Converting C++ source code to ANSI C (22K LOC)

The task is to port the original project (developed in C++) to pure Ansi C. This will require familiarity with certain cryptography concepts, peer-to-peer programming, multi-threading, and a number of C++ libraries (e.g. Boost) as more than 50% of the code comprise of libraries. Only Ansi C compliant libraries can be used in the target project and all libraries must be open source. Required completion time is 30 days max. The project is purely for academic purposes and there are no commercial interests. Feel free to ask questions if interested.