def match_options(self, options):
        """This method takes a set of options, and tries to match them with
        its own. It can accept some changes in those options from the server as
        part of a negotiation. Changed or unchanged, it will return a dict of
        the options so that the session can update itself to the negotiated
        options."""
        for name in self.options:
            if options.has_key(name):
                if name == 'blksize':
                    # We can accept anything between the min and max values.
                    size = int(self.options[name])
                    if size >= MIN_BLKSIZE and size <= MAX_BLKSIZE:
                        log.debug("negotiated blksize of %d bytes", size)
                    else:
                        raise TftpException, "blksize %s option outside allowed range" % size
                elif name == 'tsize':
                    size = int(self.options[name])
                    if size >= 0:
                        raise TftpException, "Negative file sizes not supported"
                else:
                    raise TftpException, "Unsupported option: %s" % name
        return True
dataset/ETHPy150Open msoulier/tftpy/tftpy/TftpPacketTypes.py/TftpPacketOACK.match_options/operator `<` -> `>=`