Class IP

thirdparty/IPy/IPy.py:789–1013

Class for handling IP addresses and networks.

class IP(IPint):
    """Class for handling IP addresses and networks."""

    def net(self):
        """Return the base (first) address of a network as an IP object.

        The same as IP[0].

        >>> IP('10.0.0.0/8').net()
        IP('10.0.0.0')
        """
        return IP(IPint.net(self), ipversion=self._ipversion)

    def broadcast(self):
        """Return the broadcast (last) address of a network as an IP object.

        The same as IP[-1].

        >>> IP('10.0.0.0/8').broadcast()
        IP('10.255.255.255')
        """
        return IP(IPint.broadcast(self))

    def netmask(self):
        """Return netmask as an IP object.

        >>> IP('10.0.0.0/8').netmask()
        IP('255.0.0.0')
         """
        return IP(IPint.netmask(self), ipversion=self._ipversion)

    def _getIPv4Map(self):
        if self._ipversion != 6:
            return None
        if (self.ip >> 32) != 0xffff:
            return None
        ipv4 = self.ip & MAX_IPV4_ADDRESS
        if self._prefixlen != 128:
            ipv4 = '%s/%s' % (ipv4, 32-(128-self._prefixlen))
        return IP(ipv4, ipversion=4)

    def reverseNames(self):
        """Return a list with values forming the reverse lookup.

        >>> IP('213.221.113.87/32').reverseNames()
        ['87.113.221.213.in-addr.arpa.']
        >>> IP('213.221.112.224/30').reverseNames()
        ['224.112.221.213.in-addr.arpa.', '225.112.221.213.in-addr.arpa.', '226.112.221.213.in-addr.arpa.', '227.112.221.213.in-addr.arpa.']
        >>> IP('127.0.0.0/24').reverseNames()
        ['0.0.127.in-addr.arpa.']
        >>> IP('127.0.0.0/23').reverseNames()
        ['0.0.127.in-addr.arpa.', '1.0.127.in-addr.arpa.']
        >>> IP('127.0.0.0/16').reverseNames()
        ['0.127.in-addr.arpa.']
        >>> IP('127.0.0.0/15').reverseNames()
        ['0.127.in-addr.arpa.', '1.127.in-addr.arpa.']
        >>> IP('128.0.0.0/8').reverseNames()
        ['128.in-addr.arpa.']