mirror of
https://github.com/ClickHouse/ClickHouse.git
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b79ead9c84
* Replicate poco into base/poco/ * De-register poco submodule * Build poco from ClickHouse * Exclude poco from stylecheck * Exclude poco from whitespace check * Exclude poco from typo check * Remove x bit from sources/headers (the style check complained) * Exclude poco from duplicate include check * Fix fasttest * Remove contrib/poco-cmake/* * Simplify poco build descriptions * Remove poco stuff not used by ClickHouse * Glob poco sources * Exclude poco from clang-tidy
98 lines
2.0 KiB
C++
98 lines
2.0 KiB
C++
//
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// ICMPSocketImpl.cpp
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//
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// Library: Net
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// Package: ICMP
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// Module: ICMPSocketImpl
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//
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// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#include "Poco/Net/ICMPSocketImpl.h"
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#include "Poco/Net/NetException.h"
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#include "Poco/Timespan.h"
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#include "Poco/Timestamp.h"
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#include "Poco/Exception.h"
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#include "Poco/Buffer.h"
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using Poco::TimeoutException;
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using Poco::Timespan;
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using Poco::Exception;
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namespace Poco {
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namespace Net {
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ICMPSocketImpl::ICMPSocketImpl(IPAddress::Family family, int dataSize, int ttl, int timeout):
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RawSocketImpl(family, IPPROTO_ICMP),
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_icmpPacket(family, dataSize),
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_ttl(ttl),
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_timeout(timeout)
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{
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setOption(IPPROTO_IP, IP_TTL, ttl);
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setReceiveTimeout(Timespan(timeout));
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}
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ICMPSocketImpl::~ICMPSocketImpl()
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{
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}
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int ICMPSocketImpl::sendTo(const void*, int, const SocketAddress& address, int flags)
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{
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int n = SocketImpl::sendTo(_icmpPacket.packet(), _icmpPacket.packetSize(), address, flags);
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return n;
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}
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int ICMPSocketImpl::receiveFrom(void*, int, SocketAddress& address, int flags)
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{
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int maxPacketSize = _icmpPacket.maxPacketSize();
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Poco::Buffer<unsigned char> buffer(maxPacketSize);
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try
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{
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Poco::Timestamp ts;
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do
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{
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if (ts.isElapsed(_timeout))
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{
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// This guards against a possible DoS attack, where sending
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// fake ping responses will cause an endless loop.
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throw TimeoutException();
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}
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SocketImpl::receiveFrom(buffer.begin(), maxPacketSize, address, flags);
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}
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while (!_icmpPacket.validReplyID(buffer.begin(), maxPacketSize));
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}
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catch (TimeoutException&)
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{
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throw;
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}
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catch (Exception&)
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{
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std::string err = _icmpPacket.errorDescription(buffer.begin(), maxPacketSize);
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if (!err.empty())
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throw ICMPException(err);
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else
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throw;
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}
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struct timeval then = _icmpPacket.time(buffer.begin(), maxPacketSize);
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struct timeval now = _icmpPacket.time();
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int elapsed = (((now.tv_sec * 1000000) + now.tv_usec) - ((then.tv_sec * 1000000) + then.tv_usec))/1000;
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return elapsed;
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}
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} } // namespace Poco::Net
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