Dead simple HTTP server that returns the client's IP, written in pure C. Supports IPv6 and IPv4.
Hosted right now at http://publicip.is
./publicip.is <listen-port> <num-threads (optional, default is number of cores)>
Just run make
make debug and make release are supported, release is default.
I also have a meson build in case I want to add anything complicated like profiling in the future:
meson build
mescon compile -C build