Function pio_network_name 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pio_network_name(
    net: *const PioNetwork,
    out: *mut c_char,
    cap: usize,
) -> usize

Case name. Writes UTF-8 bytes into out, up to cap, NUL-terminates when possible, and returns the byte length needed excluding the NUL. NULL or cap == 0 is a size query.