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check received data size

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orignal 2024-01-17 18:15:49 -05:00
parent 7cfcb12c7b
commit 39e378a03d
1 changed files with 28 additions and 13 deletions
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41
libi2pd/NTCP2.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2023, The PurpleI2P Project
* Copyright (c) 2013-2024, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -809,10 +809,15 @@ namespace transport
void NTCP2Session::HandleReceivedLength (const boost::system::error_code& ecode, std::size_t bytes_transferred)
{
if (ecode)
if (ecode || bytes_transferred != 2)
{
if (ecode != boost::asio::error::operation_aborted)
LogPrint (eLogWarning, "NTCP2: Receive length read error: ", ecode.message ());
{
if (ecode)
LogPrint (eLogWarning, "NTCP2: Receive length read error: ", ecode.message ());
else if (bytes_transferred != 2)
LogPrint (eLogError, "NTCP2: Receive length of ", bytes_transferred, " bytes");
}
Terminate ();
}
else
@ -833,14 +838,19 @@ namespace transport
CreateNextReceivedBuffer (m_NextReceivedLen);
boost::system::error_code ec;
size_t moreBytes = m_Socket.available(ec);
if (!ec && moreBytes >= m_NextReceivedLen)
{
// read and process message immediately if available
moreBytes = boost::asio::read (m_Socket, boost::asio::buffer(m_NextReceivedBuffer, m_NextReceivedLen), boost::asio::transfer_all (), ec);
HandleReceived (ec, moreBytes);
}
if (!ec)
{
if (moreBytes >= m_NextReceivedLen)
{
// read and process message immediately if available
moreBytes = boost::asio::read (m_Socket, boost::asio::buffer(m_NextReceivedBuffer, m_NextReceivedLen), boost::asio::transfer_all (), ec);
HandleReceived (ec, moreBytes);
}
else
Receive ();
}
else
Receive ();
LogPrint (eLogWarning, "NTCP2: Socket error: ", ec.message ());
}
else
{
@ -864,10 +874,15 @@ namespace transport
void NTCP2Session::HandleReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred)
{
if (ecode)
if (ecode || bytes_transferred != m_NextReceivedLen)
{
if (ecode != boost::asio::error::operation_aborted)
LogPrint (eLogWarning, "NTCP2: Receive read error: ", ecode.message ());
if (ecode != boost::asio::error::operation_aborted)
{
if (ecode)
LogPrint (eLogWarning, "NTCP2: Receive read error: ", ecode.message ());
else if (bytes_transferred != m_NextReceivedLen)
LogPrint (eLogError, "NTCP2: Received ", bytes_transferred, " bytes. Instead ", m_NextReceivedLen);
}
Terminate ();
}
else