backport patch to resolv for underqualified domain names #48
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In the Ruby stdlib that ships with JRubies < 9.0, there was a bug that prevented underqualified domain names from resolving (that is, domain names with fewer dots in them than the configured minimum, which defaults to 1).
Effectively this prevented unqualified domain names (e.g., dot-less domain names registered with a dns server like dnsmasq, or even
localhost
) from resolving.If applicable to the runtime, this patch backports a patch from https://bugs.ruby-lang.org/issues/10412
It also clean up the
resolv_patch.rb
file in two ways:logstash/filter/dns
directory to avoid it being loaded accidentally (and perhaps out-of-order) by another plugin