Command Line Usage

Install the bindgen executable with cargo:

$ cargo install bindgen

The bindgen executable is installed to ~/.cargo/bin. You have to add that directory to your $PATH to use bindgen.

bindgen takes the path to an input C or C++ header file, and optionally an output file path for the generated bindings. If the output file path is not supplied, the bindings are printed to stdout.

If we wanted to generated Rust FFI bindings from a C header named input.h and put them in the file, we would invoke bindgen like this:

$ bindgen input.h -o

For more details, pass the --help flag:

$ bindgen --help