r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', 0x882c2, 0x0)
r1 = openat$vcsu(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
dup2(r1, r0)
lseek(r0, 0x0, 0x0)