| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697 |
- .\" **************************************************************************
- .\" * _ _ ____ _
- .\" * Project ___| | | | _ \| |
- .\" * / __| | | | |_) | |
- .\" * | (__| |_| | _ <| |___
- .\" * \___|\___/|_| \_\_____|
- .\" *
- .\" * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
- .\" *
- .\" * This software is licensed as described in the file COPYING, which
- .\" * you should have received as part of this distribution. The terms
- .\" * are also available at https://curl.haxx.se/docs/copyright.html.
- .\" *
- .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- .\" * copies of the Software, and permit persons to whom the Software is
- .\" * furnished to do so, under the terms of the COPYING file.
- .\" *
- .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- .\" * KIND, either express or implied.
- .\" *
- .\" **************************************************************************
- .\"
- .TH CURLOPT_PROXY_SSLVERSION 3 "January 10, 2018" "libcurl 7.61.1" "curl_easy_setopt options"
- .SH NAME
- CURLOPT_PROXY_SSLVERSION \- set preferred proxy TLS/SSL version
- .SH SYNOPSIS
- #include <curl/curl.h>
- CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLVERSION, long version);
- .SH DESCRIPTION
- Pass a long as parameter to control which version of SSL/TLS to attempt to use
- when connecting to an HTTPS proxy.
- Use one of the available defines for this purpose. The available options are:
- .RS
- .IP CURL_SSLVERSION_DEFAULT
- The default action. This will attempt to figure out the remote SSL protocol
- version.
- .IP CURL_SSLVERSION_TLSv1
- TLSv1.x
- .IP CURL_SSLVERSION_TLSv1_0
- TLSv1.0
- .IP CURL_SSLVERSION_TLSv1_1
- TLSv1.1
- .IP CURL_SSLVERSION_TLSv1_2
- TLSv1.2
- .IP CURL_SSLVERSION_TLSv1_3
- TLSv1.3
- .RE
- The maximum TLS version can be set by using \fIone\fP of the
- CURL_SSLVERSION_MAX_ macros below. It is also possible to OR \fIone\fP of the
- CURL_SSLVERSION_ macros with \fIone\fP of the CURL_SSLVERSION_MAX_ macros.
- The MAX macros are not supported for SSL backends axTLS or wolfSSL.
- .RS
- .IP CURL_SSLVERSION_MAX_DEFAULT
- The flag defines the maximum supported TLS version as TLSv1.2, or the default
- value from the SSL library.
- (Added in 7.54.0)
- .IP CURL_SSLVERSION_MAX_TLSv1_0
- The flag defines maximum supported TLS version as TLSv1.0.
- (Added in 7.54.0)
- .IP CURL_SSLVERSION_MAX_TLSv1_1
- The flag defines maximum supported TLS version as TLSv1.1.
- (Added in 7.54.0)
- .IP CURL_SSLVERSION_MAX_TLSv1_2
- The flag defines maximum supported TLS version as TLSv1.2.
- (Added in 7.54.0)
- .IP CURL_SSLVERSION_MAX_TLSv1_3
- The flag defines maximum supported TLS version as TLSv1.3.
- (Added in 7.54.0)
- .RE
- .SH DEFAULT
- CURL_SSLVERSION_DEFAULT
- .SH PROTOCOLS
- All
- .SH EXAMPLE
- .nf
- CURL *curl = curl_easy_init();
- if(curl) {
- curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
- /* ask libcurl to use TLS version 1.0 or later */
- curl_easy_setopt(curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
- /* Perform the request */
- curl_easy_perform(curl);
- }
- .fi
- .SH AVAILABILITY
- Added in 7.52.0
- .SH RETURN VALUE
- Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
- .SH "SEE ALSO"
- .BR CURLOPT_USE_SSL "(3), " CURLOPT_HTTP_VERSION "(3), "
- .BR CURLOPT_IPRESOLVE "(3) " CURLOPT_SSLVERSION "(3), "
|
