From bc5f9668e92dee2b8fcd9bd9f8aa511f1de783a9 Mon Sep 17 00:00:00 2001
From: silur <silur@cryptall.co>
Date: Mon, 29 Nov 2021 23:11:47 +0100
Subject: [PATCH] initial commit

---
 .gitignore |  2 ++
 Cargo.toml | 10 ++++++++++
 src/lib.rs | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 69 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.toml
 create mode 100644 src/lib.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..96ef6c0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..3695f7e
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "wasmfuzz"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+wasmi = "0.9.1"
+wabt = "0.10.0"
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..b5d74d8
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,57 @@
+use wasmi::{ModuleInstance, ImportsBuilder, NopExternals, RuntimeValue};
+
+fn init_population() -> Vec<u8> {
+    unimplemented!();
+}
+
+fn mutate() -> Vec<u8> {
+    unimplemented!();
+}
+
+fn asd() {
+    // Parse WAT (WebAssembly Text format) into wasm bytecode.
+    let wasm_binary: Vec<u8> =
+        wabt::wat2wasm(
+            r#"
+            (module
+                (func (export "test") (result i32)
+                    i32.const 1337
+                )
+            )
+            "#,
+        )
+        .expect("failed to parse wat");
+
+    // Load wasm binary and prepare it for instantiation.
+    let module = wasmi::Module::from_buffer(&wasm_binary)
+        .expect("failed to load wasm");
+
+    // Instantiate a module with empty imports and
+    // assert that there is no `start` function.
+    let instance =
+        ModuleInstance::new(
+            &module,
+            &ImportsBuilder::default()
+        )
+        .expect("failed to instantiate wasm module")
+        .assert_no_start();
+
+    // Finally, invoke the exported function "test" with no parameters
+    // and empty external function executor.
+    assert_eq!(
+        instance.invoke_export(
+            "test",
+            &[],
+            &mut NopExternals,
+        ).expect("failed to execute export"),
+        Some(RuntimeValue::I32(1337)),
+    );
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        super::asd();
+    }
+}