1 /******************************************************************************
3 * Module Name: cmclib - Local implementation of C library functions
6 *****************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999 - 2003, Intel Corp.
13 * All rights reserved.
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
38 * The above copyright and patent license is granted only if the following
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
73 * 3.4. Intel retains all right, title, and interest in and to the Original
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
81 * 4. Disclaimer and Export Compliance
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
115 *****************************************************************************/
116 /* $DragonFly: src/sys/contrib/dev/acpica/Attic/utclib.c,v 1.1 2003/09/24 03:32:16 drhodus Exp $ */
124 * These implementations of standard C Library routines can optionally be
125 * used if a C library is not available. In general, they are less efficient
126 * than an inline or assembly implementation
129 #define _COMPONENT ACPI_UTILITIES
130 ACPI_MODULE_NAME ("cmclib")
133 #ifndef ACPI_USE_SYSTEM_CLIBRARY
135 /*******************************************************************************
139 * PARAMETERS: String - Null terminated string
143 * DESCRIPTION: Returns the length of the input string
145 ******************************************************************************/
155 /* Count the string until a null is encountered */
167 /*******************************************************************************
171 * PARAMETERS: DstString - Target of the copy
172 * SrcString - The source string to copy
176 * DESCRIPTION: Copy a null terminated string
178 ******************************************************************************/
183 const char *SrcString)
185 char *String = DstString;
188 /* Move bytes brute force */
192 *String = *SrcString;
205 /*******************************************************************************
209 * PARAMETERS: DstString - Target of the copy
210 * SrcString - The source string to copy
211 * Count - Maximum # of bytes to copy
215 * DESCRIPTION: Copy a null terminated string, with a maximum length
217 ******************************************************************************/
222 const char *SrcString,
225 char *String = DstString;
228 /* Copy the string */
230 for (String = DstString;
231 Count && (Count--, (*String++ = *SrcString++)); )
234 /* Pad with nulls if necessary */
242 /* Return original pointer */
248 /*******************************************************************************
252 * PARAMETERS: String1 - First string
253 * String2 - Second string
255 * RETURN: Index where strings mismatched, or 0 if strings matched
257 * DESCRIPTION: Compare two null terminated strings
259 ******************************************************************************/
268 for ( ; (*String1 == *String2); String2++)
276 return ((unsigned char) *String1 - (unsigned char) *String2);
280 /*******************************************************************************
284 * PARAMETERS: String1 - First string
285 * String2 - Second string
286 * Count - Maximum # of bytes to compare
288 * RETURN: Index where strings mismatched, or 0 if strings matched
290 * DESCRIPTION: Compare two null terminated strings, with a maximum length
292 ******************************************************************************/
302 for ( ; Count-- && (*String1 == *String2); String2++)
310 return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *String1 -
311 (unsigned char) *String2));
315 /*******************************************************************************
319 * PARAMETERS: DstString - Target of the copy
320 * SrcString - The source string to copy
324 * DESCRIPTION: Append a null terminated string to a null terminated string
326 ******************************************************************************/
331 const char *SrcString)
336 /* Find end of the destination string */
338 for (String = DstString; *String++; )
341 /* Concatenate the string */
343 for (--String; (*String++ = *SrcString++); )
350 /*******************************************************************************
354 * PARAMETERS: DstString - Target of the copy
355 * SrcString - The source string to copy
356 * Count - Maximum # of bytes to copy
360 * DESCRIPTION: Append a null terminated string to a null terminated string,
361 * with a maximum count.
363 ******************************************************************************/
368 const char *SrcString,
376 /* Find end of the destination string */
378 for (String = DstString; *String++; )
381 /* Concatenate the string */
383 for (--String; (*String++ = *SrcString++) && --Count; )
386 /* Null terminate if necessary */
398 /*******************************************************************************
402 * PARAMETERS: Dest - Target of the copy
403 * Src - Source buffer to copy
404 * Count - Number of bytes to copy
408 * DESCRIPTION: Copy arbitrary bytes of memory
410 ******************************************************************************/
418 char *New = (char *) Dest;
419 char *Old = (char *) Src;
434 /*******************************************************************************
438 * PARAMETERS: Dest - Buffer to set
439 * Value - Value to set each byte of memory
440 * Count - Number of bytes to set
444 * DESCRIPTION: Initialize a buffer to a known value.
446 ******************************************************************************/
451 ACPI_NATIVE_UINT Value,
454 char *New = (char *) Dest;
471 const UINT8 _acpi_ctype[257] = {
472 _ACPI_CN, /* 0x0 0. */
473 _ACPI_CN, /* 0x1 1. */
474 _ACPI_CN, /* 0x2 2. */
475 _ACPI_CN, /* 0x3 3. */
476 _ACPI_CN, /* 0x4 4. */
477 _ACPI_CN, /* 0x5 5. */
478 _ACPI_CN, /* 0x6 6. */
479 _ACPI_CN, /* 0x7 7. */
480 _ACPI_CN, /* 0x8 8. */
481 _ACPI_CN|_ACPI_SP, /* 0x9 9. */
482 _ACPI_CN|_ACPI_SP, /* 0xA 10. */
483 _ACPI_CN|_ACPI_SP, /* 0xB 11. */
484 _ACPI_CN|_ACPI_SP, /* 0xC 12. */
485 _ACPI_CN|_ACPI_SP, /* 0xD 13. */
486 _ACPI_CN, /* 0xE 14. */
487 _ACPI_CN, /* 0xF 15. */
488 _ACPI_CN, /* 0x10 16. */
489 _ACPI_CN, /* 0x11 17. */
490 _ACPI_CN, /* 0x12 18. */
491 _ACPI_CN, /* 0x13 19. */
492 _ACPI_CN, /* 0x14 20. */
493 _ACPI_CN, /* 0x15 21. */
494 _ACPI_CN, /* 0x16 22. */
495 _ACPI_CN, /* 0x17 23. */
496 _ACPI_CN, /* 0x18 24. */
497 _ACPI_CN, /* 0x19 25. */
498 _ACPI_CN, /* 0x1A 26. */
499 _ACPI_CN, /* 0x1B 27. */
500 _ACPI_CN, /* 0x1C 28. */
501 _ACPI_CN, /* 0x1D 29. */
502 _ACPI_CN, /* 0x1E 30. */
503 _ACPI_CN, /* 0x1F 31. */
504 _ACPI_XS|_ACPI_SP, /* 0x20 32. ' ' */
505 _ACPI_PU, /* 0x21 33. '!' */
506 _ACPI_PU, /* 0x22 34. '"' */
507 _ACPI_PU, /* 0x23 35. '#' */
508 _ACPI_PU, /* 0x24 36. '$' */
509 _ACPI_PU, /* 0x25 37. '%' */
510 _ACPI_PU, /* 0x26 38. '&' */
511 _ACPI_PU, /* 0x27 39. ''' */
512 _ACPI_PU, /* 0x28 40. '(' */
513 _ACPI_PU, /* 0x29 41. ')' */
514 _ACPI_PU, /* 0x2A 42. '*' */
515 _ACPI_PU, /* 0x2B 43. '+' */
516 _ACPI_PU, /* 0x2C 44. ',' */
517 _ACPI_PU, /* 0x2D 45. '-' */
518 _ACPI_PU, /* 0x2E 46. '.' */
519 _ACPI_PU, /* 0x2F 47. '/' */
520 _ACPI_XD|_ACPI_DI, /* 0x30 48. '0' */
521 _ACPI_XD|_ACPI_DI, /* 0x31 49. '1' */
522 _ACPI_XD|_ACPI_DI, /* 0x32 50. '2' */
523 _ACPI_XD|_ACPI_DI, /* 0x33 51. '3' */
524 _ACPI_XD|_ACPI_DI, /* 0x34 52. '4' */
525 _ACPI_XD|_ACPI_DI, /* 0x35 53. '5' */
526 _ACPI_XD|_ACPI_DI, /* 0x36 54. '6' */
527 _ACPI_XD|_ACPI_DI, /* 0x37 55. '7' */
528 _ACPI_XD|_ACPI_DI, /* 0x38 56. '8' */
529 _ACPI_XD|_ACPI_DI, /* 0x39 57. '9' */
530 _ACPI_PU, /* 0x3A 58. ':' */
531 _ACPI_PU, /* 0x3B 59. ';' */
532 _ACPI_PU, /* 0x3C 60. '<' */
533 _ACPI_PU, /* 0x3D 61. '=' */
534 _ACPI_PU, /* 0x3E 62. '>' */
535 _ACPI_PU, /* 0x3F 63. '?' */
536 _ACPI_PU, /* 0x40 64. '@' */
537 _ACPI_XD|_ACPI_UP, /* 0x41 65. 'A' */
538 _ACPI_XD|_ACPI_UP, /* 0x42 66. 'B' */
539 _ACPI_XD|_ACPI_UP, /* 0x43 67. 'C' */
540 _ACPI_XD|_ACPI_UP, /* 0x44 68. 'D' */
541 _ACPI_XD|_ACPI_UP, /* 0x45 69. 'E' */
542 _ACPI_XD|_ACPI_UP, /* 0x46 70. 'F' */
543 _ACPI_UP, /* 0x47 71. 'G' */
544 _ACPI_UP, /* 0x48 72. 'H' */
545 _ACPI_UP, /* 0x49 73. 'I' */
546 _ACPI_UP, /* 0x4A 74. 'J' */
547 _ACPI_UP, /* 0x4B 75. 'K' */
548 _ACPI_UP, /* 0x4C 76. 'L' */
549 _ACPI_UP, /* 0x4D 77. 'M' */
550 _ACPI_UP, /* 0x4E 78. 'N' */
551 _ACPI_UP, /* 0x4F 79. 'O' */
552 _ACPI_UP, /* 0x50 80. 'P' */
553 _ACPI_UP, /* 0x51 81. 'Q' */
554 _ACPI_UP, /* 0x52 82. 'R' */
555 _ACPI_UP, /* 0x53 83. 'S' */
556 _ACPI_UP, /* 0x54 84. 'T' */
557 _ACPI_UP, /* 0x55 85. 'U' */
558 _ACPI_UP, /* 0x56 86. 'V' */
559 _ACPI_UP, /* 0x57 87. 'W' */
560 _ACPI_UP, /* 0x58 88. 'X' */
561 _ACPI_UP, /* 0x59 89. 'Y' */
562 _ACPI_UP, /* 0x5A 90. 'Z' */
563 _ACPI_PU, /* 0x5B 91. '[' */
564 _ACPI_PU, /* 0x5C 92. '\' */
565 _ACPI_PU, /* 0x5D 93. ']' */
566 _ACPI_PU, /* 0x5E 94. '^' */
567 _ACPI_PU, /* 0x5F 95. '_' */
568 _ACPI_PU, /* 0x60 96. '`' */
569 _ACPI_XD|_ACPI_LO, /* 0x61 97. 'a' */
570 _ACPI_XD|_ACPI_LO, /* 0x62 98. 'b' */
571 _ACPI_XD|_ACPI_LO, /* 0x63 99. 'c' */
572 _ACPI_XD|_ACPI_LO, /* 0x64 100. 'd' */
573 _ACPI_XD|_ACPI_LO, /* 0x65 101. 'e' */
574 _ACPI_XD|_ACPI_LO, /* 0x66 102. 'f' */
575 _ACPI_LO, /* 0x67 103. 'g' */
576 _ACPI_LO, /* 0x68 104. 'h' */
577 _ACPI_LO, /* 0x69 105. 'i' */
578 _ACPI_LO, /* 0x6A 106. 'j' */
579 _ACPI_LO, /* 0x6B 107. 'k' */
580 _ACPI_LO, /* 0x6C 108. 'l' */
581 _ACPI_LO, /* 0x6D 109. 'm' */
582 _ACPI_LO, /* 0x6E 110. 'n' */
583 _ACPI_LO, /* 0x6F 111. 'o' */
584 _ACPI_LO, /* 0x70 112. 'p' */
585 _ACPI_LO, /* 0x71 113. 'q' */
586 _ACPI_LO, /* 0x72 114. 'r' */
587 _ACPI_LO, /* 0x73 115. 's' */
588 _ACPI_LO, /* 0x74 116. 't' */
589 _ACPI_LO, /* 0x75 117. 'u' */
590 _ACPI_LO, /* 0x76 118. 'v' */
591 _ACPI_LO, /* 0x77 119. 'w' */
592 _ACPI_LO, /* 0x78 120. 'x' */
593 _ACPI_LO, /* 0x79 121. 'y' */
594 _ACPI_LO, /* 0x7A 122. 'z' */
595 _ACPI_PU, /* 0x7B 123. '{' */
596 _ACPI_PU, /* 0x7C 124. '|' */
597 _ACPI_PU, /* 0x7D 125. '}' */
598 _ACPI_PU, /* 0x7E 126. '~' */
599 _ACPI_CN, /* 0x7F 127. */
601 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x80 to 0x8F */
602 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x90 to 0x9F */
603 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xA0 to 0xAF */
604 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xB0 to 0xBF */
605 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xC0 to 0xCF */
606 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xD0 to 0xDF */
607 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xE0 to 0xEF */
608 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xF0 to 0x100 */
611 #define IS_UPPER(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_UP))
612 #define IS_LOWER(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_LO))
613 #define IS_DIGIT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_DI))
614 #define IS_SPACE(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_SP))
615 #define IS_XDIGIT(c) (_acpi_ctype[(unsigned char)(c)] & (_ACPI_XD))
618 /*******************************************************************************
620 * FUNCTION: AcpiUtToUpper
626 * DESCRIPTION: Convert character to uppercase
628 ******************************************************************************/
635 return (IS_LOWER(c) ? ((c)-0x20) : (c));
639 /*******************************************************************************
641 * FUNCTION: AcpiUtToLower
647 * DESCRIPTION: Convert character to lowercase
649 ******************************************************************************/
656 return (IS_UPPER(c) ? ((c)+0x20) : (c));
660 /*******************************************************************************
664 * PARAMETERS: String1 -
669 * DESCRIPTION: Checks if String2 occurs in String1. This is not really a
670 * full implementation of strstr, only sufficient for command
673 ******************************************************************************/
683 if (AcpiUtStrlen (String2) > AcpiUtStrlen (String1))
688 /* Walk entire string, comparing the letters */
690 for (String = String1; *String2; )
692 if (*String2 != *String)
705 /*******************************************************************************
709 * PARAMETERS: String - Null terminated string
710 * Terminater - Where a pointer to the terminating byte is returned
711 * Base - Radix of the string
713 * RETURN: Converted value
715 * DESCRIPTION: Convert a string into an unsigned value.
717 ******************************************************************************/
725 UINT32 converted = 0;
728 const char *StringStart;
729 UINT32 ReturnValue = 0;
730 ACPI_STATUS Status = AE_OK;
734 * Save the value of the pointer to the buffer's first
735 * character, save the current errno value, and then
736 * skip over any white space in the buffer:
738 StringStart = String;
739 while (IS_SPACE (*String) || *String == '\t')
745 * The buffer may contain an optional plus or minus sign.
746 * If it does, then skip over it but remember what is was:
753 else if (*String == '+')
764 * If the input parameter Base is zero, then we need to
765 * determine if it is octal, decimal, or hexadecimal:
771 if (AcpiUtToLower (*(++String)) == 'x')
786 else if (Base < 2 || Base > 36)
789 * The specified Base parameter is not in the domain of
796 * For octal and hexadecimal bases, skip over the leading
797 * 0 or 0x, if they are present.
799 if (Base == 8 && *String == '0')
806 AcpiUtToLower (*(++String)) == 'x')
813 * Main loop: convert the string to an unsigned long:
817 if (IS_DIGIT (*String))
819 index = (UINT32) ((UINT8) *String - '0');
823 index = (UINT32) AcpiUtToUpper (*String);
824 if (IS_UPPER (index))
826 index = index - 'A' + 10;
840 * Check to see if value is out of range:
843 if (ReturnValue > ((ACPI_UINT32_MAX - (UINT32) index) /
847 ReturnValue = 0; /* reset */
852 ReturnValue += index;
861 * If appropriate, update the caller's pointer to the next
862 * unconverted character in the buffer.
866 if (converted == 0 && ReturnValue == 0 && String != NULL)
868 *Terminator = (char *) StringStart;
872 *Terminator = (char *) String;
876 if (Status == AE_ERROR)
878 ReturnValue = ACPI_UINT32_MAX;
882 * If a minus sign was present, then "the conversion is negated":
884 if (sign == NEGATIVE)
886 ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1;
889 return (ReturnValue);
892 #endif /* ACPI_USE_SYSTEM_CLIBRARY */