.\" generated by cd2nroff 0.1 from CURLOPT_SSLENGINE_DEFAULT.md
.TH CURLOPT_SSLENGINE_DEFAULT 3 "2024-04-19" libcurl
.SH NAME
CURLOPT_SSLENGINE_DEFAULT \- make SSL engine default
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLENGINE_DEFAULT, long val);
.fi
.SH 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 \fICURLOPT_SSLENGINE(3)\fP.
.SH DEFAULT
None
.SH PROTOCOLS
All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.

This option works only with the following TLS backends:
OpenSSL
.SH EXAMPLE
.nf
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);
  }
}
.fi
.SH AVAILABILITY
Only if the SSL backend is OpenSSL built with engine support.
.SH 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 backend.

CURLE_UNKNOWN_OPTION \- Option not recognized.

CURLE_OUT_OF_MEMORY \- Insufficient heap space.
.SH SEE ALSO
.BR CURLOPT_SSLCERT (3),
.BR CURLOPT_SSLENGINE (3)