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491 lines
11 KiB
491 lines
11 KiB
/*==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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#include <cstring> |
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static uint8_t IHexCharToInt(char c) |
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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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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 += hsToLE32(*((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+= hsToLE32(last); |
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} |
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//============================================================================ |
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plMD5Checksum::plMD5Checksum(size_t size, uint8_t* 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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memset(&fContext, 0, sizeof(fContext)); |
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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 plFileName& 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(&fContext, 0, sizeof(fContext)); |
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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 plFileName& 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_t sPos = stream->GetPosition(); |
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unsigned loadLen = 1024 * 1024; |
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Start(); |
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uint8_t *buf = new uint8_t[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() |
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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(size_t size, const uint8_t* 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() |
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{ |
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MD5_Final(fChecksum, &fContext); |
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fValid = true; |
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memset(&fContext, 0, sizeof(fContext)); |
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} |
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const char* plMD5Checksum::GetAsHexString() 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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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_t* 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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//============================================================================ |
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plSHAChecksum::plSHAChecksum(size_t size, uint8_t* 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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plSHAChecksum::plSHAChecksum() |
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{ |
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Clear(); |
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} |
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plSHAChecksum::plSHAChecksum(const plSHAChecksum& rhs) |
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{ |
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memset(&fContext, 0, sizeof(fContext)); |
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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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plSHAChecksum::plSHAChecksum(const plFileName& fileName) |
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{ |
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CalcFromFile(fileName); |
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} |
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plSHAChecksum::plSHAChecksum(hsStream* stream) |
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{ |
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CalcFromStream(stream); |
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} |
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void plSHAChecksum::Clear() |
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{ |
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memset(&fContext, 0, sizeof(fContext)); |
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memset(fChecksum, 0, sizeof(fChecksum)); |
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fValid = false; |
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} |
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void plSHAChecksum::CalcFromFile(const plFileName& 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 plSHAChecksum::CalcFromStream(hsStream* stream) |
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{ |
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uint32_t sPos = stream->GetPosition(); |
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unsigned loadLen = 1024 * 1024; |
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Start(); |
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uint8_t* buf = new uint8_t[loadLen]; |
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while (int read = stream->Read(loadLen, buf)) |
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{ |
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AddTo( read, buf ); |
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} |
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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 plSHAChecksum::Start() |
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{ |
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SHA_Init(&fContext); |
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fValid = false; |
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} |
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void plSHAChecksum::AddTo(size_t size, const uint8_t* buffer) |
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{ |
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SHA_Update(&fContext, buffer, size); |
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} |
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void plSHAChecksum::Finish() |
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{ |
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SHA_Final(fChecksum, &fContext); |
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fValid = true; |
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memset(&fContext, 0, sizeof(fContext)); |
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} |
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const char* plSHAChecksum::GetAsHexString() const |
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{ |
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const int kHexStringSize = (2 * SHA_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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void plSHAChecksum::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 * SHA_DIGEST_LENGTH), "Invalid string in SHAChecksum 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 plSHAChecksum::SetValue(uint8_t* 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 plSHAChecksum::operator==(const plSHAChecksum& 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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//============================================================================ |
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plSHA1Checksum::plSHA1Checksum(size_t size, uint8_t* 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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plSHA1Checksum::plSHA1Checksum() |
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{ |
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Clear(); |
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} |
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plSHA1Checksum::plSHA1Checksum(const plSHA1Checksum& rhs) |
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{ |
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memset(&fContext, 0, sizeof(fContext)); |
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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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plSHA1Checksum::plSHA1Checksum(const plFileName& fileName) |
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{ |
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CalcFromFile(fileName); |
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} |
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plSHA1Checksum::plSHA1Checksum(hsStream* stream) |
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{ |
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CalcFromStream(stream); |
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} |
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void plSHA1Checksum::Clear() |
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{ |
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memset(fChecksum, 0, sizeof(fChecksum)); |
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fValid = false; |
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memset(&fContext, 0, sizeof(fContext)); |
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} |
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void plSHA1Checksum::CalcFromFile(const plFileName& 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 plSHA1Checksum::CalcFromStream(hsStream* stream) |
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{ |
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uint32_t sPos = stream->GetPosition(); |
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unsigned loadLen = 1024 * 1024; |
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Start(); |
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uint8_t* buf = new uint8_t[loadLen]; |
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while (int read = stream->Read(loadLen, buf)) |
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{ |
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AddTo( read, buf ); |
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} |
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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 plSHA1Checksum::Start() |
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{ |
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SHA1_Init(&fContext); |
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fValid = false; |
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} |
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void plSHA1Checksum::AddTo(size_t size, const uint8_t* buffer) |
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{ |
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SHA1_Update(&fContext, buffer, size); |
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} |
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void plSHA1Checksum::Finish() |
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{ |
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SHA1_Final(fChecksum, &fContext); |
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fValid = true; |
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memset(&fContext, 0, sizeof(fContext)); |
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} |
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const char* plSHA1Checksum::GetAsHexString() const |
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{ |
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const int kHexStringSize = (2 * SHA_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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void plSHA1Checksum::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 * SHA_DIGEST_LENGTH), "Invalid string in SHA1Checksum 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 plSHA1Checksum::SetValue(uint8_t* 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 plSHA1Checksum::operator==(const plSHA1Checksum& 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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