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5880 Increase IOV_MAX to at least 1024
Portions contributed by: Jerry Jelinek <jerry.jelinek@joyent.com>
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--- old/usr/src/uts/common/sys/socket.h
+++ new/usr/src/uts/common/sys/socket.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
23 23 *
24 24 * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
25 + * Copyright 2015, Joyent, Inc. All rights reserved.
25 26 */
26 27
27 28 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
28 29 /* All Rights Reserved */
29 30
30 31 /*
31 32 * University Copyright- Copyright (c) 1982, 1986, 1988
32 33 * The Regents of the University of California
33 34 * All Rights Reserved
34 35 *
35 36 * University Acknowledgment- Portions of this document are derived from
36 37 * software developed by the University of California, Berkeley, and its
37 38 * contributors.
38 39 */
39 40
40 41 /* Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved. */
41 42
42 43 #ifndef _SYS_SOCKET_H
43 44 #define _SYS_SOCKET_H
44 45
45 46 #include <sys/types.h>
46 47 #include <sys/uio.h>
47 48 #include <sys/feature_tests.h>
48 49 #include <sys/socket_impl.h>
49 50 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
50 51 #ifndef _KERNEL
51 52 #include <sys/netconfig.h>
52 53 #endif /* !_KERNEL */
53 54 /*
54 55 * Historically, netinet/in.h included sys/stream.h, which pulled in
55 56 * several things. The more troublesome namespace pollution was from
56 57 * sys/stream.h so that was removed. To avoid having to fix lots of
57 58 * programs, pull in a few things that are now (for better or worse)
58 59 * expected by programs that include sys/socket.h
59 60 */
60 61 #include <sys/param.h>
61 62 #include <sys/cred.h>
62 63 #include <sys/poll.h>
63 64 #include <netinet/in.h>
64 65 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
65 66
66 67 #ifdef __cplusplus
67 68 extern "C" {
68 69 #endif
69 70
70 71 #ifndef _SOCKLEN_T
71 72 #define _SOCKLEN_T
72 73
73 74 /*
74 75 * The socklen definitions are reproduced in netinet/in.h for the inet6_
75 76 * functions. Exposing all of sys/socket.h via netinet/in.h breaks existing
76 77 * applications and is not required by austin.
77 78 */
78 79 #if defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64)
79 80 typedef size_t socklen_t;
80 81 #else
81 82 typedef uint32_t socklen_t;
82 83 #endif /* defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64) */
83 84
84 85 #if defined(_XPG4_2) || defined(_BOOT)
85 86 typedef socklen_t *_RESTRICT_KYWD Psocklen_t;
86 87 #else
87 88 typedef void *_RESTRICT_KYWD Psocklen_t;
88 89 #endif /* defined(_XPG4_2) || defined(_BOOT) */
89 90
90 91 #endif /* _SOCKLEN_T */
91 92
92 93 /*
93 94 * Definitions related to sockets: types, address families, options.
94 95 */
95 96 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
96 97 #ifndef NC_TPI_CLTS
97 98 #define NC_TPI_CLTS 1 /* must agree with netconfig.h */
98 99 #define NC_TPI_COTS 2 /* must agree with netconfig.h */
99 100 #define NC_TPI_COTS_ORD 3 /* must agree with netconfig.h */
100 101 #define NC_TPI_RAW 4 /* must agree with netconfig.h */
101 102 #endif /* !NC_TPI_CLTS */
102 103 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
103 104
104 105 /*
105 106 * Types
106 107 */
107 108 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
108 109 #define SOCK_STREAM NC_TPI_COTS /* stream socket */
109 110 #define SOCK_DGRAM NC_TPI_CLTS /* datagram socket */
110 111 #define SOCK_RAW NC_TPI_RAW /* raw-protocol interface */
111 112 #else
112 113 #define SOCK_STREAM 2 /* stream socket */
113 114 #define SOCK_DGRAM 1 /* datagram socket */
114 115 #define SOCK_RAW 4 /* raw-protocol interface */
115 116 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
116 117 #define SOCK_RDM 5 /* reliably-delivered message */
117 118 #define SOCK_SEQPACKET 6 /* sequenced packet stream */
118 119 #define SOCK_TYPE_MASK 0xffff /* type reside in these bits only */
119 120
120 121 /*
121 122 * Flags for socket() and accept4()
122 123 */
123 124 #define SOCK_CLOEXEC 0x080000 /* like open(2) O_CLOEXEC for socket */
124 125 #define SOCK_NONBLOCK 0x100000 /* like O_NONBLOCK */
125 126 #define SOCK_NDELAY 0x200000 /* like O_NDELAY */
126 127
127 128 /*
128 129 * Option flags per-socket.
129 130 */
130 131 #define SO_DEBUG 0x0001 /* turn on debugging info recording */
131 132 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
132 133 #define SO_REUSEADDR 0x0004 /* allow local address reuse */
133 134 #define SO_KEEPALIVE 0x0008 /* keep connections alive */
134 135 #define SO_DONTROUTE 0x0010 /* just use interface addresses */
135 136 #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
136 137 #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
137 138 #define SO_LINGER 0x0080 /* linger on close if data present */
138 139 #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
139 140 #define SO_DGRAM_ERRIND 0x0200 /* Application wants delayed error */
140 141 #define SO_RECVUCRED 0x0400 /* Application wants ucred of sender */
141 142
142 143 /*
143 144 * Socket options are passed using a signed integer, but it is also rare
144 145 * for more than one to ever be passed at the same time with setsockopt
145 146 * and only one at a time can be retrieved with getsockopt.
146 147 *
147 148 * Since the lower numbers cannot be renumbered for compatibility reasons,
148 149 * it would seem that we need to start a new number space (0x40000000 -
149 150 * 0x7fffffff) for those that don't need to be stored as a bit flag
150 151 * somewhere. This limits the flag options to 30 but that seems to be
151 152 * plenty, anyway. 0x40000000 is reserved for future use.
152 153 */
153 154 #define SO_ATTACH_FILTER 0x40000001
154 155 #define SO_DETACH_FILTER 0x40000002
155 156
156 157 #ifdef _KERNEL
157 158 #define SO_SND_COPYAVOID 0x0800 /* Internal: use zero-copy */
158 159 #define SO_SND_BUFINFO 0x1000 /* Internal: get buffer info */
159 160 /* when doing zero-copy */
160 161
161 162 struct so_snd_bufinfo {
162 163 ushort_t sbi_wroff; /* Write offset */
163 164 ssize_t sbi_maxblk; /* Max size of a single mblk */
164 165 ssize_t sbi_maxpsz; /* Max total size of a mblk chain */
165 166 ushort_t sbi_tail; /* Extra space available at the end */
166 167 };
167 168 #endif /* _KERNEL */
168 169
169 170 /*
170 171 * N.B.: The following definition is present only for compatibility
171 172 * with release 3.0. It will disappear in later releases.
172 173 */
173 174 #define SO_DONTLINGER (~SO_LINGER) /* ~SO_LINGER */
174 175
175 176 /*
176 177 * Additional options, not kept in so_options.
177 178 */
178 179 #define SO_SNDBUF 0x1001 /* send buffer size */
179 180 #define SO_RCVBUF 0x1002 /* receive buffer size */
180 181 #define SO_SNDLOWAT 0x1003 /* send low-water mark */
181 182 #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
182 183 #define SO_SNDTIMEO 0x1005 /* send timeout */
183 184 #define SO_RCVTIMEO 0x1006 /* receive timeout */
184 185 #define SO_ERROR 0x1007 /* get error status and clear */
185 186 #define SO_TYPE 0x1008 /* get socket type */
186 187 #define SO_PROTOTYPE 0x1009 /* get/set protocol type */
187 188 #define SO_ANON_MLP 0x100a /* create MLP on anonymous bind */
188 189 #define SO_MAC_EXEMPT 0x100b /* allow dominated unlabeled peers */
189 190 #define SO_DOMAIN 0x100c /* get socket domain */
190 191 #define SO_RCVPSH 0x100d /* receive interval to push data */
191 192
192 193 /* "Socket"-level control message types: */
193 194 #define SCM_RIGHTS 0x1010 /* access rights (array of int) */
194 195 #define SO_SECATTR 0x1011 /* socket's security attributes */
195 196 #define SCM_UCRED 0x1012 /* sender's ucred */
196 197 #define SO_TIMESTAMP 0x1013 /* socket-level timestamp option */
197 198 #define SCM_TIMESTAMP SO_TIMESTAMP /* socket control message timestamp */
198 199 #define SO_ALLZONES 0x1014 /* bind in all zones */
199 200 #define SO_EXCLBIND 0x1015 /* exclusive binding */
200 201 #define SO_MAC_IMPLICIT 0x1016 /* hide mac labels on wire */
201 202 #define SO_VRRP 0x1017 /* VRRP control socket */
202 203
203 204 #ifdef _KERNEL
204 205 #define SO_SRCADDR 0x2001 /* Internal: AF_UNIX source address */
205 206 #define SO_FILEP 0x2002 /* Internal: AF_UNIX file pointer */
206 207 #define SO_UNIX_CLOSE 0x2003 /* Internal: AF_UNIX peer closed */
207 208 #endif /* _KERNEL */
208 209
209 210 /*
210 211 * Socket filter options
211 212 */
212 213 #define FIL_ATTACH 0x1 /* attach filter */
213 214 #define FIL_DETACH 0x2 /* detach filter */
214 215 #define FIL_LIST 0x3 /* list attached filters */
215 216
216 217 #define FILNAME_MAX 32
217 218 /*
218 219 * Structure returned by FIL_LIST
219 220 */
220 221 struct fil_info {
221 222 int fi_flags; /* see below (FILF_*) */
222 223 int fi_pos; /* position (0 is bottom) */
223 224 char fi_name[FILNAME_MAX]; /* filter name */
224 225 };
225 226
226 227 #define FILF_PROG 0x1 /* programmatic attach */
227 228 #define FILF_AUTO 0x2 /* automatic attach */
228 229 #define FILF_BYPASS 0x4 /* filter is not active */
229 230
230 231 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
231 232 /*
232 233 * new socket open flags to identify socket and acceptor streams
233 234 */
234 235 #define SO_ACCEPTOR 0x20000 /* acceptor socket */
235 236 #define SO_SOCKSTR 0x40000 /* normal socket stream */
236 237 #define SO_FALLBACK 0x80000 /* fallback to TPI socket */
237 238
238 239 /*
239 240 * Flags for socket_create() and socket_newconn()
240 241 */
241 242 #define SOCKET_SLEEP KM_SLEEP
242 243 #define SOCKET_NOSLEEP KM_NOSLEEP
243 244
244 245 #endif /* _KERNEL */
245 246
246 247 /*
247 248 * Structure used for manipulating linger option.
248 249 */
249 250 struct linger {
250 251 int l_onoff; /* option on/off */
251 252 int l_linger; /* linger time */
252 253 };
253 254
254 255 /*
255 256 * Levels for (get/set)sockopt() that don't apply to a specific protocol.
256 257 */
257 258 #define SOL_SOCKET 0xffff /* options for socket level */
258 259 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
259 260 #define SOL_ROUTE 0xfffe /* options for routing socket level */
260 261 #endif
261 262 #define SOL_PACKET 0xfffd /* options for packet level */
262 263 #define SOL_FILTER 0xfffc /* options for socket filter level */
263 264
264 265 /*
265 266 * Address families.
266 267 *
267 268 * Some of these constant names are copied for the DTrace IP provider in
268 269 * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept
269 270 * in sync.
270 271 */
271 272 #define AF_UNSPEC 0 /* unspecified */
272 273 #define AF_UNIX 1 /* local to host (pipes, portals) */
273 274 #define AF_LOCAL AF_UNIX /* Synonym for AF_UNIX */
274 275 #define AF_FILE AF_UNIX /* Synonym for AF_UNIX */
275 276 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
276 277 #define AF_IMPLINK 3 /* arpanet imp addresses */
277 278 #define AF_PUP 4 /* pup protocols: e.g. BSP */
278 279 #define AF_CHAOS 5 /* mit CHAOS protocols */
279 280 #define AF_NS 6 /* XEROX NS protocols */
280 281 #define AF_NBS 7 /* nbs protocols */
281 282 #define AF_ECMA 8 /* european computer manufacturers */
282 283 #define AF_DATAKIT 9 /* datakit protocols */
283 284 #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
284 285 #define AF_SNA 11 /* IBM SNA */
285 286 #define AF_DECnet 12 /* DECnet */
286 287 #define AF_DLI 13 /* Direct data link interface */
287 288 #define AF_LAT 14 /* LAT */
288 289 #define AF_HYLINK 15 /* NSC Hyperchannel */
289 290 #define AF_APPLETALK 16 /* Apple Talk */
290 291 #define AF_NIT 17 /* Network Interface Tap */
291 292 #define AF_802 18 /* IEEE 802.2, also ISO 8802 */
292 293 #define AF_OSI 19 /* umbrella for all families used */
293 294 #define AF_X25 20 /* CCITT X.25 in particular */
294 295 #define AF_OSINET 21 /* AFI = 47, IDI = 4 */
295 296 #define AF_GOSIP 22 /* U.S. Government OSI */
296 297 #define AF_IPX 23 /* Novell Internet Protocol */
297 298 #define AF_ROUTE 24 /* Internal Routing Protocol */
298 299 #define AF_LINK 25 /* Link-layer interface */
299 300 #define AF_INET6 26 /* Internet Protocol, Version 6 */
300 301 #define AF_KEY 27 /* Security Association DB socket */
301 302 #define AF_NCA 28 /* NCA socket */
302 303 #define AF_POLICY 29 /* Security Policy DB socket */
303 304 #define AF_INET_OFFLOAD 30 /* Sun private; do not use */
304 305 #define AF_TRILL 31 /* TRILL interface */
305 306 #define AF_PACKET 32 /* PF_PACKET Linux socket interface */
306 307
307 308 #define AF_MAX 32
308 309
309 310 /*
310 311 * Protocol families, same as address families for now.
311 312 */
312 313 #define PF_UNSPEC AF_UNSPEC
313 314 #define PF_UNIX AF_UNIX
314 315 #define PF_LOCAL PF_UNIX
315 316 #define PF_FILE PF_UNIX
316 317 #define PF_INET AF_INET
317 318 #define PF_IMPLINK AF_IMPLINK
318 319 #define PF_PUP AF_PUP
319 320 #define PF_CHAOS AF_CHAOS
320 321 #define PF_NS AF_NS
321 322 #define PF_NBS AF_NBS
322 323 #define PF_ECMA AF_ECMA
323 324 #define PF_DATAKIT AF_DATAKIT
324 325 #define PF_CCITT AF_CCITT
325 326 #define PF_SNA AF_SNA
326 327 #define PF_DECnet AF_DECnet
327 328 #define PF_DLI AF_DLI
328 329 #define PF_LAT AF_LAT
329 330 #define PF_HYLINK AF_HYLINK
330 331 #define PF_APPLETALK AF_APPLETALK
331 332 #define PF_NIT AF_NIT
332 333 #define PF_802 AF_802
333 334 #define PF_OSI AF_OSI
334 335 #define PF_X25 AF_X25
335 336 #define PF_OSINET AF_OSINET
336 337 #define PF_GOSIP AF_GOSIP
337 338 #define PF_IPX AF_IPX
338 339 #define PF_ROUTE AF_ROUTE
339 340 #define PF_LINK AF_LINK
340 341 #define PF_INET6 AF_INET6
341 342 #define PF_KEY AF_KEY
342 343 #define PF_NCA AF_NCA
343 344 #define PF_POLICY AF_POLICY
344 345 #define PF_INET_OFFLOAD AF_INET_OFFLOAD /* Sun private; do not use */
345 346 #define PF_TRILL AF_TRILL
346 347 #define PF_PACKET AF_PACKET
347 348
348 349 #define PF_MAX AF_MAX
349 350
350 351 /*
351 352 * Maximum queue length specifiable by listen.
352 353 */
353 354 #define SOMAXCONN 128
354 355
355 356 /*
356 357 * Message header for recvmsg and sendmsg calls.
357 358 */
358 359 struct msghdr {
359 360 void *msg_name; /* optional address */
360 361 socklen_t msg_namelen; /* size of address */
361 362 struct iovec *msg_iov; /* scatter/gather array */
362 363 int msg_iovlen; /* # elements in msg_iov */
363 364
364 365 #if defined(_XPG4_2) || defined(_KERNEL)
365 366 void *msg_control; /* ancillary data */
366 367 socklen_t msg_controllen; /* ancillary data buffer len */
367 368 int msg_flags; /* flags on received message */
368 369 #else
369 370 caddr_t msg_accrights; /* access rights sent/received */
370 371 int msg_accrightslen;
371 372 #endif /* defined(_XPG4_2) || defined(_KERNEL) */
372 373 };
373 374
374 375 #if defined(_KERNEL) || defined(_FAKE_KERNEL)
375 376
376 377 /*
377 378 * N.B.: we assume that omsghdr and nmsghdr are isomorphic, with
378 379 * the sole exception that nmsghdr has the additional msg_flags
379 380 * field at the end.
380 381 */
381 382 struct omsghdr {
382 383 void *msg_name; /* optional address */
383 384 socklen_t msg_namelen; /* size of address */
384 385 struct iovec *msg_iov; /* scatter/gather array */
385 386 int msg_iovlen; /* # elements in msg_iov */
386 387 caddr_t msg_accrights; /* access rights sent/received */
387 388 int msg_accrightslen;
388 389 };
389 390
390 391 #define nmsghdr msghdr
391 392
392 393 #if defined(_SYSCALL32)
393 394
394 395 struct omsghdr32 {
395 396 caddr32_t msg_name; /* optional address */
396 397 uint32_t msg_namelen; /* size of address */
397 398 caddr32_t msg_iov; /* scatter/gather array */
398 399 int32_t msg_iovlen; /* # elements in msg_iov */
399 400 caddr32_t msg_accrights; /* access rights sent/received */
400 401 uint32_t msg_accrightslen;
401 402 };
402 403
403 404 struct msghdr32 {
404 405 caddr32_t msg_name; /* optional address */
405 406 uint32_t msg_namelen; /* size of address */
406 407 caddr32_t msg_iov; /* scatter/gather array */
407 408 int32_t msg_iovlen; /* # elements in msg_iov */
408 409 caddr32_t msg_control; /* ancillary data */
409 410 uint32_t msg_controllen; /* ancillary data buffer len */
410 411 int32_t msg_flags; /* flags on received message */
411 412 };
412 413
413 414 #define nmsghdr32 msghdr32
414 415
415 416 #endif /* _SYSCALL32 */
416 417 #endif /* _KERNEL */
417 418
418 419 #define MSG_OOB 0x1 /* process out-of-band data */
419 420 #define MSG_PEEK 0x2 /* peek at incoming message */
420 421 #define MSG_DONTROUTE 0x4 /* send without using routing tables */
421 422 #define MSG_EOR 0x8 /* Terminates a record */
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422 423 #define MSG_CTRUNC 0x10 /* Control data truncated */
423 424 #define MSG_TRUNC 0x20 /* Normal data truncated */
424 425 #define MSG_WAITALL 0x40 /* Wait for complete recv or error */
425 426 #define MSG_DONTWAIT 0x80 /* Don't block for this recv */
426 427 #define MSG_NOTIFICATION 0x100 /* Notification, not data */
427 428 #define MSG_NOSIGNAL 0x200 /* Don't generate SIGPIPE */
428 429 #define MSG_DUPCTRL 0x800 /* Save control message for use with */
429 430 /* with left over data */
430 431 #define MSG_XPG4_2 0x8000 /* Private: XPG4.2 flag */
431 432
433 +/* Obsolete but kept for compilation compatability. Use IOV_MAX. */
432 434 #define MSG_MAXIOVLEN 16
433 435
434 436 #ifdef _KERNEL
435 437
436 438 /*
437 439 * Internal-only MSG_... flags
438 440 */
439 441
440 442 #define MSG_SENDTO_NOXLATE 0x08000000 /* Skip so_ux_addr_xlate */
441 443
442 444 #define MSG_MBLK_QUICKRELE 0x10000000 /* free mblk chain */
443 445 /* in timely manner */
444 446 #define MSG_USERSPACE 0x20000000 /* buffer from user space */
445 447
446 448 #endif /* _KERNEL */
447 449
448 450
449 451 /* Added for XPGv2 compliance */
450 452 #define SHUT_RD 0
451 453 #define SHUT_WR 1
452 454 #define SHUT_RDWR 2
453 455
454 456 struct cmsghdr {
455 457 socklen_t cmsg_len; /* data byte count, including hdr */
456 458 int cmsg_level; /* originating protocol */
457 459 int cmsg_type; /* protocol-specific type */
458 460 };
459 461
460 462 #if defined(_XPG4_2) || defined(_KERNEL)
461 463 #if defined(__sparc)
462 464 /* To maintain backward compatibility, alignment needs to be 8 on sparc. */
463 465 #define _CMSG_HDR_ALIGNMENT 8
464 466 #else
465 467 /* for __i386 (and other future architectures) */
466 468 #define _CMSG_HDR_ALIGNMENT 4
467 469 #endif /* defined(__sparc) */
468 470 #endif /* defined(_XPG4_2) || defined(_KERNEL) */
469 471
470 472 #if defined(_XPG4_2)
471 473 /*
472 474 * The cmsg headers (and macros dealing with them) were made available as
473 475 * part of UNIX95 and hence need to be protected with a _XPG4_2 define.
474 476 */
475 477 #define _CMSG_DATA_ALIGNMENT (sizeof (int))
476 478 #define _CMSG_HDR_ALIGN(x) (((uintptr_t)(x) + _CMSG_HDR_ALIGNMENT - 1) & \
477 479 ~(_CMSG_HDR_ALIGNMENT - 1))
478 480 #define _CMSG_DATA_ALIGN(x) (((uintptr_t)(x) + _CMSG_DATA_ALIGNMENT - 1) & \
479 481 ~(_CMSG_DATA_ALIGNMENT - 1))
480 482 #define CMSG_DATA(c) \
481 483 ((unsigned char *)_CMSG_DATA_ALIGN((struct cmsghdr *)(c) + 1))
482 484
483 485 #define CMSG_FIRSTHDR(m) \
484 486 (((m)->msg_controllen < sizeof (struct cmsghdr)) ? \
485 487 (struct cmsghdr *)0 : (struct cmsghdr *)((m)->msg_control))
486 488
487 489 #define CMSG_NXTHDR(m, c) \
488 490 (((c) == 0) ? CMSG_FIRSTHDR(m) : \
489 491 ((((uintptr_t)_CMSG_HDR_ALIGN((char *)(c) + \
490 492 ((struct cmsghdr *)(c))->cmsg_len) + sizeof (struct cmsghdr)) > \
491 493 (((uintptr_t)((struct msghdr *)(m))->msg_control) + \
492 494 ((uintptr_t)((struct msghdr *)(m))->msg_controllen))) ? \
493 495 ((struct cmsghdr *)0) : \
494 496 ((struct cmsghdr *)_CMSG_HDR_ALIGN((char *)(c) + \
495 497 ((struct cmsghdr *)(c))->cmsg_len))))
496 498
497 499 /* Amount of space + padding needed for a message of length l */
498 500 #define CMSG_SPACE(l) \
499 501 ((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l)))
500 502
501 503 /* Value to be used in cmsg_len, does not include trailing padding */
502 504 #define CMSG_LEN(l) \
503 505 ((unsigned int)_CMSG_DATA_ALIGN(sizeof (struct cmsghdr)) + (l))
504 506
505 507 #endif /* _XPG4_2 */
506 508
507 509 #ifdef _XPG4_2
508 510 #ifdef __PRAGMA_REDEFINE_EXTNAME
509 511 #pragma redefine_extname bind __xnet_bind
510 512 #pragma redefine_extname connect __xnet_connect
511 513 #pragma redefine_extname recvmsg __xnet_recvmsg
512 514 #pragma redefine_extname sendmsg __xnet_sendmsg
513 515 #pragma redefine_extname sendto __xnet_sendto
514 516 #pragma redefine_extname socket __xnet_socket
515 517 #pragma redefine_extname socketpair __xnet_socketpair
516 518 #pragma redefine_extname getsockopt __xnet_getsockopt
517 519 #else /* __PRAGMA_REDEFINE_EXTNAME */
518 520 #define bind __xnet_bind
519 521 #define connect __xnet_connect
520 522 #define recvmsg __xnet_recvmsg
521 523 #define sendmsg __xnet_sendmsg
522 524 #define sendto __xnet_sendto
523 525 #define socket __xnet_socket
524 526 #define socketpair __xnet_socketpair
525 527 #define getsockopt __xnet_getsockopt
526 528 #endif /* __PRAGMA_REDEFINE_EXTNAME */
527 529
528 530 #endif /* _XPG4_2 */
529 531
530 532 #if defined(_XPG4_2) && !defined(_XPG5)
531 533 #ifdef __PRAGMA_REDEFINE_EXTNAME
532 534 #pragma redefine_extname listen __xnet_listen
533 535 #else /* __PRAGMA_REDEFINE_EXTNAME */
534 536 #define listen __xnet_listen
535 537 #endif /* __PRAGMA_REDEFINE_EXTNAME */
536 538 #endif /* (_XPG4_2) && !defined(_XPG5) */
537 539
538 540 #if !defined(_KERNEL) || defined(_BOOT)
539 541 extern int accept(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
540 542 extern int accept4(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t, int);
541 543 extern int bind(int, const struct sockaddr *, socklen_t);
542 544 extern int connect(int, const struct sockaddr *, socklen_t);
543 545 extern int getpeername(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
544 546 extern int getsockname(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
545 547 extern int getsockopt(int, int, int, void *_RESTRICT_KYWD, Psocklen_t);
546 548 extern int listen(int, int); /* XXX - fixme??? where do I go */
547 549 extern int socketpair(int, int, int, int *);
548 550 extern ssize_t recv(int, void *, size_t, int);
549 551 extern ssize_t recvfrom(int, void *_RESTRICT_KYWD, size_t, int,
550 552 struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
551 553 extern ssize_t recvmsg(int, struct msghdr *, int);
552 554 extern ssize_t send(int, const void *, size_t, int);
553 555 extern ssize_t sendmsg(int, const struct msghdr *, int);
554 556 extern ssize_t sendto(int, const void *, size_t, int, const struct sockaddr *,
555 557 socklen_t);
556 558 extern int setsockopt(int, int, int, const void *, socklen_t);
557 559 extern int shutdown(int, int);
558 560 extern int socket(int, int, int);
559 561
560 562 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
561 563 extern int sockatmark(int);
562 564 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
563 565 #endif /* !defined(_KERNEL) || defined(_BOOT) */
564 566
565 567 #ifdef __cplusplus
566 568 }
567 569 #endif
568 570
569 571 #endif /* _SYS_SOCKET_H */
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