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[lwip-devel] [task #7017] Implement DNS client

From: Simon Goldschmidt
Subject: [lwip-devel] [task #7017] Implement DNS client
Date: Sun, 18 Nov 2007 20:06:42 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv: Gecko/20071025 Firefox/

Follow-up Comment #43, task #7017 (project lwip):

>> I think the found callback should have an error parameter so the 
>> caller knows why the IP was not found (memory 
>> error/timoeut/negative answer/string error...)
> Not so useful. But we can.

I think it is important to know the source of a failure (as in the rest of
the stack, when ERR_MEM is returned). The problem arises in dns.c because old
queries are aborted if too many new queries are begun.

If we don't allow new queries when the dns_table is full (so return something
like ERR_MEM instead), that would solve the problem as well.


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