Dmytro Shynkevych 6c71e5b851
tsdns: copy name when loewrcasing.
The previous approach modifies name in-place in the request slice to avoid an allocation.
This is incorrect: the question section of a DNS request
must be copied verbatim, without any such modification.
Software may rely on it (we rely on other resolvers doing it it in tsdns/forwarder).

Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
2020-08-20 19:02:23 -04:00
..
2020-08-20 19:02:23 -04:00