添加 github.com/pion/dtls 代码

dtls-2.0.9/fuzz.go

@@ -0,0 +1,38 @@
+// +build gofuzz
+
+package dtls
+
+import "fmt"
+
+func partialHeaderMismatch(a, b recordlayer.Header) bool {
+	// Ignoring content length for now.
+	a.contentLen = b.contentLen
+	return a != b
+}
+
+func FuzzRecordLayer(data []byte) int {
+	var r recordLayer
+	if err := r.Unmarshal(data); err != nil {
+		return 0
+	}
+	buf, err := r.Marshal()
+	if err != nil {
+		return 1
+	}
+	if len(buf) == 0 {
+		panic("zero buff") // nolint
+	}
+	var nr recordLayer
+	if err = nr.Unmarshal(data); err != nil {
+		panic(err) // nolint
+	}
+	if partialHeaderMismatch(nr.recordlayer.Header, r.recordlayer.Header) {
+		panic( // nolint
+			fmt.Sprintf("header mismatch: %+v != %+v",
+				nr.recordlayer.Header, r.recordlayer.Header,
+			),
+		)
+	}
+
+	return 1
+}