1 files changed, 32 insertions, 0 deletions
diff --git a/nix-rust/src/lib.rs b/nix-rust/src/lib.rs
new file mode 100644
index 000000000..1b88ac8af
--- /dev/null
+++ b/nix-rust/src/lib.rs
@@ -0,0 +1,32 @@
+mod error;
+mod foreign;
+mod tarfile;
+
+pub use error::Error;
+
+pub struct CBox<T> {
+    pub ptr: *mut libc::c_void,
+    phantom: std::marker::PhantomData<T>,
+}
+
+impl<T> CBox<T> {
+    fn new(t: T) -> Self {
+        unsafe {
+            let size = std::mem::size_of::<T>();
+            let ptr = libc::malloc(size);
+            *(ptr as *mut T) = t; // FIXME: probably UB
+            Self {
+                ptr,
+                phantom: std::marker::PhantomData,
+            }
+        }
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn unpack_tarfile(
+    source: foreign::Source,
+    dest_dir: &str,
+) -> CBox<Result<(), error::CppException>> {
+    CBox::new(tarfile::unpack_tarfile(source, dest_dir).map_err(|err| err.into()))
+}