add a fuzzer for our lock files

Change-Id: Iaf28aa4455ea9d798d9e2649e1e7c6f1216846f3
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/136194
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/vcl/workben/lockfuzzer.cxx b/vcl/workben/lockfuzzer.cxx
new file mode 100644
index 000000000000..cd083aaac802
--- /dev/null
+++ b/vcl/workben/lockfuzzer.cxx
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <svl/lockfilecommon.hxx>
+#include "commonfuzzer.hxx"
+
+#include <config_features.h>
+#include <com/sun/star/io/WrongFormatException.hpp>
+#include <osl/detail/component-mapping.h>
+
+const lib_to_factory_mapping* lo_get_factory_map(void)
+{
+    static lib_to_factory_mapping map[] = { { 0, 0 } };
+
+    return map;
+}
+
+const lib_to_constructor_mapping* lo_get_constructor_map(void)
+{
+    static lib_to_constructor_mapping map[] = { { 0, 0 } };
+
+    return map;
+}
+
+extern "C" void* lo_get_custom_widget_func(const char*) { return nullptr; }
+
+extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv)
+{
+    TypicalFuzzerInitialize(argc, argv);
+    return 0;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
+{
+    sal_Int32 nCurPos(0);
+    css::uno::Sequence<sal_Int8> aBuffer(reinterpret_cast<const sal_Int8*>(data), size);
+    try
+    {
+        svt::LockFileCommon::ParseEntry(aBuffer, nCurPos);
+    }
+    catch (const css::io::WrongFormatException&)
+    {
+    }
+    return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */