tree bf365f0b25885d9fd2a21710ae375d7ea0e13fad
parent 094b5c3d904bae9aeb3206d9f3b8348926b84975
author Simon Kelley <simon@thekelleys.org.uk> 1419196913 +0000
committer Simon Kelley <simon@thekelleys.org.uk> 1419196913 +0000

Make caching work for CNAMEs pointing to A/AAAA records shadowed in /etc/hosts

If the answer to an upstream query is a CNAME which points to an
A/AAAA record which also exists in /etc/hosts and friends, then
caching is suppressed, to avoid inconsistent answers. This is
now modified to allow caching when the upstream and local A/AAAA
records have the same value.