r0 = socket$inet6_udp(0xa, 0x2, 0x0) setsockopt$inet6_opts(r0, 0x29, 0x3b, &(0x7f00000000c0)=ANY=[], 0x18) getsockopt$inet6_opts(r0, 0x29, 0x37, 0x0, &(0x7f0000000000))