r0 = socket$unix(0x1, 0x1, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x47e2, 0x0)
ftruncate(r1, 0x1000003)
sendfile(r0, r1, 0x0, 0x100000001)