/usr/include/eiskaltdcpp/dcpp/ZUtils.h is in libeiskaltdcpp-dev 2.2.9-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | /*
* Copyright (C) 2001-2012 Jacek Sieka, arnetheduck on gmail point com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <cstddef>
#include <cstdint>
#include <string>
#include <zlib.h>
namespace dcpp {
using std::string;
class ZFilter {
public:
/** Compression will automatically be turned off if below this... */
static const double MIN_COMPRESSION_LEVEL;
ZFilter();
~ZFilter();
/**
* Compress data.
* @param in Input data
* @param insize Input size (Set to 0 to indicate that no more data will follow)
* @param out Output buffer
* @param outsize Output size, set to compressed size on return.
* @return True if there's more processing to be done
*/
bool operator()(const void* in, size_t& insize, void* out, size_t& outsize);
private:
z_stream zs;
int64_t totalIn;
int64_t totalOut;
bool compressing;
};
class UnZFilter {
public:
UnZFilter();
~UnZFilter();
/**
* Decompress data.
* @param in Input data
* @param insize Input size (Set to 0 to indicate that no more data will follow)
* @param out Output buffer
* @param outsize Output size, set to decompressed size on return.
* @return True if there's more processing to be done
*/
bool operator()(const void* in, size_t& insize, void* out, size_t& outsize);
private:
z_stream zs;
};
class GZ {
public:
static void decompress(const string& source, const string& target);
};
class CRC32Filter {
public:
CRC32Filter() : crc(crc32(0, NULL, 0)) { }
// TODO 64-bits?
void operator()(const void* buf, size_t len) { crc = crc32(crc, (const Bytef*)buf, (uInt)len); }
uint32_t getValue() const { return crc; }
private:
uint32_t crc;
};
} // namespace dcpp
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