Plot lat and lon from C code

I'm wondering, is there any way to plot map coordinates directly from C code? I'm getting a lat and lon from a TCP Stream I dissect using Wireshark and I want to create a dynamic map representation of the various points. Is there any API or system I can use to display these coordinates?

One situation I have is that the system has to run on a offline PC, so I would need to cache de various map data.

Is there any possible way of implementing this?

Thank you.

via Chebli Mohamed