mirror of
https://github.com/curl/curl.git
synced 2024-12-21 06:50:10 +08:00
5a488251f7
- make DEFAULT sections less repetitive - make historic mentions use HISTORY - generate the protocols section on `# %PROTOCOLS%` instead of guessing where to put it - generate the availability section on `# %AVAILABILITY%` instead of guessing where to put it - make the protocols section more verbose Closes #14227
132 lines
2.5 KiB
Markdown
132 lines
2.5 KiB
Markdown
---
|
|
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
SPDX-License-Identifier: curl
|
|
Title: CURLOPT_PROXY_SSLVERSION
|
|
Section: 3
|
|
Source: libcurl
|
|
See-also:
|
|
- CURLOPT_HTTP_VERSION (3)
|
|
- CURLOPT_IPRESOLVE (3)
|
|
- CURLOPT_SSLVERSION (3)
|
|
- CURLOPT_USE_SSL (3)
|
|
Protocol:
|
|
- TLS
|
|
TLS-backend:
|
|
- All
|
|
Added-in: 7.52.0
|
|
---
|
|
|
|
# NAME
|
|
|
|
CURLOPT_PROXY_SSLVERSION - preferred HTTPS proxy TLS version
|
|
|
|
# SYNOPSIS
|
|
|
|
~~~c
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLVERSION,
|
|
long version);
|
|
~~~
|
|
|
|
# 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:
|
|
|
|
## CURL_SSLVERSION_DEFAULT
|
|
|
|
The default action. This attempts to figure out the remote SSL protocol
|
|
version.
|
|
|
|
## CURL_SSLVERSION_TLSv1
|
|
|
|
TLSv1.x
|
|
|
|
## CURL_SSLVERSION_TLSv1_0
|
|
|
|
TLSv1.0
|
|
|
|
## CURL_SSLVERSION_TLSv1_1
|
|
|
|
TLSv1.1
|
|
|
|
## CURL_SSLVERSION_TLSv1_2
|
|
|
|
TLSv1.2
|
|
|
|
## CURL_SSLVERSION_TLSv1_3
|
|
|
|
TLSv1.3
|
|
|
|
##
|
|
|
|
The maximum TLS version can be set by using *one* of the CURL_SSLVERSION_MAX_
|
|
macros below. It is also possible to OR *one* of the CURL_SSLVERSION_ macros
|
|
with *one* of the CURL_SSLVERSION_MAX_ macros. The MAX macros are not
|
|
supported for wolfSSL.
|
|
|
|
## 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)
|
|
|
|
## CURL_SSLVERSION_MAX_TLSv1_0
|
|
|
|
The flag defines maximum supported TLS version as TLSv1.0.
|
|
(Added in 7.54.0)
|
|
|
|
## CURL_SSLVERSION_MAX_TLSv1_1
|
|
|
|
The flag defines maximum supported TLS version as TLSv1.1.
|
|
(Added in 7.54.0)
|
|
|
|
## CURL_SSLVERSION_MAX_TLSv1_2
|
|
|
|
The flag defines maximum supported TLS version as TLSv1.2.
|
|
(Added in 7.54.0)
|
|
|
|
## CURL_SSLVERSION_MAX_TLSv1_3
|
|
|
|
The flag defines maximum supported TLS version as TLSv1.3.
|
|
(Added in 7.54.0)
|
|
|
|
##
|
|
|
|
In versions of curl prior to 7.54 the CURL_SSLVERSION_TLS options were
|
|
documented to allow *only* the specified TLS version, but behavior was
|
|
inconsistent depending on the TLS library.
|
|
|
|
# DEFAULT
|
|
|
|
CURL_SSLVERSION_DEFAULT
|
|
|
|
# %PROTOCOLS%
|
|
|
|
# EXAMPLE
|
|
|
|
~~~c
|
|
int main(void)
|
|
{
|
|
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);
|
|
}
|
|
}
|
|
~~~
|
|
|
|
# %AVAILABILITY%
|
|
|
|
# RETURN VALUE
|
|
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|