[lwip-devel] [patch #9721] DNS: Allow a DNS look-up with a trailing dot in the name

[Craig McQueen]

Follow-up Comment #3, patch #9721 (project lwip):

That makes sense.

So the check for trailing dot would be implemented in
dns_gethostbyname_addrtype()?

The one difficulty I see with passing a hostnamelen to dns_lookup() is, that
would affect the call to DNS_LOOKUP_LOCAL_EXTERN(). Either the hostnamelen
would have to be passed to DNS_LOOKUP_LOCAL_EXTERN(), which would change the
API, or else dns_lookup() would need to make a local temporary copy of the
name, with the trailing dot removed. What's the best thing to do?

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