Fuzzer for FEC header readers. (pt. 6a)

webrtc/test/fuzzers/ulpfec_header_reader_fuzzer.cc

Index: webrtc/test/fuzzers/ulpfec_header_reader_fuzzer.cc
diff --git a/webrtc/test/fuzzers/ulpfec_header_reader_fuzzer.cc b/webrtc/test/fuzzers/ulpfec_header_reader_fuzzer.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b06c29e3a929dcd6ee5c64602e2357c0e78c0b57
--- /dev/null
+++ b/webrtc/test/fuzzers/ulpfec_header_reader_fuzzer.cc
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (c) 2015 The WebRTC project 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. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/base/scoped_ref_ptr.h"
+#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
+#include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
+#include "webrtc/modules/rtp_rtcp/source/ulpfec_header_reader_writer.h"
+
+namespace webrtc {
+
+using Packet = ForwardErrorCorrection::Packet;
+
+void FuzzOneInput(const uint8_t* data, size_t size) {
+  if (size > IP_PACKET_SIZE) {

[stefan-webrtc, 2016/09/13 10:42:21]

Instead of doing this you can just copy at most IP_PACKET_SIZE at line 27.

[brandtr, 2016/09/13 10:59:28]

Done.

+    return;
+  }
+
+  ForwardErrorCorrection::ReceivedFecPacket packet;
+  packet.pkt = rtc::scoped_refptr<Packet>(new Packet());
+  memcpy(packet.pkt->data, data, size);
+  packet.pkt->length = size;
+
+  UlpfecHeaderReader ulpfec_reader;
+  ulpfec_reader.ReadFecHeader(&packet);
+}
+
+}  // namespace webrtc