Subject: Re: Finding the correct interface for a packet
To: Ronald Khoo <firstname.lastname@example.org>
From: Ken Hornstein <email@example.com>
Date: 12/02/1998 10:37:03
>> The returned struct sockaddr from getsockname() will contain the
>> IP address of the interface that the supplied IP address will be
>> using. From there, you should be able to figure out the interface name
>> by walking the interface list.
>Fails if you have the same local address on more than one interface.
Oh, you mean if you have a PPP interface and you use the same address on
your local interface? True, I had forgotten about that.