如何从C中的HTTP头中提取数据？ [英] How to extract data from HTTP header in C?
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问题描述
今天我问的是如何从C（不是C ++）的 recv（）中的接收缓冲区中提取数据部分。
Today I am asking how to extract the data section from the received buffer in my recv() in C (not C++).
我只需要一些建议，我将如何获得
I just need some suggestions, how would I get
HTTP/1.1 200 OK\r\n
Date: Mon, 23 May 2005 22:38:34 GMT\r\n
Server: Apache/1.3.3.7 (Unix) (Red-Hat/Linux)\r\n
Last-Modified: Wed, 08 Jan 2003 23:11:55 GMT\r\n
ETag: "3f80f-1b6-3e1cb03b"\r\n
Content-Type: text/html; charset=UTF-8\r\n
Content-Length: 131\r\n
Connection: close\r\n
\r\n
<html>
<head>
<title>An Example Page</title>
</head>
<body>
Hello World, this is a very simple HTML document.
</body>
</html>
上述标题的一部分？它存储在我的缓冲区中，我特意只想剖析数据（页面的源代码）。有什么想法？
The part of the above header? It is stored in my buffer, I specifically just want to dissect the data (the source code of the page). Any ideas?
推荐答案
标题以 \\\\\\\ n结尾。如果整个响应在接收缓冲区中并且您在响应结束时放置了'\0'，那么您可以使用以下代码来查找数据部分
The header ends with \r\n\r\n. If the whole response is in the receive buffer and you put a '\0' at the end of the response, then you can use the following code to find the start of the data section
char *data = strstr( buffer, "\r\n\r\n" );
if ( data != NULL )
{
data += 4;
// do something with the data
}
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