*Massive cleanup (\n\n -> \n, *\n -> \n, cleanup for(...) to for (...), and some other cleanups by hand)
*Fix a possible crash in Spell::DoAllEffectOnTarget --HG-- branch : trunk
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@@ -17,182 +17,143 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "Auth/BigNumber.h"
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#include <openssl/bn.h>
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#include <algorithm>
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BigNumber::BigNumber()
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{
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_bn = BN_new();
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_array = NULL;
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}
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BigNumber::BigNumber(const BigNumber &bn)
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{
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_bn = BN_dup(bn._bn);
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_array = NULL;
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}
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BigNumber::BigNumber(uint32 val)
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{
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_bn = BN_new();
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BN_set_word(_bn, val);
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_array = NULL;
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}
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BigNumber::~BigNumber()
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{
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BN_free(_bn);
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if(_array) delete[] _array;
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}
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void BigNumber::SetDword(uint32 val)
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{
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BN_set_word(_bn, val);
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}
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void BigNumber::SetQword(uint64 val)
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{
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BN_add_word(_bn, (uint32)(val >> 32));
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BN_lshift(_bn, _bn, 32);
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BN_add_word(_bn, (uint32)(val & 0xFFFFFFFF));
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}
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void BigNumber::SetBinary(const uint8 *bytes, int len)
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{
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uint8 t[1000];
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for (int i = 0; i < len; i++) t[i] = bytes[len - 1 - i];
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BN_bin2bn(t, len, _bn);
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}
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void BigNumber::SetHexStr(const char *str)
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{
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BN_hex2bn(&_bn, str);
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}
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void BigNumber::SetRand(int numbits)
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{
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BN_rand(_bn, numbits, 0, 1);
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}
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BigNumber BigNumber::operator=(const BigNumber &bn)
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{
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BN_copy(_bn, bn._bn);
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return *this;
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}
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BigNumber BigNumber::operator+=(const BigNumber &bn)
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{
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BN_add(_bn, _bn, bn._bn);
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return *this;
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}
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BigNumber BigNumber::operator-=(const BigNumber &bn)
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{
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BN_sub(_bn, _bn, bn._bn);
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return *this;
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}
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BigNumber BigNumber::operator*=(const BigNumber &bn)
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{
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BN_CTX *bnctx;
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bnctx = BN_CTX_new();
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BN_mul(_bn, _bn, bn._bn, bnctx);
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BN_CTX_free(bnctx);
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return *this;
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}
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BigNumber BigNumber::operator/=(const BigNumber &bn)
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{
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BN_CTX *bnctx;
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bnctx = BN_CTX_new();
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BN_div(_bn, NULL, _bn, bn._bn, bnctx);
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BN_CTX_free(bnctx);
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return *this;
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}
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BigNumber BigNumber::operator%=(const BigNumber &bn)
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{
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BN_CTX *bnctx;
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bnctx = BN_CTX_new();
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BN_mod(_bn, _bn, bn._bn, bnctx);
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BN_CTX_free(bnctx);
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return *this;
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}
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BigNumber BigNumber::Exp(const BigNumber &bn)
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{
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BigNumber ret;
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BN_CTX *bnctx;
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bnctx = BN_CTX_new();
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BN_exp(ret._bn, _bn, bn._bn, bnctx);
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BN_CTX_free(bnctx);
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return ret;
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}
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BigNumber BigNumber::ModExp(const BigNumber &bn1, const BigNumber &bn2)
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{
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BigNumber ret;
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BN_CTX *bnctx;
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bnctx = BN_CTX_new();
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BN_mod_exp(ret._bn, _bn, bn1._bn, bn2._bn, bnctx);
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BN_CTX_free(bnctx);
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return ret;
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}
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int BigNumber::GetNumBytes(void)
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{
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return BN_num_bytes(_bn);
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}
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uint32 BigNumber::AsDword()
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{
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return (uint32)BN_get_word(_bn);
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}
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bool BigNumber::isZero() const
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{
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return BN_is_zero(_bn)!=0;
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}
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uint8 *BigNumber::AsByteArray(int minSize)
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{
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int length = (minSize >= GetNumBytes()) ? minSize : GetNumBytes();
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if (_array)
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{
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delete[] _array;
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_array = NULL;
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}
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_array = new uint8[length];
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// If we need more bytes than length of BigNumber set the rest to 0
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if (length > GetNumBytes())
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memset((void*)_array, 0, length);
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BN_bn2bin(_bn, (unsigned char *)_array);
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std::reverse(_array, _array + length);
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return _array;
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}
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const char *BigNumber::AsHexStr()
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{
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return BN_bn2hex(_bn);
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}
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const char *BigNumber::AsDecStr()
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{
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return BN_bn2dec(_bn);
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