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CURLINFO_TLS_SESSION(3)             libcurl            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This option has been superseded by CURLINFO_TLS_SSL_PTR(3) which was added in 7.48.0.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(3) OpenSSL session internals is SSL_CTX *. CURLINFO_TLS_SSL_PTR(3) OpenSSL session internals is SSL *. You can obtain an SSL_CTX pointer from an SSL pointer using OpenSSL function SSL_get_SSL_CTX(3). 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. Deprecated since 7.48.0 and supported OpenSSL, GnuTLS, NSS and gskit only up until this version 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), ibcurl 8.1.2 April 26, 2023 CURLINFO_TLS_SESSION(3)

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