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Annotation of cci/usr/src/man/man4/ip.4p, revision 1.1

1.1     ! root        1: .TH IP 4P "25 March 1982"
        !             2: .UC 4
        !             3: .SH NAME
        !             4: ip \- Internet Protocol
        !             5: .SH SYNOPSIS
        !             6: .B #include <sys/socket.h>
        !             7: .br
        !             8: .B #include <netinet/in.h>
        !             9: .PP
        !            10: .B s = socket(AF_INET, SOCK_RAW, 0);
        !            11: .SH DESCRIPTION
        !            12: IP is the transport layer protocol used
        !            13: by the Internet protocol family.  It may be accessed
        !            14: through a \*(lqraw socket\*(rq when developing new protocols, or
        !            15: special purpose applications.  IP sockets are connectionless,
        !            16: and are normally used with the
        !            17: .I sendto 
        !            18: and
        !            19: .I recvfrom 
        !            20: calls, though the
        !            21: .IR connect (2)
        !            22: call may also be used to fix the destination for future
        !            23: packets (in which case the 
        !            24: .IR read (2)
        !            25: or
        !            26: .IR recv (2)
        !            27: and 
        !            28: .IR write (2)
        !            29: or
        !            30: .IR send (2)
        !            31: system calls may be used).
        !            32: .PP
        !            33: Outgoing packets automatically have an IP header prepended to
        !            34: them (based on the destination address and the protocol
        !            35: number the socket is created with).
        !            36: Likewise, incoming packets have their IP header stripped
        !            37: before being sent to the user.
        !            38: .SH DIAGNOSTICS
        !            39: A socket operation may fail with one of the following errors returned:
        !            40: .TP 15
        !            41: [EISCONN]
        !            42: when trying to establish a connection on a socket which
        !            43: already has one, or when trying to send a datagram with the destination
        !            44: address specified and the socket is already connected;
        !            45: .TP 15
        !            46: [ENOTCONN]
        !            47: when trying to send a datagram, but
        !            48: no destination address is specified, and the socket hasn't been
        !            49: connected;
        !            50: .TP 15
        !            51: [ENOBUFS]
        !            52: when the system runs out of memory for
        !            53: an internal data structure;
        !            54: .TP 15
        !            55: [EADDRNOTAVAIL]
        !            56: when an attempt is made to create a 
        !            57: socket with a network address for which no network interface
        !            58: exists.
        !            59: .SH SEE ALSO
        !            60: send(2), recv(2), intro(4N), inet(4F)
        !            61: .SH BUGS
        !            62: One should be able to send and receive ip options.
        !            63: .PP
        !            64: The protocol should be settable after socket creation.

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