r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
connect$inet6(r0, &(0x7f0000000080)={0xa, 0x0, 0x0, @loopback}, 0x1c)
setsockopt$sock_int(r0, 0x1, 0x3c, &(0x7f0000000000)=0x1, 0x4)
sendmsg$inet6(r0, &(0x7f0000000400)={0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f0000000500)='9', 0x1}], 0x1}, 0x24000855)