Root/
| Source at commit 1292 created 12 years 8 months ago. By meklort, Add additional functions to klibc. Remove duplicates from libsa | |
|---|---|
| 1 | /*␊ |
| 2 | * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊ |
| 7 | * Reserved. This file contains Original Code and/or Modifications of␊ |
| 8 | * Original Code as defined in and that are subject to the Apple Public␊ |
| 9 | * Source License Version 2.0 (the "License"). You may not use this file␊ |
| 10 | * except in compliance with the License. Please obtain a copy of the␊ |
| 11 | * License at http://www.apple.com/publicsource and read it before using␊ |
| 12 | * this file.␊ |
| 13 | * ␊ |
| 14 | * The Original Code and all software distributed under the License are␊ |
| 15 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊ |
| 19 | * License for the specific language governing rights and limitations␊ |
| 20 | * under the License.␊ |
| 21 | * ␊ |
| 22 | * @APPLE_LICENSE_HEADER_END@␊ |
| 23 | */␊ |
| 24 | /* string operations */␊ |
| 25 | ␊ |
| 26 | #include "libsa.h"␊ |
| 27 | ␊ |
| 28 | void bcopy(const void * src, void * dst, size_t len)␊ |
| 29 | {␊ |
| 30 | asm volatile ( "cld \n\t"␊ |
| 31 | "movl %%ecx, %%edx \n\t"␊ |
| 32 | "shrl $2, %%ecx \n\t"␊ |
| 33 | "rep; movsl \n\t"␊ |
| 34 | "movl %%edx, %%ecx \n\t"␊ |
| 35 | "andl $3, %%ecx \n\t"␊ |
| 36 | "rep; movsb \n\t"␊ |
| 37 | :␊ |
| 38 | : "c" (len), "D" (dst), "S" (src)␊ |
| 39 | : "memory", "%edx" );␊ |
| 40 | }␊ |
| 41 | ␊ |
| 42 | /* #if DONT_USE_GCC_BUILT_IN_STRLEN */␊ |
| 43 | ␊ |
| 44 | #define tolower(c) ((int)((c) & ~0x20))␊ |
| 45 | #define toupper(c) ((int)((c) | 0x20))␊ |
| 46 | ␊ |
| 47 | /*#endif*/␊ |
| 48 | ␊ |
| 49 | ␊ |
| 50 | int␊ |
| 51 | ptol(const char *str)␊ |
| 52 | {␊ |
| 53 | ␉register int c = *str;␊ |
| 54 | ␊ |
| 55 | ␉if (c <= '7' && c >= '0')␊ |
| 56 | ␉␉c -= '0';␊ |
| 57 | ␉else if (c <= 'h' && c >= 'a')␊ |
| 58 | ␉␉c -= 'a';␊ |
| 59 | ␉else c = 0;␊ |
| 60 | ␉return c;␊ |
| 61 | }␊ |
| 62 | ␊ |
| 63 | ␊ |
| 64 | char* strbreak(const char *str, char **next, long *len)␊ |
| 65 | {␊ |
| 66 | char *start = (char*)str, *end;␊ |
| 67 | bool quoted = false;␊ |
| 68 | ␊ |
| 69 | if ( !start || !len )␊ |
| 70 | return 0;␊ |
| 71 | ␊ |
| 72 | *len = 0;␊ |
| 73 | ␊ |
| 74 | while ( isspace(*start) )␊ |
| 75 | start++;␊ |
| 76 | ␊ |
| 77 | if (*start == '"')␊ |
| 78 | {␊ |
| 79 | start++;␊ |
| 80 | ␊ |
| 81 | end = strchr(start, '"');␊ |
| 82 | if(end)␊ |
| 83 | quoted = true;␊ |
| 84 | else␊ |
| 85 | end = strchr(start, '\0');␊ |
| 86 | }␊ |
| 87 | else␊ |
| 88 | {␊ |
| 89 | for ( end = start; *end && !isspace(*end); end++ )␊ |
| 90 | {}␊ |
| 91 | }␊ |
| 92 | ␊ |
| 93 | *len = end - start;␊ |
| 94 | ␊ |
| 95 | if(next)␊ |
| 96 | *next = quoted ? end+1 : end;␊ |
| 97 | ␊ |
| 98 | return start;␊ |
| 99 | }␊ |
| 100 | ␊ |
| 101 | /* COPYRIGHT NOTICE: checksum8 from AppleSMBIOS */␊ |
| 102 | uint8_t checksum8( void * start, unsigned int length )␊ |
| 103 | {␊ |
| 104 | uint8_t csum = 0;␊ |
| 105 | uint8_t * cp = (uint8_t *) start;␊ |
| 106 | unsigned int i;␊ |
| 107 | ␊ |
| 108 | for ( i = 0; i < length; i++)␊ |
| 109 | csum += *cp++;␊ |
| 110 | ␊ |
| 111 | return csum;␊ |
| 112 | }␊ |
| 113 | ␊ |
| 114 | |
