CURLOPT_PRIVATE(3)

1CURLOPT_PRIVATE(3)                  libcurl                 CURLOPT_PRIVATE(3)
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NAME

6       CURLOPT_PRIVATE - store a private pointer
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SYNOPSIS

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

14       Pass  a void * as parameter, pointing to data that should be associated
15       with this curl handle.  The pointer can subsequently be retrieved using
16       curl_easy_getinfo(3)  with  the CURLINFO_PRIVATE(3) option. libcurl it‐
17       self never does anything with this data.
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DEFAULT

20       NULL
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PROTOCOLS

23       All
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EXAMPLE

26       CURL *curl = curl_easy_init();
27       struct private secrets;
28       if(curl) {
29         struct private *extracted;
30         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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32         /* store a pointer to our private struct */
33         curl_easy_setopt(curl, CURLOPT_PRIVATE, &secrets);
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35         curl_easy_perform(curl);
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37         /* we can extract the private pointer again too */
38         curl_easy_getinfo(curl, CURLINFO_PRIVATE, &extracted);
39       }
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AVAILABILITY

42       Added in 7.10.3
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RETURN VALUE

45       Returns CURLE_OK if the option is supported,  and  CURLE_UNKNOWN_OPTION
46       if not.
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