Return to connect.2 CVS log

Up to [CSRG BSD Unix] / 43BSDTahoe / man / man2

Annotation of 43BSDTahoe/man/man2/connect.2, revision 1.1.1.1

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)

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.