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61df5f466c
- curl_ntlm_core, smtp, schannel: fix comments.
- curl_setup.h: fix to undef before define.
- tool_doswin, server/sockfilt: reduce variables scopes.
- tool_doswin: drop an interim variable.
- windows: replace `SOCKET_ERROR` with `0` to align with rest of code.
- libssh2: rename variable to align with rest of code.
- gtls, unit1398: use `#if 0`.
- curl_trc.h, curlx/inet_ntop.h: add missing parentheses in macro
expressions.
- ldap.c: set empty macro to `do {} while(0)`.
- examples/crawler: rename a non-CURLcode `result` variable.
- CURLINFO_TLS_SESSION: drop stray colon.
- add `const` to casts where missing.
- drop unnecessary parentheses.
- fix indent.
- quote style.
- comment style.
- whitespace, newlines, fold/unfold.
Closes #20554
94 lines
2.3 KiB
Markdown
94 lines
2.3 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLINFO_TLS_SESSION
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_TLS_SSL_PTR (3)
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- curl_easy_getinfo (3)
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- curl_easy_setopt (3)
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Protocol:
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- TLS
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TLS-backend:
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- OpenSSL
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- GnuTLS
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Added-in: 7.34.0
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---
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# NAME
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CURLINFO_TLS_SESSION - TLS session info
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# SYNOPSIS
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~~~c
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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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~~~
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# DESCRIPTION
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**This option has been superseded** by CURLINFO_TLS_SSL_PTR(3).
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This option is exactly the same as CURLINFO_TLS_SSL_PTR(3) except in the case
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of OpenSSL and wolfSSL. If the session *backend* is CURLSSLBACKEND_OPENSSL the
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session *internals* pointer varies depending on the option:
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## OpenSSL
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CURLINFO_TLS_SESSION(3) OpenSSL session *internals* is **SSL_CTX ***.
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CURLINFO_TLS_SSL_PTR(3) OpenSSL session *internals* is **SSL ***.
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You can obtain an **SSL_CTX** pointer from an SSL pointer using OpenSSL
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function *SSL_get_SSL_CTX(3)*. Therefore unless you need compatibility
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with older versions of libcurl use CURLINFO_TLS_SSL_PTR(3). Refer to
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that document for more information.
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## wolfSSL
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CURLINFO_TLS_SESSION(3) wolfSSL session *internals* is **WOLFSSL_CTX ***.
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CURLINFO_TLS_SSL_PTR(3) wolfSSL session *internals* is **WOLFSSL ***.
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You can obtain an **WOLFSSL_CTX** pointer from an SSL pointer using wolfSSL
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function *wolfSSL_get_SSL_CTX(3)*. Therefore unless you need compatibility
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with older versions of libcurl use CURLINFO_TLS_SSL_PTR(3). Refer to
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that document for more information.
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# %PROTOCOLS%
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# EXAMPLE
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~~~c
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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 result;
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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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result = curl_easy_perform(curl);
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if(result != CURLE_OK)
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printf("error: %s\n", curl_easy_strerror(result));
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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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~~~
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# DEPRECATED
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Deprecated since 7.48.0
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# %AVAILABILITY%
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# RETURN VALUE
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curl_easy_getinfo(3) returns a CURLcode indicating success or error.
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CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
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libcurl-errors(3).
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