Global globus_ftp_client_operationattr_set_control_protection (globus_ftp_client_operationattr_t *attr, globus_ftp_control_protection_t protection): The clear and safe protection levels are treated identically, with the client integrity checking all commands. The confidential and private protection levels are treated identically, with the client encrypting all commands.
Global globus_ftp_client_operationattr_set_data_protection (globus_ftp_client_operationattr_t *attr, globus_ftp_control_protection_t protection): Only safe and private protection levels are supported by gsiftp.