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?
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