entrepot_libcurl(const std::shared_ptr< user_interaction > &dialog, mycurl_protocol proto, const std::string &login, const secu_string &password, const std::string &host, const std::string &port, bool auth_from_file, const std::string &sftp_pub_keyfile, const std::string &sftp_prv_keyfile, const std::string &sftp_known_hosts, U_I waiting_time)