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NTP request through compatible address

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orignal 2021-07-24 16:01:11 -04:00
parent 26d5ced2ef
commit cd8e8970de
1 changed files with 33 additions and 3 deletions
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36
libi2pd/Timestamp.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2020, The PurpleI2P Project
* Copyright (c) 2013-2021, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -16,6 +16,7 @@
#include <boost/algorithm/string.hpp>
#include "Config.h"
#include "Log.h"
#include "RouterContext.h"
#include "I2PEndian.h"
#include "Timestamp.h"
#include "util.h"
@ -63,9 +64,38 @@ namespace util
boost::system::error_code ec;
auto it = boost::asio::ip::udp::resolver (service).resolve (
boost::asio::ip::udp::resolver::query (address, "ntp"), ec);
if (!ec && it != boost::asio::ip::udp::resolver::iterator())
if (!ec)
{
auto ep = (*it).endpoint (); // take first one
bool found = false;
boost::asio::ip::udp::resolver::iterator end;
boost::asio::ip::udp::endpoint ep;
while (it != end)
{
ep = *it;
if (!ep.address ().is_unspecified ())
{
if (ep.address ().is_v4 ())
{
if (i2p::context.SupportsV4 ()) found = true;
}
else if (ep.address ().is_v6 ())
{
if (i2p::util::net::IsYggdrasilAddress (ep.address ()))
{
if (i2p::context.SupportsMesh ()) found = true;
}
else if (i2p::context.SupportsV6 ()) found = true;
}
}
if (found) break;
it++;
}
if (!found)
{
LogPrint (eLogError, "Timestamp: can't find compatible address for ", address);
return;
}
boost::asio::ip::udp::socket socket (service);
socket.open (ep.protocol (), ec);
if (!ec)