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CURLOPT_SSL_SESSIONID_CACHE(3)      libcurl     CURLOPT_SSL_SESSIONID_CACHE(3)


NAME

       CURLOPT_SSL_SESSIONID_CACHE - use the SSL session-ID cache


SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_SESSIONID_CACHE,
                                long enabled);


DESCRIPTION

       Pass a long set to 0 to disable libcurl's use of SSL session-ID
       caching. Set this to 1 to enable it. By default all transfers are done
       using the cache enabled. While nothing ever should get hurt by
       attempting to reuse SSL session-IDs, there seem to be or have been
       broken SSL implementations in the wild that may require you to disable
       this in order for you to succeed.


DEFAULT

       1


PROTOCOLS

       All TLS-based


EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
         /* switch off session-id use! */
         curl_easy_setopt(curl, CURLOPT_SSL_SESSIONID_CACHE, 0L);
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }


AVAILABILITY

       Added in 7.16.0


RETURN VALUE

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


SEE ALSO

       CURLOPT_DNS_CACHE_TIMEOUT(3), CURLOPT_SSLVERSION(3),

ibcurl 8.1.2                    April 26, 2023  CURLOPT_SSL_SESSIONID_CACHE(3)

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