ntfs-read.py 文件源码

def do_cat(self, line, command = sys.stdout.write):
        pathName = string.replace(line,'/','\\')
        pathName = ntpath.normpath(ntpath.join(self.pwd,pathName))
        res = self.findPathName(pathName)
        if res is None:
            logging.error("Not found!")
            return
        if res.isDirectory() > 0:
            logging.error("It's a directory!")
            return
        if res.isCompressed() or res.isEncrypted() or res.isSparse():
            logging.error('Cannot handle compressed/encrypted/sparse files! :(')
            return
        stream = res.getStream(None)
        chunks = 4096*10
        written = 0
        for i in range(stream.getDataSize()/chunks):
            buf = stream.read(i*chunks, chunks)
            written += len(buf)
            command(buf)
        if stream.getDataSize() % chunks:
            buf = stream.read(written, stream.getDataSize() % chunks)
            command(buf)
        logging.info("%d bytes read" % stream.getDataSize())