Move fuzzers to testing/fuzzers.

Move them out of testing/libfuzzer, to make it possible to pull
libfuzzer into that directory. Leave testing/libfuzzer/BUILD.gn there
for now as a transitional build file.

BUG=pdfium:1088

Change-Id: I4126d89dd3e075ac63477a4860e029c135866dbe
Reviewed-on: https://pdfium-review.googlesource.com/32896
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/testing/fuzzers/pdf_xml_fuzzer.cc b/testing/fuzzers/pdf_xml_fuzzer.cc
new file mode 100644
index 0000000000..a3c399f78d
--- /dev/null
+++ b/testing/fuzzers/pdf_xml_fuzzer.cc
@@ -0,0 +1,36 @@
+// Copyright 2016 The PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <cstddef>
+#include <cstdint>
+#include <memory>
+
+#include "core/fxcrt/cfx_memorystream.h"
+#include "core/fxcrt/fx_safe_types.h"
+#include "core/fxcrt/fx_system.h"
+#include "core/fxcrt/xml/cfx_xmldocument.h"
+#include "core/fxcrt/xml/cfx_xmlelement.h"
+#include "core/fxcrt/xml/cfx_xmlparser.h"
+#include "third_party/base/ptr_util.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  FX_SAFE_SIZE_T safe_size = size;
+  if (!safe_size.IsValid())
+    return 0;
+
+  auto stream = pdfium::MakeRetain<CFX_MemoryStream>(const_cast<uint8_t*>(data),
+                                                     size, false);
+
+  CFX_XMLParser parser(stream);
+  std::unique_ptr<CFX_XMLDocument> doc = parser.Parse();
+  if (!doc || !doc->GetRoot())
+    return 0;
+
+  for (CFX_XMLNode* pXMLNode = doc->GetRoot()->GetFirstChild(); pXMLNode;
+       pXMLNode = pXMLNode->GetNextSibling()) {
+    if (pXMLNode->GetType() == FX_XMLNODE_Element)
+      break;
+  }
+  return 0;
+}