102 lines
2.9 KiB
C++
Executable File
102 lines
2.9 KiB
C++
Executable File
/*
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Copyright (c) 2003, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TORRENT_PEER_ID_HPP_INCLUDED
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#define TORRENT_PEER_ID_HPP_INCLUDED
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#include <iostream>
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#include <iomanip>
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namespace libtorrent
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{
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class big_number
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{
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// the number of bytes of the number
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enum { number_size = 20 };
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public:
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bool operator==(const big_number& n) const
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{
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return std::equal(n.m_number, n.m_number+number_size, m_number);
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}
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bool operator!=(const big_number& n) const
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{
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return !std::equal(n.m_number, n.m_number+number_size, m_number);
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}
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bool operator<(const big_number& n) const
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{
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for(int i = 0; i < number_size; ++i)
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{
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if (m_number[i] < n.m_number[i]) return true;
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if (m_number[i] > n.m_number[i]) return false;
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}
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return false;
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}
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typedef const unsigned char* const_iterator;
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typedef unsigned char* iterator;
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const_iterator begin() const { return m_number; }
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const_iterator end() const { return m_number+number_size; }
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iterator begin() { return m_number; }
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iterator end() { return m_number+number_size; }
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private:
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unsigned char m_number[number_size];
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};
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typedef big_number peer_id;
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typedef big_number sha1_hash;
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inline std::ostream& operator<<(std::ostream& os, const big_number& peer)
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{
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for (big_number::const_iterator i = peer.begin();
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i != peer.end();
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++i)
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{
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os << std::hex << std::setw(2) << std::setfill('0')
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<< static_cast<unsigned int>(*i);
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}
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os << std::dec << std::cout << std::setfill(' ');
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return os;
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}
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}
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#endif // TORRENT_PEER_ID_HPP_INCLUDED
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