Add cargo-fuzz targets

README.md

@@ -123,3 +123,11 @@ cargo test -p {melib, meli} (-- --nocapture) (--test test_name)
 perf record -g target/debug/bin
 perf script | stackcollapse-perf | rust-unmangle | flamegraph > perf.svg
 ```
+
+# Running fuzz targets
+
+Note: `cargo-fuzz` requires the nightly toolchain.
+
+```sh
+cargo +nightly fuzz run envelope_parse -- -dict=fuzz/envelope_tokens.dict
+```

fuzz/.gitignore

@@ -0,0 +1,4 @@
+
+target
+corpus
+artifacts

fuzz/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "melib-fuzz"
+version = "0.0.0"
+authors = ["Automatically generated"]
+publish = false
+edition = "2018"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.3"
+
+[dependencies.melib]
+path = "../melib"
+features = ["unicode_algorithms"]
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "envelope_parse"
+path = "fuzz_targets/envelope_parse.rs"

fuzz/envelope_tokens.dict

@@ -0,0 +1,25 @@
+","
+";"
+"<"
+">"
+"@"
+":"
+# tab character
+"\x09"
+# new line character
+"\x0A"
+"  "
+"Subject: "
+"Subject"
+"To"
+"To: "
+"Date"
+"Date: "
+"Message-Id"
+"Message-Id: "
+"From"
+"From: "
+"Cc"
+"Cc: "
+"Bcc"
+"Bcc: "

fuzz/fuzz_targets/envelope_parse.rs

@@ -0,0 +1,11 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+
+extern crate melib;
+
+use melib::Envelope;
+
+fuzz_target!(|data: &[u8]| {
+    // fuzzed code goes here
+    let _envelope = Envelope::from_bytes(data, None);
+});