NAME

       CURLOPT_PROTOCOLS - allowed protocols

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROTOCOLS, long bitmask);

DESCRIPTION

       This  option  is  deprecated. We strongly recommend using CURLOPT_PROTOCOLS_STR(3) instead
       because this option cannot control all available protocols!

       Pass a long that holds a bitmask of CURLPROTO_* defines. If used, this bitmask limits what
       protocols  libcurl  may  use  in  the transfer. This allows you to have a libcurl built to
       support a wide range of protocols but still limit specific transfers to only be allowed to
       use   a   subset   of   them.  By  default  libcurl  accepts  all  protocols  it  supports
       (CURLPROTO_ALL). See also CURLOPT_REDIR_PROTOCOLS(3).

       These are the available protocol defines:
       CURLPROTO_DICT
       CURLPROTO_FILE
       CURLPROTO_FTP
       CURLPROTO_FTPS
       CURLPROTO_GOPHER
       CURLPROTO_HTTP
       CURLPROTO_HTTPS
       CURLPROTO_IMAP
       CURLPROTO_IMAPS
       CURLPROTO_LDAP
       CURLPROTO_LDAPS
       CURLPROTO_POP3
       CURLPROTO_POP3S
       CURLPROTO_RTMP
       CURLPROTO_RTMPE
       CURLPROTO_RTMPS
       CURLPROTO_RTMPT
       CURLPROTO_RTMPTE
       CURLPROTO_RTMPTS
       CURLPROTO_RTSP
       CURLPROTO_SCP
       CURLPROTO_SFTP
       CURLPROTO_SMB
       CURLPROTO_SMBS
       CURLPROTO_SMTP
       CURLPROTO_SMTPS
       CURLPROTO_TELNET
       CURLPROTO_TFTP

DEFAULT

       All protocols built-in.

PROTOCOLS

       All

EXAMPLE

       int main(int argc, char **argv)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           /* pass in the URL from an external source */
           curl_easy_setopt(curl, CURLOPT_URL, argv[1]);

           /* only allow HTTP, TFTP and SFTP */
           curl_easy_setopt(curl, CURLOPT_PROTOCOLS,
                            CURLPROTO_HTTP | CURLPROTO_TFTP | CURLPROTO_SFTP);

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

AVAILABILITY

       Added in 7.19.4. Deprecated since 7.85.0.

RETURN VALUE

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

SEE ALSO

       CURLOPT_DEFAULT_PROTOCOL(3), CURLOPT_REDIR_PROTOCOLS(3), CURLOPT_URL(3)