/* | |
FreeRTOS V9.0.1 - Copyright (C) 2017 Real Time Engineers Ltd. | |
All rights reserved | |
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
This file is part of the FreeRTOS distribution. | |
FreeRTOS is free software; you can redistribute it and/or modify it under | |
the terms of the GNU General Public License (version 2) as published by the | |
Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception. | |
*************************************************************************** | |
>>! NOTE: The modification to the GPL is included to allow you to !<< | |
>>! distribute a combined work that includes FreeRTOS without being !<< | |
>>! obliged to provide the source code for proprietary components !<< | |
>>! outside of the FreeRTOS kernel. !<< | |
*************************************************************************** | |
FreeRTOS 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. Full license text is available on the following | |
link: http://www.freertos.org/a00114.html | |
*************************************************************************** | |
* * | |
* FreeRTOS provides completely free yet professionally developed, * | |
* robust, strictly quality controlled, supported, and cross * | |
* platform software that is more than just the market leader, it * | |
* is the industry's de facto standard. * | |
* * | |
* Help yourself get started quickly while simultaneously helping * | |
* to support the FreeRTOS project by purchasing a FreeRTOS * | |
* tutorial book, reference manual, or both: * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading | |
the FAQ page "My application does not run, what could be wrong?". Have you | |
defined configASSERT()? | |
http://www.FreeRTOS.org/support - In return for receiving this top quality | |
embedded software for free we request you assist our global community by | |
participating in the support forum. | |
http://www.FreeRTOS.org/training - Investing in training allows your team to | |
be as productive as possible as early as possible. Now you can receive | |
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers | |
Ltd, and the world's leading authority on the world's leading RTOS. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. | |
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. | |
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High | |
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS | |
licenses offer ticketed support, indemnification and commercial middleware. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
1 tab == 4 spaces! | |
*/ | |
/* Standard includes. */ | |
#include "stdlib.h" | |
#include "string.h" | |
/* lwIP core includes */ | |
#include "lwip/opt.h" | |
#include "lwip/sockets.h" | |
/* FreeRTOS includes. */ | |
#include "FreeRTOS.h" | |
#include "task.h" | |
/* Utils includes. */ | |
#include "FreeRTOS_CLI.h" | |
/* Dimensions the buffer into which input characters are placed. */ | |
#define cmdMAX_INPUT_SIZE 100 | |
/* Dimensions the buffer into which string outputs can be placed. */ | |
#define cmdMAX_OUTPUT_SIZE 1024 | |
/*-----------------------------------------------------------*/ | |
void vBasicSocketsCommandInterpreterTask( void *pvParameters ) | |
{ | |
long lSocket, lClientFd, lBytes, lAddrLen = sizeof( struct sockaddr_in ), lInputIndex; | |
struct sockaddr_in sLocalAddr; | |
struct sockaddr_in client_addr; | |
const char *pcWelcomeMessage = "FreeRTOS command server - connection accepted.\r\nType Help to view a list of registered commands.\r\n\r\n>"; | |
char cInChar; | |
static char cInputString[ cmdMAX_INPUT_SIZE ], cOutputString[ cmdMAX_OUTPUT_SIZE ]; | |
portBASE_TYPE xReturned; | |
extern void vRegisterSampleCLICommands( void ); | |
( void ) pvParameters; | |
/* Register the standard CLI commands. */ | |
vRegisterSampleCLICommands(); | |
lSocket = lwip_socket(AF_INET, SOCK_STREAM, 0); | |
if( lSocket >= 0 ) | |
{ | |
memset((char *)&sLocalAddr, 0, sizeof(sLocalAddr)); | |
sLocalAddr.sin_family = AF_INET; | |
sLocalAddr.sin_len = sizeof(sLocalAddr); | |
sLocalAddr.sin_addr.s_addr = htonl(INADDR_ANY); | |
sLocalAddr.sin_port = ntohs( ( ( unsigned short ) 23 ) ); | |
if( lwip_bind( lSocket, ( struct sockaddr *) &sLocalAddr, sizeof( sLocalAddr ) ) < 0 ) | |
{ | |
lwip_close( lSocket ); | |
vTaskDelete( NULL ); | |
} | |
if( lwip_listen( lSocket, 20 ) != 0 ) | |
{ | |
lwip_close( lSocket ); | |
vTaskDelete( NULL ); | |
} | |
for( ;; ) | |
{ | |
lClientFd = lwip_accept(lSocket, ( struct sockaddr * ) &client_addr, ( u32_t * ) &lAddrLen ); | |
if( lClientFd > 0L ) | |
{ | |
lwip_send( lClientFd, pcWelcomeMessage, strlen( ( const char * ) pcWelcomeMessage ), 0 ); | |
lInputIndex = 0; | |
memset( cInputString, 0x00, cmdMAX_INPUT_SIZE ); | |
do | |
{ | |
lBytes = lwip_recv( lClientFd, &cInChar, sizeof( cInChar ), 0 ); | |
if( lBytes > 0L ) | |
{ | |
if( cInChar == '\n' ) | |
{ | |
/* The input string has been terminated. Was the | |
input a quit command? */ | |
if( strcmp( "quit", ( const char * ) cInputString ) == 0 ) | |
{ | |
/* Set lBytes to 0 to close the connection. */ | |
lBytes = 0L; | |
} | |
else | |
{ | |
/* The input string was not a quit command. | |
Pass the string to the command interpreter. */ | |
do | |
{ | |
/* Get the next output string from the command interpreter. */ | |
xReturned = FreeRTOS_CLIProcessCommand( cInputString, cOutputString, cmdMAX_INPUT_SIZE ); | |
lwip_send( lClientFd, cOutputString, strlen( ( const char * ) cOutputString ), 0 ); | |
} while( xReturned != pdFALSE ); | |
/* All the strings generated by the input | |
command have been sent. Clear the input | |
string ready to receive the next command. */ | |
lInputIndex = 0; | |
memset( cInputString, 0x00, cmdMAX_INPUT_SIZE ); | |
lwip_send( lClientFd, "\r\n>", strlen( "\r\n>" ), 0 ); | |
} | |
} | |
else | |
{ | |
if( cInChar == '\r' ) | |
{ | |
/* Ignore the character. */ | |
} | |
else if( cInChar == '\b' ) | |
{ | |
/* Backspace was pressed. Erase the last | |
character in the string - if any. */ | |
if( lInputIndex > 0 ) | |
{ | |
lInputIndex--; | |
cInputString[ lInputIndex ] = '\0'; | |
} | |
} | |
else | |
{ | |
/* A character was entered. Add it to the string | |
entered so far. When a \n is entered the complete | |
string will be passed to the command interpreter. */ | |
if( lInputIndex < cmdMAX_INPUT_SIZE ) | |
{ | |
cInputString[ lInputIndex ] = cInChar; | |
lInputIndex++; | |
} | |
} | |
} | |
} | |
} while( lBytes > 0L ); | |
lwip_close( lClientFd ); | |
} | |
} | |
} | |
/* Will only get here if a listening socket could not be created. */ | |
vTaskDelete( NULL ); | |
} | |