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https://github.com/bitcoin/bitcoin.git
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fab8eeed82
This is a whitespace-only clang-format change. To verify it, one can run: ```sh (git show | git apply --reverse ) && ( git diff -U0 | ./contrib/devtools/clang-format-diff.py -p1 -i -v ) && git diff HEAD ``` A few minor, non-macro formatting adjustments were made in touched files: * `src/wallet/test/fuzz/crypter.cpp`: Removed a redundant double semicolon * `src/test/fuzz/txorphan.cpp`: Corrected indentation on an `else if` block. * `src/test/fuzz/mini_miner.cpp`: Removed an unnecessary empty line.
72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
// Copyright (c) 2020-present The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <span.h>
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#include <streams.h>
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#include <test/fuzz/fuzz.h>
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/util.h>
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#include <util/obfuscation.h>
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#include <array>
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#include <cstddef>
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#include <cstdint>
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#include <iostream>
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#include <optional>
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#include <vector>
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FUZZ_TARGET(buffered_file)
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{
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FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
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FuzzedFileProvider fuzzed_file_provider{fuzzed_data_provider};
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std::optional<BufferedFile> opt_buffered_file;
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const auto key_bytes{ConsumeFixedLengthByteVector<std::byte>(fuzzed_data_provider, Obfuscation::KEY_SIZE)};
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AutoFile fuzzed_file{
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fuzzed_file_provider.open(),
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Obfuscation{std::span{key_bytes}.first<Obfuscation::KEY_SIZE>()},
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};
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try {
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auto n_buf_size = fuzzed_data_provider.ConsumeIntegralInRange<uint64_t>(0, 4096);
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auto n_rewind_in = fuzzed_data_provider.ConsumeIntegralInRange<uint64_t>(0, 4096);
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opt_buffered_file.emplace(fuzzed_file, n_buf_size, n_rewind_in);
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} catch (const std::ios_base::failure&) {
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}
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if (opt_buffered_file && !fuzzed_file.IsNull()) {
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bool setpos_fail = false;
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LIMITED_WHILE (fuzzed_data_provider.ConsumeBool(), 100) {
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CallOneOf(
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fuzzed_data_provider,
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[&] {
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std::array<std::byte, 4096> arr{};
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try {
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opt_buffered_file->read({arr.data(), fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 4096)});
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} catch (const std::ios_base::failure&) {
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}
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},
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[&] {
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opt_buffered_file->SetLimit(fuzzed_data_provider.ConsumeIntegralInRange<uint64_t>(0, 4096));
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},
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[&] {
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if (!opt_buffered_file->SetPos(fuzzed_data_provider.ConsumeIntegralInRange<uint64_t>(0, 4096))) {
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setpos_fail = true;
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}
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},
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[&] {
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if (setpos_fail) {
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// Calling FindByte(...) after a failed SetPos(...) call may result in an infinite loop.
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return;
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}
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try {
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opt_buffered_file->FindByte(std::byte(fuzzed_data_provider.ConsumeIntegral<uint8_t>()));
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} catch (const std::ios_base::failure&) {
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}
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},
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[&] {
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ReadFromStream(fuzzed_data_provider, *opt_buffered_file);
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});
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}
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opt_buffered_file->GetPos();
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}
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}
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