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113 lines
3.4 KiB
113 lines
3.4 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum 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 3 of the License, or
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(at your option) any later version.
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cpp-ethereum 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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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file CommonEth.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#include "CommonEth.h"
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#include <random>
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#include <secp256k1/secp256k1.h>
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#include <libdevcrypto/SHA3.h>
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#include "Exceptions.h"
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using namespace std;
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using namespace dev;
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using namespace dev::eth;
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//#define ETH_ADDRESS_DEBUG 1
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namespace dev
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{
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namespace eth
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{
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const unsigned c_protocolVersion = 33;
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const unsigned c_databaseVersion = 2;
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static const vector<pair<u256, string>> g_units =
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{
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{((((u256(1000000000) * 1000000000) * 1000000000) * 1000000000) * 1000000000) * 1000000000, "Uether"},
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{((((u256(1000000000) * 1000000000) * 1000000000) * 1000000000) * 1000000000) * 1000000, "Vether"},
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{((((u256(1000000000) * 1000000000) * 1000000000) * 1000000000) * 1000000000) * 1000, "Dether"},
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{(((u256(1000000000) * 1000000000) * 1000000000) * 1000000000) * 1000000000, "Nether"},
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{(((u256(1000000000) * 1000000000) * 1000000000) * 1000000000) * 1000000, "Yether"},
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{(((u256(1000000000) * 1000000000) * 1000000000) * 1000000000) * 1000, "Zether"},
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{((u256(1000000000) * 1000000000) * 1000000000) * 1000000000, "Eether"},
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{((u256(1000000000) * 1000000000) * 1000000000) * 1000000, "Pether"},
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{((u256(1000000000) * 1000000000) * 1000000000) * 1000, "Tether"},
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{(u256(1000000000) * 1000000000) * 1000000000, "Gether"},
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{(u256(1000000000) * 1000000000) * 1000000, "Mether"},
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{(u256(1000000000) * 1000000000) * 1000, "Kether"},
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{u256(1000000000) * 1000000000, "ether"},
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{u256(1000000000) * 1000000, "finney"},
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{u256(1000000000) * 1000, "szabo"},
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{u256(1000000000), "Gwei"},
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{u256(1000000), "Mwei"},
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{u256(1000), "Kwei"},
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{u256(1), "wei"}
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};
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vector<pair<u256, string>> const& units()
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{
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return g_units;
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}
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std::string formatBalance(u256 _b)
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{
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ostringstream ret;
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if (_b > g_units[0].first * 10000)
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{
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ret << (_b / g_units[0].first) << " " << g_units[0].second;
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return ret.str();
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}
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ret << setprecision(5);
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for (auto const& i: g_units)
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if (i.first != 1 && _b >= i.first * 100)
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{
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ret << (double(_b / (i.first / 1000)) / 1000.0) << " " << i.second;
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return ret.str();
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}
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ret << _b << " wei";
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return ret.str();
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}
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Address toAddress(Secret _private)
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{
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secp256k1_start();
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byte pubkey[65];
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int pubkeylen = 65;
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int ok = secp256k1_ecdsa_seckey_verify(_private.data());
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if (!ok)
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return Address();
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ok = secp256k1_ecdsa_pubkey_create(pubkey, &pubkeylen, _private.data(), 0);
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assert(pubkeylen == 65);
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if (!ok)
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return Address();
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ok = secp256k1_ecdsa_pubkey_verify(pubkey, 65);
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if (!ok)
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return Address();
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auto ret = right160(dev::eth::sha3(bytesConstRef(&(pubkey[1]), 64)));
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#if ETH_ADDRESS_DEBUG
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cout << "---- ADDRESS -------------------------------" << endl;
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cout << "SEC: " << _private << endl;
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cout << "PUB: " << toHex(bytesConstRef(&(pubkey[1]), 64)) << endl;
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cout << "ADR: " << ret << endl;
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#endif
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return ret;
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}
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}}
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