CURLINFO_TLS_SESSION(3) curl_easy_getinfo options CURLINFO_TLS_SESSION(3)
NAME
CURLINFO_TLS_SESSION - get TLS session info
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_TLS_SESSION,
struct curl_tlssessioninfo **session);
DESCRIPTION
This option has been superseded by CURLINFO_TLS_SSL_PTR(3) which was
added in 7.48.0. The only reason you would use this option instead is
if you could be using a version of libcurl earlier than 7.48.0.
This option is exactly the same as CURLINFO_TLS_SSL_PTR(3) except in
the case of OpenSSL. If the session backend is CURLSSLBACKEND_OPENSSL
the session internals pointer varies depending on the option:
CURLINFO_TLS_SESSION OpenSSL session internals is SSL_CTX *.
CURLINFO_TLS_SSL_PTR OpenSSL session internals is SSL *.
You can obtain an SSL_CTX pointer from an SSL pointer using OpenSSL
function SSL_get_SSL_CTX. Therefore unless you need compatibility with
older versions of libcurl use CURLINFO_TLS_SSL_PTR(3). Refer to that
document for more information.
PROTOCOLS
All TLS-based
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
struct curl_tlssessioninfo *tls;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
res = curl_easy_perform(curl);
curl_easy_getinfo(curl, CURLINFO_TLS_SESSION, &tls);
curl_easy_cleanup(curl);
}
AVAILABILITY
Added in 7.34.0, and supported OpenSSL, GnuTLS, NSS and gskit only up
until 7.48.0 was released.
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
SEE ALSO
curl_easy_getinfo(3), curl_easy_setopt(3), CURLINFO_TLS_SSL_PTR(3),
libcurl 7.81.0 November 04, 2020 CURLINFO_TLS_SESSION(3)
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