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CURLOPT_S...NE_DEFAULT(3)  Library Functions Manual  CURLOPT_S...NE_DEFAULT(3)

NAME
       CURLOPT_SSLENGINE_DEFAULT - make	SSL engine default

SYNOPSIS
       #include	<curl/curl.h>

       CURLcode	curl_easy_setopt(CURL *handle, CURLOPT_SSLENGINE_DEFAULT, long val);

DESCRIPTION
       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).

DEFAULT
       None

PROTOCOLS
       This functionality affects all TLS based	protocols: HTTPS, FTPS,	IMAPS,
       POP3S, SMTPS etc.

       This option works only with the following TLS backends: OpenSSL

EXAMPLE
       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);
	 }
       }

AVAILABILITY
       Added in	curl 7.9.3

RETURN VALUE
       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	 back-
       end.

       CURLE_UNKNOWN_OPTION - Option not recognized.

       CURLE_OUT_OF_MEMORY - Insufficient heap space.

SEE ALSO
       CURLOPT_SSLCERT(3), CURLOPT_SSLENGINE(3)

libcurl				  2025-06-03	     CURLOPT_S...NE_DEFAULT(3)

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