Re: need information : option to set network interface for the DNS requests.
On 09/30/2011 06:33 AM, arjun sj wrote:
> Hi All,
> Is there a way in which you can set the network interface to which the DNS requests can be bound to.
> We have a project which requires to use a highpriority streaming session go through one interface and all
the other requests channeled through the second one.
> example: setting 'eth0' so that all the ares requests will go through 'eth0' and not on 'wlan0'.
> I was not able to find any API in c-ares (in ares_init_options() API) that gives this option of setting interface.
> Can you please let me know if there is some way to achive this or if I missed something.
Yes, there is:
These are some snippets from my curl patches at:
You don't need any of my curl patches, but they could be
an example of how to set these things in c-ares. You should
be able to search through the c-ares code and man pages to
find info on these methods as well.
ares_set_local_dev((ares_channel)data->state.resolver, va_arg(param, char *));
ares_set_local_ip4((ares_channel)data->state.resolver, va_arg(param, uint32_t));
ares_set_servers_csv((ares_channel)data->state.resolver, va_arg(param, const char*));
Ben Greear <greearb@...>
Candela Technologies Inc http://www.candelatech.com