Function krb5_sys::krb5_init_creds_step

pub unsafe extern fn krb5_init_creds_step(context: krb5_context,
                                          ctx: krb5_init_creds_context,
                                          in_: *mut krb5_data,
                                          out: *mut krb5_data,
                                          realm: *mut krb5_data,
                                          flags: *mut c_uint)
                                          -> krb5_error_code