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

NAME
       CURLOPT_TLSAUTH_USERNAME - user name to use for TLS authentication

SYNOPSIS
       #include <curl/curl.h>

       CURLcode  curl_easy_setopt(CURL *handle, CURLOPT_TLSAUTH_USERNAME, char
       *user);

DESCRIPTION
       Pass a char * as parameter, which should point to the  zero  terminated
       username  to  use  for the TLS authentication method specified with the
       CURLOPT_TLSAUTH_TYPE(3) option. Requires that the CURLOPT_TLSAUTH_PASS-
       WORD(3) option also be set.

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

DEFAULT
       NULL

PROTOCOLS
       All TLS-based protocols

EXAMPLE
       TODO

AVAILABILITY
       Added in 7.21.4

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_TLSAUTH_TYPE(3), CURLOPT_TLSAUTH_PASSWORD(3),

libcurl 7.54.0                 December 21, 2016   CURLOPT_TLSAUTH_USERNAME(3)