Go to main content

man pages section 3: Library Interfaces and Headers

Exit Print View

Updated: Thursday, June 13, 2019
 
 

CURLOPT_PROXY_SSLVERSION (3)

Name

CURLOPT_PROXY_SSLVERSION - set preferred proxy TLS/SSL version

Synopsis

#include <curl/curl.h>

CURLcode  curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSLVERSION, long
version);

Description

curl_easy_setopt options                           CURLOPT_PROXY_SSLVERSION(3)



NAME
       CURLOPT_PROXY_SSLVERSION - set preferred proxy TLS/SSL version

SYNOPSIS
       #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 will attempt 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_SSLVER-
       SION_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)

DEFAULT
       CURL_SSLVERSION_DEFAULT

PROTOCOLS
       All

EXAMPLE
       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
       Added in 7.52.0

RETURN VALUE
       Returns CURLE_OK if the option is supported,  and  CURLE_UNKNOWN_OPTION
       if not.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | web/curl         |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+
SEE ALSO
       CURLOPT_USE_SSL(3),  CURLOPT_HTTP_VERSION(3), CURLOPT_IPRESOLVE(3) CUR-
       LOPT_SSLVERSION(3),



NOTES
       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source   was    downloaded    from     https://github.com/curl/curl/ar-
       chive/curl-7_64_0.zip

       Further information about this software can be found on the open source
       community website at http://curl.haxx.se/.



libcurl 7.52.0                    16 Nov 2016
                                                   CURLOPT_PROXY_SSLVERSION(3)