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GETSOCKNAME

Section: Linux Programmer's Manual (2)
Updated: 1993-07-24
Index Return to Main Contents
 

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)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
CONFORMING TO
NOTES
SEE ALSO




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