Admin: Created page with "

 #!/usr/bin/python # # Dynasty Warriors Online file extractor 0.1 by hcs  import io from sys import argv from struct import unpack  def unpack_file(infile, offset, name):   ..."

2011-05-24T17:06:06Z

Created page with "<pre> #!/usr/bin/python # # Dynasty Warriors Online file extractor 0.1 by hcs import io from sys import argv from struct import unpack def unpack_file(infile, offset, name): ..."

New page

<pre>
#!/usr/bin/python
#
# Dynasty Warriors Online file extractor 0.1 by hcs

import io
from sys import argv
from struct import unpack

def unpack_file(infile, offset, name):
infile.seek(offset)

# check the header
if infile.read(4) != "KOVS":
return 0

# read file size
file_size = unpack('<I',infile.read(4))[0]

# skip padding
# TODO: check that padding is all 0s?
infile.seek(offset+0x20)

# read the file
oggbuf = bytearray(file_size)
infile.readinto(oggbuf)

# deobfuscate
for i in range(0,0x100):
oggbuf[i] = oggbuf[i] ^ i

# write to the output
outfile = open(name,'wb')
outfile.write(oggbuf)

print name, file_size, "bytes"

return 1

###

if len(argv) != 2:
print "Decrypt Ogg files from Dynasty Warriors Online"
print "usage: dwo_xor.py input.bin"
exit(1)

# open input
infile_name = argv[1]
infile = open(infile_name,'rb')

# try to just dump file straightaway
if unpack_file(infile, 0, '%s.ogg' % infile_name):
print "ok"
exit(0)

# read known parts of header
infile.seek(0xC)
header_size, subfile_count = unpack('<IxxxxI',infile.read(12))

if header_size != 0x18 + 4*subfile_count:
print "header consistency check failed"
exit(1)

file_offsets = unpack('<'+'I'*subfile_count,infile.read(4*subfile_count))
for offset in file_offsets:
if not unpack_file(infile, offset, \
'%s_%08x.ogg' % \
(infile_name, offset)):
print "unpack failed"
exit(1)

print "ok!"
</pre>

Dynasty Warriors Online file extractor - Revision history

Admin: Created page with "
#!/usr/bin/python # # Dynasty Warriors Online file extractor 0.1 by hcs import io from sys import argv from struct import unpack def unpack_file(infile, offset, name): ..."