CURLOPT_DEFAULT_PROTOCOL(3)				     curl_easy_setopt options				       CURLOPT_DEFAULT_PROTOCOL(3)

NAME

       CURLOPT_DEFAULT_PROTOCOL - default protocol to use if the URL is missing a scheme name

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DEFAULT_PROTOCOL, char *protocol);

DESCRIPTION

       This option tells libcurl to use protocol if the URL is missing a scheme name.

       Use one of these protocol (scheme) names:

       dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, ldaps, pop3, pop3s, rtsp, scp, sftp, smb, smbs, smtp, smtps, telnet, tftp

       An  unknown  or	unsupported  protocol  causes  error CURLE_UNSUPPORTED_PROTOCOL when libcurl parses a schemeless URL. Parsing happens when
       curl_easy_perform(3) or curl_multi_perform(3) is called. The protocols supported by libcurl will vary depending on how it  was  built.  Use
       curl_version_info(3) if you need a list of protocol names supported by the build of libcurl that you are using.

       This option does not change the default proxy protocol (http).

       Without this option libcurl would make a guess based on the host, see CURLOPT_URL(3) for details.

       The application does not have to keep the string around after setting this option.

DEFAULT

       NULL (make a guess based on the host)

PROTOCOLS

       All

EXAMPLE

       curl = curl_easy_init();
       if(curl) {
	 /* set a URL without a scheme */
	 curl_easy_setopt(curl, CURLOPT_URL, "example.com");

	 /* set the default protocol (scheme) for schemeless URLs */
	 curl_easy_setopt(curl, CURLOPT_DEFAULT_PROTOCOL, "https");

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

AVAILABILITY

       Added in 7.45.0

RETURN VALUE

       CURLE_OK if the option is supported.

       CURLE_OUT_OF_MEMORY if there was insufficient heap space.

       CURLE_UNKNOWN_OPTION if the option is not supported.

SEE ALSO

       CURLOPT_URL(3),

libcurl 7.54.0							 December 21, 2016				       CURLOPT_DEFAULT_PROTOCOL(3)