RE: [lwip-users] Usage example for DNS client (resolv.c)

[Pettinato, Jim]

Well... I'm sure Adam won't mind us borrowing from uIP... ;-) and the
required citations are included.

As for me, I ported it with the intention of contributing it back here;
I actually have been waiting until we got through our final test (you'll
note there's a few TODO's still remaining in there that I wanted to
address). I guess some people were in a hurry for it though.

I think we're safe in assuming that this resolver code is GPL lesser... 

That said, I'm not sure about the other apps (such as the SMTP snippet I
included here) we've developed here in-house - I need to verify that
it's okay to share those. I maybe will also be able to contribute SMTP,
POP3, and LPR clients but I can see there might be some resistance
internally from management considering our competitors could potentially
utilize it - either to catch up quickly or to sabotage our equipment... 

I'll see what I can do about those...

- Jim


-----Original Message-----
From: address@hidden
[mailto:address@hidden On Behalf
Of Goldschmidt Simon
Sent: Tuesday, June 19, 2007 9:09 AM
To: Mailing list for lwIP users
Subject: RE: [lwip-users] Usage example for DNS client (resolv.c)



> The following is one of the places where I am using the DNS
> functionality - I'm posting it as an example for others who 
> wish to integrate it. 
> 
> The resolv_init() function must be called with the IP address
> of your DNS server before any lookups are performed. (You 
> don't want to call this more than once unless your DNS server 
> IP changes, except if you also want to delete any cached 
> entries in the local table).
> 
> Remember you must add a call to resolv_tmr() so it runs
> approximately once a second in your timer routine - that is 
> what actually triggers any pending queries to be processed.
> 
> Hope you find it useful,

Nice code and I'd find it usefule to integrate into the stack. Under
which license is this DNS client available? Are we allowed to integrate
it in the core of lwIP (or add it in CVS contrib)?

Simon


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