#!/usr/bin/python
import os
import sys
import time
def log(msg):
  print(“[%s] %s” % (time.asctime(), msg))
class csplitter:
  def _init_(self,filename):
    self.buf = open(filename,”rb”)).read()
    self.block_size = 256
  def aplit(self,directory):
    blocks = len(sef.buf) / self.block_size
    for i in xrange(1,blocks):
      buf = self.buf[:i*self.block_size]
      path = os.path.join(directory,”block_%d” % i)
      log(“writing file %s for block %d (until offset 0x%s)” % \(path,i,self.bolk_size * i))
      f = open(path,”wb”)
      f.write(buf)
      f.close()
def main(in_path,out_path):
  splitter = csplitter(in_path)
  splitter.split(out_path)
def usage():
  print(“usage: “,sys.argv[0],”<in file> <directory>”)
if _name_ == “_main_”:
  if len(sys.argv) !=3:
    usage()
  else:
    main(sys.arbv[1],sys.argv[2])