| /* |
| * |
| * Copyright 2016 gRPC authors. |
| * |
| * 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 <stdbool.h> |
| |
| #include <dirent.h> |
| #include <gflags/gflags.h> |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <gtest/gtest.h> |
| #include <stdio.h> |
| #include <sys/types.h> |
| |
| #include "src/core/lib/gpr/env.h" |
| #include "src/core/lib/iomgr/load_file.h" |
| #include "test/core/util/test_config.h" |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size); |
| extern bool squelch; |
| extern bool leak_check; |
| |
| // In some distros, gflags is in the namespace google, and in some others, |
| // in gflags. This hack is enabling us to find both. |
| namespace google {} |
| namespace gflags {} |
| using namespace google; |
| using namespace gflags; |
| |
| DEFINE_string(file, "", "Use this file as test data"); |
| DEFINE_string(directory, "", "Use this directory as test data"); |
| |
| class FuzzerCorpusTest : public ::testing::TestWithParam<std::string> {}; |
| |
| TEST_P(FuzzerCorpusTest, RunOneExample) { |
| gpr_log(GPR_DEBUG, "Example file: %s", GetParam().c_str()); |
| grpc_slice buffer; |
| squelch = false; |
| leak_check = false; |
| GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file", |
| grpc_load_file(GetParam().c_str(), 0, &buffer))); |
| LLVMFuzzerTestOneInput(GRPC_SLICE_START_PTR(buffer), |
| GRPC_SLICE_LENGTH(buffer)); |
| grpc_slice_unref(buffer); |
| } |
| |
| class ExampleGenerator |
| : public ::testing::internal::ParamGeneratorInterface<std::string> { |
| public: |
| virtual ::testing::internal::ParamIteratorInterface<std::string>* Begin() |
| const; |
| virtual ::testing::internal::ParamIteratorInterface<std::string>* End() const; |
| |
| private: |
| void Materialize() const { |
| if (examples_.empty()) { |
| if (!FLAGS_file.empty()) examples_.push_back(FLAGS_file); |
| if (!FLAGS_directory.empty()) { |
| char* test_srcdir = gpr_getenv("TEST_SRCDIR"); |
| if (test_srcdir != nullptr) { |
| FLAGS_directory = test_srcdir + |
| std::string("/com_github_grpc_grpc/") + |
| FLAGS_directory; |
| } |
| DIR* dp; |
| struct dirent* ep; |
| dp = opendir(FLAGS_directory.c_str()); |
| |
| if (dp != nullptr) { |
| while ((ep = readdir(dp)) != nullptr) { |
| if (ep->d_type == DT_REG) { |
| examples_.push_back(FLAGS_directory + "/" + ep->d_name); |
| } |
| } |
| |
| (void)closedir(dp); |
| } else { |
| perror("Couldn't open the directory"); |
| abort(); |
| } |
| gpr_free(test_srcdir); |
| } |
| } |
| } |
| |
| mutable std::vector<std::string> examples_; |
| }; |
| |
| class ExampleIterator |
| : public ::testing::internal::ParamIteratorInterface<std::string> { |
| public: |
| ExampleIterator(const ExampleGenerator& base_, |
| std::vector<std::string>::const_iterator begin) |
| : base_(base_), begin_(begin), current_(begin) {} |
| |
| virtual const ExampleGenerator* BaseGenerator() const { return &base_; } |
| |
| virtual void Advance() { current_++; } |
| virtual ExampleIterator* Clone() const { return new ExampleIterator(*this); } |
| virtual const std::string* Current() const { return &*current_; } |
| |
| virtual bool Equals(const ParamIteratorInterface<std::string>& other) const { |
| return &base_ == other.BaseGenerator() && |
| current_ == dynamic_cast<const ExampleIterator*>(&other)->current_; |
| } |
| |
| private: |
| ExampleIterator(const ExampleIterator& other) |
| : base_(other.base_), begin_(other.begin_), current_(other.current_) {} |
| |
| const ExampleGenerator& base_; |
| const std::vector<std::string>::const_iterator begin_; |
| std::vector<std::string>::const_iterator current_; |
| }; |
| |
| ::testing::internal::ParamIteratorInterface<std::string>* |
| ExampleGenerator::Begin() const { |
| Materialize(); |
| return new ExampleIterator(*this, examples_.begin()); |
| } |
| |
| ::testing::internal::ParamIteratorInterface<std::string>* |
| ExampleGenerator::End() const { |
| Materialize(); |
| return new ExampleIterator(*this, examples_.end()); |
| } |
| |
| INSTANTIATE_TEST_CASE_P( |
| CorpusExamples, FuzzerCorpusTest, |
| ::testing::internal::ParamGenerator<std::string>(new ExampleGenerator)); |
| |
| int main(int argc, char** argv) { |
| grpc_test_init(argc, argv); |
| ParseCommandLineFlags(&argc, &argv, true); |
| ::testing::InitGoogleTest(&argc, argv); |
| |
| return RUN_ALL_TESTS(); |
| } |