Quick IP addresses functions

gistfile1.txt

import socket
import struct

def quadtolong(ip):
    return struct.unpack('!L',socket.inet_aton(ip))[0]

def longtoquad(long):
    return socket.inet_ntoa(struct.pack('!L', long))

def inc_ip(ip):
    return longtoquad(quadtolong(ip)+1)

def dec_ip(ip):
    return longtoquad(quadtolong(ip)-1)

def ipsort(ip_list):
    long_list = sorted([quadtolong(x) for x in ip_list])
    return [longtoquad(x) for x in long_list]