Initial commit.

.gitignore

@@ -0,0 +1,16 @@
+Debug
+Release
+x64
+DAPNETGateway
+*.o
+*.opendb
+*.bak
+*.obj
+*~
+*.sdf
+*.log
+*.zip
+*.exe
+*.user
+*.VC.db
+.vs

Conf.cpp

@@ -0,0 +1,199 @@
+/*
+ *   Copyright (C) 2018 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "Conf.h"
+#include "Log.h"
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <cctype>
+
+const int BUFFER_SIZE = 500;
+
+enum SECTION {
+  SECTION_NONE,
+  SECTION_GENERAL,
+  SECTION_LOG,
+  SECTION_DAPNET
+};
+
+CConf::CConf(const std::string& file) :
+m_file(file),
+m_callsign(),
+m_rptAddress(),
+m_rptPort(0U),
+m_myAddress(),
+m_myPort(0U),
+m_daemon(false),
+m_logDisplayLevel(0U),
+m_logFileLevel(0U),
+m_logFilePath(),
+m_logFileRoot(),
+m_dapnetAddress(),
+m_dapnetPort(0U),
+m_dapnetAuthKey(),
+m_dapnetDebug(false)
+{
+}
+
+CConf::~CConf()
+{
+}
+
+bool CConf::read()
+{
+  FILE* fp = ::fopen(m_file.c_str(), "rt");
+  if (fp == NULL) {
+    ::fprintf(stderr, "Couldn't open the .ini file - %s\n", m_file.c_str());
+    return false;
+  }
+
+  SECTION section = SECTION_NONE;
+
+  char buffer[BUFFER_SIZE];
+  while (::fgets(buffer, BUFFER_SIZE, fp) != NULL) {
+    if (buffer[0U] == '#')
+      continue;
+
+    if (buffer[0U] == '[') {
+      if (::strncmp(buffer, "[General]", 9U) == 0)
+        section = SECTION_GENERAL;
+	  else if (::strncmp(buffer, "[Log]", 5U) == 0)
+		  section = SECTION_LOG;
+	  else if (::strncmp(buffer, "[DAPNET]", 8U) == 0)
+		  section = SECTION_DAPNET;
+	  else
+        section = SECTION_NONE;
+
+      continue;
+    }
+
+    char* key   = ::strtok(buffer, " \t=\r\n");
+    if (key == NULL)
+      continue;
+
+    char* value = ::strtok(NULL, "\r\n");
+	if (section == SECTION_GENERAL) {
+		if (::strcmp(key, "Callsign") == 0)
+			m_callsign = value;
+		else if (::strcmp(key, "RptAddress") == 0)
+			m_rptAddress = value;
+		else if (::strcmp(key, "RptPort") == 0)
+			m_rptPort = (unsigned int)::atoi(value);
+		else if (::strcmp(key, "LocalAddress") == 0)
+			m_myAddress = value;
+		else if (::strcmp(key, "LocalPort") == 0)
+			m_myPort = (unsigned int)::atoi(value);
+		else if (::strcmp(key, "Daemon") == 0)
+			m_daemon = ::atoi(value) == 1;
+	} else if (section == SECTION_LOG) {
+		if (::strcmp(key, "FilePath") == 0)
+			m_logFilePath = value;
+		else if (::strcmp(key, "FileRoot") == 0)
+			m_logFileRoot = value;
+		else if (::strcmp(key, "FileLevel") == 0)
+			m_logFileLevel = (unsigned int)::atoi(value);
+		else if (::strcmp(key, "DisplayLevel") == 0)
+			m_logDisplayLevel = (unsigned int)::atoi(value);
+	} else if (section == SECTION_DAPNET) {
+		if (::strcmp(key, "Address") == 0)
+			m_dapnetAddress = value;
+		else if (::strcmp(key, "Port") == 0)
+			m_dapnetPort = (unsigned int)::atoi(value);
+		else if (::strcmp(key, "AuthKey") == 0)
+			m_dapnetAuthKey = value;
+		else if (::strcmp(key, "Debug") == 0)
+			m_dapnetDebug = ::atoi(value) == 1;
+	}
+  }
+
+  ::fclose(fp);
+
+  return true;
+}
+
+std::string CConf::getCallsign() const
+{
+  return m_callsign;
+}
+
+std::string CConf::getRptAddress() const
+{
+	return m_rptAddress;
+}
+
+unsigned int CConf::getRptPort() const
+{
+	return m_rptPort;
+}
+
+std::string CConf::getMyAddress() const
+{
+	return m_myAddress;
+}
+
+unsigned int CConf::getMyPort() const
+{
+	return m_myPort;
+}
+
+bool CConf::getDaemon() const
+{
+	return m_daemon;
+}
+
+unsigned int CConf::getLogDisplayLevel() const
+{
+	return m_logDisplayLevel;
+}
+
+unsigned int CConf::getLogFileLevel() const
+{
+	return m_logFileLevel;
+}
+
+std::string CConf::getLogFilePath() const
+{
+  return m_logFilePath;
+}
+
+std::string CConf::getLogFileRoot() const
+{
+  return m_logFileRoot;
+}
+
+std::string CConf::getDAPNETAddress() const
+{
+	return m_dapnetAddress;
+}
+
+unsigned int CConf::getDAPNETPort() const
+{
+	return m_dapnetPort;
+}
+
+std::string CConf::getDAPNETAuthKey() const
+{
+	return m_dapnetAuthKey;
+}
+
+bool CConf::getDAPNETDebug() const
+{
+	return m_dapnetDebug;
+}

Conf.h

@@ -0,0 +1,72 @@
+/*
+ *   Copyright (C) 2018 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if !defined(CONF_H)
+#define	CONF_H
+
+#include <string>
+
+class CConf
+{
+public:
+  CConf(const std::string& file);
+  ~CConf();
+
+  bool read();
+
+  // The General section
+  std::string  getCallsign() const;
+  std::string  getRptAddress() const;
+  unsigned int getRptPort() const;
+  std::string  getMyAddress() const;
+  unsigned int getMyPort() const;
+  bool         getDaemon() const;
+
+  // The Log section
+  unsigned int getLogDisplayLevel() const;
+  unsigned int getLogFileLevel() const;
+  std::string  getLogFilePath() const;
+  std::string  getLogFileRoot() const;
+
+  // The DAPNET section
+  std::string  getDAPNETAddress() const;
+  unsigned int getDAPNETPort() const;
+  std::string  getDAPNETAuthKey() const;
+  bool         getDAPNETDebug() const;
+
+private:
+  std::string  m_file;
+  std::string  m_callsign;
+  std::string  m_rptAddress;
+  unsigned int m_rptPort;
+  std::string  m_myAddress;
+  unsigned int m_myPort;
+  bool         m_daemon;
+
+  unsigned int m_logDisplayLevel;
+  unsigned int m_logFileLevel;
+  std::string  m_logFilePath;
+  std::string  m_logFileRoot;
+
+  std::string  m_dapnetAddress;
+  unsigned int m_dapnetPort;
+  std::string  m_dapnetAuthKey;
+  bool         m_dapnetDebug;
+};
+
+#endif

DAPNETGateway.cpp

@@ -0,0 +1,320 @@
+/*
+*   Copyright (C) 2018 by Jonathan Naylor G4KLX
+*
+*   This program is free software; you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation; either version 2 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that it will be useful,
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*   GNU General Public License for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program; if not, write to the Free Software
+*   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "DAPNETGateway.h"
+#include "StopWatch.h"
+#include "Version.h"
+#include "Thread.h"
+#include "Timer.h"
+#include "Log.h"
+
+#if defined(_WIN32) || defined(_WIN64)
+#include <Windows.h>
+#else
+#include <sys/time.h>
+#include <unistd.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <pwd.h>
+#endif
+
+#if defined(_WIN32) || defined(_WIN64)
+const char* DEFAULT_INI_FILE = "DAPNETGateway.ini";
+#else
+const char* DEFAULT_INI_FILE = "/etc/DAPNETGateway.ini";
+#endif
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <clocale>
+#include <cassert>
+#include <cmath>
+
+const unsigned int FRAME_TIME = 1000U * (17U * 32U) / 1200U;
+
+int main(int argc, char** argv)
+{
+	const char* iniFile = DEFAULT_INI_FILE;
+	if (argc > 1) {
+		for (int currentArg = 1; currentArg < argc; ++currentArg) {
+			std::string arg = argv[currentArg];
+			if ((arg == "-v") || (arg == "--version")) {
+				::fprintf(stdout, "DAPNETGateway version %s\n", VERSION);
+				return 0;
+			} else if (arg.substr(0, 1) == "-") {
+				::fprintf(stderr, "Usage: DAPNETGateway [-v|--version] [filename]\n");
+				return 1;
+			} else {
+				iniFile = argv[currentArg];
+			}
+		}
+	}
+
+	CDAPNETGateway* gateway = new CDAPNETGateway(std::string(iniFile));
+
+	int ret = gateway->run();
+
+	delete gateway;
+
+	return ret;
+}
+
+CDAPNETGateway::CDAPNETGateway(const std::string& configFile) :
+m_conf(configFile),
+m_dapnetNetwork(NULL),
+m_pocsagNetwork(NULL),
+m_queue()
+{
+}
+
+CDAPNETGateway::~CDAPNETGateway()
+{
+	// XXX Free any data in the queue
+}
+
+int CDAPNETGateway::run()
+{
+	bool ret = m_conf.read();
+	if (!ret) {
+		::fprintf(stderr, "DAPNETGateway: cannot read the .ini file\n");
+		return 1;
+	}
+
+	setlocale(LC_ALL, "C");
+
+	ret = ::LogInitialise(m_conf.getLogFilePath(), m_conf.getLogFileRoot(), m_conf.getLogFileLevel(), m_conf.getLogDisplayLevel());
+	if (!ret) {
+		::fprintf(stderr, "DAPNETGateway: unable to open the log file\n");
+		return 1;
+	}
+
+#if !defined(_WIN32) && !defined(_WIN64)
+	bool m_daemon = m_conf.getDaemon();
+	if (m_daemon) {
+		// Create new process
+		pid_t pid = ::fork();
+		if (pid == -1) {
+			::LogWarning("Couldn't fork() , exiting");
+			return -1;
+		}
+		else if (pid != 0)
+			exit(EXIT_SUCCESS);
+
+		// Create new session and process group
+		if (::setsid() == -1) {
+			::LogWarning("Couldn't setsid(), exiting");
+			return -1;
+		}
+
+		// Set the working directory to the root directory
+		if (::chdir("/") == -1) {
+			::LogWarning("Couldn't cd /, exiting");
+			return -1;
+		}
+
+		::close(STDIN_FILENO);
+		::close(STDOUT_FILENO);
+		::close(STDERR_FILENO);
+
+		//If we are currently root...
+		if (getuid() == 0) {
+			struct passwd* user = ::getpwnam("mmdvm");
+			if (user == NULL) {
+				::LogError("Could not get the mmdvm user, exiting");
+				return -1;
+			}
+
+			uid_t mmdvm_uid = user->pw_uid;
+			gid_t mmdvm_gid = user->pw_gid;
+
+			//Set user and group ID's to mmdvm:mmdvm
+			if (setgid(mmdvm_gid) != 0) {
+				::LogWarning("Could not set mmdvm GID, exiting");
+				return -1;
+			}
+
+			if (setuid(mmdvm_uid) != 0) {
+				::LogWarning("Could not set mmdvm UID, exiting");
+				return -1;
+			}
+
+			//Double check it worked (AKA Paranoia) 
+			if (setuid(0) != -1) {
+				::LogWarning("It's possible to regain root - something is wrong!, exiting");
+				return -1;
+			}
+		}
+	}
+#endif
+
+	bool debug             = m_conf.getDAPNETDebug();
+
+	std::string rptAddress = m_conf.getRptAddress();
+	unsigned int rptPort   = m_conf.getRptPort();
+	std::string myAddress  = m_conf.getMyAddress();
+	unsigned int myPort    = m_conf.getMyPort();
+
+	m_pocsagNetwork = new CPOCSAGNetwork(myAddress, myPort, rptAddress, rptPort, debug);
+	ret = m_pocsagNetwork->open();
+	if (!ret) {
+		::LogError("Cannot open the repeater network port");
+		::LogFinalise();
+
+		return 1;
+	}
+
+	std::string callsign      = m_conf.getCallsign();
+	std::string dapnetAddress = m_conf.getDAPNETAddress();
+	unsigned int dapnetPort   = m_conf.getDAPNETPort();
+	std::string dapnetAuthKey = m_conf.getDAPNETAuthKey();
+
+	m_dapnetNetwork = new CDAPNETNetwork(dapnetAddress, dapnetPort, callsign, dapnetAuthKey, VERSION, debug);
+	ret = m_dapnetNetwork->open();
+	if (!ret) {
+		m_pocsagNetwork->close();
+		delete m_pocsagNetwork;
+		delete m_dapnetNetwork;
+
+		::LogError("Cannot open the DAPNET network port");
+		::LogFinalise();
+
+		return 1;
+	}
+
+	ret = m_dapnetNetwork->login();
+	if (!ret) {
+		m_pocsagNetwork->close();
+		m_dapnetNetwork->close();
+		delete m_pocsagNetwork;
+		delete m_dapnetNetwork;
+
+		::LogError("Cannot login to the DAPNET network");
+		::LogFinalise();
+
+		return 1;
+	}
+
+	::LogMessage("Logged into the DAPNET network");
+
+	CTimer messageTimer(1000U, 0U, FRAME_TIME);
+
+	CStopWatch stopWatch;
+	stopWatch.start();
+
+	unsigned int calls = 0U;
+
+	bool tx = false;
+
+	LogMessage("Starting DAPNETGateway-%s", VERSION);
+
+	for (;;) {
+		unsigned char buffer[200U];
+
+		if (m_pocsagNetwork->read(buffer) > 0U) {
+			switch (buffer[0U]) {
+			case 0x00U:
+				// The MMDVM is idle
+				messageTimer.start();
+				break;
+			case 0xFFU:
+				// The MMDVM is busy
+				messageTimer.stop();
+				break;
+			default:
+				// The MMDVM is sending crap
+				LogWarning("Unknown data from the MMDVM - 0x%02X", buffer[0U]);
+				break;
+			}
+		}
+
+		bool ok = m_dapnetNetwork->read();
+		if (!ok) {
+			m_dapnetNetwork->close();
+			m_dapnetNetwork->open();
+			m_dapnetNetwork->login();
+		}
+
+		unsigned int ms = stopWatch.elapsed();
+		stopWatch.start();
+
+		messageTimer.clock(ms);
+		if (messageTimer.isRunning() && messageTimer.hasExpired()) {
+			if (!m_queue.empty()) {
+				if (!tx)
+					calls = 0U;
+
+				tx = true;
+
+				sendData();
+
+				calls++;
+			} else {
+				if (tx)
+					LogMessage("Sent %u messages within that batch", calls);
+
+				tx = false;
+			}
+
+			messageTimer.start();
+		}
+
+		if (ms < 5U)
+			CThread::sleep(5U);
+	}
+
+	m_pocsagNetwork->close();
+	delete m_pocsagNetwork;
+
+	m_dapnetNetwork->close();
+	delete m_dapnetNetwork;
+
+	::LogFinalise();
+
+	return 0;
+}
+
+bool CDAPNETGateway::sendData()
+{
+	assert(m_pocsagNetwork != NULL);
+
+	if (!m_queue.empty()) {
+		CPOCSAGMessage* message = m_queue.back();
+		m_queue.pop_back();
+		m_pocsagNetwork->write(message);
+		delete message;
+		return true;
+	}
+
+	return false;
+}
+
+bool CDAPNETGateway::recover()
+{
+	for (;;) {
+		m_dapnetNetwork->close();
+		bool ok = m_dapnetNetwork->open();
+		if (ok) {
+			ok = m_dapnetNetwork->login();
+			if (ok)
+				return true;
+		}
+	}
+
+	return false;
+}

DAPNETGateway.h

@@ -0,0 +1,48 @@
+/*
+*   Copyright (C) 2018 by Jonathan Naylor G4KLX
+*
+*   This program is free software; you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation; either version 2 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that it will be useful,
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*   GNU General Public License for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program; if not, write to the Free Software
+*   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#if !defined(DAPNETGateway_H)
+#define	DAPNETGateway_H
+
+#include "DAPNETNetwork.h"
+#include "POCSAGNetwork.h"
+#include "POCSAGMessage.h"
+#include "Conf.h"
+
+#include <string>
+#include <deque>
+
+class CDAPNETGateway
+{
+public:
+	CDAPNETGateway(const std::string& configFile);
+	~CDAPNETGateway();
+
+	int run();
+
+private:
+	CConf                       m_conf;
+	CDAPNETNetwork*             m_dapnetNetwork;
+	CPOCSAGNetwork*             m_pocsagNetwork;
+	std::deque<CPOCSAGMessage*> m_queue;
+
+	bool sendData();
+	bool recover();
+};
+
+#endif

DAPNETGateway.ini

@@ -0,0 +1,20 @@
+[General]
+Callsign=G9BF
+RptAddress=127.0.0.1
+RptPort=3200
+LocalAddress=127.0.0.1
+LocalPort=4200
+Daemon=0
+
+[Log]
+# Logging levels, 0=No logging
+DisplayLevel=1
+FileLevel=1
+FilePath=.
+FileRoot=DAPNETGateway
+
+[DAPNET]
+Address=dapnet.afu.rwth-aachen.de
+Port=43434
+AuthKey=TOPSECRET
+Debug=0

DAPNETGateway.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.27703.2026
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "DAPNETGateway", "DAPNETGateway.vcxproj", "{55BEF4BF-9A1A-42F0-B1B7-7A0E05EBF0FF}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{55BEF4BF-9A1A-42F0-B1B7-7A0E05EBF0FF}.Debug|x64.ActiveCfg = Debug|x64
+		{55BEF4BF-9A1A-42F0-B1B7-7A0E05EBF0FF}.Debug|x64.Build.0 = Debug|x64
+		{55BEF4BF-9A1A-42F0-B1B7-7A0E05EBF0FF}.Debug|x86.ActiveCfg = Debug|Win32
+		{55BEF4BF-9A1A-42F0-B1B7-7A0E05EBF0FF}.Debug|x86.Build.0 = Debug|Win32
+		{55BEF4BF-9A1A-42F0-B1B7-7A0E05EBF0FF}.Release|x64.ActiveCfg = Release|x64
+		{55BEF4BF-9A1A-42F0-B1B7-7A0E05EBF0FF}.Release|x64.Build.0 = Release|x64
+		{55BEF4BF-9A1A-42F0-B1B7-7A0E05EBF0FF}.Release|x86.ActiveCfg = Release|Win32
+		{55BEF4BF-9A1A-42F0-B1B7-7A0E05EBF0FF}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {AB378848-91BD-4C59-9477-1CCF6BFCBA62}
+	EndGlobalSection
+EndGlobal

DAPNETGateway.vcxproj

@@ -0,0 +1,185 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="Conf.h" />
+    <ClInclude Include="DAPNETGateway.h" />
+    <ClInclude Include="DAPNETNetwork.h" />
+    <ClInclude Include="Log.h" />
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DAPNETGateway.vcxproj.filters

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="Conf.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="DAPNETGateway.h">
+      <Filter>Header Files</Filter>
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+    <ClInclude Include="Log.h">
+      <Filter>Header Files</Filter>
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+    <ClInclude Include="StopWatch.h">
+      <Filter>Header Files</Filter>
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+      <Filter>Header Files</Filter>
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+    <ClInclude Include="Timer.h">
+      <Filter>Header Files</Filter>
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+    <ClInclude Include="UDPSocket.h">
+      <Filter>Header Files</Filter>
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+    <ClInclude Include="Version.h">
+      <Filter>Header Files</Filter>
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+      <Filter>Header Files</Filter>
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+    <ClInclude Include="POCSAGNetwork.h">
+      <Filter>Header Files</Filter>
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+    <ClInclude Include="Thread.h">
+      <Filter>Header Files</Filter>
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+    <ClInclude Include="POCSAGMessage.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="Conf.cpp">
+      <Filter>Source Files</Filter>
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+    <ClCompile Include="DAPNETGateway.cpp">
+      <Filter>Source Files</Filter>
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+    <ClCompile Include="Log.cpp">
+      <Filter>Source Files</Filter>
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+    <ClCompile Include="StopWatch.cpp">
+      <Filter>Source Files</Filter>
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+    <ClCompile Include="TCPSocket.cpp">
+      <Filter>Source Files</Filter>
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+    <ClCompile Include="Timer.cpp">
+      <Filter>Source Files</Filter>
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+    <ClCompile Include="UDPSocket.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Utils.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="DAPNETNetwork.cpp">
+      <Filter>Source Files</Filter>
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+      <Filter>Source Files</Filter>
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+    <ClCompile Include="Thread.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="POCSAGMessage.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

DAPNETNetwork.cpp

@@ -0,0 +1,176 @@
+/*
+ *   Copyright (C) 2018 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "DAPNETNetwork.h"
+#include "Thread.h"
+#include "Utils.h"
+#include "Log.h"
+
+#include <cstdio>
+#include <cassert>
+#include <cstring>
+
+const unsigned int BUFFER_LENGTH = 200U;
+
+CDAPNETNetwork::CDAPNETNetwork(const std::string& address, unsigned int port, const std::string& callsign, const std::string& authKey, const char* version, bool debug) :
+m_socket(address, port),
+m_callsign(callsign),
+m_authKey(authKey),
+m_version(version),
+m_debug(debug),
+m_message(NULL)
+{
+	assert(!callsign.empty());
+	assert(!authKey.empty());
+	assert(version != NULL);
+}
+
+CDAPNETNetwork::~CDAPNETNetwork()
+{
+	delete m_message;
+}
+
+bool CDAPNETNetwork::open()
+{
+	LogMessage("Opening DAPNET connection");
+
+	return m_socket.open();
+}
+
+bool CDAPNETNetwork::login()
+{
+	LogMessage("Logging into DAPNET");
+
+	char login[200U];
+	::snprintf(login, 200, "[MMDVM %s %s %s]\r\n", m_version, m_callsign.c_str(), m_authKey.c_str());
+
+	return write((unsigned char*)login);
+}
+
+bool CDAPNETNetwork::read()
+{
+	unsigned char buffer[BUFFER_LENGTH];
+
+	int length = m_socket.read(buffer, BUFFER_LENGTH, 0U);
+	if (length < 0)
+		return false;
+	if (length == 0)
+		return true;
+
+	if (m_debug)
+		CUtils::dump(1U, "DAPNET Data Received", buffer, length);
+
+	// Turn it into a C string
+	buffer[length] = 0x00U;
+
+	if (buffer[0U] == '+') {
+		// Success
+		return true;
+	} else if (buffer[0U] == '-') {
+		// Error
+		LogWarning("An error has been reported by DAPNET");
+		return true;
+	} else if (buffer[0U] == '2') {
+		// Time synchronisation
+		char* p = ::strchr((char*)buffer, '\r');
+		if (p != NULL)
+			::strcpy(p, ":0000\r\n");
+		else
+			::strcat((char*)buffer, ":0000\r\n");
+
+		bool ok = write(buffer);
+		if (!ok)
+			return false;
+
+		return write((unsigned char*)"+\r\n");
+	} else if (buffer[0U] == '3') {
+		// ???
+		return write((unsigned char*)"+\r\n");
+	} else if (buffer[0U] == '4') {
+		// Timeslot information
+		return write((unsigned char*)"+\r\n");
+	} else if (buffer[0U] == '#') {
+		// A message
+		unsigned long id = ::strtoul((char*)buffer + 1U, NULL, 16);
+
+		char* p1 = ::strtok((char*)buffer + 4U, ":\r\n");
+		char* p2 = ::strtok(NULL, ":\r\n");
+		char* p3 = ::strtok(NULL, ":\r\n");
+		char* p4 = ::strtok(NULL, ":\r\n");
+		char* p5 = ::strtok(NULL, ":\r\n");
+
+		if (p1 == NULL || p2 == NULL || p3 == NULL || p4 == NULL || p5 == NULL) {
+			CUtils::dump(3U, "Received a malformed message from DAPNET", buffer, length);
+
+			id = (id + 1U) % 256UL;
+
+			char reply[20U];
+			::snprintf(reply, 20U, "#%02X -\r\n", id);
+			return write((unsigned char*)reply);
+		} else {
+			unsigned int type  = ::strtoul(p1, NULL, 10);
+			unsigned int speed = ::strtoul(p2, NULL, 10);
+			unsigned int addr  = ::strtoul(p3, NULL, 10);
+			unsigned int func  = ::strtoul(p4, NULL, 10);
+
+			m_message = new CPOCSAGMessage(type == 1U ? TYPE_ALPHA_NUMERIC : TYPE_NUMERIC, addr, func, (unsigned char*)p5, ::strlen(p5));
+
+			id = (id + 1U) % 256UL;
+
+			char reply[20U];
+			::snprintf(reply, 20U, "#%02X +\r\n", id);
+			return write((unsigned char*)reply);
+		}
+	} else {
+		CUtils::dump(3U, "An unknown message from DAPNET", buffer, length);
+		return write((unsigned char*)"-\r\n");
+	}
+
+	return true;
+}
+
+CPOCSAGMessage* CDAPNETNetwork::readMessage()
+{
+	if (m_message == NULL)
+		return NULL;
+
+	CPOCSAGMessage* message = m_message;
+
+	m_message = NULL;
+
+	return message;
+}
+
+void CDAPNETNetwork::close()
+{
+	m_socket.close();
+
+	LogMessage("Closing DAPNET connection");
+}
+
+bool CDAPNETNetwork::write(unsigned char* data)
+{
+	assert(data != NULL);
+
+	unsigned int length = ::strlen((char*)data);
+
+	if (m_debug)
+		CUtils::dump(1U, "DAPNET data Transmitted", data, length);
+
+	return m_socket.write(data, length);
+}

DAPNETNetwork.h

@@ -0,0 +1,55 @@
+/*
+ *   Copyright (C) 2018 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef	DAPNETNetwork_H
+#define	DAPNETNetwork_H
+
+#include "POCSAGMessage.h"
+#include "TCPSocket.h"
+#include "Timer.h"
+
+#include <cstdint>
+#include <string>
+
+class CDAPNETNetwork {
+public:
+	CDAPNETNetwork(const std::string& address, unsigned int port, const std::string& callsign, const std::string& authKey, const char* version, bool debug);
+	~CDAPNETNetwork();
+
+	bool open();
+
+	bool login();
+
+	bool read();
+
+	CPOCSAGMessage* readMessage();
+
+	void close();
+
+private:
+	CTCPSocket      m_socket;
+	std::string     m_callsign;
+	std::string     m_authKey;
+	const char*     m_version;
+	bool            m_debug;
+	CPOCSAGMessage* m_message;
+
+	bool write(unsigned char* data);
+};
+
+#endif

LICENCE

@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                       51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.

Log.cpp

@@ -0,0 +1,136 @@
+/*
+ *   Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "Log.h"
+
+#if defined(_WIN32) || defined(_WIN64)
+#include <Windows.h>
+#else
+#include <sys/time.h>
+#endif
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstdarg>
+#include <ctime>
+#include <cassert>
+#include <cstring>
+
+static unsigned int m_fileLevel = 2U;
+static std::string m_filePath;
+static std::string m_fileRoot;
+
+static FILE* m_fpLog = NULL;
+
+static unsigned int m_displayLevel = 2U;
+
+static struct tm m_tm;
+
+static char LEVELS[] = " DMIWEF";
+
+static bool LogOpen()
+{
+	if (m_fileLevel == 0U)
+		return true;
+
+	time_t now;
+	::time(&now);
+
+	struct tm* tm = ::gmtime(&now);
+
+	if (tm->tm_mday == m_tm.tm_mday && tm->tm_mon == m_tm.tm_mon && tm->tm_year == m_tm.tm_year) {
+		if (m_fpLog != NULL)
+		    return true;
+	} else {
+		if (m_fpLog != NULL)
+			::fclose(m_fpLog);
+	}
+
+	char filename[100U];
+#if defined(_WIN32) || defined(_WIN64)
+	::sprintf(filename, "%s\\%s-%04d-%02d-%02d.log", m_filePath.c_str(), m_fileRoot.c_str(), tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday);
+#else
+	::sprintf(filename, "%s/%s-%04d-%02d-%02d.log", m_filePath.c_str(), m_fileRoot.c_str(), tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday);
+#endif
+
+	m_fpLog = ::fopen(filename, "a+t");
+	m_tm = *tm;
+
+    return m_fpLog != NULL;
+}
+
+bool LogInitialise(const std::string& filePath, const std::string& fileRoot, unsigned int fileLevel, unsigned int displayLevel)
+{
+	m_filePath     = filePath;
+	m_fileRoot     = fileRoot;
+	m_fileLevel    = fileLevel;
+	m_displayLevel = displayLevel;
+    return ::LogOpen();
+}
+
+void LogFinalise()
+{
+    if (m_fpLog != NULL)
+        ::fclose(m_fpLog);
+}
+
+void Log(unsigned int level, const char* fmt, ...)
+{
+    assert(fmt != NULL);
+
+	char buffer[300U];
+#if defined(_WIN32) || defined(_WIN64)
+	SYSTEMTIME st;
+	::GetSystemTime(&st);
+
+	::sprintf(buffer, "%c: %04u-%02u-%02u %02u:%02u:%02u.%03u ", LEVELS[level], st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
+#else
+	struct timeval now;
+	::gettimeofday(&now, NULL);
+
+	struct tm* tm = ::gmtime(&now.tv_sec);
+
+	::sprintf(buffer, "%c: %04d-%02d-%02d %02d:%02d:%02d.%03lu ", LEVELS[level], tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec, now.tv_usec / 1000U);
+#endif
+
+	va_list vl;
+	va_start(vl, fmt);
+
+	::vsprintf(buffer + ::strlen(buffer), fmt, vl);
+
+	va_end(vl);
+
+	if (level >= m_fileLevel && m_fileLevel != 0U) {
+		bool ret = ::LogOpen();
+		if (!ret)
+			return;
+
+		::fprintf(m_fpLog, "%s\n", buffer);
+		::fflush(m_fpLog);
+	}
+
+	if (level >= m_displayLevel && m_displayLevel != 0U) {
+		::fprintf(stdout, "%s\n", buffer);
+		::fflush(stdout);
+	}
+
+	if (level == 6U) {		// Fatal
+        ::fclose(m_fpLog);
+        exit(1);
+    }
+}

Log.h

@@ -0,0 +1,36 @@
+/*
+ *   Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if !defined(LOG_H)
+#define	LOG_H
+
+#include <string>
+
+#define	LogDebug(fmt, ...)	Log(1U, fmt, ##__VA_ARGS__)
+#define	LogMessage(fmt, ...)	Log(2U, fmt, ##__VA_ARGS__)
+#define	LogInfo(fmt, ...)	Log(3U, fmt, ##__VA_ARGS__)
+#define	LogWarning(fmt, ...)	Log(4U, fmt, ##__VA_ARGS__)
+#define	LogError(fmt, ...)	Log(5U, fmt, ##__VA_ARGS__)
+#define	LogFatal(fmt, ...)	Log(6U, fmt, ##__VA_ARGS__)
+
+extern void Log(unsigned int level, const char* fmt, ...);
+
+extern bool LogInitialise(const std::string& filePath, const std::string& fileRoot, unsigned int fileLevel, unsigned int displayLevel);
+extern void LogFinalise();
+
+#endif

Makefile

@@ -0,0 +1,18 @@
+CC      = gcc
+CXX     = g++
+CFLAGS  = -g -O3 -Wall -std=c++0x -pthread
+LIBS    = -lm -lpthread
+LDFLAGS = -g
+
+OBJECTS = Conf.o DAPNETGateway.o DAPNETNetwork.o Log.o POCSAGMessage.o POCSAGNetwork.o StopWatch.o TCPSocket.o Thread.o Timer.o UDPSocket.o Utils.o
+
+all:		DAPNETGateway
+
+DAPNETGateway:	$(OBJECTS)
+		$(CXX) $(OBJECTS) $(CFLAGS) $(LIBS) -o DAPNETGateway
+
+%.o: %.cpp
+		$(CXX) $(CFLAGS) -c -o $@ $<
+
+clean:
+		$(RM) DAPNETGateway *.o *.d *.bak *~

POCSAGMessage.cpp

@@ -0,0 +1,43 @@
+/*
+*   Copyright (C) 2018 by Jonathan Naylor G4KLX
+*
+*   This program is free software; you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation; either version 2 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that it will be useful,
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*   GNU General Public License for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program; if not, write to the Free Software
+*   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "POCSAGMessage.h"
+
+#include <cstdio>
+#include <cassert>
+
+CPOCSAGMessage::CPOCSAGMessage(POCSAG_TYPE type, unsigned int ric, unsigned char functional, unsigned char* message, unsigned int length) :
+m_type(type),
+m_ric(ric),
+m_functional(functional),
+m_message(NULL),
+m_length(length)
+{
+	assert(ric > 0U);
+	assert(functional < 4U);
+	assert(message != NULL);
+	assert(length > 0U);
+
+	m_message = new unsigned char[length];
+	::memcpy(m_message, message, length);
+}
+
+CPOCSAGMessage::~CPOCSAGMessage()
+{
+	delete[] m_message;
+}

POCSAGMessage.h

@@ -0,0 +1,42 @@
+/*
+*   Copyright (C) 2018 by Jonathan Naylor G4KLX
+*
+*   This program is free software; you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation; either version 2 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that it will be useful,
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*   GNU General Public License for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program; if not, write to the Free Software
+*   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef	POCSAGMessage_H
+#define	POCSAGMessage_H
+
+#include <cstdint>
+#include <string>
+
+enum POCSAG_TYPE {
+	TYPE_ALPHA_NUMERIC,
+	TYPE_NUMERIC
+};
+
+class CPOCSAGMessage {
+public:
+	CPOCSAGMessage(POCSAG_TYPE type, unsigned int ric, unsigned char functional, unsigned char* message, unsigned int length);
+	~CPOCSAGMessage();
+
+	POCSAG_TYPE    m_type;
+	unsigned int   m_ric;
+	unsigned char  m_functional;
+	unsigned char* m_message;
+	unsigned int   m_length;
+};
+
+#endif

POCSAGNetwork.cpp

@@ -0,0 +1,102 @@
+/*
+ *   Copyright (C) 2018 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "POCSAGNetwork.h"
+#include "Utils.h"
+#include "Log.h"
+
+#include <cstdio>
+#include <cassert>
+#include <cstring>
+
+
+CPOCSAGNetwork::CPOCSAGNetwork(const std::string& localAddress, unsigned int localPort, const std::string& remoteAddress, unsigned int remotePort, bool debug) :
+m_socket(localAddress, localPort),
+m_address(),
+m_port(remotePort),
+m_debug(debug)
+{
+	assert(!remoteAddress.empty());
+	assert(remotePort > 0U);
+
+	m_address = CUDPSocket::lookup(remoteAddress);
+}
+
+CPOCSAGNetwork::~CPOCSAGNetwork()
+{
+}
+
+bool CPOCSAGNetwork::open()
+{
+	LogMessage("Opening POCSAG network connection");
+
+	return m_socket.open();
+}
+
+bool CPOCSAGNetwork::write(CPOCSAGMessage* message)
+{
+	assert(message != NULL);
+
+	unsigned char data[200U];
+	data[0U] = 'P';
+	data[1U] = 'O';
+	data[2U] = 'C';
+	data[3U] = 'S';
+	data[4U] = 'A';
+	data[5U] = 'G';
+
+	data[6U] = message->m_ric >> 16;
+	data[7U] = message->m_ric >> 8;
+	data[8U] = message->m_ric >> 0;
+
+	data[9U]  = (message->m_type == TYPE_ALPHA_NUMERIC) ? 0x01U : 0x00U;
+	data[9U] |= (message->m_functional << 1) & 0x06U;
+
+	::memcpy(data + 10U, message->m_message, message->m_length);
+
+	if (m_debug)
+		CUtils::dump(1U, "POCSAG Network Data Sent", data, message->m_length + 10U);
+
+	return m_socket.write(data, message->m_length + 10U, m_address, m_port);
+}
+
+unsigned int CPOCSAGNetwork::read(unsigned char* data)
+{
+	assert(data != NULL);
+
+	in_addr address;
+	unsigned int port;
+	int length = m_socket.read(data, 1U, address, port);
+	if (length <= 0)
+		return 0U;
+
+	if (address.s_addr != m_address.s_addr || port != m_port)
+		return 0U;
+
+	if (m_debug)
+		CUtils::dump(1U, "POCSAG Network Data Received", data, length);
+
+	return length;
+}
+
+void CPOCSAGNetwork::close()
+{
+	m_socket.close();
+
+	LogMessage("Closing POCSAG network connection");
+}

POCSAGNetwork.h

@@ -0,0 +1,48 @@
+/*
+ *   Copyright (C) 2018 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef	POCSAGNetwork_H
+#define	POCSAGNetwork_H
+
+#include "POCSAGMessage.h"
+#include "UDPSocket.h"
+
+#include <cstdint>
+#include <string>
+
+class CPOCSAGNetwork {
+public:
+	CPOCSAGNetwork(const std::string& localAddress, unsigned int localPort, const std::string& remoteAddress, unsigned int remotePort, bool debug);
+	~CPOCSAGNetwork();
+
+	bool open();
+
+	bool write(CPOCSAGMessage* message);
+
+	unsigned int read(unsigned char* data);
+
+	void close();
+
+private:
+	CUDPSocket   m_socket;
+	in_addr      m_address;
+	unsigned int m_port;
+	bool         m_debug;
+};
+
+#endif

README.md

@@ -0,0 +1,3 @@
+The DAPNET Gateway links the MMDVM Host to the DAPNET network to receive paging messages.
+
+The messages are buffered by the gateway when the host is busy with other modes, and then sends them to the host in priority order once the host becomes idle.

StopWatch.cpp

@@ -0,0 +1,84 @@
+/*
+ *   Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "StopWatch.h"
+
+#if defined(_WIN32) || defined(_WIN64)
+
+CStopWatch::CStopWatch() :
+m_frequency(),
+m_start()
+{
+	::QueryPerformanceFrequency(&m_frequency);
+}
+
+CStopWatch::~CStopWatch()
+{
+}
+
+unsigned long CStopWatch::start()
+{
+	::QueryPerformanceCounter(&m_start);
+
+	return (unsigned long)(m_start.QuadPart / m_frequency.QuadPart);
+}
+
+unsigned int CStopWatch::elapsed()
+{
+	LARGE_INTEGER now;
+	::QueryPerformanceCounter(&now);
+
+	LARGE_INTEGER temp;
+	temp.QuadPart = (now.QuadPart - m_start.QuadPart) * 1000;
+
+	return (unsigned int)(temp.QuadPart / m_frequency.QuadPart);
+}
+
+#else
+
+#include <cstdio>
+
+CStopWatch::CStopWatch() :
+m_start()
+{
+}
+
+CStopWatch::~CStopWatch()
+{
+}
+
+unsigned long CStopWatch::start()
+{
+	::gettimeofday(&m_start, NULL);
+
+	return m_start.tv_usec;
+}
+
+unsigned int CStopWatch::elapsed()
+{
+	struct timeval now;
+	::gettimeofday(&now, NULL);
+
+	unsigned int elapsed = (now.tv_sec - m_start.tv_sec) * 1000U;
+	elapsed += now.tv_usec / 1000U;
+	elapsed -= m_start.tv_usec / 1000U;
+
+	return elapsed;
+}
+
+#endif

StopWatch.h

@@ -0,0 +1,46 @@
+/*
+ *   Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if !defined(STOPWATCH_H)
+#define	STOPWATCH_H
+
+#if defined(_WIN32) || defined(_WIN64)
+#include <windows.h>
+#else
+#include <sys/time.h>
+#endif
+
+class CStopWatch
+{
+public:
+	CStopWatch();
+	~CStopWatch();
+
+	unsigned long start();
+	unsigned int  elapsed();
+
+private:
+#if defined(_WIN32) || defined(_WIN64)
+	LARGE_INTEGER  m_frequency;
+	LARGE_INTEGER  m_start;
+#else
+	struct timeval m_start;
+#endif
+};
+
+#endif

TCPSocket.cpp

@@ -0,0 +1,232 @@
+/*
+ *   Copyright (C) 2010-2013,2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "TCPSocket.h"
+#include "UDPSocket.h"
+#include "Log.h"
+
+#include <cstdio>
+#include <cassert>
+#include <cstring>
+
+#if defined(_WIN32) || defined(_WIN64)
+typedef int ssize_t;
+#else
+#include <cerrno>
+#endif
+
+CTCPSocket::CTCPSocket(const std::string& address, unsigned int port) :
+m_address(address),
+m_port(port),
+m_fd(-1)
+{
+	assert(!address.empty());
+	assert(port > 0U);
+
+#if defined(_WIN32) || defined(_WIN64)
+	WSAData data;
+	int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
+	if (wsaRet != 0)
+		LogError("Error from WSAStartup");
+#endif
+}
+
+CTCPSocket::~CTCPSocket()
+{
+#if defined(_WIN32) || defined(_WIN64)
+	::WSACleanup();
+#endif
+}
+
+bool CTCPSocket::open()
+{
+	if (m_fd != -1)
+		return true;
+
+	if (m_address.empty() || m_port == 0U)
+		return false;
+
+	m_fd = ::socket(PF_INET, SOCK_STREAM, 0);
+	if (m_fd < 0) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Cannot create the TCP client socket, err=%d", ::GetLastError());
+#else
+		LogError("Cannot create the TCP client socket, err=%d", errno);
+#endif
+		return false;
+	}
+
+	struct sockaddr_in addr;
+	::memset(&addr, 0x00, sizeof(struct sockaddr_in));
+	addr.sin_family = AF_INET;
+	addr.sin_port   = htons(m_port);
+	addr.sin_addr   = CUDPSocket::lookup(m_address);
+
+	if (addr.sin_addr.s_addr == INADDR_NONE) {
+		close();
+		return false;
+	}
+
+	if (::connect(m_fd, (sockaddr*)&addr, sizeof(struct sockaddr_in)) == -1) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Cannot connect the TCP client socket, err=%d", ::GetLastError());
+#else
+		LogError("Cannot connect the TCP client socket, err=%d", errno);
+#endif
+		close();
+		return false;
+	}
+
+	int noDelay = 1;
+	if (::setsockopt(m_fd, IPPROTO_TCP, TCP_NODELAY, (char *)&noDelay, sizeof(noDelay)) == -1) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Cannot set the TCP client socket option, err=%d", ::GetLastError());
+#else
+		LogError("Cannot set the TCP client socket option, err=%d", errno);
+#endif
+		close();
+		return false;
+	}
+
+	return true;
+}
+
+int CTCPSocket::read(unsigned char* buffer, unsigned int length, unsigned int secs, unsigned int msecs)
+{
+	assert(buffer != NULL);
+	assert(length > 0U);
+	assert(m_fd != -1);
+
+	// Check that the recv() won't block
+	fd_set readFds;
+	FD_ZERO(&readFds);
+#if defined(_WIN32) || defined(_WIN64)
+	FD_SET((unsigned int)m_fd, &readFds);
+#else
+	FD_SET(m_fd, &readFds);
+#endif
+
+	// Return after timeout
+	timeval tv;
+	tv.tv_sec  = secs;
+	tv.tv_usec = msecs * 1000;
+
+	int ret = ::select(m_fd + 1, &readFds, NULL, NULL, &tv);
+	if (ret < 0) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Error returned from TCP client select, err=%d", ::GetLastError());
+#else
+		LogError("Error returned from TCP client select, err=%d", errno);
+#endif
+		return -1;
+	}
+
+#if defined(_WIN32) || defined(_WIN64)
+	if (!FD_ISSET((unsigned int)m_fd, &readFds))
+		return 0;
+#else
+	if (!FD_ISSET(m_fd, &readFds))
+		return 0;
+#endif
+
+	ssize_t len = ::recv(m_fd, (char*)buffer, length, 0);
+	if (len == 0) {
+		return -2;
+	} else if (len < 0) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Error returned from recv, err=%d", ::GetLastError());
+#else
+		LogError("Error returned from recv, err=%d", errno);
+#endif
+		return -1;
+	}
+
+	return len;
+}
+
+int CTCPSocket::readLine(std::string& line, unsigned int secs)
+{
+	// Maybe there is a better way to do this like reading blocks, pushing them for later calls
+	// Nevermind, we'll read one char at a time for the time being.
+	int resultCode;
+	int len = 0;
+
+	line.clear();
+
+	char c[2U];
+	c[1U] = 0x00U;
+
+	do
+	{
+		resultCode = read((unsigned char*)c, 1U, secs);
+		if (resultCode == 1){
+			line.append(c);
+			len++;
+		}
+	} while (c[0U] != '\n' && resultCode == 1);
+
+	return resultCode <= 0 ? resultCode : len;
+}
+
+bool CTCPSocket::write(const unsigned char* buffer, unsigned int length)
+{
+	assert(buffer != NULL);
+	assert(length > 0U);
+	assert(m_fd != -1);
+
+	ssize_t ret = ::send(m_fd, (char *)buffer, length, 0);
+	if (ret != ssize_t(length)) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Error returned from send, err=%d", ::GetLastError());
+#else
+		LogError("Error returned from send, err=%d", errno);
+#endif
+		return false;
+	}
+
+	return true;
+}
+
+bool CTCPSocket::writeLine(const std::string& line)
+{
+	std::string lineCopy(line);
+	if (lineCopy.length() > 0 && lineCopy.at(lineCopy.length() - 1) != '\n')
+		lineCopy.append("\n");
+	
+	//stupidly write one char after the other
+	size_t len = lineCopy.length();
+	bool result = true;
+	for (size_t i = 0U; i < len && result; i++){
+		unsigned char c = lineCopy.at(i);
+		result = write(&c , 1);
+	}
+
+	return result;
+}
+
+void CTCPSocket::close()
+{
+	if (m_fd != -1) {
+#if defined(_WIN32) || defined(_WIN64)
+		::closesocket(m_fd);
+#else
+		::close(m_fd);
+#endif
+		m_fd = -1;
+	}
+}

TCPSocket.h

@@ -0,0 +1,58 @@
+/*
+ *   Copyright (C) 2010,2011,2012,2013,2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef TCPSocket_H
+#define TCPSocket_H
+
+#if !defined(_WIN32) && !defined(_WIN64)
+#include <netdb.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#else
+#include <winsock.h>
+#endif
+
+#include <string>
+
+class CTCPSocket {
+public:
+	CTCPSocket(const std::string& address, unsigned int port);
+	~CTCPSocket();
+
+	bool open();
+
+	int  read(unsigned char* buffer, unsigned int length, unsigned int secs, unsigned int msecs = 0U);
+	int readLine(std::string& line, unsigned int secs);
+	bool write(const unsigned char* buffer, unsigned int length);
+	bool writeLine(const std::string& line);
+
+	void close();
+
+private:
+	std::string    m_address;
+	unsigned short m_port;
+	int            m_fd;
+};
+
+#endif

Thread.cpp

@@ -0,0 +1,101 @@
+/*
+ *   Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "Thread.h"
+
+#if defined(_WIN32) || defined(_WIN64)
+
+CThread::CThread() :
+m_handle()
+{
+}
+
+CThread::~CThread()
+{
+}
+
+bool CThread::run()
+{
+  m_handle = ::CreateThread(NULL, 0, &helper, this, 0, NULL);
+
+  return m_handle != NULL;
+}
+
+
+void CThread::wait()
+{
+  ::WaitForSingleObject(m_handle, INFINITE);
+
+  ::CloseHandle(m_handle);
+}
+
+
+DWORD CThread::helper(LPVOID arg)
+{
+  CThread* p = (CThread*)arg;
+
+  p->entry();
+
+  return 0UL;
+}
+
+void CThread::sleep(unsigned int ms)
+{
+	::Sleep(ms);
+}
+
+#else
+
+#include <unistd.h>
+
+CThread::CThread() :
+m_thread()
+{
+}
+
+CThread::~CThread()
+{
+}
+
+bool CThread::run()
+{
+  return ::pthread_create(&m_thread, NULL, helper, this) == 0;
+}
+
+
+void CThread::wait()
+{
+  ::pthread_join(m_thread, NULL);
+}
+
+
+void* CThread::helper(void* arg)
+{
+  CThread* p = (CThread*)arg;
+
+  p->entry();
+
+  return NULL;
+}
+
+void CThread::sleep(unsigned int ms)
+{
+	::usleep(ms * 1000);
+}
+
+#endif

Thread.h

@@ -0,0 +1,56 @@
+/*
+ *   Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if !defined(THREAD_H)
+#define	THREAD_H
+
+#if defined(_WIN32) || defined(_WIN64)
+#include <windows.h>
+#else
+#include <pthread.h>
+#endif
+
+class CThread
+{
+public:
+  CThread();
+  virtual ~CThread();
+
+  virtual bool run();
+
+  virtual void entry() = 0;
+
+  virtual void wait();
+
+  static void sleep(unsigned int ms);
+
+private:
+#if defined(_WIN32) || defined(_WIN64)
+  HANDLE    m_handle;
+#else
+  pthread_t m_thread;
+#endif
+
+#if defined(_WIN32) || defined(_WIN64)
+  static DWORD __stdcall helper(LPVOID arg);
+#else
+  static void* helper(void* arg);
+#endif
+};
+
+#endif

Timer.cpp

@@ -0,0 +1,68 @@
+/*
+ *   Copyright (C) 2009,2010,2015 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "Timer.h"
+
+#include <cstdio>
+#include <cassert>
+
+CTimer::CTimer(unsigned int ticksPerSec, unsigned int secs, unsigned int msecs) :
+m_ticksPerSec(ticksPerSec),
+m_timeout(0U),
+m_timer(0U)
+{
+	assert(ticksPerSec > 0U);
+
+	if (secs > 0U || msecs > 0U) {
+		// m_timeout = ((secs * 1000U + msecs) * m_ticksPerSec) / 1000U + 1U;
+		unsigned long long temp = (secs * 1000ULL + msecs) * m_ticksPerSec;
+		m_timeout = (unsigned int)(temp / 1000ULL + 1ULL);
+	}
+}
+
+CTimer::~CTimer()
+{
+}
+
+void CTimer::setTimeout(unsigned int secs, unsigned int msecs)
+{
+	if (secs > 0U || msecs > 0U) {
+		// m_timeout = ((secs * 1000U + msecs) * m_ticksPerSec) / 1000U + 1U;
+		unsigned long long temp = (secs * 1000ULL + msecs) * m_ticksPerSec;
+		m_timeout = (unsigned int)(temp / 1000ULL + 1ULL);
+	} else {
+		m_timeout = 0U;
+		m_timer = 0U;
+	}
+}
+
+unsigned int CTimer::getTimeout() const
+{
+	if (m_timeout == 0U)
+		return 0U;
+
+	return (m_timeout - 1U) / m_ticksPerSec;
+}
+
+unsigned int CTimer::getTimer() const
+{
+	if (m_timer == 0U)
+		return 0U;
+
+	return (m_timer - 1U) / m_ticksPerSec;
+}

Timer.h

@@ -0,0 +1,89 @@
+/*
+ *   Copyright (C) 2009,2010,2011,2014 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef	Timer_H
+#define	Timer_H
+
+class CTimer {
+public:
+	CTimer(unsigned int ticksPerSec, unsigned int secs = 0U, unsigned int msecs = 0U);
+	~CTimer();
+
+	void setTimeout(unsigned int secs, unsigned int msecs = 0U);
+
+	unsigned int getTimeout() const;
+	unsigned int getTimer() const;
+
+	unsigned int getRemaining()
+	{
+		if (m_timeout == 0U || m_timer == 0U)
+			return 0U;
+
+		if (m_timer >= m_timeout)
+			return 0U;
+
+		return (m_timeout - m_timer) / m_ticksPerSec;
+	}
+
+	bool isRunning()
+	{
+		return m_timer > 0U;
+	}
+
+	void start(unsigned int secs, unsigned int msecs = 0U)
+	{
+		setTimeout(secs, msecs);
+
+		start();
+	}
+
+	void start()
+	{
+		if (m_timeout > 0U)
+			m_timer = 1U;
+	}
+
+	void stop()
+	{
+		m_timer = 0U;
+	}
+
+	bool hasExpired()
+	{
+		if (m_timeout == 0U || m_timer == 0U)
+			return false;
+
+		if (m_timer >= m_timeout)
+			return true;
+
+		return false;
+	}
+
+	void clock(unsigned int ticks = 1U)
+	{
+		if (m_timer > 0U && m_timeout > 0U)
+			m_timer += ticks;
+	}
+
+private:
+	unsigned int m_ticksPerSec;
+	unsigned int m_timeout;
+	unsigned int m_timer;
+};
+
+#endif

UDPSocket.cpp

@@ -0,0 +1,264 @@
+/*
+ *   Copyright (C) 2006-2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "UDPSocket.h"
+#include "Log.h"
+
+#include <cassert>
+
+#if !defined(_WIN32) && !defined(_WIN64)
+#include <cerrno>
+#include <cstring>
+#endif
+
+
+CUDPSocket::CUDPSocket(const std::string& address, unsigned int port) :
+m_address(address),
+m_port(port),
+m_fd(-1)
+{
+	assert(!address.empty());
+
+#if defined(_WIN32) || defined(_WIN64)
+	WSAData data;
+	int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
+	if (wsaRet != 0)
+		LogError("Error from WSAStartup");
+#endif
+}
+
+CUDPSocket::CUDPSocket(unsigned int port) :
+m_address(),
+m_port(port),
+m_fd(-1)
+{
+#if defined(_WIN32) || defined(_WIN64)
+	WSAData data;
+	int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
+	if (wsaRet != 0)
+		LogError("Error from WSAStartup");
+#endif
+}
+
+CUDPSocket::~CUDPSocket()
+{
+#if defined(_WIN32) || defined(_WIN64)
+	::WSACleanup();
+#endif
+}
+
+in_addr CUDPSocket::lookup(const std::string& hostname)
+{
+	in_addr addr;
+#if defined(_WIN32) || defined(_WIN64)
+	unsigned long address = ::inet_addr(hostname.c_str());
+	if (address != INADDR_NONE && address != INADDR_ANY) {
+		addr.s_addr = address;
+		return addr;
+	}
+
+	struct hostent* hp = ::gethostbyname(hostname.c_str());
+	if (hp != NULL) {
+		::memcpy(&addr, hp->h_addr_list[0], sizeof(struct in_addr));
+		return addr;
+	}
+
+	LogError("Cannot find address for host %s", hostname.c_str());
+
+	addr.s_addr = INADDR_NONE;
+	return addr;
+#else
+	in_addr_t address = ::inet_addr(hostname.c_str());
+	if (address != in_addr_t(-1)) {
+		addr.s_addr = address;
+		return addr;
+	}
+
+	struct hostent* hp = ::gethostbyname(hostname.c_str());
+	if (hp != NULL) {
+		::memcpy(&addr, hp->h_addr_list[0], sizeof(struct in_addr));
+		return addr;
+	}
+
+	LogError("Cannot find address for host %s", hostname.c_str());
+
+	addr.s_addr = INADDR_NONE;
+	return addr;
+#endif
+}
+
+bool CUDPSocket::open()
+{
+	m_fd = ::socket(PF_INET, SOCK_DGRAM, 0);
+	if (m_fd < 0) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Cannot create the UDP socket, err: %lu", ::GetLastError());
+#else
+		LogError("Cannot create the UDP socket, err: %d", errno);
+#endif
+		return false;
+	}
+
+	if (m_port > 0U) {
+		sockaddr_in addr;
+		::memset(&addr, 0x00, sizeof(sockaddr_in));
+		addr.sin_family      = AF_INET;
+		addr.sin_port        = htons(m_port);
+		addr.sin_addr.s_addr = htonl(INADDR_ANY);
+
+		if (!m_address.empty()) {
+#if defined(_WIN32) || defined(_WIN64)
+			addr.sin_addr.s_addr = ::inet_addr(m_address.c_str());
+#else
+			addr.sin_addr.s_addr = ::inet_addr(m_address.c_str());
+#endif
+			if (addr.sin_addr.s_addr == INADDR_NONE) {
+				LogError("The local address is invalid - %s", m_address.c_str());
+				return false;
+			}
+		}
+
+		int reuse = 1;
+		if (::setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) {
+#if defined(_WIN32) || defined(_WIN64)
+			LogError("Cannot set the UDP socket option, err: %lu", ::GetLastError());
+#else
+			LogError("Cannot set the UDP socket option, err: %d", errno);
+#endif
+			return false;
+		}
+
+		if (::bind(m_fd, (sockaddr*)&addr, sizeof(sockaddr_in)) == -1) {
+#if defined(_WIN32) || defined(_WIN64)
+			LogError("Cannot bind the UDP address, err: %lu", ::GetLastError());
+#else
+			LogError("Cannot bind the UDP address, err: %d", errno);
+#endif
+			return false;
+		}
+
+		LogInfo("Opening UDP port on %u", m_port);
+	}
+
+	return true;
+}
+
+int CUDPSocket::read(unsigned char* buffer, unsigned int length, in_addr& address, unsigned int& port)
+{
+	assert(buffer != NULL);
+	assert(length > 0U);
+
+	// Check that the readfrom() won't block
+	fd_set readFds;
+	FD_ZERO(&readFds);
+#if defined(_WIN32) || defined(_WIN64)
+	FD_SET((unsigned int)m_fd, &readFds);
+#else
+	FD_SET(m_fd, &readFds);
+#endif
+
+	// Return immediately
+	timeval tv;
+	tv.tv_sec  = 0L;
+	tv.tv_usec = 0L;
+
+	int ret = ::select(m_fd + 1, &readFds, NULL, NULL, &tv);
+	if (ret < 0) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Error returned from UDP select, err: %lu", ::GetLastError());
+#else
+		LogError("Error returned from UDP select, err: %d", errno);
+#endif
+		return -1;
+	}
+
+	if (ret == 0)
+		return 0;
+
+	sockaddr_in addr;
+#if defined(_WIN32) || defined(_WIN64)
+	int size = sizeof(sockaddr_in);
+#else
+	socklen_t size = sizeof(sockaddr_in);
+#endif
+
+#if defined(_WIN32) || defined(_WIN64)
+	int len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&addr, &size);
+#else
+	ssize_t len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&addr, &size);
+#endif
+	if (len <= 0) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Error returned from recvfrom, err: %lu", ::GetLastError());
+#else
+		LogError("Error returned from recvfrom, err: %d", errno);
+#endif
+		return -1;
+	}
+
+	address = addr.sin_addr;
+	port    = ntohs(addr.sin_port);
+
+	return len;
+}
+
+bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const in_addr& address, unsigned int port)
+{
+	assert(buffer != NULL);
+	assert(length > 0U);
+
+	sockaddr_in addr;
+	::memset(&addr, 0x00, sizeof(sockaddr_in));
+
+	addr.sin_family = AF_INET;
+	addr.sin_addr   = address;
+	addr.sin_port   = htons(port);
+
+#if defined(_WIN32) || defined(_WIN64)
+	int ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&addr, sizeof(sockaddr_in));
+#else
+	ssize_t ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&addr, sizeof(sockaddr_in));
+#endif
+	if (ret < 0) {
+#if defined(_WIN32) || defined(_WIN64)
+		LogError("Error returned from sendto, err: %lu", ::GetLastError());
+#else
+		LogError("Error returned from sendto, err: %d", errno);
+#endif
+		return false;
+	}
+
+#if defined(_WIN32) || defined(_WIN64)
+	if (ret != int(length))
+		return false;
+#else
+	if (ret != ssize_t(length))
+		return false;
+#endif
+
+	return true;
+}
+
+void CUDPSocket::close()
+{
+#if defined(_WIN32) || defined(_WIN64)
+	::closesocket(m_fd);
+#else
+	::close(m_fd);
+#endif
+}

UDPSocket.h

@@ -0,0 +1,58 @@
+/*
+ *   Copyright (C) 2009-2011,2013,2015,2016 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef UDPSocket_H
+#define UDPSocket_H
+
+#include <string>
+
+#if !defined(_WIN32) && !defined(_WIN64)
+#include <netdb.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#else
+#include <winsock.h>
+#endif
+
+class CUDPSocket {
+public:
+	CUDPSocket(const std::string& address, unsigned int port = 0U);
+	CUDPSocket(unsigned int port = 0U);
+	~CUDPSocket();
+
+	bool open();
+
+	int  read(unsigned char* buffer, unsigned int length, in_addr& address, unsigned int& port);
+	bool write(const unsigned char* buffer, unsigned int length, const in_addr& address, unsigned int port);
+
+	void close();
+
+	static in_addr lookup(const std::string& hostName);
+
+private:
+	std::string    m_address;
+	unsigned short m_port;
+	int            m_fd;
+};
+
+#endif

Utils.cpp

@@ -0,0 +1,146 @@
+/*
+ *	Copyright (C) 2009,2014,2015,2016 Jonathan Naylor, G4KLX
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; version 2 of the License.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ */
+
+#include "Utils.h"
+#include "Log.h"
+
+#include <cstdio>
+#include <cassert>
+
+void CUtils::dump(const std::string& title, const unsigned char* data, unsigned int length)
+{
+	assert(data != NULL);
+
+	dump(2U, title, data, length);
+}
+
+void CUtils::dump(int level, const std::string& title, const unsigned char* data, unsigned int length)
+{
+	assert(data != NULL);
+
+	::Log(level, "%s", title.c_str());
+
+	unsigned int offset = 0U;
+
+	while (length > 0U) {
+		std::string output;
+
+		unsigned int bytes = (length > 16U) ? 16U : length;
+
+		for (unsigned i = 0U; i < bytes; i++) {
+			char temp[10U];
+			::sprintf(temp, "%02X ", data[offset + i]);
+			output += temp;
+		}
+
+		for (unsigned int i = bytes; i < 16U; i++)
+			output += "   ";
+
+		output += "   *";
+
+		for (unsigned i = 0U; i < bytes; i++) {
+			unsigned char c = data[offset + i];
+
+			if (::isprint(c))
+				output += c;
+			else
+				output += '.';
+		}
+
+		output += '*';
+
+		::Log(level, "%04X:  %s", offset, output.c_str());
+
+		offset += 16U;
+
+		if (length >= 16U)
+			length -= 16U;
+		else
+			length = 0U;
+	}
+}
+
+void CUtils::dump(const std::string& title, const bool* bits, unsigned int length)
+{
+	assert(bits != NULL);
+
+	dump(2U, title, bits, length);
+}
+
+void CUtils::dump(int level, const std::string& title, const bool* bits, unsigned int length)
+{
+	assert(bits != NULL);
+
+	unsigned char bytes[100U];
+	unsigned int nBytes = 0U;
+	for (unsigned int n = 0U; n < length; n += 8U, nBytes++)
+		bitsToByteBE(bits + n, bytes[nBytes]);
+
+	dump(level, title, bytes, nBytes);
+}
+
+void CUtils::byteToBitsBE(unsigned char byte, bool* bits)
+{
+	assert(bits != NULL);
+
+	bits[0U] = (byte & 0x80U) == 0x80U;
+	bits[1U] = (byte & 0x40U) == 0x40U;
+	bits[2U] = (byte & 0x20U) == 0x20U;
+	bits[3U] = (byte & 0x10U) == 0x10U;
+	bits[4U] = (byte & 0x08U) == 0x08U;
+	bits[5U] = (byte & 0x04U) == 0x04U;
+	bits[6U] = (byte & 0x02U) == 0x02U;
+	bits[7U] = (byte & 0x01U) == 0x01U;
+}
+
+void CUtils::byteToBitsLE(unsigned char byte, bool* bits)
+{
+	assert(bits != NULL);
+
+	bits[0U] = (byte & 0x01U) == 0x01U;
+	bits[1U] = (byte & 0x02U) == 0x02U;
+	bits[2U] = (byte & 0x04U) == 0x04U;
+	bits[3U] = (byte & 0x08U) == 0x08U;
+	bits[4U] = (byte & 0x10U) == 0x10U;
+	bits[5U] = (byte & 0x20U) == 0x20U;
+	bits[6U] = (byte & 0x40U) == 0x40U;
+	bits[7U] = (byte & 0x80U) == 0x80U;
+}
+
+void CUtils::bitsToByteBE(const bool* bits, unsigned char& byte)
+{
+	assert(bits != NULL);
+
+	byte  = bits[0U] ? 0x80U : 0x00U;
+	byte |= bits[1U] ? 0x40U : 0x00U;
+	byte |= bits[2U] ? 0x20U : 0x00U;
+	byte |= bits[3U] ? 0x10U : 0x00U;
+	byte |= bits[4U] ? 0x08U : 0x00U;
+	byte |= bits[5U] ? 0x04U : 0x00U;
+	byte |= bits[6U] ? 0x02U : 0x00U;
+	byte |= bits[7U] ? 0x01U : 0x00U;
+}
+
+void CUtils::bitsToByteLE(const bool* bits, unsigned char& byte)
+{
+	assert(bits != NULL);
+
+	byte  = bits[0U] ? 0x01U : 0x00U;
+	byte |= bits[1U] ? 0x02U : 0x00U;
+	byte |= bits[2U] ? 0x04U : 0x00U;
+	byte |= bits[3U] ? 0x08U : 0x00U;
+	byte |= bits[4U] ? 0x10U : 0x00U;
+	byte |= bits[5U] ? 0x20U : 0x00U;
+	byte |= bits[6U] ? 0x40U : 0x00U;
+	byte |= bits[7U] ? 0x80U : 0x00U;
+}

Utils.h

@@ -0,0 +1,36 @@
+/*
+ *	Copyright (C) 2009,2014,2015 by Jonathan Naylor, G4KLX
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; version 2 of the License.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ */
+
+#ifndef	Utils_H
+#define	Utils_H
+
+#include <string>
+
+class CUtils {
+public:
+	static void dump(const std::string& title, const unsigned char* data, unsigned int length);
+	static void dump(int level, const std::string& title, const unsigned char* data, unsigned int length);
+
+	static void dump(const std::string& title, const bool* bits, unsigned int length);
+	static void dump(int level, const std::string& title, const bool* bits, unsigned int length);
+
+	static void byteToBitsBE(unsigned char byte, bool* bits);
+	static void byteToBitsLE(unsigned char byte, bool* bits);
+
+	static void bitsToByteBE(const bool* bits, unsigned char& byte);
+	static void bitsToByteLE(const bool* bits, unsigned char& byte);
+
+private:
+};
+
+#endif

Version.h

@@ -0,0 +1,24 @@
+/*
+ *   Copyright (C) 2018 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if !defined(VERSION_H)
+#define	VERSION_H
+
+const char* VERSION = "20180605";
+
+#endif