Interface friendly names for AF_INET6

Marco Atzeri
Thu Mar 10 11:10:00 GMT 2016

I am trying to put a small interface info tool
to debug some hangs reported on openmpi.

The aim is to produce something like

{9F4F7FD2-5E44-4796-ABE0-0785CF76C11E} AF_INET6 (23)
         flags: up running multicast
         address: <fe80::9953:b1f5:a643:4497%15>
         Local Area Connection
{9F4F7FD2-5E44-4796-ABE0-0785CF76C11E} AF_INET (2)
         flags: up broadcast running multicast
         address: <>
         Local Area Connection

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

On my pc I see 20 interface, 10 for each type, however
only 7 couples shares the same "ifa_name" the others
3+3 shows different ones.

Any alternative to ioctl(sock, SIOCGIFFRNDLYNAM
  for AF_INET6 ?


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