CURLOPTMAXREDIRS

CURLOPT_MAXREDIRS is a constant used in the libcurl library, a popular open-source software project for transferring data with URLs. It is an option that can be set using the curl_easy_setopt function to specify the maximum number of redirections to follow for a given URL. When a URL redirects to another URL, the client must follow the redirection to reach the final destination. The CURLOPT_MAXREDIRS option allows developers to control how many such redirections the client will follow before giving up.

By default, libcurl follows a limited number of redirections to prevent infinite loops and potential security risks. The CURLOPT_MAXREDIRS option enables developers to customize this behavior according to their specific requirements. For example, setting CURLOPT_MAXREDIRS to 0 disables redirection following entirely, while setting it to a positive integer specifies the maximum number of redirections to follow.

It is important to note that the CURLOPT_MAXREDIRS option only applies to HTTP and HTTPS protocols. Other protocols, such as FTP, do not support redirections in the same way. Additionally, the CURLOPT_MAXREDIRS option does not affect the behavior of the client when encountering non-redirection-based errors, such as 404 Not Found or 500 Internal Server Error.

In summary, CURLOPT_MAXREDIRS is a useful option in the libcurl library that allows developers to control the maximum number of redirections to follow for a given URL. By setting this option appropriately, developers can customize the behavior of their libcurl-based applications to better suit their specific needs.