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Source at commit 1292 created 12 years 8 months ago. By meklort, Add additional functions to klibc. Remove duplicates from libsa | |
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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 |