cidr-to-iplist.py

cidr-to-iplist.py

#!/usr/bin/env python

from netaddr import IPNetwork
import sys
from random import shuffle

if len(sys.argv) != 3:
    sys.exit("Input and output file is needed")

file_with_cidr_data = sys.argv[1]
file_to_save_ip_list_to = sys.argv[2]

try:
    lines = open(file_with_cidr_data,"r").readlines()
except Exception as e:
    sys.exit("Input '{}' file does not exist!".format(file_with_cidr_data))
    pass

ips_list = []

for line in lines:
    if line.strip() == "":
        continue

    for ip in IPNetwork(line):
        print("{}".format(ip))
        ips_list.append("{}".format(ip))

shuffle(ips_list)
ips = "\n".join(ips_list)

f = open(file_to_save_ip_list_to, "w")
f.write(ips)