Re: Patch to implement SIOCGIFINDEX

[Ty Sarna <ty%sarna.org@localhost>]

On Apr 2, 2013, at 5:14 PM, Ty Sarna <ty%sarna.org@localhost> wrote:

> It's really the most useful thing for this use (sockaddr_can), because it's
> stable across the attachment life of an interface.

As are interface indexes, for that matter. But interface names are more
likely to be the same across multiple attachment lifetimes. If someone
yanks and reattaches interfaces between the time you specify an ifname
and the time the bind happens, at least you'll get a failure or be bound
to the same *kind* of interface, instead of something else.