r0 = socket$unix(0x1, 0x5, 0x0)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
write(r1, 0x0, 0x0)
dup3(r0, r2, 0x0)
writev(r1, &(0x7f0000000900)=[{&(0x7f0000000200)='E', 0x1}], 0x1)