/**
 * @licence app begin@
 * Copyright (C) 2012  BMW AG
 *
 * This file is part of GENIVI Project Dlt - Diagnostic Log and Trace console apps.
 *
 * Contributions are licensed to the GENIVI Alliance under one or more
 * Contribution License Agreements.
 *
 * \copyright
 * This Source Code Form is subject to the terms of the
 * Mozilla Public License, v. 2.0. If a  copy of the MPL was not distributed with
 * this file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 *
 * \author Lassi Marttala <lassi.lm.marttala@partner.bmw.de> BMW 2012
 *
 * \file dlt-system-logfile.c
 * For further information see http://www.genivi.org/.
 * @licence end@
 */

/*******************************************************************************
**                                                                            **
**  SRC-MODULE: dlt-system-shell.c                                                  **
**                                                                            **
**  TARGET    : linux                                                         **
**                                                                            **
**  PROJECT   : DLT                                                           **
**                                                                            **
**  AUTHOR    : Lassi Marttala <lassi.lm.marttala@partner.bmw.de>             **
**              Alexander Wenzel Alexander.AW.Wenzel@bmw.de                   **
**                                                                            **
**  PURPOSE   :                                                               **
**                                                                            **
**  REMARKS   :                                                               **
**                                                                            **
**  PLATFORM DEPENDANT [yes/no]: yes                                          **
**                                                                            **
**  TO BE CHANGED BY USER [yes/no]: no                                        **
**                                                                            **
*******************************************************************************/

/*******************************************************************************
**                      Author Identity                                       **
********************************************************************************
**                                                                            **
** Initials     Name                       Company                            **
** --------     -------------------------  ---------------------------------- **
**  lm          Lassi Marttala             BMW                                **
*******************************************************************************/
#include "dlt.h"
#include "dlt-system.h"

#include <string.h>
#include <stdlib.h>

#define DLT_SHELL_COMMAND_MAX_LENGTH 1024

DLT_IMPORT_CONTEXT(dltsystem)
DLT_DECLARE_CONTEXT(shellContext)

int dlt_shell_injection_callback(uint32_t service_id, void *data, uint32_t length)
{
	(void) length;
	
	DLT_LOG(shellContext,DLT_LOG_DEBUG,
			DLT_STRING("dlt-system-shell, injection callback"));
	char text[DLT_SHELL_COMMAND_MAX_LENGTH];
    int syserr = 0;

	if(length<DLT_SHELL_COMMAND_MAX_LENGTH-2)
	{
		strncpy(text,data,length);
		text[length] = 0;			
	}
	else
	{
		strncpy(text,data,DLT_SHELL_COMMAND_MAX_LENGTH-2);
		text[DLT_SHELL_COMMAND_MAX_LENGTH-1] = 0;	
	}
	
	DLT_LOG(shellContext,DLT_LOG_DEBUG,
			DLT_STRING("dlt-system-shell, injection injection id:"),
			DLT_UINT32(service_id));
	DLT_LOG(shellContext,DLT_LOG_DEBUG,
			DLT_STRING("dlt-system-shell, injection data:"),
			DLT_STRING(text));

	switch(service_id)
	{
		case 0x1001:
			if((syserr = system(text)) != 0)
			{
				DLT_LOG(shellContext,DLT_LOG_ERROR,
						DLT_STRING("dlt-system-shell, abnormal exit status."),
						DLT_STRING(text),
						DLT_INT(syserr));
			}
			else
			{
				DLT_LOG(shellContext,DLT_LOG_INFO,
						DLT_STRING("Shell command executed:"),
						DLT_STRING(text));				
			}
			break;
		default:
			DLT_LOG(shellContext,DLT_LOG_ERROR,
					DLT_STRING("dlt-system-shell, unknown command received."),
					DLT_UINT32(service_id),
					DLT_STRING(text));
			break;
	}
    return 0;
}

void init_shell()
{
	DLT_LOG(dltsystem,DLT_LOG_DEBUG,
			DLT_STRING("dlt-system-shell, register callback"));
	DLT_REGISTER_CONTEXT(shellContext,"CMD","Execute Shell commands");
	DLT_REGISTER_INJECTION_CALLBACK(shellContext, 0x1001, dlt_shell_injection_callback);
}