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Check mach-o is 32/64 bit
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# -*- coding: utf-8 -*- | |
import os,sys | |
def checkMachO(path): | |
# print path | |
is_path_exists = os.path.exists(path) | |
if is_path_exists: | |
with open(path, 'rb') as f: | |
headMagic = "" | |
for i in range(0, 4): | |
s = f.read(1) | |
byte = ord(s) | |
headMagic = headMagic + hex(byte)[2:] | |
# print hex(byte) | |
pass | |
# fat:0xbebafeca 32: 0xfeedface 64: 0xfeedfacf | |
# print headMagic | |
if headMagic == "cafebabe": | |
# Is Fat Mach-o | |
# Jump 3 | |
f.read(3) | |
t = f.read(1) | |
archiveCount = ord(t) | |
# Jump 8 | |
f.read(8) | |
# print archiveCount | |
arrOffsets = [] | |
offsetDelta = 0 | |
# for i in range(0, archiveCount): | |
while 1: | |
offset = 0 | |
for j in range(0, 4): | |
r = f.read(1) | |
# print ord(r) | |
offset = offset + ord(r) * (256 ** (3-j)) | |
if offset == 0: | |
offsetDelta = 4 | |
break; | |
arrOffsets.append(offset) | |
# print offset | |
# Jump 16 | |
f.read(16) | |
pass | |
# currentOffset = 0x10 + archiveCount * 20 | |
currentOffset = 0x10 + len(arrOffsets) * 20 + offsetDelta | |
msg = "" | |
is_32bit = 0 | |
is_64bit = 0 | |
# print arrOffsets | |
for of in arrOffsets: | |
delta = of - currentOffset | |
f.read(delta) | |
magic = "" | |
for i in range(0, 4): | |
s = f.read(1) | |
byte = ord(s) | |
magic = magic + hex(byte)[2:] | |
pass | |
# ap = "" | |
# if len(msg) > 0: | |
# ap = "&" | |
# pass | |
# print magic | |
if is_64bit == 0 and magic == "cffaedfe": | |
is_64bit = 1 | |
# msg = msg + ap + "arm64" | |
# print "arm64" | |
else: | |
if is_32bit == 0 and magic == "cefaedfe": | |
is_32bit = 1 | |
# msg = msg + ap + "arm32" | |
# print "arm32" | |
currentOffset = of + 4 | |
if is_32bit == 1 and is_64bit == 1: | |
print "arm32&arm64" | |
else: | |
if is_32bit == 1: | |
print "arm32" | |
else: | |
if is_64bit == 1: | |
print "arm64" | |
pass | |
pass | |
# print msg | |
else: | |
if headMagic == "cffaedfe": | |
print "arm64" | |
pass | |
else: | |
if headMagic == "cefaedfe": | |
print "arm32" | |
pass | |
pass | |
pass | |
pass | |
if __name__ == '__main__': | |
checkMachO(sys.argv[1]) |
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