READ THE CODE

Inside Bitcoin

The code behind the network, with room to understand it.

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.

6,050 bytes · SHA-256 ff4322fcc27a37b6… · View upstream ↗

1// Copyright 2014 BitPay Inc.
2// Copyright (c) 2015-present The Bitcoin Core developers
3// Distributed under the MIT software license, see the accompanying
4// file COPYING or https://opensource.org/licenses/mit-license.php.
5
6#include <univalue.h>
7
8#include <univalue/test/fail1.json.h>
9#include <univalue/test/fail10.json.h>
10#include <univalue/test/fail11.json.h>
11#include <univalue/test/fail12.json.h>
12#include <univalue/test/fail13.json.h>
13#include <univalue/test/fail14.json.h>
14#include <univalue/test/fail15.json.h>
15#include <univalue/test/fail16.json.h>
16#include <univalue/test/fail17.json.h>
17#include <univalue/test/fail18.json.h>
18#include <univalue/test/fail19.json.h>
19#include <univalue/test/fail2.json.h>
20#include <univalue/test/fail20.json.h>
21#include <univalue/test/fail21.json.h>
22#include <univalue/test/fail22.json.h>
23#include <univalue/test/fail23.json.h>
24#include <univalue/test/fail24.json.h>
25#include <univalue/test/fail25.json.h>
26#include <univalue/test/fail26.json.h>
27#include <univalue/test/fail27.json.h>
28#include <univalue/test/fail28.json.h>
29#include <univalue/test/fail29.json.h>
30#include <univalue/test/fail3.json.h>
31#include <univalue/test/fail30.json.h>
32#include <univalue/test/fail31.json.h>
33#include <univalue/test/fail32.json.h>
34#include <univalue/test/fail33.json.h>
35#include <univalue/test/fail34.json.h>
36#include <univalue/test/fail35.json.h>
37#include <univalue/test/fail36.json.h>
38#include <univalue/test/fail37.json.h>
39#include <univalue/test/fail38.json.h>
40#include <univalue/test/fail39.json.h>
41#include <univalue/test/fail4.json.h>
42#include <univalue/test/fail40.json.h>
43#include <univalue/test/fail41.json.h>
44#include <univalue/test/fail42.json.h>
45#include <univalue/test/fail44.json.h>
46#include <univalue/test/fail45.json.h>
47#include <univalue/test/fail5.json.h>
48#include <univalue/test/fail6.json.h>
49#include <univalue/test/fail7.json.h>
50#include <univalue/test/fail8.json.h>
51#include <univalue/test/fail9.json.h>
52#include <univalue/test/pass1.json.h>
53#include <univalue/test/pass2.json.h>
54#include <univalue/test/pass3.json.h>
55#include <univalue/test/pass4.json.h>
56#include <univalue/test/round1.json.h>
57#include <univalue/test/round2.json.h>
58#include <univalue/test/round3.json.h>
59#include <univalue/test/round4.json.h>
60#include <univalue/test/round5.json.h>
61#include <univalue/test/round6.json.h>
62#include <univalue/test/round7.json.h>
63
64#include <array>
65#include <cassert>
66#include <string>
67#include <string_view>
68#include <tuple>
69
70static std::string rtrim(std::string s)
71{
72    s.erase(s.find_last_not_of(" \n\r\t") + 1);
73    return s;
74}
75
76static void runtest(std::string filename, const std::string& jdata)
77{
78    std::string prefix = filename.substr(0, 4);
79
80    bool wantPass = (prefix == "pass") || (prefix == "roun");
81    bool wantFail = (prefix == "fail");
82    bool wantRoundTrip = (prefix == "roun");
83    assert(wantPass || wantFail);
84
85    UniValue val;
86    bool testResult = val.read(jdata);
87
88    if (wantPass) {
89        assert(testResult == true);
90    } else {
91        assert(testResult == false);
92    }
93
94    if (wantRoundTrip) {
95        std::string odata = val.write(0, 0);
96        assert(odata == rtrim(jdata));
97    }
98}
99
100#define TEST_FILE(name) {#name, json_tests::name}
101inline constexpr std::array tests{std::to_array<std::tuple<std::string_view, std::string_view>>({
102    TEST_FILE(fail1),
103    TEST_FILE(fail10),
104    TEST_FILE(fail11),
105    TEST_FILE(fail12),
106    TEST_FILE(fail13),
107    TEST_FILE(fail14),
108    TEST_FILE(fail15),
109    TEST_FILE(fail16),
110    TEST_FILE(fail17),
111    TEST_FILE(fail18),
112    TEST_FILE(fail19),
113    TEST_FILE(fail2),
114    TEST_FILE(fail20),
115    TEST_FILE(fail21),
116    TEST_FILE(fail22),
117    TEST_FILE(fail23),
118    TEST_FILE(fail24),
119    TEST_FILE(fail25),
120    TEST_FILE(fail26),
121    TEST_FILE(fail27),
122    TEST_FILE(fail28),
123    TEST_FILE(fail29),
124    TEST_FILE(fail3),
125    TEST_FILE(fail30),
126    TEST_FILE(fail31),
127    TEST_FILE(fail32),
128    TEST_FILE(fail33),
129    TEST_FILE(fail34),
130    TEST_FILE(fail35),
131    TEST_FILE(fail36),
132    TEST_FILE(fail37),
133    TEST_FILE(fail38), // invalid unicode: only first half of surrogate pair
134    TEST_FILE(fail39), // invalid unicode: only second half of surrogate pair
135    TEST_FILE(fail4),  // extra comma
136    TEST_FILE(fail40), // invalid unicode: broken UTF-8
137    TEST_FILE(fail41), // invalid unicode: unfinished UTF-8
138    TEST_FILE(fail42), // valid json with garbage following a nul byte
139    TEST_FILE(fail44), // unterminated string
140    TEST_FILE(fail45), // nested beyond max depth
141    TEST_FILE(fail5),
142    TEST_FILE(fail6),
143    TEST_FILE(fail7),
144    TEST_FILE(fail8),
145    TEST_FILE(fail9), // extra comma
146    TEST_FILE(pass1),
147    TEST_FILE(pass2),
148    TEST_FILE(pass3),
149    TEST_FILE(pass4),
150    TEST_FILE(round1), // round-trip test
151    TEST_FILE(round2), // unicode
152    TEST_FILE(round3), // bare string
153    TEST_FILE(round4), // bare number
154    TEST_FILE(round5), // bare true
155    TEST_FILE(round6), // bare false
156    TEST_FILE(round7), // bare null
157})};
158
159// Test \u handling
160void unescape_unicode_test()
161{
162    UniValue val;
163    bool testResult;
164    // Escaped ASCII (quote)
165    testResult = val.read("[\"\\u0022\"]");
166    assert(testResult);
167    assert(val[0].get_str() == "\"");
168    // Escaped Basic Plane character, two-byte UTF-8
169    testResult = val.read("[\"\\u0191\"]");
170    assert(testResult);
171    assert(val[0].get_str() == "\xc6\x91");
172    // Escaped Basic Plane character, three-byte UTF-8
173    testResult = val.read("[\"\\u2191\"]");
174    assert(testResult);
175    assert(val[0].get_str() == "\xe2\x86\x91");
176    // Escaped Supplementary Plane character U+1d161
177    testResult = val.read("[\"\\ud834\\udd61\"]");
178    assert(testResult);
179    assert(val[0].get_str() == "\xf0\x9d\x85\xa1");
180}
181
182void no_nul_test()
183{
184    char buf[] = "___[1,2,3]___";
185    UniValue val;
186    assert(val.read({buf + 3, 7}));
187}
188
189int main(int argc, char* argv[])
190{
191    for (const auto& [file, json] : tests) {
192        runtest(std::string{file}, std::string{json});
193    }
194
195    unescape_unicode_test();
196    no_nul_test();
197
198    return 0;
199}
200

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

Independent explanations by MyBitcoinExplorer. Not affiliated with or endorsed by Bitcoin Core. Guides are educational and do not replace the source or its tests.

Bitcoin Core source © its contributors, distributed under the MIT license. Original notices and bundled third-party licenses are retained in the source tree.