r0 = creat(&(0x7f0000000040)='./file1\x00', 0x0)
pwrite64(r0, &(0x7f0000000140)='3', 0x1, 0x10001)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', 0x105142, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0, 0x0)
sendfile(r1, r2, 0x0, 0x20d315)