r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000100)={0xa, 0x0, 0x0, @mcast2, 0x2}, 0x1c)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
r2 = dup2(r0, r1)
getsockname$packet(r2, 0x0, &(0x7f00000001c0))