如何获得连接的客户端的IP地址? [英] How can I get a connected client's IP address?

问题描述

如果我有一个超级简单的线程式TCP服务器，如:

If I have a Super Simple Threaded TCP Server like:

USING: accessors io io.encodings.utf8 io.servers 
    io.sockets kernel prettyprint threads ;

: handle-client ( -- )
   remote-address . ;

: <my-server> ( -- threaded-server )
    utf8 <threaded-server>
        "server" >>name
        1234 >>insecure
        [ handle-client ] >>handler ;

: start-my-server ( -- )
    <my-server> [ start-server ] in-thread start-server drop ;

这只会将文本remote-address打印到客户端，这对非常有用很有帮助.这是因为remote-address是一个符号...它的值在哪里? remote-address的文档说:

This will just print the text remote-address to the client, which is very helpful. That's because remote-address is a symbol... where's its value? The documentation for remote-address says:

包含当前客户端连接的地址说明符的变量.

Variable holding the address specifier of the current client connection.

<threaded-server>上的文档说:

线程服务器实例的处理程序插槽应设置为 处理客户端连接的报价.客户端处理程序在 自己的线程，具有以下变量反弹:

The handler slot of a threaded server instance should be set to a quotation which handles client connections. Client handlers are run in their own thread, with the following variables rebound:

•输入流
•输出流
•本地地址
•远程地址
•线程服务器

• input-stream
• output-stream
• local-address
• remote-address
• threaded-server

太好了！这意味着我可以获取客户的IP.

Great! That means I can get at a client's IP.

然后将其链接到似乎相关的地址说明符 ，但并未明确说明如何从remote-address获取数据.

Then it links to Address specifiers, which seems to be related, but doesn't clearly explain how to get data from remote-address.

如何获取客户的IP地址?

How can I get a client's IP address?

推荐答案

@fede s. nailed it in the comments: get will take a variable and get its value.

所以我从问题中得到的代码变为:

So my code from the question becomes:

: handle-client ( -- )
   remote-address get host>> print flush ;

: <my-server> ( -- threaded-server )
    utf8 <threaded-server>
        "server" >>name
        1234 >>insecure
        [ handle-client ] >>handler ;

: start-my-server ( -- )
    <my-server> [ start-server ] in-thread start-server drop ;

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