uip移植telnetd并添加自定义命令

刚刚移植了一下uip的telnetd,还是比较简单方便的.

首先添加文件,注意usershell是自己写的.

在tcp.c中添加tcp端口监听程序

添加#include "telnetd.h"

 void tcp_demo_appcall(void)
 {
     if(uip_conn->lport == HTONS(TCP_ClinetPort))
     {
         tcp_client_demo_appcall();
     }
     else if(uip_conn->lport == HTONS(80))
     {
         httpd_appcall();
     }
     else if(uip_conn->lport == HTONS(23))
     {
         telnetd_appcall();
     }
 }

在主函数中初始化

 telnetd_init();

//自定义shell

usershell.c

 //用户自定义shell
 #include "shell.h"
 #include "usershell.h"
 #include <string.h>
 #include "rtc.h"

 char printfbuff[64];

 //获取时间
 void SHELL_GetTime(char *pStr)
 {
     //RTC_Get();        //更新时间
     sprintf(printfbuff, "%02d:%02d:%02d\r\n",timer.hour, timer.min, timer.sec);
     shell_output("[获取时间成功]: ", printfbuff);
 }

 //获取日期
 void SHELL_GetDate(char *pStr)
 {
     //RTC_Get();        //更新时间
     sprintf(printfbuff, "%04d-%02d-%02d\r\n",timer.w_year, timer.w_month, timer.w_date);
     shell_output("[获取日期成功]: ", printfbuff);
 }

usershell.h

 #ifndef __USER_SHELL_H__
 #define __USER_SHELL_H__




 void SHELL_GetTime(char *pStr); //获取时间
 void SHELL_GetDate(char *pStr); 获取日期


 #endif /* __USER_SHELL_H__ */

修改telnetd.h

 #ifndef __TELNETD_H__
 #define __TELNETD_H__

 #include "uipopt.h"

 void telnetd_init(void);
 void telnetd_appcall(void);

 #ifndef TELNETD_CONF_LINELEN
 #define TELNETD_CONF_LINELEN 40
 #endif
 #ifndef TELNETD_CONF_NUMLINES
 #define TELNETD_CONF_NUMLINES 16
 #endif

 struct telnetd_state {
   char *lines[TELNETD_CONF_NUMLINES];
   char buf[TELNETD_CONF_LINELEN];
   char bufptr;
   u8_t numsent;
   u8_t state;
 };

 //typedef struct telnetd_state uip_tcp_appstate_t;

 //#ifndef UIP_APPCALL
 //#define UIP_APPCALL     telnetd_appcall
 //#endif

 #endif /* __TELNETD_H__ */

添加

 void telnetd_init(void);

在shell.c中添加自定义命令支持

 static void
 help(char *str)
 {
   shell_output("Available commands:", "");
   shell_output("stats   - show network statistics", "");
   shell_output("conn    - show TCP connections", "");
   shell_output("help, ? - show help", "");
   shell_output("exit    - exit shell", "");
     shell_output("time?    - 获取当前系统时间", "");
     shell_output("date?,   - 获取当前系统日期", "");
 }
 /*---------------------------------------------------------------------------*/
 static void
 unknown(char *str)
 {
   if(strlen(str) > 0) {
     shell_output("Unknown command: ", str);
   }
 }
 /*---------------------------------------------------------------------------*/
 static struct ptentry parsetab[] =
   {{"stats", help},
    {"conn", help},
    {"help", help},
    {"exit", shell_quit},
    {"?", help},
     {"time?", SHELL_GetTime},
     {"date?", SHELL_GetDate},

    /* Default action */
    {NULL, unknown}};
 /*---------------------------------------------------------------------------*/

添加命令显示

 shell_output("time?    - 获取当前系统时间", "");
 shell_output("date?,   - 获取当前系统日期", "");

命令列表

 {"time?", SHELL_GetTime},
 {"date?", SHELL_GetDate},

执行之后的效果