import struct, sys, os

with open ("main.hal", 'rb') as hal:
    if not hal.read(4) == b'APUK':
        input("invalid file")
        sys.exit()
    os.makedirs("main")
    nument = struct.unpack('<L24x', hal.read(28))[0]
    entries = []
    for i in range(nument):
        entries.append(struct.unpack('<2L8x48s', hal.read(64)))
    for entry in entries:
        hal.seek(entry[1])
        content = hal.read(entry[0])
        name = entry[2].split(b'\00')[0].decode('ascii')
        with open ("main/"+name, 'wb') as output:
            output.write(content)