mirror of
https://foundry.openuru.org/gitblit/r/CWE-ou-minkata.git
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CWE Directory Reorganization
Rearrange directory structure of CWE to be loosely equivalent to the H'uru Plasma repository. Part 1: Movement of directories and files.
This commit is contained in:
rarified
225
Sources/Plasma/PubUtilLib/plEncryption/plChecksum.cpp
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225
Sources/Plasma/PubUtilLib/plEncryption/plChecksum.cpp
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/*==LICENSE==*
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CyanWorlds.com Engine - MMOG client, server and tools
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Copyright (C) 2011 Cyan Worlds, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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Additional permissions under GNU GPL version 3 section 7
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If you modify this Program, or any covered work, by linking or
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
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(or a modified version of those libraries),
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
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licensors of this Program grant you additional
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permission to convey the resulting work. Corresponding Source for a
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non-source form of such a combination shall include the source code for
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
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work.
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You can contact Cyan Worlds, Inc. by email legal@cyan.com
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or by snail mail at:
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Cyan Worlds, Inc.
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14617 N Newport Hwy
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Mead, WA 99021
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*==LICENSE==*/
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#include "plChecksum.h"
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#include "hsStream.h"
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plChecksum::plChecksum(unsigned int bufsize, const char* buffer)
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{
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unsigned int wndsz = GetWindowSize(),i = 0;
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fSum = 0;
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const char* bufferAbsEnd = buffer + bufsize;
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const char* bufferEnvenEnd = buffer + bufsize - (bufsize % wndsz);
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while (buffer < bufferEnvenEnd)
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{
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fSum += hsSWAP32(*((SumStorage*)buffer));
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buffer += wndsz;
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}
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SumStorage last = 0;
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while (buffer < bufferAbsEnd)
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{
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((char*)&last)[i % wndsz] = *buffer;
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buffer++;
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}
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fSum+= hsSWAP32(last);
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}
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plMD5Checksum::plMD5Checksum( UInt32 size, UInt8 *buffer )
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{
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fValid = false;
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Start();
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AddTo( size, buffer );
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Finish();
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}
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plMD5Checksum::plMD5Checksum()
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{
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Clear();
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}
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plMD5Checksum::plMD5Checksum( const plMD5Checksum &rhs )
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{
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memcpy( fChecksum, rhs.fChecksum, sizeof( fChecksum ) );
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fValid = rhs.fValid;
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}
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plMD5Checksum::plMD5Checksum( const char *fileName )
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{
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CalcFromFile( fileName );
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}
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plMD5Checksum::plMD5Checksum( hsStream* stream )
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{
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CalcFromStream(stream);
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}
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void plMD5Checksum::Clear()
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{
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memset( fChecksum, 0, sizeof( fChecksum ) );
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fValid = false;
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}
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void plMD5Checksum::CalcFromFile( const char *fileName )
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{
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hsUNIXStream s;
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fValid = false;
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if( s.Open(fileName) )
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{
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CalcFromStream(&s);
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s.Close();
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}
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}
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void plMD5Checksum::CalcFromStream( hsStream* stream )
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{
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UInt32 sPos = stream->GetPosition();
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unsigned loadLen = 1024 * 1024;
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Start();
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UInt8 *buf = TRACKED_NEW UInt8[loadLen];
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while(int read = stream->Read(loadLen, buf))
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AddTo( read, buf );
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delete[] buf;
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Finish();
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stream->SetPosition(sPos);
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}
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void plMD5Checksum::Start( void )
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{
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MD5_Init( &fContext );
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fValid = false;
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}
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void plMD5Checksum::AddTo( UInt32 size, const UInt8 *buffer )
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{
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MD5_Update( &fContext, buffer, size );
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}
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void plMD5Checksum::Finish( void )
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{
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MD5_Final( fChecksum, &fContext );
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fValid = true;
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}
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const char *plMD5Checksum::GetAsHexString( void ) const
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{
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const int kHexStringSize = ( 2 * MD5_DIGEST_LENGTH ) + 1;
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static char tempString[ kHexStringSize ];
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int i;
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char *ptr;
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hsAssert( fValid, "Trying to get string version of invalid checksum" );
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for( i = 0, ptr = tempString; i < sizeof( fChecksum ); i++, ptr += 2 )
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sprintf( ptr, "%02x", fChecksum[ i ] );
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*ptr = 0;
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return tempString;
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}
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UInt8 plMD5Checksum::IHexCharToInt( char c ) const
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{
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switch( c )
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{
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// yes, it's ugly, but it'll be fast :)
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case '0': return 0;
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case '1': return 1;
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case '2': return 2;
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case '3': return 3;
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case '4': return 4;
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case '5': return 5;
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case '6': return 6;
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case '7': return 7;
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case '8': return 8;
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case '9': return 9;
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case 'a': return 10;
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case 'b': return 11;
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case 'c': return 12;
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case 'd': return 13;
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case 'e': return 14;
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case 'f': return 15;
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case 'A': return 10;
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case 'B': return 11;
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case 'C': return 12;
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case 'D': return 13;
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case 'E': return 14;
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case 'F': return 15;
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}
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return 0xff;
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}
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void plMD5Checksum::SetFromHexString( const char *string )
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{
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const char *ptr;
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int i;
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hsAssert( strlen( string ) == 2 * MD5_DIGEST_LENGTH, "Invalid string in MD5Checksum Set()" );
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for( i = 0, ptr = string; i < sizeof( fChecksum ); i++, ptr += 2 )
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fChecksum[ i ] = ( IHexCharToInt( ptr[ 0 ] ) << 4 ) | IHexCharToInt( ptr[ 1 ] );
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fValid = true;
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}
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void plMD5Checksum::SetValue(UInt8* checksum)
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{
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fValid = true;
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memcpy(fChecksum, checksum, sizeof(fChecksum));
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}
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bool plMD5Checksum::operator==( const plMD5Checksum &rhs ) const
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{
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return (fValid && rhs.fValid && memcmp(fChecksum, rhs.fChecksum, sizeof(fChecksum)) == 0);
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}
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105
Sources/Plasma/PubUtilLib/plEncryption/plChecksum.h
Normal file
105
Sources/Plasma/PubUtilLib/plEncryption/plChecksum.h
Normal file
@ -0,0 +1,105 @@
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/*==LICENSE==*
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CyanWorlds.com Engine - MMOG client, server and tools
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Copyright (C) 2011 Cyan Worlds, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
|
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
|
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Additional permissions under GNU GPL version 3 section 7
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If you modify this Program, or any covered work, by linking or
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
|
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
|
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
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(or a modified version of those libraries),
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
|
||||
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
|
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
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||||
licensors of this Program grant you additional
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||||
permission to convey the resulting work. Corresponding Source for a
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non-source form of such a combination shall include the source code for
|
||||
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
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||||
work.
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||||
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||||
You can contact Cyan Worlds, Inc. by email legal@cyan.com
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||||
or by snail mail at:
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||||
Cyan Worlds, Inc.
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14617 N Newport Hwy
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Mead, WA 99021
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*==LICENSE==*/
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#ifndef PL_CHECKSUM_H
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#define PL_CHECKSUM_H
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#include "hsTypes.h"
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#include "openssl/md5.h"
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class plChecksum
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{
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public:
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typedef UInt32 SumStorage;
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private:
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SumStorage fSum;
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public:
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plChecksum(unsigned int bufsize, const char* buffer);
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static int GetChecksumSize() { return sizeof(SumStorage); }
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static int GetWindowSize() { return sizeof(SumStorage); }
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SumStorage GetChecksum() { return fSum; }
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};
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class hsStream;
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class plMD5Checksum
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{
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protected:
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hsBool fValid;
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MD5_CTX fContext;
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UInt8 fChecksum[ MD5_DIGEST_LENGTH ];
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UInt8 IHexCharToInt( char c ) const;
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public:
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plMD5Checksum( UInt32 size, UInt8 *buffer );
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plMD5Checksum();
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plMD5Checksum( const plMD5Checksum &rhs );
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plMD5Checksum( const char *fileName );
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plMD5Checksum( hsStream* stream );
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hsBool IsValid( void ) const { return fValid; }
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void Clear();
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void CalcFromFile( const char *fileName );
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void CalcFromStream( hsStream* stream );
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void Start( void );
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void AddTo( UInt32 size, const UInt8 *buffer );
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void Finish( void );
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const UInt8 *GetValue( void ) const { return fChecksum; }
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UInt32 GetSize( void ) const { return sizeof( fChecksum ); }
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// Backdoor for cached checksums (ie, if you loaded it off disk)
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void SetValue(UInt8* checksum);
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// Note: GetAsHexString() returns a pointer to a static string; do not rely on the contents of this string between calls!
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const char *GetAsHexString( void ) const;
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void SetFromHexString( const char *string );
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bool operator==( const plMD5Checksum &rhs ) const;
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bool operator!=( const plMD5Checksum &rhs ) const { return !operator==( rhs ); }
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};
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#endif // PL_CHECKSUM_H
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