/****************************************************************************** * * Module Name: cmclib - Local implementation of C library functions * $Revision: 46 $ * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp. * All rights reserved. * * 2. License * * 2.1. This is your license from Intel Corp. under its intellectual property * rights. You may have additional license terms from the party that provided * you this software, covering your right to use that party's intellectual * property rights. * * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a * copy of the source code appearing in this file ("Covered Code") an * irrevocable, perpetual, worldwide license under Intel's copyrights in the * base code distributed originally by Intel ("Original Intel Code") to copy, * make derivatives, distribute, use and display any portion of the Covered * Code in any form, with the right to sublicense such rights; and * * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent * license (with the right to sublicense), under only those claims of Intel * patents that are infringed by the Original Intel Code, to make, use, sell, * offer to sell, and import the Covered Code and derivative works thereof * solely to the minimum extent necessary to exercise the above copyright * license, and in no event shall the patent license extend to any additions * to or modifications of the Original Intel Code. No other license or right * is granted directly or by implication, estoppel or otherwise; * * The above copyright and patent license is granted only if the following * conditions are met: * * 3. Conditions * * 3.1. Redistribution of Source with Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification with rights to further distribute source must include * the above Copyright Notice, the above License, this list of Conditions, * and the following Disclaimer and Export Compliance provision. In addition, * Licensee must cause all Covered Code to which Licensee contributes to * contain a file documenting the changes Licensee made to create that Covered * Code and the date of any change. Licensee must include in that file the * documentation of any changes made by any predecessor Licensee. Licensee * must include a prominent statement that the modification is derived, * directly or indirectly, from Original Intel Code. * * 3.2. Redistribution of Source with no Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification without rights to further distribute source must * include the following Disclaimer and Export Compliance provision in the * documentation and/or other materials provided with distribution. In * addition, Licensee may not authorize further sublicense of source of any * portion of the Covered Code, and must include terms to the effect that the * license from Licensee to its licensee is limited to the intellectual * property embodied in the software Licensee provides to its licensee, and * not to intellectual property embodied in modifications its licensee may * make. * * 3.3. Redistribution of Executable. Redistribution in executable form of any * substantial portion of the Covered Code or modification must reproduce the * above Copyright Notice, and the following Disclaimer and Export Compliance * provision in the documentation and/or other materials provided with the * distribution. * * 3.4. Intel retains all right, title, and interest in and to the Original * Intel Code. * * 3.5. Neither the name Intel nor any other trademark owned or controlled by * Intel shall be used in advertising or otherwise to promote the sale, use or * other dealings in products derived from or relating to the Covered Code * without prior written authorization from Intel. * * 4. Disclaimer and Export Compliance * * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A * PARTICULAR PURPOSE. * * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY * LIMITED REMEDY. * * 4.3. Licensee shall not export, either directly or indirectly, any of this * software or system incorporating such software without first obtaining any * required license or other approval from the U. S. Department of Commerce or * any other agency or department of the United States Government. In the * event Licensee exports any such software from the United States or * re-exports any such software from a foreign destination, Licensee shall * ensure that the distribution and export/re-export of the software is in * compliance with all laws, regulations, orders, or other restrictions of the * U.S. Export Administration Regulations. Licensee agrees that neither it nor * any of its subsidiaries will export/re-export any technical data, process, * software, or service, directly or indirectly, to any country for which the * United States government or any agency thereof requires an export license, * other governmental approval, or letter of assurance, without first obtaining * such license, approval or letter. * *****************************************************************************/ #define __CMCLIB_C__ #include "acpi.h" /* * These implementations of standard C Library routines can optionally be * used if a C library is not available. In general, they are less efficient * than an inline or assembly implementation */ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME ("cmclib") #ifndef ACPI_USE_SYSTEM_CLIBRARY /******************************************************************************* * * FUNCTION: strlen * * PARAMETERS: String - Null terminated string * * RETURN: Length * * DESCRIPTION: Returns the length of the input string * ******************************************************************************/ UINT32 AcpiUtStrlen ( const NATIVE_CHAR *String) { UINT32 Length = 0; /* Count the string until a null is encountered */ while (*String) { Length++; String++; } return (Length); } /******************************************************************************* * * FUNCTION: strcpy * * PARAMETERS: DstString - Target of the copy * SrcString - The source string to copy * * RETURN: DstString * * DESCRIPTION: Copy a null terminated string * ******************************************************************************/ NATIVE_CHAR * AcpiUtStrcpy ( NATIVE_CHAR *DstString, const NATIVE_CHAR *SrcString) { NATIVE_CHAR *String = DstString; /* Move bytes brute force */ while (*SrcString) { *String = *SrcString; String++; SrcString++; } /* Null terminate */ *String = 0; return (DstString); } /******************************************************************************* * * FUNCTION: strncpy * * PARAMETERS: DstString - Target of the copy * SrcString - The source string to copy * Count - Maximum # of bytes to copy * * RETURN: DstString * * DESCRIPTION: Copy a null terminated string, with a maximum length * ******************************************************************************/ NATIVE_CHAR * AcpiUtStrncpy ( NATIVE_CHAR *DstString, const NATIVE_CHAR *SrcString, NATIVE_UINT Count) { NATIVE_CHAR *String = DstString; /* Copy the string */ for (String = DstString; Count && (Count--, (*String++ = *SrcString++)); ) {;} /* Pad with nulls if necessary */ while (Count--) { *String = 0; String++; } /* Return original pointer */ return (DstString); } /******************************************************************************* * * FUNCTION: strcmp * * PARAMETERS: String1 - First string * String2 - Second string * * RETURN: Index where strings mismatched, or 0 if strings matched * * DESCRIPTION: Compare two null terminated strings * ******************************************************************************/ UINT32 AcpiUtStrcmp ( const NATIVE_CHAR *String1, const NATIVE_CHAR *String2) { for ( ; (*String1 == *String2); String2++) { if (!*String1++) { return (0); } } return ((unsigned char) *String1 - (unsigned char) *String2); } /******************************************************************************* * * FUNCTION: strncmp * * PARAMETERS: String1 - First string * String2 - Second string * Count - Maximum # of bytes to compare * * RETURN: Index where strings mismatched, or 0 if strings matched * * DESCRIPTION: Compare two null terminated strings, with a maximum length * ******************************************************************************/ int AcpiUtStrncmp ( const NATIVE_CHAR *String1, const NATIVE_CHAR *String2, NATIVE_UINT Count) { for ( ; Count-- && (*String1 == *String2); String2++) { if (!*String1++) { return (0); } } return ((Count == ACPI_INTEGER_MAX) ? 0 : ((unsigned char) *String1 - (unsigned char) *String2)); } /******************************************************************************* * * FUNCTION: Strcat * * PARAMETERS: DstString - Target of the copy * SrcString - The source string to copy * * RETURN: DstString * * DESCRIPTION: Append a null terminated string to a null terminated string * ******************************************************************************/ NATIVE_CHAR * AcpiUtStrcat ( NATIVE_CHAR *DstString, const NATIVE_CHAR *SrcString) { NATIVE_CHAR *String; /* Find end of the destination string */ for (String = DstString; *String++; ) { ; } /* Concatenate the string */ for (--String; (*String++ = *SrcString++); ) { ; } return (DstString); } /******************************************************************************* * * FUNCTION: strncat * * PARAMETERS: DstString - Target of the copy * SrcString - The source string to copy * Count - Maximum # of bytes to copy * * RETURN: DstString * * DESCRIPTION: Append a null terminated string to a null terminated string, * with a maximum count. * ******************************************************************************/ NATIVE_CHAR * AcpiUtStrncat ( NATIVE_CHAR *DstString, const NATIVE_CHAR *SrcString, NATIVE_UINT Count) { NATIVE_CHAR *String; if (Count) { /* Find end of the destination string */ for (String = DstString; *String++; ) { ; } /* Concatenate the string */ for (--String; (*String++ = *SrcString++) && --Count; ) { ; } /* Null terminate if necessary */ if (!Count) { *String = 0; } } return (DstString); } /******************************************************************************* * * FUNCTION: memcpy * * PARAMETERS: Dest - Target of the copy * Src - Source buffer to copy * Count - Number of bytes to copy * * RETURN: Dest * * DESCRIPTION: Copy arbitrary bytes of memory * ******************************************************************************/ void * AcpiUtMemcpy ( void *Dest, const void *Src, NATIVE_UINT Count) { NATIVE_CHAR *New = (NATIVE_CHAR *) Dest; NATIVE_CHAR *Old = (NATIVE_CHAR *) Src; while (Count) { *New = *Old; New++; Old++; Count--; } return (Dest); } /******************************************************************************* * * FUNCTION: memset * * PARAMETERS: Dest - Buffer to set * Value - Value to set each byte of memory * Count - Number of bytes to set * * RETURN: Dest * * DESCRIPTION: Initialize a buffer to a known value. * ******************************************************************************/ void * AcpiUtMemset ( void *Dest, NATIVE_UINT Value, NATIVE_UINT Count) { NATIVE_CHAR *New = (NATIVE_CHAR *) Dest; while (Count) { *New = (char) Value; New++; Count--; } return (Dest); } #define NEGATIVE 1 #define POSITIVE 0 const UINT8 _acpi_ctype[257] = { _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 * ******************************************************************************/ NATIVE_CHAR * AcpiUtStrstr ( NATIVE_CHAR *String1, NATIVE_CHAR *String2) { NATIVE_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 NATIVE_CHAR *String, NATIVE_CHAR **Terminator, UINT32 Base) { UINT32 converted = 0; UINT32 index; UINT32 sign; const NATIVE_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 = 0L; /* 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 == 0L && String != NULL) { *Terminator = (NATIVE_CHAR *) StringStart; } else { *Terminator = (NATIVE_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 */