Annotation of src/sys/sys/socket.h, Revision 1.65
1.65 ! kleink 1: /* $NetBSD: socket.h,v 1.64 2001/10/22 17:53:44 kleink Exp $ */
1.44 itojun 2:
3: /*
4: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. Neither the name of the project nor the names of its contributors
16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
1.10 cgd 31:
1.1 cgd 32: /*
1.8 mycroft 33: * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
34: * The Regents of the University of California. All rights reserved.
1.1 cgd 35: *
36: * Redistribution and use in source and binary forms, with or without
37: * modification, are permitted provided that the following conditions
38: * are met:
39: * 1. Redistributions of source code must retain the above copyright
40: * notice, this list of conditions and the following disclaimer.
41: * 2. Redistributions in binary form must reproduce the above copyright
42: * notice, this list of conditions and the following disclaimer in the
43: * documentation and/or other materials provided with the distribution.
44: * 3. All advertising materials mentioning features or use of this software
45: * must display the following acknowledgement:
46: * This product includes software developed by the University of
47: * California, Berkeley and its contributors.
48: * 4. Neither the name of the University nor the names of its contributors
49: * may be used to endorse or promote products derived from this software
50: * without specific prior written permission.
51: *
52: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62: * SUCH DAMAGE.
63: *
1.28 fvdl 64: * @(#)socket.h 8.6 (Berkeley) 5/3/95
1.1 cgd 65: */
66:
1.2 mycroft 67: #ifndef _SYS_SOCKET_H_
1.8 mycroft 68: #define _SYS_SOCKET_H_
1.2 mycroft 69:
1.1 cgd 70: /*
71: * Definitions related to sockets: types, address families, options.
72: */
73:
74: /*
1.42 kleink 75: * Data types.
76: */
1.55 itojun 77: #include <sys/ansi.h>
1.56 kleink 78:
79: #ifndef sa_family_t
80: typedef __sa_family_t sa_family_t;
1.58 kleink 81: #define sa_family_t __sa_family_t
1.56 kleink 82: #endif
83:
1.55 itojun 84: #ifndef socklen_t
85: typedef __socklen_t socklen_t;
1.58 kleink 86: #define socklen_t __socklen_t
1.55 itojun 87: #endif
1.42 kleink 88:
1.63 kleink 89: #include <machine/ansi.h>
90:
91: #ifdef _BSD_SIZE_T_
92: typedef _BSD_SIZE_T_ size_t;
93: #undef _BSD_SIZE_T_
94: #endif
95:
96: #ifdef _BSD_SSIZE_T_
97: typedef _BSD_SSIZE_T_ ssize_t;
98: #undef _BSD_SSIZE_T_
99: #endif
100:
101: #include <sys/uio.h>
102:
1.42 kleink 103: /*
104: * Socket types.
1.1 cgd 105: */
106: #define SOCK_STREAM 1 /* stream socket */
107: #define SOCK_DGRAM 2 /* datagram socket */
108: #define SOCK_RAW 3 /* raw-protocol interface */
109: #define SOCK_RDM 4 /* reliably-delivered message */
110: #define SOCK_SEQPACKET 5 /* sequenced packet stream */
111:
112: /*
113: * Option flags per-socket.
114: */
115: #define SO_DEBUG 0x0001 /* turn on debugging info recording */
116: #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
117: #define SO_REUSEADDR 0x0004 /* allow local address reuse */
118: #define SO_KEEPALIVE 0x0008 /* keep connections alive */
119: #define SO_DONTROUTE 0x0010 /* just use interface addresses */
120: #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
121: #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
122: #define SO_LINGER 0x0080 /* linger on close if data present */
123: #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
1.8 mycroft 124: #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
1.18 thorpej 125: #define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */
1.1 cgd 126:
127: /*
128: * Additional options, not kept in so_options.
129: */
130: #define SO_SNDBUF 0x1001 /* send buffer size */
131: #define SO_RCVBUF 0x1002 /* receive buffer size */
132: #define SO_SNDLOWAT 0x1003 /* send low-water mark */
133: #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
134: #define SO_SNDTIMEO 0x1005 /* send timeout */
135: #define SO_RCVTIMEO 0x1006 /* receive timeout */
136: #define SO_ERROR 0x1007 /* get error status and clear */
137: #define SO_TYPE 0x1008 /* get socket type */
138:
139: /*
140: * Structure used for manipulating linger option.
141: */
142: struct linger {
143: int l_onoff; /* option on/off */
1.28 fvdl 144: int l_linger; /* linger time in seconds */
1.1 cgd 145: };
146:
147: /*
148: * Level number for (get/set)sockopt() to apply to socket itself.
149: */
150: #define SOL_SOCKET 0xffff /* options for socket level */
151:
152: /*
153: * Address families.
154: */
155: #define AF_UNSPEC 0 /* unspecified */
1.8 mycroft 156: #define AF_LOCAL 1 /* local to host (pipes, portals) */
157: #define AF_UNIX AF_LOCAL /* backward compatibility */
1.1 cgd 158: #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
159: #define AF_IMPLINK 3 /* arpanet imp addresses */
160: #define AF_PUP 4 /* pup protocols: e.g. BSP */
161: #define AF_CHAOS 5 /* mit CHAOS protocols */
162: #define AF_NS 6 /* XEROX NS protocols */
163: #define AF_ISO 7 /* ISO protocols */
164: #define AF_OSI AF_ISO
165: #define AF_ECMA 8 /* european computer manufacturers */
166: #define AF_DATAKIT 9 /* datakit protocols */
167: #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
168: #define AF_SNA 11 /* IBM SNA */
169: #define AF_DECnet 12 /* DECnet */
170: #define AF_DLI 13 /* DEC Direct data link interface */
171: #define AF_LAT 14 /* LAT */
172: #define AF_HYLINK 15 /* NSC Hyperchannel */
173: #define AF_APPLETALK 16 /* Apple Talk */
174: #define AF_ROUTE 17 /* Internal Routing Protocol */
175: #define AF_LINK 18 /* Link layer interface */
1.42 kleink 176: #if !defined(_XOPEN_SOURCE)
1.1 cgd 177: #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
1.42 kleink 178: #endif
1.8 mycroft 179: #define AF_COIP 20 /* connection-oriented IP, aka ST II */
180: #define AF_CNT 21 /* Computer Network Technology */
1.42 kleink 181: #if !defined(_XOPEN_SOURCE)
1.8 mycroft 182: #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */
1.42 kleink 183: #endif
1.8 mycroft 184: #define AF_IPX 23 /* Novell Internet Protocol */
1.21 sommerfe 185: #define AF_INET6 24 /* IP version 6 */
1.42 kleink 186: #if !defined(_XOPEN_SOURCE)
1.8 mycroft 187: #define pseudo_AF_PIP 25 /* Help Identify PIP packets */
1.42 kleink 188: #endif
1.17 chuck 189: #define AF_ISDN 26 /* Integrated Services Digital Network*/
190: #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */
191: #define AF_NATM 27 /* native ATM access */
1.19 is 192: #define AF_ARP 28 /* (rev.) addr. res. prot. (RFC 826) */
1.42 kleink 193: #if !defined(_XOPEN_SOURCE)
1.21 sommerfe 194: #define pseudo_AF_KEY 29 /* Internal key management protocol */
1.31 thorpej 195: #define pseudo_AF_HDRCMPLT 30 /* Used by BPF to not rewrite hdrs
196: in interface output routine */
1.42 kleink 197: #endif
1.1 cgd 198:
1.31 thorpej 199: #define AF_MAX 31
1.1 cgd 200:
201: /*
1.26 thorpej 202: * Structure used by kernel to store most
203: * addresses.
1.1 cgd 204: */
205: struct sockaddr {
1.63 kleink 206: __uint8_t sa_len; /* total length */
1.56 kleink 207: sa_family_t sa_family; /* address family */
208: char sa_data[14]; /* actually longer; address value */
1.26 thorpej 209: };
1.1 cgd 210:
1.42 kleink 211: #if defined(_KERNEL)
1.1 cgd 212: /*
213: * Structure used by kernel to pass protocol
214: * information in raw sockets.
215: */
216: struct sockproto {
217: u_short sp_family; /* address family */
218: u_short sp_protocol; /* protocol */
219: };
1.42 kleink 220: #endif /* _KERNEL */
1.1 cgd 221:
1.44 itojun 222: #if 1
223: /*
224: * RFC 2553: protocol-independent placeholder for socket addresses
225: */
226: #define _SS_MAXSIZE 128
1.63 kleink 227: #define _SS_ALIGNSIZE (sizeof(__int64_t))
1.60 kleink 228: #define _SS_PAD1SIZE (_SS_ALIGNSIZE - 2)
229: #define _SS_PAD2SIZE (_SS_MAXSIZE - 2 - \
1.44 itojun 230: _SS_PAD1SIZE - _SS_ALIGNSIZE)
231:
1.46 kleink 232: #if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 500
1.44 itojun 233: struct sockaddr_storage {
1.63 kleink 234: __uint8_t ss_len; /* address length */
1.56 kleink 235: sa_family_t ss_family; /* address family */
236: char __ss_pad1[_SS_PAD1SIZE];
1.63 kleink 237: __int64_t __ss_align;/* force desired structure storage alignment */
1.56 kleink 238: char __ss_pad2[_SS_PAD2SIZE];
1.44 itojun 239: };
1.46 kleink 240: #endif /* !_XOPEN_SOURCE || ... */
241: #endif /* 1 */
1.44 itojun 242:
1.1 cgd 243: /*
244: * Protocol families, same as address families for now.
245: */
246: #define PF_UNSPEC AF_UNSPEC
1.8 mycroft 247: #define PF_LOCAL AF_LOCAL
248: #define PF_UNIX PF_LOCAL /* backward compatibility */
1.1 cgd 249: #define PF_INET AF_INET
250: #define PF_IMPLINK AF_IMPLINK
251: #define PF_PUP AF_PUP
252: #define PF_CHAOS AF_CHAOS
253: #define PF_NS AF_NS
254: #define PF_ISO AF_ISO
255: #define PF_OSI AF_ISO
256: #define PF_ECMA AF_ECMA
257: #define PF_DATAKIT AF_DATAKIT
258: #define PF_CCITT AF_CCITT
259: #define PF_SNA AF_SNA
260: #define PF_DECnet AF_DECnet
261: #define PF_DLI AF_DLI
262: #define PF_LAT AF_LAT
263: #define PF_HYLINK AF_HYLINK
264: #define PF_APPLETALK AF_APPLETALK
265: #define PF_ROUTE AF_ROUTE
266: #define PF_LINK AF_LINK
1.42 kleink 267: #if !defined(_XOPEN_SOURCE)
1.1 cgd 268: #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
1.42 kleink 269: #endif
1.8 mycroft 270: #define PF_COIP AF_COIP
271: #define PF_CNT AF_CNT
1.21 sommerfe 272: #define PF_INET6 AF_INET6
1.8 mycroft 273: #define PF_IPX AF_IPX /* same format as AF_NS */
1.42 kleink 274: #if !defined(_XOPEN_SOURCE)
1.8 mycroft 275: #define PF_RTIP pseudo_AF_FTIP /* same format as AF_INET */
276: #define PF_PIP pseudo_AF_PIP
1.42 kleink 277: #endif
1.20 is 278: #define PF_ISDN AF_ISDN /* same as E164 */
279: #define PF_E164 AF_E164
1.17 chuck 280: #define PF_NATM AF_NATM
1.19 is 281: #define PF_ARP AF_ARP
1.42 kleink 282: #if !defined(_XOPEN_SOURCE)
1.21 sommerfe 283: #define PF_KEY pseudo_AF_KEY /* like PF_ROUTE, only for key mgmt */
1.42 kleink 284: #endif
1.1 cgd 285:
286: #define PF_MAX AF_MAX
287:
1.42 kleink 288: #if !defined(_XOPEN_SOURCE)
1.63 kleink 289:
290: #ifndef gid_t
291: typedef __gid_t gid_t; /* group id */
292: #define gid_t __gid_t
293: #endif
294:
295: #ifndef uid_t
296: typedef __uid_t uid_t; /* user id */
297: #define uid_t __uid_t
298: #endif
299:
1.1 cgd 300: /*
1.27 thorpej 301: * Socket credentials.
302: */
303: struct sockcred {
304: uid_t sc_uid; /* real user id */
305: uid_t sc_euid; /* effective user id */
306: gid_t sc_gid; /* real group id */
307: gid_t sc_egid; /* effective group id */
308: int sc_ngroups; /* number of supplemental groups */
309: gid_t sc_groups[1]; /* variable length */
310: };
311:
312: /*
313: * Compute size of a sockcred structure with groups.
314: */
315: #define SOCKCREDSIZE(ngrps) \
316: (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
1.42 kleink 317: #endif /* !_XOPEN_SOURCE */
1.27 thorpej 318:
1.38 kleink 319:
320: #if !defined(_XOPEN_SOURCE)
1.27 thorpej 321: /*
1.8 mycroft 322: * Definitions for network related sysctl, CTL_NET.
323: *
324: * Second level is protocol family.
325: * Third level is protocol number.
326: *
327: * Further levels are defined by the individual families below.
328: */
329: #define NET_MAXID AF_MAX
330:
331: #define CTL_NET_NAMES { \
332: { 0, 0 }, \
1.28 fvdl 333: { "local", CTLTYPE_NODE }, \
1.8 mycroft 334: { "inet", CTLTYPE_NODE }, \
335: { "implink", CTLTYPE_NODE }, \
336: { "pup", CTLTYPE_NODE }, \
337: { "chaos", CTLTYPE_NODE }, \
338: { "xerox_ns", CTLTYPE_NODE }, \
339: { "iso", CTLTYPE_NODE }, \
340: { "emca", CTLTYPE_NODE }, \
341: { "datakit", CTLTYPE_NODE }, \
342: { "ccitt", CTLTYPE_NODE }, \
343: { "ibm_sna", CTLTYPE_NODE }, \
344: { "decnet", CTLTYPE_NODE }, \
345: { "dec_dli", CTLTYPE_NODE }, \
346: { "lat", CTLTYPE_NODE }, \
347: { "hylink", CTLTYPE_NODE }, \
348: { "appletalk", CTLTYPE_NODE }, \
349: { "route", CTLTYPE_NODE }, \
350: { "link_layer", CTLTYPE_NODE }, \
351: { "xtp", CTLTYPE_NODE }, \
352: { "coip", CTLTYPE_NODE }, \
353: { "cnt", CTLTYPE_NODE }, \
354: { "rtip", CTLTYPE_NODE }, \
355: { "ipx", CTLTYPE_NODE }, \
1.21 sommerfe 356: { "inet6", CTLTYPE_NODE }, \
1.8 mycroft 357: { "pip", CTLTYPE_NODE }, \
1.20 is 358: { "isdn", CTLTYPE_NODE }, \
1.17 chuck 359: { "natm", CTLTYPE_NODE }, \
1.20 is 360: { "arp", CTLTYPE_NODE }, \
1.21 sommerfe 361: { "key", CTLTYPE_NODE }, \
1.8 mycroft 362: }
1.38 kleink 363: #endif /* !_XOPEN_SOURCE */
1.8 mycroft 364:
1.38 kleink 365: #if !defined(_XOPEN_SOURCE)
1.8 mycroft 366: /*
367: * PF_ROUTE - Routing table
368: *
369: * Three additional levels are defined:
370: * Fourth: address family, 0 is wildcard
371: * Fifth: type of info, defined below
372: * Sixth: flag(s) to mask with for NET_RT_FLAGS
373: */
374: #define NET_RT_DUMP 1 /* dump; may limit to a.f. */
375: #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
1.47 bouyer 376: #define NET_RT_OIFLIST 3 /* old NET_RT_IFLIST (pre 1.5) */
377: #define NET_RT_IFLIST 4 /* survey interface list */
378: #define NET_RT_MAXID 5
1.8 mycroft 379:
380: #define CTL_NET_RT_NAMES { \
381: { 0, 0 }, \
382: { "dump", CTLTYPE_STRUCT }, \
383: { "flags", CTLTYPE_STRUCT }, \
1.47 bouyer 384: { 0, 0 }, \
1.8 mycroft 385: { "iflist", CTLTYPE_STRUCT }, \
386: }
1.38 kleink 387: #endif /* !_XOPEN_SOURCE */
1.8 mycroft 388:
389: /*
1.13 mycroft 390: * Maximum queue length specifiable by listen(2).
1.1 cgd 391: */
1.16 neil 392:
1.13 mycroft 393: #define SOMAXCONN 128
1.16 neil 394:
1.1 cgd 395: /*
396: * Message header for recvmsg and sendmsg calls.
397: * Used value-result for recvmsg, value only for sendmsg.
398: */
399: struct msghdr {
1.42 kleink 400: void *msg_name; /* optional address */
401: socklen_t msg_namelen; /* size of address */
402: struct iovec *msg_iov; /* scatter/gather array */
403: int msg_iovlen; /* # elements in msg_iov */
404: void *msg_control; /* ancillary data, see below */
405: socklen_t msg_controllen; /* ancillary data buffer len */
406: int msg_flags; /* flags on received message */
1.1 cgd 407: };
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: #define MSG_EOR 0x8 /* data completes record */
413: #define MSG_TRUNC 0x10 /* data discarded before delivery */
414: #define MSG_CTRUNC 0x20 /* control data lost before delivery */
415: #define MSG_WAITALL 0x40 /* wait for full request or error */
1.8 mycroft 416: #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
1.30 matt 417: #define MSG_BCAST 0x100 /* this message was rcvd using link-level brdcst */
418: #define MSG_MCAST 0x200 /* this message was rcvd using link-level mcast */
1.1 cgd 419:
420: /*
421: * Header for ancillary data objects in msg_control buffer.
422: * Used for additional information with/about a datagram
423: * not expressible by flags. The format is a sequence
424: * of message elements headed by cmsghdr structures.
425: */
426: struct cmsghdr {
1.42 kleink 427: socklen_t cmsg_len; /* data byte count, including hdr */
428: int cmsg_level; /* originating protocol */
429: int cmsg_type; /* protocol-specific type */
1.1 cgd 430: /* followed by u_char cmsg_data[]; */
431: };
432:
1.8 mycroft 433: /* given pointer to struct cmsghdr, return pointer to data */
1.50 itojun 434: #define CMSG_DATA(cmsg) \
1.57 christos 435: ((u_char *)(void *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
1.1 cgd 436:
1.44 itojun 437: /*
438: * Alignment requirement for CMSG struct manipulation.
1.51 itojun 439: * This basically behaves the same as ALIGN() ARCH/include/param.h.
440: * We declare it separately for two reasons:
441: * (1) avoid dependency between machine/param.h, and (2) to sync with kernel's
442: * idea of ALIGNBYTES at runtime.
443: * without (2), we can't guarantee binary compatibility in case of future
444: * changes in ALIGNBYTES.
1.44 itojun 445: */
1.53 itojun 446: #define __CMSG_ALIGN(n) (((n) + __cmsg_alignbytes()) & ~__cmsg_alignbytes())
447: #ifdef _KERNEL
1.54 augustss 448: #define CMSG_ALIGN(n) __CMSG_ALIGN(n)
1.53 itojun 449: #endif
1.44 itojun 450:
1.8 mycroft 451: /* given pointer to struct cmsghdr, return pointer to next cmsghdr */
1.1 cgd 452: #define CMSG_NXTHDR(mhdr, cmsg) \
1.63 kleink 453: (((__caddr_t)(cmsg) + __CMSG_ALIGN((cmsg)->cmsg_len) + \
1.53 itojun 454: __CMSG_ALIGN(sizeof(struct cmsghdr)) > \
1.63 kleink 455: (((__caddr_t)(mhdr)->msg_control) + (mhdr)->msg_controllen)) ? \
1.1 cgd 456: (struct cmsghdr *)NULL : \
1.63 kleink 457: (struct cmsghdr *)((__caddr_t)(cmsg) + \
458: __CMSG_ALIGN((cmsg)->cmsg_len)))
1.1 cgd 459:
1.62 itojun 460: /*
461: * RFC 2292 requires to check msg_controllen, in case that the kernel returns
462: * an empty list for some reasons.
463: */
464: #define CMSG_FIRSTHDR(mhdr) \
465: ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
466: (struct cmsghdr *)(mhdr)->msg_control : \
467: (struct cmsghdr *)NULL)
1.1 cgd 468:
1.53 itojun 469: #define CMSG_SPACE(l) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(l))
470: #define CMSG_LEN(l) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + (l))
1.44 itojun 471:
1.1 cgd 472: /* "Socket"-level control message types: */
473: #define SCM_RIGHTS 0x01 /* access rights (array of int) */
1.42 kleink 474: #if !defined(_XOPEN_SOURCE)
1.18 thorpej 475: #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */
1.42 kleink 476: #define SCM_CREDS 0x04 /* credentials (struct sockcred) */
477: #endif
1.29 kleink 478:
479: /*
480: * Types of socket shutdown(2).
481: */
482: #define SHUT_RD 0 /* Disallow further receives. */
483: #define SHUT_WR 1 /* Disallow further sends. */
484: #define SHUT_RDWR 2 /* Disallow further sends/receives. */
1.1 cgd 485:
1.42 kleink 486: #if !defined(_XOPEN_SOURCE)
1.1 cgd 487: /*
488: * 4.3 compat sockaddr, move to compat file later
489: */
490: struct osockaddr {
1.63 kleink 491: __uint16_t sa_family; /* address family */
1.60 kleink 492: char sa_data[14]; /* up to 14 bytes of direct address */
1.1 cgd 493: };
494:
495: /*
496: * 4.3-compat message header (move to compat file later).
497: */
498: struct omsghdr {
1.63 kleink 499: __caddr_t msg_name; /* optional address */
500: int msg_namelen; /* size of address */
501: struct iovec *msg_iov; /* scatter/gather array */
502: int msg_iovlen; /* # elements in msg_iov */
503: __caddr_t msg_accrights; /* access rights sent/received */
504: int msg_accrightslen;
1.1 cgd 505: };
1.42 kleink 506: #endif
1.51 itojun 507:
1.59 toshii 508: #include <sys/cdefs.h>
509:
510: __BEGIN_DECLS
1.51 itojun 511: int __cmsg_alignbytes __P((void));
1.59 toshii 512: __END_DECLS
1.1 cgd 513:
1.12 briggs 514: #ifndef _KERNEL
1.1 cgd 515:
516: __BEGIN_DECLS
1.65 ! kleink 517: int accept __P((int, struct sockaddr * __restrict, socklen_t * __restrict));
1.42 kleink 518: int bind __P((int, const struct sockaddr *, socklen_t));
519: int connect __P((int, const struct sockaddr *, socklen_t));
1.65 ! kleink 520: int getpeername __P((int, struct sockaddr * __restrict,
! 521: socklen_t * __restrict));
! 522: int getsockname __P((int, struct sockaddr * __restrict,
! 523: socklen_t * __restrict));
! 524: int getsockopt __P((int, int, int, void * __restrict,
! 525: socklen_t * __restrict));
1.1 cgd 526: int listen __P((int, int));
1.8 mycroft 527: ssize_t recv __P((int, void *, size_t, int));
1.65 ! kleink 528: ssize_t recvfrom __P((int, void * __restrict, size_t, int,
! 529: struct sockaddr * __restrict, socklen_t * __restrict));
1.8 mycroft 530: ssize_t recvmsg __P((int, struct msghdr *, int));
531: ssize_t send __P((int, const void *, size_t, int));
532: ssize_t sendto __P((int, const void *,
1.42 kleink 533: size_t, int, const struct sockaddr *, socklen_t));
1.8 mycroft 534: ssize_t sendmsg __P((int, const struct msghdr *, int));
1.42 kleink 535: int setsockopt __P((int, int, int, const void *, socklen_t));
1.1 cgd 536: int shutdown __P((int, int));
1.64 kleink 537: int sockatmark __P((int));
1.1 cgd 538: int socket __P((int, int, int));
539: int socketpair __P((int, int, int, int *));
540: __END_DECLS
1.14 christos 541: #endif /* !_KERNEL */
1.1 cgd 542:
1.2 mycroft 543: #endif /* !_SYS_SOCKET_H_ */
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