| /* | |
| FreeRTOS V9.0.0rc2 - Copyright (C) 2016 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 if( ( cInChar >= ' ' ) && ( cInChar <= 'z' ) ) | |
| { | |
| /* 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 ); | |
| } | |