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 /*
44 * Copyright (c) 2014, Joyent, Inc. All rights reserved.
45 */
46 #ifndef _SYS_SOCKET_H
47 #define _SYS_SOCKET_H
48
49 #include <sys/types.h>
50 #include <sys/uio.h>
51 #include <sys/feature_tests.h>
52 #include <sys/socket_impl.h>
53 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
54 #ifndef _KERNEL
55 #include <sys/netconfig.h>
56 #endif /* !_KERNEL */
57 #include <netinet/in.h>
58 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
59
60 #ifdef __cplusplus
61 extern "C" {
62 #endif
63
64 #ifndef _SOCKLEN_T
65 #define _SOCKLEN_T
66
67 /*
68 * The socklen definitions are reproduced in netinet/in.h for the inet6_
69 * functions. Exposing all of sys/socket.h via netinet/in.h breaks existing
70 * applications and is not required by austin.
71 */
72 #if defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64)
73 typedef size_t socklen_t;
74 #else
75 typedef uint32_t socklen_t;
76 #endif /* defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64) */
77
78 #if defined(_XPG4_2) || defined(_BOOT)
79 typedef socklen_t *_RESTRICT_KYWD Psocklen_t;
80 #else
81 typedef void *_RESTRICT_KYWD Psocklen_t;
82 #endif /* defined(_XPG4_2) || defined(_BOOT) */
83
84 #endif /* _SOCKLEN_T */
85
86 /*
87 * Definitions related to sockets: types, address families, options.
88 */
89 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
90 #ifndef NC_TPI_CLTS
91 #define NC_TPI_CLTS 1 /* must agree with netconfig.h */
92 #define NC_TPI_COTS 2 /* must agree with netconfig.h */
93 #define NC_TPI_COTS_ORD 3 /* must agree with netconfig.h */
94 #define NC_TPI_RAW 4 /* must agree with netconfig.h */
95 #endif /* !NC_TPI_CLTS */
96 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
97
98 /*
99 * Types
100 */
101 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
102 #define SOCK_STREAM NC_TPI_COTS /* stream socket */
103 #define SOCK_DGRAM NC_TPI_CLTS /* datagram socket */
104 #define SOCK_RAW NC_TPI_RAW /* raw-protocol interface */
105 #else
106 #define SOCK_STREAM 2 /* stream socket */
107 #define SOCK_DGRAM 1 /* datagram socket */
108 #define SOCK_RAW 4 /* raw-protocol interface */
109 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
110 #define SOCK_RDM 5 /* reliably-delivered message */
111 #define SOCK_SEQPACKET 6 /* sequenced packet stream */
112 #define SOCK_TYPE_MASK 0xffff /* type reside in these bits only */
113
114 /*
115 * Flags for socket() and accept4()
116 */
117 #define SOCK_CLOEXEC 0x080000 /* like open(2) O_CLOEXEC for socket */
118 #define SOCK_NONBLOCK 0x100000 /* like O_NONBLOCK */
119 #define SOCK_NDELAY 0x200000 /* like O_NDELAY */
120
121 /*
122 * Option flags per-socket.
123 */
124 #define SO_DEBUG 0x0001 /* turn on debugging info recording */
125 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
126 #define SO_REUSEADDR 0x0004 /* allow local address reuse */
127 #define SO_KEEPALIVE 0x0008 /* keep connections alive */
128 #define SO_DONTROUTE 0x0010 /* just use interface addresses */
129 #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
130 #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
131 #define SO_LINGER 0x0080 /* linger on close if data present */
132 #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
133 #define SO_DGRAM_ERRIND 0x0200 /* Application wants delayed error */
134 #define SO_RECVUCRED 0x0400 /* Application wants ucred of sender */
135
136 /*
137 * Socket options are passed using a signed integer, but it is also rare
138 * for more than one to ever be passed at the same time with setsockopt
139 * and only one at a time can be retrieved with getsockopt.
140 *
141 * Since the lower numbers cannot be renumbered for compatibility reasons,
142 * it would seem that we need to start a new number space (0x40000000 -
143 * 0x7fffffff) for those that don't need to be stored as a bit flag
144 * somewhere. This limits the flag options to 30 but that seems to be
145 * plenty, anyway. 0x40000000 is reserved for future use.
146 */
147 #define SO_ATTACH_FILTER 0x40000001
148 #define SO_DETACH_FILTER 0x40000002
149
150 #ifdef _KERNEL
151 #define SO_SND_COPYAVOID 0x0800 /* Internal: use zero-copy */
152 #define SO_SND_BUFINFO 0x1000 /* Internal: get buffer info */
153 /* when doing zero-copy */
154
155 struct so_snd_bufinfo {
156 ushort_t sbi_wroff; /* Write offset */
157 ssize_t sbi_maxblk; /* Max size of a single mblk */
158 ssize_t sbi_maxpsz; /* Max total size of a mblk chain */
159 ushort_t sbi_tail; /* Extra space available at the end */
160 };
161 #endif /* _KERNEL */
162
163 /*
164 * N.B.: The following definition is present only for compatibility
165 * with release 3.0. It will disappear in later releases.
166 */
167 #define SO_DONTLINGER (~SO_LINGER) /* ~SO_LINGER */
168
169 /*
170 * Additional options, not kept in so_options.
171 */
172 #define SO_SNDBUF 0x1001 /* send buffer size */
173 #define SO_RCVBUF 0x1002 /* receive buffer size */
174 #define SO_SNDLOWAT 0x1003 /* send low-water mark */
175 #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
176 #define SO_SNDTIMEO 0x1005 /* send timeout */
177 #define SO_RCVTIMEO 0x1006 /* receive timeout */
178 #define SO_ERROR 0x1007 /* get error status and clear */
179 #define SO_TYPE 0x1008 /* get socket type */
180 #define SO_PROTOTYPE 0x1009 /* get/set protocol type */
181 #define SO_ANON_MLP 0x100a /* create MLP on anonymous bind */
182 #define SO_MAC_EXEMPT 0x100b /* allow dominated unlabeled peers */
183 #define SO_DOMAIN 0x100c /* get socket domain */
184 #define SO_RCVPSH 0x100d /* receive interval to push data */
185
186 /* "Socket"-level control message types: */
187 #define SCM_RIGHTS 0x1010 /* access rights (array of int) */
188 #define SO_SECATTR 0x1011 /* socket's security attributes */
189 #define SCM_UCRED 0x1012 /* sender's ucred */
190 #define SO_TIMESTAMP 0x1013 /* socket-level timestamp option */
191 #define SCM_TIMESTAMP SO_TIMESTAMP /* socket control message timestamp */
192 #define SO_ALLZONES 0x1014 /* bind in all zones */
193 #define SO_EXCLBIND 0x1015 /* exclusive binding */
194 #define SO_MAC_IMPLICIT 0x1016 /* hide mac labels on wire */
195 #define SO_VRRP 0x1017 /* VRRP control socket */
196
197 #ifdef _KERNEL
198 #define SO_SRCADDR 0x2001 /* Internal: AF_UNIX source address */
199 #define SO_FILEP 0x2002 /* Internal: AF_UNIX file pointer */
200 #define SO_UNIX_CLOSE 0x2003 /* Internal: AF_UNIX peer closed */
201 #define SO_REUSEPORT 0x2004 /* allow simultaneous port reuse */
202 #endif /* _KERNEL */
203
204 /*
205 * Socket filter options
206 */
207 #define FIL_ATTACH 0x1 /* attach filter */
208 #define FIL_DETACH 0x2 /* detach filter */
209 #define FIL_LIST 0x3 /* list attached filters */
210
211 #define FILNAME_MAX 32
212 /*
213 * Structure returned by FIL_LIST
214 */
215 struct fil_info {
216 int fi_flags; /* see below (FILF_*) */
217 int fi_pos; /* position (0 is bottom) */
218 char fi_name[FILNAME_MAX]; /* filter name */
219 };
220
221 #define FILF_PROG 0x1 /* programmatic attach */
222 #define FILF_AUTO 0x2 /* automatic attach */
223 #define FILF_BYPASS 0x4 /* filter is not active */
224
225 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
226 /*
227 * new socket open flags to identify socket and acceptor streams
228 */
229 #define SO_ACCEPTOR 0x20000 /* acceptor socket */
230 #define SO_SOCKSTR 0x40000 /* normal socket stream */
231 #define SO_FALLBACK 0x80000 /* fallback to TPI socket */
232
233 /*
234 * Flags for socket_create() and socket_newconn()
235 */
236 #define SOCKET_SLEEP KM_SLEEP
237 #define SOCKET_NOSLEEP KM_NOSLEEP
238
239 #endif /* _KERNEL */
240
241 /*
242 * Structure used for manipulating linger option.
243 */
244 struct linger {
245 int l_onoff; /* option on/off */
246 int l_linger; /* linger time */
247 };
248
249 /*
250 * Levels for (get/set)sockopt() that don't apply to a specific protocol.
251 */
252 #define SOL_SOCKET 0xffff /* options for socket level */
253 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
254 #define SOL_ROUTE 0xfffe /* options for routing socket level */
255 #endif
256 #define SOL_PACKET 0xfffd /* options for packet level */
257 #define SOL_FILTER 0xfffc /* options for socket filter level */
258
259 /*
260 * Address families.
261 *
262 * Some of these constant names are copied for the DTrace IP provider in
263 * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept
264 * in sync.
265 */
266 #define AF_UNSPEC 0 /* unspecified */
267 #define AF_UNIX 1 /* local to host (pipes, portals) */
268 #define AF_LOCAL AF_UNIX /* Synonym for AF_UNIX */
269 #define AF_FILE AF_UNIX /* Synonym for AF_UNIX */
270 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
271 #define AF_IMPLINK 3 /* arpanet imp addresses */
272 #define AF_PUP 4 /* pup protocols: e.g. BSP */
273 #define AF_CHAOS 5 /* mit CHAOS protocols */
274 #define AF_NS 6 /* XEROX NS protocols */
275 #define AF_NBS 7 /* nbs protocols */
276 #define AF_ECMA 8 /* european computer manufacturers */
277 #define AF_DATAKIT 9 /* datakit protocols */
278 #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
279 #define AF_SNA 11 /* IBM SNA */
280 #define AF_DECnet 12 /* DECnet */
281 #define AF_DLI 13 /* Direct data link interface */
282 #define AF_LAT 14 /* LAT */
283 #define AF_HYLINK 15 /* NSC Hyperchannel */
284 #define AF_APPLETALK 16 /* Apple Talk */
285 #define AF_NIT 17 /* Network Interface Tap */
286 #define AF_802 18 /* IEEE 802.2, also ISO 8802 */
287 #define AF_OSI 19 /* umbrella for all families used */
288 #define AF_X25 20 /* CCITT X.25 in particular */
289 #define AF_OSINET 21 /* AFI = 47, IDI = 4 */
290 #define AF_GOSIP 22 /* U.S. Government OSI */
291 #define AF_IPX 23 /* Novell Internet Protocol */
292 #define AF_ROUTE 24 /* Internal Routing Protocol */
293 #define AF_LINK 25 /* Link-layer interface */
294 #define AF_INET6 26 /* Internet Protocol, Version 6 */
295 #define AF_KEY 27 /* Security Association DB socket */
296 #define AF_NCA 28 /* NCA socket */
297 #define AF_POLICY 29 /* Security Policy DB socket */
298 #define AF_INET_OFFLOAD 30 /* Sun private; do not use */
299 #define AF_TRILL 31 /* TRILL interface */
300 #define AF_PACKET 32 /* PF_PACKET Linux socket interface */
301 #define AF_LX_NETLINK 33 /* Linux-compatible netlink */
302
303 #define AF_MAX 33
304
305 /*
306 * Protocol families, same as address families for now.
307 */
308 #define PF_UNSPEC AF_UNSPEC
309 #define PF_UNIX AF_UNIX
310 #define PF_LOCAL PF_UNIX
311 #define PF_FILE PF_UNIX
312 #define PF_INET AF_INET
313 #define PF_IMPLINK AF_IMPLINK
314 #define PF_PUP AF_PUP
315 #define PF_CHAOS AF_CHAOS
316 #define PF_NS AF_NS
317 #define PF_NBS AF_NBS
318 #define PF_ECMA AF_ECMA
319 #define PF_DATAKIT AF_DATAKIT
320 #define PF_CCITT AF_CCITT
321 #define PF_SNA AF_SNA
322 #define PF_DECnet AF_DECnet
323 #define PF_DLI AF_DLI
324 #define PF_LAT AF_LAT
325 #define PF_HYLINK AF_HYLINK
326 #define PF_APPLETALK AF_APPLETALK
327 #define PF_NIT AF_NIT
328 #define PF_802 AF_802
329 #define PF_OSI AF_OSI
330 #define PF_X25 AF_X25
331 #define PF_OSINET AF_OSINET
332 #define PF_GOSIP AF_GOSIP
333 #define PF_IPX AF_IPX
334 #define PF_ROUTE AF_ROUTE
335 #define PF_LINK AF_LINK
336 #define PF_INET6 AF_INET6
337 #define PF_KEY AF_KEY
338 #define PF_NCA AF_NCA
339 #define PF_POLICY AF_POLICY
340 #define PF_INET_OFFLOAD AF_INET_OFFLOAD /* Sun private; do not use */
341 #define PF_TRILL AF_TRILL
342 #define PF_PACKET AF_PACKET
343 #define PF_LX_NETLINK AF_LX_NETLINK
344
345 #define PF_MAX AF_MAX
346
347 /*
348 * Maximum queue length specifiable by listen.
349 */
350 #define SOMAXCONN 128
351
352 /*
353 * Message header for recvmsg and sendmsg calls.
354 */
355 struct msghdr {
356 void *msg_name; /* optional address */
357 socklen_t msg_namelen; /* size of address */
358 struct iovec *msg_iov; /* scatter/gather array */
359 int msg_iovlen; /* # elements in msg_iov */
360
361 #if defined(_XPG4_2) || defined(_KERNEL)
362 void *msg_control; /* ancillary data */
363 socklen_t msg_controllen; /* ancillary data buffer len */
364 int msg_flags; /* flags on received message */
365 #else
366 caddr_t msg_accrights; /* access rights sent/received */
367 int msg_accrightslen;
368 #endif /* defined(_XPG4_2) || defined(_KERNEL) */
369 };
370
371 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
372
373 /*
374 * N.B.: we assume that omsghdr and nmsghdr are isomorphic, with
375 * the sole exception that nmsghdr has the additional msg_flags
376 * field at the end.
377 */
378 struct omsghdr {
379 void *msg_name; /* optional address */
380 socklen_t msg_namelen; /* size of address */
381 struct iovec *msg_iov; /* scatter/gather array */
382 int msg_iovlen; /* # elements in msg_iov */
383 caddr_t msg_accrights; /* access rights sent/received */
384 int msg_accrightslen;
385 };
386
387 #define nmsghdr msghdr
388
389 #if defined(_SYSCALL32)
390
391 struct omsghdr32 {
392 caddr32_t msg_name; /* optional address */
393 uint32_t msg_namelen; /* size of address */
394 caddr32_t msg_iov; /* scatter/gather array */
395 int32_t msg_iovlen; /* # elements in msg_iov */
396 caddr32_t msg_accrights; /* access rights sent/received */
397 uint32_t msg_accrightslen;
398 };
399
400 struct msghdr32 {
401 caddr32_t msg_name; /* optional address */
402 uint32_t msg_namelen; /* size of address */
403 caddr32_t msg_iov; /* scatter/gather array */
404 int32_t msg_iovlen; /* # elements in msg_iov */
405 caddr32_t msg_control; /* ancillary data */
406 uint32_t msg_controllen; /* ancillary data buffer len */
407 int32_t msg_flags; /* flags on received message */
408 };
409
410 #define nmsghdr32 msghdr32
411
412 #endif /* _SYSCALL32 */
413 #endif /* _KERNEL */
414
415 #define MSG_OOB 0x1 /* process out-of-band data */
416 #define MSG_PEEK 0x2 /* peek at incoming message */
417 #define MSG_DONTROUTE 0x4 /* send without using routing tables */
418 /* Added for XPGv2 compliance */
419 #define MSG_EOR 0x8 /* Terminates a record */
420 #define MSG_CTRUNC 0x10 /* Control data truncated */
421 #define MSG_TRUNC 0x20 /* Normal data truncated */
422 #define MSG_WAITALL 0x40 /* Wait for complete recv or error */
423 #define MSG_DUPCTRL 0x800 /* Save control message for use with */
424 /* with left over data */
425 /* End of XPGv2 compliance */
426 #define MSG_DONTWAIT 0x80 /* Don't block for this recv */
427 #define MSG_NOTIFICATION 0x100 /* Notification, not data */
428 #define MSG_XPG4_2 0x8000 /* Private: XPG4.2 flag */
429
430 /* Obsolete but kept for compilation compatability. Use IOV_MAX. */
431 #define MSG_MAXIOVLEN 16
432
433 #ifdef _KERNEL
434
435 /*
436 * for kernel socket only
437 */
438 #define MSG_MBLK_QUICKRELE 0x10000000 /* free mblk chain */
439 /* in timely manner */
440 #define MSG_USERSPACE 0x20000000 /* buffer from user space */
441
442 #endif /* _KERNEL */
443
444
445 /* Added for XPGv2 compliance */
446 #define SHUT_RD 0
447 #define SHUT_WR 1
448 #define SHUT_RDWR 2
449
450 struct cmsghdr {
451 socklen_t cmsg_len; /* data byte count, including hdr */
452 int cmsg_level; /* originating protocol */
453 int cmsg_type; /* protocol-specific type */
454 };
455
456 #if defined(_XPG4_2) || defined(_KERNEL)
457 #if defined(__sparc)
458 /* To maintain backward compatibility, alignment needs to be 8 on sparc. */
459 #define _CMSG_HDR_ALIGNMENT 8
460 #else
461 /* for __i386 (and other future architectures) */
462 #define _CMSG_HDR_ALIGNMENT 4
463 #endif /* defined(__sparc) */
464 #endif /* defined(_XPG4_2) || defined(_KERNEL) */
465
466 #if defined(_XPG4_2)
467 /*
468 * The cmsg headers (and macros dealing with them) were made available as
469 * part of UNIX95 and hence need to be protected with a _XPG4_2 define.
470 */
471 #define _CMSG_DATA_ALIGNMENT (sizeof (int))
472 #define _CMSG_HDR_ALIGN(x) (((uintptr_t)(x) + _CMSG_HDR_ALIGNMENT - 1) & \
473 ~(_CMSG_HDR_ALIGNMENT - 1))
474 #define _CMSG_DATA_ALIGN(x) (((uintptr_t)(x) + _CMSG_DATA_ALIGNMENT - 1) & \
475 ~(_CMSG_DATA_ALIGNMENT - 1))
476 #define CMSG_DATA(c) \
477 ((unsigned char *)_CMSG_DATA_ALIGN((struct cmsghdr *)(c) + 1))
478
479 #define CMSG_FIRSTHDR(m) \
480 (((m)->msg_controllen < sizeof (struct cmsghdr)) ? \
481 (struct cmsghdr *)0 : (struct cmsghdr *)((m)->msg_control))
482
483 #define CMSG_NXTHDR(m, c) \
484 (((c) == 0) ? CMSG_FIRSTHDR(m) : \
485 ((((uintptr_t)_CMSG_HDR_ALIGN((char *)(c) + \
486 ((struct cmsghdr *)(c))->cmsg_len) + sizeof (struct cmsghdr)) > \
487 (((uintptr_t)((struct msghdr *)(m))->msg_control) + \
488 ((uintptr_t)((struct msghdr *)(m))->msg_controllen))) ? \
489 ((struct cmsghdr *)0) : \
490 ((struct cmsghdr *)_CMSG_HDR_ALIGN((char *)(c) + \
491 ((struct cmsghdr *)(c))->cmsg_len))))
492
493 /* Amount of space + padding needed for a message of length l */
494 #define CMSG_SPACE(l) \
495 ((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l)))
496
497 /* Value to be used in cmsg_len, does not include trailing padding */
498 #define CMSG_LEN(l) \
499 ((unsigned int)_CMSG_DATA_ALIGN(sizeof (struct cmsghdr)) + (l))
500
501 #endif /* _XPG4_2 */
502
503 #ifdef _XPG4_2
504 #ifdef __PRAGMA_REDEFINE_EXTNAME
505 #pragma redefine_extname bind __xnet_bind
506 #pragma redefine_extname connect __xnet_connect
507 #pragma redefine_extname recvmsg __xnet_recvmsg
508 #pragma redefine_extname sendmsg __xnet_sendmsg
509 #pragma redefine_extname sendto __xnet_sendto
510 #pragma redefine_extname socket __xnet_socket
511 #pragma redefine_extname socketpair __xnet_socketpair
512 #pragma redefine_extname getsockopt __xnet_getsockopt
513 #else /* __PRAGMA_REDEFINE_EXTNAME */
514 #define bind __xnet_bind
515 #define connect __xnet_connect
516 #define recvmsg __xnet_recvmsg
517 #define sendmsg __xnet_sendmsg
518 #define sendto __xnet_sendto
519 #define socket __xnet_socket
520 #define socketpair __xnet_socketpair
521 #define getsockopt __xnet_getsockopt
522 #endif /* __PRAGMA_REDEFINE_EXTNAME */
523
524 #endif /* _XPG4_2 */
525
526 #if defined(_XPG4_2) && !defined(_XPG5)
527 #ifdef __PRAGMA_REDEFINE_EXTNAME
528 #pragma redefine_extname listen __xnet_listen
529 #else /* __PRAGMA_REDEFINE_EXTNAME */
530 #define listen __xnet_listen
531 #endif /* __PRAGMA_REDEFINE_EXTNAME */
532 #endif /* (_XPG4_2) && !defined(_XPG5) */
533
534 #if !defined(_KERNEL) || defined(_BOOT)
535 extern int accept(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
536 extern int accept4(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t, int);
537 extern int bind(int, const struct sockaddr *, socklen_t);
538 extern int connect(int, const struct sockaddr *, socklen_t);
539 extern int getpeername(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
540 extern int getsockname(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
541 extern int getsockopt(int, int, int, void *_RESTRICT_KYWD, Psocklen_t);
542 extern int listen(int, int); /* XXX - fixme??? where do I go */
543 extern int socketpair(int, int, int, int *);
544 extern ssize_t recv(int, void *, size_t, int);
545 extern ssize_t recvfrom(int, void *_RESTRICT_KYWD, size_t, int,
546 struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
547 extern ssize_t recvmsg(int, struct msghdr *, int);
548 extern ssize_t send(int, const void *, size_t, int);
549 extern ssize_t sendmsg(int, const struct msghdr *, int);
550 extern ssize_t sendto(int, const void *, size_t, int, const struct sockaddr *,
551 socklen_t);
552 extern int setsockopt(int, int, int, const void *, socklen_t);
553 extern int shutdown(int, int);
554 extern int socket(int, int, int);
555
556 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
557 extern int sockatmark(int);
558 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
559 #endif /* !defined(_KERNEL) || defined(_BOOT) */
560
561 #ifdef __cplusplus
562 }
563 #endif
564
565 #endif /* _SYS_SOCKET_H */