Re: acme-client: add challenge hook to support dns-01

[Evan Silberman]

> On Feb 20, 2024, at 1:34 PM, Christopher Zimmermann <chr...@openbsd.org> 
> wrote:
> 
> Hi,
> 
> this diff adds a challenge hook to acme-client. This hook can be used to 
> fulfill challenges. For example by putting the requested files onto a remote 
> http server (http-01 challenge) or by modifying dns records (dns-01 
> challenge). The latter are needed to obtain wildcard certificates.
> Is this diff ok? Is the design of the hook interface sane? Any feedback is 
> welcome.

Any example hook included should probably only use tools found in base, so it 
shouldn’t depend on curl.