Olaf Hering <olaf@xxxxxxxxx> writes:
> Am Thu, 07 Nov 2019 15:15:45 +0100
> schrieb Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>:
>
>> Looping forever with a permanent error is pretty unusual...
>
> That might be true, but how would you detect a permanent error?
> Just because the DNS server is gone for one hour does not mean it will be gone forever.
'man 3 getaddrinfo' lists the following:
EAI_ADDRFAMILY
EAI_AGAIN
EAI_BADFLAGS
EAI_FAIL
EAI_FAMILY
EAI_MEMORY
EAI_NODATA
EAI_NONAME
EAI_SERVICE
EAI_SOCKTYPE
EAI_SYSTEM
I *think* what you're aiming at is EAI_AGAIN and EAI_FAIL, the rest
should probably terminate the resolver thread (e.g. AF_INET is
unsupported or something like that).
--
Vitaly
