1 files changed, 53 insertions, 0 deletions
diff --git a/fuzz/locale_fuzzer/locale_fuzzer.cpp b/fuzz/locale_fuzzer/locale_fuzzer.cpp
new file mode 100644
index 0000000..8ae5140
--- /dev/null
+++ b/fuzz/locale_fuzzer/locale_fuzzer.cpp
@@ -0,0 +1,53 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * 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.
+ *
+ *****************************************************************************
+ */
+#include <fuzzer/FuzzedDataProvider.h>
+
+#include "LocaleListCache.h"
+#include "minikin/LocaleList.h"
+
+using namespace minikin;
+
+const SubtagBits subtangBits[] = {SubtagBits::EMPTY,  SubtagBits::LANGUAGE, SubtagBits::SCRIPT,
+                                  SubtagBits::REGION, SubtagBits::VARIANT,  SubtagBits::EMOJI,
+                                  SubtagBits::ALL};
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+    FuzzedDataProvider fdp(data, size);
+
+    uint32_t id = registerLocaleList(fdp.ConsumeRandomLengthString());
+    uint32_t localeListId = fdp.ConsumeIntegralInRange<uint32_t>(0, id);
+    const LocaleList& locales = LocaleListCache::getById(localeListId);
+    std::string langTag = getLocaleString(localeListId);
+
+    for (size_t i = 0; i < locales.size(); i++) {
+        locales[i].getPartialLocale(fdp.PickValueInArray(subtangBits));
+        locales[i].supportsScript(fdp.ConsumeIntegral<uint32_t>());
+        locales[i].calcScoreFor(locales);
+    }
+
+    BufferWriter fakeWriter(nullptr);
+    LocaleListCache::writeTo(&fakeWriter, LocaleListCache::getId(langTag));
+    std::vector<uint8_t> buffer(fakeWriter.size());
+    BufferWriter writer(buffer.data());
+    LocaleListCache::writeTo(&writer, LocaleListCache::getId(langTag));
+    BufferReader reader(buffer.data());
+    LocaleListCache::readFrom(&reader);
+
+    return 0;
+}