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此仓库是为了提升国内下载速度的镜像仓库,每日同步一次。 原始仓库: https://github.com/google/snappy
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snappy_uncompress_fuzzer.cc 2.42 KB
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// Copyright 2019 Google Inc. All Rights Reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// libFuzzer harness for fuzzing snappy's decompression code.
#include <stddef.h>
#include <stdint.h>
#include <cassert>
#include <string>
#include "snappy.h"
// Entry point for LibFuzzer.
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
std::string input(reinterpret_cast<const char*>(data), size);
// Avoid self-crafted decompression bombs.
size_t uncompressed_size;
constexpr size_t kMaxUncompressedSize = 1 << 20;
bool get_uncompressed_length_succeeded = snappy::GetUncompressedLength(
input.data(), input.size(), &uncompressed_size);
if (!get_uncompressed_length_succeeded ||
(uncompressed_size > kMaxUncompressedSize)) {
return 0;
}
std::string uncompressed;
// The return value of snappy::Uncompress() is ignored because decompression
// will fail on invalid inputs.
snappy::Uncompress(input.data(), input.size(), &uncompressed);
return 0;
}
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