crun rust hooks

build.rs

use std::env;
use std::process::Command;
use std::path::Path;

fn main() {
    let out_dir = env::var("OUT_DIR").unwrap();
    Command::new("make").current_dir(&Path::new("../..")).arg("install").arg(&format!("DESTDIR={}", out_dir)).status().unwrap();
    println!("cargo:rustc-link-search=native={}/usr/local/lib", out_dir);
    println!("cargo:rustc-link-lib=static=crun");
    println!("cargo:rustc-link-lib=yajl");
    println!("cargo:rustc-link-lib=seccomp");
    println!("cargo:rustc-link-lib=systemd");
    println!("cargo:rustc-link-lib=selinux");
    println!("cargo:rustc-link-lib=cap");
}

main.rs

mod libcrun;
use std::ptr;
use crate::libcrun::libcrun_context_s;
use crate::libcrun::libcrun_context_t;
use crate::libcrun::libcrun_error_s;
use crate::libcrun::libcrun_error_t;
use crate::libcrun::libcrun_container_start;
use crate::libcrun::log_write_to_stderr;
use std::ffi::CString;

fn get_context(cid: *const ::std::os::raw::c_char) -> libcrun_context_s {
    let mut ctx = libcrun_context_s {
        state_root: ::std::ptr::null(),
        id: cid,
        bundle: ::std::ptr::null(),
        console_socket: ::std::ptr::null(),
        pid_file: ::std::ptr::null(),
        notify_socket: ::std::ptr::null(),
        preserve_fds: 0,
        output_handler: Some(log_write_to_stderr),
        output_handler_arg: ::std::ptr::null_mut(),
        fifo_exec_wait_fd: -1,
        systemd_cgroup: false,
        detach: false,
        no_subreaper: false,
        no_new_keyring: false,
    };
    ctx
}

fn main() {
    let c = CString::new("foo").expect("CString failed").into_raw();
    let mut err = ::std::ptr::null_mut::<libcrun_error_s>();
    let mut ctx = get_context(c);

    unsafe {
        libcrun_container_start(&mut ctx, c, &mut err);
        if err != ::std::ptr::null_mut::<libcrun_error_s>() {
            print!("Got {:#?} \n", CString::from_raw((*err).msg));
        }
    }
}