解压华为P6 UPDATE.APP
#!/usr/bin/env python # Version: 0.2.201308040830 # Author: linkscue # Function: unpack any hauwei honor2 Update.app # Thanks to McSpoon(zhaoxing-go@163.com) # 20130411: Modified for alignment to 4 byte boundary by jnjn@163.com # 20130804: Modified for python3 by atuo @ oschina.net import os import sys import struct from functools import reduce print("Usage: unpack $huawei_app_file") try: sys.argv[1] except IndexError: File="UPDATE.APP" else: File=sys.argv[1]; verify_code=0xa55aaa55 verify_bin=struct.pack("I",verify_code) print("I: unpack",File) f=open(File,'rb') cont=f.read() f.close() start=0 sub_file=1 search=verify_bin while True: index = cont.find(search, start) if index == -1: break if ((index) % 4 != 0 ): print("skipping a 55aa5aa5 at offset: 0x%08xn" % (index)) start = index + 1 else: packet_addr=cont[index+4:index+8] data_addr=cont[index+24:index+28] img_name=cont[index+60:index+76] packet_size_tuple=struct.unpack("I",packet_addr) data_size_tuple=struct.unpack("I",data_addr) packet_size=int(reduce(lambda rst, d: rst * 10 + d, packet_size_tuple)) data_size=int(reduce(lambda rst, d: rst * 10 + d, data_size_tuple)) temp=cont[index+packet_size:index+packet_size+data_size] filename=str(sub_file)+'_'+img_name.strip(b'x00').decode('ascii')+'.img' print( "%2d I: verify code found at: 0x%08x, size: %10d bytes, --> %-20s" % (sub_file,index,data_size,filename) ) f1=open(filename,'wb') f1.write(temp) f1.close() start = index + 1 sub_file += 1