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/* |
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Copyright (C) 2005-2014 Sergey A. Tachenov |
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|
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This file is part of QuaZIP. |
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|
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QuaZIP is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License as published by |
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the Free Software Foundation, either version 2.1 of the License, or |
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(at your option) any later version. |
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|
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QuaZIP 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 Lesser General Public License for more details. |
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|
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You should have received a copy of the GNU Lesser General Public License |
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along with QuaZIP. If not, see <http://www.gnu.org/licenses/>. |
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|
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See COPYING file for the full LGPL text. |
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|
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Original ZIP package is copyrighted by Gilles Vollant and contributors, |
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see quazip/(un)zip.h files for details. Basically it's the zlib license. |
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*/ |
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|
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#include "quacrc32.h" |
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|
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#include "zlib.h" |
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|
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QuaCrc32::QuaCrc32() |
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{ |
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reset(); |
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} |
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|
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quint32 QuaCrc32::calculate(const QByteArray &data) |
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{ |
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return crc32( crc32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() ); |
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} |
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|
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void QuaCrc32::reset() |
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{ |
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checksum = crc32(0L, Z_NULL, 0); |
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} |
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|
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void QuaCrc32::update(const QByteArray &buf) |
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{ |
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checksum = crc32( checksum, (const Bytef*)buf.data(), buf.size() ); |
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} |
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|
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quint32 QuaCrc32::value() |
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{ |
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return checksum; |
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} |
