mirror of https://github.com/mkerrisk/man-pages
105 lines
3.5 KiB
Groff
105 lines
3.5 KiB
Groff
.\" Copyright (c) 1983, 1991 The Regents of the University of California.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)getsockname.2 6.4 (Berkeley) 3/10/91
|
|
.\"
|
|
.\" Modified Sat Jul 24 16:30:29 1993 by Rik Faith <faith@cs.unc.edu>
|
|
.\" Modified Tue Oct 22 00:22:35 EDT 1996 by Eric S. Raymond <esr@thyrsus.com>
|
|
.\" Modified Sun Mar 28 21:26:46 1999 by Andries Brouwer <aeb@cwi.nl>
|
|
.\"
|
|
.TH GETSOCKNAME 2 1993-07-24 "BSD Man Page" "Linux Programmer's Manual"
|
|
.SH NAME
|
|
getsockname \- get socket name
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.B #include <sys/socket.h>
|
|
.sp
|
|
.BI "int getsockname(int " s ", struct sockaddr *" name ", socklen_t *" namelen );
|
|
.fi
|
|
.SH DESCRIPTION
|
|
.BR getsockname ()
|
|
returns the current
|
|
.I name
|
|
for the specified socket.
|
|
The
|
|
.I namelen
|
|
parameter should be initialized to indicate
|
|
the amount of space pointed to by
|
|
.IR name .
|
|
On return it contains the actual size of the name
|
|
returned (in bytes).
|
|
.SH "RETURN VALUE"
|
|
On success, zero is returned.
|
|
On error, \-1 is returned, and
|
|
.I errno
|
|
is set appropriately.
|
|
.SH ERRORS
|
|
.TP
|
|
.B EBADF
|
|
The argument
|
|
.I s
|
|
is not a valid descriptor.
|
|
.TP
|
|
.B EFAULT
|
|
The
|
|
.I name
|
|
parameter points to memory not in a valid part of the
|
|
process address space.
|
|
.TP
|
|
.B EINVAL
|
|
.I namelen
|
|
is invalid (e.g., is negative).
|
|
.TP
|
|
.B ENOBUFS
|
|
Insufficient resources were available in the system
|
|
to perform the operation.
|
|
.TP
|
|
.B ENOTSOCK
|
|
The argument
|
|
.I s
|
|
is a file, not a socket.
|
|
.SH "CONFORMING TO"
|
|
SVr4, 4.4BSD (the
|
|
.BR getsockname ()
|
|
function call appeared in 4.2BSD), POSIX.1-2001.
|
|
.\" SVr4 documents additional ENOMEM
|
|
.\" and ENOSR error codes.
|
|
.SH NOTE
|
|
The third argument of
|
|
.BR getsockname ()
|
|
is in reality an `int *' (and this is what 4.x BSD and libc4 and libc5 have).
|
|
Some POSIX confusion resulted in the present socklen_t, also used by glibc.
|
|
See also
|
|
.BR accept (2).
|
|
.SH "SEE ALSO"
|
|
.BR bind (2),
|
|
.BR socket (2)
|