由于telnet.c问题，telnet身份验证失败

为什么不改变在代码文件开始时定义的“CONDATABATE”结构中的值。苏珊



      以下为原文

    Why not just change the values in the 'configData' structure that is defined at the start of the code file.
Susan

如果我在结构中设置默认值，那么它也不起作用。而且，我想在上面提到的运行时更改用户名和密码。



      以下为原文

    If I have setted default value in structure, then also it doesn't work. And also, I want to change username and password in runtime as I mentioned above.

是的，我记得我也遇到过这种情况。我按照苏珊的建议做了…



      以下为原文

    Yeah, I remember I ran into this too. I did as Susan suggests...

但是，这限制了我使用用户名和密码的固定值。不是吗？



      以下为原文

    But, that restrict me to use fixed value of user name and password. Isn't it?

不，如果你将这些变量定义为2个全局字符串



      以下为原文

    No, if you change those #defines to 2 global strings

根本不需要，你可以改变代码结构中的任何值，但是你也需要考虑MCU将要运行的上下文。通常，微控制器运行在嵌入式系统中，停止和启动它们的唯一方法是关掉电源（有意地或作为故障情况的一部分）。因此，您还需要考虑当设备重新启动时会发生什么。如果用户名和密码是硬编码的（即，当“γ”定义了您想要离开）时，设备将总是以已知状态启动。这可以是一件好事，因为你知道如何访问它。但是如果用户名和密码可以改变（大概是通过Telnet链接或其他手段输入的一些命令），那么你将需要保存它们在某处，以便它们可以在下一次上电时重置，或者你不会是AB。再次连接。如果你沿着这条路径走下去，你就需要一个地方来存储更新的用户名/密码字符串。苏珊



      以下为原文

   
Not at all - you can change the values in that data structure any where in your code.
However you also need to think about the context the MCU is going to run in. Typically microcontrollers run in embedded systems where the only way to stop and start them is to turn off the power (either intentionally or as part of a failure situation). Therefore you need to also think about what happens when the device restarts.
If the username and password are hard coded (i.e. with the #defines that you want to get away from) then the device will always start up in a known state. This can be a good thing because you know how to access it.
However if the username and password can be changed (presumably by some commands entered via the telnet link or some other means) then you will need to save them somewhere so that they can be reset on the next power-up or you will not be able to connect again. If you go down this path then you will need a place to store the updated username/password strings.
Susan