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36 lines
1 KiB
Python
36 lines
1 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Tool to query an IPv4 subnet for existing PTR records
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#
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# Software is free software released under the "Modified BSD license"
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#
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# Copyright (c) 2013-2014 Alexandre Dulaunoy - a@foo.be
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import redis
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import argparse
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import netaddr
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argParser = argparse.ArgumentParser(description='ptr-db: Search PTR records')
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argParser.add_argument('-s', action='append', help='IPv4 subnet to lookup')
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argParser.add_argument('-v', action='store_true', default=False, help='Verbose output including non-existing PTR records')
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args = argParser.parse_args()
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if args.s is None:
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argParser.print_help()
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exit(1)
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# LevelDB backend using Redis protocol https://github.com/KDr2/redis-leveldb
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r = redis.StrictRedis(host='localhost', port=8323)
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for subnet in args.s:
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iplist = netaddr.IPNetwork(subnet)
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for ip in iplist:
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ptr = r.get(ip)
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if ptr is not None:
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print (str(ip)+","+str(r.get(ip), 'utf-8'))
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else:
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if args.v:
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print (str(ip))
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