curl/docs/libcurl/opts/CURLOPT_PRIVATE.3

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.TH CURLOPT_PRIVATE 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_PRIVATE \- store a private pointer
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PRIVATE, void *pointer);
.fi
.SH DESCRIPTION
Pass a void * as parameter, pointing to data that should be associated with
this curl handle.  The pointer can subsequently be retrieved using
\fIcurl_easy_getinfo(3)\fP with the CURLINFO_PRIVATE option. libcurl itself
never does anything with this data.
.SH DEFAULT
NULL
.SH PROTOCOLS
All
.SH EXAMPLE
.nf
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);
}
.fi
.SH AVAILABILITY
Added in 7.10.3
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR CURLOPT_VERBOSE "(3), " CURLOPT_STDERR "(3), "