Annotation of src/sys/sys/socket.h, Revision 1.67
1.67 ! bjh21 1: /* $NetBSD: socket.h,v 1.66 2003/04/19 21:30:29 christos 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:
1.67 ! bjh21 70: #include <sys/featuretest.h>
! 71:
1.1 cgd 72: /*
73: * Definitions related to sockets: types, address families, options.
74: */
75:
76: /*
1.42 kleink 77: * Data types.
78: */
1.55 itojun 79: #include <sys/ansi.h>
1.56 kleink 80:
81: #ifndef sa_family_t
82: typedef __sa_family_t sa_family_t;
1.58 kleink 83: #define sa_family_t __sa_family_t
1.56 kleink 84: #endif
85:
1.55 itojun 86: #ifndef socklen_t
87: typedef __socklen_t socklen_t;
1.58 kleink 88: #define socklen_t __socklen_t
1.55 itojun 89: #endif
1.42 kleink 90:
1.63 kleink 91: #include <machine/ansi.h>
92:
93: #ifdef _BSD_SIZE_T_
94: typedef _BSD_SIZE_T_ size_t;
95: #undef _BSD_SIZE_T_
96: #endif
97:
98: #ifdef _BSD_SSIZE_T_
99: typedef _BSD_SSIZE_T_ ssize_t;
100: #undef _BSD_SSIZE_T_
101: #endif
102:
103: #include <sys/uio.h>
104:
1.42 kleink 105: /*
106: * Socket types.
1.1 cgd 107: */
108: #define SOCK_STREAM 1 /* stream socket */
109: #define SOCK_DGRAM 2 /* datagram socket */
110: #define SOCK_RAW 3 /* raw-protocol interface */
111: #define SOCK_RDM 4 /* reliably-delivered message */
112: #define SOCK_SEQPACKET 5 /* sequenced packet stream */
113:
114: /*
115: * Option flags per-socket.
116: */
117: #define SO_DEBUG 0x0001 /* turn on debugging info recording */
118: #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
119: #define SO_REUSEADDR 0x0004 /* allow local address reuse */
120: #define SO_KEEPALIVE 0x0008 /* keep connections alive */
121: #define SO_DONTROUTE 0x0010 /* just use interface addresses */
122: #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
123: #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
124: #define SO_LINGER 0x0080 /* linger on close if data present */
125: #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
1.8 mycroft 126: #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
1.18 thorpej 127: #define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */
1.1 cgd 128:
129: /*
130: * Additional options, not kept in so_options.
131: */
132: #define SO_SNDBUF 0x1001 /* send buffer size */
133: #define SO_RCVBUF 0x1002 /* receive buffer size */
134: #define SO_SNDLOWAT 0x1003 /* send low-water mark */
135: #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
136: #define SO_SNDTIMEO 0x1005 /* send timeout */
137: #define SO_RCVTIMEO 0x1006 /* receive timeout */
138: #define SO_ERROR 0x1007 /* get error status and clear */
139: #define SO_TYPE 0x1008 /* get socket type */
140:
141: /*
142: * Structure used for manipulating linger option.
143: */
144: struct linger {
145: int l_onoff; /* option on/off */
1.28 fvdl 146: int l_linger; /* linger time in seconds */
1.1 cgd 147: };
148:
149: /*
150: * Level number for (get/set)sockopt() to apply to socket itself.
151: */
152: #define SOL_SOCKET 0xffff /* options for socket level */
153:
154: /*
155: * Address families.
156: */
157: #define AF_UNSPEC 0 /* unspecified */
1.8 mycroft 158: #define AF_LOCAL 1 /* local to host (pipes, portals) */
159: #define AF_UNIX AF_LOCAL /* backward compatibility */
1.1 cgd 160: #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
161: #define AF_IMPLINK 3 /* arpanet imp addresses */
162: #define AF_PUP 4 /* pup protocols: e.g. BSP */
163: #define AF_CHAOS 5 /* mit CHAOS protocols */
164: #define AF_NS 6 /* XEROX NS protocols */
165: #define AF_ISO 7 /* ISO protocols */
166: #define AF_OSI AF_ISO
167: #define AF_ECMA 8 /* european computer manufacturers */
168: #define AF_DATAKIT 9 /* datakit protocols */
169: #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
170: #define AF_SNA 11 /* IBM SNA */
171: #define AF_DECnet 12 /* DECnet */
172: #define AF_DLI 13 /* DEC Direct data link interface */
173: #define AF_LAT 14 /* LAT */
174: #define AF_HYLINK 15 /* NSC Hyperchannel */
175: #define AF_APPLETALK 16 /* Apple Talk */
176: #define AF_ROUTE 17 /* Internal Routing Protocol */
177: #define AF_LINK 18 /* Link layer interface */
1.67 ! bjh21 178: #if defined(_NETBSD_SOURCE)
1.1 cgd 179: #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
1.42 kleink 180: #endif
1.8 mycroft 181: #define AF_COIP 20 /* connection-oriented IP, aka ST II */
182: #define AF_CNT 21 /* Computer Network Technology */
1.67 ! bjh21 183: #if defined(_NETBSD_SOURCE)
1.8 mycroft 184: #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */
1.42 kleink 185: #endif
1.8 mycroft 186: #define AF_IPX 23 /* Novell Internet Protocol */
1.21 sommerfe 187: #define AF_INET6 24 /* IP version 6 */
1.67 ! bjh21 188: #if defined(_NETBSD_SOURCE)
1.8 mycroft 189: #define pseudo_AF_PIP 25 /* Help Identify PIP packets */
1.42 kleink 190: #endif
1.17 chuck 191: #define AF_ISDN 26 /* Integrated Services Digital Network*/
192: #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */
193: #define AF_NATM 27 /* native ATM access */
1.19 is 194: #define AF_ARP 28 /* (rev.) addr. res. prot. (RFC 826) */
1.67 ! bjh21 195: #if defined(_NETBSD_SOURCE)
1.21 sommerfe 196: #define pseudo_AF_KEY 29 /* Internal key management protocol */
1.31 thorpej 197: #define pseudo_AF_HDRCMPLT 30 /* Used by BPF to not rewrite hdrs
198: in interface output routine */
1.42 kleink 199: #endif
1.1 cgd 200:
1.31 thorpej 201: #define AF_MAX 31
1.1 cgd 202:
203: /*
1.26 thorpej 204: * Structure used by kernel to store most
205: * addresses.
1.1 cgd 206: */
207: struct sockaddr {
1.63 kleink 208: __uint8_t sa_len; /* total length */
1.56 kleink 209: sa_family_t sa_family; /* address family */
210: char sa_data[14]; /* actually longer; address value */
1.26 thorpej 211: };
1.1 cgd 212:
1.42 kleink 213: #if defined(_KERNEL)
1.1 cgd 214: /*
215: * Structure used by kernel to pass protocol
216: * information in raw sockets.
217: */
218: struct sockproto {
219: u_short sp_family; /* address family */
220: u_short sp_protocol; /* protocol */
221: };
1.42 kleink 222: #endif /* _KERNEL */
1.1 cgd 223:
1.44 itojun 224: #if 1
225: /*
226: * RFC 2553: protocol-independent placeholder for socket addresses
227: */
228: #define _SS_MAXSIZE 128
1.63 kleink 229: #define _SS_ALIGNSIZE (sizeof(__int64_t))
1.60 kleink 230: #define _SS_PAD1SIZE (_SS_ALIGNSIZE - 2)
231: #define _SS_PAD2SIZE (_SS_MAXSIZE - 2 - \
1.44 itojun 232: _SS_PAD1SIZE - _SS_ALIGNSIZE)
233:
1.67 ! bjh21 234: #if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
1.44 itojun 235: struct sockaddr_storage {
1.63 kleink 236: __uint8_t ss_len; /* address length */
1.56 kleink 237: sa_family_t ss_family; /* address family */
238: char __ss_pad1[_SS_PAD1SIZE];
1.63 kleink 239: __int64_t __ss_align;/* force desired structure storage alignment */
1.56 kleink 240: char __ss_pad2[_SS_PAD2SIZE];
1.44 itojun 241: };
1.67 ! bjh21 242: #endif /* _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
1.46 kleink 243: #endif /* 1 */
1.44 itojun 244:
1.1 cgd 245: /*
246: * Protocol families, same as address families for now.
247: */
248: #define PF_UNSPEC AF_UNSPEC
1.8 mycroft 249: #define PF_LOCAL AF_LOCAL
250: #define PF_UNIX PF_LOCAL /* backward compatibility */
1.1 cgd 251: #define PF_INET AF_INET
252: #define PF_IMPLINK AF_IMPLINK
253: #define PF_PUP AF_PUP
254: #define PF_CHAOS AF_CHAOS
255: #define PF_NS AF_NS
256: #define PF_ISO AF_ISO
257: #define PF_OSI AF_ISO
258: #define PF_ECMA AF_ECMA
259: #define PF_DATAKIT AF_DATAKIT
260: #define PF_CCITT AF_CCITT
261: #define PF_SNA AF_SNA
262: #define PF_DECnet AF_DECnet
263: #define PF_DLI AF_DLI
264: #define PF_LAT AF_LAT
265: #define PF_HYLINK AF_HYLINK
266: #define PF_APPLETALK AF_APPLETALK
267: #define PF_ROUTE AF_ROUTE
268: #define PF_LINK AF_LINK
1.67 ! bjh21 269: #if defined(_NETBSD_SOURCE)
1.1 cgd 270: #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
1.42 kleink 271: #endif
1.8 mycroft 272: #define PF_COIP AF_COIP
273: #define PF_CNT AF_CNT
1.21 sommerfe 274: #define PF_INET6 AF_INET6
1.8 mycroft 275: #define PF_IPX AF_IPX /* same format as AF_NS */
1.67 ! bjh21 276: #if defined(_NETBSD_SOURCE)
1.8 mycroft 277: #define PF_RTIP pseudo_AF_FTIP /* same format as AF_INET */
278: #define PF_PIP pseudo_AF_PIP
1.42 kleink 279: #endif
1.20 is 280: #define PF_ISDN AF_ISDN /* same as E164 */
281: #define PF_E164 AF_E164
1.17 chuck 282: #define PF_NATM AF_NATM
1.19 is 283: #define PF_ARP AF_ARP
1.67 ! bjh21 284: #if defined(_NETBSD_SOURCE)
1.21 sommerfe 285: #define PF_KEY pseudo_AF_KEY /* like PF_ROUTE, only for key mgmt */
1.42 kleink 286: #endif
1.1 cgd 287:
288: #define PF_MAX AF_MAX
289:
1.67 ! bjh21 290: #if defined(_NETBSD_SOURCE)
1.63 kleink 291:
292: #ifndef gid_t
293: typedef __gid_t gid_t; /* group id */
294: #define gid_t __gid_t
295: #endif
296:
297: #ifndef uid_t
298: typedef __uid_t uid_t; /* user id */
299: #define uid_t __uid_t
300: #endif
301:
1.1 cgd 302: /*
1.27 thorpej 303: * Socket credentials.
304: */
305: struct sockcred {
306: uid_t sc_uid; /* real user id */
307: uid_t sc_euid; /* effective user id */
308: gid_t sc_gid; /* real group id */
309: gid_t sc_egid; /* effective group id */
310: int sc_ngroups; /* number of supplemental groups */
311: gid_t sc_groups[1]; /* variable length */
312: };
313:
314: /*
315: * Compute size of a sockcred structure with groups.
316: */
317: #define SOCKCREDSIZE(ngrps) \
318: (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
1.67 ! bjh21 319: #endif /* _NETBSD_SOURCE */
1.27 thorpej 320:
1.38 kleink 321:
1.67 ! bjh21 322: #if defined(_NETBSD_SOURCE)
1.27 thorpej 323: /*
1.8 mycroft 324: * Definitions for network related sysctl, CTL_NET.
325: *
326: * Second level is protocol family.
327: * Third level is protocol number.
328: *
329: * Further levels are defined by the individual families below.
330: */
331: #define NET_MAXID AF_MAX
332:
333: #define CTL_NET_NAMES { \
334: { 0, 0 }, \
1.28 fvdl 335: { "local", CTLTYPE_NODE }, \
1.8 mycroft 336: { "inet", CTLTYPE_NODE }, \
337: { "implink", CTLTYPE_NODE }, \
338: { "pup", CTLTYPE_NODE }, \
339: { "chaos", CTLTYPE_NODE }, \
340: { "xerox_ns", CTLTYPE_NODE }, \
341: { "iso", CTLTYPE_NODE }, \
342: { "emca", CTLTYPE_NODE }, \
343: { "datakit", CTLTYPE_NODE }, \
344: { "ccitt", CTLTYPE_NODE }, \
345: { "ibm_sna", CTLTYPE_NODE }, \
346: { "decnet", CTLTYPE_NODE }, \
347: { "dec_dli", CTLTYPE_NODE }, \
348: { "lat", CTLTYPE_NODE }, \
349: { "hylink", CTLTYPE_NODE }, \
350: { "appletalk", CTLTYPE_NODE }, \
351: { "route", CTLTYPE_NODE }, \
352: { "link_layer", CTLTYPE_NODE }, \
353: { "xtp", CTLTYPE_NODE }, \
354: { "coip", CTLTYPE_NODE }, \
355: { "cnt", CTLTYPE_NODE }, \
356: { "rtip", CTLTYPE_NODE }, \
357: { "ipx", CTLTYPE_NODE }, \
1.21 sommerfe 358: { "inet6", CTLTYPE_NODE }, \
1.8 mycroft 359: { "pip", CTLTYPE_NODE }, \
1.20 is 360: { "isdn", CTLTYPE_NODE }, \
1.17 chuck 361: { "natm", CTLTYPE_NODE }, \
1.20 is 362: { "arp", CTLTYPE_NODE }, \
1.21 sommerfe 363: { "key", CTLTYPE_NODE }, \
1.8 mycroft 364: }
1.67 ! bjh21 365: #endif /* _NETBSD_SOURCE */
1.8 mycroft 366:
1.67 ! bjh21 367: #if defined(_NETBSD_SOURCE)
1.8 mycroft 368: /*
369: * PF_ROUTE - Routing table
370: *
371: * Three additional levels are defined:
372: * Fourth: address family, 0 is wildcard
373: * Fifth: type of info, defined below
374: * Sixth: flag(s) to mask with for NET_RT_FLAGS
375: */
376: #define NET_RT_DUMP 1 /* dump; may limit to a.f. */
377: #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
1.47 bouyer 378: #define NET_RT_OIFLIST 3 /* old NET_RT_IFLIST (pre 1.5) */
379: #define NET_RT_IFLIST 4 /* survey interface list */
380: #define NET_RT_MAXID 5
1.8 mycroft 381:
382: #define CTL_NET_RT_NAMES { \
383: { 0, 0 }, \
384: { "dump", CTLTYPE_STRUCT }, \
385: { "flags", CTLTYPE_STRUCT }, \
1.47 bouyer 386: { 0, 0 }, \
1.8 mycroft 387: { "iflist", CTLTYPE_STRUCT }, \
388: }
1.67 ! bjh21 389: #endif /* _NETBSD_SOURCE */
1.8 mycroft 390:
391: /*
1.13 mycroft 392: * Maximum queue length specifiable by listen(2).
1.1 cgd 393: */
1.66 christos 394: #ifndef SOMAXCONN
1.13 mycroft 395: #define SOMAXCONN 128
1.66 christos 396: #endif
1.16 neil 397:
1.1 cgd 398: /*
399: * Message header for recvmsg and sendmsg calls.
400: * Used value-result for recvmsg, value only for sendmsg.
401: */
402: struct msghdr {
1.42 kleink 403: void *msg_name; /* optional address */
404: socklen_t msg_namelen; /* size of address */
405: struct iovec *msg_iov; /* scatter/gather array */
406: int msg_iovlen; /* # elements in msg_iov */
407: void *msg_control; /* ancillary data, see below */
408: socklen_t msg_controllen; /* ancillary data buffer len */
409: int msg_flags; /* flags on received message */
1.1 cgd 410: };
411:
412: #define MSG_OOB 0x1 /* process out-of-band data */
413: #define MSG_PEEK 0x2 /* peek at incoming message */
414: #define MSG_DONTROUTE 0x4 /* send without using routing tables */
415: #define MSG_EOR 0x8 /* data completes record */
416: #define MSG_TRUNC 0x10 /* data discarded before delivery */
417: #define MSG_CTRUNC 0x20 /* control data lost before delivery */
418: #define MSG_WAITALL 0x40 /* wait for full request or error */
1.8 mycroft 419: #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
1.30 matt 420: #define MSG_BCAST 0x100 /* this message was rcvd using link-level brdcst */
421: #define MSG_MCAST 0x200 /* this message was rcvd using link-level mcast */
1.1 cgd 422:
423: /*
424: * Header for ancillary data objects in msg_control buffer.
425: * Used for additional information with/about a datagram
426: * not expressible by flags. The format is a sequence
427: * of message elements headed by cmsghdr structures.
428: */
429: struct cmsghdr {
1.42 kleink 430: socklen_t cmsg_len; /* data byte count, including hdr */
431: int cmsg_level; /* originating protocol */
432: int cmsg_type; /* protocol-specific type */
1.1 cgd 433: /* followed by u_char cmsg_data[]; */
434: };
435:
1.8 mycroft 436: /* given pointer to struct cmsghdr, return pointer to data */
1.50 itojun 437: #define CMSG_DATA(cmsg) \
1.57 christos 438: ((u_char *)(void *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
1.1 cgd 439:
1.44 itojun 440: /*
441: * Alignment requirement for CMSG struct manipulation.
1.51 itojun 442: * This basically behaves the same as ALIGN() ARCH/include/param.h.
443: * We declare it separately for two reasons:
444: * (1) avoid dependency between machine/param.h, and (2) to sync with kernel's
445: * idea of ALIGNBYTES at runtime.
446: * without (2), we can't guarantee binary compatibility in case of future
447: * changes in ALIGNBYTES.
1.44 itojun 448: */
1.53 itojun 449: #define __CMSG_ALIGN(n) (((n) + __cmsg_alignbytes()) & ~__cmsg_alignbytes())
450: #ifdef _KERNEL
1.54 augustss 451: #define CMSG_ALIGN(n) __CMSG_ALIGN(n)
1.53 itojun 452: #endif
1.44 itojun 453:
1.8 mycroft 454: /* given pointer to struct cmsghdr, return pointer to next cmsghdr */
1.1 cgd 455: #define CMSG_NXTHDR(mhdr, cmsg) \
1.63 kleink 456: (((__caddr_t)(cmsg) + __CMSG_ALIGN((cmsg)->cmsg_len) + \
1.53 itojun 457: __CMSG_ALIGN(sizeof(struct cmsghdr)) > \
1.63 kleink 458: (((__caddr_t)(mhdr)->msg_control) + (mhdr)->msg_controllen)) ? \
1.1 cgd 459: (struct cmsghdr *)NULL : \
1.63 kleink 460: (struct cmsghdr *)((__caddr_t)(cmsg) + \
461: __CMSG_ALIGN((cmsg)->cmsg_len)))
1.1 cgd 462:
1.62 itojun 463: /*
464: * RFC 2292 requires to check msg_controllen, in case that the kernel returns
465: * an empty list for some reasons.
466: */
467: #define CMSG_FIRSTHDR(mhdr) \
468: ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
469: (struct cmsghdr *)(mhdr)->msg_control : \
470: (struct cmsghdr *)NULL)
1.1 cgd 471:
1.53 itojun 472: #define CMSG_SPACE(l) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(l))
473: #define CMSG_LEN(l) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + (l))
1.44 itojun 474:
1.1 cgd 475: /* "Socket"-level control message types: */
476: #define SCM_RIGHTS 0x01 /* access rights (array of int) */
1.67 ! bjh21 477: #if defined(_NETBSD_SOURCE)
1.18 thorpej 478: #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */
1.42 kleink 479: #define SCM_CREDS 0x04 /* credentials (struct sockcred) */
480: #endif
1.29 kleink 481:
482: /*
483: * Types of socket shutdown(2).
484: */
485: #define SHUT_RD 0 /* Disallow further receives. */
486: #define SHUT_WR 1 /* Disallow further sends. */
487: #define SHUT_RDWR 2 /* Disallow further sends/receives. */
1.1 cgd 488:
1.67 ! bjh21 489: #if defined(_NETBSD_SOURCE)
1.1 cgd 490: /*
491: * 4.3 compat sockaddr, move to compat file later
492: */
493: struct osockaddr {
1.63 kleink 494: __uint16_t sa_family; /* address family */
1.60 kleink 495: char sa_data[14]; /* up to 14 bytes of direct address */
1.1 cgd 496: };
497:
498: /*
499: * 4.3-compat message header (move to compat file later).
500: */
501: struct omsghdr {
1.63 kleink 502: __caddr_t msg_name; /* optional address */
503: int msg_namelen; /* size of address */
504: struct iovec *msg_iov; /* scatter/gather array */
505: int msg_iovlen; /* # elements in msg_iov */
506: __caddr_t msg_accrights; /* access rights sent/received */
507: int msg_accrightslen;
1.1 cgd 508: };
1.42 kleink 509: #endif
1.51 itojun 510:
1.59 toshii 511: #include <sys/cdefs.h>
512:
513: __BEGIN_DECLS
1.51 itojun 514: int __cmsg_alignbytes __P((void));
1.59 toshii 515: __END_DECLS
1.1 cgd 516:
1.12 briggs 517: #ifndef _KERNEL
1.1 cgd 518:
519: __BEGIN_DECLS
1.65 kleink 520: int accept __P((int, struct sockaddr * __restrict, socklen_t * __restrict));
1.42 kleink 521: int bind __P((int, const struct sockaddr *, socklen_t));
522: int connect __P((int, const struct sockaddr *, socklen_t));
1.65 kleink 523: int getpeername __P((int, struct sockaddr * __restrict,
524: socklen_t * __restrict));
525: int getsockname __P((int, struct sockaddr * __restrict,
526: socklen_t * __restrict));
527: int getsockopt __P((int, int, int, void * __restrict,
528: socklen_t * __restrict));
1.1 cgd 529: int listen __P((int, int));
1.8 mycroft 530: ssize_t recv __P((int, void *, size_t, int));
1.65 kleink 531: ssize_t recvfrom __P((int, void * __restrict, size_t, int,
532: struct sockaddr * __restrict, socklen_t * __restrict));
1.8 mycroft 533: ssize_t recvmsg __P((int, struct msghdr *, int));
534: ssize_t send __P((int, const void *, size_t, int));
535: ssize_t sendto __P((int, const void *,
1.42 kleink 536: size_t, int, const struct sockaddr *, socklen_t));
1.8 mycroft 537: ssize_t sendmsg __P((int, const struct msghdr *, int));
1.42 kleink 538: int setsockopt __P((int, int, int, const void *, socklen_t));
1.1 cgd 539: int shutdown __P((int, int));
1.64 kleink 540: int sockatmark __P((int));
1.1 cgd 541: int socket __P((int, int, int));
542: int socketpair __P((int, int, int, int *));
543: __END_DECLS
1.14 christos 544: #endif /* !_KERNEL */
1.1 cgd 545:
1.2 mycroft 546: #endif /* !_SYS_SOCKET_H_ */
CVSweb <webmaster@jp.NetBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to socket.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [cvs.NetBSD.org] / src / sys / sys