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CURLINFO_SSL_ENGINES(3)

curl_easy_getinfo options

CURLINFO_SSL_ENGINES(3)

NAME

CURLINFO_SSL_ENGINES - get an slist of OpenSSL crypto-engines

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SSL_ENGINES,
struct curl_slist **engine_list);

DESCRIPTION

Pass the address of a 'struct curl_slist *' to receive a linked-list of OpenSSL crypto-engines supported. Note that engines are normally implemented in separate dynamic libraries. Hence not all the returned engines may be available at runtime. NOTE: you must call curl_slist_free_all(3) on the list pointer once you are done with it, as libcurl will not free the data for you.

PROTOCOLS

All TLS based ones.

EXAMPLE

CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
struct curl_slist *engines;
res = curl_easy_getinfo(curl, CURLINFO_SSL_ENGINES, &engines);
if((res == CURLE_OK) && engines) {
/* we have a list, free it when done using it */
curl_slist_free_all(engines);
}

curl_easy_cleanup(curl);
}

AVAILABILITY

Added in 7.12.3. Available in OpenSSL builds with "engine" support.

RETURN VALUE

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