socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) setsockopt$sock_int(r2, 0x1, 0x10, &(0x7f0000000200)=0xbe7, 0x4) writev(r0, &(0x7f00000004c0)=[{&(0x7f0000000000)='~', 0x1}], 0x1)