查询版本号时打印相关信息

//版本查询

if(strncmp((void*)RecvLanBuff, "check version", 13) == 0)

{

remoteip.addr = dADDR.addr;

remoteport = dPort;

memset(RecvLanBuff, 0, sizeof(RecvLanBuff));

buf = pbuf_alloc(PBUF_TRANSPORT, 1400, PBUF_ROM); //其实这里并申请不到内存  

buf->payload = RecvLanBuff; //将接收缓存用于发送缓存

strcat((void *)RecvLanBuff, SWVERSION); //填入版本号 

if(dacu_activate == ACTIVATE_ON)

strcat((void *)RecvLanBuff, "dacu_activate:ACTIVATE_ON\n\r"); 

else if(dacu_activate == ACTIVATE_OFF)

 strcat((void *)RecvLanBuff, "dacu_activate:ACTIVATE_OFF\n\r"); 

else if(dacu_activate == ACTIVATE_FREE)

strcat((void *)RecvLanBuff, "dacu_activate:ACTIVATE_FREE\n\r"); 

 buf->len = buf->tot_len = strlen(buf->payload);

 udp_sendto(upcb,buf,&dADDR,dPort);  //这个函数发送数据包时，指定目的IP地址  

pbuf_free(buf);

}