The nix crate provides an UNIX Rust API to handle signals, however it requires using unsafe rust so you should be careful.
use nix::sys::signal;
extern fn handle_sigint(_:i32) {
// Be careful here...
}
fn main() {
let sig_action = signal::SigAction::new(handle_sigint,
signal::SockFlag::empty(),
signal::SigSet::empty());
signal::sigaction(signal::SIGINT, &sig_action);
}