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dht.cpp 89.53 KiB
/*
* Copyright (C) 2014-2016 Savoir-faire Linux Inc.
* Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
* Simon Désaulniers <sim.desaulniers@gmail.com>
*
* This program 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.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "dht.h"
#include "rng.h"
#include "request.h"
#include <msgpack.hpp>
extern "C" {
#include <gnutls/gnutls.h>
}
#ifndef _WIN32
#include <arpa/inet.h>
#else
#include <ws2tcpip.h>
#endif
#include <algorithm>
#include <random>
#include <sstream>
#include <unistd.h>
#include <fcntl.h>
#include <cstring>
#ifdef _WIN32
static bool
set_nonblocking(int fd, int nonblocking)
{
unsigned long mode = !!nonblocking;
int rc = ioctlsocket(fd, FIONBIO, &mode);
return rc == 0;
}
extern const char *inet_ntop(int, const void *, char *, socklen_t);
#else
static bool
set_nonblocking(int fd, int nonblocking)
{
int rc = fcntl(fd, F_GETFL, 0);
if (rc < 0)
return false;
rc = fcntl(fd, F_SETFL, nonblocking?(rc | O_NONBLOCK):(rc & ~O_NONBLOCK));
return rc >= 0;
}
#endif