94 lines
2.1 KiB
Plaintext
94 lines
2.1 KiB
Plaintext
/*
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* This file is part of libsidplayfp, a SID player engine.
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*
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* Copyright 2012-2014 Leandro Nini <drfiemost@users.sourceforge.net>
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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 General Public License as published by
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* the Free Software Foundation; either version 2 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 General Public License for more details.
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*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef SIDMD5_H
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#define SIDMD5_H
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#include <string>
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#include <sstream>
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#include <iomanip>
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#include <memory>
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#include "utils/md5Factory.h"
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#include "sidcxx11.h"
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namespace libsidplayfp
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{
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/**
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* A wrapper around the md5 implementation that provides
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* an hex formatted digest
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*/
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class sidmd5
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{
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private:
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std::unique_ptr<iMd5> m_md5;
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public:
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/**
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* @throw md5Error
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*/
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sidmd5() :
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m_md5(md5Factory::get())
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{}
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/**
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* Append a string to the message.
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*/
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void append(const void* data, int nbytes) { m_md5->append(data, nbytes); }
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/**
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* Finish the message.
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*/
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void finish() { m_md5->finish(); }
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/**
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* Initialize the algorithm. Reset starting values.
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*/
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void reset() { m_md5->reset(); }
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/**
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* Return pointer to 32-byte hex fingerprint.
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*/
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std::string getDigest()
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{
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const unsigned char* digest = m_md5->getDigest();
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if (digest == nullptr)
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return std::string();
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// Construct fingerprint.
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std::ostringstream ss;
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ss.fill('0');
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ss.flags(std::ios::hex);
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for (int di = 0; di < 16; ++di)
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{
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ss << std::setw(2) << static_cast<int>(digest[di]);
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}
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return ss.str();
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}
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};
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}
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#endif
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