mirror of
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50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
/*************************************************************************
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* UrBackup - Client/Server backup system
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* Copyright (C) 2011-2016 Martin Raiber
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*
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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 Affero 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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*
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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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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**************************************************************************/
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#include "ZlibCompression.h"
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using namespace CryptoPPCompat;
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ZlibCompression::ZlibCompression(int compression_level)
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{
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comp.SetDeflateLevel(compression_level);
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}
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ZlibCompression::~ZlibCompression(void)
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{
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}
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size_t ZlibCompression::compress(const char *input, size_t input_length, std::vector<char> *output, bool flush, size_t output_off)
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{
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if(input_length>0)
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{
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comp.Put((const byte*)input, input_length);
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}
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if(flush)
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{
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comp.Flush(true);
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}
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size_t rc=(size_t)comp.MaxRetrievable();
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if(output->size()<rc+output_off)
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{
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output->resize(rc+output_off);
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}
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return comp.Get((byte*)(&(*output)[output_off]), rc);
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} |