Hashem enhanced the rust-lang/libc repository by developing robust SocketCAN support for Linux networking in Rust. Over two months, he built a dedicated CAN error handling module, porting Linux kernel error types and integrating them into libc’s system programming surface. He also implemented CAN netlink bindings and introduced the ifinfomsg structure, expanding interface messaging capabilities. Using Rust and leveraging FFI techniques, Hashem exposed new structures for CAN bus timing, control modes, and device statistics, improving error diagnosability and network interface handling. His work deepened libc’s Linux networking integration, enabling more reliable and portable CAN communications for Rust-based applications.