examples/connect.cpp

#include <bitcoin/bitcoin.hpp>
using namespace bc;

using std::placeholders::_1;

// Connection is established.
// Send version message to remote host.
void connect_started(const std::error_code& ec, channel_ptr node);
// Verson message finished sending.
// Program completed.
void version_sent(const std::error_code& ec, channel_ptr node);

void connect_started(const std::error_code& ec, channel_ptr node)
{
    if (ec)
    {
        log_error() << "Connect: " << ec.message();
        return;
    }
    // Create our version message we want to send.
    // Fill in a bunch of fields.
    version_type version;
    version.version = 60000;
    version.services = 1;
    version.address_me.services = version.services;
    version.address_me.ip =
        ip_address_type{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                        0x00, 0x00, 0xff, 0xff, 0x0a, 0x00, 0x00, 0x01};
    version.address_me.port = 8333;
    version.address_you.services = version.services;
    version.address_you.ip =
        ip_address_type{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                        0x00, 0x00, 0xff, 0xff, 0x0a, 0x00, 0x00, 0x01};
    version.address_you.port = 8333;
    // Set the user agent.
    version.user_agent = "/libbitcoin/connect-test/";
    version.start_height = 0;
    version.nonce = rand();
    // Begin the send.
    // Calls version_sent callback when complete.
    node->send(version, std::bind(version_sent, _1, node));
}

void version_sent(const std::error_code& ec, channel_ptr node)
{
    if (ec)
        log_error() << "Sending version: " << ec.message();
    else
        log_info() << "Version sent.";
}

int main()
{
    threadpool pool(1);
    network net(pool);
    net.connect("localhost", 8333, connect_started);
    std::cin.get();
    pool.stop();
    pool.join();
    return 0;
}