r0 = openat(0xffffffffffffff9c, &(0x7f00000002c0)='./file1\x00', 0x101142, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', 0x0, 0x0)
sendfile(r0, r1, 0x0, 0x100000001)
ftruncate(r0, 0x100)