Add fuzzer for DTLS parser

Author: chifflier

fuzz/Cargo.toml

@@ -24,3 +24,9 @@ path = "fuzzers/parse_tls_plaintext.rs"
 [[bin]]
 name = "parse_tls_extension"
 path = "fuzzers/parse_tls_extension.rs"
+
+[[bin]]
+name = "parse_dtls_plaintext"
+path = "fuzzers/parse_dtls_plaintext.rs"
+test = false
+doc = false

fuzz/fuzzers/parse_dtls_plaintext.rs

@@ -0,0 +1,8 @@
+#![no_main]
+extern crate libfuzzer_sys;
+use libfuzzer_sys::fuzz_target;
+
+fuzz_target!(|data: &[u8]| {
+    // fuzzed code goes here
+    let _ = tls_parser::parse_dtls_plaintext_record(data);
+});