Name
getsockname — get socket name
Synopsis
#include <sys/socket.h>
int
getsockname( |
int |
s, |
|
struct sockaddr
* |
name, |
|
socklen_t * |
namelen) ; |
DESCRIPTION
getsockname
() returns the
current name
for the
specified socket. The namelen
parameter should be
initialized to indicate the amount of space pointed to by
name
. On return it
contains the actual size of the name returned (in bytes).
RETURN VALUE
On success, zero is returned. On error, −1 is
returned, and errno
is set
appropriately.
ERRORS
- EBADF
-
The argument s
is not a valid
descriptor.
- EFAULT
-
The name
parameter points to memory not in a valid part of the
process address space.
- EINVAL
-
namelen
is
invalid (e.g., is negative).
- ENOBUFS
-
Insufficient resources were available in the system
to perform the operation.
- ENOTSOCK
-
The argument s
is a file, not a
socket.
CONFORMING TO
SVr4, 4.4BSD (the getsockname
() function call appeared in
4.2BSD), POSIX.1-2001.
NOTES
The third argument of 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 accept(2).
SEE ALSO
bind(2), socket(2)
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:
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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
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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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>
|