Interface friendly names for AF_INET6
Thu Mar 10 14:30:00 GMT 2016
On 10/03/2016 14:49, Corinna Vinschen wrote:
> On Mar 10 14:32, Corinna Vinschen wrote:
>> Hi Marco,
>>> I am using getifaddrs to obtain all the AF_INET and AF_INET6
>>> interface, however I can only obtain the friendly name of the
>>> AF_INET using
>>> ioctl(sock, SIOCGIFFRNDLYNAM
>> getifaddrs should return the friendly name. Strruct ifall
>> has a member ifa_frndlyname, type struct ifreq_frndlyname,
>> which is filled for AF_INET and AF_INET6 interfaces.
> Oh, I see. The friendlyname is there, but struct ifaddrs is missing a
> pointer to it. That's the confusion you get when reusing the same
> function and structure type for multiple APIs.
> This could be easily rectified by utilizing the ifa_data pointer which
> is unused so far. It could point to a structure pointing to the other
> values collected but not yet exposed by getifaddrs, e.g.:
> struct ifall_data
> struct sockaddr ifa_hwaddr;
> int ifa_metric;
> int ifa_mtu;
> int ifa_ifindex;
> struct ifreq_frndlyname ifa_frndlyname;
> ifa_data = pointer to ifall_data;
> Would that help to get this into Cygwin 2.5.0?
I assume the ifall structures are not visible outside cygwin internal,
If so a ifall_data pointer should cover my current trial.
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