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// Copyright (c) 2019-2022 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 <arith_uint256.h>
#include <common/args.h>
#include <common/system.h>
#include <compressor.h>
#include <consensus/amount.h>
#include <consensus/merkle.h>
#include <core_io.h>
#include <crypto/common.h>
#include <crypto/siphash.h>
#include <key_io.h>
#include <memusage.h>
#include <netbase.h>
#include <policy/policy.h>
#include <policy/settings.h>
#include <pow.h>
#include <protocol.h>
#include <pubkey.h>
#include <script/script.h>
#include <serialize.h>
#include <streams.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <uint256.h>
#include <univalue.h>
#include <util/chaintype.h>
#include <util/check.h>
#include <util/moneystr.h>
#include <util/overflow.h>
#include <util/strencodings.h>
#include <util/string.h>
#include <cassert>
#include <chrono>
#include <limits>
#include <set>
#include <vector>
void initialize_integer()
{
SelectParams(ChainType::REGTEST);
}
FUZZ_TARGET(integer, .init = initialize_integer)
{
if (buffer.size() < sizeof(uint256) + sizeof(uint160)) {
return;
}
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
const uint256 u256(fuzzed_data_provider.ConsumeBytes<unsigned char>(sizeof(uint256)));
const uint160 u160(fuzzed_data_provider.ConsumeBytes<unsigned char>(sizeof(uint160)));
const uint64_t u64 = fuzzed_data_provider.ConsumeIntegral<uint64_t>();
const int64_t i64 = fuzzed_data_provider.ConsumeIntegral<int64_t>();
const uint32_t u32 = fuzzed_data_provider.ConsumeIntegral<uint32_t>();
const int32_t i32 = fuzzed_data_provider.ConsumeIntegral<int32_t>();
const uint16_t u16 = fuzzed_data_provider.ConsumeIntegral<uint16_t>();
const int16_t i16 = fuzzed_data_provider.ConsumeIntegral<int16_t>();
const uint8_t u8 = fuzzed_data_provider.ConsumeIntegral<uint8_t>();
const int8_t i8 = fuzzed_data_provider.ConsumeIntegral<int8_t>();
// We cannot assume a specific value of std::is_signed<char>::value:
// ConsumeIntegral<char>() instead of casting from {u,}int8_t.
const char ch = fuzzed_data_provider.ConsumeIntegral<char>();
const bool b = fuzzed_data_provider.ConsumeBool();
const Consensus::Params& consensus_params = Params().GetConsensus();
(void)CheckProofOfWork(u256, u32, consensus_params);
if (u64 <= MAX_MONEY) {
const uint64_t compressed_money_amount = CompressAmount(u64);
assert(u64 == DecompressAmount(compressed_money_amount));
static const uint64_t compressed_money_amount_max = CompressAmount(MAX_MONEY - 1);
assert(compressed_money_amount <= compressed_money_amount_max);
} else {
(void)CompressAmount(u64);
}
static const uint256 u256_min(uint256S("0000000000000000000000000000000000000000000000000000000000000000"));
static const uint256 u256_max(uint256S("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
const std::vector<uint256> v256{u256, u256_min, u256_max};
(void)ComputeMerkleRoot(v256);
(void)CountBits(u64);
(void)DecompressAmount(u64);
{
if (std::optional<CAmount> parsed = ParseMoney(FormatMoney(i64))) {
assert(parsed.value() == i64);
}
}
(void)GetSizeOfCompactSize(u64);
(void)GetSpecialScriptSize(u32);
if (!MultiplicationOverflow(i64, static_cast<int64_t>(u32)) && !AdditionOverflow(i64, static_cast<int64_t>(4)) && !AdditionOverflow(i64 * u32, static_cast<int64_t>(4))) {
(void)GetVirtualTransactionSize(i64, i64, u32);
}
(void)HexDigit(ch);
(void)MoneyRange(i64);
(void)ToString(i64);
(void)IsDigit(ch);
(void)IsSpace(ch);
(void)IsSwitchChar(ch);
(void)memusage::DynamicUsage(ch);
(void)memusage::DynamicUsage(i16);
(void)memusage::DynamicUsage(i32);
(void)memusage::DynamicUsage(i64);
(void)memusage::DynamicUsage(i8);
(void)memusage::DynamicUsage(u16);
(void)memusage::DynamicUsage(u32);
(void)memusage::DynamicUsage(u64);
(void)memusage::DynamicUsage(u8);
const unsigned char uch = static_cast<unsigned char>(u8);
(void)memusage::DynamicUsage(uch);
{
const std::set<int64_t> i64s{i64, static_cast<int64_t>(u64)};
const size_t dynamic_usage = memusage::DynamicUsage(i64s);
const size_t incremental_dynamic_usage = memusage::IncrementalDynamicUsage(i64s);
assert(dynamic_usage == incremental_dynamic_usage * i64s.size());
}
(void)MillisToTimeval(i64);
(void)SighashToStr(uch);
(void)SipHashUint256(u64, u64, u256);
(void)SipHashUint256Extra(u64, u64, u256, u32);
(void)ToLower(ch);
(void)ToUpper(ch);
{
if (std::optional<CAmount> parsed = ParseMoney(ValueFromAmount(i64).getValStr())) {
assert(parsed.value() == i64);
}
}
if (i32 >= 0 && i32 <= 16) {
assert(i32 == CScript::DecodeOP_N(CScript::EncodeOP_N(i32)));
}
const std::chrono::seconds seconds{i64};
assert(count_seconds(seconds) == i64);
const CScriptNum script_num{i64};
(void)script_num.getint();
(void)script_num.getvch();
const arith_uint256 au256 = UintToArith256(u256);
assert(ArithToUint256(au256) == u256);
assert(uint256S(au256.GetHex()) == u256);
(void)au256.bits();
(void)au256.GetCompact(/* fNegative= */ false);
(void)au256.GetCompact(/* fNegative= */ true);
(void)au256.getdouble();
(void)au256.GetHex();
(void)au256.GetLow64();
(void)au256.size();
(void)au256.ToString();
const CKeyID key_id{u160};
const CScriptID script_id{u160};
{
DataStream stream{};
uint256 deserialized_u256;
stream << u256;
stream >> deserialized_u256;
assert(u256 == deserialized_u256 && stream.empty());
uint160 deserialized_u160;
stream << u160;
stream >> deserialized_u160;
assert(u160 == deserialized_u160 && stream.empty());
uint64_t deserialized_u64;
stream << u64;
stream >> deserialized_u64;
assert(u64 == deserialized_u64 && stream.empty());
int64_t deserialized_i64;
stream << i64;
stream >> deserialized_i64;
assert(i64 == deserialized_i64 && stream.empty());
uint32_t deserialized_u32;
stream << u32;
stream >> deserialized_u32;
assert(u32 == deserialized_u32 && stream.empty());
int32_t deserialized_i32;
stream << i32;
stream >> deserialized_i32;
assert(i32 == deserialized_i32 && stream.empty());
uint16_t deserialized_u16;
stream << u16;
stream >> deserialized_u16;
assert(u16 == deserialized_u16 && stream.empty());
int16_t deserialized_i16;
stream << i16;
stream >> deserialized_i16;
assert(i16 == deserialized_i16 && stream.empty());
uint8_t deserialized_u8;
stream << u8;
stream >> deserialized_u8;
assert(u8 == deserialized_u8 && stream.empty());
int8_t deserialized_i8;
stream << i8;
stream >> deserialized_i8;
assert(i8 == deserialized_i8 && stream.empty());
bool deserialized_b;
stream << b;
stream >> deserialized_b;
assert(b == deserialized_b && stream.empty());
}
{
const ServiceFlags service_flags = (ServiceFlags)u64;
(void)HasAllDesirableServiceFlags(service_flags);
(void)MayHaveUsefulAddressDB(service_flags);
}
{
DataStream stream{};
ser_writedata64(stream, u64);
const uint64_t deserialized_u64 = ser_readdata64(stream);
assert(u64 == deserialized_u64 && stream.empty());
ser_writedata32(stream, u32);
const uint32_t deserialized_u32 = ser_readdata32(stream);
assert(u32 == deserialized_u32 && stream.empty());
ser_writedata32be(stream, u32);
const uint32_t deserialized_u32be = ser_readdata32be(stream);
assert(u32 == deserialized_u32be && stream.empty());
ser_writedata16(stream, u16);
const uint16_t deserialized_u16 = ser_readdata16(stream);
assert(u16 == deserialized_u16 && stream.empty());
ser_writedata16be(stream, u16);
const uint16_t deserialized_u16be = ser_readdata16be(stream);
assert(u16 == deserialized_u16be && stream.empty());
ser_writedata8(stream, u8);
const uint8_t deserialized_u8 = ser_readdata8(stream);
assert(u8 == deserialized_u8 && stream.empty());
}
{
DataStream stream{};
WriteCompactSize(stream, u64);
try {
const uint64_t deserialized_u64 = ReadCompactSize(stream);
assert(u64 == deserialized_u64 && stream.empty());
} catch (const std::ios_base::failure&) {
}
}
try {
CHECK_NONFATAL(b);
} catch (const NonFatalCheckError&) {
}
}
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