#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdarg.h>
#include <limits.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <stddef.h>
#include <time.h>
#include <errno.h>
#include <getopt.h>
#include <gfaserial.h>
#include <gfabootlmast.h>
#include "main.h"
#include "cmdopt.h"
#include "error.h"
#include "output.h"
#include "modbmst.h"

/////////////////////////////////////////////////////////////////////////////

#define _IS_POWER_OF_2(x)						(!!(x) && !((x) & ((x) - 1)))
#define _IS_VALID_STATION_NUMBER(s)				(((s) > 0) && ((s) <= 99))
#define _IS_VALID_BLOCK_SIZE(s)					(((s) >= GFA_BOOTLOADER_MIN_SEND_DATA_BLOCK_SIZE) && ((s) <= GFA_BOOTLOADER_MAX_SEND_DATA_BLOCK_SIZE) && !((s) & 0x03))

/////////////////////////////////////////////////////////////////////////////

#define _OV_HAS_UPLOAD_IMG						((uint32_t)0x00000001)
#define _OV_HAS_SHOW_FILE_IMG_INFO				((uint32_t)0x00000002)
#define _OV_HAS_SHOW_DEV_IMG_INFO				((uint32_t)0x00000004)
#define _OV_HAS_VALIDATE_IMG					((uint32_t)0x00000008)
#define _OV_HAS_SHOW_MAT_SER					((uint32_t)0x00000010)
#define _OV_HAS_SET_MAT_SER						((uint32_t)0x00000020)
#define _OV_HAS_BOOT_PING						((uint32_t)0x00000040)
#define _OV_HAS_START_BOOT						((uint32_t)0x00000080)
#define _OV_HAS_RESET_BOOT						((uint32_t)0x00000100)
#define _OV_HAS_RESCUE_BOOT						((uint32_t)0x00000200)

#define _OV_HAS_IMG_FILE						((uint32_t)0x00001000)
#define _OV_HAS_ITF_NAME						((uint32_t)0x00002000)
#define _OV_HAS_BLOCK_SIZE						((uint32_t)0x00004000)
#define _OV_HAS_APP_ADDR						((uint32_t)0x00008000)
#define _OV_HAS_X_BAUD_RATE						((uint32_t)0x00010000)
#define _OV_HAS_STATION_NUMBER					((uint32_t)0x00020000)
#define _OV_HAS_NODE_ADDR						((uint32_t)0x00040000)
#define _OV_HAS_SLAVE_ADDR						((uint32_t)0x00080000)
#define _OV_HAS_MATERIAL						((uint32_t)0x00100000)
#define _OV_HAS_SERIAL							((uint32_t)0x00200000)
#define _OV_HAS_PING_INTERVAL					((uint32_t)0x00400000)
#define _OV_HAS_NO_SHOW_PROGRESS				((uint32_t)0x00800000)
#define _OV_HAS_PAGE_ERASE_TIME					((uint32_t)0x01000000)
#define _OV_HAS_MODBUS_SLAVE_ID					((uint32_t)0x02000000)
#define _OV_HAS_MODBUS_CTRL_REG					((uint32_t)0x04000000)
#define _OV_HAS_FORCE_ALL_PARITIES				((uint32_t)0x08000000)
#define _OV_HAS_PLUGIN_MODE						((uint32_t)0x10000000)

/////////////////////////////////////////////////////////////////////////////

#define _OV_CMD_MASK							((uint32_t)0x00000FFF)
#define _OV_OPT_MASK							(~_OV_CMD_MASK)

/////////////////////////////////////////////////////////////////////////////

#define _REQ_CONNECTION_OPTS					(_OV_HAS_ITF_NAME | _OV_HAS_SLAVE_ADDR)

#define _REQ_OPTS_UPLOAD_IMG					(_OV_HAS_IMG_FILE | _REQ_CONNECTION_OPTS)
#define _REQ_OPTS_SHOW_IMG_INFO_OFFLINE			_OV_HAS_IMG_FILE
#define _REQ_OPTS_SHOW_IMG_INFO_ONLINE			_REQ_CONNECTION_OPTS
#define _REQ_OPTS_VALIDATE_IMG					(_OV_HAS_IMG_FILE | _REQ_CONNECTION_OPTS)
#define _REQ_OPTS_SHOW_MAT_SER					_REQ_CONNECTION_OPTS
#define _REQ_OPTS_SET_MAT_SER					(_REQ_CONNECTION_OPTS | _OV_HAS_MATERIAL | _OV_HAS_SERIAL)
#define _REQ_OPTS_BOOT_PING						_REQ_CONNECTION_OPTS
#define _REQ_OPTS_START_BOOT					_REQ_CONNECTION_OPTS
#define _REQ_OPTS_RESET_BOOT					_REQ_CONNECTION_OPTS
#define _REQ_OPTS_RESCUE_BOOT					_REQ_CONNECTION_OPTS

/////////////////////////////////////////////////////////////////////////////

#define _OPT_CONNECTION_OPTS					(_OV_HAS_STATION_NUMBER | _OV_HAS_NODE_ADDR | _OV_HAS_MODBUS_SLAVE_ID | _OV_HAS_MODBUS_CTRL_REG | _OV_HAS_FORCE_ALL_PARITIES)

#define _OPT_OPTS_UPLOAD_IMG					(_OPT_CONNECTION_OPTS | _OV_HAS_IMG_FILE | _OV_HAS_APP_ADDR | _OV_HAS_X_BAUD_RATE | _OV_HAS_NO_SHOW_PROGRESS | _OV_HAS_PAGE_ERASE_TIME | _OV_HAS_BLOCK_SIZE | _OV_HAS_PLUGIN_MODE)
#define _OPT_OPTS_SHOW_IMG_INFO_OFFLINE			(_OV_HAS_APP_ADDR | _OV_HAS_PLUGIN_MODE)
#define _OPT_OPTS_SHOW_IMG_INFO_ONLINE			(_OPT_CONNECTION_OPTS | _OV_HAS_X_BAUD_RATE | _OV_HAS_APP_ADDR | _OV_HAS_PLUGIN_MODE)
#define _OPT_OPTS_VALIDATE_IMG					(_OPT_CONNECTION_OPTS | _OV_HAS_APP_ADDR | _OV_HAS_PLUGIN_MODE)
#define _OPT_OPTS_SHOW_MAT_SER					(_OPT_CONNECTION_OPTS | _OV_HAS_PLUGIN_MODE)
#define _OPT_OPTS_SET_MAT_SER					(_OPT_CONNECTION_OPTS | _OV_HAS_PLUGIN_MODE)
#define _OPT_OPTS_BOOT_PING						(_OPT_CONNECTION_OPTS | _OV_HAS_PING_INTERVAL | _OV_HAS_PLUGIN_MODE)
#define _OPT_OPTS_START_BOOT					(_OPT_CONNECTION_OPTS | _OV_HAS_PLUGIN_MODE)
#define _OPT_OPTS_RESET_BOOT					(_OPT_CONNECTION_OPTS | _OV_HAS_PLUGIN_MODE)
#define _OPT_OPTS_RESCUE_BOOT					(_OPT_CONNECTION_OPTS | _OV_HAS_PLUGIN_MODE)

/////////////////////////////////////////////////////////////////////////////

#define _GET_OPTS(m)							((m) & _OV_OPT_MASK)
#define _GET_CMD(m)								((m) & _OV_CMD_MASK)
#define _HAS_CMD(m)								(!!_GET_CMD(m))
#define _HAS_VALID_CMD(m)						(_HAS_CMD(m) && _IS_POWER_OF_2(_GET_CMD(m)))
#define _IS_OFFLINE_CMD(m)						(_GET_CMD(m) == _OV_HAS_SHOW_FILE_IMG_INFO)
#define _HAS_REQUIRED_OPTIONS(m, r)				((_GET_OPTS(m) & (r)) == (r))
#define _GET_MISSING_OPTS(m, r)					((_GET_OPTS(m) ^ (r)) & (r))
#define _GET_UNUSED_OPTS(m, r, o)				((_GET_OPTS(m) ^ (r)) & ~(o))

/////////////////////////////////////////////////////////////////////////////

#define _OPT_STRING_UPLOAD_IMG					"upload-img"
#define _OPT_STRING_VALIDATE_IMG				"validate-img"
#define _OPT_STRING_SHOW_FILE_IMG_INFO			"show-file-img-info"
#define _OPT_STRING_SHOW_DEV_IMG_INFO			"show-dev-img-info"
#define _OPT_STRING_SHOW_MAT_SER				"show-mat-ser"
#define _OPT_STRING_SET_MAT_SER					"set-mat-ser"
#define _OPT_STRING_BOOT_PING					"ping-target"
#define _OPT_STRING_START_BOOT					"start-boot"
#define _OPT_STRING_RESET_BOOT					"reset-boot"
#define _OPT_STRING_RESCUE_BOOT					"revive-boot"
#define _OPT_STRING_ITF_NAME					"itf-name"
#define _OPT_STRING_X_BAUD_RATE					"x-baud-rate"
#define _OPT_STRING_STATION_NUMBER				"stat-num"
#define _OPT_STRING_NODE_ADDR					"node-addr"
#define _OPT_STRING_MATERIAL					"material"
#define _OPT_STRING_SERIAL						"serial"
#define _OPT_STRING_SLAVE_ADDR					"stat-num or node-addr"
#define _OPT_STRING_APP_BASE_ADDR				"app-addr"
#define _OPT_STRING_BLOCK_SIZE					"block-size"
#define _OPT_STRING_PING_INTERVAL				"ping-int"
#define _OPT_STRING_PAGE_ERASE_TIME				"page-erase-time"
#define _OPT_STRING_NO_SHOW_PROGRESS			"no-progress"
#define _OPT_STRING_MODBUS_SLAVE_ID				"mb-slave-id"
#define _OPT_STRING_MODBUS_CTRL_REG				"mb-bl-ctrl-reg"
#define _OPT_STRING_FORCE_ALL_PARITIES			"force-all-par"
#define _OPT_STRING_PLUGIN_MODE					"plugin-mode"
#define _OPT_STRING_VERBOSITY					"verbosity"
#define _OPT_STRING_HELP						"help"
#define _OPT_STRING_IMG_FILE					"<IMG FILE>"

#define _MAX_CMD_LENGTH							18
#define _MAX_OPT_LENGTH							15

/////////////////////////////////////////////////////////////////////////////

int g_nVerbosity = CMD_OPT_DEFAULT_VERBOSITY;
bool g_bPluginMode = false;

/////////////////////////////////////////////////////////////////////////////

static const uint8_t g_nodeTable[] =
{
	// 1 - 99
	0x11,	0x12,	0x13,	0x14,	0x15,	0x16,	0x17,	0x18,	0x19,	0x1A,
	0x21,	0x22,	0x23,	0x24,	0x25,	0x26,	0x27,	0x28,	0x29,	0x2A,
	0x31,	0x32,	0x33,	0x34,	0x35,	0x36,	0x37,	0x38,	0x39,	0x3A,
	0x41,	0x42,	0x43,	0x44,	0x45,	0x46,	0x47,	0x48,	0x49,	0x4A,
	0x51,	0x52,	0x53,	0x54,	0x55,	0x56,	0x57,	0x58,	0x59,	0x5A,
	0x61,	0x62,	0x63,	0x64,	0x65,	0x66,	0x67,	0x68,	0x69,	0x6A,
	0x71,	0x72,	0x73,	0x74,	0x75,	0x76,	0x77,	0x78,	0x79,	0x7A,
	0x81,	0x82,	0x83,	0x84,	0x85,	0x86,	0x87,	0x88,	0x89,	0x8A,
	0x91,	0x92,	0x93,	0x94,	0x95,	0x96,	0x97,	0x98,	0x99,	0x9A,
	0xA1,	0xA2,	0xA3,	0xA4,	0xA5,	0xA6,	0xA7,	0xA8,	0xA9
};

/////////////////////////////////////////////////////////////////////////////

static const char* _GetOptName(uint32_t nOpt)
{
	switch(nOpt)
	{
	case _OV_HAS_UPLOAD_IMG:
		return _OPT_STRING_UPLOAD_IMG;
	case _OV_HAS_VALIDATE_IMG:
		return _OPT_STRING_VALIDATE_IMG;
	case _OV_HAS_SHOW_FILE_IMG_INFO:
		return _OPT_STRING_SHOW_FILE_IMG_INFO;
	case _OV_HAS_SHOW_DEV_IMG_INFO:
		return _OPT_STRING_SHOW_DEV_IMG_INFO;
	case _OV_HAS_SHOW_MAT_SER:
		return _OPT_STRING_SHOW_MAT_SER;
	case _OV_HAS_BOOT_PING:
		return _OPT_STRING_BOOT_PING;
	case _OV_HAS_START_BOOT:
		return _OPT_STRING_START_BOOT;
	case _OV_HAS_RESET_BOOT:
		return _OPT_STRING_RESET_BOOT;
	case _OV_HAS_RESCUE_BOOT:
		return _OPT_STRING_RESCUE_BOOT;
	case _OV_HAS_PING_INTERVAL:
		return _OPT_STRING_PING_INTERVAL;
	case _OV_HAS_NO_SHOW_PROGRESS:
		return _OPT_STRING_NO_SHOW_PROGRESS;
	case _OV_HAS_ITF_NAME:
		return _OPT_STRING_ITF_NAME;
	case _OV_HAS_BLOCK_SIZE:
		return _OPT_STRING_BLOCK_SIZE;
	case _OV_HAS_APP_ADDR:
		return _OPT_STRING_APP_BASE_ADDR;
	case _OV_HAS_X_BAUD_RATE:
		return _OPT_STRING_X_BAUD_RATE;
	case _OV_HAS_PAGE_ERASE_TIME:
		return _OPT_STRING_PAGE_ERASE_TIME;
	case _OV_HAS_STATION_NUMBER:
		return _OPT_STRING_STATION_NUMBER;
	case _OV_HAS_NODE_ADDR:
		return _OPT_STRING_NODE_ADDR;
	case _OV_HAS_SLAVE_ADDR:
		return _OPT_STRING_SLAVE_ADDR;
	case _OV_HAS_MATERIAL:
		return _OPT_STRING_MATERIAL;
	case _OV_HAS_SERIAL:
		return _OPT_STRING_SERIAL;
	case _OV_HAS_SET_MAT_SER:
		return _OPT_STRING_SET_MAT_SER;
	case _OV_HAS_IMG_FILE:
		return _OPT_STRING_IMG_FILE;
	case _OV_HAS_MODBUS_SLAVE_ID:
		return _OPT_STRING_MODBUS_SLAVE_ID;
	case _OV_HAS_MODBUS_CTRL_REG:
		return _OPT_STRING_MODBUS_CTRL_REG;
	case _OV_HAS_FORCE_ALL_PARITIES:
		return _OPT_STRING_FORCE_ALL_PARITIES;
	case _OV_HAS_PLUGIN_MODE:
		return _OPT_STRING_PLUGIN_MODE;
	default:
		return NULL;
	}
}

static const char* _GetOptValue(uint32_t nOpt, LPCMD_LINE_ARGS pcla)
{
	static char szValue[32];

	switch(nOpt)
	{
	case _OV_HAS_UPLOAD_IMG:
		return _OPT_STRING_UPLOAD_IMG;
	case _OV_HAS_VALIDATE_IMG:
		return _OPT_STRING_VALIDATE_IMG;
	case _OV_HAS_SHOW_FILE_IMG_INFO:
		return _OPT_STRING_SHOW_FILE_IMG_INFO;
	case _OV_HAS_SHOW_DEV_IMG_INFO:
		return _OPT_STRING_SHOW_DEV_IMG_INFO;
	case _OV_HAS_SHOW_MAT_SER:
		return _OPT_STRING_SHOW_MAT_SER;
	case _OV_HAS_BOOT_PING:
		return _OPT_STRING_BOOT_PING;
	case _OV_HAS_START_BOOT:
		return _OPT_STRING_START_BOOT;
	case _OV_HAS_RESET_BOOT:
		return _OPT_STRING_RESET_BOOT;
	case _OV_HAS_RESCUE_BOOT:
		return _OPT_STRING_RESCUE_BOOT;

	case _OV_HAS_PING_INTERVAL:
		snprintf(szValue, sizeof(szValue) - 1, "%d", pcla->nPingIntervalSec);
		break;
	case _OV_HAS_ITF_NAME:
		return pcla->pszDevName ? pcla->pszDevName : "empty";
	case _OV_HAS_BLOCK_SIZE:
		snprintf(szValue, sizeof(szValue) - 1, "%u", pcla->nBlockSize);
		break;
	case _OV_HAS_APP_ADDR:
		snprintf(szValue, sizeof(szValue) - 1, "0x%X", pcla->nStartAddr);
		break;
	case _OV_HAS_X_BAUD_RATE:
		snprintf(szValue, sizeof(szValue) - 1, "%u", pcla->nExBaudrate);
		break;
	case _OV_HAS_PAGE_ERASE_TIME:
		snprintf(szValue, sizeof(szValue) - 1, "%u", pcla->nPageErsaeTime);
		break;
	case _OV_HAS_STATION_NUMBER:
		snprintf(szValue, sizeof(szValue) - 1, "%hhu", pcla->nStationNr);
		break;
	case _OV_HAS_NODE_ADDR:
		snprintf(szValue, sizeof(szValue) - 1, "0x%02hhX", pcla->nNodeAddr);
		break;
	case _OV_HAS_SLAVE_ADDR:
		return _OPT_STRING_SLAVE_ADDR;
	case _OV_HAS_MATERIAL:
		return pcla->pszMaterial ? pcla->pszMaterial : "empty";
	case _OV_HAS_SERIAL:
		return pcla->pszSerial ? pcla->pszSerial : "empty";
	case _OV_HAS_IMG_FILE:
		return pcla->pszImgFile ? pcla->pszImgFile : "empty";
	case _OV_HAS_NO_SHOW_PROGRESS:
		return pcla->bNoProgressBlock ? "true" : "false";
	case _OV_HAS_MODBUS_SLAVE_ID:
		snprintf(szValue, sizeof(szValue) - 1, "%hhu", pcla->nModbusSlvID);
		break;
	case _OV_HAS_MODBUS_CTRL_REG:
		snprintf(szValue, sizeof(szValue) - 1, "%hu", pcla->nModbusCtrlReg);
		break;
	case _OV_HAS_FORCE_ALL_PARITIES:
		return "true";
	case _OV_HAS_PLUGIN_MODE:
		return "true";
	default:
		return "empty";
	}

	szValue[31] = '\0';
	return szValue;
}

/////////////////////////////////////////////////////////////////////////////

const char* GfaTfuCmdOpt2String(uint32_t nOpts)
{
	static char szOptStr[600];

	if(nOpts)
	{
		int nCount = 0;
		uint32_t nMask = 1;
		memset(szOptStr, '\0', sizeof(szOptStr));

		while(nMask)
		{
			if(nOpts & nMask)
			{
				const char *pszOptName = _GetOptName(nMask);
				if(pszOptName)
				{
					if(nCount++)
						strcat(szOptStr, ", ");
					strcat(szOptStr, pszOptName);
				}
			}

			nMask <<= 1;
		}

		return szOptStr;
	}

	return "";
}

/////////////////////////////////////////////////////////////////////////////

static const struct option g_lo[] =
{
	{
		_OPT_STRING_UPLOAD_IMG,
		no_argument,
		NULL,
		ov_upload_img
	},
	{
		_OPT_STRING_VALIDATE_IMG,
		no_argument,
		NULL,
		ov_validate_img
	},
	{
		_OPT_STRING_SHOW_FILE_IMG_INFO,
		no_argument,
		NULL,
		ov_show_file_img_info
	},
	{
		_OPT_STRING_SHOW_DEV_IMG_INFO,
		no_argument,
		NULL,
		ov_show_dev_img_info
	},
	{
		_OPT_STRING_SHOW_MAT_SER,
		no_argument,
		NULL,
		ov_show_mat_ser
	},
	{
		_OPT_STRING_SET_MAT_SER,
		no_argument,
		NULL,
		ov_set_mat_ser
	},
	{
		_OPT_STRING_MATERIAL,
		required_argument,
		NULL,
		ov_material
	},
	{
		_OPT_STRING_SERIAL,
		required_argument,
		NULL,
		ov_serial
	},
	{
		_OPT_STRING_NO_SHOW_PROGRESS,
		no_argument,
		NULL,
		ov_no_progress
	},
	{
		_OPT_STRING_BOOT_PING,
		no_argument,
		NULL,
		ov_boot_ping
	},
	{
		_OPT_STRING_START_BOOT,
		no_argument,
		NULL,
		ov_start_boot
	},
	{
		_OPT_STRING_RESET_BOOT,
		no_argument,
		NULL,
		ov_reset_boot
	},
	{
		_OPT_STRING_RESCUE_BOOT,
		no_argument,
		NULL,
		ov_rescue_boot
	},
	{
		_OPT_STRING_PING_INTERVAL,
		required_argument,
		NULL,
		ov_ping_interval
	},
	{
		_OPT_STRING_ITF_NAME,
		required_argument,
		NULL,
		ov_itf_name
	},
	{
		_OPT_STRING_X_BAUD_RATE,
		required_argument,
		NULL,
		ov_x_baud_rate
	},
	{
		_OPT_STRING_STATION_NUMBER,
		required_argument,
		NULL,
		ov_station_number
	},
	{
		_OPT_STRING_NODE_ADDR,
		required_argument,
		NULL,
		ov_node_addr
	},
	{
		_OPT_STRING_PAGE_ERASE_TIME,
		required_argument,
		NULL,
		ov_page_erase_time
	},
	{
		_OPT_STRING_APP_BASE_ADDR,
		required_argument,
		NULL,
		ov_app_addr
	},
	{
		_OPT_STRING_BLOCK_SIZE,
		required_argument,
		NULL,
		ov_block_size
	},
	{
		_OPT_STRING_MODBUS_SLAVE_ID,
		required_argument,
		NULL,
		ov_mb_slave_id
	},
	{
		_OPT_STRING_MODBUS_CTRL_REG,
		required_argument,
		NULL,
		ov_mb_ctrl_reg
	},
	{
		_OPT_STRING_FORCE_ALL_PARITIES,
		no_argument,
		NULL,
		ov_force_all_par
	},
	{
		_OPT_STRING_PLUGIN_MODE,
		no_argument,
		NULL,
		ov_plugin_mode
	},
	{
		_OPT_STRING_VERBOSITY,
		required_argument,
		NULL,
		ov_verbosity
	},
	{
		_OPT_STRING_HELP,
		no_argument,
		NULL,
		ov_help
	},
	{
		NULL,
		0,
		NULL,
		0
	}
};

/////////////////////////////////////////////////////////////////////////////

static int64_t _ArgStr2Num(const char *pszNum, int64_t nDefault)
{
	if(pszNum && *pszNum)
	{
		char *pszEnd = NULL;
		int64_t n = strtoll(pszNum, &pszEnd, 0);
		if((((n == LLONG_MIN) || (n == LLONG_MAX)) && (errno == ERANGE)) || *pszEnd)
			return nDefault;
		return n;
	}

	return nDefault;
}

/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////

void GfaTfuCmdOptInitOpts(LPCMD_LINE_ARGS pcla)
{
	memset(pcla, 0, sizeof(CMD_LINE_ARGS));
	pcla->nBootBaudrate		= CMD_OPT_DEFAULT_BAUDRATE;
	pcla->nInitBaudrate		= CMD_OPT_DEFAULT_BAUDRATE;
	pcla->nModbBaudrate		= CMD_OPT_DEFAULT_BAUDRATE;
	pcla->modbParity		= CMD_OPT_DEFAULT_MODBUS_PARITY;
	pcla->nBlockSize		= GFA_BOOTLOADER_DEF_SEND_DATA_BLOCK_SIZE;
	pcla->nStartAddr		= CMD_OPT_DEFAULT_APP_BASE_ADDRESS;
	pcla->nPageErsaeTime	= CMD_OPT_DEFAULT_PAGE_ERASE_TIME;
	pcla->nVerbosity		= CMD_OPT_DEFAULT_VERBOSITY;
	pcla->nModbusCtrlReg	= CMD_OPT_DEFAULT_MODBUS_START_REGISTER;
}

/////////////////////////////////////////////////////////////////////////////

int GfaTfuCmdOptParse(int argc, char* argv[], LPCMD_LINE_ARGS pcla)
{
	int opt, nCount = 0;
	pcla->nOptFlags = 0;

	while((opt = getopt_long(argc, argv, "-a:b:d:e:fgi:m:n:ps:t:v:x:?", g_lo, NULL)) != -1)
	{
		const char *arg = optarg;

		switch(opt)
		{
		case ov_img_file:
			if(arg)
			{
				const char *pszFileBase = strrchr(arg, '/');
				pcla->pszImgFile = arg;
				if(pszFileBase)
					pcla->pszImgFileBase = ++pszFileBase;
				pcla->nOptFlags |= _OV_HAS_IMG_FILE;
			}
			break;
		case ov_itf_name:
			if(arg)
			{
				pcla->pszDevName = arg;
				pcla->nOptFlags |= _OV_HAS_ITF_NAME;
			}
			break;
		case ov_show_dev_img_info:
			pcla->bShowDevImgInfo = true;
			pcla->nOptFlags |= _OV_HAS_SHOW_DEV_IMG_INFO;
			break;
		case ov_show_file_img_info:
			pcla->bShowFileImgInfo = true;
			pcla->nOptFlags |= _OV_HAS_SHOW_FILE_IMG_INFO;
			break;
		case ov_show_mat_ser:
			pcla->bShowMatSer = true;
			pcla->nOptFlags |= _OV_HAS_SHOW_MAT_SER;
			break;
		case ov_set_mat_ser:
			pcla->bSetMatSer = true;
			pcla->nOptFlags |= _OV_HAS_SET_MAT_SER;
			break;
		case ov_validate_img:
			pcla->bValidateImg = true;
			pcla->nOptFlags |= _OV_HAS_VALIDATE_IMG;
			break;
		case ov_upload_img:
			pcla->bUploadImg = true;
			pcla->nOptFlags |= _OV_HAS_UPLOAD_IMG;
			break;
		case ov_boot_ping:
			pcla->bPing = true;
			pcla->nOptFlags |= _OV_HAS_BOOT_PING;
			break;
		case ov_start_boot:
			pcla->bStartBoot = true;
			pcla->nOptFlags |= _OV_HAS_START_BOOT;
			break;
		case ov_reset_boot:
			pcla->bResetBoot = true;
			pcla->nOptFlags |= _OV_HAS_RESET_BOOT;
			break;
		case ov_rescue_boot:
			pcla->bReviveBoot = true;
			pcla->nOptFlags |= _OV_HAS_RESCUE_BOOT;
			break;
		case ov_ping_interval:
			pcla->nPingIntervalSec = (int32_t)_ArgStr2Num(arg, 0);
			if(pcla->nPingIntervalSec > 0)
				pcla->nOptFlags |= _OV_HAS_PING_INTERVAL;
			break;
		case ov_material:
			if(arg && *arg)
			{
				pcla->pszMaterial = arg;
				pcla->nOptFlags |= _OV_HAS_MATERIAL;
			}
			break;
		case ov_serial:
			if(arg && *arg)
			{
				pcla->pszSerial = arg;
				pcla->nOptFlags |= _OV_HAS_SERIAL;
			}
			break;
		case ov_no_progress:
			pcla->bNoProgressBlock = true;
			pcla->nOptFlags |= _OV_HAS_NO_SHOW_PROGRESS;
			break;
		case ov_block_size:
			pcla->nBlockSize = (uint32_t)_ArgStr2Num(arg, GFA_BOOTLOADER_DEF_SEND_DATA_BLOCK_SIZE);
			pcla->nOptFlags |= _OV_HAS_BLOCK_SIZE;
			break;
		case ov_app_addr:
			pcla->nStartAddr = (uint32_t)_ArgStr2Num(arg, CMD_OPT_DEFAULT_APP_BASE_ADDRESS);
			pcla->nOptFlags |= _OV_HAS_APP_ADDR;
			break;
		case ov_x_baud_rate:
			pcla->nExBaudrate = (uint32_t)_ArgStr2Num(arg, 0);
			pcla->nOptFlags |= _OV_HAS_X_BAUD_RATE;
			break;
		case ov_page_erase_time:
			pcla->nPageErsaeTime = (uint32_t)_ArgStr2Num(arg, CMD_OPT_DEFAULT_PAGE_ERASE_TIME);
			pcla->nOptFlags |= _OV_HAS_PAGE_ERASE_TIME;
			break;
		case ov_station_number:
			pcla->nStationNr = (uint8_t)_ArgStr2Num(arg, 0);
			pcla->nOptFlags |= _OV_HAS_STATION_NUMBER;
			pcla->nOptFlags |= _OV_HAS_SLAVE_ADDR;
			break;
		case ov_node_addr:
			pcla->nNodeAddr = (uint8_t)_ArgStr2Num(arg, 0);
			pcla->nOptFlags |= _OV_HAS_NODE_ADDR;
			pcla->nOptFlags |= _OV_HAS_SLAVE_ADDR;
			break;
		case ov_mb_slave_id:
			pcla->nModbusSlvID = (uint8_t)_ArgStr2Num(arg, 0xFF);
			pcla->nOptFlags |= _OV_HAS_MODBUS_SLAVE_ID;
			break;
		case ov_mb_ctrl_reg:
			pcla->nModbusCtrlReg = (uint16_t)_ArgStr2Num(arg, CMD_OPT_DEFAULT_MODBUS_START_REGISTER);
			pcla->nOptFlags |= _OV_HAS_MODBUS_CTRL_REG;
			break;
		case ov_force_all_par:
			pcla->bForceAllParities = true;
			pcla->nOptFlags |= _OV_HAS_FORCE_ALL_PARITIES;
			break;
		case ov_plugin_mode:
			pcla->bPluginMode = true;
			pcla->nOptFlags |= _OV_HAS_PLUGIN_MODE;
			break;
		case ov_verbosity:
			pcla->nVerbosity = (int)_ArgStr2Num(arg, CMD_OPT_DEFAULT_VERBOSITY);
			break;
		case ov_help:
			++pcla->nQuestionMarks;
			pcla->bShowHelp = true;
			break;
		}

		++nCount;
	}

	if(nCount == 0)
		pcla->bShowHelp = true;

	return nCount;
}

/////////////////////////////////////////////////////////////////////////////

int GfaTfuCmdOptProcess(LPCMD_LINE_ARGS pcla)
{
	/////////////////////////////////////////////////////////////////////////
	// If help is requested, do nothing else

	if(pcla->bShowHelp)
		return 1;

	/////////////////////////////////////////////////////////////////////////
	// adjust verbosity

	if(pcla->nVerbosity < CMD_OPT_MIN_VERBOSITY)
		pcla->nVerbosity = CMD_OPT_MIN_VERBOSITY;
	else if(pcla->nVerbosity > CMD_OPT_MAX_VERBOSITY)
		pcla->nVerbosity = CMD_OPT_MAX_VERBOSITY;
	g_nVerbosity = pcla->nVerbosity;

	/////////////////////////////////////////////////////////////////////////
	// if we are in plugin-mode we produce formatted output only
	
	if(pcla->bPluginMode)
	{
		g_nVerbosity = pcla->nVerbosity = -1;
		g_bPluginMode = true;
	}

	/////////////////////////////////////////////////////////////////////////
	// validate commands

	pcla->nCmdFlags = _GET_CMD(pcla->nOptFlags);
	if(!_HAS_CMD(pcla->nOptFlags))
	{
		if(!(pcla->nOptFlags & (_OV_HAS_MATERIAL | _OV_HAS_SERIAL)))
			return GFA_FU_ERROR_NOTHING_TO_DO;
	}
	else if(!_HAS_VALID_CMD(pcla->nOptFlags))
		return GFA_FU_ERROR_MULTIPLE_COMMANDS;

	/////////////////////////////////////////////////////////////////////////
	// validate connection options if required

	if(!_IS_OFFLINE_CMD(pcla->nOptFlags))
	{
		if(!pcla->nExBaudrate)
			pcla->nExBaudrate = pcla->nInitBaudrate;

		if(!GfaSerialIsValidBaudrate(pcla->nExBaudrate))
			return GFA_FU_ERROR_INVALID_BAUDRATE;
		else if((pcla->nOptFlags & (_OV_HAS_STATION_NUMBER | _OV_HAS_NODE_ADDR)) == (_OV_HAS_STATION_NUMBER | _OV_HAS_NODE_ADDR))
			return GFA_FU_ERROR_NODE_STATION_MUTEX;
		else if(pcla->nOptFlags & _OV_HAS_STATION_NUMBER)
		{
			if(!_IS_VALID_STATION_NUMBER(pcla->nStationNr))
				return GFA_FU_ERROR_INVALID_STATION_NUM;
			pcla->nNodeAddr = g_nodeTable[pcla->nStationNr - 1];
		}
		else if((pcla->nOptFlags & _OV_HAS_NODE_ADDR) && (NODE_IS_MULTICAST(pcla->nNodeAddr) || (pcla->nNodeAddr < MINET_MIN_NODE_ADDRESS)))
			return GFA_FU_ERROR_INVALID_NODE_ADDR;
	}

	/////////////////////////////////////////////////////////////////////////
	// validate command options

	switch(pcla->nCmdFlags)
	{
	case _OV_HAS_UPLOAD_IMG:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_UPLOAD_IMG))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_UPLOAD_IMG);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		else if((pcla->nOptFlags & _OV_HAS_BLOCK_SIZE) && !_IS_VALID_BLOCK_SIZE(pcla->nBlockSize))
			return GFA_FU_ERROR_INVALID_BLOCK_SIZE;
		else if(pcla->nStartAddr == (uint32_t)-1)
			return GFA_FU_ERROR_INVALID_APP_START_ADDR;
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_UPLOAD_IMG, _OPT_OPTS_UPLOAD_IMG);
		pcla->bNeedImgFile = true;
		break;
	case _OV_HAS_SHOW_FILE_IMG_INFO:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_SHOW_IMG_INFO_OFFLINE))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_SHOW_IMG_INFO_OFFLINE);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_SHOW_IMG_INFO_OFFLINE, _OPT_OPTS_SHOW_IMG_INFO_OFFLINE);
		pcla->bNeedImgFile = true;
		break;
	case _OV_HAS_SHOW_DEV_IMG_INFO:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_SHOW_IMG_INFO_ONLINE))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_SHOW_IMG_INFO_ONLINE);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_SHOW_IMG_INFO_ONLINE, _OPT_OPTS_SHOW_IMG_INFO_ONLINE);
		break;
	case _OV_HAS_VALIDATE_IMG:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_VALIDATE_IMG))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_VALIDATE_IMG);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_VALIDATE_IMG, _OPT_OPTS_VALIDATE_IMG);
		pcla->bNeedImgFile = true;
		break;
	case _OV_HAS_SHOW_MAT_SER:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_SHOW_MAT_SER))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_SHOW_MAT_SER);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_SHOW_MAT_SER, _OPT_OPTS_SHOW_MAT_SER);
		break;
	case _OV_HAS_SET_MAT_SER:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_SET_MAT_SER))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_SET_MAT_SER);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		if(	(strlen(pcla->pszMaterial) >= GFA_APP_MAX_IMG_MATERIAL_NUM_LENGTH) ||
			(strlen(pcla->pszSerial) >= GFA_APP_MAX_IMG_SERIAL_NUM_LENGTH))
		{
			return GFA_FU_ERROR_MAT_OR_SER_TOO_LONG;
		}
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_SET_MAT_SER, _OPT_OPTS_SET_MAT_SER);
		break;
	case _OV_HAS_BOOT_PING:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_BOOT_PING))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_BOOT_PING);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		else if(pcla->nPingIntervalSec < 0)
			return GFA_FU_ERROR_INVALID_COMMAND_OPT;
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_BOOT_PING, _OPT_OPTS_BOOT_PING);
		break;
	case _OV_HAS_START_BOOT:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_START_BOOT))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_START_BOOT);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_START_BOOT, _OPT_OPTS_START_BOOT);
		break;
	case _OV_HAS_RESET_BOOT:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_RESET_BOOT))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_RESET_BOOT);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_RESET_BOOT, _OPT_OPTS_RESET_BOOT);
		break;
	case _OV_HAS_RESCUE_BOOT:
		if(!_HAS_REQUIRED_OPTIONS(pcla->nOptFlags, _REQ_OPTS_RESCUE_BOOT))
		{
			pcla->nMissingOptFlags = _GET_MISSING_OPTS(pcla->nOptFlags, _REQ_OPTS_RESCUE_BOOT);
			return GFA_FU_ERROR_MISSING_COMMAND_OPT;
		}
		pcla->nUnusedOptFlags = _GET_UNUSED_OPTS(pcla->nOptFlags, _REQ_OPTS_RESCUE_BOOT, _OPT_OPTS_RESCUE_BOOT);
		break;
	default:
		return 1;
	}

	/////////////////////////////////////////////////////////////////////////
	// validate optional options

	if(pcla->nOptFlags & _OV_HAS_MODBUS_SLAVE_ID)
	{
		if(!MODBUS_IS_VALID_SLAVE_ID(pcla->nModbusSlvID))
		{
			return GFA_FU_ERROR_INVALID_MODBUS_SLV_ID;
		}
	}

	return 0;
}

void GfaTfuCmdOptDumpOptions(LPCMD_LINE_ARGS pcla)
{
	if(pcla)
	{
		uint32_t nMask, nOpts = 0;
		TRACE3("****************************\n");
		TRACE3("COMMAND: %s\n", _GetOptName(pcla->nCmdFlags));
		TRACE3("OPTIONS:\n");

		switch(pcla->nCmdFlags)
		{
		case _OV_HAS_UPLOAD_IMG:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_UPLOAD_IMG | _OPT_OPTS_UPLOAD_IMG) & ~_OV_HAS_SLAVE_ADDR;
			break;
		case _OV_HAS_SHOW_FILE_IMG_INFO:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_SHOW_IMG_INFO_OFFLINE | _OPT_OPTS_SHOW_IMG_INFO_OFFLINE) & ~_OV_HAS_SLAVE_ADDR;
			break;
		case _OV_HAS_SHOW_DEV_IMG_INFO:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_SHOW_IMG_INFO_ONLINE | _OPT_OPTS_SHOW_IMG_INFO_ONLINE) & ~_OV_HAS_SLAVE_ADDR;
			break;
		case _OV_HAS_VALIDATE_IMG:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_VALIDATE_IMG | _OPT_OPTS_VALIDATE_IMG) & ~_OV_HAS_SLAVE_ADDR;
			break;
		case _OV_HAS_SHOW_MAT_SER:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_SHOW_MAT_SER | _OPT_OPTS_SHOW_MAT_SER) & ~_OV_HAS_SLAVE_ADDR;
			break;
		case _OV_HAS_SET_MAT_SER:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_SET_MAT_SER | _OPT_OPTS_SET_MAT_SER) & ~_OV_HAS_SLAVE_ADDR;
			break;
		case _OV_HAS_BOOT_PING:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_BOOT_PING | _OPT_OPTS_BOOT_PING) & ~_OV_HAS_SLAVE_ADDR;
			break;
		case _OV_HAS_START_BOOT:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_START_BOOT | _OPT_OPTS_START_BOOT) & ~_OV_HAS_SLAVE_ADDR;
			break;
		case _OV_HAS_RESET_BOOT:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_RESET_BOOT | _OPT_OPTS_RESET_BOOT) & ~_OV_HAS_SLAVE_ADDR;
			break;
		case _OV_HAS_RESCUE_BOOT:
			nOpts = pcla->nOptFlags & (_REQ_OPTS_RESCUE_BOOT | _OPT_OPTS_RESCUE_BOOT) & ~_OV_HAS_SLAVE_ADDR;
			break;
		default:
			return;
		}

		for(nMask = 1; nMask; nMask <<= 1)
		{
			if(nOpts & nMask)
			{
				TRACE3("  %-*s: %s\n", _MAX_OPT_LENGTH, _GetOptName(nMask), _GetOptValue(nMask, pcla));
			}
		}
		if(pcla->nUnusedOptFlags)
			TRACE3("  %-*s: %s\n", _MAX_OPT_LENGTH, "IGNORED", GfaTfuCmdOpt2String(pcla->nUnusedOptFlags));
		TRACE3("****************************\n\n");
	}
}

/////////////////////////////////////////////////////////////////////////////
// Examples:
//
// ./gfativaflashutil --upload-img --itf-name="/dev/ttyO4" -x-baud-rate 230400 -t1 "/opt/GfA/gfativaflashutil/OLS-1V1_0009_crc_9600Baud.bin" -v3 -p -b72
// ./gfativaflashutil --validate-img --itf-name="/dev/ttyO4" --app-addr=0x2000 --node-addr=0x11 "/opt/GfA/gfativaflashutil/OLS-1V1_0009_crc.bin" -v3
// ./gfativaflashutil --show-mat-ser --itf-name="/dev/ttyO4" --stat-num=1 --mb-slave-id 100 -v3
// ./gfativaflashutil --set-mat-ser --itf-name="/dev/ttyO4" --x-baud-rate=115200 --node-addr=0x11 -v3 --material="G.Z.40015 P01" --serial="18-080015 1409"
// ./gfativaflashutil --show-file-img-info "/opt/GfA/gfativaflashutil/OLS-1V1_0009_crc.bin" -a0x2000 -v3
// ./gfativaflashutil --show-dev-img-info --itf-name="/dev/ttyO4" --x-baud-rate=115200 --node-addr=0x11 -v3
// ./gfativaflashutil --ping-target --ping-int=1 --itf-name="/dev/ttyO4" --node-addr=0x11 -v3
// ./gfativaflashutil --start-boot --itf-name="/dev/ttyO4" --node-addr=0x11 -v3
// ./gfativaflashutil --reset-boot --itf-name="/dev/ttyO4" --node-addr=0x11 -v3
// ./gfativaflashutil --mb-start-boot --itf-name="/dev/ttyO4" --mb-slave-id 100 -v3
//
//

void GfaTfuCmdOptDisplayHelp(bool bGfaUser)
{
	printf("\n╔═══════════════════════════════════════════════════════╗\n");
	printf("║ gfativaflashutil v%d.%d GfA GmbH (%s %s) ║\n", GFA_FU_VER_MAJOR, GFA_FU_VER_MINOR, __DATE__, __TIME__);
	printf("╚═══════════════════════════════════════════════════════╝\n\n");
	printf(" USAGE: gfativaflashutil COMMAND [OPTIONS] [IMG FILE]\n\n");

	printf(" COMMANDS (only one command per execution is permitted):\n");
	printf("  --%-*s   Upload <IMG FILE> to the device.\n", _MAX_CMD_LENGTH, _OPT_STRING_UPLOAD_IMG);
	printf("  --%-*s   Validate <IMG FILE> with the device. (Attempts to\n", _MAX_CMD_LENGTH, _OPT_STRING_VALIDATE_IMG);
	printf("    %-*s   match the material numbers as well).\n", _MAX_CMD_LENGTH, "");
	printf("  --%-*s   Validate <IMG FILE> offline and display image\n", _MAX_CMD_LENGTH, _OPT_STRING_SHOW_FILE_IMG_INFO);
	printf("    %-*s   information.\n", _MAX_CMD_LENGTH, "");
	printf("  --%-*s   Display bootloader and (if available) application\n", _MAX_CMD_LENGTH, _OPT_STRING_SHOW_DEV_IMG_INFO);
	printf("    %-*s   image information of the target device.\n", _MAX_CMD_LENGTH, "");
	printf("  --%-*s   Display the material and serial number of the\n", _MAX_CMD_LENGTH, _OPT_STRING_SHOW_MAT_SER);
	printf("    %-*s   target device.\n", _MAX_CMD_LENGTH, "");
	
	if(bGfaUser)
	{
		printf("  --%-*s   Set the material and serial number of the\n", _MAX_CMD_LENGTH, _OPT_STRING_SET_MAT_SER);
		printf("    %-*s   target device.\n", _MAX_CMD_LENGTH, "");
	}
	
	printf("  --%-*s   Ping the target device either once or continuously\n", _MAX_CMD_LENGTH, _OPT_STRING_BOOT_PING);
	printf("    %-*s   dependig on the parameter --%s.\n", _MAX_CMD_LENGTH, "", _OPT_STRING_PING_INTERVAL);
	printf("  --%-*s   Start the bootloader if an application is running.\n", _MAX_CMD_LENGTH, _OPT_STRING_START_BOOT);
	printf("  --%-*s   Reset the bootloader if no application is running.\n", _MAX_CMD_LENGTH, _OPT_STRING_RESET_BOOT);
	printf("    %-*s   If there is a valid application image in flash, it\n", _MAX_CMD_LENGTH, "");
	printf("    %-*s   will be subsequently started.\n", _MAX_CMD_LENGTH, "");
	printf("  --%-*s   Try to re-establish communication with the bootloader\n", _MAX_CMD_LENGTH, _OPT_STRING_RESCUE_BOOT);
	printf("    %-*s   if it's in a non-responsive state. This may arise\n", _MAX_CMD_LENGTH, "");
	printf("    %-*s   after a failed image upload due to an interrupted\n", _MAX_CMD_LENGTH, "");
	printf("    %-*s   communication line or any transmission failures. It\n", _MAX_CMD_LENGTH, "");
	printf("    %-*s   seems, that a verbosity of 4 in combination with high\n", _MAX_CMD_LENGTH, "");
	printf("    %-*s   baud rates can also cause this problem.\n", _MAX_CMD_LENGTH, "");
	printf("\n");

	printf(" OPTIONS:\n");
	printf("  --%-*s -d <INTERFACE> The name of the communication interface.\n", _MAX_OPT_LENGTH, _OPT_STRING_ITF_NAME);
	printf("  --%-*s -t <STATION>   Station number. Will be mapped internally\n", _MAX_OPT_LENGTH, _OPT_STRING_STATION_NUMBER);
	printf("    %-*s                to a node address. Must not be used in\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                combination with --%s.\n", _MAX_OPT_LENGTH, "", _OPT_STRING_NODE_ADDR);
	printf("  --%-*s -n <NODE>      The target's node address. Must not be used\n", _MAX_OPT_LENGTH, _OPT_STRING_NODE_ADDR);
	printf("    %-*s                in combination with --%s.\n", _MAX_OPT_LENGTH, "", _OPT_STRING_STATION_NUMBER);
	printf("  --%-*s -x <BAUDRATE>  Extended baud-rate to use for some (but not\n", _MAX_OPT_LENGTH, _OPT_STRING_X_BAUD_RATE);
	printf("    %-*s                all) commands. Because a baud-rate switch\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                involves data transfer as well, it will\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                only be used with commands that require a\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                great amount of data to be transferred!\n", _MAX_OPT_LENGTH, "");
	printf("  --%-*s -a <BASE ADDR> Flash address where to load <IMG FILE>.\n", _MAX_OPT_LENGTH, _OPT_STRING_APP_BASE_ADDR);
	printf("    %-*s                Defaults to 0x%X.\n", _MAX_OPT_LENGTH, "", CMD_OPT_DEFAULT_APP_BASE_ADDRESS);

	if(bGfaUser)
	{
		printf("  --%-*s -m <MATERIAL>  The material number to be set with the\n", _MAX_OPT_LENGTH, _OPT_STRING_MATERIAL);
		printf("    %-*s                --%s command.\n", _MAX_OPT_LENGTH, "", _OPT_STRING_SET_MAT_SER);
		printf("  --%-*s -s <SERIAL>    The serial number to be set with the\n", _MAX_OPT_LENGTH, _OPT_STRING_SERIAL);
		printf("    %-*s                --%s command.\n", _MAX_OPT_LENGTH, "", _OPT_STRING_SET_MAT_SER);
	}

	printf("  --%-*s -b <BLOCKSIZE> Size of an upload-block in bytes. (4-76,\n", _MAX_OPT_LENGTH, _OPT_STRING_BLOCK_SIZE);
	printf("    %-*s                must be a multiple of 4!). This option is\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                only used with the --%s command.\n", _MAX_OPT_LENGTH, "", _OPT_STRING_UPLOAD_IMG);
	printf("    %-*s                Defaults to %d. There is usually no need\n", _MAX_OPT_LENGTH, "", GFA_BOOTLOADER_DEF_SEND_DATA_BLOCK_SIZE);
	printf("    %-*s                to alter this value.\n", _MAX_OPT_LENGTH, "");
	printf("  --%-*s -i <SECONDS>   The optional ping interval in seconds. If a\n", _MAX_OPT_LENGTH, _OPT_STRING_PING_INTERVAL);
	printf("    %-*s                value greater than 0 is provided, a ping\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                will be made every <SECONDS> seconds. If\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                the value is 0 (the default), only one ping\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                will be executed. Use Ctrl + 'C' to abort a\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                continuous ping.\n", _MAX_OPT_LENGTH, "");
	printf("  --%-*s -p             Don't show block upload progress. This\n", _MAX_OPT_LENGTH, _OPT_STRING_NO_SHOW_PROGRESS);
	printf("    %-*s                option is especially useful when redirecting\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                the program output to a file. No argument.\n", _MAX_OPT_LENGTH, "");
	printf("  --%-*s -e <MILLISEC>  Timeout in milliseconds for erasing one\n", _MAX_OPT_LENGTH, _OPT_STRING_PAGE_ERASE_TIME);
	printf("    %-*s                flash page (usually 1 Kb). This value will\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                be multiplied with the number of pages to\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                be erased. This option is only used with\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                the --%s command. Defaults to %d ms.\n", _MAX_OPT_LENGTH, "", _OPT_STRING_UPLOAD_IMG, CMD_OPT_DEFAULT_PAGE_ERASE_TIME);
	printf("    %-*s                It's usually not necessary to increase this\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                value.\n", _MAX_OPT_LENGTH, "");
	printf("  --%-*s    <SLAVEID>   The address of the modbus slave, if there is\n", _MAX_OPT_LENGTH, _OPT_STRING_MODBUS_SLAVE_ID);
	printf("    %-*s                a modbus application running on the target.\n", _MAX_OPT_LENGTH, "");
	printf("  --%-*s    <REGISTER>  Address of the first of the modbus registers\n", _MAX_OPT_LENGTH, _OPT_STRING_MODBUS_CTRL_REG);
	printf("    %-*s                that control the start of the bootloader.\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                Defaults to %d.\n", _MAX_OPT_LENGTH, "", CMD_OPT_DEFAULT_MODBUS_START_REGISTER);
	printf("  --%-*s -f             Force modbus and mininet auto-bauding to\n", _MAX_OPT_LENGTH, _OPT_STRING_FORCE_ALL_PARITIES);
	printf("    %-*s                scan for a connection at all possible\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                parities. This option has no argument.\n", _MAX_OPT_LENGTH, "");
	printf("  --%-*s -v <0-4>       Verbosity. 0 = quiet, 1 = error, 2 = info,\n", _MAX_OPT_LENGTH, _OPT_STRING_VERBOSITY);
	printf("    %-*s                3 = status, 4 = debug. Be careful using a\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                verbosity of 4 with commands that can cause\n", _MAX_OPT_LENGTH, "");
	printf("    %-*s                heavy data transfer like --%s!\n", _MAX_OPT_LENGTH, "", _OPT_STRING_UPLOAD_IMG);
	printf("  --%-*s -?             Show this help\n", _MAX_OPT_LENGTH, _OPT_STRING_HELP);
	printf("\n");
}