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Annotation of src/sys/sys/socket.h, Revision 1.46

1.46    ! kleink      1: /*     $NetBSD: socket.h,v 1.45 1999/07/01 20:09:57 itojun 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:  */
                     77: typedef        unsigned int    socklen_t;
                     78:
                     79: /*
                     80:  * Socket types.
1.1       cgd        81:  */
                     82: #define        SOCK_STREAM     1               /* stream socket */
                     83: #define        SOCK_DGRAM      2               /* datagram socket */
                     84: #define        SOCK_RAW        3               /* raw-protocol interface */
                     85: #define        SOCK_RDM        4               /* reliably-delivered message */
                     86: #define        SOCK_SEQPACKET  5               /* sequenced packet stream */
                     87:
                     88: /*
                     89:  * Option flags per-socket.
                     90:  */
                     91: #define        SO_DEBUG        0x0001          /* turn on debugging info recording */
                     92: #define        SO_ACCEPTCONN   0x0002          /* socket has had listen() */
                     93: #define        SO_REUSEADDR    0x0004          /* allow local address reuse */
                     94: #define        SO_KEEPALIVE    0x0008          /* keep connections alive */
                     95: #define        SO_DONTROUTE    0x0010          /* just use interface addresses */
                     96: #define        SO_BROADCAST    0x0020          /* permit sending of broadcast msgs */
                     97: #define        SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
                     98: #define        SO_LINGER       0x0080          /* linger on close if data present */
                     99: #define        SO_OOBINLINE    0x0100          /* leave received OOB data in line */
1.8       mycroft   100: #define        SO_REUSEPORT    0x0200          /* allow local address & port reuse */
1.18      thorpej   101: #define        SO_TIMESTAMP    0x0400          /* timestamp received dgram traffic */
1.1       cgd       102:
                    103: /*
                    104:  * Additional options, not kept in so_options.
                    105:  */
                    106: #define SO_SNDBUF      0x1001          /* send buffer size */
                    107: #define SO_RCVBUF      0x1002          /* receive buffer size */
                    108: #define SO_SNDLOWAT    0x1003          /* send low-water mark */
                    109: #define SO_RCVLOWAT    0x1004          /* receive low-water mark */
                    110: #define SO_SNDTIMEO    0x1005          /* send timeout */
                    111: #define SO_RCVTIMEO    0x1006          /* receive timeout */
                    112: #define        SO_ERROR        0x1007          /* get error status and clear */
                    113: #define        SO_TYPE         0x1008          /* get socket type */
                    114:
                    115: /*
                    116:  * Structure used for manipulating linger option.
                    117:  */
                    118: struct linger {
                    119:        int     l_onoff;                /* option on/off */
1.28      fvdl      120:        int     l_linger;               /* linger time in seconds */
1.1       cgd       121: };
                    122:
                    123: /*
                    124:  * Level number for (get/set)sockopt() to apply to socket itself.
                    125:  */
                    126: #define        SOL_SOCKET      0xffff          /* options for socket level */
                    127:
                    128: /*
                    129:  * Address families.
                    130:  */
                    131: #define        AF_UNSPEC       0               /* unspecified */
1.8       mycroft   132: #define        AF_LOCAL        1               /* local to host (pipes, portals) */
                    133: #define        AF_UNIX         AF_LOCAL        /* backward compatibility */
1.1       cgd       134: #define        AF_INET         2               /* internetwork: UDP, TCP, etc. */
                    135: #define        AF_IMPLINK      3               /* arpanet imp addresses */
                    136: #define        AF_PUP          4               /* pup protocols: e.g. BSP */
                    137: #define        AF_CHAOS        5               /* mit CHAOS protocols */
                    138: #define        AF_NS           6               /* XEROX NS protocols */
                    139: #define        AF_ISO          7               /* ISO protocols */
                    140: #define        AF_OSI          AF_ISO
                    141: #define        AF_ECMA         8               /* european computer manufacturers */
                    142: #define        AF_DATAKIT      9               /* datakit protocols */
                    143: #define        AF_CCITT        10              /* CCITT protocols, X.25 etc */
                    144: #define        AF_SNA          11              /* IBM SNA */
                    145: #define AF_DECnet      12              /* DECnet */
                    146: #define AF_DLI         13              /* DEC Direct data link interface */
                    147: #define AF_LAT         14              /* LAT */
                    148: #define        AF_HYLINK       15              /* NSC Hyperchannel */
                    149: #define        AF_APPLETALK    16              /* Apple Talk */
                    150: #define        AF_ROUTE        17              /* Internal Routing Protocol */
                    151: #define        AF_LINK         18              /* Link layer interface */
1.42      kleink    152: #if !defined(_XOPEN_SOURCE)
1.1       cgd       153: #define        pseudo_AF_XTP   19              /* eXpress Transfer Protocol (no AF) */
1.42      kleink    154: #endif
1.8       mycroft   155: #define        AF_COIP         20              /* connection-oriented IP, aka ST II */
                    156: #define        AF_CNT          21              /* Computer Network Technology */
1.42      kleink    157: #if !defined(_XOPEN_SOURCE)
1.8       mycroft   158: #define pseudo_AF_RTIP 22              /* Help Identify RTIP packets */
1.42      kleink    159: #endif
1.8       mycroft   160: #define        AF_IPX          23              /* Novell Internet Protocol */
1.21      sommerfe  161: #define        AF_INET6        24              /* IP version 6 */
1.42      kleink    162: #if !defined(_XOPEN_SOURCE)
1.8       mycroft   163: #define pseudo_AF_PIP  25              /* Help Identify PIP packets */
1.42      kleink    164: #endif
1.17      chuck     165: #define AF_ISDN                26              /* Integrated Services Digital Network*/
                    166: #define AF_E164                AF_ISDN         /* CCITT E.164 recommendation */
                    167: #define AF_NATM                27              /* native ATM access */
1.19      is        168: #define AF_ARP         28              /* (rev.) addr. res. prot. (RFC 826) */
1.42      kleink    169: #if !defined(_XOPEN_SOURCE)
1.21      sommerfe  170: #define pseudo_AF_KEY  29              /* Internal key management protocol  */
1.31      thorpej   171: #define        pseudo_AF_HDRCMPLT 30           /* Used by BPF to not rewrite hdrs
                    172:                                           in interface output routine */
1.42      kleink    173: #endif
1.1       cgd       174:
1.31      thorpej   175: #define        AF_MAX          31
1.1       cgd       176:
                    177: /*
1.26      thorpej   178:  * Structure used by kernel to store most
                    179:  * addresses.
1.1       cgd       180:  */
                    181: struct sockaddr {
                    182:        u_char  sa_len;                 /* total length */
                    183:        u_char  sa_family;              /* address family */
                    184:        char    sa_data[14];            /* actually longer; address value */
1.26      thorpej   185: };
1.1       cgd       186:
1.42      kleink    187: #if defined(_KERNEL)
1.1       cgd       188: /*
                    189:  * Structure used by kernel to pass protocol
                    190:  * information in raw sockets.
                    191:  */
                    192: struct sockproto {
                    193:        u_short sp_family;              /* address family */
                    194:        u_short sp_protocol;            /* protocol */
                    195: };
1.42      kleink    196: #endif /* _KERNEL */
1.1       cgd       197:
1.44      itojun    198: #if 1
                    199: /*
                    200:  * RFC 2553: protocol-independent placeholder for socket addresses
                    201:  */
                    202: #define _SS_MAXSIZE    128
                    203: #define _SS_ALIGNSIZE  (sizeof(int64_t))
                    204: #define _SS_PAD1SIZE   (_SS_ALIGNSIZE - sizeof(u_char) * 2)
                    205: #define _SS_PAD2SIZE   (_SS_MAXSIZE - sizeof(u_char) * 2 - \
                    206:                                _SS_PAD1SIZE - _SS_ALIGNSIZE)
                    207:
1.46    ! kleink    208: #if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 500
1.44      itojun    209: struct sockaddr_storage {
                    210:        u_char  __ss_len;       /* address length */
                    211:        u_char  __ss_family;    /* address family */
                    212:        char    __ss_pad1[_SS_PAD1SIZE];
                    213:        int64_t __ss_align;     /* force desired structure storage alignment */
                    214:        char    __ss_pad2[_SS_PAD2SIZE];
                    215: };
1.46    ! kleink    216: #endif /* !_XOPEN_SOURCE || ... */
        !           217: #endif /* 1 */
1.44      itojun    218:
1.1       cgd       219: /*
                    220:  * Protocol families, same as address families for now.
                    221:  */
                    222: #define        PF_UNSPEC       AF_UNSPEC
1.8       mycroft   223: #define        PF_LOCAL        AF_LOCAL
                    224: #define        PF_UNIX         PF_LOCAL        /* backward compatibility */
1.1       cgd       225: #define        PF_INET         AF_INET
1.44      itojun    226: #define        PF_INET6        AF_INET6
1.1       cgd       227: #define        PF_IMPLINK      AF_IMPLINK
                    228: #define        PF_PUP          AF_PUP
                    229: #define        PF_CHAOS        AF_CHAOS
                    230: #define        PF_NS           AF_NS
                    231: #define        PF_ISO          AF_ISO
                    232: #define        PF_OSI          AF_ISO
                    233: #define        PF_ECMA         AF_ECMA
                    234: #define        PF_DATAKIT      AF_DATAKIT
                    235: #define        PF_CCITT        AF_CCITT
                    236: #define        PF_SNA          AF_SNA
                    237: #define PF_DECnet      AF_DECnet
                    238: #define PF_DLI         AF_DLI
                    239: #define PF_LAT         AF_LAT
                    240: #define        PF_HYLINK       AF_HYLINK
                    241: #define        PF_APPLETALK    AF_APPLETALK
                    242: #define        PF_ROUTE        AF_ROUTE
                    243: #define        PF_LINK         AF_LINK
1.42      kleink    244: #if !defined(_XOPEN_SOURCE)
1.1       cgd       245: #define        PF_XTP          pseudo_AF_XTP   /* really just proto family, no AF */
1.42      kleink    246: #endif
1.8       mycroft   247: #define        PF_COIP         AF_COIP
                    248: #define        PF_CNT          AF_CNT
1.21      sommerfe  249: #define        PF_INET6        AF_INET6
1.8       mycroft   250: #define        PF_IPX          AF_IPX          /* same format as AF_NS */
1.42      kleink    251: #if !defined(_XOPEN_SOURCE)
1.8       mycroft   252: #define PF_RTIP                pseudo_AF_FTIP  /* same format as AF_INET */
                    253: #define PF_PIP         pseudo_AF_PIP
1.42      kleink    254: #endif
1.20      is        255: #define PF_ISDN                AF_ISDN         /* same as E164 */
                    256: #define PF_E164                AF_E164
1.17      chuck     257: #define PF_NATM                AF_NATM
1.19      is        258: #define PF_ARP         AF_ARP
1.42      kleink    259: #if !defined(_XOPEN_SOURCE)
1.21      sommerfe  260: #define PF_KEY                 pseudo_AF_KEY   /* like PF_ROUTE, only for key mgmt */
1.42      kleink    261: #endif
1.1       cgd       262:
                    263: #define        PF_MAX          AF_MAX
                    264:
1.42      kleink    265: #if !defined(_XOPEN_SOURCE)
1.1       cgd       266: /*
1.27      thorpej   267:  * Socket credentials.
                    268:  */
                    269: struct sockcred {
                    270:        uid_t   sc_uid;                 /* real user id */
                    271:        uid_t   sc_euid;                /* effective user id */
                    272:        gid_t   sc_gid;                 /* real group id */
                    273:        gid_t   sc_egid;                /* effective group id */
                    274:        int     sc_ngroups;             /* number of supplemental groups */
                    275:        gid_t   sc_groups[1];           /* variable length */
                    276: };
                    277:
                    278: /*
                    279:  * Compute size of a sockcred structure with groups.
                    280:  */
                    281: #define        SOCKCREDSIZE(ngrps) \
                    282:        (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
1.42      kleink    283: #endif /* !_XOPEN_SOURCE */
1.27      thorpej   284:
1.38      kleink    285:
                    286: #if !defined(_XOPEN_SOURCE)
1.27      thorpej   287: /*
1.8       mycroft   288:  * Definitions for network related sysctl, CTL_NET.
                    289:  *
                    290:  * Second level is protocol family.
                    291:  * Third level is protocol number.
                    292:  *
                    293:  * Further levels are defined by the individual families below.
                    294:  */
                    295: #define NET_MAXID      AF_MAX
                    296:
                    297: #define CTL_NET_NAMES { \
                    298:        { 0, 0 }, \
1.28      fvdl      299:        { "local", CTLTYPE_NODE }, \
1.8       mycroft   300:        { "inet", CTLTYPE_NODE }, \
                    301:        { "implink", CTLTYPE_NODE }, \
                    302:        { "pup", CTLTYPE_NODE }, \
                    303:        { "chaos", CTLTYPE_NODE }, \
                    304:        { "xerox_ns", CTLTYPE_NODE }, \
                    305:        { "iso", CTLTYPE_NODE }, \
                    306:        { "emca", CTLTYPE_NODE }, \
                    307:        { "datakit", CTLTYPE_NODE }, \
                    308:        { "ccitt", CTLTYPE_NODE }, \
                    309:        { "ibm_sna", CTLTYPE_NODE }, \
                    310:        { "decnet", CTLTYPE_NODE }, \
                    311:        { "dec_dli", CTLTYPE_NODE }, \
                    312:        { "lat", CTLTYPE_NODE }, \
                    313:        { "hylink", CTLTYPE_NODE }, \
                    314:        { "appletalk", CTLTYPE_NODE }, \
                    315:        { "route", CTLTYPE_NODE }, \
                    316:        { "link_layer", CTLTYPE_NODE }, \
                    317:        { "xtp", CTLTYPE_NODE }, \
                    318:        { "coip", CTLTYPE_NODE }, \
                    319:        { "cnt", CTLTYPE_NODE }, \
                    320:        { "rtip", CTLTYPE_NODE }, \
                    321:        { "ipx", CTLTYPE_NODE }, \
1.21      sommerfe  322:        { "inet6", CTLTYPE_NODE }, \
1.8       mycroft   323:        { "pip", CTLTYPE_NODE }, \
1.20      is        324:        { "isdn", CTLTYPE_NODE }, \
1.17      chuck     325:        { "natm", CTLTYPE_NODE }, \
1.20      is        326:        { "arp", CTLTYPE_NODE }, \
1.21      sommerfe  327:        { "key", CTLTYPE_NODE }, \
1.8       mycroft   328: }
1.38      kleink    329: #endif /* !_XOPEN_SOURCE */
1.8       mycroft   330:
1.38      kleink    331: #if !defined(_XOPEN_SOURCE)
1.8       mycroft   332: /*
                    333:  * PF_ROUTE - Routing table
                    334:  *
                    335:  * Three additional levels are defined:
                    336:  *     Fourth: address family, 0 is wildcard
                    337:  *     Fifth: type of info, defined below
                    338:  *     Sixth: flag(s) to mask with for NET_RT_FLAGS
                    339:  */
                    340: #define NET_RT_DUMP    1               /* dump; may limit to a.f. */
                    341: #define NET_RT_FLAGS   2               /* by flags, e.g. RESOLVING */
                    342: #define NET_RT_IFLIST  3               /* survey interface list */
                    343: #define        NET_RT_MAXID    4
                    344:
                    345: #define CTL_NET_RT_NAMES { \
                    346:        { 0, 0 }, \
                    347:        { "dump", CTLTYPE_STRUCT }, \
                    348:        { "flags", CTLTYPE_STRUCT }, \
                    349:        { "iflist", CTLTYPE_STRUCT }, \
                    350: }
1.38      kleink    351: #endif /* !_XOPEN_SOURCE */
1.8       mycroft   352:
                    353: /*
1.13      mycroft   354:  * Maximum queue length specifiable by listen(2).
1.1       cgd       355:  */
1.16      neil      356:
1.13      mycroft   357: #define        SOMAXCONN       128
1.16      neil      358:
1.1       cgd       359: /*
                    360:  * Message header for recvmsg and sendmsg calls.
                    361:  * Used value-result for recvmsg, value only for sendmsg.
                    362:  */
                    363: struct msghdr {
1.42      kleink    364:        void            *msg_name;      /* optional address */
                    365:        socklen_t       msg_namelen;    /* size of address */
                    366:        struct iovec    *msg_iov;       /* scatter/gather array */
                    367:        int             msg_iovlen;     /* # elements in msg_iov */
                    368:        void            *msg_control;   /* ancillary data, see below */
                    369:        socklen_t       msg_controllen; /* ancillary data buffer len */
                    370:        int             msg_flags;      /* flags on received message */
1.1       cgd       371: };
                    372:
                    373: #define        MSG_OOB         0x1             /* process out-of-band data */
                    374: #define        MSG_PEEK        0x2             /* peek at incoming message */
                    375: #define        MSG_DONTROUTE   0x4             /* send without using routing tables */
                    376: #define        MSG_EOR         0x8             /* data completes record */
                    377: #define        MSG_TRUNC       0x10            /* data discarded before delivery */
                    378: #define        MSG_CTRUNC      0x20            /* control data lost before delivery */
                    379: #define        MSG_WAITALL     0x40            /* wait for full request or error */
1.8       mycroft   380: #define        MSG_DONTWAIT    0x80            /* this message should be nonblocking */
1.30      matt      381: #define        MSG_BCAST       0x100           /* this message was rcvd using link-level brdcst */
                    382: #define        MSG_MCAST       0x200           /* this message was rcvd using link-level mcast */
1.1       cgd       383:
                    384: /*
                    385:  * Header for ancillary data objects in msg_control buffer.
                    386:  * Used for additional information with/about a datagram
                    387:  * not expressible by flags.  The format is a sequence
                    388:  * of message elements headed by cmsghdr structures.
                    389:  */
                    390: struct cmsghdr {
1.42      kleink    391:        socklen_t       cmsg_len;       /* data byte count, including hdr */
                    392:        int             cmsg_level;     /* originating protocol */
                    393:        int             cmsg_type;      /* protocol-specific type */
1.1       cgd       394: /* followed by u_char  cmsg_data[]; */
                    395: };
                    396:
1.8       mycroft   397: /* given pointer to struct cmsghdr, return pointer to data */
1.1       cgd       398: #define        CMSG_DATA(cmsg)         ((u_char *)((cmsg) + 1))
                    399:
1.44      itojun    400: /*
                    401:  * Alignment requirement for CMSG struct manipulation.
                    402:  * This is different from ALIGN() defined in ARCH/include/param.h.
                    403:  * XXX think again carefully about architecture dependencies.
                    404:  */
                    405: #define CMSG_ALIGN(n)          (((n) + 3) & ~3)
                    406:
1.8       mycroft   407: /* given pointer to struct cmsghdr, return pointer to next cmsghdr */
1.1       cgd       408: #define        CMSG_NXTHDR(mhdr, cmsg) \
                    409:        (((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \
1.45      itojun    410:            (((caddr_t)(mhdr)->msg_control) + (mhdr)->msg_controllen)) ? \
1.1       cgd       411:            (struct cmsghdr *)NULL : \
1.44      itojun    412:            (struct cmsghdr *)((caddr_t)(cmsg) + CMSG_ALIGN((cmsg)->cmsg_len)))
1.1       cgd       413:
                    414: #define        CMSG_FIRSTHDR(mhdr)     ((struct cmsghdr *)(mhdr)->msg_control)
                    415:
1.44      itojun    416: #define CMSG_SPACE(l)  (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(l))
                    417: #define CMSG_LEN(l)    (CMSG_ALIGN(sizeof(struct cmsghdr)) + (l))
                    418:
1.1       cgd       419: /* "Socket"-level control message types: */
                    420: #define        SCM_RIGHTS      0x01            /* access rights (array of int) */
1.42      kleink    421: #if !defined(_XOPEN_SOURCE)
1.18      thorpej   422: #define        SCM_TIMESTAMP   0x02            /* timestamp (struct timeval) */
1.42      kleink    423: #define        SCM_CREDS       0x04            /* credentials (struct sockcred) */
                    424: #endif
1.29      kleink    425:
                    426: /*
                    427:  * Types of socket shutdown(2).
                    428:  */
                    429: #define        SHUT_RD         0               /* Disallow further receives. */
                    430: #define        SHUT_WR         1               /* Disallow further sends. */
                    431: #define        SHUT_RDWR       2               /* Disallow further sends/receives. */
1.1       cgd       432:
1.42      kleink    433: #if !defined(_XOPEN_SOURCE)
1.1       cgd       434: /*
                    435:  * 4.3 compat sockaddr, move to compat file later
                    436:  */
                    437: struct osockaddr {
                    438:        u_short sa_family;              /* address family */
                    439:        char    sa_data[14];            /* up to 14 bytes of direct address */
                    440: };
                    441:
                    442: /*
                    443:  * 4.3-compat message header (move to compat file later).
                    444:  */
                    445: struct omsghdr {
                    446:        caddr_t msg_name;               /* optional address */
                    447:        int     msg_namelen;            /* size of address */
                    448:        struct  iovec *msg_iov;         /* scatter/gather array */
                    449:        int     msg_iovlen;             /* # elements in msg_iov */
                    450:        caddr_t msg_accrights;          /* access rights sent/received */
                    451:        int     msg_accrightslen;
                    452: };
1.42      kleink    453: #endif
1.1       cgd       454:
1.12      briggs    455: #ifndef        _KERNEL
1.1       cgd       456:
                    457: #include <sys/cdefs.h>
                    458:
                    459: __BEGIN_DECLS
1.42      kleink    460: int    accept __P((int, struct sockaddr *, socklen_t *));
                    461: int    bind __P((int, const struct sockaddr *, socklen_t));
                    462: int    connect __P((int, const struct sockaddr *, socklen_t));
                    463: int    getpeername __P((int, struct sockaddr *, socklen_t *));
                    464: int    getsockname __P((int, struct sockaddr *, socklen_t *));
                    465: int    getsockopt __P((int, int, int, void *, socklen_t *));
1.1       cgd       466: int    listen __P((int, int));
1.8       mycroft   467: ssize_t        recv __P((int, void *, size_t, int));
1.42      kleink    468: ssize_t        recvfrom __P((int, void *, size_t, int, struct sockaddr *,
                    469:            socklen_t *));
1.8       mycroft   470: ssize_t        recvmsg __P((int, struct msghdr *, int));
                    471: ssize_t        send __P((int, const void *, size_t, int));
                    472: ssize_t        sendto __P((int, const void *,
1.42      kleink    473:            size_t, int, const struct sockaddr *, socklen_t));
1.8       mycroft   474: ssize_t        sendmsg __P((int, const struct msghdr *, int));
1.42      kleink    475: int    setsockopt __P((int, int, int, const void *, socklen_t));
1.1       cgd       476: int    shutdown __P((int, int));
                    477: int    socket __P((int, int, int));
                    478: int    socketpair __P((int, int, int, int *));
                    479: __END_DECLS
1.14      christos  480: #else
1.41      drochner  481: #ifdef COMPAT_OLDSOCK
                    482: #define MSG_COMPAT     0x8000
                    483: #endif
1.44      itojun    484:
                    485: void   pfctlinput __P((int, struct sockaddr *));
1.14      christos  486: #endif /* !_KERNEL */
1.1       cgd       487:
1.2       mycroft   488: #endif /* !_SYS_SOCKET_H_ */

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