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

NAME
       CURLOPT_SERVICE_NAME - authentication service name

SYNOPSIS
       #include <curl/curl.h>

       CURLcode   curl_easy_setopt(CURL  *handle,  CURLOPT_SERVICE_NAME,  char
       *name);

DESCRIPTION
       Pass a char * as parameter to a string holding the name of the  service
       for  DIGEST-MD5,  SPNEGO  and Kerberos 5 authentication mechanisms. The
       default service names are "ftp", "HTTP", "imap", "pop" and "smtp". This
       option allows you to change them.

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

DEFAULT
       See above

PROTOCOLS
       HTTP, FTP, IMAP, POP and SMTP

EXAMPLE
       TODO

AVAILABILITY
       Added in 7.43.0 for HTTP, 7.49.0 for FTP, IMAP, POP3 and SMTP.

RETURN VALUE
       Returns CURLE_OK if the option is  supported,  CURLE_UNKNOWN_OPTION  if
       not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO
       CURLOPT_PROXY(3), CURLOPT_PROXYTYPE(3),

libcurl 7.54.0                 December 21, 2016       CURLOPT_SERVICE_NAME(3)