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-rw-r--r--testing/fuzzers/unittest_main.cc41
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diff --git a/testing/fuzzers/unittest_main.cc b/testing/fuzzers/unittest_main.cc
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// A simple unit-test style driver for libfuzzer tests.
+// Usage: <fuzzer_test> <file>...
+
+#include <fstream>
+#include <iostream>
+#include <iterator>
+#include <vector>
+
+// Libfuzzer API.
+extern "C" {
+// User function.
+int LLVMFuzzerTestOneInput(const unsigned char* data, size_t size);
+// Initialization function.
+__attribute__((weak)) int LLVMFuzzerInitialize(int* argc, char*** argv);
+}
+
+std::vector<char> readFile(std::string path) {
+ std::ifstream in(path);
+ return std::vector<char>((std::istreambuf_iterator<char>(in)),
+ std::istreambuf_iterator<char>());
+}
+
+int main(int argc, char** argv) {
+ if (argc == 1) {
+ std::cerr << "Usage: " << argv[0] << " <file>..." << std::endl;
+ exit(1);
+ }
+
+ if (LLVMFuzzerInitialize)
+ LLVMFuzzerInitialize(&argc, &argv);
+
+ for (int i = 1; i < argc; ++i) {
+ std::cout << argv[i] << std::endl;
+ auto v = readFile(argv[i]);
+ LLVMFuzzerTestOneInput((const unsigned char*)v.data(), v.size());
+ }
+}