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curl/docs/libcurl/opts/CURLOPT_PROXY_SSLVERSION.3
2016-12-16 16:57:39 +01:00

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.TH CURLOPT_PROXY_SSLVERSION 3 "16 Nov 2016" "libcurl 7.52.0" "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
.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_PROXY_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), "