HW address w/o connection in iphlpapi
juan_lang at yahoo.com
Wed Jan 18 01:07:13 CST 2006
> Dang. It doesn't work for down devices.
> When I run strace on a program
> that uses getifaddrs, the socket is opened with IPROTO_IP:
> socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 14
> ioctl(14, 0x8912, 0x2084d3a8) = 0
That's SIOCGIFCONF. So it looks like getifaddrs isn't doing anything
different than SIOCGIFCONF, at least on Linux.
> I can't figure out what these ioctls are either...?
Take a look at <linux/sockios.h>
> I'll keep digging, but if you have any clues I would love to hear them!
ifconfig -a reports down interfaces. It may just process /proc/net/dev.
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