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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.

bitcoin / bitcoinstable

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▤ threadinterrupt.cpp

▤ threadinterrupt.h

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bitcoin / src / test / fuzz / util / net.cpp

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15,524 bytes · SHA-256 df547390600afa81… · View upstream ↗

251    };
252    if (m_fuzzed_data_provider.ConsumeBool()) {
253        SetFuzzedErrNo(m_fuzzed_data_provider, connect_errnos);
254        return -1;
255    }
256    return 0;
257}
258
259int FuzzedSock::Bind(const sockaddr*, socklen_t) const
260{
261    // Have a permanent error at bind_errnos[0] because when the fuzzed data is exhausted
262    // SetFuzzedErrNo() will always set the global errno to bind_errnos[0]. We want to
263    // avoid this method returning -1 and setting errno to a temporary error (like EAGAIN)
264    // repeatedly because proper code should retry on temporary errors, leading to an
265    // infinite loop.
266    constexpr std::array bind_errnos{
267        EACCES,
268        EADDRINUSE,
269        EADDRNOTAVAIL,
270        EAGAIN,
271    };
272    if (m_fuzzed_data_provider.ConsumeBool()) {
273        SetFuzzedErrNo(m_fuzzed_data_provider, bind_errnos);
274        return -1;
275    }
276    return 0;
277}
278
279int FuzzedSock::Listen(int) const
280{
281    // Have a permanent error at listen_errnos[0] because when the fuzzed data is exhausted
282    // SetFuzzedErrNo() will always set the global errno to listen_errnos[0]. We want to
283    // avoid this method returning -1 and setting errno to a temporary error (like EAGAIN)
284    // repeatedly because proper code should retry on temporary errors, leading to an
285    // infinite loop.
286    constexpr std::array listen_errnos{
287        EADDRINUSE,
288        EINVAL,
289        EOPNOTSUPP,
290    };
291    if (m_fuzzed_data_provider.ConsumeBool()) {
292        SetFuzzedErrNo(m_fuzzed_data_provider, listen_errnos);
293        return -1;
294    }
295    return 0;
296}
297
298std::unique_ptr<Sock> FuzzedSock::Accept(sockaddr* addr, socklen_t* addr_len) const
299{
300    constexpr std::array accept_errnos{
301        ECONNABORTED,
302        EINTR,
303        ENOMEM,
304    };
305    if (m_fuzzed_data_provider.ConsumeBool()) {
306        SetFuzzedErrNo(m_fuzzed_data_provider, accept_errnos);
307        return std::unique_ptr<FuzzedSock>();
308    }
309    if (addr != nullptr) {
310        // Set a fuzzed address in the output argument addr.
311        memset(addr, 0x00, *addr_len);
312        if (m_fuzzed_data_provider.ConsumeBool()) {
313            // IPv4
314            const socklen_t write_len = static_cast<socklen_t>(sizeof(sockaddr_in));
315            if (*addr_len >= write_len) {
316                *addr_len = write_len;
317                auto addr4 = reinterpret_cast<sockaddr_in*>(addr);
318                addr4->sin_family = AF_INET;
319                const auto sin_addr_bytes{m_fuzzed_data_provider.ConsumeBytes<std::byte>(sizeof(addr4->sin_addr))};
320                std::ranges::copy(sin_addr_bytes, reinterpret_cast<std::byte*>(&addr4->sin_addr));
321                addr4->sin_port = m_fuzzed_data_provider.ConsumeIntegralInRange<uint16_t>(1, 65535);
322            }
323        } else {
324            // IPv6
325            const socklen_t write_len = static_cast<socklen_t>(sizeof(sockaddr_in6));
326            if (*addr_len >= write_len) {
327                *addr_len = write_len;
328                auto addr6 = reinterpret_cast<sockaddr_in6*>(addr);
329                addr6->sin6_family = AF_INET6;
330                const auto sin_addr_bytes{m_fuzzed_data_provider.ConsumeBytes<std::byte>(sizeof(addr6->sin6_addr))};
331                std::ranges::copy(sin_addr_bytes, reinterpret_cast<std::byte*>(&addr6->sin6_addr));
332                addr6->sin6_port = m_fuzzed_data_provider.ConsumeIntegralInRange<uint16_t>(1, 65535);
333            }
334        }
335    }
336    return std::make_unique<FuzzedSock>(m_fuzzed_data_provider, m_clock);
337}
338
339int FuzzedSock::GetSockOpt(int level, int opt_name, void* opt_val, socklen_t* opt_len) const
340{
341    constexpr std::array getsockopt_errnos{
342        ENOMEM,
343        ENOBUFS,
344    };
345    if (m_fuzzed_data_provider.ConsumeBool()) {
346        SetFuzzedErrNo(m_fuzzed_data_provider, getsockopt_errnos);
347        return -1;
348    }
349    if (opt_val == nullptr) {
350        return 0;
351    }
352    std::memcpy(opt_val,
353                ConsumeFixedLengthByteVector(m_fuzzed_data_provider, *opt_len).data(),
354                *opt_len);
355    return 0;
356}
357
358int FuzzedSock::SetSockOpt(int, int, const void*, socklen_t) const
359{
360    constexpr std::array setsockopt_errnos{
361        ENOMEM,
362        ENOBUFS,
363    };
364    if (m_fuzzed_data_provider.ConsumeBool()) {
365        SetFuzzedErrNo(m_fuzzed_data_provider, setsockopt_errnos);
366        return -1;
367    }
368    return 0;
369}
370
371int FuzzedSock::GetSockName(sockaddr* name, socklen_t* name_len) const
372{
373    constexpr std::array getsockname_errnos{
374        ECONNRESET,
375        ENOBUFS,
376    };
377    if (m_fuzzed_data_provider.ConsumeBool()) {
378        SetFuzzedErrNo(m_fuzzed_data_provider, getsockname_errnos);
379        return -1;
380    }
381    assert(name_len);
382    const auto bytes{ConsumeRandomLengthByteVector(m_fuzzed_data_provider, *name_len)};
383    if (bytes.size() < (int)sizeof(sockaddr)) return -1;
384    std::memcpy(name, bytes.data(), bytes.size());
385    *name_len = bytes.size();
386    return 0;
387}
388
389bool FuzzedSock::SetNonBlocking() const
390{
391    constexpr std::array setnonblocking_errnos{
392        EBADF,
393        EPERM,
394    };
395    if (m_fuzzed_data_provider.ConsumeBool()) {
396        SetFuzzedErrNo(m_fuzzed_data_provider, setnonblocking_errnos);
397        return false;
398    }
399    return true;
400}
401
402bool FuzzedSock::IsSelectable() const
403{
404    return m_selectable;
405}
406
407bool FuzzedSock::Wait(std::chrono::milliseconds timeout, Event requested, Event* occurred) const
408{
409    constexpr std::array wait_errnos{
410        EBADF,
411        EINTR,
412        EINVAL,
413    };
414    if (m_fuzzed_data_provider.ConsumeBool()) {
415        SetFuzzedErrNo(m_fuzzed_data_provider, wait_errnos);
416        return false;
417    }
418    if (occurred != nullptr) {
419        // We simulate the requested event as occurred when ConsumeBool()
420        // returns false. This avoids simulating endless waiting if the
421        // FuzzedDataProvider runs out of data.
422        *occurred = m_fuzzed_data_provider.ConsumeBool() ? 0 : requested;
423    }
424    m_clock += timeout;
425    return true;
426}
427
428bool FuzzedSock::WaitMany(std::chrono::milliseconds timeout, EventsPerSock& events_per_sock) const
429{
430    for (auto& [sock, events] : events_per_sock) {
431        (void)sock;
432        // We simulate the requested event as occurred when ConsumeBool()
433        // returns false. This avoids simulating endless waiting if the
434        // FuzzedDataProvider runs out of data.
435        events.occurred = m_fuzzed_data_provider.ConsumeBool() ? 0 : events.requested;
436    }
437    m_clock += timeout;
438    return true;
439}
440
441bool FuzzedSock::IsConnected(std::string& errmsg) const
442{
443    if (m_fuzzed_data_provider.ConsumeBool()) {
444        return true;
445    }
446    errmsg = "disconnected at random by the fuzzer";
447    return false;
448}
449
450void FillNode(FuzzedDataProvider& fuzzed_data_provider, ConnmanTestMsg& connman, CNode& node) noexcept
451{
452    auto successfully_connected = fuzzed_data_provider.ConsumeBool();
453    auto remote_services = ConsumeWeakEnum(fuzzed_data_provider, ALL_SERVICE_FLAGS);
454    auto local_services = ConsumeWeakEnum(fuzzed_data_provider, ALL_SERVICE_FLAGS);
455    auto version = fuzzed_data_provider.ConsumeIntegralInRange<int32_t>(MIN_PEER_PROTO_VERSION, std::numeric_limits<int32_t>::max());
456    auto relay_txs = fuzzed_data_provider.ConsumeBool();
457    connman.Handshake(node, successfully_connected, remote_services, local_services, version, relay_txs);
458}
459

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440 guided files · 2,580 pending. Guides cover key sections, not every line.

cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

← Previous 250 linesCode page 2

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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