Unknown option: "-3" Unix manual page for CURLOPT_SSH_HOST_PUBLIC_KEY_MD5. (host=minya system=Darwin)
CURLOPT_SSH_HOST_PUBLIC_KEYcurl_easy_setopt CURLOPT_SSH_HOST_PUBLIC_KEY_MD5(3)

NAME
       CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 - checksum of SSH server public key

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_HOST_PUBLIC_KEY_MD5,
                                 char *md5);

DESCRIPTION
       Pass  a  char  * pointing to a string containing 32 hexadecimal digits.
       The string should be the 128 bit MD5 checksum of the remote host's pub-
       lic  key, and libcurl will reject the connection to the host unless the
       md5sums match.

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

DEFAULT
       NULL

PROTOCOLS
       SCP and SFTP

EXAMPLE
       TODO

AVAILABILITY
       Added in 7.17.1

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_SSH_PUBLIC_KEYFILE(3), CURLOPT_SSH_AUTH_TYPES(3),

libcurl 7.54.0                 December 21, CURLOPT_SSH_HOST_PUBLIC_KEY_MD5(3)