RE: [lwip-users] DNS client for lwIP raw API

[Taranowski, Thomas (SWCOE)]

This is sweet.  I've been wanting some DNS functionality for awhile.
Thanks.

> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden
On
> Behalf Of Pettinato, Jim
> Sent: Tuesday, June 19, 2007 5:30 AM
> To: Mailing list for lwIP users
> Subject: [lwip-users] DNS client for lwIP raw API
> 
> 
> All:
> 
> As mentioned here before, I have ported Adam Dunkel's original uIP DNS
> client (resolv.c) to something that works for raw API apps. There has
> been some interest expressed recently in this code by others, and
since
> I don't want to keep everyone who might benefit waiting until we
decide
> whether to integrate this into the core or maintain it as a separate
> application, I have attached the module here.
> 
> In the nature of the raw API, this DNS client has been implemented
using
> the callback scheme - there is a gethostbyname() function that accepts
a
> callback argument that is stored away if a query is required for the
> requested host, and then is called when the DNS query completes or
times
> out. See the header file for more details.
> 
> The only requirements to use it (other than including the module in
the
> build and calling gethostbyname() with an appropriate callback
function)
> is to call resolv_init() with an appropriate DNS server IP address,
and
> adding a call to the resolve_tmr() function approximately once a
second
> in your timer routine.
> 
> Let me know if you 1. can't access the attachment and 2. need this
code
> immediately; and I'll post it as inline text or forward it to your
> specific email address.
> 
> - Jim
> 
> __
> 
> 
> James M. Pettinato, Jr.
> Software Engineer
> E: address@hidden | P: 814 898 5250
> 
> FMC Technologies Measurement Solutions Inc.
> 1602 Wagner Avenue | Erie PA | 16510 USA
> Phone: 814 898 5000 | Fax: 814 899-3414
> www.fmctechnologies.com