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Command: link_ntoa | Section: 3 | Source: OpenBSD | File: link_ntoa.3
LINK_NTOA(3) FreeBSD Library Functions Manual LINK_NTOA(3)
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
ifconfig(8)
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.
FreeBSD 14.1-RELEASE-p8 September 10, 2015 FreeBSD 14.1-RELEASE-p8