The updated parsing_hacks.h file uncovered a bunch of extra
things that the check-pointer-deref coccinelle script flags.
This commit fixes them to make the tree check-pointer-deref clean.
This basically implements nss-myhostname, but natively in
systemd-resolved, so that the logic becomes available also for clients
using the local DNS stub for resolution or the D-Bus or Varlink APIs.
We want to reuse these generic DNS concepts in resolved hook
implementations, hence move them to shared code.
(This also enables us to immediately remove som SVCB record handling
duplicate definitions.)
No real code changes, just some moving around of things.
Michael Vogt
Yu Watanabe
Lennart Poettering