Function krb5_sys::krb5_c_string_to_key

pub unsafe extern fn krb5_c_string_to_key(context: krb5_context,
                                          enctype: krb5_enctype,
                                          string: *const krb5_data,
                                          salt: *const krb5_data,
                                          key: *mut krb5_keyblock)
                                          -> krb5_error_code