CURLINFO_TLS_SESSION - get TLS session info
#include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_TLS_SESSION, struct curl_tlssessioninfo **session);
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*handle, CURLINFO_TLS_SESSION, struct curl_tlssessioninfo **session); DESCRIPTION This option has been superseded by CURLINFO_TLS_SSL_PTR(3) which was added in 7.48.0.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. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | web/curl | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO curl_easy_getinfo(3), curl_easy_setopt(3), CURLINFO_TLS_SSL_PTR(3), NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://curl.se/down- load/curl-7.83.1.tar.bz2. Further information about this software can be found on the open source community website at http://curl.haxx.se/. libcurl 7.83.1 November 04, 2020 CURLINFO_TLS_SESSION(3)