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Annotation of 43BSDReno/lib/libc/sys/connect.2, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"    @(#)connect.2   6.8 (Berkeley) 6/23/90
        !            19: .\"
        !            20: .TH CONNECT 2 "June 23, 1990"
        !            21: .UC 5
        !            22: .SH NAME
        !            23: connect \- initiate a connection on a socket
        !            24: .SH SYNOPSIS
        !            25: .nf
        !            26: .ft B
        !            27: #include <sys/types.h>
        !            28: #include <sys/socket.h>
        !            29: .PP
        !            30: .ft B
        !            31: connect(s, name, namelen)
        !            32: int s;
        !            33: struct sockaddr *name;
        !            34: int namelen;
        !            35: .fi
        !            36: .SH DESCRIPTION
        !            37: The parameter
        !            38: .I s
        !            39: is a socket.
        !            40: If it is of type SOCK_DGRAM,
        !            41: then this call specifies the peer with which the socket is to be associated;
        !            42: this address is that to which datagrams are to be sent,
        !            43: and the only address from which datagrams are to be received.
        !            44: If the socket is of type SOCK_STREAM,
        !            45: then this call attempts to make a connection to
        !            46: another socket.
        !            47: The other socket is specified by
        !            48: .I name,
        !            49: which is an address in the communications space of the socket.
        !            50: Each communications space interprets the
        !            51: .I name
        !            52: parameter in its own way.
        !            53: Generally, stream sockets may successfully
        !            54: .I connect
        !            55: only once; datagram sockets may use
        !            56: .I connect
        !            57: multiple times to change their association.
        !            58: Datagram sockets may dissolve the association
        !            59: by connecting to an invalid address, such as a null address.
        !            60: .SH "RETURN VALUE
        !            61: If the connection or binding succeeds, then 0 is returned.
        !            62: Otherwise a \-1 is returned, and a more specific error
        !            63: code is stored in \fIerrno\fP.
        !            64: .SH "ERRORS
        !            65: The call fails if:
        !            66: .TP 20
        !            67: [EBADF]
        !            68: .I S
        !            69: is not a valid descriptor.
        !            70: .TP 20
        !            71: [ENOTSOCK]
        !            72: .I S
        !            73: is a descriptor for a file, not a socket.
        !            74: .TP 20
        !            75: [EADDRNOTAVAIL]
        !            76: The specified address is not available on this machine.
        !            77: .TP 20
        !            78: [EAFNOSUPPORT]
        !            79: Addresses in the specified address family cannot be used with this socket.
        !            80: .TP 20
        !            81: [EISCONN]
        !            82: The socket is already connected.
        !            83: .TP 20
        !            84: [ETIMEDOUT]
        !            85: Connection establishment timed out without establishing a connection.
        !            86: .TP 20
        !            87: [ECONNREFUSED]
        !            88: The attempt to connect was forcefully rejected.
        !            89: .TP 20
        !            90: [ENETUNREACH]
        !            91: The network isn't reachable from this host.
        !            92: .TP 20
        !            93: [EADDRINUSE]
        !            94: The address is already in use.
        !            95: .TP 20
        !            96: [EFAULT]
        !            97: The \fIname\fP parameter specifies an area outside
        !            98: the process address space.
        !            99: .TP 20
        !           100: [EINPROGRESS]
        !           101: The socket is non-blocking 
        !           102: and the connection cannot
        !           103: be completed immediately.
        !           104: It is possible to
        !           105: .IR select (2)
        !           106: for completion by selecting the socket for writing.
        !           107: .TP 20
        !           108: [EALREADY]
        !           109: The socket is non-blocking
        !           110: and a previous connection attempt
        !           111: has not yet been completed.
        !           112: .PP
        !           113: The following errors are specific to connecting names in the UNIX domain.
        !           114: These errors may not apply in future versions of the UNIX IPC domain.
        !           115: .TP 15
        !           116: [ENOTDIR]
        !           117: A component of the path prefix is not a directory.
        !           118: .TP 15
        !           119: [EINVAL]
        !           120: The pathname contains a character with the high-order bit set.
        !           121: .TP 15
        !           122: [ENAMETOOLONG]
        !           123: A component of a pathname exceeded 255 characters,
        !           124: or an entire path name exceeded 1023 characters.
        !           125: .TP 15
        !           126: [ENOENT]
        !           127: The named socket does not exist.
        !           128: .TP 15
        !           129: [EACCES]
        !           130: Search permission is denied for a component of the path prefix.
        !           131: .TP 15
        !           132: [EACCES]
        !           133: Write access to the named socket is denied.
        !           134: .TP 15
        !           135: [ELOOP]
        !           136: Too many symbolic links were encountered in translating the pathname.
        !           137: .SH SEE ALSO
        !           138: accept(2), select(2), socket(2), getsockname(2)

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