 /* socket's security attributes */
196 #define SCM_UCRED 0x1012 /* sender's ucred */
197 #define SO_TIMESTAMP 0x1013 /* socket-level timestamp option */
198 #define SCM_TIMESTAMP SO_TIMESTAMP /* socket control message timestamp */
199 #define SO_ALLZONES 0x1014 /* bind in all zones */
200 #define SO_EXCLBIND 0x1015 /* exclusive binding */
201 #define SO_MAC_IMPLICIT 0x1016 /* hide mac labels on wire */
202 #define SO_VRRP 0x1017 /* VRRP control socket */
203
204 #ifdef _KERNEL
205 #define SO_SRCADDR 0x2001 /* Internal: AF_UNIX source address */
206 #define SO_FILEP 0x2002 /* Internal: AF_UNIX file pointer */
207 #define SO_UNIX_CLOSE 0x2003 /* Internal: AF_UNIX peer closed */
208 #endif /* _KERNEL */
209
210 /*
211 * Socket filter options
212 */
213 #define FIL_ATTACH 0x1 /* attach filter */
214 #define FIL_DETACH 0x2 /* detach filter */
215 #define FIL_LIST 0x3 /* list attached filters */
216
217 #define FILNAME_MAX 32
218 /*
219 * Structure returned by FIL_LIST
220 */
221 struct fil_info {
222 int fi_flags; /* see below (FILF_*) */
223 int fi_pos; /* position (0 is bottom) */
224 char fi_name[FILNAME_MAX]; /* filter name */
225 };
226
227 #define FILF_PROG 0x1 /* programmatic attach */
228 #define FILF_AUTO 0x2 /* automatic attach */
229 #define FILF_BYPASS 0x4 /* filter is not active */
230
231 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
232 /*
233 * new socket open flags to identify socket and acceptor streams
234 */
235 #define SO_ACCEPTOR 0x20000 /* acceptor socket */
236 #define SO_SOCKSTR 0x40000 /* normal socket stream */
237 #define SO_FALLBACK 0x80000 /* fallback to TPI socket */
238
239 /*
240 * Flags for socket_create() and socket_newconn()
241 */
242 #define SOCKET_SLEEP KM_SLEEP
243 #define SOCKET_NOSLEEP KM_NOSLEEP
244
245 #endif /* _KERNEL */
246
247 /*
248 * Structure used for manipulating linger option.
249 */
250 struct linger {
251 int l_onoff; /* option on/off */
252 int l_linger; /* linger time */
253 };
254
255 /*
256 * Levels for (get/set)sockopt() that don't apply to a specific protocol.
257 */
258 #define SOL_SOCKET 0xffff /* options for socket level */
259 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
260 #define SOL_ROUTE 0xfffe /* options for routing socket level */
261 #endif
262 #define SOL_PACKET 0xfffd /* options for packet level */
263 #define SOL_FILTER 0xfffc /* options for socket filter level */
264
265 /*
266 * Address families.
267 *
268 * Some of these constant names are copied for the DTrace IP provider in
269 * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept
270 * in sync.
271 */
272 #define AF_UNSPEC 0 /* unspecified */
273 #define AF_UNIX 1 /* local to host (pipes, portals) */
274 #define AF_LOCAL AF_UNIX /* Synonym for AF_UNIX */
275 #define AF_FILE AF_UNIX /* Synonym for AF_UNIX */
276 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
277 #define AF_IMPLINK 3 /* arpanet imp addresses */
278 #define AF_PUP 4 /* pup protocols: e.g. BSP */
279 #define AF_CHAOS 5 /* mit CHAOS protocols */
280 #define AF_NS 6 /* XEROX NS protocols */
281 #define AF_NBS 7 /* nbs protocols */
282 #define AF_ECMA 8 /* european computer manufacturers */
283 #define AF_DATAKIT 9 /* datakit protocols */
284 #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
285 #define AF_SNA 11 /* IBM SNA */
286 #define AF_DECnet 12 /* DECnet */
287 #define AF_DLI 13 /* Direct data link interface */
288 #define AF_LAT 14 /* LAT */
289 #define AF_HYLINK 15 /* NSC Hyperchannel */
290 #define AF_APPLETALK 16 /* Apple Talk */
291 #define AF_NIT 17 /* Network Interface Tap */
292 #define AF_802 18 /* IEEE 802.2, also ISO 8802 */
293 #define AF_OSI 19 /* umbrella for all families used */
294 #define AF_X25 20 /* CCITT X.25 in particular */
295 #define AF_OSINET 21 /* AFI = 47, IDI = 4 */
296 #define AF_GOSIP 22 /* U.S. Government OSI */
297 #define AF_IPX 23 /* Novell Internet Protocol */
298 #define AF_ROUTE 24 /* Internal Routing Protocol */
299 #define AF_LINK 25 /* Link-layer interface */
300 #define AF_INET6 26 /* Internet Protocol, Version 6 */
301 #define AF_KEY 27 /* Security Association DB socket */
302 #define AF_NCA 28 /* NCA socket */
303 #define AF_POLICY 29 /* Security Policy DB socket */
304 #define AF_INET_OFFLOAD 30 /* Sun private; do not use */
305 #define AF_TRILL 31 /* TRILL interface */
306 #define AF_PACKET 32 /* PF_PACKET Linux socket interface */
307
308 #define AF_MAX 32
309
310 /*
311 * Protocol families, same as address families for now.
312 */
313 #define PF_UNSPEC AF_UNSPEC
314 #define PF_UNIX AF_UNIX
315 #define PF_LOCAL PF_UNIX
316 #define PF_FILE PF_UNIX
317 #define PF_INET AF_INET
318 #define PF_IMPLINK AF_IMPLINK
319 #define PF_PUP AF_PUP
320 #define PF_CHAOS AF_CHAOS
321 #define PF_NS AF_NS
322 #define PF_NBS AF_NBS
323 #define PF_ECMA AF_ECMA
324 #define PF_DATAKIT AF_DATAKIT
325 #define PF_CCITT AF_CCITT
326 #define PF_SNA AF_SNA
327 #define PF_DECnet AF_DECnet
328 #define PF_DLI AF_DLI
329 #define PF_LAT AF_LAT
330 #define PF_HYLINK AF_HYLINK
331 #define PF_APPLETALK AF_APPLETALK
332 #define PF_NIT AF_NIT
333 #define PF_802 AF_802
334 #define PF_OSI AF_OSI
335 #define PF_X25 AF_X25
336 #define PF_OSINET AF_OSINET
337 #define PF_GOSIP AF_GOSIP
338 #define PF_IPX AF_IPX
339 #define PF_ROUTE AF_ROUTE
340 #define PF_LINK AF_LINK
341 #define PF_INET6 AF_INET6
342 #define PF_KEY AF_KEY
343 #define PF_NCA AF_NCA
344 #define PF_POLICY AF_POLICY
345 #define PF_INET_OFFLOAD AF_INET_OFFLOAD /* Sun private; do not use */
346 #define PF_TRILL AF_TRILL
347 #define PF_PACKET AF_PACKET
348
349 #define PF_MAX AF_MAX
350
351 /*
352 * Maximum queue length specifiable by listen.
353 */
354 #define SOMAXCONN 128
355
356 /*
357 * Message header for recvmsg and sendmsg calls.
358 */
359 struct msghdr {
360 void *msg_name; /* optional address */
361 socklen_t msg_namelen; /* size of address */
362 struct iovec *msg_iov; /* scatter/gather array */
363 int msg_iovlen; /* # elements in msg_iov */
364
365 #if defined(_XPG4_2) || defined(_KERNEL)
366 void *msg_control; /* ancillary data */
367 socklen_t msg_controllen; /* ancillary data buffer len */
368 int msg_flags; /* flags on received message */
369 #else
370 caddr_t msg_accrights; /* access rights sent/received */
371 int msg_accrightslen;
372 #endif /* defined(_XPG4_2) || defined(_KERNEL) */
373 };
374
375 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
376
377 /*
378 * N.B.: we assume that omsghdr and nmsghdr are isomorphic, with
379 * the sole exception that nmsghdr has the additional msg_flags
380 * field at the end.
381 */
382 struct omsghdr {
383 void *msg_name; /* optional address */
384 socklen_t msg_namelen; /* size of address */
385 struct iovec *msg_iov; /* scatter/gather array */
386 int msg_iovlen; /* # elements in msg_iov */
387 caddr_t msg_accrights; /* access rights sent/received */
388 int msg_accrightslen;
389 };
390
391 #define nmsghdr msghdr
392
393 #if defined(_SYSCALL32)
394
395 struct omsghdr32 {
396 caddr32_t msg_name; /* optional address */
397 uint32_t msg_namelen; /* size of address */
398 caddr32_t msg_iov; /* scatter/gather array */
399 int32_t msg_iovlen; /* # elements in msg_iov */
400 caddr32_t msg_accrights; /* access rights sent/received */
401 uint32_t msg_accrightslen;
402 };
403
404 struct msghdr32 {
405 caddr32_t msg_name; /* optional address */
406 uint32_t msg_namelen; /* size of address */
407 caddr32_t msg_iov; /* scatter/gather array */
408 int32_t msg_iovlen; /* # elements in msg_iov */
409 caddr32_t msg_control; /* ancillary data */
410 uint32_t msg_controllen; /* ancillary data buffer len */
411 int32_t msg_flags; /* flags on received message */
412 };
413
414 #define nmsghdr32 msghdr32
415
416 #endif /* _SYSCALL32 */
417 #endif /* _KERNEL */
418
419 #define MSG_OOB 0x1 /* process out-of-band data */
420 #define MSG_PEEK 0x2 /* peek at incoming message */
421 #define MSG_DONTROUTE 0x4 /* send without using routing tables */
422 #define MSG_EOR 0x8 /* Terminates a record */
423 #define MSG_CTRUNC 0x10 /* Control data truncated */
424 #define MSG_TRUNC 0x20 /* Normal data truncated */
425 #define MSG_WAITALL 0x40 /* Wait for complete recv or error */
426 #define MSG_DONTWAIT 0x80 /* Don't block for this recv */
427 #define MSG_NOTIFICATION 0x100 /* Notification, not data */
428 #define MSG_NOSIGNAL 0x200 /* Don't generate SIGPIPE */
429 #define MSG_DUPCTRL 0x800 /* Save control message for use with */
430 /* with left over data */
431 #define MSG_XPG4_2 0x8000 /* Private: XPG4.2 flag */
432
433 /* Obsolete but kept for compilation compatability. Use IOV_MAX. */
434 #define MSG_MAXIOVLEN 16
435
436 #ifdef _KERNEL
437
438 /*
439 * Internal-only MSG_... flags
440 */
441
442 #define MSG_SENDTO_NOXLATE 0x08000000 /* Skip so_ux_addr_xlate */
443
444 #define MSG_MBLK_QUICKRELE 0x10000000 /* free mblk chain */
445 /* in timely manner */
446 #define MSG_USERSPACE 0x20000000 /* buffer from user space */
447
448 #endif /* _KERNEL */
449
450
451 /* Added for XPGv2 compliance */
452 #define SHUT_RD 0
453 #define SHUT_WR 1
454 #define SHUT_RDWR 2
455
456 struct cmsghdr {
457 socklen_t cmsg_len; /* data byte count, including hdr */
458 int cmsg_level; /* originating protocol */
459 int cmsg_type; /* protocol-specific type */
460 };
461
462 #if defined(_XPG4_2) || defined(_KERNEL)
463 #if defined(__sparc)
464 /* To maintain backward compatibility, alignment needs to be 8 on sparc. */
465 #define _CMSG_HDR_ALIGNMENT 8
466 #else
467 /* for __i386 (and other future architectures) */
468 #define _CMSG_HDR_ALIGNMENT 4
469 #endif /* defined(__sparc) */
470 #endif /* defined(_XPG4_2) || defined(_KERNEL) */
471
472 #if defined(_XPG4_2)
473 /*
474 * The cmsg headers (and macros dealing with them) were made available as
475 * part of UNIX95 and hence need to be protected with a _XPG4_2 define.
476 */
477 #define _CMSG_DATA_ALIGNMENT (sizeof (int))
478 #define _CMSG_HDR_ALIGN(x) (((uintptr_t)(x) + _CMSG_HDR_ALIGNMENT - 1) & \
479 ~(_CMSG_HDR_ALIGNMENT - 1))
480 #define _CMSG_DATA_ALIGN(x) (((uintptr_t)(x) + _CMSG_DATA_ALIGNMENT - 1) & \
481 ~(_CMSG_DATA_ALIGNMENT - 1))
482 #define CMSG_DATA(c) \
483 ((unsigned char *)_CMSG_DATA_ALIGN((struct cmsghdr *)(c) + 1))
484
485 #define CMSG_FIRSTHDR(m) \
486 (((m)->msg_controllen < sizeof (struct cmsghdr)) ? \
487 (struct cmsghdr *)0 : (struct cmsghdr *)((m)->msg_control))
488
489 #define CMSG_NXTHDR(m, c) \
490 (((c) == 0) ? CMSG_FIRSTHDR(m) : \
491 ((((uintptr_t)_CMSG_HDR_ALIGN((char *)(c) + \
492 ((struct cmsghdr *)(c))->cmsg_len) + sizeof (struct cmsghdr)) > \
493 (((uintptr_t)((struct msghdr *)(m))->msg_control) + \
494 ((uintptr_t)((struct msghdr *)(m))->msg_controllen))) ? \
495 ((struct cmsghdr *)0) : \
496 ((struct cmsghdr *)_CMSG_HDR_ALIGN((char *)(c) + \
497 ((struct cmsghdr *)(c))->cmsg_len))))
498
499 /* Amount of space + padding needed for a message of length l */
500 #define CMSG_SPACE(l) \
501 ((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l)))
502
503 /* Value to be used in cmsg_len, does not include trailing padding */
504 #define CMSG_LEN(l) \
505 ((unsigned int)_CMSG_DATA_ALIGN(sizeof (struct cmsghdr)) + (l))
506
507 #endif /* _XPG4_2 */
508
509 #ifdef _XPG4_2
510 #ifdef __PRAGMA_REDEFINE_EXTNAME
511 #pragma redefine_extname bind __xnet_bind
512 #pragma redefine_extname connect __xnet_connect
513 #pragma redefine_extname recvmsg __xnet_recvmsg
514 #pragma redefine_extname sendmsg __xnet_sendmsg
515 #pragma redefine_extname sendto __xnet_sendto
516 #pragma redefine_extname socket __xnet_socket
517 #pragma redefine_extname socketpair __xnet_socketpair
518 #pragma redefine_extname getsockopt __xnet_getsockopt
519 #else /* __PRAGMA_REDEFINE_EXTNAME */
520 #define bind __xnet_bind
521 #define connect __xnet_connect
522 #define recvmsg __xnet_recvmsg
523 #define sendmsg __xnet_sendmsg
524 #define sendto __xnet_sendto
525 #define socket __xnet_socket
526 #define socketpair __xnet_socketpair
527 #define getsockopt __xnet_getsockopt
528 #endif /* __PRAGMA_REDEFINE_EXTNAME */
529
530 #endif /* _XPG4_2 */
531
532 #if defined(_XPG4_2) && !defined(_XPG5)
533 #ifdef __PRAGMA_REDEFINE_EXTNAME
534 #pragma redefine_extname listen __xnet_listen
535 #else /* __PRAGMA_REDEFINE_EXTNAME */
536 #define listen __xnet_listen
537 #endif /* __PRAGMA_REDEFINE_EXTNAME */
538 #endif /* (_XPG4_2) && !defined(_XPG5) */
539
540 #if !defined(_KERNEL) || defined(_BOOT)
541 extern int accept(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
542 extern int accept4(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t, int);
543 extern int bind(int, const struct sockaddr *, socklen_t);
544 extern int connect(int, const struct sockaddr *, socklen_t);
545 extern int getpeername(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
546 extern int getsockname(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
547 extern int getsockopt(int, int, int, void *_RESTRICT_KYWD, Psocklen_t);
548 extern int listen(int, int); /* XXX - fixme??? where do I go */
549 extern int socketpair(int, int, int, int *);
550 extern ssize_t recv(int, void *, size_t, int);
551 extern ssize_t recvfrom(int, void *_RESTRICT_KYWD, size_t, int,
552 struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
553 extern ssize_t recvmsg(int, struct msghdr *, int);
554 extern ssize_t send(int, const void *, size_t, int);
555 extern ssize_t sendmsg(int, const struct msghdr *, int);
556 extern ssize_t sendto(int, const void *, size_t, int, const struct sockaddr *,
557 socklen_t);
558 extern int setsockopt(int, int, int, const void *, socklen_t);
559 extern int shutdown(int, int);
560 extern int socket(int, int, int);
561
562 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
563 extern int sockatmark(int);
564 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
565 #endif /* !defined(_KERNEL) || defined(_BOOT) */
566
567 #ifdef __cplusplus
568 }
569 #endif
570
571 #endif /* _SYS_SOCKET_H */