curl/docs/libcurl/opts/CURLINFO_PRIVATE.md
Daniel Stenberg 8442c24c9a
CURLINFO: remove 'get' and 'get the' from each short desc
The short descriptions describe the data each info retrieves. The info
itself does not 'get' the data.

This simplifies and shortens the descriptions and make them more
consistent.

Closes #19406
2025-11-08 17:05:55 +01:00

1.4 KiB

c SPDX-License-Identifier Title Section Source See-also Protocol Added-in
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. curl CURLINFO_PRIVATE 3 libcurl
CURLOPT_PRIVATE (3)
curl_easy_getinfo (3)
curl_easy_setopt (3)
All
7.10.3

NAME

CURLINFO_PRIVATE - private pointer

SYNOPSIS

#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

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).