This commit converts the license handling to adhere to the REUSE
specification. It specifically:
1. Adds used licnses to LICENSES/ directory
2. Add "isc" template for adding the copyright boilerplate
3. Changes all source files to include copyright and SPDX license
header, this includes all the C sources, documentation, zone files,
configuration files. There are notes in the doc/dev/copyrights file
on how to add correct headers to the new files.
4. Handle the rest that can't be modified via .reuse/dep5 file. The
binary (or otherwise unmodifiable) files could have license places
next to them in <foo>.license file, but this would lead to cluttered
repository and most of the files handled in the .reuse/dep5 file are
system test files.
(cherry picked from commit 58bd26b6cf)
This changes the behaviour so that it explicitly lists DS records that
are present in the parent but do not have keys in the child. Any
inconsistency is reported as an error, which is somewhat stricter than
before.
This is for conformance with the DS/CDS algorithm requirements in
https://tools.ietf.org/html/draft-ietf-dnsop-algorithm-update
This makes the `-12a` options to `dnssec-dsfromkey` work more like
`dnssec-cds`, in that you can specify more than one digest and you
will get multiple records. (Previously you could only get one
non-default digest type at a time.)
The default is now `-2`. You can get the old behaviour with `-12`.
Tests and tools that use `dnssec-dsfromkey` have been updated to use
`-12` where necessary.
This is for conformance with the DS/CDS algorithm requirements in
https://tools.ietf.org/html/draft-ietf-dnsop-algorithm-update
