4401. [misc] Change LICENSE to MPL 2.0.

do not overflow exit status. [RT #42643]

update copyright notice / whitespace

fix subnet prefix

update copyright notice / whitespace

[master] fix geoip options 4284. [bug] Some GeoIP options were incorrectly documented using abbreviated forms which were not accepted by named. The code has been updated to allow both long and abbreviated forms. [RT #41381]

[master] geoip security fixes 4003. [security] When geoip-directory was reconfigured during named run-time, the previously loaded GeoIP data could remain, potentially causing wrong ACLs to be used or wrong results to be served based on geolocation. [RT #37720] 4002. [security] Lookups in GeoIP databases that were not loaded could cause an assertion failure. [RT #37679] 4001. [security] The caching of GeoIP lookups did not always handle address families correctly, potentially resulting in an assertion failure. [RT #37672]

[master] ECS authoritative support 3936. [func] Added authoritative support for the EDNS Client Subnet (ECS) option. ACLs can now include "ecs" elements which specify an address or network prefix; if an ECS option is included in a DNS query, then the address encoded in the option will be matched against "ecs" ACL elements. Also, if an ECS address is included in a query, then it will be used instead of the client source address when matching "geoip" ACL elements. This behavior can be overridden with "geoip-use-ecs no;". When "ecs" or "geoip" ACL elements are used to select a view for a query, the response will include an ECS option to indicate which client network the answer is valid for. (Thanks to Vincent Bernat.) [RT #36781]

[master] fix geoip asnum matching 3935. [bug] "geoip asnum" ACL elements would not match unless the full organization name was specified. They can now match against the AS number alone (e.g., AS1234). [RT #36945]

[master] fixed geoip elements in named ACLs 3835. [bug] Geoip ACL elements didn't work correctly when referenced via named or nested ACLs. [RT #35879]

update copyright notice

[master] fixed geoip in blackhole ACLs 3722. [bug] Using geoip ACLs in a blackhole statement could cause a segfault. [RT #35272]

update copyrights

[master] add geoip support 3504. [func] Add support for ACLs based on geographic location, using MaxMind GeoIP databases. Based on code contributed by Ken Brownfield <kb@slide.com>. [RT #30681]