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CURLOPT_USE_SSL(3)         curl_easy_setopt options         CURLOPT_USE_SSL(3)




NAME

       CURLOPT_USE_SSL - request using SSL / TLS for the transfer


SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_USE_SSL, long level);


DESCRIPTION

       Pass  a  long  using  one of the values from below, to make libcurl use
       your desired level of SSL for the transfer.

       These are all protocols that start out plain text and get "upgraded" to
       SSL using the STARTTLS command.

       This is for enabling SSL/TLS when you use FTP, SMTP, POP3, IMAP etc.

       CURLUSESSL_NONE
              Don't attempt to use SSL.

       CURLUSESSL_TRY
              Try using SSL, proceed as normal otherwise.

       CURLUSESSL_CONTROL
              Require   SSL   for   the   control   connection  or  fail  with
              CURLE_USE_SSL_FAILED.

       CURLUSESSL_ALL
              Require   SSL   for   all    communication    or    fail    with
              CURLE_USE_SSL_FAILED.


DEFAULT

       CURLUSESSL_NONE


PROTOCOLS

       FTP, SMTP, POP3, IMAP


EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/dir/file.ext");

         /* require use of SSL for this, or fail */
         curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_ALL);

         /* Perform the request */
         curl_easy_perform(curl);
       }


AVAILABILITY

       Added in 7.11.0. This option was known as CURLOPT_FTP_SSL up to 7.16.4,
       and the constants were known as CURLFTPSSL_*


RETURN VALUE

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


SEE ALSO

       CURLOPT_SSLVERSION(3), CURLOPT_SSL_OPTIONS(3),



libcurl 7.37.0                    19 Jun 2014               CURLOPT_USE_SSL(3)

curl 7.39.0 - Generated Fri Nov 7 20:38:24 CST 2014
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