r0 = socket$inet_tcp(0x2, 0x1, 0x0)
sendmsg(r0, &(0x7f0000000240)={&(0x7f0000000000)=@l2={0x1f, 0x0, @fixed}, 0x80, &(0x7f0000000200)=[{0x0}, {0x0}], 0x2}, 0x20000800)