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From: Marco Atzeri <marco.atzeri@gmail.com>
Subject: Interface friendly names for AF_INET6
To: "cygwin@cygwin.com" <cygwin@cygwin.com>
Message-ID: <56E15638.5080906@gmail.com>
Date: Thu, 10 Mar 2016 12:10:48 +0100
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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: <172.21.188.188>
         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
   ioctl(sock, SIOCGIFFRNDLYNAM

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 ?

Regards
Marco

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