AdGuardDNS/VENDOR_PATCHES.md

Patches

Some of the vendored dependencies were patched.

1. request.go -- always compress responses

   diff --git a/vendor/github.com/coredns/coredns/request/request.go b/vendor/github.com/coredns/coredns/request/request.go
   index 7374b0b..268b008 100644
   --- a/vendor/github.com/coredns/coredns/request/request.go
   +++ b/vendor/github.com/coredns/coredns/request/request.go
   @@ -219,27 +219,7 @@ func (r *Request) SizeAndDo(m *dns.Msg) bool {
    // get the bit, the client should then retry with pigeons.
    func (r *Request) Scrub(reply *dns.Msg) *dns.Msg {
           reply.Truncate(r.Size())
   -
   -       if reply.Compress {
   -               return reply
   -       }
   -
   -       if r.Proto() == "udp" {
   -               rl := reply.Len()
   -               // Last ditch attempt to avoid fragmentation, if the size is bigger than the v4/v6 UDP fragmentation
   -               // limit and sent via UDP compress it (in the hope we go under that limit). Limits taken from NSD:
   -               //
   -               //    .., 1480 (EDNS/IPv4), 1220 (EDNS/IPv6), or the advertised EDNS buffer size if that is
   -               //    smaller than the EDNS default.
   -               // See: https://open.nlnetlabs.nl/pipermail/nsd-users/2011-November/001278.html
   -               if rl > 1480 && r.Family() == 1 {
   -                       reply.Compress = true
   -               }
   -               if rl > 1220 && r.Family() == 2 {
   -                       reply.Compress = true
   -               }
   -       }
   -
   +       reply.Compress = true
           return reply
    }
   
   

2. forward plugin fork

   Exposed parseStanza to our "alternate" plugin fork.

   // Exposed to our "alternate" plugin
   func ParseForwardStanza(c *caddy.Controller) (*Forward, error) {
       return parseStanza(c)
   }
   

3. "alternate" plugin fork

   Use our "forward" plugin fork instead of the original "forward".

4. "health" plugin fork

   Use "/health-check" instead of "/health"