r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_IPV6_DSTOPTS(r0, 0x29, 0x3b, &(0x7f0000000040), 0x8)
r1 = socket$inet6_tcp(0xa, 0x1, 0x0)
dup3(r1, r0, 0x0)