Got it, Use pcap library. And use the function pcap_findalldevs(). This function directly gives all the interfaces that can be opened using pcap library to capture the packets. On Mon, 13 Sep 2004 22:13:45 +1000, Martijn van Oosterhout <kleptog@svana.org> wrote: > Do an strace on ifconfig to see how it does it. > > My guess there is three options > > 1. Read from /proc/net/dev > 2. Use the ioctl interface used by ifconfig > 3. Use netlink as used by the iproute tools > > These's documentation on each of these, look it up. > > > > On Mon, Sep 13, 2004 at 05:37:32PM +0530, vijay kalkoti wrote: > > Hi all, > > > > How to find different network interfaces present in the system, using > > a C program (Not by ifconfig shell command). > > > > And also how to find which protocol (IPv4 or IPv6), is supporting the interface. > > > > Thanks & Regards > > vijayck > > - > > : 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 > > -- > Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/ > > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > > tool for doing 5% of the work and then sitting around waiting for someone > > else to do the other 95% so you can sue them. > > > > - : 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
