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ictus4u/subnets.py

Created September 26, 2022 12:56
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  1. ictus4u created this gist Sep 26, 2022.
    19 changes: 19 additions & 0 deletions subnets.py
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,19 @@
    #!/usr/bin/env python
    from ipaddress import ip_network
    from sys import argv

    start = '0.0.0.0/0'
    exclude = argv[1:]

    result = [ip_network(start)]
    for x in exclude:
    n = ip_network(x)
    new = []
    for y in result:
    if y.overlaps(n):
    new.extend(y.address_exclude(n))
    else:
    new.append(y)
    result = new

    print(','.join(str(x) for x in sorted(result)))