Created
July 26, 2015 18:20
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#!/usr/bin/env python | |
''' | |
Tool to read game media type header information from the original | |
XBOX's xbe executables. | |
In retrospect, it would have been much less fiddly to write this in C/C++ | |
Info taken from here: | |
http://www.caustik.com/cxbx/download/xbe.htm | |
''' | |
import argparse | |
import struct | |
import codecs | |
import sys | |
import os | |
CERT_LOCATION = 0x0118 | |
BASE_LOCATION = 0x0104 | |
CERT_TITLE_LOCATION = 0x000C | |
CERT_TITLE_SIZE = 0x0050 | |
CERT_MEDIA_LOCATION = 0x009c | |
CERT_MEDIA_FLAGS = { | |
'hd': 0x00000001, | |
'dvd_x2': 0x00000002, | |
'dvd_cd': 0x00000004, | |
'cd': 0x00000008, | |
'dvd_5_ro': 0x00000010, | |
'dvd_9_ro': 0x00000020, | |
'dvd_5_rw': 0x00000040, | |
'dvd_9_rw': 0x00000080, | |
'dongle': 0x00000100, | |
'media_board': 0x00000200, | |
'hd_insecure': 0x40000000, | |
'insecure': 0x80000000, | |
} | |
def main(): | |
sys.stdout = codecs.getwriter('utf8')(sys.stdout) | |
parser = argparse.ArgumentParser("XBOX file info dumper") | |
parser.add_argument('filename', metavar='file', | |
help='Executable to read.', default='default.xbe') | |
args = parser.parse_args() | |
if not os.path.isfile(args.filename): | |
print("Couldn't find '{0}'.".format(args.filename)) | |
exit(1) | |
with file(args.filename, 'rb') as f: | |
header_read(f) | |
def header_read(f): | |
f.seek(CERT_LOCATION) | |
media_offset, = struct.unpack('i', f.read(4)) | |
f.seek(BASE_LOCATION) | |
base_offset, = struct.unpack('i', f.read(4)) | |
cert_offset = media_offset - base_offset | |
title = title_read(f, cert_offset) | |
o = u"Reading header for '{0}':".format(title) | |
print(o) | |
media_types = media_read(f, cert_offset) | |
print(" Media Flags: {0}".format(', '.join(media_types))) | |
def title_read(f, cert_offset): | |
f.seek(cert_offset + CERT_TITLE_LOCATION) | |
data = f.read(CERT_TITLE_SIZE) | |
text = "unknown" | |
try: | |
text = data.decode("UTF-16LE").rstrip('\0') | |
except: | |
pass | |
return text | |
def media_read(f, cert_offset): | |
f.seek(cert_offset + CERT_MEDIA_LOCATION) | |
data = bytearray(f.read(4)) | |
field = struct.unpack('i', f.read(4))[0] | |
items = [] | |
for k, v in CERT_MEDIA_FLAGS.items(): | |
if (v & field != 0): | |
items.append(k) | |
return items | |
if __name__ == "__main__": | |
main() |
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