seed.cpp

/**
 * Copyright (c) 2011-2017 libbitcoin developers (see AUTHORS)
 *
 * This file is part of libbitcoin.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include <bitcoin/explorer/commands/seed.hpp>

#include <iostream>
#include <bitcoin/system.hpp>
#include <bitcoin/explorer/define.hpp>
#include <bitcoin/explorer/utility.hpp>

namespace libbitcoin {
namespace explorer {
namespace commands {
using namespace bc::config;

console_result seed::invoke(std::ostream& output, std::ostream& error)
{
    const auto bit_length = get_bit_length_option();

    // These are soft requirements for security and rationality.
    // We use bit vs. byte length input as the more familiar convention.
    if (bit_length < minimum_seed_size * byte_bits ||
        bit_length % byte_bits != 0)
    {
        error << BX_SEED_BIT_LENGTH_UNSUPPORTED << std::endl;
        return console_result::failure;
    }

    const auto seed = new_seed(bit_length);

    output << base16(seed) << std::endl;
    return console_result::okay;
}

} //namespace commands
} //namespace explorer
} //namespace libbitcoin