linux-imx

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0

/******************************************************************************

 *

 * Module Name: tbprint - Table output utilities

 *

 * Copyright (C) 2000 - 2019, Intel Corp.

 *

 *****************************************************************************/

​

#include <acpi/acpi.h>

#include "accommon.h"

#include "actables.h"

​

#define _COMPONENT          ACPI_TABLES

ACPI_MODULE_NAME("tbprint")

​

/* Local prototypes */

static void acpi_tb_fix_string(char *string, acpi_size length);

​

static void

acpi_tb_cleanup_table_header(struct acpi_table_header *out_header,

                 struct acpi_table_header *header);

​

/*******************************************************************************

 *

 * FUNCTION:    acpi_tb_fix_string

 *

 * PARAMETERS:  string              - String to be repaired

 *              length              - Maximum length

 *

 * RETURN:      None

 *

 * DESCRIPTION: Replace every non-printable or non-ascii byte in the string

 *              with a question mark '?'.

 *

 ******************************************************************************/

​

static void acpi_tb_fix_string(char *string, acpi_size length)

{

​

    while (length && *string) {

        if (!isprint((int)*string)) {

            *string = '?';

        }

​

        string++;

        length--;

    }

}

​

/*******************************************************************************

 *

 * FUNCTION:    acpi_tb_cleanup_table_header

 *

 * PARAMETERS:  out_header          - Where the cleaned header is returned

 *              header              - Input ACPI table header

 *

 * RETURN:      Returns the cleaned header in out_header

 *

 * DESCRIPTION: Copy the table header and ensure that all "string" fields in

 *              the header consist of printable characters.

 *

 ******************************************************************************/