Re: Getting MAC address?

From: Ivan Voras (ivoras_at_fer.hr)
Date: 06/26/04

  • Next message: Joe Schmoe: "Re: A few technical items on UFS2 and snapshots..." 
    Date: Sat, 26 Jun 2004 11:15:45 +0200
To: Dmitry Morozovsky <marck@rinet.ru>

    Dmitry Morozovsky wrote:
    > On Sat, 26 Jun 2004, Ivan Voras wrote:
    >
    > IV> How to get the MAC address for an (ethernet) interface? The linux code
    > IV> does this:
    > IV> retval = ioctl(thisint->sockInt, SIOCGIFHWADDR, &ifr);
    > IV>
    > IV> After some searching, I found SIOCSIFLLADDR ioctl, but it appears there
    > IV> isn't a "GET" counterpart.
    > IV>
    > IV> (I've got interface name & index available...)
    >
    > Take a look at ifconfig(8) source.
    >
    > getifaddrs(3), case when sa_family == AF_LINK

    I was looking at it and came across getifaddrs(). This function does not
    depend on a open socket (yes, mine is AF_LINK, sockaddr_dl), and
    apparently returns a list of all interfaces. Is there really no other
    way than to traverse this list? 

    -- 
What part of "Ph'nglui mglw'nath Cthulhu R'lyeh wgah'nagl fhtagn" don't
you understand?
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