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1 | import os | |
2 | import struct | |
3 | ||
4 | os.chdir( os.path.dirname( __file__ ) ) | |
5 | ||
6 | fp = r"add01dat.bin" | |
7 | fs = os.path.getsize(fp) | |
8 | ||
9 | with open(fp, "rb") as bin: | |
10 | offsets = [ ] | |
11 | while bin.tell() < fs: | |
12 | data = bin.read(4) | |
13 | offset = struct.unpack(">I", data)[0] | |
14 | offsets.append(offset) | |
15 | if not offset: break | |
16 | ||
17 | numfiles = len(offsets) | |
18 | for i in range(numfiles): | |
19 | offset = offsets[i] | |
20 | if i + 1 < numfiles: | |
21 | size = offsets[i+1] - offset | |
22 | else: | |
23 | size = fs - offset | |
24 | with open(r"add01dat_%02d.bin" % i, "wb") as fout: | |
25 | bin.seek(offset) | |
26 | fout.write( bin.read(size) ) |