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

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1// Copyright (c) 2009-2010 Satoshi Nakamoto
2// Copyright (c) 2009-present The Bitcoin Core developers
3// Distributed under the MIT software license, see the accompanying
4// file COPYING or http://www.opensource.org/licenses/mit-license.php.
5
6#ifndef BITCOIN_TEST_SCRIPTNUM10_H
7#define BITCOIN_TEST_SCRIPTNUM10_H
8
9#include <cassert>
10#include <cstdint>
11#include <limits>
12#include <stdexcept>
13#include <string>
14#include <vector>
15
16class scriptnum10_error : public std::runtime_error
17{
18public:
19    explicit scriptnum10_error(const std::string& str) : std::runtime_error(str) {}
20};
21
22class CScriptNum10
23{
24/**
25 * The ScriptNum implementation from Bitcoin Core 0.10.0, for cross-comparison.
26 */
27public:
28
29    explicit CScriptNum10(const int64_t& n)
30    {
31        m_value = n;
32    }
33
34    static constexpr size_t nDefaultMaxNumSize{4};
35
36    explicit CScriptNum10(const std::vector<unsigned char>& vch, bool fRequireMinimal,
37                        const size_t nMaxNumSize = nDefaultMaxNumSize)
38    {
39        if (vch.size() > nMaxNumSize) {
40            throw scriptnum10_error("script number overflow");
41        }
42        if (fRequireMinimal && vch.size() > 0) {
43            // Check that the number is encoded with the minimum possible
44            // number of bytes.
45            //
46            // If the most-significant-byte - excluding the sign bit - is zero
47            // then we're not minimal. Note how this test also rejects the
48            // negative-zero encoding, 0x80.
49            if ((vch.back() & 0x7f) == 0) {
50                // One exception: if there's more than one byte and the most
51                // significant bit of the second-most-significant-byte is set
52                // it would conflict with the sign bit. An example of this case
53                // is +-255, which encode to 0xff00 and 0xff80 respectively.
54                // (big-endian).
55                if (vch.size() <= 1 || (vch[vch.size() - 2] & 0x80) == 0) {
56                    throw scriptnum10_error("non-minimally encoded script number");
57                }
58            }
59        }
60        m_value = set_vch(vch);
61    }
62
63    inline bool operator==(const int64_t& rhs) const    { return m_value == rhs; }
64    inline auto operator<=>(const int64_t& rhs) const    { return m_value <=> rhs; }
65
66    inline bool operator==(const CScriptNum10& rhs) const { return operator==(rhs.m_value); }
67    inline auto operator<=>(const CScriptNum10& rhs) const { return operator<=>(rhs.m_value); }
68
69    inline CScriptNum10 operator+(   const int64_t& rhs)    const { return CScriptNum10(m_value + rhs);}
70    inline CScriptNum10 operator-(   const int64_t& rhs)    const { return CScriptNum10(m_value - rhs);}
71    inline CScriptNum10 operator+(   const CScriptNum10& rhs) const { return operator+(rhs.m_value);   }
72    inline CScriptNum10 operator-(   const CScriptNum10& rhs) const { return operator-(rhs.m_value);   }
73
74    inline CScriptNum10& operator+=( const CScriptNum10& rhs)       { return operator+=(rhs.m_value);  }
75    inline CScriptNum10& operator-=( const CScriptNum10& rhs)       { return operator-=(rhs.m_value);  }
76
77    inline CScriptNum10 operator-()                         const
78    {
79        assert(m_value != std::numeric_limits<int64_t>::min());
80        return CScriptNum10(-m_value);
81    }
82
83    inline CScriptNum10& operator=( const int64_t& rhs)
84    {
85        m_value = rhs;
86        return *this;
87    }
88
89    inline CScriptNum10& operator+=( const int64_t& rhs)
90    {
91        assert(rhs == 0 || (rhs > 0 && m_value <= std::numeric_limits<int64_t>::max() - rhs) ||
92                           (rhs < 0 && m_value >= std::numeric_limits<int64_t>::min() - rhs));
93        m_value += rhs;
94        return *this;
95    }
96
97    inline CScriptNum10& operator-=( const int64_t& rhs)
98    {
99        assert(rhs == 0 || (rhs > 0 && m_value >= std::numeric_limits<int64_t>::min() + rhs) ||
100                           (rhs < 0 && m_value <= std::numeric_limits<int64_t>::max() + rhs));
101        m_value -= rhs;
102        return *this;
103    }
104
105    int getint() const
106    {
107        if (m_value > std::numeric_limits<int>::max())
108            return std::numeric_limits<int>::max();
109        else if (m_value < std::numeric_limits<int>::min())
110            return std::numeric_limits<int>::min();
111        return m_value;
112    }
113
114    std::vector<unsigned char> getvch() const
115    {
116        return serialize(m_value);
117    }
118
119    static std::vector<unsigned char> serialize(const int64_t& value)
120    {
121        if(value == 0)
122            return std::vector<unsigned char>();
123
124        std::vector<unsigned char> result;
125        const bool neg = value < 0;
126        uint64_t absvalue = neg ? -value : value;
127
128        while(absvalue)
129        {
130            result.push_back(absvalue & 0xff);
131            absvalue >>= 8;
132        }
133
134//    - If the most significant byte is >= 0x80 and the value is positive, push a
135//    new zero-byte to make the significant byte < 0x80 again.
136
137//    - If the most significant byte is >= 0x80 and the value is negative, push a
138//    new 0x80 byte that will be popped off when converting to an integral.
139
140//    - If the most significant byte is < 0x80 and the value is negative, add
141//    0x80 to it, since it will be subtracted and interpreted as a negative when
142//    converting to an integral.
143
144        if (result.back() & 0x80)
145            result.push_back(neg ? 0x80 : 0);
146        else if (neg)
147            result.back() |= 0x80;
148
149        return result;
150    }
151
152private:
153    static int64_t set_vch(const std::vector<unsigned char>& vch)
154    {
155      if (vch.empty())
156          return 0;
157
158      int64_t result = 0;
159      for (size_t i = 0; i != vch.size(); ++i)
160          result |= static_cast<int64_t>(vch[i]) << 8*i;
161
162      // If the input vector's most significant byte is 0x80, remove it from
163      // the result's msb and return a negative.
164      if (vch.back() & 0x80)
165          return -((int64_t)(result & ~(0x80ULL << (8 * (vch.size() - 1)))));
166
167      return result;
168    }
169
170    int64_t m_value;
171};
172
173
174#endif // BITCOIN_TEST_SCRIPTNUM10_H
175

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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