r0 = socket$inet6_udp(0xa, 0x2, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$SO_TIMESTAMP(r1, 0x1, 0x23, &(0x7f0000000080)=0x4, 0x4)
dup2(r0, r1)