How to get the subnet mask using C?

[vkarthik]

I need to retrieve the subnet mask of the default network interface of a PC, using C language. The OS is linux.

Does anybody know some C function that does this? I know that there are some files storing the interface details, and they can be read and parsed. But is there a simpler way out?

This may not be the right forum, but I'm posting it here since most of the linux commands can be used as C library functions.


LOL A ship is safe in the harbour, but that's not what it is meant for!!! LOL

 

[pansophic]

I would think that a quick look at the 'ifconfig' or 'route' source code would solve your problem easily.

They are, after all, open source.


pansophic