7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek/******************************************************************************
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * Module Name: utascii - Utility ascii functions
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek *****************************************************************************/
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * Copyright (C) 2000 - 2016, Intel Corp.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * All rights reserved.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * Redistribution and use in source and binary forms, with or without
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * modification, are permitted provided that the following conditions
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * 1. Redistributions of source code must retain the above copyright
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * notice, this list of conditions, and the following disclaimer,
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * without modification.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * 2. Redistributions in binary form must reproduce at minimum a disclaimer
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * substantially similar to the "NO WARRANTY" disclaimer below
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * ("Disclaimer") and any redistribution must be conditioned upon
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * including a substantially similar Disclaimer requirement for further
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * binary redistribution.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * 3. Neither the names of the above-listed copyright holders nor the names
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * of any contributors may be used to endorse or promote products derived
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * from this software without specific prior written permission.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * Alternatively, this software may be distributed under the terms of the
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * GNU General Public License ("GPL") version 2 as published by the Free
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * Software Foundation.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * NO WARRANTY
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * POSSIBILITY OF SUCH DAMAGES.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek/*******************************************************************************
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * FUNCTION: AcpiUtValidNameseg
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * PARAMETERS: Name - The name or table signature to be examined.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * Four characters, does not have to be a
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * NULL terminated string.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * RETURN: TRUE if signature is has 4 valid ACPI characters
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * DESCRIPTION: Validate an ACPI table signature.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek ******************************************************************************/
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek /* Validate each character in the signature */
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek for (i = 0; i < ACPI_NAME_SIZE; i++)
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek/*******************************************************************************
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * FUNCTION: AcpiUtValidNameChar
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * PARAMETERS: Char - The character to be examined
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * Position - Byte position (0-3)
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * RETURN: TRUE if the character is valid, FALSE otherwise
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * DESCRIPTION: Check for a valid ACPI character. Must be one of:
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * 1) Upper case alpha
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * 3) underscore
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * We allow a '!' as the last character because of the ASF! table
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek ******************************************************************************/
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek if (!((Character >= 'A' && Character <= 'Z') ||
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek /* Allow a '!' in the last position */
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek/*******************************************************************************
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * FUNCTION: AcpiUtCheckAndRepairAscii
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * PARAMETERS: Name - Ascii string
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * Count - Number of characters to check
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * RETURN: None
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * DESCRIPTION: Ensure that the requested number of characters are printable
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek * Ascii characters. Sets non-printable and null chars to <space>.
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek ******************************************************************************/
7b1019a6d29ccb7999dc76cba3dde1c627e8e609Jerry Jelinek for (i = 0; i < Count; i++)