On Oct 12, 2006, at 7:27 AM, Stephane wrote:
In Mac OS X, there can be multiple network interface enabled and
running at the same time. For instance, you can be connected to
the Internet though the Ethernet Port and sharing the connection
with other computers on AirPort. But AFAIK, there is only one
interface that is used to send packets to the outside using
applications such as Safari, Mail, iChat, ftp, etc...
I would like to know what this interface is.
I had a look at the SystemConfiguration frameworks API and while I
saw some yummy features, I didn't seem to find any API to do this.
A look at the Networking sample code list didn't show anything
either.
So is there a way with the system configuration framework to get
this information without having to use some "tricky" stuff such as
creating a socket to find which default network interface is going
to be used? Could it be something like enumerating all the network
configurations and finding the first one with an enabled IP address?
How about something like :
CFStringRef
getPrimaryAddress(void)
{
[...] Nice code [...]
return address;
}
