从用C文件名获取MIME类型 [英] Get MIME type from filename in C

问题描述

我想从使用C.文件名的MIME类型
有没有办法做到这一点，而无需使用包含MIME类型和文件扩展名文本文件（即Apache的文件的mime.types ）？

I want to get the MIME type from a filename using C. Is there a way to do this without using a textfile containing MIME types and file extensions (i.e. Apache's file mime.types)?

也许有一个函数来获取使用文件名的MIME类型？我宁可不使用文件扩展名，如果我没有。

Maybe there is a function to get the MIME type using the filename? I rather not use the file extension if I don't have to.

推荐答案

如果有办法做到这一点，阿帕奇不会需要它的mime.types 文件！

If there was a way to do it, Apache wouldn't need its mime.types file!

表在某处。这是不是在由您code解析一个单独的文件，或者很难coded到你的软件。前者是更好的解决方案更清晰...

The table has to be somewhere. It's either in a separate file which is parsed by your code, or it's hard coded into your software. The former is clearer the better solution...

它也可以通过检查该文件的内容，即报头字段，数据结构等，这是由使用的方法文件（1）<在MIME类型的文件的猜测/ code>程序以及通过Apache的 mod_mime_magic模块。在这两种情况下，他们仍然使用一个单独的文本文件来存储查找规则，而不是有任何的细节，程序本身的硬codeD。

It's also possible to guess at the MIME type of a file by examining the content of the file, i.e. header fields, data structures, etc. This is the approach used by the file(1) program and also by Apache's mod_mime_magic. In both cases they still use a separate text file to store the lookup rules rather than have any details hard-coded in the program itself.

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