Request for a wildcard with ANY returns nothing

[eirnym]

Describe the bug

For wildcard subdomain server returns nothing if ANY type has been requested

To Reproduce

Use zone definition as shown below. Only relevant parts of cdig output has been shown.

$ dig @127.0.0.1 -p 8053 ANY example.com 
;; QUESTION SECTION:
;example.com.			IN	ANY

;; ANSWER SECTION:
example.com.		86400	IN	A	127.0.0.1
example.com.		86400	IN	NS	ns.example.com.
example.com.		604800	IN	SOA	ns.example.com. root.example.com. 199609203 28800 7200 604800 86400
example.com.		86400	IN	AAAA	::1

$ dig @127.0.0.1 -p 8053 ANY www.example.com 
;; QUESTION SECTION:
;www.example.com.		IN	ANY

;; ANSWER SECTION:
www.example.com.	86400	IN	A	127.0.0.1
www.example.com.	86400	IN	AAAA	::1

$ dig @127.0.0.1 -p 8053 ANY test.example.com 
;; QUESTION SECTION:
;test.example.com.		IN	ANY

Expected behavior

AAAA and A records have been returned for wildcard domain as well.

System:

• OS: macOS
• Architecture: aarch64
• Version Monterey
• rustc version: 1.75.0

Version:
Crate: hickory-dns binary
Version: git revision da41e4a

Additional context

zone definition:

$TTL 86400

@       IN      SOA     ns.example.com.      root.example.com. (
                                199609203 ; Serial
                                8h        ; Refresh
                                120m      ; Retry
                                7d        ; Expire
                                24h)      ; Minimum TTL


@                NS      ns.example.com.

@               A       127.0.0.1
@               AAAA    ::1
www             A       127.0.0.1
www             AAAA    ::1
*               A       127.0.0.1
*               AAAA    ::1

[djc]

I agree that this is surprising. Would you be able to contribute a PR toward fixing this?

[bluejekyll]

This is probably a gap in the wildcard processing code: https://github.com/hickory-dns/hickory-dns/blob/main/crates/server/src/store/in_memory/authority.rs#L429