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[lwip-devel] [patch #9721] DNS: Allow a DNS look-up with a trailing dot
From: |
Craig McQueen |
Subject: |
[lwip-devel] [patch #9721] DNS: Allow a DNS look-up with a trailing dot in the name |
Date: |
Wed, 14 Nov 2018 18:57:07 -0500 (EST) |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0 |
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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