Miek Gieben 560f11d148 EDNS0 unknown flags handling (#313) ...

Fix the unknown flags handling when receiving such message. We should
zero out all of the Z bits in the OPT record before returning.

Current behavior:

    dig +norec +noad +ednsflags=0x80 soa miek.nl @deb.atoom.net
    ...
    ; EDNS: version: 0, flags:; MBZ: 0080 , udp: 4096

New:

    dig +norec +noad +ednsflags=0x80 soa miek.nl @localhost -p 2053
    ...
    ; EDNS: version: 0, flags:; udp: 4096

Take care no to overwrite the Do bit.

We still accept *all* EDNS option; I do not consider that a bug in
itself.

Fixes #306

2016-10-02 17:23:25 +01:00

..

request_test.go

Cleanup: put middleware helper functions in pkgs (#245)

2016-09-07 11:10:16 +01:00

request.go

EDNS0 unknown flags handling (#313)

2016-10-02 17:23:25 +01:00