xref: /titanic_52/usr/src/uts/common/sys/socket.h (revision f64ca10231919db05e806441ccd6186ea9c6e734)
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  */
26 
27 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved	*/
29 
30 /*
31  * University Copyright- Copyright (c) 1982, 1986, 1988
32  * The Regents of the University of California
33  * All Rights Reserved
34  *
35  * University Acknowledgment- Portions of this document are derived from
36  * software developed by the University of California, Berkeley, and its
37  * contributors.
38  */
39 
40 /* Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved. */
41 
42 #ifndef	_SYS_SOCKET_H
43 #define	_SYS_SOCKET_H
44 
45 #include <sys/types.h>
46 #include <sys/uio.h>
47 #include <sys/feature_tests.h>
48 #include <sys/socket_impl.h>
49 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
50 #ifndef	_KERNEL
51 #include <sys/netconfig.h>
52 #endif	/* !_KERNEL */
53 #include <netinet/in.h>
54 #endif	/* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
55 
56 #ifdef	__cplusplus
57 extern "C" {
58 #endif
59 
60 #ifndef	_SOCKLEN_T
61 #define	_SOCKLEN_T
62 
63 /*
64  * The socklen definitions are reproduced in netinet/in.h for the inet6_
65  * functions.  Exposing all of sys/socket.h via netinet/in.h breaks existing
66  * applications and is not required by austin.
67  */
68 #if defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64)
69 typedef	size_t		socklen_t;
70 #else
71 typedef	uint32_t	socklen_t;
72 #endif	/* defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64) */
73 
74 #if defined(_XPG4_2) || defined(_BOOT)
75 typedef	socklen_t	*_RESTRICT_KYWD Psocklen_t;
76 #else
77 typedef	void		*_RESTRICT_KYWD Psocklen_t;
78 #endif	/* defined(_XPG4_2) || defined(_BOOT) */
79 
80 #endif	/* _SOCKLEN_T */
81 
82 /*
83  * Definitions related to sockets: types, address families, options.
84  */
85 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
86 #ifndef	NC_TPI_CLTS
87 #define	NC_TPI_CLTS	1		/* must agree with netconfig.h */
88 #define	NC_TPI_COTS	2		/* must agree with netconfig.h */
89 #define	NC_TPI_COTS_ORD	3		/* must agree with netconfig.h */
90 #define	NC_TPI_RAW	4		/* must agree with netconfig.h */
91 #endif	/* !NC_TPI_CLTS */
92 #endif	/* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
93 
94 /*
95  * Types
96  */
97 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
98 #define	SOCK_STREAM	NC_TPI_COTS	/* stream socket */
99 #define	SOCK_DGRAM	NC_TPI_CLTS	/* datagram socket */
100 #define	SOCK_RAW	NC_TPI_RAW	/* raw-protocol interface */
101 #else
102 #define	SOCK_STREAM	2		/* stream socket */
103 #define	SOCK_DGRAM	1		/* datagram socket */
104 #define	SOCK_RAW	4		/* raw-protocol interface */
105 #endif	/* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
106 #define	SOCK_RDM	5		/* reliably-delivered message */
107 #define	SOCK_SEQPACKET	6		/* sequenced packet stream */
108 #define	SOCK_TYPE_MASK	0xffff		/* type reside in these bits only */
109 
110 /*
111  * Flags for socket() and accept4()
112  */
113 #define	SOCK_CLOEXEC	0x080000	/* like open(2) O_CLOEXEC for socket */
114 #define	SOCK_NONBLOCK	0x100000	/* like O_NONBLOCK */
115 #define	SOCK_NDELAY	0x200000	/* like O_NDELAY */
116 
117 /*
118  * Option flags per-socket.
119  */
120 #define	SO_DEBUG	0x0001		/* turn on debugging info recording */
121 #define	SO_ACCEPTCONN	0x0002		/* socket has had listen() */
122 #define	SO_REUSEADDR	0x0004		/* allow local address reuse */
123 #define	SO_KEEPALIVE	0x0008		/* keep connections alive */
124 #define	SO_DONTROUTE	0x0010		/* just use interface addresses */
125 #define	SO_BROADCAST	0x0020		/* permit sending of broadcast msgs */
126 #define	SO_USELOOPBACK	0x0040		/* bypass hardware when possible */
127 #define	SO_LINGER	0x0080		/* linger on close if data present */
128 #define	SO_OOBINLINE	0x0100		/* leave received OOB data in line */
129 #define	SO_DGRAM_ERRIND	0x0200		/* Application wants delayed error */
130 #define	SO_RECVUCRED	0x0400		/* Application wants ucred of sender */
131 
132 /*
133  * Socket options are passed using a signed integer, but it is also rare
134  * for more than one to ever be passed at the same time with setsockopt
135  * and only one at a time can be retrieved with getsockopt.
136  *
137  * Since the lower numbers cannot be renumbered for compatibility reasons,
138  * it would seem that we need to start a new number space (0x40000000 -
139  * 0x7fffffff) for those that don't need to be stored as a bit flag
140  * somewhere. This limits the flag options to 30 but that seems to be
141  * plenty, anyway. 0x40000000 is reserved for future use.
142  */
143 #define	SO_ATTACH_FILTER	0x40000001
144 #define	SO_DETACH_FILTER	0x40000002
145 
146 #ifdef _KERNEL
147 #define	SO_SND_COPYAVOID 0x0800		/* Internal: use zero-copy */
148 #define	SO_SND_BUFINFO	0x1000		/* Internal: get buffer info */
149 					/* when doing zero-copy */
150 
151 struct so_snd_bufinfo {
152 	ushort_t	sbi_wroff; 	/* Write offset */
153 	ssize_t		sbi_maxblk;	/* Max size of a single mblk */
154 	ssize_t		sbi_maxpsz;	/* Max total size of a mblk chain */
155 	ushort_t	sbi_tail;	/* Extra space available at the end */
156 };
157 #endif /* _KERNEL */
158 
159 /*
160  * N.B.: The following definition is present only for compatibility
161  * with release 3.0.  It will disappear in later releases.
162  */
163 #define	SO_DONTLINGER	(~SO_LINGER)	/* ~SO_LINGER */
164 
165 /*
166  * Additional options, not kept in so_options.
167  */
168 #define	SO_SNDBUF	0x1001		/* send buffer size */
169 #define	SO_RCVBUF	0x1002		/* receive buffer size */
170 #define	SO_SNDLOWAT	0x1003		/* send low-water mark */
171 #define	SO_RCVLOWAT	0x1004		/* receive low-water mark */
172 #define	SO_SNDTIMEO	0x1005		/* send timeout */
173 #define	SO_RCVTIMEO	0x1006		/* receive timeout */
174 #define	SO_ERROR	0x1007		/* get error status and clear */
175 #define	SO_TYPE		0x1008		/* get socket type */
176 #define	SO_PROTOTYPE	0x1009		/* get/set protocol type */
177 #define	SO_ANON_MLP	0x100a		/* create MLP on anonymous bind */
178 #define	SO_MAC_EXEMPT	0x100b		/* allow dominated unlabeled peers */
179 #define	SO_DOMAIN	0x100c		/* get socket domain */
180 #define	SO_RCVPSH	0x100d		/* receive interval to push data */
181 #define	SO_REUSEPORT	0x100e		/* allow balanced sharing of ports */
182 
183 /* "Socket"-level control message types: */
184 #define	SCM_RIGHTS	0x1010		/* access rights (array of int) */
185 #define	SO_SECATTR	0x1011		/* socket's security attributes */
186 #define	SCM_UCRED	0x1012		/* sender's ucred */
187 #define	SO_TIMESTAMP	0x1013		/* socket-level timestamp option */
188 #define	SCM_TIMESTAMP	SO_TIMESTAMP	/* socket control message timestamp */
189 #define	SO_ALLZONES	0x1014		/* bind in all zones */
190 #define	SO_EXCLBIND	0x1015		/* exclusive binding */
191 #define	SO_MAC_IMPLICIT	0x1016		/* hide mac labels on wire */
192 #define	SO_VRRP		0x1017		/* VRRP control socket */
193 
194 #ifdef	_KERNEL
195 #define	SO_SRCADDR	0x2001		/* Internal: AF_UNIX source address */
196 #define	SO_FILEP	0x2002		/* Internal: AF_UNIX file pointer */
197 #define	SO_UNIX_CLOSE	0x2003		/* Internal: AF_UNIX peer closed */
198 #endif	/* _KERNEL */
199 
200 /*
201  * Socket filter options
202  */
203 #define	FIL_ATTACH	0x1		/* attach filter */
204 #define	FIL_DETACH	0x2		/* detach filter */
205 #define	FIL_LIST	0x3		/* list attached filters */
206 
207 #define	FILNAME_MAX	32
208 /*
209  * Structure returned by FIL_LIST
210  */
211 struct fil_info {
212 	int	fi_flags;		/* see below (FILF_*) */
213 	int	fi_pos;			/* position (0 is bottom) */
214 	char	fi_name[FILNAME_MAX];	/* filter name */
215 };
216 
217 #define	FILF_PROG	0x1		/* programmatic attach */
218 #define	FILF_AUTO	0x2		/* automatic attach */
219 #define	FILF_BYPASS	0x4		/* filter is not active */
220 
221 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
222 /*
223  * new socket open flags to identify socket and acceptor streams
224  */
225 #define	SO_ACCEPTOR	0x20000		/* acceptor socket */
226 #define	SO_SOCKSTR	0x40000		/* normal socket stream */
227 #define	SO_FALLBACK	0x80000		/* fallback to TPI socket */
228 
229 /*
230  * Flags for socket_create() and socket_newconn()
231  */
232 #define	SOCKET_SLEEP	KM_SLEEP
233 #define	SOCKET_NOSLEEP	KM_NOSLEEP
234 
235 #endif	/* _KERNEL */
236 
237 /*
238  * Structure used for manipulating linger option.
239  */
240 struct	linger {
241 	int	l_onoff;		/* option on/off */
242 	int	l_linger;		/* linger time */
243 };
244 
245 /*
246  * Levels for (get/set)sockopt() that don't apply to a specific protocol.
247  */
248 #define	SOL_SOCKET	0xffff		/* options for socket level */
249 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
250 #define	SOL_ROUTE	0xfffe		/* options for routing socket level */
251 #endif
252 #define	SOL_PACKET	0xfffd		/* options for packet level */
253 #define	SOL_FILTER	0xfffc		/* options for socket filter level */
254 
255 /*
256  * Address families.
257  *
258  * Some of these constant names are copied for the DTrace IP provider in
259  * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept
260  * in sync.
261  */
262 #define	AF_UNSPEC	0		/* unspecified */
263 #define	AF_UNIX		1		/* local to host (pipes, portals) */
264 #define	AF_LOCAL	AF_UNIX		/* Synonym for AF_UNIX */
265 #define	AF_FILE		AF_UNIX		/* Synonym for AF_UNIX */
266 #define	AF_INET		2		/* internetwork: UDP, TCP, etc. */
267 #define	AF_IMPLINK	3		/* arpanet imp addresses */
268 #define	AF_PUP		4		/* pup protocols: e.g. BSP */
269 #define	AF_CHAOS	5		/* mit CHAOS protocols */
270 #define	AF_NS		6		/* XEROX NS protocols */
271 #define	AF_NBS		7		/* nbs protocols */
272 #define	AF_ECMA		8		/* european computer manufacturers */
273 #define	AF_DATAKIT	9		/* datakit protocols */
274 #define	AF_CCITT	10		/* CCITT protocols, X.25 etc */
275 #define	AF_SNA		11		/* IBM SNA */
276 #define	AF_DECnet	12		/* DECnet */
277 #define	AF_DLI		13		/* Direct data link interface */
278 #define	AF_LAT		14		/* LAT */
279 #define	AF_HYLINK	15		/* NSC Hyperchannel */
280 #define	AF_APPLETALK	16		/* Apple Talk */
281 #define	AF_NIT		17		/* Network Interface Tap */
282 #define	AF_802		18		/* IEEE 802.2, also ISO 8802 */
283 #define	AF_OSI		19		/* umbrella for all families used */
284 #define	AF_X25		20		/* CCITT X.25 in particular */
285 #define	AF_OSINET	21		/* AFI = 47, IDI = 4 */
286 #define	AF_GOSIP	22		/* U.S. Government OSI */
287 #define	AF_IPX		23		/* Novell Internet Protocol */
288 #define	AF_ROUTE	24		/* Internal Routing Protocol */
289 #define	AF_LINK		25		/* Link-layer interface */
290 #define	AF_INET6	26		/* Internet Protocol, Version 6 */
291 #define	AF_KEY		27		/* Security Association DB socket */
292 #define	AF_NCA		28		/* NCA socket */
293 #define	AF_POLICY	29		/* Security Policy DB socket */
294 #define	AF_INET_OFFLOAD	30		/* Sun private; do not use */
295 #define	AF_TRILL	31		/* TRILL interface */
296 #define	AF_PACKET	32		/* PF_PACKET Linux socket interface */
297 
298 #define	AF_MAX		32
299 
300 /*
301  * Protocol families, same as address families for now.
302  */
303 #define	PF_UNSPEC	AF_UNSPEC
304 #define	PF_UNIX		AF_UNIX
305 #define	PF_LOCAL	PF_UNIX
306 #define	PF_FILE		PF_UNIX
307 #define	PF_INET		AF_INET
308 #define	PF_IMPLINK	AF_IMPLINK
309 #define	PF_PUP		AF_PUP
310 #define	PF_CHAOS	AF_CHAOS
311 #define	PF_NS		AF_NS
312 #define	PF_NBS		AF_NBS
313 #define	PF_ECMA		AF_ECMA
314 #define	PF_DATAKIT	AF_DATAKIT
315 #define	PF_CCITT	AF_CCITT
316 #define	PF_SNA		AF_SNA
317 #define	PF_DECnet	AF_DECnet
318 #define	PF_DLI		AF_DLI
319 #define	PF_LAT		AF_LAT
320 #define	PF_HYLINK	AF_HYLINK
321 #define	PF_APPLETALK	AF_APPLETALK
322 #define	PF_NIT		AF_NIT
323 #define	PF_802		AF_802
324 #define	PF_OSI		AF_OSI
325 #define	PF_X25		AF_X25
326 #define	PF_OSINET	AF_OSINET
327 #define	PF_GOSIP	AF_GOSIP
328 #define	PF_IPX		AF_IPX
329 #define	PF_ROUTE	AF_ROUTE
330 #define	PF_LINK		AF_LINK
331 #define	PF_INET6	AF_INET6
332 #define	PF_KEY		AF_KEY
333 #define	PF_NCA		AF_NCA
334 #define	PF_POLICY	AF_POLICY
335 #define	PF_INET_OFFLOAD	AF_INET_OFFLOAD	/* Sun private; do not use */
336 #define	PF_TRILL	AF_TRILL
337 #define	PF_PACKET	AF_PACKET
338 
339 #define	PF_MAX		AF_MAX
340 
341 /*
342  * Maximum queue length specifiable by listen.
343  */
344 #define	SOMAXCONN	128
345 
346 /*
347  * Message header for recvmsg and sendmsg calls.
348  */
349 struct msghdr {
350 	void		*msg_name;		/* optional address */
351 	socklen_t	msg_namelen;		/* size of address */
352 	struct iovec	*msg_iov;		/* scatter/gather array */
353 	int		msg_iovlen;		/* # elements in msg_iov */
354 
355 #if defined(_XPG4_2) || defined(_KERNEL)
356 	void		*msg_control;		/* ancillary data */
357 	socklen_t	msg_controllen;		/* ancillary data buffer len */
358 	int		msg_flags;		/* flags on received message */
359 #else
360 	caddr_t		msg_accrights;	/* access rights sent/received */
361 	int		msg_accrightslen;
362 #endif	/* defined(_XPG4_2) || defined(_KERNEL) */
363 };
364 
365 #if	defined(_KERNEL) || defined(_FAKE_KERNEL)
366 
367 /*
368  *	N.B.:  we assume that omsghdr and nmsghdr are isomorphic, with
369  *	the sole exception that nmsghdr has the additional msg_flags
370  *	field at the end.
371  */
372 struct omsghdr {
373 	void		*msg_name;	/* optional address */
374 	socklen_t	msg_namelen;	/* size of address */
375 	struct	iovec	*msg_iov;	/* scatter/gather array */
376 	int		msg_iovlen;	/* # elements in msg_iov */
377 	caddr_t		msg_accrights;	/* access rights sent/received */
378 	int		msg_accrightslen;
379 };
380 
381 #define	nmsghdr		msghdr
382 
383 #if defined(_SYSCALL32)
384 
385 struct omsghdr32 {
386 	caddr32_t	msg_name;	/* optional address */
387 	uint32_t	msg_namelen;	/* size of address */
388 	caddr32_t	msg_iov;	/* scatter/gather array */
389 	int32_t		msg_iovlen;	/* # elements in msg_iov */
390 	caddr32_t	msg_accrights;	/* access rights sent/received */
391 	uint32_t	msg_accrightslen;
392 };
393 
394 struct msghdr32 {
395 	caddr32_t	msg_name;	/* optional address */
396 	uint32_t	msg_namelen;	/* size of address */
397 	caddr32_t	msg_iov;	/* scatter/gather array */
398 	int32_t		msg_iovlen;	/* # elements in msg_iov */
399 	caddr32_t	msg_control;	/* ancillary data */
400 	uint32_t	msg_controllen;	/* ancillary data buffer len */
401 	int32_t		msg_flags;	/* flags on received message */
402 };
403 
404 #define	nmsghdr32	msghdr32
405 
406 #endif	/* _SYSCALL32 */
407 #endif	/* _KERNEL */
408 
409 #define	MSG_OOB		0x1		/* process out-of-band data */
410 #define	MSG_PEEK	0x2		/* peek at incoming message */
411 #define	MSG_DONTROUTE	0x4		/* send without using routing tables */
412 /* Added for XPGv2 compliance */
413 #define	MSG_EOR		0x8		/* Terminates a record */
414 #define	MSG_CTRUNC	0x10		/* Control data truncated */
415 #define	MSG_TRUNC	0x20		/* Normal data truncated */
416 #define	MSG_WAITALL	0x40		/* Wait for complete recv or error */
417 #define	MSG_DUPCTRL	0x800		/* Save control message for use with */
418 					/* with left over data */
419 /* End of XPGv2 compliance */
420 #define	MSG_DONTWAIT	0x80		/* Don't block for this recv */
421 #define	MSG_NOTIFICATION 0x100		/* Notification, not data */
422 #define	MSG_XPG4_2	0x8000		/* Private: XPG4.2 flag */
423 
424 #define	MSG_MAXIOVLEN	16
425 
426 #ifdef _KERNEL
427 
428 /*
429  * for kernel socket only
430  */
431 #define	MSG_MBLK_QUICKRELE	0x10000000	/* free mblk chain */
432 						/* in timely manner */
433 #define	MSG_USERSPACE		0x20000000	/* buffer from user space */
434 
435 #endif /* _KERNEL */
436 
437 
438 /* Added for XPGv2 compliance */
439 #define	SHUT_RD		0
440 #define	SHUT_WR		1
441 #define	SHUT_RDWR	2
442 
443 struct cmsghdr {
444 	socklen_t	cmsg_len;	/* data byte count, including hdr */
445 	int		cmsg_level;	/* originating protocol */
446 	int		cmsg_type;	/* protocol-specific type */
447 };
448 
449 #if defined(_XPG4_2) || defined(_KERNEL)
450 #if defined(__sparc)
451 /* To maintain backward compatibility, alignment needs to be 8 on sparc. */
452 #define	_CMSG_HDR_ALIGNMENT	8
453 #else
454 /* for __i386 (and other future architectures) */
455 #define	_CMSG_HDR_ALIGNMENT	4
456 #endif	/* defined(__sparc) */
457 #endif	/* defined(_XPG4_2) || defined(_KERNEL) */
458 
459 #if defined(_XPG4_2)
460 /*
461  * The cmsg headers (and macros dealing with them) were made available as
462  * part of UNIX95 and hence need to be protected with a _XPG4_2 define.
463  */
464 #define	_CMSG_DATA_ALIGNMENT	(sizeof (int))
465 #define	_CMSG_HDR_ALIGN(x)	(((uintptr_t)(x) + _CMSG_HDR_ALIGNMENT - 1) & \
466 				    ~(_CMSG_HDR_ALIGNMENT - 1))
467 #define	_CMSG_DATA_ALIGN(x)	(((uintptr_t)(x) + _CMSG_DATA_ALIGNMENT - 1) & \
468 				    ~(_CMSG_DATA_ALIGNMENT - 1))
469 #define	CMSG_DATA(c)							\
470 	((unsigned char *)_CMSG_DATA_ALIGN((struct cmsghdr *)(c) + 1))
471 
472 #define	CMSG_FIRSTHDR(m)						\
473 	(((m)->msg_controllen < sizeof (struct cmsghdr)) ?		\
474 	    (struct cmsghdr *)0 : (struct cmsghdr *)((m)->msg_control))
475 
476 #define	CMSG_NXTHDR(m, c)						\
477 	(((c) == 0) ? CMSG_FIRSTHDR(m) :			\
478 	((((uintptr_t)_CMSG_HDR_ALIGN((char *)(c) +			\
479 	((struct cmsghdr *)(c))->cmsg_len) + sizeof (struct cmsghdr)) >	\
480 	(((uintptr_t)((struct msghdr *)(m))->msg_control) +		\
481 	((uintptr_t)((struct msghdr *)(m))->msg_controllen))) ?		\
482 	((struct cmsghdr *)0) :						\
483 	((struct cmsghdr *)_CMSG_HDR_ALIGN((char *)(c) +		\
484 	    ((struct cmsghdr *)(c))->cmsg_len))))
485 
486 /* Amount of space + padding needed for a message of length l */
487 #define	CMSG_SPACE(l)							\
488 	((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l)))
489 
490 /* Value to be used in cmsg_len, does not include trailing padding */
491 #define	CMSG_LEN(l)							\
492 	((unsigned int)_CMSG_DATA_ALIGN(sizeof (struct cmsghdr)) + (l))
493 
494 #endif	/* _XPG4_2 */
495 
496 #ifdef	_XPG4_2
497 #ifdef	__PRAGMA_REDEFINE_EXTNAME
498 #pragma redefine_extname bind __xnet_bind
499 #pragma redefine_extname connect __xnet_connect
500 #pragma redefine_extname recvmsg __xnet_recvmsg
501 #pragma redefine_extname sendmsg __xnet_sendmsg
502 #pragma redefine_extname sendto __xnet_sendto
503 #pragma redefine_extname socket __xnet_socket
504 #pragma redefine_extname socketpair __xnet_socketpair
505 #pragma redefine_extname getsockopt __xnet_getsockopt
506 #else	/* __PRAGMA_REDEFINE_EXTNAME */
507 #define	bind	__xnet_bind
508 #define	connect	__xnet_connect
509 #define	recvmsg	__xnet_recvmsg
510 #define	sendmsg	__xnet_sendmsg
511 #define	sendto	__xnet_sendto
512 #define	socket	__xnet_socket
513 #define	socketpair	__xnet_socketpair
514 #define	getsockopt	__xnet_getsockopt
515 #endif	/* __PRAGMA_REDEFINE_EXTNAME */
516 
517 #endif	/* _XPG4_2 */
518 
519 #if defined(_XPG4_2) && !defined(_XPG5)
520 #ifdef	__PRAGMA_REDEFINE_EXTNAME
521 #pragma redefine_extname listen __xnet_listen
522 #else	/* __PRAGMA_REDEFINE_EXTNAME */
523 #define	listen	__xnet_listen
524 #endif	/* __PRAGMA_REDEFINE_EXTNAME */
525 #endif /* (_XPG4_2) && !defined(_XPG5) */
526 
527 #if !defined(_KERNEL) || defined(_BOOT)
528 extern int accept(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
529 extern int accept4(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t, int);
530 extern int bind(int, const struct sockaddr *, socklen_t);
531 extern int connect(int, const struct sockaddr *, socklen_t);
532 extern int getpeername(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
533 extern int getsockname(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
534 extern int getsockopt(int, int, int, void *_RESTRICT_KYWD, Psocklen_t);
535 extern int listen(int, int);	/* XXX - fixme???  where do I go */
536 extern int socketpair(int, int, int, int *);
537 extern ssize_t recv(int, void *, size_t, int);
538 extern ssize_t recvfrom(int, void *_RESTRICT_KYWD, size_t, int,
539 	struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
540 extern ssize_t recvmsg(int, struct msghdr *, int);
541 extern ssize_t send(int, const void *, size_t, int);
542 extern ssize_t sendmsg(int, const struct msghdr *, int);
543 extern ssize_t sendto(int, const void *, size_t, int, const struct sockaddr *,
544 	socklen_t);
545 extern int setsockopt(int, int, int, const void *, socklen_t);
546 extern int shutdown(int, int);
547 extern int socket(int, int, int);
548 
549 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
550 extern int sockatmark(int);
551 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
552 #endif	/* !defined(_KERNEL) || defined(_BOOT) */
553 
554 #ifdef	__cplusplus
555 }
556 #endif
557 
558 #endif	/* _SYS_SOCKET_H */
559