git / moonbite-core / src/test/fuzz/strprintf.cpp · raw

// Copyright (c) 2020 The Bitcoin Core developers// Distributed under the MIT software license, see the accompanying// file COPYING or http://www.opensource.org/licenses/mit-license.php.#include <test/fuzz/FuzzedDataProvider.h>#include <test/fuzz/fuzz.h>#include <tinyformat.h>#include <util/strencodings.h>#include <util/translation.h>#include <algorithm>#include <cstdint>#include <string>#include <vector>void test_one_input(const std::vector<uint8_t>& buffer){    FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());    const std::string format_string = fuzzed_data_provider.ConsumeRandomLengthString(64);    const bilingual_str bilingual_string{format_string, format_string};    const int digits_in_format_specifier = std::count_if(format_string.begin(), format_string.end(), IsDigit);    // Avoid triggering the following crash bug:    // * strprintf("%987654321000000:", 1);    //    // Avoid triggering the following OOM bug:    // * strprintf("%.222222200000000$", 1.1);    //    // Upstream bug report: https://github.com/c42f/tinyformat/issues/70    if (format_string.find('%') != std::string::npos && digits_in_format_specifier >= 7) {        return;    }    // Avoid triggering the following crash bug:    // * strprintf("%1$*1$*", -11111111);    //    // Upstream bug report: https://github.com/c42f/tinyformat/issues/70    if (format_string.find('%') != std::string::npos && format_string.find('$') != std::string::npos && format_string.find('*') != std::string::npos && digits_in_format_specifier > 0) {        return;    }    // Avoid triggering the following crash bug:    // * strprintf("%.1s", (char*)nullptr);    //    // (void)strprintf(format_string, (char*)nullptr);    //    // Upstream bug report: https://github.com/c42f/tinyformat/issues/70    try {        (void)strprintf(format_string, (signed char*)nullptr);        (void)tinyformat::format(bilingual_string, (signed char*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (unsigned char*)nullptr);        (void)tinyformat::format(bilingual_string, (unsigned char*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (void*)nullptr);        (void)tinyformat::format(bilingual_string, (void*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (bool*)nullptr);        (void)tinyformat::format(bilingual_string, (bool*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (float*)nullptr);        (void)tinyformat::format(bilingual_string, (float*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (double*)nullptr);        (void)tinyformat::format(bilingual_string, (double*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (int16_t*)nullptr);        (void)tinyformat::format(bilingual_string, (int16_t*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (uint16_t*)nullptr);        (void)tinyformat::format(bilingual_string, (uint16_t*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (int32_t*)nullptr);        (void)tinyformat::format(bilingual_string, (int32_t*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (uint32_t*)nullptr);        (void)tinyformat::format(bilingual_string, (uint32_t*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (int64_t*)nullptr);        (void)tinyformat::format(bilingual_string, (int64_t*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        (void)strprintf(format_string, (uint64_t*)nullptr);        (void)tinyformat::format(bilingual_string, (uint64_t*)nullptr);    } catch (const tinyformat::format_error&) {    }    try {        switch (fuzzed_data_provider.ConsumeIntegralInRange(0, 5)) {        case 0:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeRandomLengthString(32));            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeRandomLengthString(32));            break;        case 1:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeRandomLengthString(32).c_str());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeRandomLengthString(32).c_str());            break;        case 2:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<signed char>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<signed char>());            break;        case 3:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<unsigned char>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<unsigned char>());            break;        case 4:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<char>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<char>());            break;        case 5:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeBool());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeBool());            break;        }    } catch (const tinyformat::format_error&) {    }    if (format_string.find('%') != std::string::npos && format_string.find('c') != std::string::npos) {        // Avoid triggering the following:        // * strprintf("%c", 1.31783e+38);        // tinyformat.h:244:36: runtime error: 1.31783e+38 is outside the range of representable values of type 'char'        return;    }    if (format_string.find('%') != std::string::npos && format_string.find('*') != std::string::npos) {        // Avoid triggering the following:        // * strprintf("%*", -2.33527e+38);        // tinyformat.h:283:65: runtime error: -2.33527e+38 is outside the range of representable values of type 'int'        // * strprintf("%*", -2147483648);        // 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        return;    }    try {        switch (fuzzed_data_provider.ConsumeIntegralInRange(0, 7)) {        case 0:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeFloatingPoint<float>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeFloatingPoint<float>());            break;        case 1:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeFloatingPoint<double>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeFloatingPoint<double>());            break;        case 2:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<int16_t>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<int16_t>());            break;        case 3:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<uint16_t>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<uint16_t>());            break;        case 4:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<int32_t>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<int32_t>());            break;        case 5:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<uint32_t>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<uint32_t>());            break;        case 6:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<int64_t>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<int64_t>());            break;        case 7:            (void)strprintf(format_string, fuzzed_data_provider.ConsumeIntegral<uint64_t>());            (void)tinyformat::format(bilingual_string, fuzzed_data_provider.ConsumeIntegral<uint64_t>());            break;        }    } catch (const tinyformat::format_error&) {    }}