libsgxstep: Raw bindings for Rust

sgxstep-sys/.gitignore

@@ -0,0 +1 @@
+target/

sgxstep-sys/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "sgxstep-sys"
+version = "0.1.0"
+edition = "2021"
+links = "libsgxstep"
+authors = ["Daan Vanoverloop", "Jo Van Bulck"]
+license = "GPL-3.0"
+repository = "https://github.com/jovanbulck/sgx-step/"
+
+[features]
+default = ["build"]
+build = ["cc", "glob"]
+
+[dependencies]
+
+[build-dependencies]
+cc = { version = "1.0", optional = true }
+glob = { version = "0.3", optional = true }
+bindgen = "0.69"
+

sgxstep-sys/build.rs

@@ -0,0 +1,30 @@
+use std::{env, path::PathBuf};
+
+fn main() {
+    #[cfg(feature = "build")]
+    {
+        cc::Build::new()
+            .files(
+                glob::glob("../libsgxstep/*.c")
+                    .unwrap()
+                    .filter_map(|e| e.ok()),
+            )
+            .cargo_metadata(true)
+            .compile("sgxstep");
+    }
+
+    let bindings = bindgen::Builder::default()
+        .header("wrapper.h")
+        .clang_arg(format!(
+            "-I{}",
+            env::var("LIBSGXSTEP").expect("missing LIBSGXSTEP environment variable")
+        ))
+        .parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
+        .generate()
+        .expect("Unable to generate bindings");
+
+    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
+    bindings
+        .write_to_file(out_path.join("bindings.rs"))
+        .expect("Couldn't write bindings!");
+}