def lzvn_decompress(compressed_stream, compressed_size, uncompressed_size): #TODO: Move to a class!
'''Adds Prefix and Postfix bytes as required by decompressor,
then decompresses and returns uncompressed bytes buffer
'''
header = b'bvxn' + struct.pack('<I', uncompressed_size) + struct.pack('<I', compressed_size)
footer = b'bvx$'
return lzfse.decompress(header + compressed_stream + footer)
print(' iv: ', restruct.format_value(kb['iv'], str))
print(' key:', restruct.format_value(kb['key'], str))
print()
if p['compression']:
print(' compression:')
print(' algo:', p['compression']['algorithm'])
print(' size:', p['compression']['original_size'])
algo = p['compression']['algorithm']
else:
algo = None
print()
if args.outfile:
if algo == 'lzfse':
import lzfse
data = lzfse.decompress(p['data'])
elif algo:
raise ValueError('unknown algorithm: {}'.format(algo))
else:
data = p['data']
args.outfile.write(data)
if manifest:
m = manifest.native
if args.raw:
print(restruct.format_value(m, str))
else:
print('manifest:')
for p in m['contents']:
print(' body:')
if p['type'] == 'MANB':
for c in p['categories']: