xref: /onnv-gate/usr/src/uts/intel/io/acpica/utilities/utclib.c (revision 9980:13d7f3eec672)
13446Smrj /******************************************************************************
23446Smrj  *
33446Smrj  * Module Name: cmclib - Local implementation of C library functions
43446Smrj  *
53446Smrj  *****************************************************************************/
63446Smrj 
73446Smrj /******************************************************************************
83446Smrj  *
93446Smrj  * 1. Copyright Notice
103446Smrj  *
11*9980SDana.Myers@Sun.COM  * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
123446Smrj  * All rights reserved.
133446Smrj  *
143446Smrj  * 2. License
153446Smrj  *
163446Smrj  * 2.1. This is your license from Intel Corp. under its intellectual property
173446Smrj  * rights.  You may have additional license terms from the party that provided
183446Smrj  * you this software, covering your right to use that party's intellectual
193446Smrj  * property rights.
203446Smrj  *
213446Smrj  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
223446Smrj  * copy of the source code appearing in this file ("Covered Code") an
233446Smrj  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
243446Smrj  * base code distributed originally by Intel ("Original Intel Code") to copy,
253446Smrj  * make derivatives, distribute, use and display any portion of the Covered
263446Smrj  * Code in any form, with the right to sublicense such rights; and
273446Smrj  *
283446Smrj  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
293446Smrj  * license (with the right to sublicense), under only those claims of Intel
303446Smrj  * patents that are infringed by the Original Intel Code, to make, use, sell,
313446Smrj  * offer to sell, and import the Covered Code and derivative works thereof
323446Smrj  * solely to the minimum extent necessary to exercise the above copyright
333446Smrj  * license, and in no event shall the patent license extend to any additions
343446Smrj  * to or modifications of the Original Intel Code.  No other license or right
353446Smrj  * is granted directly or by implication, estoppel or otherwise;
363446Smrj  *
373446Smrj  * The above copyright and patent license is granted only if the following
383446Smrj  * conditions are met:
393446Smrj  *
403446Smrj  * 3. Conditions
413446Smrj  *
423446Smrj  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
433446Smrj  * Redistribution of source code of any substantial portion of the Covered
443446Smrj  * Code or modification with rights to further distribute source must include
453446Smrj  * the above Copyright Notice, the above License, this list of Conditions,
463446Smrj  * and the following Disclaimer and Export Compliance provision.  In addition,
473446Smrj  * Licensee must cause all Covered Code to which Licensee contributes to
483446Smrj  * contain a file documenting the changes Licensee made to create that Covered
493446Smrj  * Code and the date of any change.  Licensee must include in that file the
503446Smrj  * documentation of any changes made by any predecessor Licensee.  Licensee
513446Smrj  * must include a prominent statement that the modification is derived,
523446Smrj  * directly or indirectly, from Original Intel Code.
533446Smrj  *
543446Smrj  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
553446Smrj  * Redistribution of source code of any substantial portion of the Covered
563446Smrj  * Code or modification without rights to further distribute source must
573446Smrj  * include the following Disclaimer and Export Compliance provision in the
583446Smrj  * documentation and/or other materials provided with distribution.  In
593446Smrj  * addition, Licensee may not authorize further sublicense of source of any
603446Smrj  * portion of the Covered Code, and must include terms to the effect that the
613446Smrj  * license from Licensee to its licensee is limited to the intellectual
623446Smrj  * property embodied in the software Licensee provides to its licensee, and
633446Smrj  * not to intellectual property embodied in modifications its licensee may
643446Smrj  * make.
653446Smrj  *
663446Smrj  * 3.3. Redistribution of Executable. Redistribution in executable form of any
673446Smrj  * substantial portion of the Covered Code or modification must reproduce the
683446Smrj  * above Copyright Notice, and the following Disclaimer and Export Compliance
693446Smrj  * provision in the documentation and/or other materials provided with the
703446Smrj  * distribution.
713446Smrj  *
723446Smrj  * 3.4. Intel retains all right, title, and interest in and to the Original
733446Smrj  * Intel Code.
743446Smrj  *
753446Smrj  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
763446Smrj  * Intel shall be used in advertising or otherwise to promote the sale, use or
773446Smrj  * other dealings in products derived from or relating to the Covered Code
783446Smrj  * without prior written authorization from Intel.
793446Smrj  *
803446Smrj  * 4. Disclaimer and Export Compliance
813446Smrj  *
823446Smrj  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
833446Smrj  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
843446Smrj  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
853446Smrj  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
863446Smrj  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
873446Smrj  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
883446Smrj  * PARTICULAR PURPOSE.
893446Smrj  *
903446Smrj  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
913446Smrj  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
923446Smrj  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
933446Smrj  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
943446Smrj  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
953446Smrj  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
963446Smrj  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
973446Smrj  * LIMITED REMEDY.
983446Smrj  *
993446Smrj  * 4.3. Licensee shall not export, either directly or indirectly, any of this
1003446Smrj  * software or system incorporating such software without first obtaining any
1013446Smrj  * required license or other approval from the U. S. Department of Commerce or
1023446Smrj  * any other agency or department of the United States Government.  In the
1033446Smrj  * event Licensee exports any such software from the United States or
1043446Smrj  * re-exports any such software from a foreign destination, Licensee shall
1053446Smrj  * ensure that the distribution and export/re-export of the software is in
1063446Smrj  * compliance with all laws, regulations, orders, or other restrictions of the
1073446Smrj  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
1083446Smrj  * any of its subsidiaries will export/re-export any technical data, process,
1093446Smrj  * software, or service, directly or indirectly, to any country for which the
1103446Smrj  * United States government or any agency thereof requires an export license,
1113446Smrj  * other governmental approval, or letter of assurance, without first obtaining
1123446Smrj  * such license, approval or letter.
1133446Smrj  *
1143446Smrj  *****************************************************************************/
1153446Smrj 
1163446Smrj 
1173446Smrj #define __CMCLIB_C__
1183446Smrj 
1193446Smrj #include "acpi.h"
120*9980SDana.Myers@Sun.COM #include "accommon.h"
1213446Smrj 
1223446Smrj /*
1233446Smrj  * These implementations of standard C Library routines can optionally be
1243446Smrj  * used if a C library is not available.  In general, they are less efficient
1253446Smrj  * than an inline or assembly implementation
1263446Smrj  */
1273446Smrj 
1283446Smrj #define _COMPONENT          ACPI_UTILITIES
1293446Smrj         ACPI_MODULE_NAME    ("cmclib")
1303446Smrj 
1313446Smrj 
1323446Smrj #ifndef ACPI_USE_SYSTEM_CLIBRARY
1333446Smrj 
1343446Smrj #define NEGATIVE    1
1353446Smrj #define POSITIVE    0
1363446Smrj 
1373446Smrj 
1383446Smrj /*******************************************************************************
1393446Smrj  *
1403446Smrj  * FUNCTION:    AcpiUtMemcmp (memcmp)
1413446Smrj  *
1423446Smrj  * PARAMETERS:  Buffer1         - First Buffer
1433446Smrj  *              Buffer2         - Second Buffer
1443446Smrj  *              Count           - Maximum # of bytes to compare
1453446Smrj  *
1463446Smrj  * RETURN:      Index where Buffers mismatched, or 0 if Buffers matched
1473446Smrj  *
1483446Smrj  * DESCRIPTION: Compare two Buffers, with a maximum length
1493446Smrj  *
1503446Smrj  ******************************************************************************/
1513446Smrj 
1523446Smrj int
AcpiUtMemcmp(const char * Buffer1,const char * Buffer2,ACPI_SIZE Count)1533446Smrj AcpiUtMemcmp (
1543446Smrj     const char              *Buffer1,
1553446Smrj     const char              *Buffer2,
1563446Smrj     ACPI_SIZE               Count)
1573446Smrj {
1583446Smrj 
1593446Smrj     for ( ; Count-- && (*Buffer1 == *Buffer2); Buffer1++, Buffer2++)
1603446Smrj     {
1613446Smrj     }
1623446Smrj 
1633446Smrj     return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *Buffer1 -
1643446Smrj         (unsigned char) *Buffer2));
1653446Smrj }
1663446Smrj 
1673446Smrj 
1683446Smrj /*******************************************************************************
1693446Smrj  *
1703446Smrj  * FUNCTION:    AcpiUtMemcpy (memcpy)
1713446Smrj  *
1723446Smrj  * PARAMETERS:  Dest        - Target of the copy
1733446Smrj  *              Src         - Source buffer to copy
1743446Smrj  *              Count       - Number of bytes to copy
1753446Smrj  *
1763446Smrj  * RETURN:      Dest
1773446Smrj  *
1783446Smrj  * DESCRIPTION: Copy arbitrary bytes of memory
1793446Smrj  *
1803446Smrj  ******************************************************************************/
1813446Smrj 
1823446Smrj void *
AcpiUtMemcpy(void * Dest,const void * Src,ACPI_SIZE Count)1833446Smrj AcpiUtMemcpy (
1843446Smrj     void                    *Dest,
1853446Smrj     const void              *Src,
1863446Smrj     ACPI_SIZE               Count)
1873446Smrj {
1883446Smrj     char                    *New = (char *) Dest;
1893446Smrj     char                    *Old = (char *) Src;
1903446Smrj 
1913446Smrj 
1923446Smrj     while (Count)
1933446Smrj     {
1943446Smrj         *New = *Old;
1953446Smrj         New++;
1963446Smrj         Old++;
1973446Smrj         Count--;
1983446Smrj     }
1993446Smrj 
2003446Smrj     return (Dest);
2013446Smrj }
2023446Smrj 
2033446Smrj 
2043446Smrj /*******************************************************************************
2053446Smrj  *
2063446Smrj  * FUNCTION:    AcpiUtMemset (memset)
2073446Smrj  *
2083446Smrj  * PARAMETERS:  Dest        - Buffer to set
2093446Smrj  *              Value       - Value to set each byte of memory
2103446Smrj  *              Count       - Number of bytes to set
2113446Smrj  *
2123446Smrj  * RETURN:      Dest
2133446Smrj  *
2143446Smrj  * DESCRIPTION: Initialize a buffer to a known value.
2153446Smrj  *
2163446Smrj  ******************************************************************************/
2173446Smrj 
2183446Smrj void *
AcpiUtMemset(void * Dest,UINT8 Value,ACPI_SIZE Count)2193446Smrj AcpiUtMemset (
2203446Smrj     void                    *Dest,
2217851SDana.Myers@Sun.COM     UINT8                   Value,
2223446Smrj     ACPI_SIZE               Count)
2233446Smrj {
2243446Smrj     char                    *New = (char *) Dest;
2253446Smrj 
2263446Smrj 
2273446Smrj     while (Count)
2283446Smrj     {
2293446Smrj         *New = (char) Value;
2303446Smrj         New++;
2313446Smrj         Count--;
2323446Smrj     }
2333446Smrj 
2343446Smrj     return (Dest);
2353446Smrj }
2363446Smrj 
2373446Smrj 
2383446Smrj /*******************************************************************************
2393446Smrj  *
2403446Smrj  * FUNCTION:    AcpiUtStrlen (strlen)
2413446Smrj  *
2423446Smrj  * PARAMETERS:  String              - Null terminated string
2433446Smrj  *
2443446Smrj  * RETURN:      Length
2453446Smrj  *
2463446Smrj  * DESCRIPTION: Returns the length of the input string
2473446Smrj  *
2483446Smrj  ******************************************************************************/
2493446Smrj 
2503446Smrj 
2513446Smrj ACPI_SIZE
AcpiUtStrlen(const char * String)2523446Smrj AcpiUtStrlen (
2533446Smrj     const char              *String)
2543446Smrj {
2553446Smrj     UINT32                  Length = 0;
2563446Smrj 
2573446Smrj 
2583446Smrj     /* Count the string until a null is encountered */
2593446Smrj 
2603446Smrj     while (*String)
2613446Smrj     {
2623446Smrj         Length++;
2633446Smrj         String++;
2643446Smrj     }
2653446Smrj 
2663446Smrj     return (Length);
2673446Smrj }
2683446Smrj 
2693446Smrj 
2703446Smrj /*******************************************************************************
2713446Smrj  *
2723446Smrj  * FUNCTION:    AcpiUtStrcpy (strcpy)
2733446Smrj  *
2743446Smrj  * PARAMETERS:  DstString       - Target of the copy
2753446Smrj  *              SrcString       - The source string to copy
2763446Smrj  *
2773446Smrj  * RETURN:      DstString
2783446Smrj  *
2793446Smrj  * DESCRIPTION: Copy a null terminated string
2803446Smrj  *
2813446Smrj  ******************************************************************************/
2823446Smrj 
2833446Smrj char *
AcpiUtStrcpy(char * DstString,const char * SrcString)2843446Smrj AcpiUtStrcpy (
2853446Smrj     char                    *DstString,
2863446Smrj     const char              *SrcString)
2873446Smrj {
2883446Smrj     char                    *String = DstString;
2893446Smrj 
2903446Smrj 
2913446Smrj     /* Move bytes brute force */
2923446Smrj 
2933446Smrj     while (*SrcString)
2943446Smrj     {
2953446Smrj         *String = *SrcString;
2963446Smrj 
2973446Smrj         String++;
2983446Smrj         SrcString++;
2993446Smrj     }
3003446Smrj 
3013446Smrj     /* Null terminate */
3023446Smrj 
3033446Smrj     *String = 0;
3043446Smrj     return (DstString);
3053446Smrj }
3063446Smrj 
3073446Smrj 
3083446Smrj /*******************************************************************************
3093446Smrj  *
3103446Smrj  * FUNCTION:    AcpiUtStrncpy (strncpy)
3113446Smrj  *
3123446Smrj  * PARAMETERS:  DstString       - Target of the copy
3133446Smrj  *              SrcString       - The source string to copy
3143446Smrj  *              Count           - Maximum # of bytes to copy
3153446Smrj  *
3163446Smrj  * RETURN:      DstString
3173446Smrj  *
3183446Smrj  * DESCRIPTION: Copy a null terminated string, with a maximum length
3193446Smrj  *
3203446Smrj  ******************************************************************************/
3213446Smrj 
3223446Smrj char *
AcpiUtStrncpy(char * DstString,const char * SrcString,ACPI_SIZE Count)3233446Smrj AcpiUtStrncpy (
3243446Smrj     char                    *DstString,
3253446Smrj     const char              *SrcString,
3263446Smrj     ACPI_SIZE               Count)
3273446Smrj {
3283446Smrj     char                    *String = DstString;
3293446Smrj 
3303446Smrj 
3313446Smrj     /* Copy the string */
3323446Smrj 
3333446Smrj     for (String = DstString;
3343446Smrj         Count && (Count--, (*String++ = *SrcString++)); )
3353446Smrj     {;}
3363446Smrj 
3373446Smrj     /* Pad with nulls if necessary */
3383446Smrj 
3393446Smrj     while (Count--)
3403446Smrj     {
3413446Smrj         *String = 0;
3423446Smrj         String++;
3433446Smrj     }
3443446Smrj 
3453446Smrj     /* Return original pointer */
3463446Smrj 
3473446Smrj     return (DstString);
3483446Smrj }
3493446Smrj 
3503446Smrj 
3513446Smrj /*******************************************************************************
3523446Smrj  *
3533446Smrj  * FUNCTION:    AcpiUtStrcmp (strcmp)
3543446Smrj  *
3553446Smrj  * PARAMETERS:  String1         - First string
3563446Smrj  *              String2         - Second string
3573446Smrj  *
3583446Smrj  * RETURN:      Index where strings mismatched, or 0 if strings matched
3593446Smrj  *
3603446Smrj  * DESCRIPTION: Compare two null terminated strings
3613446Smrj  *
3623446Smrj  ******************************************************************************/
3633446Smrj 
3643446Smrj int
AcpiUtStrcmp(const char * String1,const char * String2)3653446Smrj AcpiUtStrcmp (
3663446Smrj     const char              *String1,
3673446Smrj     const char              *String2)
3683446Smrj {
3693446Smrj 
3703446Smrj 
3713446Smrj     for ( ; (*String1 == *String2); String2++)
3723446Smrj     {
3733446Smrj         if (!*String1++)
3743446Smrj         {
3753446Smrj             return (0);
3763446Smrj         }
3773446Smrj     }
3783446Smrj 
3793446Smrj     return ((unsigned char) *String1 - (unsigned char) *String2);
3803446Smrj }
3813446Smrj 
3823446Smrj 
3833446Smrj #ifdef ACPI_FUTURE_IMPLEMENTATION
3843446Smrj /* Not used at this time */
3853446Smrj /*******************************************************************************
3863446Smrj  *
3873446Smrj  * FUNCTION:    AcpiUtStrchr (strchr)
3883446Smrj  *
3893446Smrj  * PARAMETERS:  String          - Search string
3903446Smrj  *              ch              - character to search for
3913446Smrj  *
3923446Smrj  * RETURN:      Ptr to char or NULL if not found
3933446Smrj  *
3943446Smrj  * DESCRIPTION: Search a string for a character
3953446Smrj  *
3963446Smrj  ******************************************************************************/
3973446Smrj 
3983446Smrj char *
AcpiUtStrchr(const char * String,int ch)3993446Smrj AcpiUtStrchr (
4003446Smrj     const char              *String,
4013446Smrj     int                     ch)
4023446Smrj {
4033446Smrj 
4043446Smrj 
4053446Smrj     for ( ; (*String); String++)
4063446Smrj     {
4073446Smrj         if ((*String) == (char) ch)
4083446Smrj         {
4093446Smrj             return ((char *) String);
4103446Smrj         }
4113446Smrj     }
4123446Smrj 
4133446Smrj     return (NULL);
4143446Smrj }
4153446Smrj #endif
4163446Smrj 
4173446Smrj /*******************************************************************************
4183446Smrj  *
4193446Smrj  * FUNCTION:    AcpiUtStrncmp (strncmp)
4203446Smrj  *
4213446Smrj  * PARAMETERS:  String1         - First string
4223446Smrj  *              String2         - Second string
4233446Smrj  *              Count           - Maximum # of bytes to compare
4243446Smrj  *
4253446Smrj  * RETURN:      Index where strings mismatched, or 0 if strings matched
4263446Smrj  *
4273446Smrj  * DESCRIPTION: Compare two null terminated strings, with a maximum length
4283446Smrj  *
4293446Smrj  ******************************************************************************/
4303446Smrj 
4313446Smrj int
AcpiUtStrncmp(const char * String1,const char * String2,ACPI_SIZE Count)4323446Smrj AcpiUtStrncmp (
4333446Smrj     const char              *String1,
4343446Smrj     const char              *String2,
4353446Smrj     ACPI_SIZE               Count)
4363446Smrj {
4373446Smrj 
4383446Smrj 
4393446Smrj     for ( ; Count-- && (*String1 == *String2); String2++)
4403446Smrj     {
4413446Smrj         if (!*String1++)
4423446Smrj         {
4433446Smrj             return (0);
4443446Smrj         }
4453446Smrj     }
4463446Smrj 
4473446Smrj     return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *String1 -
4483446Smrj         (unsigned char) *String2));
4493446Smrj }
4503446Smrj 
4513446Smrj 
4523446Smrj /*******************************************************************************
4533446Smrj  *
4543446Smrj  * FUNCTION:    AcpiUtStrcat (Strcat)
4553446Smrj  *
4563446Smrj  * PARAMETERS:  DstString       - Target of the copy
4573446Smrj  *              SrcString       - The source string to copy
4583446Smrj  *
4593446Smrj  * RETURN:      DstString
4603446Smrj  *
4613446Smrj  * DESCRIPTION: Append a null terminated string to a null terminated string
4623446Smrj  *
4633446Smrj  ******************************************************************************/
4643446Smrj 
4653446Smrj char *
AcpiUtStrcat(char * DstString,const char * SrcString)4663446Smrj AcpiUtStrcat (
4673446Smrj     char                    *DstString,
4683446Smrj     const char              *SrcString)
4693446Smrj {
4703446Smrj     char                    *String;
4713446Smrj 
4723446Smrj 
4733446Smrj     /* Find end of the destination string */
4743446Smrj 
4753446Smrj     for (String = DstString; *String++; )
4763446Smrj     { ; }
4773446Smrj 
4783446Smrj     /* Concatenate the string */
4793446Smrj 
4803446Smrj     for (--String; (*String++ = *SrcString++); )
4813446Smrj     { ; }
4823446Smrj 
4833446Smrj     return (DstString);
4843446Smrj }
4853446Smrj 
4863446Smrj 
4873446Smrj /*******************************************************************************
4883446Smrj  *
4893446Smrj  * FUNCTION:    AcpiUtStrncat (strncat)
4903446Smrj  *
4913446Smrj  * PARAMETERS:  DstString       - Target of the copy
4923446Smrj  *              SrcString       - The source string to copy
4933446Smrj  *              Count           - Maximum # of bytes to copy
4943446Smrj  *
4953446Smrj  * RETURN:      DstString
4963446Smrj  *
4973446Smrj  * DESCRIPTION: Append a null terminated string to a null terminated string,
4983446Smrj  *              with a maximum count.
4993446Smrj  *
5003446Smrj  ******************************************************************************/
5013446Smrj 
5023446Smrj char *
AcpiUtStrncat(char * DstString,const char * SrcString,ACPI_SIZE Count)5033446Smrj AcpiUtStrncat (
5043446Smrj     char                    *DstString,
5053446Smrj     const char              *SrcString,
5063446Smrj     ACPI_SIZE               Count)
5073446Smrj {
5083446Smrj     char                    *String;
5093446Smrj 
5103446Smrj 
5113446Smrj     if (Count)
5123446Smrj     {
5133446Smrj         /* Find end of the destination string */
5143446Smrj 
5153446Smrj         for (String = DstString; *String++; )
5163446Smrj         { ; }
5173446Smrj 
5183446Smrj         /* Concatenate the string */
5193446Smrj 
5203446Smrj         for (--String; (*String++ = *SrcString++) && --Count; )
5213446Smrj         { ; }
5223446Smrj 
5233446Smrj         /* Null terminate if necessary */
5243446Smrj 
5253446Smrj         if (!Count)
5263446Smrj         {
5273446Smrj             *String = 0;
5283446Smrj         }
5293446Smrj     }
5303446Smrj 
5313446Smrj     return (DstString);
5323446Smrj }
5333446Smrj 
5343446Smrj 
5353446Smrj /*******************************************************************************
5363446Smrj  *
5373446Smrj  * FUNCTION:    AcpiUtStrstr (strstr)
5383446Smrj  *
5393446Smrj  * PARAMETERS:  String1         - Target string
5403446Smrj  *              String2         - Substring to search for
5413446Smrj  *
5423446Smrj  * RETURN:      Where substring match starts, Null if no match found
5433446Smrj  *
5443446Smrj  * DESCRIPTION: Checks if String2 occurs in String1. This is not really a
5453446Smrj  *              full implementation of strstr, only sufficient for command
5463446Smrj  *              matching
5473446Smrj  *
5483446Smrj  ******************************************************************************/
5493446Smrj 
5503446Smrj char *
AcpiUtStrstr(char * String1,char * String2)5513446Smrj AcpiUtStrstr (
5523446Smrj     char                    *String1,
5533446Smrj     char                    *String2)
5543446Smrj {
5553446Smrj     char                    *String;
5563446Smrj 
5573446Smrj 
5583446Smrj     if (AcpiUtStrlen (String2) > AcpiUtStrlen (String1))
5593446Smrj     {
5603446Smrj         return (NULL);
5613446Smrj     }
5623446Smrj 
5633446Smrj     /* Walk entire string, comparing the letters */
5643446Smrj 
5653446Smrj     for (String = String1; *String2; )
5663446Smrj     {
5673446Smrj         if (*String2 != *String)
5683446Smrj         {
5693446Smrj             return (NULL);
5703446Smrj         }
5713446Smrj 
5723446Smrj         String2++;
5733446Smrj         String++;
5743446Smrj     }
5753446Smrj 
5763446Smrj     return (String1);
5773446Smrj }
5783446Smrj 
5793446Smrj 
5803446Smrj /*******************************************************************************
5813446Smrj  *
5823446Smrj  * FUNCTION:    AcpiUtStrtoul (strtoul)
5833446Smrj  *
5843446Smrj  * PARAMETERS:  String          - Null terminated string
5853446Smrj  *              Terminater      - Where a pointer to the terminating byte is
5863446Smrj  *                                returned
5873446Smrj  *              Base            - Radix of the string
5883446Smrj  *
5893446Smrj  * RETURN:      Converted value
5903446Smrj  *
5913446Smrj  * DESCRIPTION: Convert a string into a 32-bit unsigned value.
5923446Smrj  *              Note: use AcpiUtStrtoul64 for 64-bit integers.
5933446Smrj  *
5943446Smrj  ******************************************************************************/
5953446Smrj 
5963446Smrj UINT32
AcpiUtStrtoul(const char * String,char ** Terminator,UINT32 Base)5973446Smrj AcpiUtStrtoul (
5983446Smrj     const char              *String,
5993446Smrj     char                    **Terminator,
6003446Smrj     UINT32                  Base)
6013446Smrj {
6023446Smrj     UINT32                  converted = 0;
6033446Smrj     UINT32                  index;
6043446Smrj     UINT32                  sign;
6053446Smrj     const char              *StringStart;
6063446Smrj     UINT32                  ReturnValue = 0;
6073446Smrj     ACPI_STATUS             Status = AE_OK;
6083446Smrj 
6093446Smrj 
6103446Smrj     /*
6113446Smrj      * Save the value of the pointer to the buffer's first
6123446Smrj      * character, save the current errno value, and then
6133446Smrj      * skip over any white space in the buffer:
6143446Smrj      */
6153446Smrj     StringStart = String;
6163446Smrj     while (ACPI_IS_SPACE (*String) || *String == '\t')
6173446Smrj     {
6183446Smrj         ++String;
6193446Smrj     }
6203446Smrj 
6213446Smrj     /*
6223446Smrj      * The buffer may contain an optional plus or minus sign.
6233446Smrj      * If it does, then skip over it but remember what is was:
6243446Smrj      */
6253446Smrj     if (*String == '-')
6263446Smrj     {
6273446Smrj         sign = NEGATIVE;
6283446Smrj         ++String;
6293446Smrj     }
6303446Smrj     else if (*String == '+')
6313446Smrj     {
6323446Smrj         ++String;
6333446Smrj         sign = POSITIVE;
6343446Smrj     }
6353446Smrj     else
6363446Smrj     {
6373446Smrj         sign = POSITIVE;
6383446Smrj     }
6393446Smrj 
6403446Smrj     /*
6413446Smrj      * If the input parameter Base is zero, then we need to
6423446Smrj      * determine if it is octal, decimal, or hexadecimal:
6433446Smrj      */
6443446Smrj     if (Base == 0)
6453446Smrj     {
6463446Smrj         if (*String == '0')
6473446Smrj         {
6483446Smrj             if (AcpiUtToLower (*(++String)) == 'x')
6493446Smrj             {
6503446Smrj                 Base = 16;
6513446Smrj                 ++String;
6523446Smrj             }
6533446Smrj             else
6543446Smrj             {
6553446Smrj                 Base = 8;
6563446Smrj             }
6573446Smrj         }
6583446Smrj         else
6593446Smrj         {
6603446Smrj             Base = 10;
6613446Smrj         }
6623446Smrj     }
6633446Smrj     else if (Base < 2 || Base > 36)
6643446Smrj     {
6653446Smrj         /*
6663446Smrj          * The specified Base parameter is not in the domain of
6673446Smrj          * this function:
6683446Smrj          */
6693446Smrj         goto done;
6703446Smrj     }
6713446Smrj 
6723446Smrj     /*
6733446Smrj      * For octal and hexadecimal bases, skip over the leading
6743446Smrj      * 0 or 0x, if they are present.
6753446Smrj      */
6763446Smrj     if (Base == 8 && *String == '0')
6773446Smrj     {
6783446Smrj         String++;
6793446Smrj     }
6803446Smrj 
6813446Smrj     if (Base == 16 &&
6823446Smrj         *String == '0' &&
6833446Smrj         AcpiUtToLower (*(++String)) == 'x')
6843446Smrj     {
6853446Smrj         String++;
6863446Smrj     }
6873446Smrj 
6883446Smrj     /*
6893446Smrj      * Main loop: convert the string to an unsigned long:
6903446Smrj      */
6913446Smrj     while (*String)
6923446Smrj     {
6933446Smrj         if (ACPI_IS_DIGIT (*String))
6943446Smrj         {
6953446Smrj             index = (UINT32) ((UINT8) *String - '0');
6963446Smrj         }
6973446Smrj         else
6983446Smrj         {
6993446Smrj             index = (UINT32) AcpiUtToUpper (*String);
7003446Smrj             if (ACPI_IS_UPPER (index))
7013446Smrj             {
7023446Smrj                 index = index - 'A' + 10;
7033446Smrj             }
7043446Smrj             else
7053446Smrj             {
7063446Smrj                 goto done;
7073446Smrj             }
7083446Smrj         }
7093446Smrj 
7103446Smrj         if (index >= Base)
7113446Smrj         {
7123446Smrj             goto done;
7133446Smrj         }
7143446Smrj 
7153446Smrj         /*
7163446Smrj          * Check to see if value is out of range:
7173446Smrj          */
7183446Smrj 
7193446Smrj         if (ReturnValue > ((ACPI_UINT32_MAX - (UINT32) index) /
7203446Smrj                             (UINT32) Base))
7213446Smrj         {
7223446Smrj             Status = AE_ERROR;
7233446Smrj             ReturnValue = 0;           /* reset */
7243446Smrj         }
7253446Smrj         else
7263446Smrj         {
7273446Smrj             ReturnValue *= Base;
7283446Smrj             ReturnValue += index;
7293446Smrj             converted = 1;
7303446Smrj         }
7313446Smrj 
7323446Smrj         ++String;
7333446Smrj     }
7343446Smrj 
7353446Smrj done:
7363446Smrj     /*
7373446Smrj      * If appropriate, update the caller's pointer to the next
7383446Smrj      * unconverted character in the buffer.
7393446Smrj      */
7403446Smrj     if (Terminator)
7413446Smrj     {
7423446Smrj         if (converted == 0 && ReturnValue == 0 && String != NULL)
7433446Smrj         {
7443446Smrj             *Terminator = (char *) StringStart;
7453446Smrj         }
7463446Smrj         else
7473446Smrj         {
7483446Smrj             *Terminator = (char *) String;
7493446Smrj         }
7503446Smrj     }
7513446Smrj 
7523446Smrj     if (Status == AE_ERROR)
7533446Smrj     {
7543446Smrj         ReturnValue = ACPI_UINT32_MAX;
7553446Smrj     }
7563446Smrj 
7573446Smrj     /*
7583446Smrj      * If a minus sign was present, then "the conversion is negated":
7593446Smrj      */
7603446Smrj     if (sign == NEGATIVE)
7613446Smrj     {
7623446Smrj         ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1;
7633446Smrj     }
7643446Smrj 
7653446Smrj     return (ReturnValue);
7663446Smrj }
7673446Smrj 
7683446Smrj 
7693446Smrj /*******************************************************************************
7703446Smrj  *
7713446Smrj  * FUNCTION:    AcpiUtToUpper (TOUPPER)
7723446Smrj  *
7733446Smrj  * PARAMETERS:  c           - Character to convert
7743446Smrj  *
7753446Smrj  * RETURN:      Converted character as an int
7763446Smrj  *
7773446Smrj  * DESCRIPTION: Convert character to uppercase
7783446Smrj  *
7793446Smrj  ******************************************************************************/
7803446Smrj 
7813446Smrj int
AcpiUtToUpper(int c)7823446Smrj AcpiUtToUpper (
7833446Smrj     int                     c)
7843446Smrj {
7853446Smrj 
7863446Smrj     return (ACPI_IS_LOWER(c) ? ((c)-0x20) : (c));
7873446Smrj }
7883446Smrj 
7893446Smrj 
7903446Smrj /*******************************************************************************
7913446Smrj  *
7923446Smrj  * FUNCTION:    AcpiUtToLower (TOLOWER)
7933446Smrj  *
7943446Smrj  * PARAMETERS:  c           - Character to convert
7953446Smrj  *
7963446Smrj  * RETURN:      Converted character as an int
7973446Smrj  *
7983446Smrj  * DESCRIPTION: Convert character to lowercase
7993446Smrj  *
8003446Smrj  ******************************************************************************/
8013446Smrj 
8023446Smrj int
AcpiUtToLower(int c)8033446Smrj AcpiUtToLower (
8043446Smrj     int                     c)
8053446Smrj {
8063446Smrj 
8073446Smrj     return (ACPI_IS_UPPER(c) ? ((c)+0x20) : (c));
8083446Smrj }
8093446Smrj 
8103446Smrj 
8113446Smrj /*******************************************************************************
8123446Smrj  *
8133446Smrj  * FUNCTION:    is* functions
8143446Smrj  *
8153446Smrj  * DESCRIPTION: is* functions use the ctype table below
8163446Smrj  *
8173446Smrj  ******************************************************************************/
8183446Smrj 
8193446Smrj const UINT8 _acpi_ctype[257] = {
8203446Smrj     _ACPI_CN,            /* 0x0      0.     */
8213446Smrj     _ACPI_CN,            /* 0x1      1.     */
8223446Smrj     _ACPI_CN,            /* 0x2      2.     */
8233446Smrj     _ACPI_CN,            /* 0x3      3.     */
8243446Smrj     _ACPI_CN,            /* 0x4      4.     */
8253446Smrj     _ACPI_CN,            /* 0x5      5.     */
8263446Smrj     _ACPI_CN,            /* 0x6      6.     */
8273446Smrj     _ACPI_CN,            /* 0x7      7.     */
8283446Smrj     _ACPI_CN,            /* 0x8      8.     */
8293446Smrj     _ACPI_CN|_ACPI_SP,   /* 0x9      9.     */
8303446Smrj     _ACPI_CN|_ACPI_SP,   /* 0xA     10.     */
8313446Smrj     _ACPI_CN|_ACPI_SP,   /* 0xB     11.     */
8323446Smrj     _ACPI_CN|_ACPI_SP,   /* 0xC     12.     */
8333446Smrj     _ACPI_CN|_ACPI_SP,   /* 0xD     13.     */
8343446Smrj     _ACPI_CN,            /* 0xE     14.     */
8353446Smrj     _ACPI_CN,            /* 0xF     15.     */
8363446Smrj     _ACPI_CN,            /* 0x10    16.     */
8373446Smrj     _ACPI_CN,            /* 0x11    17.     */
8383446Smrj     _ACPI_CN,            /* 0x12    18.     */
8393446Smrj     _ACPI_CN,            /* 0x13    19.     */
8403446Smrj     _ACPI_CN,            /* 0x14    20.     */
8413446Smrj     _ACPI_CN,            /* 0x15    21.     */
8423446Smrj     _ACPI_CN,            /* 0x16    22.     */
8433446Smrj     _ACPI_CN,            /* 0x17    23.     */
8443446Smrj     _ACPI_CN,            /* 0x18    24.     */
8453446Smrj     _ACPI_CN,            /* 0x19    25.     */
8463446Smrj     _ACPI_CN,            /* 0x1A    26.     */
8473446Smrj     _ACPI_CN,            /* 0x1B    27.     */
8483446Smrj     _ACPI_CN,            /* 0x1C    28.     */
8493446Smrj     _ACPI_CN,            /* 0x1D    29.     */
8503446Smrj     _ACPI_CN,            /* 0x1E    30.     */
8513446Smrj     _ACPI_CN,            /* 0x1F    31.     */
8523446Smrj     _ACPI_XS|_ACPI_SP,   /* 0x20    32. ' ' */
8533446Smrj     _ACPI_PU,            /* 0x21    33. '!' */
8543446Smrj     _ACPI_PU,            /* 0x22    34. '"' */
8553446Smrj     _ACPI_PU,            /* 0x23    35. '#' */
8563446Smrj     _ACPI_PU,            /* 0x24    36. '$' */
8573446Smrj     _ACPI_PU,            /* 0x25    37. '%' */
8583446Smrj     _ACPI_PU,            /* 0x26    38. '&' */
8593446Smrj     _ACPI_PU,            /* 0x27    39. ''' */
8603446Smrj     _ACPI_PU,            /* 0x28    40. '(' */
8613446Smrj     _ACPI_PU,            /* 0x29    41. ')' */
8623446Smrj     _ACPI_PU,            /* 0x2A    42. '*' */
8633446Smrj     _ACPI_PU,            /* 0x2B    43. '+' */
8643446Smrj     _ACPI_PU,            /* 0x2C    44. ',' */
8653446Smrj     _ACPI_PU,            /* 0x2D    45. '-' */
8663446Smrj     _ACPI_PU,            /* 0x2E    46. '.' */
8673446Smrj     _ACPI_PU,            /* 0x2F    47. '/' */
8683446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x30    48. '0' */
8693446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x31    49. '1' */
8703446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x32    50. '2' */
8713446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x33    51. '3' */
8723446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x34    52. '4' */
8733446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x35    53. '5' */
8743446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x36    54. '6' */
8753446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x37    55. '7' */
8763446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x38    56. '8' */
8773446Smrj     _ACPI_XD|_ACPI_DI,   /* 0x39    57. '9' */
8783446Smrj     _ACPI_PU,            /* 0x3A    58. ':' */
8793446Smrj     _ACPI_PU,            /* 0x3B    59. ';' */
8803446Smrj     _ACPI_PU,            /* 0x3C    60. '<' */
8813446Smrj     _ACPI_PU,            /* 0x3D    61. '=' */
8823446Smrj     _ACPI_PU,            /* 0x3E    62. '>' */
8833446Smrj     _ACPI_PU,            /* 0x3F    63. '?' */
8843446Smrj     _ACPI_PU,            /* 0x40    64. '@' */
8853446Smrj     _ACPI_XD|_ACPI_UP,   /* 0x41    65. 'A' */
8863446Smrj     _ACPI_XD|_ACPI_UP,   /* 0x42    66. 'B' */
8873446Smrj     _ACPI_XD|_ACPI_UP,   /* 0x43    67. 'C' */
8883446Smrj     _ACPI_XD|_ACPI_UP,   /* 0x44    68. 'D' */
8893446Smrj     _ACPI_XD|_ACPI_UP,   /* 0x45    69. 'E' */
8903446Smrj     _ACPI_XD|_ACPI_UP,   /* 0x46    70. 'F' */
8913446Smrj     _ACPI_UP,            /* 0x47    71. 'G' */
8923446Smrj     _ACPI_UP,            /* 0x48    72. 'H' */
8933446Smrj     _ACPI_UP,            /* 0x49    73. 'I' */
8943446Smrj     _ACPI_UP,            /* 0x4A    74. 'J' */
8953446Smrj     _ACPI_UP,            /* 0x4B    75. 'K' */
8963446Smrj     _ACPI_UP,            /* 0x4C    76. 'L' */
8973446Smrj     _ACPI_UP,            /* 0x4D    77. 'M' */
8983446Smrj     _ACPI_UP,            /* 0x4E    78. 'N' */
8993446Smrj     _ACPI_UP,            /* 0x4F    79. 'O' */
9003446Smrj     _ACPI_UP,            /* 0x50    80. 'P' */
9013446Smrj     _ACPI_UP,            /* 0x51    81. 'Q' */
9023446Smrj     _ACPI_UP,            /* 0x52    82. 'R' */
9033446Smrj     _ACPI_UP,            /* 0x53    83. 'S' */
9043446Smrj     _ACPI_UP,            /* 0x54    84. 'T' */
9053446Smrj     _ACPI_UP,            /* 0x55    85. 'U' */
9063446Smrj     _ACPI_UP,            /* 0x56    86. 'V' */
9073446Smrj     _ACPI_UP,            /* 0x57    87. 'W' */
9083446Smrj     _ACPI_UP,            /* 0x58    88. 'X' */
9093446Smrj     _ACPI_UP,            /* 0x59    89. 'Y' */
9103446Smrj     _ACPI_UP,            /* 0x5A    90. 'Z' */
9113446Smrj     _ACPI_PU,            /* 0x5B    91. '[' */
9123446Smrj     _ACPI_PU,            /* 0x5C    92. '\' */
9133446Smrj     _ACPI_PU,            /* 0x5D    93. ']' */
9143446Smrj     _ACPI_PU,            /* 0x5E    94. '^' */
9153446Smrj     _ACPI_PU,            /* 0x5F    95. '_' */
9163446Smrj     _ACPI_PU,            /* 0x60    96. '`' */
9173446Smrj     _ACPI_XD|_ACPI_LO,   /* 0x61    97. 'a' */
9183446Smrj     _ACPI_XD|_ACPI_LO,   /* 0x62    98. 'b' */
9193446Smrj     _ACPI_XD|_ACPI_LO,   /* 0x63    99. 'c' */
9203446Smrj     _ACPI_XD|_ACPI_LO,   /* 0x64   100. 'd' */
9213446Smrj     _ACPI_XD|_ACPI_LO,   /* 0x65   101. 'e' */
9223446Smrj     _ACPI_XD|_ACPI_LO,   /* 0x66   102. 'f' */
9233446Smrj     _ACPI_LO,            /* 0x67   103. 'g' */
9243446Smrj     _ACPI_LO,            /* 0x68   104. 'h' */
9253446Smrj     _ACPI_LO,            /* 0x69   105. 'i' */
9263446Smrj     _ACPI_LO,            /* 0x6A   106. 'j' */
9273446Smrj     _ACPI_LO,            /* 0x6B   107. 'k' */
9283446Smrj     _ACPI_LO,            /* 0x6C   108. 'l' */
9293446Smrj     _ACPI_LO,            /* 0x6D   109. 'm' */
9303446Smrj     _ACPI_LO,            /* 0x6E   110. 'n' */
9313446Smrj     _ACPI_LO,            /* 0x6F   111. 'o' */
9323446Smrj     _ACPI_LO,            /* 0x70   112. 'p' */
9333446Smrj     _ACPI_LO,            /* 0x71   113. 'q' */
9343446Smrj     _ACPI_LO,            /* 0x72   114. 'r' */
9353446Smrj     _ACPI_LO,            /* 0x73   115. 's' */
9363446Smrj     _ACPI_LO,            /* 0x74   116. 't' */
9373446Smrj     _ACPI_LO,            /* 0x75   117. 'u' */
9383446Smrj     _ACPI_LO,            /* 0x76   118. 'v' */
9393446Smrj     _ACPI_LO,            /* 0x77   119. 'w' */
9403446Smrj     _ACPI_LO,            /* 0x78   120. 'x' */
9413446Smrj     _ACPI_LO,            /* 0x79   121. 'y' */
9423446Smrj     _ACPI_LO,            /* 0x7A   122. 'z' */
9433446Smrj     _ACPI_PU,            /* 0x7B   123. '{' */
9443446Smrj     _ACPI_PU,            /* 0x7C   124. '|' */
9453446Smrj     _ACPI_PU,            /* 0x7D   125. '}' */
9463446Smrj     _ACPI_PU,            /* 0x7E   126. '~' */
9473446Smrj     _ACPI_CN,            /* 0x7F   127.     */
9483446Smrj 
9493446Smrj     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0x80 to 0x8F    */
9503446Smrj     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0x90 to 0x9F    */
9513446Smrj     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xA0 to 0xAF    */
9523446Smrj     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xB0 to 0xBF    */
9533446Smrj     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xC0 to 0xCF    */
9543446Smrj     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xD0 to 0xDF    */
9553446Smrj     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  /* 0xE0 to 0xEF    */
9563446Smrj     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xF0 to 0x100   */
9573446Smrj };
9583446Smrj 
9593446Smrj 
9603446Smrj #endif /* ACPI_USE_SYSTEM_CLIBRARY */
9613446Smrj 
962