Greeting Monks!
I'm sure this question has been asked and answered before but I can't find it. I apologize.
I want to compare two hostnames to see if they point to the same host/IP. I think I need to query DNS and follow any CNAMEs to get to an A record and an IP address.
This seems like something someone would have already written, but I haven't found it. I must be using the wrong search terms.
Because I rarely make sense, here's an example.
# pseudo code! Not perl!
#
# example.com = 192.168.0.10
# www.example.com = CNAME example.com
# lungfish.example.com = 192.168.0.10
# fruitbat.example.com = 192.168.0.12
compare_host_names('example.com','example.com) == true
compare_host_names('example.com','www.example.com) == true
compare_host_names('example.com','lungfish.example.com) == true
compare_host_names('example.com','fruitbat.example.com') == false
Someone has written something to do this, right? What is it called?
And for extra credit, what search terms should I have used?
Thanks!
--Pileofrogs
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