file struturce changed.

src/lib/ebus/Makefile.am

@@ -0,0 +1,33 @@
+AM_CXXFLAGS = -fpic \
+	      -Wall \
+	      -Wextra
+
+noinst_LIBRARIES = libebus.a
+
+libebus_a_SOURCES = result.cpp \
+		    result.h \
+		    symbol.cpp \
+		    symbol.h \
+		    data.cpp \
+		    data.h \
+		    port.cpp \
+		    port.h \
+		    buscommand.cpp \
+		    buscommand.h \
+		    bus.cpp \
+		    bus.h \
+		    command.cpp \
+		    command.h \
+		    commands.cpp \
+		    commands.h \
+		    configfile.cpp \
+		    configfile.h \
+		    dump.cpp \
+		    dump.h \
+		    decode.cpp \
+		    decode.h \
+		    encode.cpp \
+		    encode.h
+
+distclean-local:
+	-rm -f Makefile.in

src/lib/ebus/bus.cpp

@@ -0,0 +1,388 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "bus.h"
+#include <iostream>
+#include <iomanip>
+
+namespace libebus
+{
+
+
+Bus::Bus(const std::string deviceName, const bool noDeviceCheck, const long recvTimeout,
+	const std::string dumpFile, const long dumpSize, const bool dumpState)
+	: m_sstr(), m_recvTimeout(recvTimeout), m_dumpState(dumpState),
+	  m_busLocked(false), m_busPriorRetry(false)
+{
+	m_port = new Port(deviceName, noDeviceCheck);
+	m_dump = new Dump(dumpFile, dumpSize);
+}
+
+Bus::~Bus()
+{
+	if (isConnected() == true)
+		disconnect();
+
+	delete m_port;
+	delete m_dump;
+}
+
+void Bus::printBytes() const
+{
+	unsigned char byte;
+	ssize_t bytes_read;
+
+	bytes_read = m_port->recv(0);
+
+	for (int i = 0; i < bytes_read; i++) {
+		byte = m_port->byte();
+		std::cout << std::nouppercase << std::hex << std::setw(2)
+		          << std::setfill('0') << static_cast<unsigned>(byte);
+		if (byte == SYN)
+			std::cout << std::endl;
+	}
+}
+
+int Bus::proceed()
+{
+	unsigned char byte;
+	ssize_t nbytes;
+
+	// fetch new message and get bus
+	if (m_sendBuffer.size() != 0 && m_sstr.size() == 0) {
+		BusCommand* busCommand = m_sendBuffer.front();
+		return getBus(busCommand->getCommand()[0]);
+	}
+
+	// wait for new data
+	nbytes = m_port->recv(0);
+
+	if (nbytes < 0)
+		return RESULT_ERR_DEVICE;
+
+	for (int i = 0; i < nbytes; i++) {
+
+		// fetch next byte
+		byte = recvByte();
+
+		// store byte
+		return proceedCycData(byte); // TODO what if more than one byte was received?
+	}
+
+	return RESULT_SYN;
+}
+
+int Bus::proceedCycData(const unsigned char byte)
+{
+	if (byte != SYN) {
+		m_sstr.push_back(byte, true, false);
+		if (m_busLocked == true)
+			m_busLocked = false;
+
+		return RESULT_DATA;
+	}
+
+	if (byte == SYN && m_sstr.size() != 0) {
+		// lock bus after SYN-BYTE-SYN Sequence
+		if (m_sstr.size() == 1 && m_busPriorRetry == false)
+			m_busLocked = true;
+
+		m_cycBuffer.push(m_sstr);
+		m_sstr.clear();
+
+		if (m_busLocked == true)
+			return RESULT_BUS_LOCKED;
+	}
+
+	return RESULT_SYN;
+}
+
+SymbolString Bus::getCycData()
+{
+	SymbolString data;
+
+	if (m_cycBuffer.empty() == false) {
+		data = m_cycBuffer.front();
+		m_cycBuffer.pop();
+	}
+
+	return data;
+}
+
+int Bus::getBus(const unsigned char byte_sent)
+{
+	unsigned char byte_recv;
+	ssize_t bytes_sent, bytes_recv;
+
+	// send QQ
+	bytes_sent = m_port->send(&byte_sent, 1);
+	if (bytes_sent <= 0)
+		return RESULT_ERR_SEND;
+
+	// receive 1 byte - must be QQ
+	bytes_recv = m_port->recv(0, 1);
+
+	if (bytes_recv < 0)
+		return RESULT_ERR_DEVICE;
+
+	// fetch next byte
+	byte_recv = recvByte();
+
+	// compare sent and received byte
+	if (bytes_recv == 1 && byte_sent == byte_recv) {
+		m_busPriorRetry = false;
+		return RESULT_BUS_ACQUIRED;
+  	}
+
+	// store byte
+	int ret = proceedCycData(byte_recv);
+	if (ret >= 0)
+		return ret;
+// TODO this needs to be re-designed with above proceedCycData()
+	// compare prior nibble for retry
+	if (bytes_recv == 1 && (byte_sent & 0x0F) == (byte_recv & 0x0F)) {
+		m_busPriorRetry = true;
+		return RESULT_BUS_PRIOR_RETRY;
+	}
+
+	m_busLocked = true;
+	return RESULT_ERR_BUS_LOST;
+}
+
+BusCommand* Bus::sendCommand()
+{
+	unsigned char byte_recv;
+	ssize_t bytes_recv;
+	std::string result;
+	SymbolString slaveData;
+	int retval = RESULT_OK;
+
+	BusCommand* busCommand = m_sendBuffer.front();
+	m_sendBuffer.pop();
+
+	// send ZZ PB SB NN Dx CRC
+	SymbolString command = busCommand->getCommand();
+	for (size_t i = 1; i < command.size(); i++) {
+		retval = sendByte(command[i]);
+		if (retval < 0)
+			goto on_exit;
+	}
+
+	// BC -> send SYN
+	if (busCommand->getType() == broadcast) {
+		sendByte(SYN);
+		goto on_exit;
+	}
+
+	// receive ACK
+	bytes_recv = m_port->recv(m_recvTimeout);
+	if (bytes_recv > 1) {
+		retval = RESULT_ERR_EXTRA_DATA;
+		goto on_exit;
+	} else if (bytes_recv < 0) {
+		retval = RESULT_ERR_TIMEOUT;
+		goto on_exit;
+	}
+
+	byte_recv = recvByte();
+
+	// is received byte SYN?
+	if (byte_recv == SYN) {
+		retval = RESULT_ERR_SYN;
+		goto on_exit;
+	}
+
+	// is slave ACK negative?
+	if (byte_recv == NAK) {
+
+		// send QQ ZZ PB SB NN Dx CRC again
+		for (size_t i = 0; i < command.size(); i++) {
+			retval = sendByte(command[i]);
+			if (retval < 0)
+				goto on_exit;
+		}
+
+		// receive ACK
+		bytes_recv = m_port->recv(m_recvTimeout);
+		if (bytes_recv > 1) {
+			retval = RESULT_ERR_EXTRA_DATA;
+			goto on_exit;
+		} else if (bytes_recv < 0) {
+			retval = RESULT_ERR_TIMEOUT;
+			goto on_exit;
+		}
+
+		byte_recv = recvByte();
+
+		// is received byte SYN?
+		if (byte_recv == SYN) {
+			retval = RESULT_ERR_SYN;
+			goto on_exit;
+		}
+
+		// is slave ACK negative?
+		if (byte_recv == NAK) {
+			retval = sendByte(SYN);
+			if (retval == 0)
+				retval = RESULT_ERR_NAK;
+
+			goto on_exit;
+		}
+	}
+
+	// MM -> send SYN
+	if (busCommand->getType() == masterMaster) {
+		sendByte(SYN);
+		goto on_exit;
+	}
+
+	// receive NN, Dx, CRC
+	retval = recvSlaveDataAndCRC(slaveData);
+
+	// are calculated and received CRC equal?
+	if (retval == RESULT_ERR_CRC) {
+
+		// send NAK
+		retval = sendByte(NAK);
+		if (retval < 0)
+			goto on_exit;
+
+		// receive NN, Dx, CRC
+		slaveData.clear();
+		retval = recvSlaveDataAndCRC(slaveData);
+
+		// are calculated and received CRC equal?
+		if (retval == RESULT_ERR_CRC) {
+
+			// send NAK
+			retval = sendByte(NAK);
+			if (retval >= 0)
+				retval = RESULT_ERR_CRC;
+		}
+	}
+
+	if (retval < 0)
+		goto on_exit;
+
+	// send ACK
+	retval = sendByte(ACK);
+	if (retval == -1) {
+		retval = RESULT_ERR_ACK;
+		goto on_exit;
+	}
+
+	// MS -> send SYN
+	sendByte(SYN);
+
+on_exit:
+
+	// empty receive buffer
+	while (m_port->size() != 0)
+		byte_recv = recvByte();
+
+	busCommand->setResult(slaveData, retval);
+	return busCommand;
+
+}
+
+BusCommand* Bus::delCommand()
+{
+	BusCommand* busCommand = m_sendBuffer.front();
+	m_sendBuffer.pop();
+
+	busCommand->setResult(SymbolString(), RESULT_ERR_BUS_LOST);
+	return busCommand;
+}
+
+int Bus::sendByte(const unsigned char byte_sent)
+{
+	unsigned char byte_recv;
+	ssize_t bytes_sent, bytes_recv;
+
+	bytes_sent = m_port->send(&byte_sent, 1);
+
+	// receive 1 byte - must be equal
+	bytes_recv = m_port->recv(RECV_TIMEOUT);
+	if (bytes_sent != bytes_recv)
+		return RESULT_ERR_EXTRA_DATA;
+
+	byte_recv = recvByte();
+
+	if (byte_sent != byte_recv)
+		return RESULT_ERR_SEND;
+
+	return RESULT_OK;
+}
+
+unsigned char Bus::recvByte()
+{
+	unsigned char byte_recv;
+
+	// fetch byte
+	byte_recv = m_port->byte();
+
+	if (m_dumpState == true)
+		m_dump->write((const char*) &byte_recv);
+
+	return byte_recv;
+}
+
+int Bus::recvSlaveDataAndCRC(SymbolString& result)
+{
+	unsigned char byte_recv, crc_calc = 0;
+	ssize_t bytes_recv;
+	size_t NN = 0;
+	bool updateCrc = true;
+	int retval = 0;
+
+	for (size_t i = 0, needed = 1; i < needed; i++) {
+		bytes_recv = m_port->recv(RECV_TIMEOUT, 1);
+		if (bytes_recv < 0)
+			return RESULT_ERR_TIMEOUT;
+
+		byte_recv = recvByte();
+		retval = result.push_back(byte_recv, true, updateCrc);
+		if (retval < 0)
+			return retval;
+
+		if (retval == RESULT_IN_ESC)
+			needed++;
+		else if (result.size() == 1) { // NN received
+			NN = result[0];
+			needed += NN;
+		}
+		else if (NN > 0 && result.size() == 1+NN) {// all data received
+			updateCrc = false;
+			crc_calc = result.getCRC();
+			needed++;
+		}
+	}
+
+	if (retval == RESULT_IN_ESC)
+		return RESULT_ERR_ESC;
+
+	if (updateCrc || crc_calc != result[result.size()-1])
+		return RESULT_ERR_CRC;
+
+	return RESULT_OK;
+}
+
+
+} //namespace
+

src/lib/ebus/bus.h

@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_BUS_H_
+#define LIBEBUS_BUS_H_
+
+#include "symbol.h"
+#include "result.h"
+#include "port.h"
+#include "dump.h"
+#include "buscommand.h"
+#include <cstring>
+#include <cstdlib>
+#include <sstream>
+#include <queue>
+
+namespace libebus
+{
+
+
+// the maximum time allowed for retrieving a byte from an addressed slave
+#define RECV_TIMEOUT 10000
+
+class Bus
+{
+
+public:
+	Bus(const std::string deviceName, const bool noDeviceCheck, const long recvTimeout,
+		const std::string dumpFile, const long dumpSize, const bool dumpState);
+	~Bus();
+
+	void connect() { m_port->open(); }
+	void disconnect() { if (m_port->isOpen() == true) m_port->close(); }
+	bool isConnected() { return m_port->isOpen(); }
+
+	void printBytes() const;
+
+	int proceed();
+	SymbolString getCycData();
+
+	void addCommand(BusCommand* busCommand) { m_sendBuffer.push(busCommand); }
+
+	int getBus(const unsigned char byte);
+	BusCommand* sendCommand();
+	BusCommand* delCommand();
+
+	void setDumpState(const bool dumpState) { m_dumpState = dumpState; }
+
+private:
+	Port* m_port;
+	SymbolString m_sstr;
+	std::queue<SymbolString> m_cycBuffer;
+	std::queue<BusCommand*> m_sendBuffer;
+
+	const long m_recvTimeout;
+
+	Dump* m_dump;
+	bool m_dumpState;
+
+	bool m_busLocked;
+	bool m_busPriorRetry;
+
+	int proceedCycData(const unsigned char byte);
+	int sendByte(const unsigned char byte_sent);
+	unsigned char recvByte();
+	int recvSlaveDataAndCRC(SymbolString& result);
+
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_BUS_H_

src/lib/ebus/buscommand.cpp

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "buscommand.h"
+
+namespace libebus
+{
+
+BusCommand::BusCommand(const std::string commandStr, const bool isPoll)
+	: m_isPoll(isPoll), m_command(commandStr), m_result(), m_resultCode(RESULT_OK)
+{
+	unsigned char dstAddress = m_command[1];
+
+	if (dstAddress == BROADCAST)
+		m_type = broadcast;
+	else if (isMaster(dstAddress) == true)
+		m_type = masterMaster;
+	else
+		m_type = masterSlave;
+
+	pthread_mutex_init(&m_mutex, NULL);
+	pthread_cond_init(&m_cond, NULL);
+}
+
+BusCommand::~BusCommand()
+{
+	pthread_mutex_destroy(&m_mutex);
+	pthread_cond_destroy(&m_cond);
+}
+
+const std::string BusCommand::getMessageStr()
+{
+	std::string result;
+
+	if (m_resultCode >= 0) {
+		if (m_type == masterSlave) {
+			result = m_command.getDataStr();
+			result += "00";
+			result += m_result.getDataStr();
+			result += "00";
+		} else {
+			result = "success";
+		}
+	}
+	else
+		result = "error: "+std::string(getResultCodeCStr());
+
+	return result;
+}
+
+
+} //namespace
+

src/lib/ebus/buscommand.h

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_BUSCOMMAND_H_
+#define LIBEBUS_BUSCOMMAND_H_
+
+#include "symbol.h"
+#include "result.h"
+
+
+namespace libebus
+{
+
+
+enum CommandType { invalid, broadcast, masterMaster, masterSlave };
+
+class BusCommand
+{
+
+public:
+	BusCommand(const std::string command, const bool isPoll);
+	~BusCommand();
+
+	CommandType getType() const { return m_type; }
+	bool isPoll() const { return m_isPoll; }
+
+	SymbolString getCommand() const { return m_command; }
+	SymbolString getResult() const { return m_result; }
+
+	bool isErrorResult() const { return m_resultCode < 0; }
+	const char* getResultCodeCStr() const { return libebus::getResultCodeCStr(m_resultCode); }
+	void setResult(const SymbolString result, const int resultCode)
+		{ m_result = result; m_resultCode = resultCode; }
+
+	const std::string getMessageStr();
+
+	void waitSignal() { pthread_cond_wait(&m_cond, &m_mutex); } // TODO timeout
+	void sendSignal() { pthread_cond_signal(&m_cond); }
+
+private:
+	CommandType m_type;
+	bool m_isPoll;
+	SymbolString m_command;
+	SymbolString m_result;
+	int m_resultCode;
+
+	pthread_mutex_t m_mutex;
+	pthread_cond_t m_cond;
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_BUSCOMMAND_H_

src/lib/ebus/command.cpp

@@ -0,0 +1,345 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "command.h"
+#include "decode.h"
+#include "encode.h"
+#include <iostream>
+#include <algorithm>
+#include <sstream>
+#include <iomanip>
+#include <vector>
+#include <cstring>
+
+namespace libebus
+{
+
+
+std::string Command::calcData()
+{
+	// encode - only first entry will be encoded
+	// ToDo: if more parts are needed, they will be implemented
+	encode(m_data, m_command[13], m_command[14]);
+
+	if (m_error.length() > 0)
+		m_result = m_error;
+
+	return m_result;
+}
+
+std::string Command::calcResult(const cmd_t& cmd)
+{
+	int elements = strtol(m_command[9].c_str(), NULL, 10);
+
+	if (cmd.size() > 3) {
+		bool found = false;
+
+		for (size_t i = 3; i < cmd.size(); i++) {
+			int j;
+
+			for (j = 0; j < elements; j++) {
+				if (m_command[10 + j*8] == cmd[i]) {
+					found = true;
+					break;
+				}
+			}
+
+			if (found == true) {
+				found = false;
+
+				// decode
+				calcSub(m_command[11 + j*8], m_command[12 + j*8],
+					m_command[13 + j*8], m_command[14 + j*8]);
+			}
+
+		}
+
+	} else {
+		for (int j = 0; j < elements; j++) {
+
+			// decode
+			calcSub(m_command[11 + j*8], m_command[12 + j*8],
+				m_command[13 + j*8], m_command[14 + j*8]);
+		}
+	}
+
+	if (m_error.length() > 0)
+		m_result = m_error;
+
+	return m_result;
+}
+
+void Command::calcSub(const std::string& part, const std::string& position,
+		      const std::string& type, const std::string& factor)
+{
+	std::string data;
+
+	// Master Data
+	if (strcasecmp(part.c_str(), "MD") == 0) {
+		// QQ ZZ PB SB NN
+		int md_pos = 10;
+		int md_len = strtol(m_command[7].c_str(), NULL, 10)*2;
+		data = m_data.substr(md_pos, md_len);
+	}
+
+	// Slave Acknowledge
+	else if (strcasecmp(part.c_str(), "SA") == 0) {
+		// QQ ZZ PB SB NN + Dx + CRC
+		int sa_pos = 10 + (strtol(m_command[7].c_str(), NULL, 10)*2) + 2;
+		int sa_len = 2;
+		data = m_data.substr(sa_pos, sa_len);
+	}
+
+	// Slave Data
+	else if (strcasecmp(part.c_str(), "SD") == 0) {
+		// QQ ZZ PB SB NN + Dx + CRC ACK NN
+		int sd_pos = 10 + (strtol(m_command[7].c_str(), NULL, 10)*2) + 6;
+		int sd_len = m_data.length() - (10 + (strtol(m_command[7].c_str(), NULL, 10)*2) + 6) - 4;
+		data = m_data.substr(sd_pos, sd_len);
+	}
+
+	// Master Acknowledge
+	else if (strcasecmp(part.c_str(), "MA") == 0) {
+		// QQ ZZ PB SB NN + Dx + CRC ACK NN + Dx
+		int ma_pos = m_data.length() - 2;
+		int ma_len = 2;
+		data = m_data.substr(ma_pos, ma_len);
+	}
+
+	decode(data, position, type, factor);
+}
+
+void Command::decode(const std::string& data, const std::string& position,
+		     const std::string& type, const std::string& factor)
+{
+	std::ostringstream result, value;
+	Decode* help = NULL;
+
+	// prepare position
+	std::string token;
+	std::istringstream stream(position);
+	std::vector<int> pos;
+
+	while (std::getline(stream, token, ',') != 0)
+		pos.push_back(strtol(token.c_str(), NULL, 10));
+
+	if (strcasecmp(type.c_str(), "HEX") == 0) {
+		if (pos.size() <= 1 || pos[1] < pos[0])
+			pos[1] = pos[0];
+
+		value << data.substr((pos[0]-1)*2, (pos[1]-pos[0]+1)*2);
+		help = new DecodeHEX(value.str());
+	}
+	else if (strcasecmp(type.c_str(), "UCH") == 0) {
+		value << data.substr((pos[0]-1)*2, 2);
+		help = new DecodeUCH(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "SCH") == 0) {
+		value << data.substr((pos[0]-1)*2, 2);
+		help = new DecodeSCH(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "UIN") == 0) {
+		value << data.substr((pos[0]-1)*2, 2) << data.substr((pos[1]-1)*2, 2);
+		help = new DecodeUIN(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "SIN") == 0) {
+		value << data.substr((pos[0]-1)*2, 2) << data.substr((pos[1]-1)*2, 2);
+		help = new DecodeSIN(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "ULG") == 0) {
+		value << data.substr((pos[0]-1)*2, 2) << data.substr((pos[1]-1)*2, 2)
+		      << data.substr((pos[2]-1)*2, 2) << data.substr((pos[3]-1)*2, 2);
+		help = new DecodeULG(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "SLG") == 0) {
+		value << data.substr((pos[0]-1)*2, 2) << data.substr((pos[1]-1)*2, 2)
+		      << data.substr((pos[2]-1)*2, 2) << data.substr((pos[3]-1)*2, 2);
+		help = new DecodeSLG(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "FLT") == 0) {
+		value << data.substr((pos[0]-1)*2, 2) << data.substr((pos[1]-1)*2, 2);
+		help = new DecodeFLT(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "STR") == 0) {
+		if (pos.size() <= 1 || pos[1] < pos[0])
+			pos[1] = pos[0];
+
+		value << data.substr((pos[0]-1)*2, (pos[1]-pos[0]+1)*2);
+		help = new DecodeSTR(value.str());
+	}
+	else if (strcasecmp(type.c_str(), "BCD") == 0) {
+		value << data.substr((pos[0]-1)*2, 2);
+		help = new DecodeBCD(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "D1B") == 0) {
+		value << data.substr((pos[0]-1)*2, 2);
+		help = new DecodeD1B(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "D1C") == 0) {
+		value << data.substr((pos[0]-1)*2, 2);
+		help = new DecodeD1C(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "D2B") == 0) {
+		value << data.substr((pos[0]-1)*2, 2) << data.substr((pos[1]-1)*2, 2);
+		help = new DecodeD2B(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "D2C") == 0) {
+		value << data.substr((pos[0]-1)*2, 2) << data.substr((pos[1]-1)*2, 2);
+		help = new DecodeD2C(value.str(), factor);
+	}
+	else if (strcasecmp(type.c_str(), "BDA") == 0) {
+		value << data.substr((pos[0]-1)*2, 2)
+		      << data.substr((pos[1]-1)*2, 2)
+		      << data.substr((pos[2]-1)*2, 2);
+		help = new DecodeBDA(value.str());
+	}
+	else if (strcasecmp(type.c_str(), "HDA") == 0) {
+		value << data.substr((pos[0]-1)*2, 2)
+		      << data.substr((pos[1]-1)*2, 2)
+		      << data.substr((pos[2]-1)*2, 2);
+		help = new DecodeHDA(value.str());
+	}
+	else if (strcasecmp(type.c_str(), "BTI") == 0) {
+		value << data.substr((pos[0]-1)*2, 2)
+		      << data.substr((pos[1]-1)*2, 2)
+		      << data.substr((pos[2]-1)*2, 2);
+		help = new DecodeBTI(value.str());
+	}
+	else if (strcasecmp(type.c_str(), "HTI") == 0) {
+		value << data.substr((pos[0]-1)*2, 2)
+		      << data.substr((pos[1]-1)*2, 2)
+		      << data.substr((pos[2]-1)*2, 2);
+		help = new DecodeHTI(value.str());
+	}
+	else if (strcasecmp(type.c_str(), "BDY") == 0) {
+		value << data.substr((pos[0]-1)*2, 2);
+		help = new DecodeBDY(value.str());
+	}
+	else if (strcasecmp(type.c_str(), "HDY") == 0) {
+		value << data.substr((pos[0]-1)*2, 2);
+		help = new DecodeHDY(value.str());
+	}
+	else if (strcasecmp(type.c_str(), "TTM") == 0) {
+		value << data.substr((pos[0]-1)*2, 2);
+		help = new DecodeTTM(value.str());
+	}
+
+	if (help == NULL) {
+		result << "type '" << type.c_str() << "' not implemented!";
+		m_error = result.str();
+	} else {
+		result << help->decode();
+
+		if (m_result.length() > 0)
+			m_result += " ";
+
+		m_result += result.str();
+	}
+
+	delete help;
+}
+
+void Command::encode(const std::string& data, const std::string& type,
+		     const std::string& factor)
+{
+	std::ostringstream result;
+	Encode* help = NULL;
+
+	if (strcasecmp(type.c_str(), "HEX") == 0) {
+		help = new EncodeHEX(data);
+	}
+	else if (strcasecmp(type.c_str(), "UCH") == 0) {
+		help = new EncodeUCH(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "SCH") == 0) {
+		help = new EncodeSCH(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "UIN") == 0) {
+		help = new EncodeUIN(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "SIN") == 0) {
+		help = new EncodeSIN(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "ULG") == 0) {
+		help = new EncodeULG(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "SLG") == 0) {
+		help = new EncodeSLG(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "FLT") == 0) {
+		help = new EncodeSLG(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "STR") == 0) {
+		help = new EncodeSTR(data);
+	}
+	else if (strcasecmp(type.c_str(), "BCD") == 0) {
+		help = new EncodeBCD(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "D1B") == 0) {
+		help = new EncodeD1B(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "D1C") == 0) {
+		help = new EncodeD1C(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "D2B") == 0) {
+		help = new EncodeD2B(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "D2C") == 0) {
+		help = new EncodeD2C(data, factor);
+	}
+	else if (strcasecmp(type.c_str(), "BDA") == 0) {
+		help = new EncodeBDA(data);
+	}
+	else if (strcasecmp(type.c_str(), "HDA") == 0) {
+		help = new EncodeHDA(data);
+	}
+	else if (strcasecmp(type.c_str(), "BTI") == 0) {
+		help = new EncodeBTI(data);
+	}
+	else if (strcasecmp(type.c_str(), "HTI") == 0) {
+		help = new EncodeHTI(data);
+	}
+	else if (strcasecmp(type.c_str(), "BDY") == 0) {
+		help = new EncodeBDY(data);
+	}
+	else if (strcasecmp(type.c_str(), "HDY") == 0) {
+		help = new EncodeHDY(data);
+	}
+	else if (strcasecmp(type.c_str(), "TTM") == 0) {
+		help = new EncodeTTM(data);
+	}
+
+	if (help == NULL) {
+		result << "type '" << type.c_str() << "' not implemented!";
+		m_error = result.str();
+	} else {
+		result << help->encode();
+
+		if (m_result.length() > 0)
+			m_result += " ";
+
+		m_result += result.str();
+	}
+
+	delete help;
+}
+
+
+} //namespace
+

src/lib/ebus/command.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_COMMAND_H_
+#define LIBEBUS_COMMAND_H_
+
+#include <string>
+#include <vector>
+
+namespace libebus
+{
+
+
+typedef std::vector<std::string> cmd_t;
+typedef cmd_t::const_iterator cmdCI_t;
+
+class Command
+{
+
+public:
+	Command(int index, cmd_t command) : m_index(index), m_command(command) {}
+	Command(int index, cmd_t command, std::string data)
+		: m_index(index), m_command(command), m_data(data) {}
+
+	cmd_t getCommand() const { return m_command; }
+	void setData(const std::string& data) { m_data = data; }
+	std::string getData() const { return m_data; }
+	std::string calcData();
+
+	std::string calcResult(const cmd_t& cmd);
+
+private:
+	int m_index;
+	cmd_t m_command;
+	std::string m_data;
+	std::string m_result;
+	std::string m_error;
+
+	void calcSub(const std::string& part, const std::string& position,
+		     const std::string& type, const std::string& factor);
+
+	void decode(const std::string& data, const std::string& position,
+		    const std::string& type, const std::string& factor);
+
+	void encode(const std::string& data, const std::string& type,
+		    const std::string& factor);
+
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_COMMAND_H_

src/lib/ebus/commands.cpp

@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "commands.h"
+#include <iostream>
+#include <algorithm>
+#include <sstream>
+#include <iomanip>
+#include <vector>
+#include <cstring>
+
+namespace libebus
+{
+
+
+Commands::~Commands()
+{
+	for (mapCI_t iter = m_polDB.begin(); iter != m_polDB.end(); ++iter)
+		delete iter->second;
+
+	m_polDB.clear();
+
+	for (mapCI_t iter = m_cycDB.begin(); iter != m_cycDB.end(); ++iter)
+		delete iter->second;
+
+	m_cycDB.clear();
+
+	m_cmdDB.clear();
+}
+
+void Commands::addCommand(const cmd_t& command)
+{
+	m_cmdDB.push_back(command);
+
+	if (strcasecmp(command[0].c_str(),"C") == 0) {
+		Command* cmd = new Command(m_cmdDB.size()-1, command);
+		m_cycDB.insert(pair_t(m_cmdDB.size()-1, cmd));
+	}
+
+	if (strcasecmp(command[0].c_str(),"P") == 0) {
+		Command* cmd = new Command(m_cmdDB.size()-1, command);
+		m_polDB.insert(pair_t(m_cmdDB.size()-1, cmd));
+	}
+}
+
+void Commands::printCommands() const
+{
+	if (m_cmdDB.size() == 0)
+		return;
+
+	for (cmdDBCI_t i = m_cmdDB.begin(); i != m_cmdDB.end(); i++) {
+		printCommand(*i);
+		std::cout << std::endl;
+	}
+}
+
+int Commands::findCommand(const std::string& data) const
+{
+	// no commands definend
+	if (m_cmdDB.size() == 0)
+		return -2;
+
+	// preapre string for searching command
+	std::string token;
+	std::istringstream isstr(data);
+	std::vector<std::string> cmd;
+
+	// split stream
+	while (std::getline(isstr, token, ' ') != 0)
+		cmd.push_back(token);
+
+	std::size_t index;
+	cmdDBCI_t i = m_cmdDB.begin();
+
+	// walk through commands - GET
+	if (strcasecmp(cmd[0].c_str(), "GET") == 0) {
+		for (index = 0; i != m_cmdDB.end(); i++, index++) {
+
+			// empty line
+			if ((*i).size() == 0)
+				continue;
+
+			if (((strcasecmp((*i)[0].c_str(), "R") == 0)
+			||   (strcasecmp((*i)[0].c_str(), "P") == 0))
+			&&   (strcasecmp((*i)[1].c_str(), cmd[1].c_str()) == 0)
+			&&   (strcasecmp((*i)[2].c_str(), cmd[2].c_str()) == 0))
+				return index;
+		}
+	// walk through commands - SET, CYC
+	} else {
+		// correct type
+		if (strcasecmp(cmd[0].c_str(), "SET") == 0)
+			cmd[0] = "W";
+		else if (strcasecmp(cmd[0].c_str(), "CYC") == 0)
+			cmd[0] = "C";
+
+		for (index = 0; i != m_cmdDB.end(); i++, index++) {
+
+			// empty line
+			if ((*i).size() == 0)
+				continue;
+
+			if (strcasecmp((*i)[0].c_str(), cmd[0].c_str()) == 0 &&
+			    strcasecmp((*i)[1].c_str(), cmd[1].c_str()) == 0 &&
+			    strcasecmp((*i)[2].c_str(), cmd[2].c_str()) == 0)
+				return index;
+		}
+	}
+
+	// command not found
+	return -1;
+}
+
+std::string Commands::getEbusCommand(const int index) const
+{
+	cmd_t command = m_cmdDB.at(index);
+	std::string cmd(command[5]);
+	cmd += command[6];
+	std::stringstream sstr;
+	sstr << std::setw(2) << std::hex << std::setfill('0') << command[7];
+	cmd += sstr.str();
+	cmd += command[8];
+
+	return cmd;
+}
+
+int Commands::storeCycData(const std::string& data) const
+{
+	// no commands defined
+	if (m_cycDB.size() == 0)
+		return -2;
+
+	// search skipped - string too short
+	if (data.length() < 10)
+		return -3;
+
+	// prepare string for searching command
+	std::string search(data.substr(2, 8 + strtol(data.substr(8,2).c_str(), NULL, 16) * 2));
+
+	mapCI_t iter = m_cycDB.begin();
+
+	// walk through commands
+	for (; iter != m_cycDB.end(); iter++) {
+
+		std::string command = getEbusCommand(iter->first);
+
+		// skip wrong search string length
+		if (command.length() > search.length())
+			continue;
+
+		if (strcasecmp(command.c_str(), search.substr(0,command.length()).c_str()) == 0) {
+			iter->second->setData(data);
+			return iter->first;
+		}
+	}
+
+	// command not found
+	return -1;
+}
+
+std::string Commands::getCycData(int index) const
+{
+	mapCI_t iter = m_cycDB.find(index);
+	if (iter != m_cycDB.end())
+		return iter->second->getData();
+	else
+		return "";
+}
+
+int Commands::nextPolCommand()
+{
+	size_t index = 0;
+
+	m_polIndex++;
+
+	if (m_polIndex == m_polDB.size())
+		m_polIndex = 0;
+
+	mapCI_t iter = m_polDB.begin();
+
+	for (; iter != m_polDB.end(); iter++, index++)
+		if (index == m_polIndex)
+			return iter->first;
+
+	return -1;
+}
+
+void Commands::storePolData(const std::string& data) const
+{
+	// prepare string for searching command
+	std::string search(data.substr(2, 8 + strtol(data.substr(8,2).c_str(), NULL, 16) * 2));
+
+	mapCI_t iter = m_polDB.begin();
+
+	// walk through commands
+	for (; iter != m_polDB.end(); iter++) {
+
+		std::string command = getEbusCommand(iter->first);
+
+		// skip wrong search string length
+		if (command.length() > search.length())
+			continue;
+
+		if (strcasecmp(command.c_str(), search.substr(0,command.length()).c_str()) == 0)
+			iter->second->setData(data);
+
+	}
+}
+
+std::string Commands::getPolData(int index) const
+{
+	mapCI_t iter = m_polDB.find(index);
+	if (iter != m_polDB.end())
+		return iter->second->getData();
+	else
+		return "";
+}
+
+void Commands::printCommand(const cmd_t& command) const
+{
+	if (command.size() == 0)
+		return;
+
+	for (cmdCI_t i = command.begin(); i != command.end(); i++)
+		std::cout << *i << ';';
+}
+
+
+} //namespace
+

src/lib/ebus/commands.h

@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_COMMANDS_H_
+#define LIBEBUS_COMMANDS_H_
+
+#include "command.h"
+#include <string>
+#include <vector>
+#include <map>
+
+namespace libebus
+{
+
+
+typedef std::vector<cmd_t> cmdDB_t;
+typedef cmdDB_t::const_iterator cmdDBCI_t;
+
+typedef std::map<int, Command*> map_t;
+typedef map_t::const_iterator mapCI_t;
+typedef std::pair<int, Command*> pair_t;
+
+class Commands
+{
+
+public:
+	Commands() : m_polIndex(-1) {}
+	~Commands();
+
+	void addCommand(const cmd_t& command);
+	void printCommands() const;
+
+	std::size_t sizeCmdDB() const { return m_cmdDB.size(); }
+	std::size_t sizeCycDB() const { return m_cycDB.size(); }
+	std::size_t sizePolDB() const { return m_polDB.size(); }
+
+	cmd_t const& operator[](const std::size_t& index) const { return m_cmdDB[index]; }
+
+	int findCommand(const std::string& data) const;
+
+	std::string getCmdType(const int index) const { return std::string(m_cmdDB.at(index)[0]); }
+	std::string getEbusType(const int index) const { return std::string(m_cmdDB.at(index)[4]); }
+	std::string getEbusCommand(const int index) const;
+
+	int storeCycData(const std::string& data) const;
+	std::string getCycData(int index) const;
+
+	int nextPolCommand();
+	void storePolData(const std::string& data) const;
+	std::string getPolData(int index) const;
+
+private:
+	cmdDB_t m_cmdDB;
+	map_t m_cycDB;
+	map_t m_polDB;
+	size_t m_polIndex;
+
+	void printCommand(const cmd_t& command) const;
+
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_COMMANDS_H_

src/lib/ebus/configfile.cpp

@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "configfile.h"
+#include <sstream>
+#include <fstream>
+#include <dirent.h>
+
+namespace libebus
+{
+
+
+void ConfigFileCSV::parse(std::istream& is, Commands& commands)
+{
+	std::string line;
+
+	// read lines
+	while (std::getline(is, line) != 0) {
+		cmd_t row;
+		std::string column;
+
+		std::istringstream isstr(line);
+
+		// walk through columns
+		while (std::getline(isstr, column, ';') != 0)
+			row.push_back(column);
+
+		// skip empty and commented rows
+		if (row.empty() == true || row[0][0] == '#')
+			continue;
+
+		commands.addCommand(row);
+	}
+};
+
+
+void ConfigFileXML::parse(std::istream& is, Commands& commands)
+{
+	;	// ToDo: Implementation for xml files
+}
+
+
+
+ConfigCommands::ConfigCommands(const std::string path, const FileType type)
+{
+	m_path = path;
+	m_configfile = NULL;
+	setType(type);
+	addFiles(m_path, m_extension);
+}
+
+void ConfigCommands::setType(const FileType type)
+{
+	if (m_configfile != NULL)
+		delete m_configfile;
+
+	switch (type) {
+	case CSV:
+		m_configfile = new ConfigFileCSV();
+		m_extension = "csv";
+		break;
+	case XML:
+		m_configfile = new ConfigFileXML();
+		m_extension = "xml";
+		break;
+	};
+};
+
+Commands* ConfigCommands::getCommands()
+{
+	Commands* commands = new Commands();
+	std::vector<std::string>::const_iterator i = m_files.begin();
+
+	for(; i != m_files.end(); i++) {
+		std::fstream file((*i).c_str(), std::ios::in);
+
+		if(file.is_open() == true) {
+			m_configfile->parse(file, *commands);
+			file.close();
+		}
+	}
+	return commands;
+};
+
+void ConfigCommands::addFiles(const std::string path, const std::string extension)
+{
+        DIR* dir = opendir(path.c_str());
+
+	if (dir == NULL)
+		return;
+
+        dirent* d = readdir(dir);
+
+        while (d != NULL) {
+
+                if (d->d_type == DT_DIR) {
+                        std::string fn = d->d_name;
+
+                        if (fn != "." && fn != "..") {
+				const std::string p = path + "/" + d->d_name;
+                                addFiles(p, extension);
+			}
+
+                } else if (d->d_type == DT_REG) {
+                        std::string fn = d->d_name;
+
+                        if (fn.find(extension, (fn.length() - extension.length())) != std::string::npos) {
+				const std::string p = path + "/" + d->d_name;
+                                m_files.push_back(p);
+			}
+                }
+
+                d = readdir(dir);
+        }
+
+        closedir(dir);
+};
+
+
+} //namespace
+

src/lib/ebus/configfile.h

@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_CONFIGFILE_H_
+#define LIBEBUS_CONFIGFILE_H_
+
+#include "commands.h"
+#include <string>
+#include <vector>
+
+namespace libebus
+{
+
+/** available file endings / types. */
+enum FileType { CSV, XML };
+
+/**
+ * @brief Base class for config files.
+ */
+class ConfigFile
+{
+
+public:
+	/**
+	 * @brief Destructor.
+	 */
+	virtual ~ConfigFile() {}
+
+	/**
+	 * @brief read input stream and stored data into commands
+	 * @param is open input stream for reading.
+	 * @param commands object as datastore.
+	 */
+	virtual void parse(std::istream& is, Commands& commands) = 0;
+
+};
+
+/**
+ * @brief Class for CSV config files.
+ */
+class ConfigFileCSV : public ConfigFile
+{
+
+public:
+	/**
+	 * @brief Destructor.
+	 */
+	~ConfigFileCSV() {}
+
+	/**
+	 * @brief read input stream and stored data into commands
+	 * @param is open input stream for reading.
+	 * @param commands object as datastore.
+	 */
+	void parse(std::istream& is, Commands& commands);
+
+};
+
+/**
+ * @brief Class for XML config files.
+ */
+class ConfigFileXML : public ConfigFile
+{
+
+public:
+	/**
+	 * @brief Destructor.
+	 */
+	~ConfigFileXML() {}
+
+	/**
+	 * @brief read input stream and stored data into commands
+	 * @param is open input stream for reading.
+	 * @param commands object as datastore.
+	 */
+	void parse(std::istream& is, Commands& commands);
+
+};
+
+
+/**
+ * @brief Class for class Device.
+ */
+class ConfigCommands
+{
+
+public:
+	/**
+	 * @brief Set file type and add recursive files from given path.
+	 * @param path to configuration files.
+	 * @param Filetype to parse.
+	 */
+	ConfigCommands(const std::string path, const FileType type);
+
+	/**
+	 * @brief Destructor.
+	 */
+	~ConfigCommands() { delete m_configfile; }
+
+	/**
+	 * @brief setter for file type.
+	 * @param FileType of files.
+	 */
+	void setType(const FileType type);
+
+	/**
+	 * @brief Parse files for commands and store them into commands instance.
+	 * @return a commands instance
+	 */
+	Commands* getCommands();
+
+private:
+	/** the configfile instance */
+	ConfigFile* m_configfile;
+	/** main path for configuration files */
+	std::string m_path;
+	/** valid file extension */
+	std::string m_extension;
+	/** vector of configuration files */
+	std::vector<std::string> m_files;
+
+	/**
+	 * @brief parse path for given file extension.
+	 * @param path to configuration files.
+	 * @param extension with file type.
+	 */
+	void addFiles(const std::string path, const std::string extension);
+
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_CONFIGFILE_H_

src/lib/ebus/data.cpp

@@ -0,0 +1,599 @@
+/*
+ * Copyright (C) John Baier 2014 <ebusd@johnm.de>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "data.h"
+#include "decode.h"
+#include "encode.h"
+#include <iostream>
+#include <algorithm>
+#include <sstream>
+#include <iomanip>
+#include <vector>
+#include <cstring>
+
+namespace libebus
+{
+
+/** the known data field types. */
+static const dataType_t dataTypes[] = {
+	{"STR",16, bt_str,   ADJ,' ',           1,         16,     0}, // >= 1 byte character string filled up with space
+	{"HEX",16, bt_hexstr,ADJ,  0,           2,         47,     0}, // >= 1 byte hex digit string, usually separated by space, e.g. 0a 1b 2c 3d
+	{"BDA", 4, bt_date,  BCD,  0,          10,         10,     0}, // date in BCD, 01.01.2000 - 31.12.2099 (0x01,0x01,WW,0x00 - 0x31,0x12,WW,0x99, WW is ignored weekday)
+	{"BDA", 3, bt_date,  BCD,  0,          10,         10,     0}, // date in BCD, 01.01.2000 - 31.12.2099 (0x01,0x01,0x00 - 0x31,0x12,0x99)
+	{"HDA", 4, bt_date,    0,  0,          10,         10,     0}, // date, 01.01.2000 - 31.12.2099 (0x01,0x01,WW,0x00 - 0x31,0x12,WW,0x99, WW is ignored weekday) // TODO remove duplicate of BDA
+	{"HDA", 3, bt_date,    0,  0,          10,         10,     0}, // date, 01.01.2000 - 31.12.2099 (0x01,0x01,0x00 - 0x31,0x12,0x99) // TODO remove duplicate of BDA
+	{"BTI", 3, bt_time,BCD|REV,0,           8,          8,     0}, // time in BCD, 00:00:00 - 23:59:59 (0x00,0x00,0x00 - 0x59,0x59,0x23)
+	{"TTM", 1, bt_time,    0,  0,           5,          5,     0}, // truncated time (only multiple of 10 minutes), 00:00 - 24:00 (minutes div 10 + hour * 6 as integer)
+	{"BDY", 1, bt_list,BCD|DAY,0,           0,          6,     0}, // weekday, "Mon" - "Sun"
+	{"HDY", 1, bt_list,BCD|DAY,0,           1,          7,     0}, // weekday, "Mon" - "Sun"
+	{"BCD", 1, bt_number,BCD|LST,0xff,      0,       0x99,     1}, // unsigned decimal in BCD, 0 - 99
+	{"UCH", 1, bt_number, LST, 0xff,        0,       0xff,     1}, // unsigned integer, 0 - 255
+	{"SCH", 1, bt_number, SIG, 0x80,     0x80,       0x7f,     1}, // signed integer, -128 - +127
+	{"D1B", 1, bt_number, SIG, 0x80,     0x81,       0x7f,     1}, // signed integer, -127 - +127
+	{"D1C", 1, bt_number,   0, 0xff,     0x00,       0xc8,     2}, // unsigned number (fraction 1/2), 0 - 100 (0x00 - 0xc8, replacement 0xff)
+	{"UIN", 2, bt_number, LST, 0xffff,      0,     0xffff,     1}, // unsigned integer, 0 - 65535
+	{"SIN", 2, bt_number, SIG, 0x8000, 0x8000,     0x7fff,     1}, // signed integer, -32768 - +32767
+	{"FLT", 2, bt_number, SIG, 0x8000, 0x8000,     0x7fff,  1000}, // signed number (fraction 1/1000), -32.768 - +32.767
+	{"D2B", 2, bt_number, SIG, 0x8000, 0x8001,     0x7fff,   256}, // signed number (fraction 1/256), -127.99 - +127.99
+	{"D2C", 2, bt_number, SIG, 0x8000, 0x8001,     0x7fff,    16}, // signed number (fraction 1/16), -2047.9 - +2047.9
+	{"ULG", 4, bt_number, LST, 0xffffffff,          0, 0xffffffff, 1}, // unsigned integer, 0 - 4294967295
+	{"SLG", 4, bt_number, SIG, 0x80000000, 0x80000000, 0xffffffff, 1}, // signed integer, -2147483648 - +2147483647
+}; // TODO check value range for numberdf
+
+/** the week day names. */
+static const char* dayNames[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
+
+
+DataField* DataField::create(const unsigned char dstAddress, const bool isSetMessage,
+		std::vector<std::string>::iterator& it, const std::vector<std::string>::iterator end) {
+	std::string name, unit, comment;
+	PartType partType;
+	float factor;
+	size_t baseOffset = 0, offset = 0, length = 0, maxPos = 16, offsetCnt = 0;
+
+	if (it == end)
+		return NULL;
+	name = *it++;
+	if (it == end || name.size() == 0)
+		return NULL;
+	const char* posStr = (*it++).c_str();
+	if (it == end)
+		return NULL;
+	if (dstAddress == BROADCAST
+	|| isMaster(dstAddress)
+	|| (isSetMessage == true && posStr[0] <= '9')
+	|| posStr[0] == 'm') { // master data
+		partType = pt_masterData;
+		baseOffset = 5; // skip QQ ZZ PB SB NN
+		//len = command.getMasterDataLength();
+		if (posStr[0] == 'm')
+			posStr++;
+	} else if ((isSetMessage == false && posStr[0] <= '9')
+	|| posStr[0] == 's') { // slave data
+		baseOffset = 1;
+		//offset = 5+command.getMasterDataLength()+3; // skip QQ ZZ PB SB NN Dx CRC ACK NN
+		//len = command.getSlaveDataLength();
+		if (posStr[0] == 's')
+			posStr++;
+	} else {
+		return NULL; // TODO error code: invalid pos definition
+	}
+	std::string token;
+	std::istringstream stream(posStr);
+	while (std::getline(stream, token, '-') != 0) {
+		if (++offsetCnt > 2)
+			return NULL; // TODO error code: invalid pos definition
+		const char* start = token.c_str();
+		char* end = NULL;
+		unsigned int pos = strtoul(start, &end, 10)-1; // 1-based
+		if (end != start+strlen(start))
+			return NULL; // TODO error code: invalid pos definition
+		if (baseOffset+pos > maxPos)
+			return NULL; // TODO error code: invalid pos definition
+		else if (offsetCnt==1)
+			offset = baseOffset+pos;
+		else if (baseOffset+pos >= offset)
+			length = baseOffset+pos+1-offset;
+		else { // wrong order e.g. 4-3
+			length = offset-(baseOffset+pos+1);
+			offset = baseOffset+pos;
+		}
+	}
+
+	const char* typeStr = (*it++).c_str();
+
+	std::map<unsigned int, std::string> values;
+	if (it == end)
+		factor = 1.0;
+	else {
+		std::string factorStr = *it++;
+		if (factorStr.empty())
+			factor = 1.0;
+		else if (factorStr.find_first_not_of("0123456789.") == std::string::npos)
+			factor = static_cast<float>(strtod(factorStr.c_str(), NULL));
+		else {
+			factor = 1.0;
+			std::istringstream stream(factorStr);
+			while (std::getline(stream, token, ',') != 0) {
+				const char* start = token.c_str();
+				char* end = NULL;
+				unsigned int id = strtoul(start, &end, 10);
+				if (end == NULL || end == start || *end != '=')
+					return NULL; // TODO error code: invalid values definition
+				values[id] = std::string(end+1);
+			}
+		}
+	}
+
+	if (it == end)
+		unit = "";
+	else {
+		unit = *it++;
+
+		if (unit.length() == 1 && unit[0] == '-')
+			unit.clear();
+	}
+
+	if (it == end)
+		comment = "";
+	else {
+		comment = *it++;
+		if (comment.length() == 1 && comment[0] == '-')
+			comment.clear();
+	}
+
+	for (size_t i = 0; i < sizeof(dataTypes)/sizeof(dataTypes[0]); i++) {
+		dataType_t dataType = dataTypes[i];
+		if (strcasecmp(typeStr, dataType.name) == 0) {
+			if ((dataType.flags&ADJ) != 0) {
+				if (length == 0)
+					length = 1; // minimum length defaults to 1
+				else if (length > dataType.numBytes)
+					return NULL; // invalid length
+			}
+			else if (length == 0)
+				length = dataType.numBytes;
+			else if (length != dataType.numBytes)
+				continue; // check for another one with same name but different length
+
+			switch (dataType.type) {
+			case bt_str:
+			case bt_hexstr:
+			case bt_date: // TODO better numeric?
+			case bt_time: // TODO better numeric?
+				return new StringDataField(name, partType, offset, length, dataType, unit, comment);
+			case bt_list:
+				if (values.empty() == false) {
+					if (values.begin()->first < dataType.minValueOrLength)
+						return NULL; // invalid value id
+					std::map<unsigned int, std::string>::iterator end = values.end();
+					end--;
+					if (end->first > dataType.maxValueOrLength)
+						return NULL; // invalid value id
+				}
+				else if ((dataType.flags&DAY) != 0) {
+					for (unsigned int i=0; i<sizeof(dayNames)/sizeof(dayNames[0]); i++)
+						values[dataType.minValueOrLength + i] = dayNames[i];
+				}
+				return new ValueListDataField(name, partType, offset, length, dataType, unit, comment, values);
+			case bt_number:
+				if (values.empty() || (dataType.flags&LST) == 0)
+					return new NumberDataField(name, partType, offset, length, dataType, unit, comment, factor);
+				return new ValueListDataField(name, partType, offset, length, dataType, unit, comment, values);
+			}
+		}
+	}
+	return NULL; // TODO error code: invalid type definition
+}
+
+const std::string DataField::read(SymbolString& masterData, SymbolString& slaveData, bool verbose)
+{
+	SymbolString& input = m_partType == pt_masterData ? masterData : slaveData;
+	switch (m_partType) {
+	case pt_masterData:
+		break;
+	case pt_slaveData:
+		break;
+	default:
+		return "invalid part type";
+	}
+	std::ostringstream output;
+	if (verbose)
+		output << m_name << "=";
+
+	if (readSymbols(input, output) == false)
+		return "unable to parse";
+
+	if (verbose && m_unit.length() > 0)
+		output << " " << m_unit;
+	if (verbose && m_comment.length() > 0)
+		output << " [" << m_comment << "]";
+	return output.str();
+}
+
+bool DataField::write(const std::string& value, SymbolString& masterData, SymbolString& slaveData)
+{
+	SymbolString& output = m_partType == pt_masterData ? masterData : slaveData;
+	switch (m_partType) {
+	case pt_masterData:
+	case pt_slaveData:
+		break;
+	default:
+		return false; // TODO error code
+	}
+	std::istringstream input(value);
+	if (writeSymbols(input, output) == false)
+		return false; // TODO error code
+	return true;
+}
+
+
+
+bool StringDataField::readSymbols(SymbolString& input, std::ostringstream& output)
+{
+	size_t start = m_offset, end = m_offset + m_length;
+	int incr = 1;
+	unsigned char ch;
+
+	if (end > input.size())
+		return false; // TODO error not enough data available
+
+	if ((m_dataType.flags&REV) != 0) { // reverted binary representation (most significant byte first)
+		end = start - 1;
+		start = m_offset + m_length - 1;
+		incr = -1;
+	}
+
+	for (size_t pos = start, i = 0; pos != end; pos += incr, i++) {
+		if (m_length == 4 && i == 2 && m_dataType.type == bt_date)
+			continue; // skip weekday in between
+		ch = input[pos];
+		if ((m_dataType.flags & BCD) != 0) {
+			if ((ch & 0xf0) > 0x90 || (ch & 0x0f) > 0x09)
+				return false; // invalid BCD
+			ch = (ch >> 4) * 10 + (ch & 0x0f);
+		}
+		switch (m_dataType.type) {
+		case bt_hexstr:
+			if (i > 0)
+				output << ' ';
+			output << std::nouppercase << std::setw(2) << std::hex
+			       << std::setfill('0') << static_cast<unsigned>(ch);
+			break;
+		case bt_date:
+			if (i + 1 == m_length)
+				output << (2000+ch);
+			else if (ch < 1 || (i == 0 && ch > 31) || (i == 1 && ch > 12))
+				return false; // invalid date
+			else
+				output << std::setw(2) << std::setfill('0') << static_cast<unsigned>(ch) << ".";
+			break;
+		case bt_time:
+			if (m_length == 1) { // truncated time
+				if (ch > 24*6)
+					return false; // invalid time
+				output << std::setw(2) << std::setfill('0') << static_cast<unsigned>(ch/6) << ":"
+				       << std::setw(2) << std::setfill('0') << static_cast<unsigned>((ch%6)*10);
+				break;
+			}
+			if (i > 0)
+				output << ":";
+			if ((i == 0 && ch > 23) || (i > 0 && ch > 59))
+				return false; // invalid time
+			output << std::setw(2) << std::setfill('0') << static_cast<unsigned>(ch);
+			break;
+		default:
+			if (ch < 0x20)
+				ch = m_dataType.replacement;
+			output << static_cast<char>(ch);
+			break;
+		}
+	}
+
+	return true;
+}
+
+bool StringDataField::writeSymbols(std::istringstream& input, SymbolString& output)
+{
+	size_t start = m_offset, end = m_offset + m_length;
+	int incr = 1;
+	const char* str;
+	char* strEnd;
+	unsigned long int value = 0, minutes = 0;
+	std::string token;
+
+	if ((m_dataType.flags&REV) != 0) { // reverted binary representation (most significant byte first)
+		end = start - 1;
+		start = m_offset + m_length - 1;
+		incr = -1;
+	}
+
+	for (size_t pos = start, i = 0; pos != end; pos += incr, i++) {
+		switch (m_dataType.type) {
+		case bt_hexstr:
+			while (input.peek()==' ')
+				input.get();
+			token.clear();
+			token.push_back(input.get());
+			if (input.eof() == true)
+				return false; // TODO error code: invalid value
+			token.push_back(input.get());
+			if (input.eof() == true)
+				return false; // TODO error code: invalid value
+
+			str = token.c_str();
+			strEnd = NULL;
+			value = strtoul(str, &strEnd, 16);
+			if (strEnd != str+strlen(str))
+				return false; // TODO error code: invalid value
+			break;
+		case bt_date:
+			if (m_length == 4 && i == 2)
+				continue; // skip weekday in between
+			if (std::getline(input, token, '.') == 0)
+				return false;
+			str = token.c_str();
+			strEnd = NULL;
+			value = strtoul(str, &strEnd, 10);
+			if (strEnd != str+strlen(str))
+				return false; // TODO error code: invalid value
+			if (i + 1 == m_length && value >= 2000)
+				value -= 2000;
+			else if (value < 1 || (i == 0 && value > 31) || (i == 1 && value > 12))
+				return false; // invalid date
+			break;
+		case bt_time:
+			if (std::getline(input, token, ':') == 0)
+				return false;
+			str = token.c_str();
+			strEnd = NULL;
+			value = strtoul(str, &strEnd, 10);
+			if (strEnd != str+strlen(str))
+				return false; // TODO error code: invalid value
+			if (m_length == 1) { // truncated time
+				if (std::getline(input, token, ':') == 0)
+					return false;
+				str = token.c_str();
+				strEnd = NULL;
+				minutes = strtoul(str, &strEnd, 10);
+				if (strEnd != str+strlen(str))
+					return false; // TODO error code: invalid value
+				if ((minutes % 10) != 0)
+					return false; // invalid time
+				value = value*6 + (minutes / 10);
+				if (value > 24*6)
+					return false; // invalid time
+				break;
+			}
+			if ((i == 0 && value > 23) || (i > 0 && value > 59))
+				return false; // invalid time
+			break;
+		default:
+			value = input.get();
+			if (input.eof() == true || value < 0x20)
+				value = m_dataType.replacement;
+			break;
+		}
+		if ((m_dataType.flags & BCD) != 0) {
+			if (value > 99)
+				return false; // invalid BCD
+			value = (value/10)<<4 | (value%10);
+		}
+		if (value > 0xff)
+			return false;
+		output[pos] = (unsigned char)value;
+	}
+
+	return true;
+}
+
+
+bool NumericDataField::readRawValue(SymbolString& input, unsigned int& value)
+{
+	size_t start = m_offset, end = m_offset + m_length;
+	int incr = 1;
+	unsigned char ch;
+
+	if (end > input.size())
+		return false; // TODO error not enough data available
+
+	if ((m_dataType.flags&REV) != 0) { // reverted binary representation (most significant byte first)
+		end = start - 1;
+		start = m_offset + m_length - 1;
+		incr = -1;
+	}
+
+	value = 0;
+	for (size_t pos = start, exp = 1; pos != end; pos += incr) {
+		ch = input[pos];
+		if ((m_dataType.flags & BCD) != 0) {
+			if (ch == m_dataType.replacement) {
+				value = m_dataType.replacement;
+				return true;
+			}
+			if ((ch & 0xf0) > 0x90 || (ch & 0x0f) > 0x09)
+				return false; // invalid BCD
+
+			ch = (ch >> 4) * 10 + (ch & 0x0f);
+			value += ch*exp;
+			exp = exp*100;
+		}
+		else {
+			value |= ch*exp;
+			exp = exp<<8;
+		}
+	}
+	return true;
+}
+
+bool NumericDataField::writeRawValue(unsigned int value, SymbolString& output)
+{
+	size_t start = m_offset, end = m_offset + m_length;
+	int incr = 1;
+	unsigned char ch;
+
+	if ((m_dataType.flags&REV) != 0) { // reverted binary representation (most significant byte first)
+		end = start - 1;
+		start = m_offset + m_length - 1;
+		incr = -1;
+	}
+
+	for (size_t pos = start, exp = 1; pos != end; pos += incr) {
+		if ((m_dataType.flags & BCD) != 0) {
+			if (value == m_dataType.replacement)
+				ch = m_dataType.replacement;
+			else {
+				ch = (value/exp)%100;
+				ch = ((ch/10)<<4) | (ch%10);
+			}
+			exp = exp*100;
+		}
+		else {
+			ch = (value/exp)&0xff;
+			exp = exp<<8;
+		}
+		output[pos] = ch;
+	}
+
+	return true;
+}
+
+
+bool NumberDataField::readSymbols(SymbolString& input, std::ostringstream& output)
+{
+	unsigned int value = 0;
+	int signedValue;
+
+	if (readRawValue(input, value) == false)
+		return false;
+
+	if (value == m_dataType.replacement) {
+		output << "-";
+		return true;
+	}
+
+	if ((m_dataType.flags&SIG) != 0 && (value & (1 << (m_dataType.numBytes*8 - 1))) != 0) // negative signed value
+		if (m_dataType.numBytes == 4)
+			signedValue = (int)value;
+		else
+			signedValue = (int)value - (1 << (m_dataType.numBytes*8));
+	else {
+		if (m_dataType.numBytes == 4) {
+			if (m_factor == 1.0)
+				output << static_cast<unsigned>(value);
+			else
+				output << std::setprecision(3) << std::fixed << static_cast<float>(value * m_factor);
+			return true;
+		}
+
+		signedValue = (int)value;
+	}
+
+	if (m_factor == 1.0)
+		output << static_cast<int>(signedValue);
+	else
+		output << std::setprecision(3) << std::fixed << static_cast<float>(signedValue * m_factor);
+
+	return true;
+}
+
+bool NumberDataField::writeSymbols(std::istringstream& input, SymbolString& output)
+{
+	unsigned int value;
+
+	const char* str = input.str().c_str();
+	if (strcasecmp(str, "-") == 0)
+		// replacement value
+		value = m_dataType.replacement;
+	else {
+		char* strEnd = NULL;
+		if (m_factor == 1.0) {
+			if ((m_dataType.flags&SIG) != 0) {
+				int signedValue = strtol(str, &strEnd, 10);
+				if (signedValue < 0 && m_dataType.numBytes != 4)
+					value = (unsigned int)(signedValue + (1<<(m_dataType.numBytes*8)));
+				else
+					value = (unsigned int)signedValue;
+			}
+			else
+				value = strtoul(str, &strEnd, 10);
+			if (strEnd != str+strlen(str))
+				return false; // TODO error code: invalid value
+		}
+		else {
+			char* strEnd = NULL;
+			double dvalue = strtod(str, &strEnd);
+			if (strEnd != str+strlen(str))
+				return false; // TODO error code: invalid value
+			dvalue = dvalue / m_factor + 0.5; // round
+			if ((m_dataType.flags&SIG) != 0) {
+				if (dvalue < -(1LL<<(8*m_length)) || dvalue >= (1LL<<(8*m_length)))
+					return false; // TODO error code: invalid value
+				if (dvalue < 0 && m_dataType.numBytes != 4)
+					value = (unsigned int)(dvalue + (1<<(m_dataType.numBytes*8)));
+				else
+					value = (unsigned int)dvalue;
+			}
+			else {
+				if (dvalue < 0.0 || dvalue >= (1LL<<(8*m_length)))
+					return false; // TODO error code: invalid value
+				value = (unsigned int)dvalue;
+			}
+		}
+	}
+
+	return writeRawValue(value, output);
+}
+
+
+bool ValueListDataField::readSymbols(SymbolString& input, std::ostringstream& output)
+{
+	unsigned int value = 0;
+
+	if (readRawValue(input, value) == false)
+		return false;
+
+	if (value == m_dataType.replacement) {
+		output << "-";
+		return true;
+	}
+
+	std::map<unsigned int, std::string>::iterator it = m_values.find(value);
+	if (it == m_values.end())
+		return false;
+
+	output << it->second;
+	return true;
+}
+
+bool ValueListDataField::writeSymbols(std::istringstream& input, SymbolString& output)
+{
+	std::string str;
+	input >> str;
+
+	for (std::map<unsigned int, std::string>::iterator it = m_values.begin(); it != m_values.end(); it++)
+		if (it->second.compare(str) == 0)
+			return writeRawValue(it->first, output);
+
+	return false;
+}
+
+
+} //namespace
+

src/lib/ebus/data.h

@@ -0,0 +1,313 @@
+/*
+ * Copyright (C) John Baier 2014 <ebusd@johnm.de>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_DATA_H_
+#define LIBEBUS_DATA_H_
+
+#include "symbol.h"
+#include <string>
+#include <vector>
+#include <map>
+
+namespace libebus
+{
+
+
+/** the message part in which a data field is stored. */
+enum PartType {
+	pt_masterData, // stored in master data
+	pt_slaveData,  // stored in slave data
+	};
+
+/** the available base data types. */
+enum BaseType {
+	bt_str,    // text string in a StringDataField
+	bt_hexstr, // hex digit string in a StringDataField
+	bt_date,   // date in a StringDataField
+	bt_time,   // time in a StringDataField
+	bt_list,   // numeric list value in a ValueListDataField
+	bt_number  // number value in a NumberDataField
+};
+
+/** flags for dataType_t. */
+const unsigned int ADJ = 0x01; // adjustable length, numBytes is maximum length
+const unsigned int BCD = 0x02; // binary representation is BCD
+const unsigned int REV = 0x04; // reverted binary representation (most significant byte first)
+const unsigned int SIG = 0x08; // signed value
+const unsigned int LST = 0x10; // value list is possible (without applied factor)
+const unsigned int DAY = 0x20; // default value list is week days
+
+/** the structure for defining field types with their properties. */
+typedef struct {
+	const char* name;                    // field identifier
+	const unsigned int numBytes;         // number of bytes (maximum length if ADJ flag is set)
+	const BaseType type;                 // base data type
+	const unsigned int flags;            // flags (e.g. BCD)
+	const unsigned int replacement;      // replacement value (fill-up value for bt_str/bt_hexstr)
+	const unsigned int minValueOrLength; // minimum binary value (minimum length of string for StringDataField)
+	const unsigned int maxValueOrLength; // maximum binary value (maximum length of string for StringDataField)
+	const unsigned int divisor;          // divisor for bt_number values (or 0 for non-numeric)
+} dataType_t;
+
+
+/**
+ * @brief Base class for all kinds of data fields.
+ */
+class DataField
+{
+public:
+	/**
+	 * @brief Constructs a new instance.
+	 * @param name the field name.
+	 * @param partType the message part in which the field is stored.
+	 * @param offset the offset to the first symbol in the message part in which the field is stored.
+	 * @param length the number of symbols in the message part in which the field is stored.
+	 * @param dataType the data type definition.
+	 * @param unit the value unit.
+	 * @param comment the field comment.
+	 */
+	DataField(const std::string name, const PartType partType,
+			const unsigned char offset, const unsigned char length,
+			const dataType_t dataType, const std::string unit,
+			const std::string comment)
+		: m_name(name), m_partType(partType), m_offset(offset),
+		  m_length(length), m_dataType(dataType), m_unit(unit),
+		  m_comment(comment) {}
+	/**
+	 * @brief Destructor.
+	 */
+	virtual ~DataField() {}
+
+	/**
+	 * @brief Factory method for creating a new instance.
+	 * @param dstAddress the destination bus address.
+	 * @param isSetMessage whther the field is part of a set message.
+	 * @param it the iterator to traverse for the definition parts.
+	 * @param end the iterator pointing to the end of the definition parts.
+	 */
+	static DataField* create(const unsigned char dstAddress, const bool isSetMessage,
+			std::vector<std::string>::iterator& it, const std::vector<std::string>::iterator end);
+
+	/**
+	 * @brief Reads the value from the master or slave @a SymbolString.
+	 * @param masterData the unescaped master data @a SymbolString for reading binary data.
+	 * @param slaveData the unescaped slave data @a SymbolString for reading binary data.
+	 * @return the formatted value as string.
+	 */
+	const std::string read(SymbolString& masterData, SymbolString& slaveData, bool verbose=false);
+	/**
+	 * @brief Writes the value to the master or slave @a SymbolString.
+	 * @param masterData the unescaped master data @a SymbolString for writing binary data.
+	 * @param slaveData the unescaped slave data @a SymbolString for writing binary data.
+	 * @param value the formatted value as string.
+	 */
+	bool write(const std::string& value, SymbolString& masterData, SymbolString& slaveData);
+
+protected:
+	/**
+	 * @brief Internal method for reading the field from a @a SymbolString.
+	 * @param input the unescaped @a SymbolString to read the binary value from.
+	 * @param output the ostringstream to append the formatted value to.
+	 * @return true if the value was parsed successfully.
+	 */
+	virtual bool readSymbols(SymbolString& input, std::ostringstream& output) = 0;
+	/**
+	 * @brief Internal method for writing the field to a @a SymbolString.
+	 * @param input the istringstream to parse the formatted value from.
+	 * @param output the unescaped @a SymbolString to write the binary value to.
+	 * @return true if the value was formatted successfully.
+	 */
+	virtual bool writeSymbols(std::istringstream& input, SymbolString& output) = 0;
+
+	/** the field name. */
+	const std::string m_name;
+	/** the message part in which the field is stored. */
+	const PartType m_partType;
+	/** the offset to the first symbol in the message part in which the field is stored. */
+	const unsigned char m_offset;
+	/** the number of symbols in the message part in which the field is stored. */
+	const unsigned char m_length;
+	/** the data type definition. */
+	const dataType_t m_dataType;
+	/** the value unit. */
+	const std::string m_unit;
+	/** the field comment. */
+	const std::string m_comment;
+};
+
+
+/**
+ * @brief Base class for all string based data fields.
+ */
+class StringDataField : public DataField
+{
+public:
+	/**
+	 * @brief Constructs a new instance.
+	 * @param name the field name.
+	 * @param partType the message part in which the field is stored.
+	 * @param offset the offset to the first symbol in the message part in which the field is stored.
+	 * @param length the number of symbols in the message part in which the field is stored.
+	 * @param dataType the data type definition.
+	 * @param unit the value unit.
+	 * @param comment the field comment.
+	 */
+	StringDataField(const std::string name, const PartType partType,
+			const unsigned char offset, const unsigned char length,
+			const dataType_t dataType, const std::string unit,
+			const std::string comment)
+		: DataField(name, partType, offset, length, dataType, unit, comment) {}
+	/**
+	 * @brief Destructor.
+	 */
+	virtual ~StringDataField() {}
+
+protected:
+	virtual bool readSymbols(SymbolString& input, std::ostringstream& output);
+	virtual bool writeSymbols(std::istringstream& input, SymbolString& output);
+
+};
+
+
+/**
+ * @brief Base class for all numeric data fields.
+ */
+class NumericDataField : public DataField
+{
+public:
+	/**
+	 * @brief Constructs a new instance.
+	 * @param name the field name.
+	 * @param partType the message part in which the field is stored.
+	 * @param offset the offset to the first symbol in the message part in which the field is stored.
+	 * @param length the number of symbols in the message part in which the field is stored.
+	 * @param dataType the data type definition.
+	 * @param comment the field comment.
+	 * @param unit the value unit.
+	 * @param replacement the (binary) replacement value to use if the value is not set.
+	 */
+	NumericDataField(const std::string name, const PartType partType,
+			const unsigned char offset, const unsigned char length,
+			const dataType_t dataType, const std::string unit,
+			const std::string comment)
+		: DataField(name, partType, offset, length, dataType, unit, comment) {}
+	/**
+	 * @brief Destructor.
+	 */
+	virtual ~NumericDataField() {}
+
+protected:
+	/**
+	 * @brief Internal method for reading the raw value from a @a SymbolString.
+	 * @param input the unescaped @a SymbolString to read the binary value from.
+	 * @param value the variable in which to store the raw value.
+	 * @return true if the value was read successfully.
+	 */
+	bool readRawValue(SymbolString& input, unsigned int& value);
+	/**
+	 * @brief Internal method for writing the raw value to a @a SymbolString.
+	 * @param value the raw value to write.
+	 * @param output the unescaped @a SymbolString to write the binary value to.
+	 * @return true if the value was written successfully.
+	 */
+	bool writeRawValue(unsigned int value, SymbolString& output);
+
+};
+
+/**
+ * @brief Base class for all numeric data fields with a number representation.
+ */
+class NumberDataField : public NumericDataField
+{
+public:
+	/**
+	 * @brief Constructs a new instance.
+	 * @param name the field name.
+	 * @param partType the message part in which the field is stored.
+	 * @param offset the offset to the first symbol in the message part in which the field is stored.
+	 * @param length the number of symbols in the message part in which the field is stored.
+	 * @param dataType the data type definition.
+	 * @param comment the field comment.
+	 * @param unit the value unit.
+	 * @param replacement the (binary) replacement value to use if the value is not set.
+	 * @param factor the factor to apply on the value.
+	 */
+	NumberDataField(const std::string name, const PartType partType,
+			const unsigned char offset, const unsigned char length,
+			const dataType_t dataType, const std::string unit,
+			const std::string comment, const float factor)
+		: NumericDataField(name, partType, offset, length, dataType, unit, comment),
+		  m_factor(factor / dataType.divisor) {}
+	/**
+	 * @brief Destructor.
+	 */
+	virtual ~NumberDataField() {}
+
+protected:
+	virtual bool readSymbols(SymbolString& input, std::ostringstream& output);
+	virtual bool writeSymbols(std::istringstream& input, SymbolString& output);
+
+	/** the factor to apply on the value. */
+	const float m_factor;
+
+};
+
+/**
+ * @brief A numeric data field with a list of value=text assignments and a string representation.
+ */
+class ValueListDataField : public NumericDataField
+{
+public:
+	/**
+	 * @brief Constructs a new instance.
+	 * @param name the field name.
+	 * @param partType the message part in which the field is stored.
+	 * @param offset the offset to the first symbol in the message part in which the field is stored.
+	 * @param length the number of symbols in the message part in which the field is stored.
+	 * @param dataType the data type definition.
+	 * @param comment the field comment.
+	 * @param unit the value unit.
+	 * @param factor the factor to apply on the value.
+	 * @param replacement the (binary) replacement value to use if the value is not set.
+	 * @param values the value=text assignments.
+	 */
+	ValueListDataField(const std::string name, const PartType partType,
+			const unsigned char offset, const unsigned char length,
+			const dataType_t dataType, const std::string unit,
+			const std::string comment, const std::map<unsigned int, std::string> values)
+		: NumericDataField(name, partType, offset, length, dataType, unit, comment),
+		  m_values(values) {}
+	/**
+	 * @brief Destructor.
+	 */
+	virtual ~ValueListDataField() {}
+
+protected:
+	virtual bool readSymbols(SymbolString& input, std::ostringstream& output);
+	virtual bool writeSymbols(std::istringstream& input, SymbolString& output);
+
+	/** the value=text assignments. */
+	std::map<unsigned int, std::string> m_values;
+
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_DATA_H_

src/lib/ebus/decode.cpp

@@ -0,0 +1,352 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "decode.h"
+#include <cstdlib>
+#include <sstream>
+#include <iomanip>
+#include <iostream>
+#include <algorithm>
+#include <vector>
+#include <cstring>
+
+namespace libebus
+{
+
+
+Decode::Decode(const std::string& data, const std::string& factor)
+	: m_data(data)
+{
+	if ((factor.find_first_not_of("0123456789.") == std::string::npos) == true)
+		m_factor = static_cast<float>(strtod(factor.c_str(), NULL));
+	else
+		m_factor = 1.0;
+}
+
+
+std::string DecodeHEX::decode()
+{
+	std::ostringstream result;
+
+	for (size_t i = 0; i < m_data.length()/2; i++)
+		result << m_data.substr(i*2, 2) << " ";
+
+	return result.str().substr(0, result.str().length()-1);
+}
+
+std::string DecodeUCH::decode()
+{
+	std::stringstream ss;
+	ss << std::hex << m_data;
+
+	unsigned short x;
+	ss >> x;
+
+	std::ostringstream result;
+	result << std::setprecision(3) << std::fixed << static_cast<float>(x * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeSCH::decode()
+{
+	std::stringstream ss;
+	ss << std::hex << m_data;
+
+	unsigned short x;
+	ss >> x;
+
+	std::ostringstream result;
+	if ((x & 0x80) == 0x80)
+		result << std::setprecision(3) << std::fixed
+		       << static_cast<float>(static_cast<short>(- ( ((unsigned char) (~ x)) + 1) ) * m_factor);
+	else
+		result << std::setprecision(3) << std::fixed
+		       << static_cast<float>(static_cast<short>(x) * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeUIN::decode()
+{
+	std::stringstream ss;
+	ss << std::hex << m_data;
+
+	unsigned short x;
+	ss >> x;
+
+	std::ostringstream result;
+	result << std::setprecision(3) << std::fixed << static_cast<float>(x * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeSIN::decode()
+{
+	std::stringstream ss;
+	ss << std::hex << m_data;
+
+	unsigned short x;
+	ss >> x;
+
+	std::ostringstream result;
+	result << std::setprecision(3) << std::fixed << static_cast<float>(static_cast<short>(x) * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeULG::decode()
+{
+	std::stringstream ss;
+	ss << std::hex << m_data;
+
+	unsigned int x;
+	ss >> x;
+
+	std::ostringstream result;
+	result << std::setprecision(3) << std::fixed << static_cast<float>(x * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeSLG::decode()
+{
+	std::stringstream ss;
+	ss << std::hex << m_data;
+
+	unsigned int x;
+	ss >> x;
+
+	std::ostringstream result;
+	result << std::setprecision(3) << std::fixed <<static_cast<float>(static_cast<int>(x) * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeFLT::decode()
+{
+	std::stringstream ss;
+	ss << std::hex << m_data;
+
+	short x;
+	ss >> x;
+
+	std::ostringstream result;
+	result << std::setprecision(3) << std::fixed << static_cast<float>(x / 1000.0 * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeSTR::decode()
+{
+	std::ostringstream result;
+
+	for (size_t i = 0; i <= m_data.length()/2; i++) {
+		char tmp = static_cast<char>(strtol(m_data.substr(i*2, 2).c_str(), NULL, 16));
+		if (tmp == 0x00) tmp = 0x20;
+		result << tmp;
+	}
+
+	return result.str().substr(0, result.str().length()-1);
+}
+
+std::string DecodeBCD::decode()
+{
+	std::ostringstream result;
+	unsigned char src = strtol(m_data.c_str(), NULL, 16);
+
+	if ((src & 0x0F) > 0x09 || ((src >> 4) & 0x0F) > 0x09)
+		result << static_cast<short>(0xFF);
+	else
+		result << static_cast<short>(( ( ((src & 0xF0) >> 4) * 10) + (src & 0x0F) ) * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeD1B::decode()
+{
+	std::ostringstream result;
+	unsigned char src = strtol(m_data.c_str(), NULL, 16);
+
+	if ((src & 0x80) == 0x80)
+		result << static_cast<short>((- ( ((unsigned char) (~ src)) + 1) ) * m_factor);
+	else
+		result << static_cast<short>(src * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeD1C::decode()
+{
+	std::ostringstream result;
+	unsigned char src = strtol(m_data.c_str(), NULL, 16);
+
+	if (src > 0xC8)
+		result << static_cast<float>(0xFF);
+	else
+		result << static_cast<float>((src / 2.0) * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeD2B::decode()
+{
+	std::ostringstream result;
+	unsigned char src_lsb = static_cast<char>(strtol(m_data.substr(0, 2).c_str(), NULL, 16));
+	unsigned char src_msb = static_cast<char>(strtol(m_data.substr(2, 2).c_str(), NULL, 16));
+
+	if ((src_msb & 0x80) == 0x80)
+		result << static_cast<float>
+			((- ( ((unsigned char) (~ src_msb)) +
+			 (  ( ((unsigned char) (~ src_lsb)) + 1) / 256.0) ) ) * m_factor);
+
+	else
+		result << static_cast<float>((src_msb + (src_lsb / 256.0)) * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeD2C::decode()
+{
+	std::ostringstream result;
+	unsigned char src_lsb = static_cast<char>(strtol(m_data.substr(0, 2).c_str(), NULL, 16));
+	unsigned char src_msb = static_cast<char>(strtol(m_data.substr(2, 2).c_str(), NULL, 16));
+
+	if ((src_msb & 0x80) == 0x80)
+		result << static_cast<float>
+		((- ( ( ( ((unsigned char) (~ src_msb)) * 16.0) ) +
+		      ( ( ((unsigned char) (~ src_lsb)) & 0xF0) >> 4) +
+		    ( ( ( ((unsigned char) (~ src_lsb)) & 0x0F) +1 ) / 16.0) ) ) * m_factor);
+
+	else
+		result << static_cast<float>(( (src_msb * 16.0) + ((src_lsb & 0xF0) >> 4) +
+					      ((src_lsb & 0x0F) / 16.0) ) * m_factor);
+
+	return result.str();
+}
+
+std::string DecodeBDA::decode()
+{
+	std::ostringstream result;
+	Decode* decode;
+	short array[3];
+	for (int i = 0; i < 3; i++) {
+		decode = new DecodeBCD(m_data.substr(i*2, 2), "1.0");
+		array[i] = static_cast<short>(strtol(decode->decode().c_str(), NULL, 10));
+		delete decode;
+	}
+
+	result << std::setw(2) << std::setfill('0') << array[0] << "."
+	       << std::setw(2) << std::setfill('0') << array[1] << "."
+	       << array[2] + 2000;
+
+	return result.str();
+}
+
+std::string DecodeHDA::decode()
+{
+	std::ostringstream result;
+	short dd = static_cast<short>(strtol(m_data.substr(0, 2).c_str(), NULL, 16));
+	short mm = static_cast<short>(strtol(m_data.substr(2, 2).c_str(), NULL, 16));
+	short yy = static_cast<short>(strtol(m_data.substr(4, 2).c_str(), NULL, 16));
+
+	result << std::setw(2) << std::setfill('0') << dd << "."
+	       << std::setw(2) << std::setfill('0') << mm << "."
+	       << yy + 2000;
+
+	return result.str();
+}
+
+std::string DecodeBTI::decode()
+{
+	std::ostringstream result;
+	Decode* decode;
+	short array[3];
+	for (int i = 0; i < 3; i++) {
+		decode = new DecodeBCD(m_data.substr(i*2, 2), "1.0");
+		array[i] = static_cast<short>(strtol(decode->decode().c_str(), NULL, 10));
+		delete decode;
+	}
+
+	result << std::setw(2) << std::setfill('0') << array[0] << ":"
+	       << std::setw(2) << std::setfill('0') << array[1] << ":"
+	       << std::setw(2) << std::setfill('0') << array[2];
+
+	return result.str();
+}
+
+std::string DecodeHTI::decode()
+{
+	std::ostringstream result;
+	short hh = static_cast<short>(strtol(m_data.substr(0, 2).c_str(), NULL, 16));
+	short mm = static_cast<short>(strtol(m_data.substr(2, 2).c_str(), NULL, 16));
+	short ss = static_cast<short>(strtol(m_data.substr(4, 2).c_str(), NULL, 16));
+
+	result << std::setw(2) << std::setfill('0') << hh << ":"
+	       << std::setw(2) << std::setfill('0') << mm << ":"
+	       << std::setw(2) << std::setfill('0') << ss;
+
+	return result.str();
+}
+
+std::string DecodeBDY::decode()
+{
+	const char *days[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun", "Err"};
+
+	std::ostringstream result;
+	short day = static_cast<short>(strtol(m_data.c_str(), NULL, 16));
+
+	if (day < 0 || day > 6)
+		day = 7;
+
+	result << days[day];
+
+	return result.str();
+}
+
+std::string DecodeHDY::decode()
+{
+	const char *days[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun", "Err"};
+
+	std::ostringstream result;
+	short day = static_cast<short>(strtol(m_data.c_str(), NULL, 16)) - 1;
+
+	if (day < 0 || day > 6)
+		day = 7;
+
+	result << days[day];
+
+	return result.str();
+}
+
+std::string DecodeTTM::decode()
+{
+	std::ostringstream result;
+	short hh = static_cast<short>(strtol(m_data.c_str(), NULL, 16)) / 6;
+	short mm = static_cast<short>(strtol(m_data.c_str(), NULL, 16)) % 6 * 10;
+
+	result << std::setw(2) << std::setfill('0') << hh << ":"
+	       << std::setw(2) << std::setfill('0') << mm;
+
+	return result.str();
+}
+
+
+} //namespace
+

src/lib/ebus/decode.h

@@ -0,0 +1,291 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_DECODE_H_
+#define LIBEBUS_DECODE_H_
+
+#include <string>
+
+namespace libebus
+{
+
+
+class Decode
+{
+
+public:
+	Decode(const std::string& data, const std::string& factor = "");
+	virtual ~Decode() {}
+
+	virtual std::string decode() = 0;
+
+protected:
+	std::string m_data;
+	float m_factor;
+
+};
+
+
+class DecodeHEX : public Decode
+{
+
+public:
+	DecodeHEX(const std::string& data) : Decode(data) {}
+	~DecodeHEX() {}
+
+	std::string decode();
+
+};
+
+class DecodeUCH : public Decode
+{
+
+public:
+	DecodeUCH(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeUCH() {}
+
+	std::string decode();
+
+};
+
+class DecodeSCH : public Decode
+{
+
+public:
+	DecodeSCH(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeSCH() {}
+
+	std::string decode();
+
+};
+
+class DecodeUIN : public Decode
+{
+
+public:
+	DecodeUIN(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeUIN() {}
+
+	std::string decode();
+
+};
+
+class DecodeSIN : public Decode
+{
+
+public:
+	DecodeSIN(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeSIN() {}
+
+	std::string decode();
+
+};
+
+class DecodeULG : public Decode
+{
+
+public:
+	DecodeULG(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeULG() {}
+
+	std::string decode();
+
+};
+
+class DecodeSLG : public Decode
+{
+
+public:
+	DecodeSLG(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeSLG() {}
+
+	std::string decode();
+
+};
+
+class DecodeFLT : public Decode
+{
+
+public:
+	DecodeFLT(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeFLT() {}
+
+	std::string decode();
+
+};
+
+class DecodeSTR : public Decode
+{
+
+public:
+	DecodeSTR(std::string data) : Decode(data) {}
+	~DecodeSTR() {}
+
+	std::string decode();
+
+};
+
+class DecodeBCD : public Decode
+{
+
+public:
+	DecodeBCD(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeBCD() {}
+
+	std::string decode();
+
+};
+
+class DecodeD1B : public Decode
+{
+
+public:
+	DecodeD1B(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeD1B() {}
+
+	std::string decode();
+
+};
+
+class DecodeD1C : public Decode
+{
+
+public:
+	DecodeD1C(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeD1C() {}
+
+	std::string decode();
+
+};
+
+class DecodeD2B : public Decode
+{
+
+public:
+	DecodeD2B(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeD2B() {}
+
+	std::string decode();
+
+};
+
+class DecodeD2C : public Decode
+{
+
+public:
+	DecodeD2C(const std::string& data, const std::string& factor)
+		: Decode(data, factor) {}
+	~DecodeD2C() {}
+
+	std::string decode();
+
+};
+
+class DecodeBDA : public Decode
+{
+
+public:
+	DecodeBDA(const std::string& data) : Decode(data) {}
+	~DecodeBDA() {}
+
+	std::string decode();
+
+};
+
+class DecodeHDA : public Decode
+{
+
+public:
+	DecodeHDA(const std::string& data) : Decode(data) {}
+	~DecodeHDA() {}
+
+	std::string decode();
+
+};
+
+class DecodeBTI : public Decode
+{
+
+public:
+	DecodeBTI(const std::string& data) : Decode(data) {}
+	~DecodeBTI() {}
+
+	std::string decode();
+
+};
+
+class DecodeHTI : public Decode
+{
+
+public:
+	DecodeHTI(const std::string& data) : Decode(data) {}
+	~DecodeHTI() {}
+
+	std::string decode();
+
+};
+
+class DecodeBDY : public Decode
+{
+
+public:
+	DecodeBDY(const std::string& data) : Decode(data) {}
+	~DecodeBDY() {}
+
+	std::string decode();
+
+};
+
+class DecodeHDY : public Decode
+{
+
+public:
+	DecodeHDY(const std::string& data) : Decode(data) {}
+	~DecodeHDY() {}
+
+	std::string decode();
+
+};
+
+class DecodeTTM : public Decode
+{
+
+public:
+	DecodeTTM(const std::string& data) : Decode(data) {}
+	~DecodeTTM() {}
+
+	std::string decode();
+
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_DECODE_H_

src/lib/ebus/dump.cpp

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "dump.h"
+#include <fstream>
+#include <cstdio>
+
+namespace libebus
+{
+
+int Dump::write(const char* byte)
+{
+	int ret = 0;
+
+	std::ofstream fs(m_filename.c_str(), std::ios::out | std::ios::binary | std::ios::app);
+
+	if (fs == 0)
+		return -1;
+
+	fs.write(byte, 1);
+
+	if (fs.tellp() >= m_filesize * 1024) {
+		std::string oldfile;
+		oldfile += m_filename;
+		oldfile += ".old";
+		ret = rename(m_filename.c_str(), oldfile.c_str());
+	}
+
+	fs.close();
+
+	return ret;
+}
+
+
+
+} //namespace
+

src/lib/ebus/dump.h

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_DUMP_H_
+#define LIBEBUS_DUMP_H_
+
+#include <string>
+
+namespace libebus
+{
+
+/**
+ * @brief Class for writing raw bytes to binary file.
+ */
+class Dump
+{
+
+public:
+	/**
+	 * @brief Create a new instance to write dump files.
+	 * @param filename which will be used for dumping raw bytes.
+	 * @param filesize max. Size of the dump file, before switching.
+	 */
+	Dump(std::string filename, long filesize)
+		: m_filename(filename), m_filesize(filesize) {}
+
+	/**
+	 * @brief write byte to dump file.
+	 * @param byte to write
+	 * @return -1 if dump file cannot opened or renaming of dump file failed.
+	 */
+	int write(const char* byte);
+
+	/**
+	 * @brief setter for dump file name.
+	 * @param filename which will be used for dumping raw bytes.
+	 */
+	void setFilename(const std::string& filename) { m_filename = filename; }
+
+	/**
+	 * @brief setter for max size of dump file.
+	 * @param filesize max. Size of the dump file, before switching.
+	 */
+	void setFilesize(const long filesize) { m_filesize = filesize; }
+
+private:
+	/** the name of dump file*/
+	std::string m_filename;
+	/** max. size of dump file */
+	long m_filesize;
+
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_DUMP_H_

src/lib/ebus/encode.cpp

@@ -0,0 +1,369 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "encode.h"
+#include <cstdlib>
+#include <sstream>
+#include <iomanip>
+#include <iostream>
+#include <algorithm>
+#include <vector>
+#include <cstring>
+
+namespace libebus
+{
+
+
+Encode::Encode(const std::string& data, const std::string& factor)
+	: m_data(data)
+{
+	if ((factor.find_first_not_of("0123456789.") == std::string::npos) == true)
+		m_factor = static_cast<float>(strtod(factor.c_str(), NULL));
+	else
+		m_factor = 1.0;
+}
+
+
+std::string EncodeHEX::encode()
+{
+	m_data.erase(std::remove_if(m_data.begin(), m_data.end(), isspace), m_data.end());
+
+	return m_data;
+}
+
+std::string EncodeUCH::encode()
+{
+	std::ostringstream result;
+	unsigned short src = static_cast<unsigned short>(strtod(m_data.c_str(), NULL) / m_factor);
+	result << std::setw(2) << std::hex << std::setfill('0') << src;
+
+	return result.str().substr(result.str().length()-2,2);
+}
+
+std::string EncodeSCH::encode()
+{
+	std::ostringstream result;
+	short src = static_cast<short>(strtod(m_data.c_str(), NULL) / m_factor);
+
+	if (src < -127 || src > 127)
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(0x80);
+	else
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(src);
+
+	return result.str().substr(result.str().length()-2,2);
+}
+
+std::string EncodeUIN::encode()
+{
+	std::ostringstream result;
+	unsigned short src = static_cast<unsigned short>(strtod(m_data.c_str(), NULL) / m_factor);
+	result << std::setw(4) << std::hex << std::setfill('0') << src;
+
+	return result.str().substr(2,2) + result.str().substr(0,2);
+}
+
+std::string EncodeSIN::encode()
+{
+	std::ostringstream result;
+	short src = static_cast<short>(strtod(m_data.c_str(), NULL) / m_factor);
+	result << std::setw(4) << std::hex << std::setfill('0') << src;
+
+	return result.str().substr(2,2) + result.str().substr(0,2);
+}
+
+std::string EncodeULG::encode()
+{
+	std::ostringstream result;
+	unsigned long src = static_cast<unsigned long>(strtod(m_data.c_str(), NULL) / m_factor);
+	result << std::setw(8) << std::hex << std::setfill('0') << src;
+
+	return result.str().substr(6,2) + result.str().substr(4,2) +
+	       result.str().substr(2,2) + result.str().substr(0,2);
+}
+
+std::string EncodeSLG::encode()
+{
+	std::ostringstream result;
+	int src = static_cast<int>(strtod(m_data.c_str(), NULL) / m_factor);
+	result << std::setw(8) << std::hex << std::setfill('0') << src;
+
+	return result.str().substr(6,2) + result.str().substr(4,2) +
+	       result.str().substr(2,2) + result.str().substr(0,2);
+}
+
+std::string EncodeFLT::encode()
+{
+	std::ostringstream result;
+	short src = static_cast<short>(strtod(m_data.c_str(), NULL) * 1000.0 / m_factor);
+	result << std::setw(4) << std::hex << std::setfill('0') << src;
+
+	return result.str().substr(2,2) + result.str().substr(0,2);
+}
+
+std::string EncodeSTR::encode()
+{
+	std::ostringstream result;
+
+	for (size_t i = 0; i < m_data.length(); i++)
+		result << std::setw(2) << std::hex << std::setfill('0') << static_cast<short>(m_data[i]);
+
+	return result.str();
+}
+
+std::string EncodeBCD::encode()
+{
+	std::ostringstream result;
+	short src = static_cast<short>(strtod(m_data.c_str(), NULL) / m_factor);
+
+	if (src > 99)
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(0xFF);
+	else
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>( ((src / 10) << 4) | (src % 10) );
+
+	return result.str().substr(result.str().length()-2,2);
+}
+
+std::string EncodeD1B::encode()
+{
+	std::ostringstream result;
+	short src = static_cast<short>(strtod(m_data.c_str(), NULL) / m_factor);
+
+	if (src < -127 || src > 127)
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(0x80);
+	else
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(src);
+
+	return result.str().substr(result.str().length()-2,2);
+}
+
+std::string EncodeD1C::encode()
+{
+	std::ostringstream result;
+	float src = static_cast<float>(strtod(m_data.c_str(), NULL) / m_factor);
+
+	if (src < 0.0 || src > 100.0)
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(0xFF);
+	else
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(src * 2.0);
+
+	return result.str();
+}
+
+std::string EncodeD2B::encode()
+{
+	std::ostringstream result;
+	float src = static_cast<float>(strtod(m_data.c_str(), NULL) / m_factor);
+
+	if (src < -127.999 || src > 127.999) {
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(0x80)
+		       << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(0x00);
+	} else {
+		unsigned char tgt_lsb = static_cast<unsigned>((src - ((short) src)) * 256.0);
+		unsigned char tgt_msb;
+
+		if (src < 0.0 && tgt_lsb != 0x00)
+			tgt_msb = static_cast<unsigned>((short) src - 1);
+		else
+			tgt_msb = static_cast<unsigned>((short) src);
+
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(tgt_msb)
+		       << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(tgt_lsb);
+	}
+
+	return result.str();
+}
+
+std::string EncodeD2C::encode()
+{
+	std::ostringstream result;
+	float src = static_cast<float>(strtod(m_data.c_str(), NULL) / m_factor);
+
+	if (src < -2047.999 || src > 2047.999) {
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(0x80)
+		       << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(0x00);
+	} else {
+		unsigned char tgt_lsb = static_cast<unsigned>(
+			((unsigned char) ( ((short) src) % 16) << 4) +
+			((unsigned char) ( (src - ((short) src)) * 16.0)) );
+
+		unsigned char tgt_msb;
+
+		if (src < 0.0 && tgt_lsb != 0x00)
+			tgt_msb = static_cast<unsigned>((short) (src / 16.0) - 1);
+		else
+			tgt_msb = static_cast<unsigned>((short) src / 16.0);
+
+		result << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(tgt_msb)
+		       << std::setw(2) << std::hex << std::setfill('0')
+		       << static_cast<unsigned>(tgt_lsb);
+	}
+
+	return result.str();
+}
+
+std::string EncodeBDA::encode()
+{
+	// prepare data
+	std::string token;
+	std::istringstream stream(m_data);
+	std::vector<std::string> data;
+
+	while (std::getline(stream, token, '.') != 0)
+		data.push_back(token);
+
+	std::ostringstream result;
+	result << std::setw(2) << std::dec << std::setfill('0')
+	       << static_cast<short>(strtod(data[0].c_str(), NULL))
+	       << std::setw(2) << std::dec << std::setfill('0')
+	       << static_cast<short>(strtod(data[1].c_str(), NULL))
+	       << std::setw(2) << std::dec << std::setfill('0')
+	       << static_cast<short>(strtod(data[2].c_str(), NULL) - 2000);
+
+	return result.str();
+}
+
+std::string EncodeHDA::encode()
+{
+	// prepare data
+	std::string token;
+	std::istringstream stream(m_data);
+	std::vector<std::string> data;
+
+	while (std::getline(stream, token, '.') != 0)
+		data.push_back(token);
+
+	std::ostringstream result;
+	result << std::setw(2) << std::hex << std::setfill('0')
+	       << static_cast<short>(strtod(data[0].c_str(), NULL))
+	       << std::setw(2) << std::hex << std::setfill('0')
+	       << static_cast<short>(strtod(data[1].c_str(), NULL))
+	       << std::setw(2) << std::hex << std::setfill('0')
+	       << static_cast<short>(strtod(data[2].c_str(), NULL) - 2000);
+
+	return result.str();
+}
+
+std::string EncodeBTI::encode()
+{
+	// prepare data
+	std::string token;
+	std::istringstream stream(m_data);
+	std::vector<std::string> data;
+
+	while (std::getline(stream, token, ':') != 0)
+		data.push_back(token);
+
+	std::ostringstream result;
+	result << std::setw(2) << std::dec << std::setfill('0')
+	       << static_cast<short>(strtod(data[0].c_str(), NULL))
+	       << std::setw(2) << std::dec << std::setfill('0')
+	       << static_cast<short>(strtod(data[1].c_str(), NULL))
+	       << std::setw(2) << std::dec << std::setfill('0')
+	       << static_cast<short>(strtod(data[2].c_str(), NULL));
+
+	return result.str();
+}
+
+std::string EncodeHTI::encode()
+{
+	// prepare data
+	std::string token;
+	std::istringstream stream(m_data);
+	std::vector<std::string> data;
+
+	while (std::getline(stream, token, ':') != 0)
+		data.push_back(token);
+
+	std::ostringstream result;
+	result << std::setw(2) << std::hex << std::setfill('0')
+	       << static_cast<short>(strtod(data[0].c_str(), NULL))
+	       << std::setw(2) << std::hex << std::setfill('0')
+	       << static_cast<short>(strtod(data[1].c_str(), NULL))
+	       << std::setw(2) << std::hex << std::setfill('0')
+	       << static_cast<short>(strtod(data[2].c_str(), NULL));
+
+	return result.str();
+}
+
+std::string EncodeBDY::encode()
+{
+	const char *days[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun", "Err"};
+	short day = 7;
+
+	for (short i = 0; i < 7; i++)
+		if (strcasecmp(days[i], m_data.c_str()) == 0)
+			day = i;
+
+	std::ostringstream result;
+	result << std::setw(2) << std::hex << std::setfill('0') << day;
+
+	return result.str();
+}
+
+std::string EncodeHDY::encode()
+{
+	const char *days[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun", "Err"};
+	short day = 8;
+
+	for (short i = 0; i < 7; i++)
+		if (strcasecmp(days[i], m_data.c_str()) == 0)
+			day = i + 1;
+
+	std::ostringstream result;
+	result << std::setw(2) << std::hex << std::setfill('0') << day;
+
+	return result.str();
+}
+
+std::string EncodeTTM::encode()
+{
+	// prepare data
+	std::string token;
+	std::istringstream stream(m_data);
+	std::vector<std::string> data;
+
+	while (std::getline(stream, token, ':') != 0)
+		data.push_back(token);
+
+	std::ostringstream result;
+	result << std::setw(2) << std::hex << std::setfill('0')
+	       << static_cast<short>( (strtod(data[0].c_str(), NULL) * 6)
+				    + (strtod(data[1].c_str(), NULL) / 10) );
+
+	return result.str();
+}
+
+
+} //namespace
+

src/lib/ebus/encode.h

@@ -0,0 +1,291 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_ENCODE_H_
+#define LIBEBUS_ENCODE_H_
+
+#include <string>
+
+namespace libebus
+{
+
+
+class Encode
+{
+
+public:
+	Encode(const std::string& data, const std::string& factor = "");
+	virtual ~Encode() {}
+
+	virtual std::string encode() = 0;
+
+protected:
+	std::string m_data;
+	float m_factor;
+
+};
+
+
+class EncodeHEX : public Encode
+{
+
+public:
+	EncodeHEX(const std::string& data) : Encode(data) {}
+	~EncodeHEX() {}
+
+	std::string encode();
+
+};
+
+class EncodeUCH : public Encode
+{
+
+public:
+	EncodeUCH(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeUCH() {}
+
+	std::string encode();
+
+};
+
+class EncodeSCH : public Encode
+{
+
+public:
+	EncodeSCH(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeSCH() {}
+
+	std::string encode();
+
+};
+
+class EncodeUIN : public Encode
+{
+
+public:
+	EncodeUIN(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeUIN() {}
+
+	std::string encode();
+
+};
+
+class EncodeSIN : public Encode
+{
+
+public:
+	EncodeSIN(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeSIN() {}
+
+	std::string encode();
+
+};
+
+class EncodeULG : public Encode
+{
+
+public:
+	EncodeULG(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeULG() {}
+
+	std::string encode();
+
+};
+
+class EncodeSLG : public Encode
+{
+
+public:
+	EncodeSLG(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeSLG() {}
+
+	std::string encode();
+
+};
+
+class EncodeFLT : public Encode
+{
+
+public:
+	EncodeFLT(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeFLT() {}
+
+	std::string encode();
+
+};
+
+class EncodeSTR : public Encode
+{
+
+public:
+	EncodeSTR(const std::string& data) : Encode(data) {}
+	~EncodeSTR() {}
+
+	std::string encode();
+
+};
+
+class EncodeBCD : public Encode
+{
+
+public:
+	EncodeBCD(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeBCD() {}
+
+	std::string encode();
+
+};
+
+class EncodeD1B : public Encode
+{
+
+public:
+	EncodeD1B(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeD1B() {}
+
+	std::string encode();
+
+};
+
+class EncodeD1C : public Encode
+{
+
+public:
+	EncodeD1C(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeD1C() {}
+
+	std::string encode();
+
+};
+
+class EncodeD2B : public Encode
+{
+
+public:
+	EncodeD2B(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeD2B() {}
+
+	std::string encode();
+
+};
+
+class EncodeD2C : public Encode
+{
+
+public:
+	EncodeD2C(const std::string& data, const std::string& factor)
+		: Encode(data, factor) {}
+	~EncodeD2C() {}
+
+	std::string encode();
+
+};
+
+class EncodeBDA : public Encode
+{
+
+public:
+	EncodeBDA(const std::string& data) : Encode(data) {}
+	~EncodeBDA() {}
+
+	std::string encode();
+
+};
+
+class EncodeHDA : public Encode
+{
+
+public:
+	EncodeHDA(const std::string& data) : Encode(data) {}
+	~EncodeHDA() {}
+
+	std::string encode();
+
+};
+
+class EncodeBTI : public Encode
+{
+
+public:
+	EncodeBTI(const std::string& data) : Encode(data) {}
+	~EncodeBTI() {}
+
+	std::string encode();
+
+};
+
+class EncodeHTI : public Encode
+{
+
+public:
+	EncodeHTI(const std::string& data) : Encode(data) {}
+	~EncodeHTI() {}
+
+	std::string encode();
+
+};
+
+class EncodeBDY : public Encode
+{
+
+public:
+	EncodeBDY(const std::string& data) : Encode(data) {}
+	~EncodeBDY() {}
+
+	std::string encode();
+
+};
+
+class EncodeHDY : public Encode
+{
+
+public:
+	EncodeHDY(const std::string& data) : Encode(data) {}
+	~EncodeHDY() {}
+
+	std::string encode();
+
+};
+
+class EncodeTTM : public Encode
+{
+
+public:
+	EncodeTTM(const std::string& data) : Encode(data) {}
+	~EncodeTTM() {}
+
+	std::string encode();
+
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_ENCODE_H_

src/lib/ebus/port.cpp

@@ -0,0 +1,262 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "port.h"
+#include <cstdlib>
+#include <cstring>
+#include <termios.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <unistd.h>
+
+
+namespace libebus
+{
+
+
+bool Device::isOpen()
+{
+	if (isValid() == false)
+		m_open = false;
+
+	return m_open;
+}
+
+bool Device::isValid()
+{
+	if (m_noDeviceCheck == false) {
+		int port;
+
+		if (ioctl(m_fd, TIOCMGET, &port) == -1) {
+			closeDevice();
+			m_open = false;
+			return false;
+		}
+	}
+
+	return true;
+}
+
+ssize_t Device::sendBytes(const unsigned char* buffer, size_t nbytes)
+{
+	if (isValid() == false)
+		return -1;
+
+	// write bytes to device
+	return write(m_fd, buffer, nbytes);
+}
+
+ssize_t Device::recvBytes(const long timeout, size_t maxCount)
+{
+	if (isValid() == false)
+		return -1; // TODO RESULT_ERR_DEVICE
+
+	if (timeout > 0) {
+		fd_set readfds;
+		struct timeval tdiff;
+
+		// set select timeout
+		tdiff.tv_sec = 0;
+		tdiff.tv_usec = timeout;
+
+		FD_ZERO(&readfds);
+		FD_SET(m_fd, &readfds);
+
+		if (select(m_fd + 1, &readfds, NULL, NULL, &tdiff) != 1)
+			return -2; // TODO RESULT_ERR_TIMEOUT
+	}
+
+	if (maxCount > sizeof(m_buffer))
+		maxCount = sizeof(m_buffer);
+
+	// read bytes from device
+	ssize_t nbytes = read(m_fd, m_buffer, maxCount);
+
+	for (int i = 0; i < nbytes; i++)
+		m_recvBuffer.push(m_buffer[i]);
+
+	return nbytes;
+}
+
+unsigned char Device::getByte()
+{
+	unsigned char byte;
+
+	if (m_recvBuffer.empty() == false) {
+		byte = m_recvBuffer.front();
+		m_recvBuffer.pop();
+
+		return byte;
+	}
+
+	return 0;
+}
+
+
+void DeviceSerial::openDevice(const std::string deviceName, const bool noDeviceCheck)
+{
+	m_noDeviceCheck = noDeviceCheck;
+
+	termios newSettings;
+
+	m_open = false;
+
+	// open file descriptor from serial device
+	m_fd = open(deviceName.c_str(), O_RDWR | O_NOCTTY);
+
+	if (m_fd < 0)
+		return;
+
+	// save current settings of serial device
+	tcgetattr(m_fd, &m_oldSettings);
+
+	memset(&newSettings, '\0', sizeof(newSettings));
+
+	newSettings.c_cflag |= (B2400 | CS8 | CLOCAL | CREAD);
+	newSettings.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
+	newSettings.c_iflag |= IGNPAR;
+	newSettings.c_oflag &= ~OPOST;
+
+	newSettings.c_cc[VMIN]  = 1;
+	newSettings.c_cc[VTIME] = 0;
+
+	// empty device buffer
+	tcflush(m_fd, TCIOFLUSH);
+
+	// activate new settings of serial device
+	tcsetattr(m_fd, TCSANOW, &newSettings);
+
+	// set serial device into blocking mode
+	fcntl(m_fd, F_SETFL, fcntl(m_fd, F_GETFL) & ~O_NONBLOCK);
+
+	m_open = true;
+
+}
+
+void DeviceSerial::closeDevice()
+{
+	if (m_open == true) {
+		// empty device buffer
+		tcflush(m_fd, TCIOFLUSH);
+
+		// activate old settings of serial device
+		tcsetattr(m_fd, TCSANOW, &m_oldSettings);
+
+		// close file descriptor from serial device
+		close(m_fd);
+
+		m_fd = -1;
+		m_open = false;
+	}
+}
+
+
+void DeviceNetwork::openDevice(const std::string deviceName, const bool noDeviceCheck)
+{
+	m_noDeviceCheck = noDeviceCheck;
+
+	struct sockaddr_in sock;
+	char* hostport;
+	int ret;
+
+	m_open = false;
+
+	memset((char*) &sock, 0, sizeof(sock));
+
+	hostport = strdup(deviceName.c_str());
+	char* host = strtok(hostport, ":");
+	char* port = strtok(NULL, ":");
+
+	if (inet_addr(host) == INADDR_NONE) {
+		struct hostent* he;
+
+		he = gethostbyname(host);
+		if (he == NULL)
+			return;
+
+		memcpy(&sock.sin_addr, he->h_addr_list[0], he->h_length);
+	} else {
+		ret = inet_aton(host, &sock.sin_addr);
+		if (ret == 0)
+			return;
+	}
+
+	sock.sin_family = AF_INET;
+	sock.sin_port = htons(strtol(port, NULL, 10));
+
+	m_fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (m_fd < 0)
+		return;
+
+	ret = connect(m_fd, (struct sockaddr*) &sock, sizeof(sock));
+	if (ret < 0)
+		return;
+
+	free(hostport);
+	m_open = true;
+}
+
+void DeviceNetwork::closeDevice()
+{
+	if (m_open == true) {
+		// close file descriptor from network device
+		close(m_fd);
+
+		m_fd = -1;
+		m_open = false;
+	}
+}
+
+
+Port::Port(const std::string deviceName, const bool noDeviceCheck)
+	: m_deviceName(deviceName), m_noDeviceCheck(noDeviceCheck)
+{
+	m_device = NULL;
+
+	if (strchr(deviceName.c_str(), '/') == NULL &&
+	    strchr(deviceName.c_str(), ':') != NULL)
+		setType(NETWORK);
+	else
+		setType(SERIAL);
+}
+
+void Port::setType(const DeviceType type)
+{
+	if (m_device != NULL)
+		delete m_device;
+
+	switch (type) {
+	case SERIAL:
+		m_device = new DeviceSerial();
+		break;
+	case NETWORK:
+		m_device = new DeviceNetwork();
+		break;
+	};
+};
+
+
+} //namespace
+
+
+

src/lib/ebus/port.h

@@ -0,0 +1,264 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_PORT_H_
+#define LIBEBUS_PORT_H_
+
+#include <string>
+#include <queue>
+#include <termios.h>
+#include <unistd.h>
+
+namespace libebus
+{
+
+/** available device types. */
+enum DeviceType { SERIAL, NETWORK };
+
+/** max size of receive buffer. */
+#define MAX_READ_SIZE 100
+
+
+/**
+ * @brief Base class for input devices.
+ */
+class Device
+{
+
+public:
+	/**
+	 * @brief Constructs a new instance.
+	 */
+	Device() : m_fd(-1), m_open(false), m_noDeviceCheck(false) {}
+
+	/**
+	 * @brief Destructor.
+	 */
+	virtual ~Device() {}
+
+	/**
+	 * @brief virtual open function for opening file descriptor
+	 * @param deviceName to determine device type.
+	 * @param noDeviceCheck en-/disable device check.
+	 */
+	virtual void openDevice(const std::string deviceName, const bool noDeviceCheck) = 0;
+
+	/**
+	 * @brief virtual close function for closing opened file descriptor
+	 */
+	virtual void closeDevice() = 0;
+
+	/**
+	 * @brief connection state of device.
+	 * @return true if device is open
+	 */
+	bool isOpen();
+
+	/**
+	 * @brief sendBytes write bytes into opened file descriptor.
+	 * @param buffer data to send.
+	 * @param nbytes number of bytes to send.
+	 * @return number of written bytes or -1 if an error has occured.
+	 */
+	ssize_t sendBytes(const unsigned char* buffer, size_t nbytes);
+
+	/**
+	 * @brief recvBytes read bytes from opened file descriptor.
+	 * @param timeout max time out for new input data.
+	 * @param maxCount max size of receive buffer.
+	 * @return number of read bytes or -1 if an error has occured.
+	 */
+	ssize_t recvBytes(const long timeout, size_t maxCount);
+
+	/**
+	 * @brief fetch first byte from receive buffer.
+	 * @return first byte (raw)
+	 */
+	unsigned char getByte();
+
+	/**
+	 * @brief get current size (bytes) of the receive buffer.
+	 * @return number of bytes in queued.
+	 */
+	ssize_t sizeRecvBuffer() const { return m_recvBuffer.size(); }
+
+protected:
+	/** if of file descriptor */
+	int m_fd;
+	/** state of device*/
+	bool m_open;
+	/** state of device check */
+	bool m_noDeviceCheck;
+	/** queue for received bytes */
+	std::queue<unsigned char> m_recvBuffer;
+	/** receive buffer */
+	unsigned char m_buffer[MAX_READ_SIZE];
+
+private:
+	/**
+	 * @brief system check if opened file descriptor is valid
+	 * @return true if file descriptor is valid
+	 */
+	bool isValid();
+
+};
+
+/**
+ * @brief Class for serial input device.
+ */
+class DeviceSerial : public Device
+{
+
+public:
+	/**
+	 * @brief Destructor.
+	 */
+	~DeviceSerial() { closeDevice(); }
+
+	/**
+	 * @brief open function for opening file descriptor
+	 * @param deviceName to determine device type.
+	 * @param noDeviceCheck en-/disable device check.
+	 */
+	void openDevice(const std::string deviceName, const bool noDeviceCheck);
+
+	/**
+	 * @brief close function for closing opened file descriptor
+	 */
+	void closeDevice();
+
+private:
+	/** save settings from serial device */
+	termios m_oldSettings;
+
+};
+
+/**
+ * @brief Class for network input device.
+ */
+class DeviceNetwork : public Device
+{
+
+public:
+	/**
+	 * @brief Destructor.
+	 */
+	~DeviceNetwork() { closeDevice(); }
+
+	/**
+	 * @brief open function for opening file descriptor
+	 * @param deviceName to determine device type.
+	 * @param noDeviceCheck en-/disable device check.
+	 */
+	void openDevice(const std::string deviceName, const bool noDeviceCheck);
+
+	/**
+	 * @brief close opened file descriptor
+	 */
+	void closeDevice();
+
+private:
+
+};
+
+/**
+ * @brief Wrapper class for class Device.
+ */
+class Port
+{
+
+public:
+	/**
+	 * @brief Constructs a new instance and determine device type.
+	 * @param deviceName to determine device type.
+	 * @param noDeviceCheck en-/disable device check.
+	 */
+	Port(const std::string deviceName, const bool noDeviceCheck);
+
+	/**
+	 * @brief Destructor.
+	 */
+	~Port() { delete m_device; }
+
+	/**
+	 * @brief open device
+	 */
+	void open() { m_device->openDevice(m_deviceName, m_noDeviceCheck); }
+
+	/**
+	 * @brief close device
+	 */
+	void close() { m_device->closeDevice(); }
+
+	/**
+	 * @brief connection state of device.
+	 * @return true if device is open
+	 */
+	bool isOpen() { return m_device->isOpen(); }
+
+	/**
+	 * @brief send write bytes into opened file descriptor.
+	 * @param buffer data to send.
+	 * @param nbytes number of bytes to send.
+	 * @return number of written bytes or -1 if an error has occured.
+	 */
+	ssize_t send(const unsigned char* buffer, size_t nbytes)
+		{ return m_device->sendBytes(buffer, nbytes); }
+
+	/**
+	 * @brief recv read bytes from opened file descriptor.
+	 * @param timeout max time out for new input data.
+	 * @param maxCount max size of receive buffer.
+	 * @return number of read bytes or -1 if an error has occured.
+	 */
+	ssize_t recv(const long timeout, size_t maxCount = MAX_READ_SIZE)
+		{ return m_device->recvBytes(timeout, maxCount); }
+
+	/**
+	 * @brief fetch first byte from receive buffer.
+	 * @return first byte (raw)
+	 */
+	unsigned char byte() { return m_device->getByte(); }
+
+	/**
+	 * @brief get current size (bytes) of the receive buffer.
+	 * @return number of bytes in queued.
+	 */
+	ssize_t size() const { return m_device->sizeRecvBuffer(); }
+
+private:
+	/** the device name */
+	std::string m_deviceName;
+	/** the device instance */
+	Device* m_device;
+	/** true if device check is disabled */
+	bool m_noDeviceCheck;
+
+	/**
+	 * @brief internal setter for device type.
+	 * @param type of device
+	 */
+	void setType(const DeviceType type);
+
+};
+
+
+} //namespace
+
+#endif // LIBEBUS_PORT_H_

src/lib/ebus/result.cpp

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) John Baier 2014 <ebusd@johnm.de>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "result.h"
+
+namespace libebus
+{
+
+const char* getResultCodeCStr(int resultCode) {
+	switch (resultCode) {
+		case RESULT_ERR_SEND: return "ERR_SEND: send error";
+		case RESULT_ERR_EXTRA_DATA: return "ERR_EXTRA_DATA: received bytes > sent bytes";
+		case RESULT_ERR_NAK: return "ERR_NAK: NAK received";
+		case RESULT_ERR_CRC: return "ERR_CRC: CRC error";
+		case RESULT_ERR_ACK: return "ERR_ACK: ACK error";
+		case RESULT_ERR_TIMEOUT: return "ERR_TIMEOUT: read timeout";
+		case RESULT_ERR_SYN: return "ERR_SYN: SYN received";
+		case RESULT_ERR_BUS_LOST: return "ERR_BUS_LOST: lost bus arbitration";
+		case RESULT_ERR_ESC: return "ERR_ESC: invalid escape sequence received";
+		case RESULT_ERR_INVALID_ARG: return "ERR_INVALID_ARG: invalid argument specified";
+		case RESULT_ERR_DEVICE: return "ERR_DEVICE: generic device error";
+		default: return "success";
+	}
+}
+
+
+} //namespace

src/lib/ebus/result.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) John Baier 2014 <ebusd@johnm.de>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_RESULT_H_
+#define LIBEBUS_RESULT_H_
+
+namespace libebus
+{
+
+
+static const int RESULT_OK = 0;
+
+static const int RESULT_BUS_ACQUIRED = 1;      // bus successfully acquired
+static const int RESULT_DATA = 2;              // some data received
+static const int RESULT_SYN = 3;               // regular SYN after message received
+static const int RESULT_BUS_LOCKED = 4;        // bus is locked for access
+static const int RESULT_BUS_PRIOR_RETRY = 5;   // retry to access bus
+static const int RESULT_IN_ESC = 6;            // start of escape sequence received
+
+static const int RESULT_ERR_SEND = -1;         // send error
+static const int RESULT_ERR_EXTRA_DATA = -2;   // received bytes > sent bytes
+static const int RESULT_ERR_NAK = -3;          // NAK received
+static const int RESULT_ERR_CRC = -4;          // CRC error
+static const int RESULT_ERR_ACK = -5;          // ACK error
+static const int RESULT_ERR_TIMEOUT = -6;      // read timeout
+static const int RESULT_ERR_SYN = -7;          // SYN received
+static const int RESULT_ERR_BUS_LOST = -8;     // arbitration lost
+static const int RESULT_ERR_ESC = -9;          // invalid escape sequence received
+static const int RESULT_ERR_INVALID_ARG = -10; // invalid argument
+static const int RESULT_ERR_DEVICE = -11;      // generic device error (usually fatal)
+
+
+/**
+ * @brief Return the string corresponding to the result code.
+ * @param resultCode the result code (see RESULT_ constants).
+ * @return the string corresponding to the result code.
+ */
+const char* getResultCodeCStr(int resultCode);
+
+
+} //namespace
+
+#endif // LIBEBUS_RESULT_H_

src/lib/ebus/symbol.cpp

@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) John Baier 2014 <ebusd@johnm.de>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "symbol.h"
+#include "result.h"
+#include <iostream>
+#include <iomanip>
+
+namespace libebus
+{
+
+/**
+ * @brief CRC8 lookup table for the polynom 0x9b = x^8 + x^7 + x^4 + x^3 + x^1 + 1.
+ */
+static const unsigned char CRC_LOOKUP_TABLE[] =
+{
+	0x00, 0x9b, 0xad, 0x36, 0xc1, 0x5a, 0x6c, 0xf7, 0x19, 0x82, 0xb4, 0x2f, 0xd8, 0x43, 0x75, 0xee,
+	0x32, 0xa9, 0x9f, 0x04, 0xf3, 0x68, 0x5e, 0xc5, 0x2b, 0xb0, 0x86, 0x1d, 0xea, 0x71, 0x47, 0xdc,
+	0x64, 0xff, 0xc9, 0x52, 0xa5, 0x3e, 0x08, 0x93, 0x7d, 0xe6, 0xd0, 0x4b, 0xbc, 0x27, 0x11, 0x8a,
+	0x56, 0xcd, 0xfb, 0x60, 0x97, 0x0c, 0x3a, 0xa1, 0x4f, 0xd4, 0xe2, 0x79, 0x8e, 0x15, 0x23, 0xb8,
+	0xc8, 0x53, 0x65, 0xfe, 0x09, 0x92, 0xa4, 0x3f, 0xd1, 0x4a, 0x7c, 0xe7, 0x10, 0x8b, 0xbd, 0x26,
+	0xfa, 0x61, 0x57, 0xcc, 0x3b, 0xa0, 0x96, 0x0d, 0xe3, 0x78, 0x4e, 0xd5, 0x22, 0xb9, 0x8f, 0x14,
+	0xac, 0x37, 0x01, 0x9a, 0x6d, 0xf6, 0xc0, 0x5b, 0xb5, 0x2e, 0x18, 0x83, 0x74, 0xef, 0xd9, 0x42,
+	0x9e, 0x05, 0x33, 0xa8, 0x5f, 0xc4, 0xf2, 0x69, 0x87, 0x1c, 0x2a, 0xb1, 0x46, 0xdd, 0xeb, 0x70,
+	0x0b, 0x90, 0xa6, 0x3d, 0xca, 0x51, 0x67, 0xfc, 0x12, 0x89, 0xbf, 0x24, 0xd3, 0x48, 0x7e, 0xe5,
+	0x39, 0xa2, 0x94, 0x0f, 0xf8, 0x63, 0x55, 0xce, 0x20, 0xbb, 0x8d, 0x16, 0xe1, 0x7a, 0x4c, 0xd7,
+	0x6f, 0xf4, 0xc2, 0x59, 0xae, 0x35, 0x03, 0x98, 0x76, 0xed, 0xdb, 0x40, 0xb7, 0x2c, 0x1a, 0x81,
+	0x5d, 0xc6, 0xf0, 0x6b, 0x9c, 0x07, 0x31, 0xaa, 0x44, 0xdf, 0xe9, 0x72, 0x85, 0x1e, 0x28, 0xb3,
+	0xc3, 0x58, 0x6e, 0xf5, 0x02, 0x99, 0xaf, 0x34, 0xda, 0x41, 0x77, 0xec, 0x1b, 0x80, 0xb6, 0x2d,
+	0xf1, 0x6a, 0x5c, 0xc7, 0x30, 0xab, 0x9d, 0x06, 0xe8, 0x73, 0x45, 0xde, 0x29, 0xb2, 0x84, 0x1f,
+	0xa7, 0x3c, 0x0a, 0x91, 0x66, 0xfd, 0xcb, 0x50, 0xbe, 0x25, 0x13, 0x88, 0x7f, 0xe4, 0xd2, 0x49,
+	0x95, 0x0e, 0x38, 0xa3, 0x54, 0xcf, 0xf9, 0x62, 0x8c, 0x17, 0x21, 0xba, 0x4d, 0xd6, 0xe0, 0x7b,
+};
+
+
+SymbolString::SymbolString(const std::string str)
+	: m_unescapeState(0), m_crc(0)
+{
+	// parse + escape
+	for (size_t i = 0; i+1 < str.size(); i += 2) {
+		unsigned long value = strtoul(str.substr(i, 2).c_str(), NULL, 16); // TODO check
+		push_back((unsigned char)value, false, true);
+	}
+	// add CRC + escape
+	push_back(m_crc, false, false);
+}
+
+SymbolString::SymbolString(const std::string str, bool isEscaped)
+	: m_unescapeState(1), m_crc(0)
+{
+	// parse + optionally unescape
+	for (size_t i = 0; i+1 < str.size(); i += 2) {
+		unsigned long value = strtoul(str.substr(i, 2).c_str(), NULL, 16); // TODO check
+		push_back((unsigned char)value, isEscaped, false);
+	}
+}
+
+const std::string SymbolString::getDataStr(const bool unescape)
+{
+	std::stringstream sstr;
+	bool previousEscape = false;
+
+	for (size_t i = 0; i < m_data.size(); i++) {
+		unsigned char value = m_data[i];
+		if (m_unescapeState == 0 && unescape == true && previousEscape == true) {
+			if (value == 0x00)
+				sstr << "a9"; // ESC
+			else if (value == 0x01)
+				sstr << "aa"; // SYN
+			else
+				sstr << "XX"; // invalid escape sequence
+
+			previousEscape = false;
+		}
+		else if (m_unescapeState == 0 && unescape == true && value == ESC) {
+			previousEscape = true; // escape sequence not yet finished
+		}
+		else {
+			sstr << std::nouppercase << std::setw(2) << std::hex
+				 << std::setfill('0') << static_cast<unsigned>(value);
+		}
+	}
+
+	return sstr.str();
+}
+
+int SymbolString::push_back(const unsigned char value, const bool isEscaped, const bool updateCRC)
+{
+	if (m_unescapeState == 0) { // store escaped data
+		if (isEscaped == false && value == ESC) {
+			m_data.push_back(ESC);
+			m_data.push_back(0x00);
+			if (updateCRC) {
+				addCRC(ESC);
+				addCRC(0x00);
+			}
+		}
+		else if (isEscaped == false && value == SYN) {
+			m_data.push_back(ESC);
+			m_data.push_back(0x01);
+			if (updateCRC) {
+				addCRC(ESC);
+				addCRC(0x01);
+			}
+		}
+		else {
+			m_data.push_back(value);
+			if (updateCRC)
+				addCRC(value);
+
+		}
+		return RESULT_OK;
+	}
+	else if (isEscaped == false) {
+		if (m_unescapeState != 1)
+			return RESULT_ERR_ESC; // invalid unescape state
+		m_data.push_back(value);
+		if (updateCRC) {
+			if (value == ESC) {
+				addCRC(ESC);
+				addCRC(0x00);
+			}
+			else if (value == SYN) {
+				addCRC(ESC);
+				addCRC(0x01);
+			}
+			else {
+				addCRC(value);
+			}
+		}
+		return RESULT_OK;
+	}
+	else if (m_unescapeState != 1) {
+		if (updateCRC)
+			addCRC(value);
+
+		if (value == 0x00) {
+			m_data.push_back(ESC);
+			m_unescapeState = 1;
+			return RESULT_OK;
+		}
+		if (value == 0x01) {
+			m_data.push_back(SYN);
+			m_unescapeState = 1;
+			return RESULT_OK;
+		}
+		return RESULT_ERR_ESC; // invalid escape sequence
+	}
+	else if (value == ESC) {
+		if (updateCRC)
+			addCRC(value);
+
+		m_unescapeState = 2;
+		return RESULT_IN_ESC;
+	}
+	if (updateCRC)
+		addCRC(value);
+
+	m_data.push_back(value);
+	return RESULT_OK;
+}
+
+void SymbolString::addCRC(const unsigned char value) {
+	m_crc = CRC_LOOKUP_TABLE[m_crc]^value;
+}
+
+
+
+bool isMaster(unsigned char addr) {
+	unsigned char addrHi = (addr & 0xF0) >> 4;
+	unsigned char addrLo = (addr & 0x0F);
+
+	return ((addrHi == 0x0) || (addrHi == 0x1) || (addrHi == 0x3) || (addrHi == 0x7) || (addrHi == 0xF))
+	    && ((addrLo == 0x0) || (addrLo == 0x1) || (addrLo == 0x3) || (addrLo == 0x7) || (addrLo == 0xF));
+}
+
+} //namespace

src/lib/ebus/symbol.h

@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) John Baier 2014 <ebusd@johnm.de>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBEBUS_SYMBOL_H_
+#define LIBEBUS_SYMBOL_H_
+
+#include <cstring>
+#include <cstdlib>
+#include <sstream>
+#include <queue>
+
+namespace libebus
+{
+
+
+static const unsigned char ESC = 0xA9;       // escape symbol, either followed by 0x00 for the value 0xA9, or 0x01 for the value 0xAA
+static const unsigned char SYN = 0xAA;       // synchronization symbol
+static const unsigned char ACK = 0x00;       // positive acknowledge
+static const unsigned char NAK = 0xFF;       // negative acknowledge
+static const unsigned char BROADCAST = 0xFE; // the broadcast destination address
+
+
+/**
+ * @brief A string of escaped or unescaped bus symbols.
+ */
+class SymbolString
+{
+
+public:
+	/**
+	 * @brief Creates a new unescaped empty instance.
+	 * @param escaped whether to create an escaped instance.
+	 */
+	SymbolString() : m_unescapeState(1), m_crc(0) {}
+	/**
+	 * @brief Creates a new escaped instance from an unescaped hex string and adds the calculated CRC.
+	 * @param str the unescaped hex string.
+	 */
+	SymbolString(const std::string str);
+	/**
+	 * @brief Creates a new unescaped instance from a hex string.
+	 * @param isEscaped whether the hex string is escaped and shall be unescaped.
+	 * @param str the hex string.
+	 */
+	SymbolString(const std::string str, const bool isEscaped);
+	/**
+	 * @brief Returns the symbols as hex string.
+	 * @param unescape whether to unescape an escaped instance.
+	 * @return the symbols as hex string.
+	 */
+	const std::string getDataStr(const bool unescape=true);
+	/**
+	 * @brief Returns a reference to the symbol at the specified index.
+	 * @param index the index of the symbol to return.
+	 * @return the reference to the symbol at the specified index.
+	 */
+	unsigned char& operator[](const size_t index) { if (index >= m_data.size()) m_data.resize(index+1, 0); return m_data[index]; }
+	/**
+	 * @brief Returns the symbol at the specified index.
+	 * @param index the index of the symbol to return.
+	 * @return the symbol at the specified index.
+	 */
+	const unsigned char& operator[](const size_t index) const { return m_data[index]; }
+	/**
+	 * @brief Returns whether this instance is equal to the other instance.
+	 * @param other the other instance.
+	 * @return true if this instance is equal to the other instance (i.e. both escaped or both unescaped and same symbols).
+	 */
+	bool operator==(SymbolString other) { return (m_unescapeState==0)==(other.m_unescapeState==0) && m_data==other.m_data; }
+	/**
+	 * @brief Appends a the symbol to the end of the symbol string and escapes/unescapes it if necessary.
+	 * @param value the symbol to append.
+	 * @param isEscaped whether the symbol is escaped.
+	 * @param updateCrc whether to update the calculated CRC in @a m_crc.
+	 * @return RESULT_OK if another symbol was appended,
+	 * RESULT_IN_ESC if this is an unescaped instance and the symbol is escaped and the start of the escape sequence was received,
+	 * RESULT_ERR_ESC if this is an unescaped instance and an invalid escaped sequence was detected.
+	 */
+	int push_back(const unsigned char value, const bool isEscaped, const bool updateCRC=true);
+	/**
+	 * @brief Returns the number of symbols in this symbol string.
+	 * @return the number of available symbols.
+	 */
+	size_t size() const { return m_data.size(); }
+	/**
+	 * @brief Returns the calculated CRC.
+	 * @return the calculated CRC.
+	 */
+	unsigned char getCRC() const { return m_crc; }
+	/**
+	 * @brief Clears the symbols.
+	 */
+	void clear() { m_data.clear(); m_unescapeState = m_unescapeState==0 ? 0 : 1; m_crc = 0; }
+
+private:
+	/**
+	 * @brief Updates the calculated CRC in @a m_crc by adding a value.
+	 * @param value the (escaped) value to add to the calculated CRC in @a m_crc.
+	 */
+	void addCRC(const unsigned char value);
+
+	/**
+	 * @brief the string of bus symbols.
+	 */
+	std::vector<unsigned char> m_data;
+	/**
+	 * @brief 0 if the symbols in @a m_data are escaped,
+	 * 1 if the symbols in @a m_data are unescaped and the last symbol passed to @a push_back was a normal symbol,
+	 * 2 if the symbols in @a m_data are unescaped and the last symbol passed to @a push_back was the escape symbol.
+	 */
+	int m_unescapeState;
+	/**
+	 * @brief the calculated CRC.
+	 */
+	unsigned char m_crc;
+};
+
+
+/**
+ * Returns whether the address is one of the 25 master addresses.
+ * @param addr the address to check.
+ * @return <code>true</code> if the specified address is a master address.
+ */
+bool isMaster(unsigned char addr);
+
+
+} //namespace
+
+#endif // LIBEBUS_SYMBOL_H_

src/lib/ebus/test/Makefile.am

@@ -0,0 +1,41 @@
+AM_CXXFLAGS = -fpic \
+	      -Wall \
+	      -Wextra \
+	      -I$(top_srcdir)/src/lib/ebus
+
+noinst_PROGRAMS = test_port \
+		  test_symbol \
+		  test_data \
+		  test_bus \
+		  test_commands \
+		  test_configfile \
+		  test_decode \
+		  test_encode
+
+test_port_SOURCES = test_port.cpp
+test_port_LDADD = $(top_srcdir)/src/lib/ebus/libebus.a
+
+test_symbol_SOURCES = test_symbol.cpp
+test_symbol_LDADD = $(top_srcdir)/src/lib/ebus/libebus.a
+
+test_data_SOURCES = test_data.cpp
+test_data_LDADD = $(top_srcdir)/src/lib/ebus/libebus.a
+
+test_bus_SOURCES = test_bus.cpp
+test_bus_LDADD = $(top_srcdir)/src/lib/ebus/libebus.a
+
+test_commands_SOURCES = test_commands.cpp
+test_commands_LDADD = $(top_srcdir)/src/lib/ebus/libebus.a
+
+test_configfile_SOURCES = test_configfile.cpp
+test_configfile_LDADD = $(top_srcdir)/src/lib/ebus/libebus.a
+
+test_decode_SOURCES = test_decode.cpp
+test_decode_LDADD = $(top_srcdir)/src/lib/ebus/libebus.a
+
+test_encode_SOURCES = test_encode.cpp
+test_encode_LDADD = $(top_srcdir)/src/lib/ebus/libebus.a
+
+distclean-local:
+	-rm -f Makefile.in
+	-rm -rf .libs

src/lib/ebus/test/command.csv

@@ -0,0 +1,4 @@
+# type;class;cmd;comment;QQ;ZZ;PBSB;NN;D1D2D3;elements;sub;part;position;datatype;factor;unit;valid;comment;sub;part;position;datatype;factor;unit;valid;comment;sub;part;position;datatype;factor;unit;valid;comment;sub;part;position;datatype;factor;unit;valid;comment
+c;broad;date_time_temp;Datum, Uhrzeit und Aussentempertur;;FE;0700;9;-;4;temp;md;1,2;d2b;1.0;°C;-;Temperatur;day;md;8;bdy;-;-;-;Wochentag;date;md;6,7,9;bda;-;-;-;Datum;time;md;5,4,3;bti;-;-;-;Uhrzeit
+g;ci;Password;Kennwort;;15;B509;3;0D2C00;4;pin1;sd;1;uch;-;-;-;Pin 1;pin2;sd;2;uch;-;-;-;Pin 2;pin3;sd;3;uch;-;-;-;Pin 3;pin4;sd;4;uch;-;-;-;Pin 4
+s;vwxmk;DesiredTemp;Solltemperatur;;50;B509;4;0E3200;1;-;sd;1;d1c;1.0;°C;-;-;;;;;;;;;;;;;;;;;;;;;;;;

src/lib/ebus/test/test_bus.cpp

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "bus.h"
+#include <iostream>
+#include <iomanip>
+
+using namespace libebus;
+
+int main ()
+{
+	Bus bus("/dev/ttyUSB0", true, 15000, "/tmp/dump_bus.bin", 100, false);
+
+	bus.connect();
+
+	if (bus.isConnected() == true)
+		std::cout << "connect successful." << std::endl;
+
+	int cout = 0;
+
+	while (cout++ < 1000) {
+		if (bus.isConnected() == true) {
+			bus.printBytes();
+		} else {
+			sleep(5);
+			bus.connect();
+
+			if (bus.isConnected() == false)
+				std::cout << "can't open /dev/ttyUSB0" << std::endl;
+			else
+				std::cout << "reconnect successful." << std::endl;
+		}
+	}
+
+	bus.disconnect();
+
+	if (bus.isConnected() == false)
+		std::cout << "disconnect successful." << std::endl;
+
+	return 0;
+
+}

src/lib/ebus/test/test_commands.cpp

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "configfile.h"
+#include "commands.h"
+#include <iostream>
+#include <string>
+#include <fstream>
+#include <sstream>
+#include <vector>
+
+using namespace libebus;
+
+// will be part of cfg csv class
+void readCSV(std::istream& is, Commands& commands){
+	std::string line;
+
+	// read lines
+	while (std::getline(is, line) != 0) {
+		std::vector<std::string> row;
+		std::string column;
+		int count;
+
+		count = 0;
+
+		std::istringstream stream(line);
+
+		// walk through columns
+		while (std::getline(stream, column, ';') != 0) {
+			row.push_back(column);
+			count++;
+		}
+
+		commands.addCommand(row);
+	}
+}
+
+int main()
+{
+	Commands* commands = ConfigCommands("test", CSV).getCommands();
+	std::cout << "Commands: " << commands->sizeCmdDB() << std::endl;
+
+	//~ std::string data("g ci password pin1");
+	std::string data("s vwxmk DesiredTemp");
+
+	int index = commands->findCommand(data);
+	std::cout << "found at index: " << index << std::endl;
+
+	// prepare data
+	std::string token;
+	std::istringstream stream(data);
+	std::vector<std::string> cmd;
+
+	// split stream
+	while (std::getline(stream, token, ' ') != 0)
+		cmd.push_back(token);
+
+	//~ Command* command = new Command(index, (*commands)[index], "ff15b509030d2c0035000401000000cf00");
+	Command* command = new Command(index, (*commands)[index], "19.0");
+
+	//~ std::string result = command->calcResult(cmd);
+	std::string result = command->calcData();
+	std::cout << "result: " << result << std::endl;
+
+	delete command;
+
+	return 0;
+}
+
+

src/lib/ebus/test/test_configfile.cpp

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "configfile.h"
+#include <iostream>
+#include <string>
+#include <fstream>
+#include <sstream>
+#include <vector>
+
+using namespace libebus;
+
+
+int main() {
+
+	std::string dir("test");
+	ConfigCommands config(dir, CSV);
+
+	Commands* commands = config.getCommands();
+
+	std::cout << "size: " << commands->sizeCmdDB() << std::endl;
+
+	commands->findCommand("g ci Password");
+
+	std::cout << (*commands)[0][0] << std::endl;
+
+	delete commands;
+
+	return 0;
+}
+
+

src/lib/ebus/test/test_data.cpp

@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) John Baier 2014 <ebusd@johnm.de>
+ *
+ * This file is part of libebus.
+ *
+ * libebus 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libebus 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 libebus. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "data.h"
+#include <iostream>
+#include <iomanip>
+
+using namespace libebus;
+
+int main ()
+{
+	std::string checks[][4] = {
+		//name;position(s);type;factor;unit;comment
+//		{"temp;1;d2b;;°C;Aussentemperatur","temp=18.004 °C [Aussentemperatur]","10fe070009019258042126100714cc", "00"},
+//		{"zeit;1;ttm;2;Uhr;","zeit=22:40 Uhr","10feffff0188", "00"},
+		{"x;1-10;hex","53 70 65 69 63 68 65 72 20 20", "10fe07000a53706569636865722020", "00"},
+		{"x;1;bti","21:04:58","10fe070009580421", "00"},
+		{"x;1;bda","26.10.2014","10fe07000926100714", "00"},
+		{"x;1-3;bda","26.10.2014","10fe070003261014", "00"},
+		{"x;1;hdy","Sun","10fe07000307", "00"},
+		{"x;1;bdy","Sun","10fe07000306", "00"},
+		{"x;1;d2b","18.004","10fe0700090112", "00"},
+		{"x;1;d2c","288.062","10fe0700090112", "00"},
+		{"x;1;ttm","22:40","10feffff0188", "00"},
+		{"x;1;bcd","26","10feffff0126", "00"},
+		{"x;1;bcd","-","10feffff01ff", "00"},
+		{"x;1;uch","38","10feffff0126", "00"},
+		{"x;1;sch","-90","10feffff01a6", "00"},
+		{"x;1;d1b","-90","10feffff01a6", "00"},
+		{"x;1;d1c","19.500","10feffff0127", "00"},
+		{"x;1;uin","38","10feffff022600", "00"},
+		{"x;1;sin","-90","10feffff02a6ff", "00"},
+		{"x;1;ulg","38","10feffff0426000000", "00"},
+		{"x;1;slg","-90","10feffff04a6ffffff", "00"},
+		{"x;1;flt","-0.090","10feffff02a6ff", "00"},
+		{"x;1-9;str","hallo Du!","10feffff0868616c6c6f20447521", "00"},
+		{"x;1-9;str","hallo Du ","10feffff0868616c6c6f20447520", "00"},
+		{"new;1;uch;1=test,2=high,3=off,4=on","on","10feffff0104", "00"},
+	};
+	for (size_t i = 0; i < sizeof(checks)/sizeof(checks[0]); i++) {
+		std::istringstream isstr(checks[i][0]);
+		std::string expectStr = checks[i][1];
+		SymbolString mstr = SymbolString(checks[i][2], false);
+		SymbolString sstr = SymbolString(checks[i][3], false);
+		std::string item;
+		std::vector<std::string> entries;
+
+		while (std::getline(isstr, item, ';') != 0)
+			entries.push_back(item);
+
+		std::vector<std::string>::iterator it = entries.begin();
+		DataField* field = DataField::create(mstr[1], false, it, entries.end());
+
+		if (field == NULL) {
+			std::cout << "create \"" << checks[i][0] << "\" invalid: null" << std::endl;
+			return 1;
+		}
+		std::cout << "create \"" << checks[i][0] << "\" successful" << std::endl;
+
+
+		std::string gotStr = field->read(mstr, sstr);
+
+		if (strcasecmp(gotStr.c_str(), expectStr.c_str()) == 0)
+			std::cout << "read successful: " << gotStr << std::endl;
+		else
+			std::cout << "read invalid: got " << gotStr
+				<< ", expected " << expectStr << std::endl;
+
+		SymbolString writeMstr = SymbolString(mstr.getDataStr().substr(0, 10), false);
+		SymbolString writeSstr = SymbolString(sstr.getDataStr().substr(0, 2), false);
+		if (field->write(gotStr, writeMstr, writeSstr) == false)
+			std::cout << "write failed" << std::endl;
+		else {
+			if (mstr == writeMstr && sstr == writeSstr)
+				std::cout << "write successful" << std::endl;
+			else {
+				std::cout << "write invalid: ";
+				if (mstr == writeMstr)
+					std::cout << "master OK";
+				else
+					std::cout << "master got " << writeMstr.getDataStr() << ", expected " << mstr.getDataStr();
+
+				if (sstr == writeSstr)
+					std::cout << ", slave OK";
+				else
+					std::cout << ", slave got " << writeSstr.getDataStr() << ", expected " << sstr.getDataStr();
+				std::cout << std::endl;
+			}
+		}
+		delete field;
+	}
+	return 0;
+
+}

src/lib/ebus/test/test_decode.cpp

@@ -0,0 +1,310 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "decode.h"
+#include <iostream>
+#include <iomanip>
+
+
+using namespace libebus;
+
+
+int main()
+{
+	Decode* help_dec = NULL;
+
+	std::cout << std::endl;
+
+	// HEX
+	{
+		const char* hex[] = {"53706569636865722020"};
+		for (size_t i = 0; i < sizeof(hex)/sizeof(hex[0]); i++) {
+			help_dec = new DecodeHEX(hex[i]);
+			std::cout << "DecodeHEX: " << std::setw(20) << hex[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// UCH
+	{
+		const char* uch[] = {"00", "01", "7f", "80", "fe", "ff", "a1"};
+		for (size_t i = 0; i < sizeof(uch)/sizeof(uch[0]); i++) {
+			help_dec = new DecodeUCH(uch[i], "1.0");
+			std::cout << "DecodeUCH: " << std::setw(20) << uch[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// SCH
+	{
+		const char* sch[] = {"00", "01", "7f", "80", "fe", "ff", "a1"};
+		for (size_t i = 0; i < sizeof(sch)/sizeof(sch[0]); i++) {
+			help_dec = new DecodeSCH(sch[i], "1.0");
+			std::cout << "DecodeSCH: " << std::setw(20) << sch[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// UIN
+	{
+		const char* uin[] = {"0000", "0001", "7fff", "8000", "fffe", "ffff", "a1b2"};
+		for (size_t i = 0; i < sizeof(uin)/sizeof(uin[0]); i++) {
+			help_dec = new DecodeUIN(uin[i], "1.0");
+			std::cout << "DecodeUIN: " << std::setw(20) << uin[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// SIN
+	{
+		const char* sin[] = {"0000", "0001", "7fff", "8000", "fffe", "ffff", "a1b2"};
+		for (size_t i = 0; i < sizeof(sin)/sizeof(sin[0]); i++) {
+			help_dec = new DecodeSIN(sin[i], "1.0");
+			std::cout << "DecodeSIN: " << std::setw(20) << sin[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// ULG
+	{
+		const char* ulg[] = {"00000000", "00000001", "7fffffff", "80000000", "fffffffe", "ffffffff", "a1b2c3d4"};
+		for (size_t i = 0; i < sizeof(ulg)/sizeof(ulg[0]); i++) {
+			help_dec = new DecodeULG(ulg[i], "1.0");
+			std::cout << "DecodeULG: " << std::setw(20) << ulg[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// SLG
+	{
+		const char* slg[] = {"00000000", "00000001", "7fffffff", "80000000", "fffffffe", "ffffffff", "a1b2c3d4"};
+		for (size_t i = 0; i < sizeof(slg)/sizeof(slg[0]); i++) {
+			help_dec = new DecodeSLG(slg[i], "1.0");
+			std::cout << "DecodeSLG: " << std::setw(20) << slg[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// FLT
+	{
+		const char* flt[] = {"0000", "081b", "2532", "2689", "0851"};
+		for (size_t i = 0; i < sizeof(flt)/sizeof(flt[0]); i++) {
+			help_dec = new DecodeFLT(flt[i], "1.0");
+			std::cout << "DecodeFLT: " << std::setw(20) << flt[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// STR
+	{
+		const char* str[] = {"53706569636865722020", "5644363030" };
+		for (size_t i = 0; i < sizeof(str)/sizeof(str[0]); i++) {
+			help_dec = new DecodeSTR(str[i]);
+			std::cout << "DecodeSTR: " << std::setw(20) << str[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// BCD
+	{
+		const char* bcd[] = {"00", "01", "02", "03", "12", "99"};
+		for (size_t i = 0; i < sizeof(bcd)/sizeof(bcd[0]); i++) {
+			help_dec = new DecodeBCD(bcd[i], "1.0");
+			std::cout << "DecodeBCD: " << std::setw(20) << bcd[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// D1B
+	{
+		const char* d1b[] = {"00", "01", "7f", "81", "80"};
+		for (size_t i = 0; i < sizeof(d1b)/sizeof(d1b[0]); i++) {
+			help_dec = new DecodeD1B(d1b[i], "1.0");
+			std::cout << "DecodeD1B: " << std::setw(20) << d1b[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// D1C
+	{
+		const char* d1c[] = {"00", "64", "c8"};
+		for (size_t i = 0; i < sizeof(d1c)/sizeof(d1c[0]); i++) {
+			help_dec = new DecodeD1C(d1c[i], "1.0");
+			std::cout << "DecodeD1C: " << std::setw(20) << d1c[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// D2B
+	{
+		const char* d2b[] = {"0000", "0100", "ffff", "00ff", "0080", "0180", "ff7f"};
+		for (size_t i = 0; i < sizeof(d2b)/sizeof(d2b[0]); i++) {
+			help_dec = new DecodeD2B(d2b[i], "1.0");
+			std::cout << "DecodeD2B: " << std::setw(20) << d2b[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// D2C
+	{
+		const char* d2c[] = {"0000", "0100", "ffff", "f0ff", "0080", "0180", "ff7f"};
+		for (size_t i = 0; i < sizeof(d2c)/sizeof(d2c[0]); i++) {
+			help_dec = new DecodeD2C(d2c[i], "1.0");
+			std::cout << "DecodeD2C: " << std::setw(20) << d2c[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// BDA
+	{
+		const char* bda[] = {"171113", "220901"};
+		for (size_t i = 0; i < sizeof(bda)/sizeof(bda[0]); i++) {
+			help_dec = new DecodeBDA(bda[i]);
+			std::cout << "DecodeBDA: " << std::setw(20) << bda[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// HDA
+	{
+		const char* hda[] = {"010101", "1f0c1b"};
+		for (size_t i = 0; i < sizeof(hda)/sizeof(hda[0]); i++) {
+			help_dec = new DecodeHDA(hda[i]);
+			std::cout << "DecodeHDA: " << std::setw(20) << hda[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// BTI
+	{
+		const char* bti[] = {"010101", "174209", "235959"};
+		for (size_t i = 0; i < sizeof(bti)/sizeof(bti[0]); i++) {
+			help_dec = new DecodeBTI(bti[i]);
+			std::cout << "DecodeBTI: " << std::setw(20) << bti[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// HTI
+	{
+		const char* hti[] = {"010101", "112a09", "173b3b"};
+		for (size_t i = 0; i < sizeof(hti)/sizeof(hti[0]); i++) {
+			help_dec = new DecodeHTI(hti[i]);
+			std::cout << "DecodeHTI: " << std::setw(20) << hti[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// BDY
+	{
+		const char* bdy[] = {"01", "03", "06", "07"};
+		for (size_t i = 0; i < sizeof(bdy)/sizeof(bdy[0]); i++) {
+			help_dec = new DecodeBDY(bdy[i]);
+			std::cout << "DecodeBDY: " << std::setw(20) << bdy[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// HDY
+	{
+		const char* hdy[] = {"01", "03", "07", "08"};
+		for (size_t i = 0; i < sizeof(hdy)/sizeof(hdy[0]); i++) {
+			help_dec = new DecodeHDY(hdy[i]);
+			std::cout << "DecodeHDY: " << std::setw(20) << hdy[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// TTM
+	{
+		const char* ttm[] = {"00", "23", "4f", "90"};
+		for (size_t i = 0; i < sizeof(ttm)/sizeof(ttm[0]); i++) {
+			help_dec = new DecodeTTM(ttm[i]);
+			std::cout << "DecodeTTM: " << std::setw(20) << ttm[i] << " = " << help_dec->decode() << std::endl;
+
+			delete help_dec;
+		}
+
+		std::cout << std::endl;
+	}
+
+	return 0;
+}
+
+

src/lib/ebus/test/test_encode.cpp

@@ -0,0 +1,311 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "encode.h"
+#include <iostream>
+#include <iomanip>
+
+
+using namespace libebus;
+
+
+int main()
+{
+	Encode* help_enc = NULL;
+
+	std::cout << std::endl;
+
+	// HEX
+	{
+		const char* hex[] = {"53 70 65 69 63 68 65 72 20 20"};
+		for (size_t i = 0; i < sizeof(hex)/sizeof(hex[0]); i++) {
+			help_enc = new EncodeHEX(hex[i]);
+			std::cout << "EncodeHEX: " << std::setw(20) << hex[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// UCH
+	{
+		const char* uch[] = {"0", "1", "127", "128", "254", "255", "161"};
+		for (size_t i = 0; i < sizeof(uch)/sizeof(uch[0]); i++) {
+			help_enc = new EncodeUCH(uch[i], "1.0");
+			std::cout << "EncodeUCH: " << std::setw(20) << uch[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// SCH
+	{
+		const char* sch[] = {"0", "1", "127", "-128", "-2", "-1", "-95"};
+		for (size_t i = 0; i < sizeof(sch)/sizeof(sch[0]); i++) {
+			help_enc = new EncodeSCH(sch[i], "1.0");
+			std::cout << "EncodeSCH: " << std::setw(20) << sch[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// UIN
+	{
+		const char* uin[] = {"0", "1", "32767", "32768", "65534", "65535", "41394"};
+		for (size_t i = 0; i < sizeof(uin)/sizeof(uin[0]); i++) {
+			help_enc = new EncodeUIN(uin[i], "1.0");
+			std::cout << "EncodeUIN: " << std::setw(20) << uin[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// SIN
+	{
+		const char* sin[] = {"0", "1", "32767", "-32768", "-2", "-1", "-24142"};
+		for (size_t i = 0; i < sizeof(sin)/sizeof(sin[0]); i++) {
+			help_enc = new EncodeSIN(sin[i], "1.0");
+			std::cout << "EncodeSIN: " << std::setw(20) << sin[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// ULG
+	{
+		const char* ulg[] = {"0", "1", "2147483647", "2147483648", "4294967294", "4294967295", "2712847316"};
+		for (size_t i = 0; i < sizeof(ulg)/sizeof(ulg[0]); i++) {
+			help_enc = new EncodeULG(ulg[i], "1.0");
+			std::cout << "EncodeULG: " << std::setw(20) << ulg[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// SLG
+	{
+		const char* slg[] = {"0", "1", "2147483647", "-2147483648", "-2", "-1", "-1582119980"};
+		for (size_t i = 0; i < sizeof(slg)/sizeof(slg[0]); i++) {
+			help_enc = new EncodeSLG(slg[i], "1.0");
+			std::cout << "EncodeSLG: " << std::setw(20) << slg[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// FLT
+	{
+		const char* flt[] = {"0.000", "2.075", "9.522", "9.865", "2.129"};
+		for (size_t i = 0; i < sizeof(flt)/sizeof(flt[0]); i++) {
+			help_enc = new EncodeFLT(flt[i], "1.0");
+			std::cout << "EncodeFLT: " << std::setw(20) << flt[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// STR
+	{
+		const char* str[] = {"Speicher  ", "VD600" };
+		for (size_t i = 0; i < sizeof(str)/sizeof(str[0]); i++) {
+			help_enc = new EncodeSTR(str[i]);
+			std::cout << "EncodeSTR: " << std::setw(20) << str[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// BCD
+	{
+		const char* bcd[] = {"0", "1", "2", "3", "12", "99"};
+		for (size_t i = 0; i < sizeof(bcd)/sizeof(bcd[0]); i++) {
+			help_enc = new EncodeBCD(bcd[i], "1.0");
+			std::cout << "EncodeBCD: " << std::setw(20) << bcd[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// D1B
+	{
+		const char* d1b[] = {"00", "01", "127", "-127", "-128"};
+		for (size_t i = 0; i < sizeof(d1b)/sizeof(d1b[0]); i++) {
+			help_enc = new EncodeD1B(d1b[i], "1.0");
+			std::cout << "EncodeD1B: " << std::setw(20) << d1b[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// D1C
+	{
+		const char* d1c[] = {"0", "50", "100"};
+		for (size_t i = 0; i < sizeof(d1c)/sizeof(d1c[0]); i++) {
+			help_enc = new EncodeD1C(d1c[i], "1.0");
+			std::cout << "EncodeD1C: " << std::setw(20) << d1c[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// D2B
+	{
+		const char* d2b[] = {"0", "0.00390625", "-0.00390625", "-1", "-128", "-127.99609375", "127.99609375"};
+		for (size_t i = 0; i < sizeof(d2b)/sizeof(d2b[0]); i++) {
+			help_enc = new EncodeD2B(d2b[i], "1.0");
+			std::cout << "EncodeD2B: " << std::setw(20) << d2b[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// D2C
+	{
+		const char* d2c[] = {"0", "0.0625", "-0.0625", "-1", "-2048", "-2047.9375", "2047.9375"};
+		for (size_t i = 0; i < sizeof(d2c)/sizeof(d2c[0]); i++) {
+			help_enc = new EncodeD2C(d2c[i], "1.0");
+			std::cout << "EncodeD2C: " << std::setw(20) << d2c[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// BDA
+	{
+		const char* bda[] = {"17.11.2013", "22.09.2001"};
+		for (size_t i = 0; i < sizeof(bda)/sizeof(bda[0]); i++) {
+			help_enc = new EncodeBDA(bda[i]);
+			std::cout << "EncodeBDA: " << std::setw(20) << bda[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// HDA
+	{
+		const char* hda[] = {"01.01.2001", "31.12.2027"};
+		for (size_t i = 0; i < sizeof(hda)/sizeof(hda[0]); i++) {
+			help_enc = new EncodeHDA(hda[i]);
+			std::cout << "EncodeHDA: " << std::setw(20) << hda[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// BTI
+	{
+		const char* bti[] = {"01:01:01", "17:42:09", "23:59:59"};
+		for (size_t i = 0; i < sizeof(bti)/sizeof(bti[0]); i++) {
+			help_enc = new EncodeBTI(bti[i]);
+			std::cout << "EncodeBTI: " << std::setw(20) << bti[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// HTI
+	{
+		const char* hti[] = {"01:01:01", "17:42:09", "23:59:59"};
+		for (size_t i = 0; i < sizeof(hti)/sizeof(hti[0]); i++) {
+			help_enc = new EncodeHTI(hti[i]);
+			std::cout << "EncodeHTI: " << std::setw(20) << hti[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// BDY
+	{
+		const char* bdy[] = {"Tue", "Thu", "Sun", "Err"};
+		for (size_t i = 0; i < sizeof(bdy)/sizeof(bdy[0]); i++) {
+			help_enc = new EncodeBDY(bdy[i]);
+			std::cout << "EncodeBDY: " << std::setw(20) << bdy[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+
+	// HDY
+	{
+		const char* hdy[] = {"Mon", "Wed", "Sun", "Err"};
+		for (size_t i = 0; i < sizeof(hdy)/sizeof(hdy[0]); i++) {
+			help_enc = new EncodeHDY(hdy[i]);
+			std::cout << "EncodeHDY: " << std::setw(20) << hdy[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	// TTM
+	{
+		const char* ttm[] = {"00:00", "05:50", "13:10", "24:00"};
+		for (size_t i = 0; i < sizeof(ttm)/sizeof(ttm[0]); i++) {
+			help_enc = new EncodeTTM(ttm[i]);
+			std::cout << "EncodeTTM: " << std::setw(20) << ttm[i] << " = " << help_enc->encode() << std::endl;
+
+			delete help_enc;
+		}
+
+		std::cout << std::endl;
+	}
+
+	return 0;
+}
+
+

src/lib/ebus/test/test_port.cpp

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "port.h"
+#include <iostream>
+#include <iomanip>
+
+using namespace libebus;
+
+int main ()
+{
+	std::string dev("/dev/ttyUSB20");
+	Port port(dev, true);
+
+	port.open();
+
+	if(port.isOpen() == true)
+		std::cout << "openPort successful." << std::endl;
+
+	int count = 0;
+
+	while (1) {
+		ssize_t bytes_read;
+		unsigned char byte = 0;
+		bytes_read = port.recv(0);
+
+		for (int i = 0; i < bytes_read; i++)
+			byte = port.byte();
+			std::cout << std::hex << std::setw(2) << std::setfill('0')
+			<< static_cast<unsigned>(byte) << std::endl;
+
+		bytes_read = 0;
+
+		count++;
+	}
+
+	port.close();
+
+	if(port.isOpen() == false)
+		std::cout << "closePort successful." << std::endl;
+
+	return 0;
+
+}

src/lib/ebus/test/test_symbol.cpp

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) John Baier 2014 <ebusd@johnm.de>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include "symbol.h"
+#include <iostream>
+#include <iomanip>
+
+using namespace libebus;
+
+int main ()
+{
+	SymbolString sstr = SymbolString("10feb5050427a915aa");
+
+	std::string gotStr = sstr.getDataStr(false), expectStr = "10feb5050427a90015a90177";
+
+	if (strcasecmp(gotStr.c_str(), expectStr.c_str()) == 0)
+		std::cout << "ctor escaped successful." << std::endl;
+	else
+		std::cout << "ctor escaped invalid: got " << gotStr
+			<< ", expected " << expectStr << std::endl;
+
+	unsigned char gotCrc = sstr.getCRC(), expectCrc = 0x77;
+
+	if (gotCrc == expectCrc)
+		std::cout << "CRC successful." << std::endl;
+	else
+		std::cout << "CRC invalid: got 0x"
+			<< std::nouppercase << std::setw(2) << std::hex
+			<< std::setfill('0') << static_cast<unsigned>(gotCrc)
+			<< ", expected 0x"
+			<< std::nouppercase << std::setw(2) << std::hex
+			<< std::setfill('0') << static_cast<unsigned>(expectCrc)
+			<< std::endl;
+
+	gotStr = sstr.getDataStr(), expectStr = "10feb5050427a915aa77";
+
+	if (strcasecmp(gotStr.c_str(), expectStr.c_str()) == 0)
+		std::cout << "unescape successful." << std::endl;
+	else
+		std::cout << "unescape invalid: got " << gotStr
+			<< ", expected " << expectStr << std::endl;
+
+	sstr = SymbolString("10feb5050427a90015a90177", true);
+
+	gotStr = sstr.getDataStr();
+
+	if (strcasecmp(gotStr.c_str(), expectStr.c_str()) == 0)
+		std::cout << "ctor unescaped successful." << std::endl;
+	else
+		std::cout << "ctor unescaped invalid: got " << gotStr
+			<< ", expected " << expectStr << std::endl;
+
+	return 0;
+
+}