79 lines
3.0 KiB
Groff
79 lines
3.0 KiB
Groff
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.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLINFO_TLS_SESSION 3 "12 Sep 2015" libcurl libcurl
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.SH NAME
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CURLINFO_TLS_SESSION \- get TLS session info
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_TLS_SESSION,
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struct curl_tlssessioninfo **session);
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.SH DESCRIPTION
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\fBThis option has been superseded\fP by \fICURLINFO_TLS_SSL_PTR(3)\fP which
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was added in 7.48.0. The only reason you would use this option instead is if
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you could be using a version of libcurl earlier than 7.48.0.
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This option is exactly the same as \fICURLINFO_TLS_SSL_PTR(3)\fP except in the
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case of OpenSSL. If the session \fIbackend\fP is CURLSSLBACKEND_OPENSSL the
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session \fIinternals\fP pointer varies depending on the option:
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\fICURLINFO_TLS_SESSION(3)\fP OpenSSL session \fIinternals\fP is \fBSSL_CTX *\fP.
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\fICURLINFO_TLS_SSL_PTR(3)\fP OpenSSL session \fIinternals\fP is \fBSSL *\fP.
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You can obtain an \fBSSL_CTX\fP pointer from an SSL pointer using OpenSSL
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function \fISSL_get_SSL_CTX(3)\fP. Therefore unless you need compatibility
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with older versions of libcurl use \fICURLINFO_TLS_SSL_PTR(3)\fP. Refer to
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that document for more information.
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.SH PROTOCOLS
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All TLS-based
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.SH EXAMPLE
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.nf
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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struct curl_tlssessioninfo *tls;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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res = curl_easy_perform(curl);
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if(res)
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printf("error: %s\\n", curl_easy_strerror(res));
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curl_easy_getinfo(curl, CURLINFO_TLS_SESSION, &tls);
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curl_easy_cleanup(curl);
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}
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}
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.fi
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.SH AVAILABILITY
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Added in 7.34.0. Deprecated since 7.48.0 and supported OpenSSL, GnuTLS, and
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NSS only up until this version was released.
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR curl_easy_getinfo (3),
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.BR curl_easy_setopt (3),
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.BR CURLINFO_TLS_SSL_PTR (3)
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