socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
pipe(&(0x7f0000000580)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
splice(r0, 0x0, r1, 0x0, 0x3, 0x0)