CURLOPT_PRIVATE(3)

NAME
CURLOPT_PRIVATE - store a private pointer

SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PRIVATE, void *pointer);

DESCRIPTION
Pass a void * as parameter, pointing to data that should be associated with this curl handle. The pointer can subsequently be retrieved using curl_easy_getinfo(3) with the CURLINFO_PRIVATE option. libcurl itself never does anything with this data.

DEFAULT
NULL

PROTOCOLS
All

EXAMPLE
CURL *curl = curl_easy_init();
struct private secrets;
if(curl) {
  struct private *extracted;
  curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
  /* store a pointer to our private struct */
  curl_easy_setopt(curl, CURLOPT_PRIVATE, &secrets);
  curl_easy_perform(curl);
  /* we can extract the private pointer again too */
  curl_easy_getinfo(curl, CURLINFO_PRIVATE, &extracted);
}

AVAILABILITY
Added in 7.10.3

RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO
CURLOPT_VERBOSE(3), CURLOPT_STDERR(3),