WIP: middleware/dnstap (#711)

middleware/dnstap add

vendor/github.com/farsightsec/golang-framestream/framestream.go

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2014 by Farsight Security, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package framestream
+
+import (
+	"errors"
+	"io"
+)
+
+const DEFAULT_MAX_PAYLOAD_SIZE = 1048576
+const MAX_CONTROL_FRAME_SIZE = 512
+
+var EOF = io.EOF
+var ErrContentTypeMismatch = errors.New("content type mismatch")
+var ErrDataFrameTooLarge = errors.New("data frame too large")
+var ErrShortRead = errors.New("short read")
+var ErrDecode = errors.New("decoding error")
+var ErrType = errors.New("invalid type")