fp_resign.py

gistfile1.txt

# -*- coding: utf-8 -*-

"""
"""

import sys, struct

class crc32r:
    def __init__(self, p0 = 0xEDB88320):
        p0 |= 0x80000000
        u0 = [0x0] * 0x100
        i = 0x1
        while i & 0xFF:
            t0 = i
            for j in range(0x8):
                b = bool(t0 & 0x1)
                t0 >>= 0x1
                if b : t0 ^= p0
            u0[i] = t0
            i += 0x1
        self.u0 = tuple(u0)
        u0.clear()

    def calc0(self, s, inXOR = 0xFFFFFFFF, outXOR = 0xFFFFFFFF):
        u = self.u0
        t = inXOR
        for k in s : t = (t >> 0x8) ^ u[(k ^ t) & 0xFF]
        return t ^ outXOR

def sign(fName):
    crc32 = crc32r()
    with open(fName, "rb+") as f:
        f.seek(0xE0, 0x0)
        t = crc32.calc0(f.read(0xD4), 0x0)
        f.seek(0xDC, 0x0)
        f.write(struct.pack("<I", t))
        
if __name__ == "__main__":
    if sys.stdin.isatty():
        argv = sys.argv
        if 0x2 <= len(argv) <= 0x3:
            sign(argv[-0x1])
        else:
            print("Usage : fp_resign.py file")
    else:
        pass

no go?

Traceback (most recent call last):
File "tes.py", line 37, in
sign(argv[-0x1])
File "tes.py", line 26, in sign
crc32 = crc32r()
File "tes.py", line 17, in init
u0.clear()
AttributeError: 'list' object has no attribute 'clear'

n/m python3 not python2 :(