r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_IPV6_RTHDRDSTOPTS(r1, 0x29, 0x37, &(0x7f0000000100), 0x8)
dup2(r0, r1)