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c4e676d36d
* add PMTU discovery #2329 * add socket gather/scatter capabilities #2330 (win, udp) * enable WSAPoll * add FastMemoryPool * add receiveFrom() with native args * allow copying of StringTokenizer * add AtomicFlag and SpinlockMutex * update .gitignore * UDPServer and client #2343 (windows) * fix warnings * fix warnings * regenerate Net VS solutions * regenerate CppUnit projects/solutions * clang fixes * gcc fixes * try to fix travis * more travis fixes * more travis fixes * handle UDPClient exception * fix makefiles and init order warnings * add UNIX gather/scatter sendto/recvfrom implementations and tests * run travis tests as sudo * try to run tests as sudo, 2nd attempt * fix warning * use mutex in reactor * lock-order-inversion in SocketReactor #2346 * add PMTU discovery #2329 (linux) * ICMPSocket does not check reply address #1921 * remove some ignored tests * add PMTU discovery #2329 (reconcile logic with #1921) * fix native receiveFrome() * reinstate ignoring of proxy errors * add testMTU to ignore list * add include atomic * NTPClient not checking reply address #2348 * some ICMP/MTU fixes * UDPSocketReader cleanup * resolve some socket inheritance warnings * add NTP time sync to ignored tests * SocketNotifier not thread-safe #2345 * prevent x64 samples build attempt for win32 * build TestApp and Library * fix ICMP tests * regen VS projects * regen VS projects and add missing 2012 files * remove debug prints
96 lines
1.6 KiB
C++
96 lines
1.6 KiB
C++
//
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// NTPClient.cpp
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//
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// Library: Net
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// Package: NTP
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// Module: NTPClient
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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/SocketAddress.h"
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#include "Poco/Net/NTPClient.h"
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#include "Poco/Net/NTPPacket.h"
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#include "Poco/Net/DatagramSocket.h"
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#include "Poco/Net/NetException.h"
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using Poco::TimeoutException;
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namespace Poco {
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namespace Net {
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NTPClient::NTPClient(IPAddress::Family family, int timeout):
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_family(family), _timeout(timeout)
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{
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}
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NTPClient::~NTPClient()
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{
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}
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int NTPClient::request(const std::string& address) const
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{
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SocketAddress addr(address, 123);
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return request(addr);
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}
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int NTPClient::request(SocketAddress& address) const
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{
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SocketAddress sa;
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DatagramSocket ntpSocket(_family);
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ntpSocket.setReceiveTimeout(_timeout);
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ntpSocket.bind(sa);
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SocketAddress returnAddress;
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NTPEventArgs eventArgs(address);
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NTPPacket packet;
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Poco::UInt8 p[1024];
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packet.packet(&p[0]);
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ntpSocket.sendTo(p, 48, address);
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int received = 0;
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Timestamp start;
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while (true)
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{
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try
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{
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int n = ntpSocket.receiveFrom(p, sizeof(p) - 1, sa);
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if (sa != address) // reply mixup, try until timeout ...
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{
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if ((Timestamp() - start) < _timeout) continue;
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break;
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}
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if (n < 48) // NTP packet must have at least 48 bytes
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throw Poco::Net::NTPException("Invalid response received");
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packet.setPacket(p);
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eventArgs.setPacket(packet);
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++received;
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response.notify(this, eventArgs);
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break;
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}
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catch (Poco::TimeoutException &)
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{
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break;
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}
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}
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return received;
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}
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} } // namespace Poco::Net
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