1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Title: CURLINFO_PRIVATE 5Section: 3 6Source: libcurl 7See-also: 8 - CURLOPT_PRIVATE (3) 9 - curl_easy_getinfo (3) 10 - curl_easy_setopt (3) 11Protocol: 12 - All 13--- 14 15# NAME 16 17CURLINFO_PRIVATE - get the private pointer 18 19# SYNOPSIS 20 21~~~c 22#include <curl/curl.h> 23 24CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRIVATE, char **private); 25~~~ 26 27# DESCRIPTION 28 29Pass a pointer to a char pointer to receive the pointer to the private data 30associated with the curl handle (set with the CURLOPT_PRIVATE(3)). 31Please note that for internal reasons, the value is returned as a char 32pointer, although effectively being a 'void *'. 33 34# EXAMPLE 35 36~~~c 37int main(void) 38{ 39 CURL *curl = curl_easy_init(); 40 if(curl) { 41 CURLcode res; 42 void *pointer = (void *)0x2345454; 43 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin"); 44 45 /* set the private pointer */ 46 curl_easy_setopt(curl, CURLOPT_PRIVATE, pointer); 47 res = curl_easy_perform(curl); 48 49 /* extract the private pointer again */ 50 res = curl_easy_getinfo(curl, CURLINFO_PRIVATE, &pointer); 51 52 if(res) 53 printf("error: %s\n", curl_easy_strerror(res)); 54 55 curl_easy_cleanup(curl); 56 } 57} 58~~~ 59 60# AVAILABILITY 61 62Added in 7.10.3 63 64# RETURN VALUE 65 66Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. 67
