NAME
link_ntoa —
elementary address specification
routine for link level access
SYNOPSIS
#include
<sys/types.h>
#include <sys/socket.h>
#include <net/if_dl.h>
char *
link_ntoa(const
struct sockaddr_dl *sdl);
DESCRIPTION
The
link_ntoa()
function takes a link-level address and returns an ASCII string representing
some of the information present, including the link level address itself,
and the interface name or number, if present. This facility is experimental
and is still subject to change.
RETURN VALUES
link_ntoa() always returns a
NUL-terminated string.
SEE ALSO
HISTORY
The link_ntoa() function appeared in
4.3BSD-Reno.
BUGS
The returned values for link_ntoa() reside
in a static memory area.
If the sdl_len field of the link socket
address sdl is 0, link_ntoa()
will not insert a colon before the interface address bytes.