34 lines
671 B
Python
34 lines
671 B
Python
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#!/usr/bin/env python3
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from ipaddress import ip_network
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import argparse
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parser = argparse.ArgumentParser(description="")
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parser.add_argument(
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"-e",
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"--exclude",
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required=False,
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type=str,
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action="append",
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help="IP range that should be excluded from 0.0.0.0/0",
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)
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args = parser.parse_args()
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start: str = "0.0.0.0/0"
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exclude: list[str] = args.exclude
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result = [ip_network(start)]
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for i in exclude:
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n = ip_network(i)
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new = []
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for k in result:
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if k.overlaps(n):
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new.extend(k.address_exclude(n))
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else:
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new.append(k)
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result = new
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print(", ".join(str(i) for i in sorted(result)) + ", ::0/0")
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