Avoid crashing on empty or . domains specified.
Upstream Changelog:
Fix crash on startup with a --synth-domain which has no prefix.
Introduced in 2.79. Thanks to Andreas Engel for the bug report.
Resolves: RHEL-15216
--local=/example/ and --address=/example/# create records, which contain
no address or just NULL address. Some people generate quite large
blocklists, which then can take quite long to walk through. Because it
uses linear algorithm, it gets quite slow.
Similar to upstream in 2.86, avoid walking through literal addresses or
local blocks. Speeds up significantly loading of 50k or more records.
Fixed regression caused by commit 73f4c86bcc
Resolves: rhbz#2233542
(cherry picked from commit 418de6681f)
When log-facility is used to create a new file, make that file also
writeable by root. Systemd strips the ability to write into this file
even when started by root. Allow root explicitly.
Resolves: rhbz#2207798
(cherry picked from commit cafac891ea)
Ensure correct domain entries are prepared also for DBus specified
domains. Initialize server_domain when adding new nameserver, no matter
what is its source. Do not wait for check_servers() to domain
initialization.
Resolves: rhbz#2186481
In case the server->serv_domain points to domain also when it is not the
last server used, ensure the reference to last_server is always reset.
Some records might reference the server_domain, but cannot ever become
last_server. Such as server=/example.com/#
Do proper check also for above case and do not delete used serv_domain
structure. Also do optimization to reuse common server domains and do
not create new entry to already existing one.
Do two step cleaning during nameservers cleanup stage. Should avoid any
invalid pointer present.
Resolves: rhbz#2186481
