fix: updated gopacket to fix compilation issues on macOS (ref #357)

vendor/github.com/google/gopacket/layers/tls_appdata.go

@@ -0,0 +1,34 @@
+// Copyright 2018 The GoPacket Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree.
+
+package layers
+
+import (
+	"errors"
+
+	"github.com/google/gopacket"
+)
+
+// TLSAppDataRecord contains all the information that each AppData Record types should have
+type TLSAppDataRecord struct {
+	TLSRecordHeader
+	Payload []byte
+}
+
+// DecodeFromBytes decodes the slice into the TLS struct.
+func (t *TLSAppDataRecord) decodeFromBytes(h TLSRecordHeader, data []byte, df gopacket.DecodeFeedback) error {
+	// TLS Record Header
+	t.ContentType = h.ContentType
+	t.Version = h.Version
+	t.Length = h.Length
+
+	if len(data) != int(t.Length) {
+		return errors.New("TLS Application Data length mismatch")
+	}
+
+	t.Payload = data
+	return nil
+}