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23 .TH CURLOPT_SSLVERSION 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
25 CURLOPT_SSLVERSION \- set preferred TLS/SSL version
27 #include <curl/curl.h>
29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLVERSION, long version);
31 Pass a long as parameter to control which version of SSL/TLS to attempt to
34 Use one of the available defines for this purpose. The available options are:
36 .IP CURL_SSLVERSION_DEFAULT
37 The default action. This will attempt to figure out the remote SSL protocol
38 version, i.e. either SSLv3 or TLSv1
39 .IP CURL_SSLVERSION_TLSv1
41 .IP CURL_SSLVERSION_SSLv2
43 .IP CURL_SSLVERSION_SSLv3
45 .IP CURL_SSLVERSION_TLSv1_0
46 TLSv1.0 (Added in 7.34.0)
47 .IP CURL_SSLVERSION_TLSv1_1
48 TLSv1.1 (Added in 7.34.0)
49 .IP CURL_SSLVERSION_TLSv1_2
50 TLSv1.2 (Added in 7.34.0)
53 CURL_SSLVERSION_DEFAULT
55 All TLS based protocols: HTTPS, FTPS, IMAPS, POP3, SMTPS etc.
59 SSLv2 is disabled by default since 7.18.1
61 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
63 .BR CURLOPT_USE_SSL "(3), " CURLOPT_HTTP_VERSION "(3), "