On Tue, 24 Mar 2009, Richard Strand wrote:
> I have created a patch for c-ares 1.6.0 which allows you to force c-ares to
> bind to a specific device for the DNS request.
>
> I suspect this will only work in Linux at the moment and will probably break
> other builds.
Right, SO_BINDTODEVICE is Linux-specific so you should rather make all this
code within #ifdef SO_BINDTODEVICE. And you'll also need super-user rights on
most machines to be allowed to use this so it'll also not work for many apps
even on Linux.
> I'd really appreciate some feedback on this. Does anyone else want this, and
> how can it be made to work cross platform?
By using "normal" bind!
For inspiration, see the bindlocal() function in libcurl's connect.c file:
http://cool.haxx.se/cvs.cgi/curl/lib/connect.c?rev=1.213&content-type=text/vnd.viewcvs-markup
-- / daniel.haxx.seReceived on 2009-03-24