923 lines
27 KiB
C
923 lines
27 KiB
C
/******************************************************************************
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*
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* Module Name: cmclib - Local implementation of C library functions
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* $Revision: 53 $
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
|
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __CMCLIB_C__
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#include "acpi.h"
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/*
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* These implementations of standard C Library routines can optionally be
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* used if a C library is not available. In general, they are less efficient
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* than an inline or assembly implementation
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*/
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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME ("cmclib")
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#ifndef ACPI_USE_SYSTEM_CLIBRARY
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/*******************************************************************************
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*
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* FUNCTION: strlen
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*
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* PARAMETERS: String - Null terminated string
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*
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* RETURN: Length
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*
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* DESCRIPTION: Returns the length of the input string
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*
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******************************************************************************/
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ACPI_SIZE
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AcpiUtStrlen (
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const char *String)
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{
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UINT32 Length = 0;
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/* Count the string until a null is encountered */
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while (*String)
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{
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Length++;
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String++;
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}
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return (Length);
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}
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/*******************************************************************************
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*
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* FUNCTION: strcpy
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*
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* PARAMETERS: DstString - Target of the copy
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* SrcString - The source string to copy
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*
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* RETURN: DstString
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*
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* DESCRIPTION: Copy a null terminated string
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*
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******************************************************************************/
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char *
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AcpiUtStrcpy (
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char *DstString,
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const char *SrcString)
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{
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char *String = DstString;
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/* Move bytes brute force */
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while (*SrcString)
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{
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*String = *SrcString;
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String++;
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SrcString++;
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}
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/* Null terminate */
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*String = 0;
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return (DstString);
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}
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/*******************************************************************************
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*
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* FUNCTION: strncpy
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*
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* PARAMETERS: DstString - Target of the copy
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* SrcString - The source string to copy
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* Count - Maximum # of bytes to copy
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*
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* RETURN: DstString
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*
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* DESCRIPTION: Copy a null terminated string, with a maximum length
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*
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******************************************************************************/
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char *
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AcpiUtStrncpy (
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char *DstString,
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const char *SrcString,
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ACPI_SIZE Count)
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{
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char *String = DstString;
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/* Copy the string */
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for (String = DstString;
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Count && (Count--, (*String++ = *SrcString++)); )
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{;}
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/* Pad with nulls if necessary */
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while (Count--)
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{
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*String = 0;
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String++;
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}
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/* Return original pointer */
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return (DstString);
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}
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/*******************************************************************************
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*
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* FUNCTION: strcmp
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*
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* PARAMETERS: String1 - First string
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* String2 - Second string
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*
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* RETURN: Index where strings mismatched, or 0 if strings matched
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*
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* DESCRIPTION: Compare two null terminated strings
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*
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******************************************************************************/
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int
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AcpiUtStrcmp (
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const char *String1,
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const char *String2)
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{
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for ( ; (*String1 == *String2); String2++)
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{
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if (!*String1++)
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{
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return (0);
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}
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}
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return ((unsigned char) *String1 - (unsigned char) *String2);
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}
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/*******************************************************************************
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*
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* FUNCTION: memcmp
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*
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* PARAMETERS: Buffer1 - First Buffer
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* Buffer2 - Second Buffer
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* Count - Maximum # of bytes to compare
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*
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* RETURN: Index where Buffers mismatched, or 0 if Buffers matched
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*
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* DESCRIPTION: Compare two Buffers, with a maximum length
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*
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******************************************************************************/
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int
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AcpiUtMemcmp (
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const char *Buffer1,
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const char *Buffer2,
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ACPI_SIZE Count)
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{
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for ( ; Count-- && (*Buffer1 == *Buffer2); Buffer1++, Buffer2++)
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{
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}
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return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *Buffer1 -
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(unsigned char) *Buffer2));
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}
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/*******************************************************************************
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*
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* FUNCTION: strncmp
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*
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* PARAMETERS: String1 - First string
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* String2 - Second string
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* Count - Maximum # of bytes to compare
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*
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* RETURN: Index where strings mismatched, or 0 if strings matched
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*
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* DESCRIPTION: Compare two null terminated strings, with a maximum length
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*
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******************************************************************************/
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int
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AcpiUtStrncmp (
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const char *String1,
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const char *String2,
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ACPI_SIZE Count)
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{
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|
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for ( ; Count-- && (*String1 == *String2); String2++)
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{
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if (!*String1++)
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{
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return (0);
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}
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}
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return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *String1 -
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(unsigned char) *String2));
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}
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/*******************************************************************************
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*
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* FUNCTION: Strcat
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*
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* PARAMETERS: DstString - Target of the copy
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* SrcString - The source string to copy
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*
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* RETURN: DstString
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*
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* DESCRIPTION: Append a null terminated string to a null terminated string
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*
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******************************************************************************/
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char *
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AcpiUtStrcat (
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char *DstString,
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const char *SrcString)
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{
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char *String;
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|
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/* Find end of the destination string */
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for (String = DstString; *String++; )
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{ ; }
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/* Concatenate the string */
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for (--String; (*String++ = *SrcString++); )
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{ ; }
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return (DstString);
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}
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|
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/*******************************************************************************
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*
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* FUNCTION: strncat
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*
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* PARAMETERS: DstString - Target of the copy
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* SrcString - The source string to copy
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* Count - Maximum # of bytes to copy
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*
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* RETURN: DstString
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*
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* DESCRIPTION: Append a null terminated string to a null terminated string,
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* with a maximum count.
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*
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******************************************************************************/
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char *
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AcpiUtStrncat (
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char *DstString,
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const char *SrcString,
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ACPI_SIZE Count)
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{
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char *String;
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|
|
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if (Count)
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{
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/* Find end of the destination string */
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for (String = DstString; *String++; )
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{ ; }
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/* Concatenate the string */
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for (--String; (*String++ = *SrcString++) && --Count; )
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{ ; }
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/* Null terminate if necessary */
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if (!Count)
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{
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*String = 0;
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}
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}
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return (DstString);
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}
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|
|
|
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/*******************************************************************************
|
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*
|
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* FUNCTION: memcpy
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*
|
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* PARAMETERS: Dest - Target of the copy
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* Src - Source buffer to copy
|
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* Count - Number of bytes to copy
|
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*
|
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* RETURN: Dest
|
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*
|
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* DESCRIPTION: Copy arbitrary bytes of memory
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*
|
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******************************************************************************/
|
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|
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void *
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AcpiUtMemcpy (
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void *Dest,
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const void *Src,
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ACPI_SIZE Count)
|
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{
|
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char *New = (char *) Dest;
|
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char *Old = (char *) Src;
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|
|
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while (Count)
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{
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*New = *Old;
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New++;
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Old++;
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Count--;
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}
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return (Dest);
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}
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|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: memset
|
|
*
|
|
* PARAMETERS: Dest - Buffer to set
|
|
* Value - Value to set each byte of memory
|
|
* Count - Number of bytes to set
|
|
*
|
|
* RETURN: Dest
|
|
*
|
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* DESCRIPTION: Initialize a buffer to a known value.
|
|
*
|
|
******************************************************************************/
|
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|
|
void *
|
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AcpiUtMemset (
|
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void *Dest,
|
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ACPI_NATIVE_UINT Value,
|
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ACPI_SIZE Count)
|
|
{
|
|
char *New = (char *) Dest;
|
|
|
|
|
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while (Count)
|
|
{
|
|
*New = (char) Value;
|
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New++;
|
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Count--;
|
|
}
|
|
|
|
return (Dest);
|
|
}
|
|
|
|
|
|
#define NEGATIVE 1
|
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#define POSITIVE 0
|
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|
|
const UINT8 _acpi_ctype[257] = {
|
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_ACPI_CN, /* 0x0 0. */
|
|
_ACPI_CN, /* 0x1 1. */
|
|
_ACPI_CN, /* 0x2 2. */
|
|
_ACPI_CN, /* 0x3 3. */
|
|
_ACPI_CN, /* 0x4 4. */
|
|
_ACPI_CN, /* 0x5 5. */
|
|
_ACPI_CN, /* 0x6 6. */
|
|
_ACPI_CN, /* 0x7 7. */
|
|
_ACPI_CN, /* 0x8 8. */
|
|
_ACPI_CN|_ACPI_SP, /* 0x9 9. */
|
|
_ACPI_CN|_ACPI_SP, /* 0xA 10. */
|
|
_ACPI_CN|_ACPI_SP, /* 0xB 11. */
|
|
_ACPI_CN|_ACPI_SP, /* 0xC 12. */
|
|
_ACPI_CN|_ACPI_SP, /* 0xD 13. */
|
|
_ACPI_CN, /* 0xE 14. */
|
|
_ACPI_CN, /* 0xF 15. */
|
|
_ACPI_CN, /* 0x10 16. */
|
|
_ACPI_CN, /* 0x11 17. */
|
|
_ACPI_CN, /* 0x12 18. */
|
|
_ACPI_CN, /* 0x13 19. */
|
|
_ACPI_CN, /* 0x14 20. */
|
|
_ACPI_CN, /* 0x15 21. */
|
|
_ACPI_CN, /* 0x16 22. */
|
|
_ACPI_CN, /* 0x17 23. */
|
|
_ACPI_CN, /* 0x18 24. */
|
|
_ACPI_CN, /* 0x19 25. */
|
|
_ACPI_CN, /* 0x1A 26. */
|
|
_ACPI_CN, /* 0x1B 27. */
|
|
_ACPI_CN, /* 0x1C 28. */
|
|
_ACPI_CN, /* 0x1D 29. */
|
|
_ACPI_CN, /* 0x1E 30. */
|
|
_ACPI_CN, /* 0x1F 31. */
|
|
_ACPI_XS|_ACPI_SP, /* 0x20 32. ' ' */
|
|
_ACPI_PU, /* 0x21 33. '!' */
|
|
_ACPI_PU, /* 0x22 34. '"' */
|
|
_ACPI_PU, /* 0x23 35. '#' */
|
|
_ACPI_PU, /* 0x24 36. '$' */
|
|
_ACPI_PU, /* 0x25 37. '%' */
|
|
_ACPI_PU, /* 0x26 38. '&' */
|
|
_ACPI_PU, /* 0x27 39. ''' */
|
|
_ACPI_PU, /* 0x28 40. '(' */
|
|
_ACPI_PU, /* 0x29 41. ')' */
|
|
_ACPI_PU, /* 0x2A 42. '*' */
|
|
_ACPI_PU, /* 0x2B 43. '+' */
|
|
_ACPI_PU, /* 0x2C 44. ',' */
|
|
_ACPI_PU, /* 0x2D 45. '-' */
|
|
_ACPI_PU, /* 0x2E 46. '.' */
|
|
_ACPI_PU, /* 0x2F 47. '/' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x30 48. '0' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x31 49. '1' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x32 50. '2' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x33 51. '3' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x34 52. '4' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x35 53. '5' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x36 54. '6' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x37 55. '7' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x38 56. '8' */
|
|
_ACPI_XD|_ACPI_DI, /* 0x39 57. '9' */
|
|
_ACPI_PU, /* 0x3A 58. ':' */
|
|
_ACPI_PU, /* 0x3B 59. ';' */
|
|
_ACPI_PU, /* 0x3C 60. '<' */
|
|
_ACPI_PU, /* 0x3D 61. '=' */
|
|
_ACPI_PU, /* 0x3E 62. '>' */
|
|
_ACPI_PU, /* 0x3F 63. '?' */
|
|
_ACPI_PU, /* 0x40 64. '@' */
|
|
_ACPI_XD|_ACPI_UP, /* 0x41 65. 'A' */
|
|
_ACPI_XD|_ACPI_UP, /* 0x42 66. 'B' */
|
|
_ACPI_XD|_ACPI_UP, /* 0x43 67. 'C' */
|
|
_ACPI_XD|_ACPI_UP, /* 0x44 68. 'D' */
|
|
_ACPI_XD|_ACPI_UP, /* 0x45 69. 'E' */
|
|
_ACPI_XD|_ACPI_UP, /* 0x46 70. 'F' */
|
|
_ACPI_UP, /* 0x47 71. 'G' */
|
|
_ACPI_UP, /* 0x48 72. 'H' */
|
|
_ACPI_UP, /* 0x49 73. 'I' */
|
|
_ACPI_UP, /* 0x4A 74. 'J' */
|
|
_ACPI_UP, /* 0x4B 75. 'K' */
|
|
_ACPI_UP, /* 0x4C 76. 'L' */
|
|
_ACPI_UP, /* 0x4D 77. 'M' */
|
|
_ACPI_UP, /* 0x4E 78. 'N' */
|
|
_ACPI_UP, /* 0x4F 79. 'O' */
|
|
_ACPI_UP, /* 0x50 80. 'P' */
|
|
_ACPI_UP, /* 0x51 81. 'Q' */
|
|
_ACPI_UP, /* 0x52 82. 'R' */
|
|
_ACPI_UP, /* 0x53 83. 'S' */
|
|
_ACPI_UP, /* 0x54 84. 'T' */
|
|
_ACPI_UP, /* 0x55 85. 'U' */
|
|
_ACPI_UP, /* 0x56 86. 'V' */
|
|
_ACPI_UP, /* 0x57 87. 'W' */
|
|
_ACPI_UP, /* 0x58 88. 'X' */
|
|
_ACPI_UP, /* 0x59 89. 'Y' */
|
|
_ACPI_UP, /* 0x5A 90. 'Z' */
|
|
_ACPI_PU, /* 0x5B 91. '[' */
|
|
_ACPI_PU, /* 0x5C 92. '\' */
|
|
_ACPI_PU, /* 0x5D 93. ']' */
|
|
_ACPI_PU, /* 0x5E 94. '^' */
|
|
_ACPI_PU, /* 0x5F 95. '_' */
|
|
_ACPI_PU, /* 0x60 96. '`' */
|
|
_ACPI_XD|_ACPI_LO, /* 0x61 97. 'a' */
|
|
_ACPI_XD|_ACPI_LO, /* 0x62 98. 'b' */
|
|
_ACPI_XD|_ACPI_LO, /* 0x63 99. 'c' */
|
|
_ACPI_XD|_ACPI_LO, /* 0x64 100. 'd' */
|
|
_ACPI_XD|_ACPI_LO, /* 0x65 101. 'e' */
|
|
_ACPI_XD|_ACPI_LO, /* 0x66 102. 'f' */
|
|
_ACPI_LO, /* 0x67 103. 'g' */
|
|
_ACPI_LO, /* 0x68 104. 'h' */
|
|
_ACPI_LO, /* 0x69 105. 'i' */
|
|
_ACPI_LO, /* 0x6A 106. 'j' */
|
|
_ACPI_LO, /* 0x6B 107. 'k' */
|
|
_ACPI_LO, /* 0x6C 108. 'l' */
|
|
_ACPI_LO, /* 0x6D 109. 'm' */
|
|
_ACPI_LO, /* 0x6E 110. 'n' */
|
|
_ACPI_LO, /* 0x6F 111. 'o' */
|
|
_ACPI_LO, /* 0x70 112. 'p' */
|
|
_ACPI_LO, /* 0x71 113. 'q' */
|
|
_ACPI_LO, /* 0x72 114. 'r' */
|
|
_ACPI_LO, /* 0x73 115. 's' */
|
|
_ACPI_LO, /* 0x74 116. 't' */
|
|
_ACPI_LO, /* 0x75 117. 'u' */
|
|
_ACPI_LO, /* 0x76 118. 'v' */
|
|
_ACPI_LO, /* 0x77 119. 'w' */
|
|
_ACPI_LO, /* 0x78 120. 'x' */
|
|
_ACPI_LO, /* 0x79 121. 'y' */
|
|
_ACPI_LO, /* 0x7A 122. 'z' */
|
|
_ACPI_PU, /* 0x7B 123. '{' */
|
|
_ACPI_PU, /* 0x7C 124. '|' */
|
|
_ACPI_PU, /* 0x7D 125. '}' */
|
|
_ACPI_PU, /* 0x7E 126. '~' */
|
|
_ACPI_CN, /* 0x7F 127. */
|
|
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x80 to 0x8F */
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x90 to 0x9F */
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xA0 to 0xAF */
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xB0 to 0xBF */
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xC0 to 0xCF */
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xD0 to 0xDF */
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xE0 to 0xEF */
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xF0 to 0x100 */
|
|
};
|
|
|
|
#define IS_UPPER(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_UP))
|
|
#define IS_LOWER(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO))
|
|
#define IS_DIGIT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_DI))
|
|
#define IS_SPACE(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_SP))
|
|
#define IS_XDIGIT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_XD))
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtToUpper
|
|
*
|
|
* PARAMETERS:
|
|
*
|
|
* RETURN:
|
|
*
|
|
* DESCRIPTION: Convert character to uppercase
|
|
*
|
|
******************************************************************************/
|
|
|
|
int
|
|
AcpiUtToUpper (
|
|
int c)
|
|
{
|
|
|
|
return (IS_LOWER(c) ? ((c)-0x20) : (c));
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtToLower
|
|
*
|
|
* PARAMETERS:
|
|
*
|
|
* RETURN:
|
|
*
|
|
* DESCRIPTION: Convert character to lowercase
|
|
*
|
|
******************************************************************************/
|
|
|
|
int
|
|
AcpiUtToLower (
|
|
int c)
|
|
{
|
|
|
|
return (IS_UPPER(c) ? ((c)+0x20) : (c));
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: strstr
|
|
*
|
|
* PARAMETERS: String1 -
|
|
* String2
|
|
*
|
|
* RETURN:
|
|
*
|
|
* DESCRIPTION: Checks if String2 occurs in String1. This is not really a
|
|
* full implementation of strstr, only sufficient for command
|
|
* matching
|
|
*
|
|
******************************************************************************/
|
|
|
|
char *
|
|
AcpiUtStrstr (
|
|
char *String1,
|
|
char *String2)
|
|
{
|
|
char *String;
|
|
|
|
|
|
if (AcpiUtStrlen (String2) > AcpiUtStrlen (String1))
|
|
{
|
|
return (NULL);
|
|
}
|
|
|
|
/* Walk entire string, comparing the letters */
|
|
|
|
for (String = String1; *String2; )
|
|
{
|
|
if (*String2 != *String)
|
|
{
|
|
return (NULL);
|
|
}
|
|
|
|
String2++;
|
|
String++;
|
|
}
|
|
|
|
return (String1);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: strtoul
|
|
*
|
|
* PARAMETERS: String - Null terminated string
|
|
* Terminater - Where a pointer to the terminating byte is returned
|
|
* Base - Radix of the string
|
|
*
|
|
* RETURN: Converted value
|
|
*
|
|
* DESCRIPTION: Convert a string into an unsigned value.
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT32
|
|
AcpiUtStrtoul (
|
|
const char *String,
|
|
char **Terminator,
|
|
UINT32 Base)
|
|
{
|
|
UINT32 converted = 0;
|
|
UINT32 index;
|
|
UINT32 sign;
|
|
const char *StringStart;
|
|
UINT32 ReturnValue = 0;
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
/*
|
|
* Save the value of the pointer to the buffer's first
|
|
* character, save the current errno value, and then
|
|
* skip over any white space in the buffer:
|
|
*/
|
|
StringStart = String;
|
|
while (IS_SPACE (*String) || *String == '\t')
|
|
{
|
|
++String;
|
|
}
|
|
|
|
/*
|
|
* The buffer may contain an optional plus or minus sign.
|
|
* If it does, then skip over it but remember what is was:
|
|
*/
|
|
if (*String == '-')
|
|
{
|
|
sign = NEGATIVE;
|
|
++String;
|
|
}
|
|
else if (*String == '+')
|
|
{
|
|
++String;
|
|
sign = POSITIVE;
|
|
}
|
|
else
|
|
{
|
|
sign = POSITIVE;
|
|
}
|
|
|
|
/*
|
|
* If the input parameter Base is zero, then we need to
|
|
* determine if it is octal, decimal, or hexadecimal:
|
|
*/
|
|
if (Base == 0)
|
|
{
|
|
if (*String == '0')
|
|
{
|
|
if (AcpiUtToLower (*(++String)) == 'x')
|
|
{
|
|
Base = 16;
|
|
++String;
|
|
}
|
|
else
|
|
{
|
|
Base = 8;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Base = 10;
|
|
}
|
|
}
|
|
else if (Base < 2 || Base > 36)
|
|
{
|
|
/*
|
|
* The specified Base parameter is not in the domain of
|
|
* this function:
|
|
*/
|
|
goto done;
|
|
}
|
|
|
|
/*
|
|
* For octal and hexadecimal bases, skip over the leading
|
|
* 0 or 0x, if they are present.
|
|
*/
|
|
if (Base == 8 && *String == '0')
|
|
{
|
|
String++;
|
|
}
|
|
|
|
if (Base == 16 &&
|
|
*String == '0' &&
|
|
AcpiUtToLower (*(++String)) == 'x')
|
|
{
|
|
String++;
|
|
}
|
|
|
|
|
|
/*
|
|
* Main loop: convert the string to an unsigned long:
|
|
*/
|
|
while (*String)
|
|
{
|
|
if (IS_DIGIT (*String))
|
|
{
|
|
index = (UINT32) ((UINT8) *String - '0');
|
|
}
|
|
else
|
|
{
|
|
index = (UINT32) AcpiUtToUpper (*String);
|
|
if (IS_UPPER (index))
|
|
{
|
|
index = index - 'A' + 10;
|
|
}
|
|
else
|
|
{
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
if (index >= Base)
|
|
{
|
|
goto done;
|
|
}
|
|
|
|
/*
|
|
* Check to see if value is out of range:
|
|
*/
|
|
|
|
if (ReturnValue > ((ACPI_UINT32_MAX - (UINT32) index) /
|
|
(UINT32) Base))
|
|
{
|
|
Status = AE_ERROR;
|
|
ReturnValue = 0; /* reset */
|
|
}
|
|
else
|
|
{
|
|
ReturnValue *= Base;
|
|
ReturnValue += index;
|
|
converted = 1;
|
|
}
|
|
|
|
++String;
|
|
}
|
|
|
|
done:
|
|
/*
|
|
* If appropriate, update the caller's pointer to the next
|
|
* unconverted character in the buffer.
|
|
*/
|
|
if (Terminator)
|
|
{
|
|
if (converted == 0 && ReturnValue == 0 && String != NULL)
|
|
{
|
|
*Terminator = (char *) StringStart;
|
|
}
|
|
else
|
|
{
|
|
*Terminator = (char *) String;
|
|
}
|
|
}
|
|
|
|
if (Status == AE_ERROR)
|
|
{
|
|
ReturnValue = ACPI_UINT32_MAX;
|
|
}
|
|
|
|
/*
|
|
* If a minus sign was present, then "the conversion is negated":
|
|
*/
|
|
if (sign == NEGATIVE)
|
|
{
|
|
ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1;
|
|
}
|
|
|
|
return (ReturnValue);
|
|
}
|
|
|
|
#endif /* ACPI_USE_SYSTEM_CLIBRARY */
|
|
|