mirror of
https://github.com/g4klx/DAPNETGateway.git
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101 lines
2.4 KiB
C++
101 lines
2.4 KiB
C++
/*
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* Copyright (C) 2018 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "POCSAGNetwork.h"
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#include "Utils.h"
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#include "Log.h"
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#include <cstdio>
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#include <cassert>
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#include <cstring>
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CPOCSAGNetwork::CPOCSAGNetwork(const std::string& localAddress, unsigned int localPort, const std::string& remoteAddress, unsigned int remotePort, bool debug) :
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m_socket(localAddress, localPort),
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m_address(),
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m_port(remotePort),
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m_debug(debug)
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{
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assert(!remoteAddress.empty());
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assert(remotePort > 0U);
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m_address = CUDPSocket::lookup(remoteAddress);
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}
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CPOCSAGNetwork::~CPOCSAGNetwork()
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{
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}
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bool CPOCSAGNetwork::open()
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{
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LogMessage("Opening POCSAG network connection");
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return m_socket.open();
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}
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bool CPOCSAGNetwork::write(CPOCSAGMessage* message)
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{
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assert(message != NULL);
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unsigned char data[200U];
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data[0U] = 'P';
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data[1U] = 'O';
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data[2U] = 'C';
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data[3U] = 'S';
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data[4U] = 'A';
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data[5U] = 'G';
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data[6U] = message->m_ric >> 16;
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data[7U] = message->m_ric >> 8;
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data[8U] = message->m_ric >> 0;
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data[9U] = message->m_functional;
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::memcpy(data + 10U, message->m_message, message->m_length);
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if (m_debug)
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CUtils::dump(1U, "POCSAG Network Data Sent", data, message->m_length + 10U);
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return m_socket.write(data, message->m_length + 10U, m_address, m_port);
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}
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unsigned int CPOCSAGNetwork::read(unsigned char* data)
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{
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assert(data != NULL);
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in_addr address;
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unsigned int port;
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int length = m_socket.read(data, 1U, address, port);
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if (length <= 0)
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return 0U;
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if (address.s_addr != m_address.s_addr || port != m_port)
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return 0U;
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if (m_debug)
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CUtils::dump(1U, "POCSAG Network Data Received", data, length);
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return length;
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}
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void CPOCSAGNetwork::close()
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{
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m_socket.close();
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LogMessage("Closing POCSAG network connection");
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}
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