GETSOCKNAME(2)

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)

COLOPHON
This page is part of release 2.79 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.