Thread: Determining HTTP Header?

If you understand how HTTP works it would be very clear. Note that you'll actually need to understand HTTP in great depth to make a proxy server (at least one that follows the HTTP standards) -- see the RFC.

Yeah, thank you zacs7.

Btw the structure of HTTP connection is:

Code:

Request header: header + "\r\n"
Response header: header + "\r\n" + content (if any)

Well, I discovered that internet/network programming is so interesting.
It's complex but standarized.

But I just get confused when different browser sends different thing of request.

For example:
From http:// username : password @ server
typed in address bar.

Firefox sent:

Code:

GET http://server/ HTTP/1.1
Host: http://server

Opera sent:

Code:

GET http://server/ HTTP/1.1
Host: http://server:80 (extra useful? port)
Authentication: Basic aaBBccDDee (plus this)

Also they act different when we are inputting https:// address.


Btw, they said C is for network programming. But where is the std* API for network?

Should I use WSA* API in Windows?

Wow, your reply is very-very help me rags_to_riches...

Thank you.

Btw I think "standard" is something like stdlib.h, stdio.h, time.h that provided portability and included in every C compilers ^_^ ...

Notes:
I found that Internet Explorer doesn't suport proxies for FTP protocols.

Btw I think "standard" is something like stdlib.h, stdio.h, time.h that provided portability and included in every C compilers ^_^ ...

There is no support for network programming in the C standard library. On the other hand, sockets programming is at least a de facto standard.