r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
shutdown(r0, 0x1)
r1 = dup2(r0, r0)
ioctl$int_in(r1, 0x5452, &(0x7f00000000c0)=0x7)
setsockopt$inet6_tcp_int(r1, 0x6, 0x19, &(0x7f0000000080), 0x4)