CURLOPT_USE_SSL(3)

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 lib-
     curl 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);
     }

libcurl 7.58.0   Last change: February 03, 2016                 1

CURLOPT_USE_SSL(3)  curl_easy_setopt options   CURLOPT_USE_SSL(3)

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 7.58.0   Last change: February 03, 2016                 2