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Re: Patch to implement SIOCGIFINDEX

On Apr 22, 2013, at 9:47 AM, Christos Zoulas <> 

> In article <>,
> Masaru OKI  <> wrote:
>> FreeBSD already has SIOCGIFINDEX, and if_nametoindex(3) uses it.
>> it is useful, i think.
>> (2013/04/02 8:13), Ty Sarna wrote:
>>> The following short patch implements SIOCGIFINDEX as found on Linux
>>> (and maybe elsewhere), which translates an interface name to its index.
> Someone else asked for it too, so I guess it is kind of popular...

Might want a SIOCGIFNAME too since you could use it to get an interface's
name by its index (you can open an interface by if<index> where is the
decimal index; like if1, if29, etc.).

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