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40 results

dht.cpp

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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