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194 lines
8.4 KiB
C++
194 lines
8.4 KiB
C++
// Copyright (c) 2020 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 <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/fuzz.h>
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#include <tinyformat.h>
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#include <util/strencodings.h>
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#include <util/translation.h>
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#include <algorithm>
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#include <cstdint>
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#include <string>
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#include <vector>
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void test_one_input(const std::vector<uint8_t>& buffer)
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{
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FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
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const std::string format_string = fuzzed_data_provider.ConsumeRandomLengthString(64);
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const bilingual_str bilingual_string{format_string, format_string};
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const int digits_in_format_specifier = std::count_if(format_string.begin(), format_string.end(), IsDigit);
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// Avoid triggering the following crash bug:
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// * strprintf("%987654321000000:", 1);
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//
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// Avoid triggering the following OOM bug:
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// * strprintf("%.222222200000000$", 1.1);
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//
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// Upstream bug report: https://github.com/c42f/tinyformat/issues/70
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if (format_string.find('%') != std::string::npos && digits_in_format_specifier >= 7) {
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return;
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}
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// Avoid triggering the following crash bug:
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// * strprintf("%1$*1$*", -11111111);
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//
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// Upstream bug report: https://github.com/c42f/tinyformat/issues/70
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if (format_string.find('%') != std::string::npos && format_string.find('$') != std::string::npos && format_string.find('*') != std::string::npos && digits_in_format_specifier > 0) {
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return;
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}
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// Avoid triggering the following crash bug:
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// * strprintf("%.1s", (char*)nullptr);
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//
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// (void)strprintf(format_string, (char*)nullptr);
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//
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// Upstream bug report: https://github.com/c42f/tinyformat/issues/70
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try {
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(void)strprintf(format_string, (signed char*)nullptr);
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(void)tinyformat::format(bilingual_string, (signed char*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (unsigned char*)nullptr);
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(void)tinyformat::format(bilingual_string, (unsigned char*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (void*)nullptr);
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(void)tinyformat::format(bilingual_string, (void*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (bool*)nullptr);
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(void)tinyformat::format(bilingual_string, (bool*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (float*)nullptr);
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(void)tinyformat::format(bilingual_string, (float*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (double*)nullptr);
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(void)tinyformat::format(bilingual_string, (double*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (int16_t*)nullptr);
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(void)tinyformat::format(bilingual_string, (int16_t*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (uint16_t*)nullptr);
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(void)tinyformat::format(bilingual_string, (uint16_t*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (int32_t*)nullptr);
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(void)tinyformat::format(bilingual_string, (int32_t*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (uint32_t*)nullptr);
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(void)tinyformat::format(bilingual_string, (uint32_t*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (int64_t*)nullptr);
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(void)tinyformat::format(bilingual_string, (int64_t*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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(void)strprintf(format_string, (uint64_t*)nullptr);
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(void)tinyformat::format(bilingual_string, (uint64_t*)nullptr);
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} catch (const tinyformat::format_error&) {
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}
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try {
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switch (fuzzed_data_provider.ConsumeIntegralInRange(0, 5)) {
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case 0:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeRandomLengthString(32));
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeRandomLengthString(32));
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break;
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case 1:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeRandomLengthString(32).c_str());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeRandomLengthString(32).c_str());
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break;
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case 2:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<signed char>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<signed char>());
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break;
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case 3:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<unsigned char>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<unsigned char>());
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break;
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case 4:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<char>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<char>());
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break;
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case 5:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeBool());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeBool());
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break;
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}
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} catch (const tinyformat::format_error&) {
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}
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if (format_string.find('%') != std::string::npos && format_string.find('c') != std::string::npos) {
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// Avoid triggering the following:
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// * strprintf("%c", 1.31783e+38);
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// tinyformat.h:244:36: runtime error: 1.31783e+38 is outside the range of representable values of type 'char'
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return;
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}
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if (format_string.find('%') != std::string::npos && format_string.find('*') != std::string::npos) {
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// Avoid triggering the following:
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// * strprintf("%*", -2.33527e+38);
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// tinyformat.h:283:65: runtime error: -2.33527e+38 is outside the range of representable values of type 'int'
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// * strprintf("%*", -2147483648);
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// tinyformat.h:763:25: runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
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return;
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}
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try {
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switch (fuzzed_data_provider.ConsumeIntegralInRange(0, 7)) {
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case 0:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeFloatingPoint<float>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeFloatingPoint<float>());
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break;
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case 1:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeFloatingPoint<double>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeFloatingPoint<double>());
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break;
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case 2:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<int16_t>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<int16_t>());
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break;
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case 3:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<uint16_t>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<uint16_t>());
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break;
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case 4:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<int32_t>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<int32_t>());
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break;
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case 5:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<uint32_t>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<uint32_t>());
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break;
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case 6:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<int64_t>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<int64_t>());
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break;
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case 7:
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(void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<uint64_t>());
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(void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<uint64_t>());
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break;
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}
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} catch (const tinyformat::format_error&) {
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}
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}
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