diff --git a/src/core_read.cpp b/src/core_read.cpp index 6482860aa7..e9c73b1111 100644 --- a/src/core_read.cpp +++ b/src/core_read.cpp @@ -24,20 +24,20 @@ opcodetype ParseOpCode(const std::string& s) { static std::map mapOpNames; - if (mapOpNames.empty()) - { - for (unsigned int op = 0; op <= MAX_OPCODE; op++) - { + if (mapOpNames.empty()) { + for (unsigned int op = 0; op <= MAX_OPCODE; op++) { // Allow OP_RESERVED to get into mapOpNames - if (op < OP_NOP && op != OP_RESERVED) + if (op < OP_NOP && op != OP_RESERVED) { continue; + } std::string strName = GetOpName(static_cast(op)); - if (strName == "OP_UNKNOWN") + if (strName == "OP_UNKNOWN") { continue; + } mapOpNames[strName] = static_cast(op); // Convenience: OP_ADD and just ADD are both recognized: - if (strName.compare(0, 3, "OP_") == 0) { // strName starts with "OP_" + if (strName.compare(0, 3, "OP_") == 0) { // strName starts with "OP_" mapOpNames[strName.substr(3)] = static_cast(op); } } @@ -56,44 +56,35 @@ CScript ParseScript(const std::string& s) std::vector words = SplitString(s, " \t\n"); - for (std::vector::const_iterator w = words.begin(); w != words.end(); ++w) - { - if (w->empty()) - { + for (const std::string& w : words) { + if (w.empty()) { // Empty string, ignore. (SplitString doesn't combine multiple separators) - } - else if (std::all_of(w->begin(), w->end(), ::IsDigit) || - (w->front() == '-' && w->size() > 1 && std::all_of(w->begin()+1, w->end(), ::IsDigit))) + } else if (std::all_of(w.begin(), w.end(), ::IsDigit) || + (w.front() == '-' && w.size() > 1 && std::all_of(w.begin() + 1, w.end(), ::IsDigit))) { // Number - int64_t n = LocaleIndependentAtoi(*w); + const auto num{ToIntegral(w)}; - //limit the range of numbers ParseScript accepts in decimal - //since numbers outside -0xFFFFFFFF...0xFFFFFFFF are illegal in scripts - if (n > int64_t{0xffffffff} || n < -1 * int64_t{0xffffffff}) { + // limit the range of numbers ParseScript accepts in decimal + // since numbers outside -0xFFFFFFFF...0xFFFFFFFF are illegal in scripts + if (!num.has_value() || num > int64_t{0xffffffff} || num < -1 * int64_t{0xffffffff}) { throw std::runtime_error("script parse error: decimal numeric value only allowed in the " "range -0xFFFFFFFF...0xFFFFFFFF"); } - result << n; - } - else if (w->substr(0,2) == "0x" && w->size() > 2 && IsHex(std::string(w->begin()+2, w->end()))) - { + result << num.value(); + } else if (w.substr(0, 2) == "0x" && w.size() > 2 && IsHex(std::string(w.begin() + 2, w.end()))) { // Raw hex data, inserted NOT pushed onto stack: - std::vector raw = ParseHex(std::string(w->begin()+2, w->end())); + std::vector raw = ParseHex(std::string(w.begin() + 2, w.end())); result.insert(result.end(), raw.begin(), raw.end()); - } - else if (w->size() >= 2 && w->front() == '\'' && w->back() == '\'') - { + } else if (w.size() >= 2 && w.front() == '\'' && w.back() == '\'') { // Single-quoted string, pushed as data. NOTE: this is poor-man's // parsing, spaces/tabs/newlines in single-quoted strings won't work. - std::vector value(w->begin()+1, w->end()-1); + std::vector value(w.begin() + 1, w.end() - 1); result << value; - } - else - { + } else { // opcode, e.g. OP_ADD or ADD: - result << ParseOpCode(*w); + result << ParseOpCode(w); } } diff --git a/src/test/script_parse_tests.cpp b/src/test/script_parse_tests.cpp index 5b8b6a725f..004c1a9a84 100644 --- a/src/test/script_parse_tests.cpp +++ b/src/test/script_parse_tests.cpp @@ -38,7 +38,6 @@ BOOST_AUTO_TEST_CASE(parse_script) {"'17'", "023137"}, {"ELSE", "67"}, {"NOP10", "b9"}, - {"11111111111111111111", "00"}, }; std::string all_in; std::string all_out; @@ -49,6 +48,7 @@ BOOST_AUTO_TEST_CASE(parse_script) } BOOST_CHECK_EQUAL(HexStr(ParseScript(all_in)), all_out); + BOOST_CHECK_EXCEPTION(ParseScript("11111111111111111111"), std::runtime_error, HasReason("script parse error: decimal numeric value only allowed in the range -0xFFFFFFFF...0xFFFFFFFF")); BOOST_CHECK_EXCEPTION(ParseScript("11111111111"), std::runtime_error, HasReason("script parse error: decimal numeric value only allowed in the range -0xFFFFFFFF...0xFFFFFFFF")); BOOST_CHECK_EXCEPTION(ParseScript("OP_CHECKSIGADD"), std::runtime_error, HasReason("script parse error: unknown opcode")); } diff --git a/src/util/strencodings.h b/src/util/strencodings.h index 2931a986f8..f9a33fb64f 100644 --- a/src/util/strencodings.h +++ b/src/util/strencodings.h @@ -90,7 +90,7 @@ void SplitHostPort(std::string in, uint16_t &portOut, std::string &hostOut); // LocaleIndependentAtoi is provided for backwards compatibility reasons. // -// New code should use the ParseInt64/ParseUInt64/ParseInt32/ParseUInt32 functions +// New code should use ToIntegral or the ParseInt* functions // which provide parse error feedback. // // The goal of LocaleIndependentAtoi is to replicate the exact defined behaviour @@ -143,7 +143,7 @@ constexpr inline bool IsSpace(char c) noexcept { /** * Convert string to integral type T. Leading whitespace, a leading +, or any * trailing character fail the parsing. The required format expressed as regex - * is `-?[0-9]+`. + * is `-?[0-9]+`. The minus sign is only permitted for signed integer types. * * @returns std::nullopt if the entire string could not be parsed, or if the * parsed value is not in the range representable by the type T. diff --git a/test/util/data/bitcoin-util-test.json b/test/util/data/bitcoin-util-test.json index db9622d371..5d78d2edb1 100644 --- a/test/util/data/bitcoin-util-test.json +++ b/test/util/data/bitcoin-util-test.json @@ -235,6 +235,12 @@ "output_cmp": "txcreate2.json", "description": "Parses a transaction with no inputs and a single output script (output in json)" }, + { "exec": "./dash-tx", + "args": ["-create", "outscript=0:999999999999999999999999999999"], + "return_code": 1, + "error_txt": "error: script parse error: decimal numeric value only allowed in the range -0xFFFFFFFF...0xFFFFFFFF", + "description": "Try to parse an output script with a decimal number above the allowed range" + }, { "exec": "./dash-tx", "args": ["-create", "outscript=0:9999999999"], "return_code": 1,