如何检索表单“POST"通过用 C 编写的 cgi-bin 程序获取数据 [英] How to retrieve form "POST" data via cgi-bin program written in C

问题描述

我正在尝试使用用 C 编写的程序从 html 表单中检索 POST 数据.

I am trying to retrieve POST data from html form using program written in C.

目前我正在使用:

char *formdata = getenv("QUERY_STRING");
if(formdata == NULL) /* no data retrieved */

这似乎适用于表单GET"方法，但不适用于POST"方法.如何检索 POST 数据?

This seems to be working fine with form "GET" method but not with "POST" method. How do I retrieve POST data?

推荐答案

POST 数据附加到请求标头，在双换行符之后.在 CGI-BIN 环境中，您从 STDIN 读取它.

POST data is appended to the request header, after a double newline. In a CGI-BIN environment, you read it from STDIN.

请注意，服务器不需要在 POST 数据的末尾向您发送 EOF 字符(或某些终止指示符).永远不要读取超过 CONTENT_LENGTH 个字节.

Be warned that the server IS NOT REQUIRED to send you an EOF character (or some termination indicator) at the end of the POST data. Never read more than CONTENT_LENGTH bytes.

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