I trying to get IPv6 addresses in my linux OS like following:
sd = Socket_m(AF_INET6_m, SOCK_DGRAM_m, 0);
ifc.ifc_buf = buffer_p;
ifc.ifc_len = buffSize;
Ioctl_m(sd, SIOCGIFCONF, &ifc);
It works succesfully if any IPv4 address are configured for interface, but if interface has only one IPv6 address it is not returned by ioctl.
For example, I unable to get IPv6 address of the followith interface because only IPv6 address is configured:
br1 Link encap:Ethernet HWaddr 00:10:18:2D:BB:34
inet6 addr: fe80::210:18ff:fe2d:be54/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:194244850 errors:0 dropped:0 overruns:0 frame:0
TX packets:72005 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:12331900995 (11760.6 Mb) TX bytes:6192406 (5.9 Mb)