2 files changed, 65 insertions, 0 deletions
diff --git a/custom_mutators/rust/example/Cargo.toml b/custom_mutators/rust/example/Cargo.toml
new file mode 100644
index 00000000..070d23b1
--- /dev/null
+++ b/custom_mutators/rust/example/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "example_mutator"
+version = "0.1.0"
+authors = ["Julius Hohnerlein <julihoh@users.noreply.github.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+custom_mutator = { path = "../custom_mutator" }
+
+[[example]]
+name = "example_mutator"
+path = "./src/example_mutator.rs"
+crate-type = ["cdylib"]
\ No newline at end of file
diff --git a/custom_mutators/rust/example/src/example_mutator.rs b/custom_mutators/rust/example/src/example_mutator.rs
new file mode 100644
index 00000000..c4711dd1
--- /dev/null
+++ b/custom_mutators/rust/example/src/example_mutator.rs
@@ -0,0 +1,50 @@
+#![cfg(unix)]
+#![allow(unused_variables)]
+
+use custom_mutator::{export_mutator, CustomMutator};
+
+struct ExampleMutator;
+
+impl CustomMutator for ExampleMutator {
+    type Error = ();
+
+    fn init(seed: u32) -> Result<Self, Self::Error> {
+        Ok(Self)
+    }
+
+    fn fuzz<'b, 's: 'b>(
+        &'s mut self,
+        buffer: &'b mut [u8],
+        add_buff: Option<&[u8]>,
+        max_size: usize,
+    ) -> Result<Option<&'b [u8]>, Self::Error> {
+        buffer.reverse();
+        Ok(Some(buffer))
+    }
+}
+
+struct OwnBufferExampleMutator {
+    own_buffer: Vec<u8>,
+}
+
+impl CustomMutator for OwnBufferExampleMutator {
+    type Error = ();
+
+    fn init(seed: u32) -> Result<Self, Self::Error> {
+        Ok(Self {
+            own_buffer: Vec::new(),
+        })
+    }
+
+    fn fuzz<'b, 's: 'b>(
+        &'s mut self,
+        buffer: &'b mut [u8],
+        add_buff: Option<&[u8]>,
+        max_size: usize,
+    ) -> Result<Option<&'b [u8]>, ()> {
+        self.own_buffer.reverse();
+        Ok(Some(self.own_buffer.as_slice()))
+    }
+}
+
+export_mutator!(ExampleMutator);