CURLOPT_SSLENGINE_DEFAULT(3) | Introduction to Library Functions | CURLOPT_SSLENGINE_DEFAULT(3) |
CURLOPT_SSLENGINE_DEFAULT - make SSL engine default
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLENGINE_DEFAULT, long val);
Pass a long set to 1 to make the already specified crypto engine the default for (asymmetric) crypto operations.
This option has no effect unless set after CURLOPT_SSLENGINE(3).
None
This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
This option works only with the following TLS backends: OpenSSL
int main(void) {
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
curl_easy_setopt(curl, CURLOPT_SSLENGINE, "dynamic");
curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1L);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
} }
Added in curl 7.9.3
CURLE_OK - Engine set as default.
CURLE_SSL_ENGINE_SETFAILED - Engine could not be set as default.
CURLE_NOT_BUILT_IN - Option not built in, OpenSSL is not the SSL backend.
CURLE_UNKNOWN_OPTION - Option not recognized.
CURLE_OUT_OF_MEMORY - Insufficient heap space.
2025-05-02 | libcurl |