Commits on Jan 6, 2021

1. add missing null check …

   I have a unbound forward zone configured on my router for my $DAYJOB.
   The address associated with the zone is only accessible when the router
   is connected to a VPN. If the VPN connection is absent, trying to
   resolve any domain that must be handled by the zone crashes unbound.
   Turns out there's a missing NULL check in `comm_point_send_udp_msg()`.
   The same routine already has `if (addr) {} else {}` branches so I guess
   protecting the call to `log_addr()` using the same conditional is
   reasonable
   
   I have also committed the same fix to unbound shipped with OpenBSD[1].
   
   [1] https://marc.info/?l=openbsd-cvs&m=160993335615698&w=2

   

   mptre committed Jan 6, 2021
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