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https://github.com/mozilla/gecko-dev.git
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265e672179
# ignore-this-changeset --HG-- extra : amend_source : 4d301d3b0b8711c4692392aa76088ba7fd7d1022
74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* * This Source Code Form is subject to the terms of the Mozilla Public
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* * License, v. 2.0. If a copy of the MPL was not distributed with this
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* * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <cstdlib>
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#include "FuzzerRunner.h"
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#include "mozilla/Attributes.h"
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#include "prenv.h"
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#include "FuzzerTestHarness.h"
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namespace mozilla {
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// We use a static var 'fuzzerRunner' defined in nsAppRunner.cpp.
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// fuzzerRunner is initialized to nullptr but if this file is linked in,
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// then fuzzerRunner will be set here indicating that
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// we want to call into either LibFuzzer's main or the AFL entrypoint.
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class _InitFuzzer {
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public:
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_InitFuzzer() { fuzzerRunner = new FuzzerRunner(); }
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} InitLibFuzzer;
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int FuzzerRunner::Run(int* argc, char*** argv) {
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ScopedXPCOM xpcom("Fuzzer");
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const char* fuzzerEnv = getenv("FUZZER");
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if (!fuzzerEnv) {
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fuzzerEnv = getenv("LIBFUZZER");
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if (fuzzerEnv) {
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fprintf(stderr,
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"Fuzzer Interface: Warning: \
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Using deprecated LIBFUZZER variable, use FUZZER instead\n");
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} else {
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fprintf(stderr,
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"Must specify fuzzing target in FUZZER environment variable\n");
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return 1;
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}
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}
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std::string moduleNameStr(fuzzerEnv);
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FuzzerFunctions funcs =
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FuzzerRegistry::getInstance().getModuleFunctions(moduleNameStr);
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FuzzerInitFunc initFunc = funcs.first;
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FuzzerTestingFunc testingFunc = funcs.second;
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if (initFunc) {
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int ret = initFunc(argc, argv);
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if (ret) {
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fprintf(stderr, "Fuzzing Interface: Error: Initialize callback failed\n");
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return ret;
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}
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}
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if (!testingFunc) {
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fprintf(stderr, "Fuzzing Interface: Error: No testing callback found\n");
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return 1;
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}
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#ifdef LIBFUZZER
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return mFuzzerDriver(argc, argv, testingFunc);
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#else
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// For AFL, testingFunc points to the entry function we need.
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return testingFunc(NULL, 0);
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#endif
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}
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#ifdef LIBFUZZER
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void FuzzerRunner::setParams(LibFuzzerDriver aDriver) {
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mFuzzerDriver = aDriver;
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}
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#endif
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} // namespace mozilla
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