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Annotation of 43BSD/sys/h/socket.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982,1985, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)socket.h    7.1 (Berkeley) 6/4/86
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * Definitions related to sockets: types, address families, options.
        !            11:  */
        !            12: 
        !            13: /*
        !            14:  * Types
        !            15:  */
        !            16: #define        SOCK_STREAM     1               /* stream socket */
        !            17: #define        SOCK_DGRAM      2               /* datagram socket */
        !            18: #define        SOCK_RAW        3               /* raw-protocol interface */
        !            19: #define        SOCK_RDM        4               /* reliably-delivered message */
        !            20: #define        SOCK_SEQPACKET  5               /* sequenced packet stream */
        !            21: 
        !            22: /*
        !            23:  * Option flags per-socket.
        !            24:  */
        !            25: #define        SO_DEBUG        0x0001          /* turn on debugging info recording */
        !            26: #define        SO_ACCEPTCONN   0x0002          /* socket has had listen() */
        !            27: #define        SO_REUSEADDR    0x0004          /* allow local address reuse */
        !            28: #define        SO_KEEPALIVE    0x0008          /* keep connections alive */
        !            29: #define        SO_DONTROUTE    0x0010          /* just use interface addresses */
        !            30: #define        SO_BROADCAST    0x0020          /* permit sending of broadcast msgs */
        !            31: #define        SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
        !            32: #define        SO_LINGER       0x0080          /* linger on close if data present */
        !            33: #define        SO_OOBINLINE    0x0100          /* leave received OOB data in line */
        !            34: 
        !            35: /*
        !            36:  * Additional options, not kept in so_options.
        !            37:  */
        !            38: #define SO_SNDBUF      0x1001          /* send buffer size */
        !            39: #define SO_RCVBUF      0x1002          /* receive buffer size */
        !            40: #define SO_SNDLOWAT    0x1003          /* send low-water mark */
        !            41: #define SO_RCVLOWAT    0x1004          /* receive low-water mark */
        !            42: #define SO_SNDTIMEO    0x1005          /* send timeout */
        !            43: #define SO_RCVTIMEO    0x1006          /* receive timeout */
        !            44: #define        SO_ERROR        0x1007          /* get error status and clear */
        !            45: #define        SO_TYPE         0x1008          /* get socket type */
        !            46: 
        !            47: /*
        !            48:  * Structure used for manipulating linger option.
        !            49:  */
        !            50: struct linger {
        !            51:        int     l_onoff;                /* option on/off */
        !            52:        int     l_linger;               /* linger time */
        !            53: };
        !            54: 
        !            55: /*
        !            56:  * Level number for (get/set)sockopt() to apply to socket itself.
        !            57:  */
        !            58: #define        SOL_SOCKET      0xffff          /* options for socket level */
        !            59: 
        !            60: /*
        !            61:  * Address families.
        !            62:  */
        !            63: #define        AF_UNSPEC       0               /* unspecified */
        !            64: #define        AF_UNIX         1               /* local to host (pipes, portals) */
        !            65: #define        AF_INET         2               /* internetwork: UDP, TCP, etc. */
        !            66: #define        AF_IMPLINK      3               /* arpanet imp addresses */
        !            67: #define        AF_PUP          4               /* pup protocols: e.g. BSP */
        !            68: #define        AF_CHAOS        5               /* mit CHAOS protocols */
        !            69: #define        AF_NS           6               /* XEROX NS protocols */
        !            70: #define        AF_NBS          7               /* nbs protocols */
        !            71: #define        AF_ECMA         8               /* european computer manufacturers */
        !            72: #define        AF_DATAKIT      9               /* datakit protocols */
        !            73: #define        AF_CCITT        10              /* CCITT protocols, X.25 etc */
        !            74: #define        AF_SNA          11              /* IBM SNA */
        !            75: #define AF_DECnet      12              /* DECnet */
        !            76: #define AF_DLI         13              /* Direct data link interface */
        !            77: #define AF_LAT         14              /* LAT */
        !            78: #define        AF_HYLINK       15              /* NSC Hyperchannel */
        !            79: #define        AF_APPLETALK    16              /* Apple Talk */
        !            80: 
        !            81: #define        AF_MAX          17
        !            82: 
        !            83: /*
        !            84:  * Structure used by kernel to store most
        !            85:  * addresses.
        !            86:  */
        !            87: struct sockaddr {
        !            88:        u_short sa_family;              /* address family */
        !            89:        char    sa_data[14];            /* up to 14 bytes of direct address */
        !            90: };
        !            91: 
        !            92: /*
        !            93:  * Structure used by kernel to pass protocol
        !            94:  * information in raw sockets.
        !            95:  */
        !            96: struct sockproto {
        !            97:        u_short sp_family;              /* address family */
        !            98:        u_short sp_protocol;            /* protocol */
        !            99: };
        !           100: 
        !           101: /*
        !           102:  * Protocol families, same as address families for now.
        !           103:  */
        !           104: #define        PF_UNSPEC       AF_UNSPEC
        !           105: #define        PF_UNIX         AF_UNIX
        !           106: #define        PF_INET         AF_INET
        !           107: #define        PF_IMPLINK      AF_IMPLINK
        !           108: #define        PF_PUP          AF_PUP
        !           109: #define        PF_CHAOS        AF_CHAOS
        !           110: #define        PF_NS           AF_NS
        !           111: #define        PF_NBS          AF_NBS
        !           112: #define        PF_ECMA         AF_ECMA
        !           113: #define        PF_DATAKIT      AF_DATAKIT
        !           114: #define        PF_CCITT        AF_CCITT
        !           115: #define        PF_SNA          AF_SNA
        !           116: #define PF_DECnet      AF_DECnet
        !           117: #define PF_DLI         AF_DLI
        !           118: #define PF_LAT         AF_LAT
        !           119: #define        PF_HYLINK       AF_HYLINK
        !           120: #define        PF_APPLETALK    AF_APPLETALK
        !           121: 
        !           122: #define        PF_MAX          AF_MAX
        !           123: 
        !           124: /*
        !           125:  * Maximum queue length specifiable by listen.
        !           126:  */
        !           127: #define        SOMAXCONN       5
        !           128: 
        !           129: /*
        !           130:  * Message header for recvmsg and sendmsg calls.
        !           131:  */
        !           132: struct msghdr {
        !           133:        caddr_t msg_name;               /* optional address */
        !           134:        int     msg_namelen;            /* size of address */
        !           135:        struct  iovec *msg_iov;         /* scatter/gather array */
        !           136:        int     msg_iovlen;             /* # elements in msg_iov */
        !           137:        caddr_t msg_accrights;          /* access rights sent/received */
        !           138:        int     msg_accrightslen;
        !           139: };
        !           140: 
        !           141: #define        MSG_OOB         0x1             /* process out-of-band data */
        !           142: #define        MSG_PEEK        0x2             /* peek at incoming message */
        !           143: #define        MSG_DONTROUTE   0x4             /* send without using routing tables */
        !           144: 
        !           145: #define        MSG_MAXIOVLEN   16

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