mirror of
https://github.com/dashpay/dash.git
synced 2024-12-27 04:52:59 +01:00
Merge pull request #7095
4ec3561 Replace scriptnum_test's normative ScriptNum implementation (Wladimir J. van der Laan)This commit is contained in:
Wladimir J. van der Laan
commit
d8368a07ba
@ -35,7 +35,7 @@ GENERATED_TEST_FILES = $(JSON_TEST_FILES:.json=.json.h) $(RAW_TEST_FILES:.raw=.r
|
||||
|
||||
BITCOIN_TESTS =\
|
||||
test/arith_uint256_tests.cpp \
|
||||
test/bignum.h \
|
||||
test/scriptnum10.h \
|
||||
test/addrman_tests.cpp \
|
||||
test/alert_tests.cpp \
|
||||
test/allocator_tests.cpp \
|
||||
|
||||
@ -1,180 +0,0 @@
|
||||
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
||||
// Copyright (c) 2009-2013 The Bitcoin Core developers
|
||||
// Distributed under the MIT software license, see the accompanying
|
||||
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
||||
|
||||
#ifndef BITCOIN_TEST_BIGNUM_H
|
||||
#define BITCOIN_TEST_BIGNUM_H
|
||||
|
||||
#include <algorithm>
|
||||
#include <limits>
|
||||
#include <stdexcept>
|
||||
#include <stdint.h>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
|
||||
#include <openssl/bn.h>
|
||||
|
||||
class bignum_error : public std::runtime_error
|
||||
{
|
||||
public:
|
||||
explicit bignum_error(const std::string& str) : std::runtime_error(str) {}
|
||||
};
|
||||
|
||||
|
||||
/** C++ wrapper for BIGNUM (OpenSSL bignum) */
|
||||
class CBigNum : public BIGNUM
|
||||
{
|
||||
public:
|
||||
CBigNum()
|
||||
{
|
||||
BN_init(this);
|
||||
}
|
||||
|
||||
CBigNum(const CBigNum& b)
|
||||
{
|
||||
BN_init(this);
|
||||
if (!BN_copy(this, &b))
|
||||
{
|
||||
BN_clear_free(this);
|
||||
throw bignum_error("CBigNum::CBigNum(const CBigNum&): BN_copy failed");
|
||||
}
|
||||
}
|
||||
|
||||
CBigNum& operator=(const CBigNum& b)
|
||||
{
|
||||
if (!BN_copy(this, &b))
|
||||
throw bignum_error("CBigNum::operator=: BN_copy failed");
|
||||
return (*this);
|
||||
}
|
||||
|
||||
~CBigNum()
|
||||
{
|
||||
BN_clear_free(this);
|
||||
}
|
||||
|
||||
CBigNum(long long n) { BN_init(this); setint64(n); }
|
||||
|
||||
explicit CBigNum(const std::vector<unsigned char>& vch)
|
||||
{
|
||||
BN_init(this);
|
||||
setvch(vch);
|
||||
}
|
||||
|
||||
int getint() const
|
||||
{
|
||||
BN_ULONG n = BN_get_word(this);
|
||||
if (!BN_is_negative(this))
|
||||
return (n > (BN_ULONG)std::numeric_limits<int>::max() ? std::numeric_limits<int>::max() : n);
|
||||
else
|
||||
return (n > (BN_ULONG)std::numeric_limits<int>::max() ? std::numeric_limits<int>::min() : -(int)n);
|
||||
}
|
||||
|
||||
void setint64(int64_t sn)
|
||||
{
|
||||
unsigned char pch[sizeof(sn) + 6];
|
||||
unsigned char* p = pch + 4;
|
||||
bool fNegative;
|
||||
uint64_t n;
|
||||
|
||||
if (sn < (int64_t)0)
|
||||
{
|
||||
// Since the minimum signed integer cannot be represented as positive so long as its type is signed,
|
||||
// and it's not well-defined what happens if you make it unsigned before negating it,
|
||||
// we instead increment the negative integer by 1, convert it, then increment the (now positive) unsigned integer by 1 to compensate
|
||||
n = -(sn + 1);
|
||||
++n;
|
||||
fNegative = true;
|
||||
} else {
|
||||
n = sn;
|
||||
fNegative = false;
|
||||
}
|
||||
|
||||
bool fLeadingZeroes = true;
|
||||
for (int i = 0; i < 8; i++)
|
||||
{
|
||||
unsigned char c = (n >> 56) & 0xff;
|
||||
n <<= 8;
|
||||
if (fLeadingZeroes)
|
||||
{
|
||||
if (c == 0)
|
||||
continue;
|
||||
if (c & 0x80)
|
||||
*p++ = (fNegative ? 0x80 : 0);
|
||||
else if (fNegative)
|
||||
c |= 0x80;
|
||||
fLeadingZeroes = false;
|
||||
}
|
||||
*p++ = c;
|
||||
}
|
||||
unsigned int nSize = p - (pch + 4);
|
||||
pch[0] = (nSize >> 24) & 0xff;
|
||||
pch[1] = (nSize >> 16) & 0xff;
|
||||
pch[2] = (nSize >> 8) & 0xff;
|
||||
pch[3] = (nSize) & 0xff;
|
||||
BN_mpi2bn(pch, p - pch, this);
|
||||
}
|
||||
|
||||
void setvch(const std::vector<unsigned char>& vch)
|
||||
{
|
||||
std::vector<unsigned char> vch2(vch.size() + 4);
|
||||
unsigned int nSize = vch.size();
|
||||
// BIGNUM's byte stream format expects 4 bytes of
|
||||
// big endian size data info at the front
|
||||
vch2[0] = (nSize >> 24) & 0xff;
|
||||
vch2[1] = (nSize >> 16) & 0xff;
|
||||
vch2[2] = (nSize >> 8) & 0xff;
|
||||
vch2[3] = (nSize >> 0) & 0xff;
|
||||
// swap data to big endian
|
||||
reverse_copy(vch.begin(), vch.end(), vch2.begin() + 4);
|
||||
BN_mpi2bn(&vch2[0], vch2.size(), this);
|
||||
}
|
||||
|
||||
std::vector<unsigned char> getvch() const
|
||||
{
|
||||
unsigned int nSize = BN_bn2mpi(this, NULL);
|
||||
if (nSize <= 4)
|
||||
return std::vector<unsigned char>();
|
||||
std::vector<unsigned char> vch(nSize);
|
||||
BN_bn2mpi(this, &vch[0]);
|
||||
vch.erase(vch.begin(), vch.begin() + 4);
|
||||
reverse(vch.begin(), vch.end());
|
||||
return vch;
|
||||
}
|
||||
|
||||
friend inline const CBigNum operator-(const CBigNum& a, const CBigNum& b);
|
||||
};
|
||||
|
||||
|
||||
|
||||
inline const CBigNum operator+(const CBigNum& a, const CBigNum& b)
|
||||
{
|
||||
CBigNum r;
|
||||
if (!BN_add(&r, &a, &b))
|
||||
throw bignum_error("CBigNum::operator+: BN_add failed");
|
||||
return r;
|
||||
}
|
||||
|
||||
inline const CBigNum operator-(const CBigNum& a, const CBigNum& b)
|
||||
{
|
||||
CBigNum r;
|
||||
if (!BN_sub(&r, &a, &b))
|
||||
throw bignum_error("CBigNum::operator-: BN_sub failed");
|
||||
return r;
|
||||
}
|
||||
|
||||
inline const CBigNum operator-(const CBigNum& a)
|
||||
{
|
||||
CBigNum r(a);
|
||||
BN_set_negative(&r, !BN_is_negative(&r));
|
||||
return r;
|
||||
}
|
||||
|
||||
inline bool operator==(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) == 0); }
|
||||
inline bool operator!=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) != 0); }
|
||||
inline bool operator<=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) <= 0); }
|
||||
inline bool operator>=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) >= 0); }
|
||||
inline bool operator<(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) < 0); }
|
||||
inline bool operator>(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) > 0); }
|
||||
|
||||
#endif // BITCOIN_TEST_BIGNUM_H
|
||||
183
src/test/scriptnum10.h
Normal file
183
src/test/scriptnum10.h
Normal file
@ -0,0 +1,183 @@
|
||||
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
||||
// Copyright (c) 2009-2013 The Bitcoin Core developers
|
||||
// Distributed under the MIT software license, see the accompanying
|
||||
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
||||
|
||||
#ifndef BITCOIN_TEST_SCRIPTNUM10_H
|
||||
#define BITCOIN_TEST_SCRIPTNUM10_H
|
||||
|
||||
#include <algorithm>
|
||||
#include <limits>
|
||||
#include <stdexcept>
|
||||
#include <stdint.h>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
#include "assert.h"
|
||||
|
||||
class scriptnum10_error : public std::runtime_error
|
||||
{
|
||||
public:
|
||||
explicit scriptnum10_error(const std::string& str) : std::runtime_error(str) {}
|
||||
};
|
||||
|
||||
class CScriptNum10
|
||||
{
|
||||
/**
|
||||
* The ScriptNum implementation from Bitcoin Core 0.10.0, for cross-comparison.
|
||||
*/
|
||||
public:
|
||||
|
||||
explicit CScriptNum10(const int64_t& n)
|
||||
{
|
||||
m_value = n;
|
||||
}
|
||||
|
||||
static const size_t nDefaultMaxNumSize = 4;
|
||||
|
||||
explicit CScriptNum10(const std::vector<unsigned char>& vch, bool fRequireMinimal,
|
||||
const size_t nMaxNumSize = nDefaultMaxNumSize)
|
||||
{
|
||||
if (vch.size() > nMaxNumSize) {
|
||||
throw scriptnum10_error("script number overflow");
|
||||
}
|
||||
if (fRequireMinimal && vch.size() > 0) {
|
||||
// Check that the number is encoded with the minimum possible
|
||||
// number of bytes.
|
||||
//
|
||||
// If the most-significant-byte - excluding the sign bit - is zero
|
||||
// then we're not minimal. Note how this test also rejects the
|
||||
// negative-zero encoding, 0x80.
|
||||
if ((vch.back() & 0x7f) == 0) {
|
||||
// One exception: if there's more than one byte and the most
|
||||
// significant bit of the second-most-significant-byte is set
|
||||
// it would conflict with the sign bit. An example of this case
|
||||
// is +-255, which encode to 0xff00 and 0xff80 respectively.
|
||||
// (big-endian).
|
||||
if (vch.size() <= 1 || (vch[vch.size() - 2] & 0x80) == 0) {
|
||||
throw scriptnum10_error("non-minimally encoded script number");
|
||||
}
|
||||
}
|
||||
}
|
||||
m_value = set_vch(vch);
|
||||
}
|
||||
|
||||
inline bool operator==(const int64_t& rhs) const { return m_value == rhs; }
|
||||
inline bool operator!=(const int64_t& rhs) const { return m_value != rhs; }
|
||||
inline bool operator<=(const int64_t& rhs) const { return m_value <= rhs; }
|
||||
inline bool operator< (const int64_t& rhs) const { return m_value < rhs; }
|
||||
inline bool operator>=(const int64_t& rhs) const { return m_value >= rhs; }
|
||||
inline bool operator> (const int64_t& rhs) const { return m_value > rhs; }
|
||||
|
||||
inline bool operator==(const CScriptNum10& rhs) const { return operator==(rhs.m_value); }
|
||||
inline bool operator!=(const CScriptNum10& rhs) const { return operator!=(rhs.m_value); }
|
||||
inline bool operator<=(const CScriptNum10& rhs) const { return operator<=(rhs.m_value); }
|
||||
inline bool operator< (const CScriptNum10& rhs) const { return operator< (rhs.m_value); }
|
||||
inline bool operator>=(const CScriptNum10& rhs) const { return operator>=(rhs.m_value); }
|
||||
inline bool operator> (const CScriptNum10& rhs) const { return operator> (rhs.m_value); }
|
||||
|
||||
inline CScriptNum10 operator+( const int64_t& rhs) const { return CScriptNum10(m_value + rhs);}
|
||||
inline CScriptNum10 operator-( const int64_t& rhs) const { return CScriptNum10(m_value - rhs);}
|
||||
inline CScriptNum10 operator+( const CScriptNum10& rhs) const { return operator+(rhs.m_value); }
|
||||
inline CScriptNum10 operator-( const CScriptNum10& rhs) const { return operator-(rhs.m_value); }
|
||||
|
||||
inline CScriptNum10& operator+=( const CScriptNum10& rhs) { return operator+=(rhs.m_value); }
|
||||
inline CScriptNum10& operator-=( const CScriptNum10& rhs) { return operator-=(rhs.m_value); }
|
||||
|
||||
inline CScriptNum10 operator-() const
|
||||
{
|
||||
assert(m_value != std::numeric_limits<int64_t>::min());
|
||||
return CScriptNum10(-m_value);
|
||||
}
|
||||
|
||||
inline CScriptNum10& operator=( const int64_t& rhs)
|
||||
{
|
||||
m_value = rhs;
|
||||
return *this;
|
||||
}
|
||||
|
||||
inline CScriptNum10& operator+=( const int64_t& rhs)
|
||||
{
|
||||
assert(rhs == 0 || (rhs > 0 && m_value <= std::numeric_limits<int64_t>::max() - rhs) ||
|
||||
(rhs < 0 && m_value >= std::numeric_limits<int64_t>::min() - rhs));
|
||||
m_value += rhs;
|
||||
return *this;
|
||||
}
|
||||
|
||||
inline CScriptNum10& operator-=( const int64_t& rhs)
|
||||
{
|
||||
assert(rhs == 0 || (rhs > 0 && m_value >= std::numeric_limits<int64_t>::min() + rhs) ||
|
||||
(rhs < 0 && m_value <= std::numeric_limits<int64_t>::max() + rhs));
|
||||
m_value -= rhs;
|
||||
return *this;
|
||||
}
|
||||
|
||||
int getint() const
|
||||
{
|
||||
if (m_value > std::numeric_limits<int>::max())
|
||||
return std::numeric_limits<int>::max();
|
||||
else if (m_value < std::numeric_limits<int>::min())
|
||||
return std::numeric_limits<int>::min();
|
||||
return m_value;
|
||||
}
|
||||
|
||||
std::vector<unsigned char> getvch() const
|
||||
{
|
||||
return serialize(m_value);
|
||||
}
|
||||
|
||||
static std::vector<unsigned char> serialize(const int64_t& value)
|
||||
{
|
||||
if(value == 0)
|
||||
return std::vector<unsigned char>();
|
||||
|
||||
std::vector<unsigned char> result;
|
||||
const bool neg = value < 0;
|
||||
uint64_t absvalue = neg ? -value : value;
|
||||
|
||||
while(absvalue)
|
||||
{
|
||||
result.push_back(absvalue & 0xff);
|
||||
absvalue >>= 8;
|
||||
}
|
||||
|
||||
// - If the most significant byte is >= 0x80 and the value is positive, push a
|
||||
// new zero-byte to make the significant byte < 0x80 again.
|
||||
|
||||
// - If the most significant byte is >= 0x80 and the value is negative, push a
|
||||
// new 0x80 byte that will be popped off when converting to an integral.
|
||||
|
||||
// - If the most significant byte is < 0x80 and the value is negative, add
|
||||
// 0x80 to it, since it will be subtracted and interpreted as a negative when
|
||||
// converting to an integral.
|
||||
|
||||
if (result.back() & 0x80)
|
||||
result.push_back(neg ? 0x80 : 0);
|
||||
else if (neg)
|
||||
result.back() |= 0x80;
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
private:
|
||||
static int64_t set_vch(const std::vector<unsigned char>& vch)
|
||||
{
|
||||
if (vch.empty())
|
||||
return 0;
|
||||
|
||||
int64_t result = 0;
|
||||
for (size_t i = 0; i != vch.size(); ++i)
|
||||
result |= static_cast<int64_t>(vch[i]) << 8*i;
|
||||
|
||||
// If the input vector's most significant byte is 0x80, remove it from
|
||||
// the result's msb and return a negative.
|
||||
if (vch.back() & 0x80)
|
||||
return -((int64_t)(result & ~(0x80ULL << (8 * (vch.size() - 1)))));
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
int64_t m_value;
|
||||
};
|
||||
|
||||
|
||||
#endif // BITCOIN_TEST_BIGNUM_H
|
||||
@ -2,7 +2,7 @@
|
||||
// Distributed under the MIT software license, see the accompanying
|
||||
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
||||
|
||||
#include "bignum.h"
|
||||
#include "scriptnum10.h"
|
||||
#include "script/script.h"
|
||||
#include "test/test_bitcoin.h"
|
||||
|
||||
@ -16,45 +16,48 @@ static const int64_t values[] = \
|
||||
{ 0, 1, CHAR_MIN, CHAR_MAX, UCHAR_MAX, SHRT_MIN, USHRT_MAX, INT_MIN, INT_MAX, UINT_MAX, LONG_MIN, LONG_MAX };
|
||||
static const int64_t offsets[] = { 1, 0x79, 0x80, 0x81, 0xFF, 0x7FFF, 0x8000, 0xFFFF, 0x10000};
|
||||
|
||||
static bool verify(const CBigNum& bignum, const CScriptNum& scriptnum)
|
||||
static bool verify(const CScriptNum10& bignum, const CScriptNum& scriptnum)
|
||||
{
|
||||
return bignum.getvch() == scriptnum.getvch() && bignum.getint() == scriptnum.getint();
|
||||
}
|
||||
|
||||
static void CheckCreateVch(const int64_t& num)
|
||||
{
|
||||
CBigNum bignum(num);
|
||||
CScriptNum10 bignum(num);
|
||||
CScriptNum scriptnum(num);
|
||||
BOOST_CHECK(verify(bignum, scriptnum));
|
||||
|
||||
CBigNum bignum2(bignum.getvch());
|
||||
std::vector<unsigned char> vch = bignum.getvch();
|
||||
|
||||
CScriptNum10 bignum2(bignum.getvch(), false);
|
||||
vch = scriptnum.getvch();
|
||||
CScriptNum scriptnum2(scriptnum.getvch(), false);
|
||||
BOOST_CHECK(verify(bignum2, scriptnum2));
|
||||
|
||||
CBigNum bignum3(scriptnum2.getvch());
|
||||
CScriptNum10 bignum3(scriptnum2.getvch(), false);
|
||||
CScriptNum scriptnum3(bignum2.getvch(), false);
|
||||
BOOST_CHECK(verify(bignum3, scriptnum3));
|
||||
}
|
||||
|
||||
static void CheckCreateInt(const int64_t& num)
|
||||
{
|
||||
CBigNum bignum(num);
|
||||
CScriptNum10 bignum(num);
|
||||
CScriptNum scriptnum(num);
|
||||
BOOST_CHECK(verify(bignum, scriptnum));
|
||||
BOOST_CHECK(verify(bignum.getint(), CScriptNum(scriptnum.getint())));
|
||||
BOOST_CHECK(verify(scriptnum.getint(), CScriptNum(bignum.getint())));
|
||||
BOOST_CHECK(verify(CBigNum(scriptnum.getint()).getint(), CScriptNum(CScriptNum(bignum.getint()).getint())));
|
||||
BOOST_CHECK(verify(CScriptNum10(bignum.getint()), CScriptNum(scriptnum.getint())));
|
||||
BOOST_CHECK(verify(CScriptNum10(scriptnum.getint()), CScriptNum(bignum.getint())));
|
||||
BOOST_CHECK(verify(CScriptNum10(CScriptNum10(scriptnum.getint()).getint()), CScriptNum(CScriptNum(bignum.getint()).getint())));
|
||||
}
|
||||
|
||||
|
||||
static void CheckAdd(const int64_t& num1, const int64_t& num2)
|
||||
{
|
||||
const CBigNum bignum1(num1);
|
||||
const CBigNum bignum2(num2);
|
||||
const CScriptNum10 bignum1(num1);
|
||||
const CScriptNum10 bignum2(num2);
|
||||
const CScriptNum scriptnum1(num1);
|
||||
const CScriptNum scriptnum2(num2);
|
||||
CBigNum bignum3(num1);
|
||||
CBigNum bignum4(num1);
|
||||
CScriptNum10 bignum3(num1);
|
||||
CScriptNum10 bignum4(num1);
|
||||
CScriptNum scriptnum3(num1);
|
||||
CScriptNum scriptnum4(num1);
|
||||
|
||||
@ -71,7 +74,7 @@ static void CheckAdd(const int64_t& num1, const int64_t& num2)
|
||||
|
||||
static void CheckNegate(const int64_t& num)
|
||||
{
|
||||
const CBigNum bignum(num);
|
||||
const CScriptNum10 bignum(num);
|
||||
const CScriptNum scriptnum(num);
|
||||
|
||||
// -INT64_MIN is undefined
|
||||
@ -81,8 +84,8 @@ static void CheckNegate(const int64_t& num)
|
||||
|
||||
static void CheckSubtract(const int64_t& num1, const int64_t& num2)
|
||||
{
|
||||
const CBigNum bignum1(num1);
|
||||
const CBigNum bignum2(num2);
|
||||
const CScriptNum10 bignum1(num1);
|
||||
const CScriptNum10 bignum2(num2);
|
||||
const CScriptNum scriptnum1(num1);
|
||||
const CScriptNum scriptnum2(num2);
|
||||
bool invalid = false;
|
||||
@ -107,8 +110,8 @@ static void CheckSubtract(const int64_t& num1, const int64_t& num2)
|
||||
|
||||
static void CheckCompare(const int64_t& num1, const int64_t& num2)
|
||||
{
|
||||
const CBigNum bignum1(num1);
|
||||
const CBigNum bignum2(num2);
|
||||
const CScriptNum10 bignum1(num1);
|
||||
const CScriptNum10 bignum2(num2);
|
||||
const CScriptNum scriptnum1(num1);
|
||||
const CScriptNum scriptnum2(num2);
|
||||
|
||||
@ -149,7 +152,7 @@ static void RunCreate(const int64_t& num)
|
||||
CheckCreateVch(num);
|
||||
else
|
||||
{
|
||||
BOOST_CHECK_THROW (CheckCreateVch(num), scriptnum_error);
|
||||
BOOST_CHECK_THROW (CheckCreateVch(num), scriptnum10_error);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user