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---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Title: CURLINFO_PRIVATE
Section: 3
Source: libcurl
See-also:
- CURLOPT_PRIVATE (3)
- curl_easy_getinfo (3)
- curl_easy_setopt (3)
Protocol:
- All
Added-in: 7.10.3
---
# NAME
CURLINFO_PRIVATE - get the private pointer
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRIVATE, char **private);
~~~
# DESCRIPTION
Pass a pointer to a char pointer to receive the pointer to the private data
associated with the curl handle (set with the CURLOPT_PRIVATE(3)).
Please note that for internal reasons, the value is returned as a char
pointer, although effectively being a 'void *'.
# %PROTOCOLS%
# EXAMPLE
~~~c
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
void *pointer = (void *)0x2345454;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
/* set the private pointer */
curl_easy_setopt(curl, CURLOPT_PRIVATE, pointer);
res = curl_easy_perform(curl);
/* extract the private pointer again */
res = curl_easy_getinfo(curl, CURLINFO_PRIVATE, &pointer);
if(res)
printf("error: %s\n", curl_easy_strerror(res));
curl_easy_cleanup(curl);
}
}
~~~
# %AVAILABILITY%
# RETURN VALUE
curl_easy_getinfo(3) returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
libcurl-errors(3).
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