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Annotation of 43BSDTahoe/man/man2/connect.2, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)connect.2   6.6 (Berkeley) 5/22/86
        !             6: .\"
        !             7: .TH CONNECT 2 "May 22, 1986"
        !             8: .UC 5
        !             9: .SH NAME
        !            10: connect \- initiate a connection on a socket
        !            11: .SH SYNOPSIS
        !            12: .nf
        !            13: .ft B
        !            14: #include <sys/types.h>
        !            15: #include <sys/socket.h>
        !            16: .PP
        !            17: .ft B
        !            18: connect(s, name, namelen)
        !            19: int s;
        !            20: struct sockaddr *name;
        !            21: int namelen;
        !            22: .fi
        !            23: .SH DESCRIPTION
        !            24: The parameter
        !            25: .I s
        !            26: is a socket.
        !            27: If it is of type SOCK_DGRAM,
        !            28: then this call specifies the peer with which the socket is to be associated;
        !            29: this address is that to which datagrams are to be sent,
        !            30: and the only address from which datagrams are to be received.
        !            31: If the socket is of type SOCK_STREAM,
        !            32: then this call attempts to make a connection to
        !            33: another socket.
        !            34: The other socket is specified by
        !            35: .I name,
        !            36: which is an address in the communications space of the socket.
        !            37: Each communications space interprets the
        !            38: .I name
        !            39: parameter in its own way.
        !            40: Generally, stream sockets may successfully
        !            41: .I connect
        !            42: only once; datagram sockets may use
        !            43: .I connect
        !            44: multiple times to change their association.
        !            45: Datagram sockets may dissolve the association
        !            46: by connecting to an invalid address, such as a null address.
        !            47: .SH "RETURN VALUE
        !            48: If the connection or binding succeeds, then 0 is returned.
        !            49: Otherwise a \-1 is returned, and a more specific error
        !            50: code is stored in \fIerrno\fP.
        !            51: .SH "ERRORS
        !            52: The call fails if:
        !            53: .TP 20
        !            54: [EBADF]
        !            55: .I S
        !            56: is not a valid descriptor.
        !            57: .TP 20
        !            58: [ENOTSOCK]
        !            59: .I S
        !            60: is a descriptor for a file, not a socket.
        !            61: .TP 20
        !            62: [EADDRNOTAVAIL]
        !            63: The specified address is not available on this machine.
        !            64: .TP 20
        !            65: [EAFNOSUPPORT]
        !            66: Addresses in the specified address family cannot be used with this socket.
        !            67: .TP 20
        !            68: [EISCONN]
        !            69: The socket is already connected.
        !            70: .TP 20
        !            71: [ETIMEDOUT]
        !            72: Connection establishment timed out without establishing a connection.
        !            73: .TP 20
        !            74: [ECONNREFUSED]
        !            75: The attempt to connect was forcefully rejected.
        !            76: .TP 20
        !            77: [ENETUNREACH]
        !            78: The network isn't reachable from this host.
        !            79: .TP 20
        !            80: [EADDRINUSE]
        !            81: The address is already in use.
        !            82: .TP 20
        !            83: [EFAULT]
        !            84: The \fIname\fP parameter specifies an area outside
        !            85: the process address space.
        !            86: .TP 20
        !            87: [EINPROGRESS]
        !            88: The socket is non-blocking 
        !            89: and the connection cannot
        !            90: be completed immediately.
        !            91: It is possible to
        !            92: .IR select (2)
        !            93: for completion by selecting the socket for writing.
        !            94: .TP 20
        !            95: [EALREADY]
        !            96: The socket is non-blocking
        !            97: and a previous connection attempt
        !            98: has not yet been completed.
        !            99: .PP
        !           100: The following errors are specific to connecting names in the UNIX domain.
        !           101: These errors may not apply in future versions of the UNIX IPC domain.
        !           102: .TP 15
        !           103: [ENOTDIR]
        !           104: A component of the path prefix is not a directory.
        !           105: .TP 15
        !           106: [EINVAL]
        !           107: The pathname contains a character with the high-order bit set.
        !           108: .TP 15
        !           109: [ENAMETOOLONG]
        !           110: A component of a pathname exceeded 255 characters,
        !           111: or an entire path name exceeded 1023 characters.
        !           112: .TP 15
        !           113: [ENOENT]
        !           114: The named socket does not exist.
        !           115: .TP 15
        !           116: [EACCES]
        !           117: Search permission is denied for a component of the path prefix.
        !           118: .TP 15
        !           119: [EACCES]
        !           120: Write access to the named socket is denied.
        !           121: .TP 15
        !           122: [ELOOP]
        !           123: Too many symbolic links were encountered in translating the pathname.
        !           124: .SH SEE ALSO
        !           125: accept(2), select(2), socket(2), getsockname(2)

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