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started bmg.py
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megazig
parent
6ee2a275bb
commit
68f7cf21cf
182
bmg.py
Executable file
182
bmg.py
Executable file
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#!/usr/bin/python
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import sys, re, struct
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from Struct import Struct
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def nullterm(str_plus):
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z = str_plus.find('\x00\x00')
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if z != -1:
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return str_plus[:z]
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else:
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return str_plus
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class BMG(object):
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class BMG_DAT1(Struct):
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__endian__ = Struct.BE
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def __format__(self):
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self.magic = Struct.string(4)
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self.length = Struct.uint32
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def __str__(self):
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return_string = "Magic: %s\n" % self.magic
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return_string += "Length: %08x\n " % self.length
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return return_string
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class BMG_INF1(Struct):
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__endian__ = Struct.BE
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def __format__(self):
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self.magic = Struct.string(4)
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self.length = Struct.uint32
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self.count = Struct.uint16
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self.unknown01 = Struct.uint16
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def __str__(self):
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return_string = "Magic: %s\n" % self.magic
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return_string += "Length: %08x\n " % self.length
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return_string += "Count: %04x\n" % self.count
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return_string += "Unknown: %04x\n" % self.unknown01
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return return_string
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class BMG_Header(Struct):
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__endian__ = Struct.BE
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def __format__(self):
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self.magic = Struct.string(4)
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self.magic2 = Struct.string(4)
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self.length = Struct.uint32
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self.chunk_cnt = Struct.uint32
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self.unknown01 = Struct.uint8
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self.unknown02 = Struct.uint8
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self.unknown03 = Struct.uint16
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self.unknown04 = Struct.uint32
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self.unknown05 = Struct.uint32
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self.unknown06 = Struct.uint32
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def __str__(self):
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return_string = "Magic: %s\n" % self.magic
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return_string += "Magic: %s\n" % self.magic2
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return_string += "Length: %08x\n" % self.length
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return_string += "Chunk Count: %08x\n" % self.chunk_cnt
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return_string += "Unknown01: %02x\n" % self.unknown01
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return_string += "Unknown02: %02x\n" % self.unknown02
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return_string += "Unknown03: %04x\n" % self.unknown03
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return_string += "Unknown04: %08x\n" % self.unknown04
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return_string += "Unknown05: %08x\n" % self.unknown05
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return_string += "Unknown06: %08x\n" % self.unknown06
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return return_string
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def __init__(self, data):
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self.data = []
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if data != None:
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self.Unpack(data)
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def Unpack(self, data):
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pos = 0
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header = self.BMG_Header()
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header.unpack(data[pos:pos+len(header)])
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pos += len(header)
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print header
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print "\n%08x\n" % pos
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info = self.BMG_INF1()
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info.unpack(data[pos:pos+len(info)])
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pos += len(info)
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print info
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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print "\n%08x\n" % pos
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offset_list = []
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for x in xrange(info.count):
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offset = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Offset: %08x" % offset
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offset_list.append(offset)
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while pos % 0x10:
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padding = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Padding: %08x" % padding
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print "\n%08x\n" % pos
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dat1 = self.BMG_DAT1()
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dat1.unpack(data[pos:pos+len(dat1)])
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pos += len(dat1)
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print dat1
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print "\n%08x\n" % pos
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temp = pos
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unknown = Struct.uint16(data[pos:pos+2], endian='>')
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pos += 2
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print "Unknown: %04x" % unknown
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for x in xrange(info.count):
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pos = temp + offset_list[x]
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string = nullterm(data[pos:])
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string = unicode(string, 'utf_16_be')
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print "String: %s" % string
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#''' TEST DATA
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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unknown = Struct.uint32(data[pos:pos+4], endian='>')
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pos += 4
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print "Unknown: %08x" % unknown
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#END TEST DATA '''
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def main():
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if len(sys.argv) == 1:
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print 'Usage: python bmg.py'
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sys.exit(1)
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f = open(sys.argv[1], 'rb')
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if f:
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bmg_buffer = f.read()
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f.close()
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else:
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print 'Could not open file for reading'
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sys.exit(1)
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bmg = BMG(bmg_buffer)
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if __name__ == "__main__":
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main()
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