GETSOCKNAME
Section: POSIX Programmer's Manual (3P)
Updated: 2013
Index
Return to Main Contents
PROLOG
This manual page is part of the POSIX Programmer's Manual.
The Linux implementation of this interface may differ (consult
the corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
NAME
getsockname
--- get the socket name
SYNOPSIS
#include <sys/socket.h>
int getsockname(int socket, struct sockaddr *restrict address,
socklen_t *restrict address_len);
DESCRIPTION
The
getsockname()
function shall retrieve the locally-bound name of the specified socket,
store this address in the
sockaddr
structure pointed to by the
address
argument, and store the length of this address in the object pointed
to by the
address_len
argument.
The
address_len
argument points to a
socklen_t
object which on input specifies the length of the supplied
sockaddr
structure, and on output specifies the length of the stored address.
If the actual length of the address is greater than the length of the
supplied
sockaddr
structure, the stored address shall be truncated.
If the socket has not been bound to a local name, the value stored in
the object pointed to by
address
is unspecified.
RETURN VALUE
Upon successful completion, 0 shall be returned, the
address
argument shall point to the address of the socket, and the
address_len
argument shall point to the length of the address. Otherwise, -1
shall be returned and
errno
set to indicate the error.
ERRORS
The
getsockname()
function shall fail if:
- EBADF
-
The
socket
argument is not a valid file descriptor.
- ENOTSOCK
-
The
socket
argument does not refer to a socket.
- EOPNOTSUPP
-
The operation is not supported for this socket's protocol.
The
getsockname()
function may fail if:
- EINVAL
-
The socket has been shut down.
- ENOBUFS
-
Insufficient resources were available in the system to complete the
function.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
accept(),
bind(),
getpeername(),
socket()
The Base Definitions volume of POSIX.1-2008,
<sys_socket.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group.
(This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online at
http://www.unix.org/online.html .
Any typographical or formatting errors that appear
in this page are most likely
to have been introduced during the conversion of the source files to
man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
Index
- PROLOG
-
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- EXAMPLES
-
- APPLICATION USAGE
-
- RATIONALE
-
- FUTURE DIRECTIONS
-
- SEE ALSO
-
- COPYRIGHT
-
|
|
- Running on 
-
:
: 