blob: d40a12d683a4f86d81201cd820e8c243532b9ea9 (
plain)
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import struct
import sys
out = open(sys.argv[2], 'w')
sum = 0x1121
len = 0
with open(sys.argv[1], 'rb') as f:
while True:
byte = f.read(1)
if not byte:
break
sum ^= ord(byte)
for i in range(8):
if(sum & 1):
sum = (sum >> 1) ^ 0x8408
else:
sum >>= 1
len += 1
sum = ~sum & 0xFFFF
f.closed
out.write(struct.pack('<I', sum))
out.write(struct.pack('<I', 0x0200001E))
out.write(struct.pack('<I', 0x0200001E + len))
with open(sys.argv[1], 'rb') as f:
out.write(f.read())
f.closed
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