CURLOPT_KEEP_SENDING_ON_ERROR(3) Library Functions Manual CURLOPT_KEEP_SENDING_ON_ERROR(3)

CURLOPT_KEEP_SENDING_ON_ERROR - keep sending on early HTTP response >= 300

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_KEEP_SENDING_ON_ERROR,
                          long keep_sending);

A long parameter set to 1 tells the library to keep sending the request body if the HTTP code returned is equal to or larger than 300. The default action would be to stop sending and close the stream or connection.

This option is suitable for manual NTLM authentication, i.e. if an application does not use CURLOPT_HTTPAUTH(3), but instead sets "Authorization: NTLM ..." headers manually using CURLOPT_HTTPHEADER(3).

Most applications do not need this option.

0, stop sending on error

HTTP

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode ret;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
    curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "sending data");
    curl_easy_setopt(curl, CURLOPT_KEEP_SENDING_ON_ERROR, 1L);
    ret = curl_easy_perform(curl);
  }
}

Along with HTTP. Added in 7.51.0.

Returns CURLE_OK if HTTP is enabled, and CURLE_UNKNOWN_OPTION if not.

CURLINFO_RESPONSE_CODE(3), CURLOPT_FAILONERROR(3), CURLOPT_HTTPHEADER(3)

2024-05-22 libcurl