//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);
}
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