check list of ips against list of networks/netmasks

ips_in_networks.py

#!/usr/bin/env python
import sys

import ipaddress

if __name__ == "__main__":
    if len(sys.argv) < 3:
        print("Usage:\n\t%s ips_file networks_file" % sys.argv[0])
        sys.exit(0)

    ips_fn = sys.argv[1]
    networks_fn = sys.argv[2]

    with open(ips_fn) as f:
        ips = f.readlines()
        ips = [ip.strip('\n') for ip in ips]
        ips = [ipaddress.IPv4Address(unicode(ip)) for ip in ips]

    with open(networks_fn) as f:
        networks = f.readlines()
        networks = [net.strip('\n') for net in networks]
        networks = [ipaddress.IPv4Network(unicode(net)) for net in networks]

    for ip in ips:
        if not any(ip in net for net in networks):
            print("NOT covered %s" % ip)
        else:
            print("covered: %s" % ip)