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CURLINFO_PRIVATE(3) Library Functions Manual CURLINFO_PRIVATE(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 This functionality affects all supported protocols EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode result; 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); result = curl_easy_perform(curl); /* extract the private pointer again */ result = curl_easy_getinfo(curl, CURLINFO_PRIVATE, &pointer); if(result != CURLE_OK) printf("error: %s\n", curl_easy_strerror(result)); curl_easy_cleanup(curl); } } AVAILABILITY Added in curl 7.10.3 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). SEE ALSO CURLOPT_PRIVATE(3), curl_easy_getinfo(3), curl_easy_setopt(3) libcurl 2026-06-11 CURLINFO_PRIVATE(3)
NAME | SYNOPSIS | DESCRIPTION | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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