51 lines
1.9 KiB
C++
51 lines
1.9 KiB
C++
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/*
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* Copyright 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <iostream>
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#include "android-base/file.h"
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#include "fuzzer/FuzzedDataProvider.h"
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#include "utils/FileMap.h"
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static constexpr uint16_t MAX_STR_SIZE = 256;
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static constexpr uint8_t MAX_FILENAME_SIZE = 32;
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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FuzzedDataProvider dataProvider(data, size);
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TemporaryFile tf;
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// Generate file contents
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std::string contents = dataProvider.ConsumeRandomLengthString(MAX_STR_SIZE);
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// If we have string contents, dump them into the file.
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// Otherwise, just leave it as an empty file.
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if (contents.length() > 0) {
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const char* bytes = contents.c_str();
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android::base::WriteStringToFd(bytes, tf.fd);
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}
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android::FileMap m;
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// Generate create() params
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std::string orig_name = dataProvider.ConsumeRandomLengthString(MAX_FILENAME_SIZE);
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size_t length = dataProvider.ConsumeIntegralInRange<size_t>(1, SIZE_MAX);
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off64_t offset = dataProvider.ConsumeIntegralInRange<off64_t>(1, INT64_MAX);
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bool read_only = dataProvider.ConsumeBool();
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m.create(orig_name.c_str(), tf.fd, offset, length, read_only);
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m.getDataOffset();
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m.getFileName();
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m.getDataLength();
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m.getDataPtr();
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int enum_index = dataProvider.ConsumeIntegral<int>();
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m.advise(static_cast<android::FileMap::MapAdvice>(enum_index));
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return 0;
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}
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