Unknown option: "-3" Unix manual page for CURLOPT_CONNECTTIMEOUT. (host=minya system=Darwin)
CURLOPT_CONNECTTIMEOUT(3)  curl_easy_setopt options  CURLOPT_CONNECTTIMEOUT(3)

NAME
       CURLOPT_CONNECTTIMEOUT - timeout for the connect phase

SYNOPSIS
       #include <curl/curl.h>

       CURLcode  curl_easy_setopt(CURL  *handle,  CURLOPT_CONNECTTIMEOUT, long
       timeout);

DESCRIPTION
       Pass a long. It should contain the maximum time  in  seconds  that  you
       allow the connection phase to the server to take.  This only limits the
       connection phase, it has no impact once it has connected. Set  to  zero
       to switch to the default built-in connection timeout - 300 seconds. See
       also the CURLOPT_TIMEOUT(3) option.

       In unix-like systems, this might cause signals to be used  unless  CUR-
       LOPT_NOSIGNAL(3) is set.

DEFAULT
       300

PROTOCOLS
       All

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");

         /* complete connection within 10 seconds */
         curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 10L);

         curl_easy_perform(curl);
       }

AVAILABILITY
       Always

RETURN VALUE
       Returns CURLE_OK

SEE ALSO
       CURLOPT_TIMEOUT(3), CURLOPT_LOW_SPEED_LIMIT(3),

libcurl 7.54.0                 February 03, 2016     CURLOPT_CONNECTTIMEOUT(3)