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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

10,258 bytes · SHA-256 03d5b833f9fa1003… · View upstream ↗

1// Copyright (c) 2019-present The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5#include <arith_uint256.h>
6#include <common/args.h>
7#include <common/system.h>
8#include <compressor.h>
9#include <consensus/amount.h>
10#include <consensus/merkle.h>
11#include <core_io.h>
12#include <crypto/common.h>
13#include <crypto/siphash.h>
14#include <key_io.h>
15#include <memusage.h>
16#include <netbase.h>
17#include <policy/policy.h>
18#include <policy/settings.h>
19#include <pow.h>
20#include <protocol.h>
21#include <pubkey.h>
22#include <script/script.h>
23#include <serialize.h>
24#include <streams.h>
25#include <test/fuzz/FuzzedDataProvider.h>
26#include <test/fuzz/fuzz.h>
27#include <test/fuzz/util.h>
28#include <uint256.h>
29#include <univalue.h>
30#include <util/chaintype.h>
31#include <util/check.h>
32#include <util/moneystr.h>
33#include <util/overflow.h>
34#include <util/strencodings.h>
35#include <util/string.h>
36
37#include <cassert>
38#include <chrono>
39#include <limits>
40#include <set>
41#include <vector>
42
43using util::ToString;
44
45void initialize_integer()
46{
47    SelectParams(ChainType::REGTEST);
48}
49
50FUZZ_TARGET(integer, .init = initialize_integer)
51{
52    if (buffer.size() < sizeof(uint256) + sizeof(uint160)) {
53        return;
54    }
55    FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
56    const uint256 u256(fuzzed_data_provider.ConsumeBytes<unsigned char>(sizeof(uint256)));
57    const uint160 u160(fuzzed_data_provider.ConsumeBytes<unsigned char>(sizeof(uint160)));
58    const uint64_t u64 = fuzzed_data_provider.ConsumeIntegral<uint64_t>();
59    const int64_t i64 = fuzzed_data_provider.ConsumeIntegral<int64_t>();
60    const uint32_t u32 = fuzzed_data_provider.ConsumeIntegral<uint32_t>();
61    const int32_t i32 = fuzzed_data_provider.ConsumeIntegral<int32_t>();
62    const uint16_t u16 = fuzzed_data_provider.ConsumeIntegral<uint16_t>();
63    const int16_t i16 = fuzzed_data_provider.ConsumeIntegral<int16_t>();
64    const uint8_t u8 = fuzzed_data_provider.ConsumeIntegral<uint8_t>();
65    const int8_t i8 = fuzzed_data_provider.ConsumeIntegral<int8_t>();
66    // We cannot assume a specific value of std::is_signed_v<char>:
67    // ConsumeIntegral<char>() instead of casting from {u,}int8_t.
68    const char ch = fuzzed_data_provider.ConsumeIntegral<char>();
69    const bool b = fuzzed_data_provider.ConsumeBool();
70    const uint64_t u64_2{fuzzed_data_provider.ConsumeIntegral<uint64_t>()};
71
72    const Consensus::Params& consensus_params = Params().GetConsensus();
73    (void)CheckProofOfWorkImpl(u256, u32, consensus_params);
74    if (u64 <= MAX_MONEY) {
75        const uint64_t compressed_money_amount = CompressAmount(u64);
76        assert(u64 == DecompressAmount(compressed_money_amount));
77        static const uint64_t compressed_money_amount_max = CompressAmount(MAX_MONEY - 1);
78        assert(compressed_money_amount <= compressed_money_amount_max);
79    } else {
80        (void)CompressAmount(u64);
81    }
82    constexpr uint256 u256_min{"0000000000000000000000000000000000000000000000000000000000000000"};
83    constexpr uint256 u256_max{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
84    std::vector v256{u256, u256_min, u256_max};
85    (void)ComputeMerkleRoot(std::move(v256));
86    (void)DecompressAmount(u64);
87    {
88        if (std::optional<CAmount> parsed = ParseMoney(FormatMoney(i64))) {
89            assert(parsed.value() == i64);
90        }
91    }
92    (void)GetSizeOfCompactSize(u64);
93    (void)GetSpecialScriptSize(u32);
94    if (!MultiplicationOverflow(i64, static_cast<int64_t>(u32)) && !AdditionOverflow(i64, static_cast<int64_t>(4)) && !AdditionOverflow(i64 * u32, static_cast<int64_t>(4))) {
95        (void)GetVirtualTransactionSize(i64, i64, u32);
96    }
97    (void)HexDigit(ch);
98    (void)MoneyRange(i64);
99    (void)ToString(i64);
100    (void)IsDigit(ch);
101    (void)IsSpace(ch);
102    (void)IsSwitchChar(ch);
103    (void)memusage::DynamicUsage(ch);
104    (void)memusage::DynamicUsage(i16);
105    (void)memusage::DynamicUsage(i32);
106    (void)memusage::DynamicUsage(i64);
107    (void)memusage::DynamicUsage(i8);
108    (void)memusage::DynamicUsage(u16);
109    (void)memusage::DynamicUsage(u32);
110    (void)memusage::DynamicUsage(u64);
111    (void)memusage::DynamicUsage(u8);
112    const unsigned char uch = static_cast<unsigned char>(u8);
113    (void)memusage::DynamicUsage(uch);
114    {
115        const std::set<int64_t> i64s{i64, static_cast<int64_t>(u64)};
116        const size_t dynamic_usage = memusage::DynamicUsage(i64s);
117        const size_t incremental_dynamic_usage = memusage::IncrementalDynamicUsage(i64s);
118        assert(dynamic_usage == incremental_dynamic_usage * i64s.size());
119    }
120    (void)MillisToTimeval(i64);
121    (void)SighashToStr(uch);
122    {
123        CSipHasher hasher{u64, u64_2};
124        const PresaltedSipHasher presalted_hasher{u64, u64_2};
125        hasher.Write(u256);
126        assert(presalted_hasher(u256) == hasher.Finalize());
127        uint8_t extra[4]{};
128        WriteLE32(extra, u32);
129        hasher.Write(extra);
130        assert(presalted_hasher(u256, u32) == hasher.Finalize());
131    }
132    {
133        const uint64_t data0{u160.GetUint64(0)}, data1{u160.GetUint64(1)};
134        SipHasher13UJ hasher{u64, u64_2};
135        const SipHasher13UJ fixed_hasher{u64, u64_2};
136        hasher.WriteJumbo(u256);
137        assert(fixed_hasher.Hash(u256) == hasher.Finalize());
138        hasher.Write(data0);
139        assert(fixed_hasher.Hash(u256, data0) == hasher.Finalize());
140
141        SipHasher13UJ reference{u64, u64_2};
142        SipHasher13UJ mixed{u64, u64_2};
143        reference.WriteJumbo(u256);
144        mixed.WriteJumbo(u256);
145
146        const auto write_normal{[](SipHasher13UJ& hasher, uint64_t data, bool as_jumbo) {
147            if (as_jumbo) {
148                uint256 data256{};
149                WriteLE64(data256.data(), data);
150                hasher.WriteJumbo(data256);
151            } else {
152                hasher.Write(data);
153            }
154        }};
155
156        reference.Write(data0).Write(data1);
157        write_normal(mixed, data0, b);
158        write_normal(mixed, data1, u8 & 1);
159        assert(mixed.Finalize() == reference.Finalize());
160
161        reference.WriteJumbo(u256).Write(data0);
162        assert(mixed.Hash(u256, data0) == reference.Finalize());
163    }
164    (void)ToLower(ch);
165    (void)ToUpper(ch);
166    {
167        if (std::optional<CAmount> parsed = ParseMoney(ValueFromAmount(i64).getValStr())) {
168            assert(parsed.value() == i64);
169        }
170    }
171    if (i32 >= 0 && i32 <= 16) {
172        assert(i32 == CScript::DecodeOP_N(CScript::EncodeOP_N(i32)));
173    }
174
175    const std::chrono::seconds seconds{i64};
176    assert(count_seconds(seconds) == i64);
177
178    const CScriptNum script_num{i64};
179    (void)script_num.getint();
180    (void)script_num.getvch();
181
182    const arith_uint256 au256 = UintToArith256(u256);
183    assert(ArithToUint256(au256) == u256);
184    assert(uint256::FromHex(au256.GetHex()).value() == u256);
185    (void)au256.bits();
186    (void)au256.GetCompact(/* fNegative= */ false);
187    (void)au256.GetCompact(/* fNegative= */ true);
188    (void)au256.getdouble();
189    (void)au256.GetHex();
190    (void)au256.GetLow64();
191    (void)au256.size();
192    (void)au256.ToString();
193
194    const CKeyID key_id{u160};
195    const CScriptID script_id{u160};
196
197    {
198        DataStream stream{};
199
200        uint256 deserialized_u256;
201        stream << u256;
202        stream >> deserialized_u256;
203        assert(u256 == deserialized_u256 && stream.empty());
204
205        uint160 deserialized_u160;
206        stream << u160;
207        stream >> deserialized_u160;
208        assert(u160 == deserialized_u160 && stream.empty());
209
210        uint64_t deserialized_u64;
211        stream << u64;
212        stream >> deserialized_u64;
213        assert(u64 == deserialized_u64 && stream.empty());
214
215        int64_t deserialized_i64;
216        stream << i64;
217        stream >> deserialized_i64;
218        assert(i64 == deserialized_i64 && stream.empty());
219
220        uint32_t deserialized_u32;
221        stream << u32;
222        stream >> deserialized_u32;
223        assert(u32 == deserialized_u32 && stream.empty());
224
225        int32_t deserialized_i32;
226        stream << i32;
227        stream >> deserialized_i32;
228        assert(i32 == deserialized_i32 && stream.empty());
229
230        uint16_t deserialized_u16;
231        stream << u16;
232        stream >> deserialized_u16;
233        assert(u16 == deserialized_u16 && stream.empty());
234
235        int16_t deserialized_i16;
236        stream << i16;
237        stream >> deserialized_i16;
238        assert(i16 == deserialized_i16 && stream.empty());
239
240        uint8_t deserialized_u8;
241        stream << u8;
242        stream >> deserialized_u8;
243        assert(u8 == deserialized_u8 && stream.empty());
244
245        int8_t deserialized_i8;
246        stream << i8;
247        stream >> deserialized_i8;
248        assert(i8 == deserialized_i8 && stream.empty());
249
250        bool deserialized_b;

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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