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