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Bug #14612
closedIPv6 address inconsistency (downcase vs. upcase)
Description
I've noticed that sometimes ip addresses re shown using a-f characters in downcase, other times upcase. Here is a small script to show results:
require "resolv"
require "socket"
puts TCPSocket.getaddress("nghttp2.org") #=> "2400:8902::f03c:91ff:fe69:a454"
puts Resolv.getaddresses("nghttp2.org") #=> ["139.162.123.134", "2400:8902::F03C:91FF:FE69:A454"]
Results might be system-dependent (I'm using Mac OS High Sierra).
This makes compare operations a bit harder.
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