Created
July 6, 2024 20:33
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Python script to determine the architecture type of a DLL on Windows
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| #!/usr/bin/env python | |
| import os | |
| import struct | |
| import sys | |
| # adapted from: http://stackoverflow.com/a/495305/1338797 and | |
| # https://github.com/tgandor/meats/blob/master/missing/arch_of.py | |
| def arch_of(dll_file): | |
| with open(dll_file, 'rb') as f: | |
| doshdr = f.read(64) | |
| magic, padding, offset = struct.unpack('2s58si', doshdr) | |
| # print magic, offset | |
| if magic != b'MZ': | |
| return None | |
| f.seek(offset, os.SEEK_SET) | |
| pehdr = f.read(6) | |
| # careful! H == unsigned short, x64 is negative with signed | |
| magic, padding, machine = struct.unpack('2s2sH', pehdr) | |
| # print(magic, hex(machine)) | |
| if magic != b'PE': | |
| return None | |
| if machine == 0x014c: | |
| return 'i386' | |
| if machine == 0x0200: | |
| return 'IA64' | |
| if machine == 0x8664: | |
| return 'x64' | |
| if machine == 0xaa64: | |
| return 'arm64' | |
| return 'unknown' | |
| print(arch_of(sys.argv[1])) |
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