On Fri, 17 Sep 2004 12:21:40 +0530 vijay kalkoti <vijayck@gmail.com> wrote: > Hi all, > > I have 2 queries ; > > 1. How to find out the different network interfaces on the system in a > C program. ( assuming more than 1 network interfaces are present in > the system.) i.e, are there any system calls or any mechanism of > knowing this in a program. > (NOT BY SHELL COMMAND ifconfig or so.. ) You could also use sysfs and look in /sys/class/net. There is a library to do it as well (libsysfs). > 2. How to know the Layer 3 protocol running on the netowork interface. Addressing is managed at the Layer 3 protocol. So you really need to look at info from each protocol and map that to devices. - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
