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WJDigby/friendly-reverse.py

Created October 2, 2018 18:02
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Make reverse DNS output of host command more friendly.
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friendly-reverse.py
#!/usr/bin/python
'''Pipe output of host command into this script when performing reverse lookups to get a more friendly output:
while read i; do host $i | ./friendly-reverse.py; done < list.txt '''
import sys
for lookup in sys.stdin:
ip = lookup.split('.', 4)[:4]
domain = lookup.rsplit(' ', 1)[1]
print(ip[3] + '.' + ip[2] + '.' + ip[1] + '.' + ip[0] + ', ' + domain).rstrip()
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