1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/* $OpenBSD: util.h,v 1.39 2023/08/15 06:26:34 guenther Exp $ */
/*
* Copyright (c) 1998 Todd C. Miller <millert@openbsd.org>
* All rights reserved.
* Copyright (c) 1998 Per Fogelstrom, Opsycon AB
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef __DL_UTIL_H__
#define __DL_UTIL_H__
#include <sys/utsname.h>
#include <stdarg.h>
#include <stddef.h> /* for NULL */
#ifndef __boot
# if DO_CLEAN_BOOT
# define __boot __attribute__((section(".boot.text")))
# define __boot_data __attribute__((section(".boot.data")))
# else
# define __boot
# define __boot_data
# endif
#endif
__BEGIN_HIDDEN_DECLS
void _dl_malloc_init(void) __boot;
void *_dl_malloc(size_t size);
void *_dl_calloc(size_t nmemb, const size_t size);
void *_dl_realloc(void *, size_t size);
void *_dl_reallocarray(void *, size_t nmemb, size_t size);
void _dl_free(void *);
void *_dl_aligned_alloc(size_t _alignment, size_t _size);
char *_dl_strdup(const char *);
size_t _dl_strlen(const char *);
size_t _dl_strlcat(char *dst, const char *src, size_t siz);
void _dl_printf(const char *fmt, ...);
void _dl_vprintf(const char *fmt, va_list ap);
void _dl_dprintf(int, const char *fmt, ...);
void _dl_arc4randombuf(void *, size_t);
u_int32_t _dl_arc4random(void);
ssize_t _dl_write(int fd, const char* buf, size_t len);
char * _dl_dirname(const char *path);
int _dl___realpath(const char *path, char *resolved);
int _dl_uname(struct utsname *name);
long _dl_strtol(const char *nptr, char **endptr, int base);
__dead void _dl_oom(void);
__dead void _dl_die(const char *, ...) __attribute__((format (printf, 1, 2)));
#define _dl_diedie() _dl_thrkill(0, 9, NULL)
__END_HIDDEN_DECLS
#define _dl_round_page(x) \
(((x) + ((1 << _MAX_PAGE_SHIFT) - 1)) & ~((1 << _MAX_PAGE_SHIFT) - 1))
#define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
/*
* The following functions are declared inline so they can
* be used before bootstrap linking has been finished.
*/
static inline void *
_dl_memset(void *dst, const int c, size_t n)
{
if (n != 0) {
char *d = dst;
do
*d++ = c;
while (--n != 0);
}
return (dst);
}
static inline void
_dl_bcopy(const void *src, void *dest, int size)
{
unsigned const char *psrc = src;
unsigned char *pdest = dest;
int i;
for (i = 0; i < size; i++)
pdest[i] = psrc[i];
}
static inline size_t
_dl_strlcpy(char *dst, const char *src, size_t siz)
{
char *d = dst;
const char *s = src;
size_t n = siz;
/* Copy as many bytes as will fit */
if (n != 0 && --n != 0) {
do {
if ((*d++ = *s++) == 0)
break;
} while (--n != 0);
}
/* Not enough room in dst, add NUL and traverse rest of src */
if (n == 0) {
if (siz != 0)
*d = '\0'; /* NUL-terminate dst */
while (*s++)
;
}
return(s - src - 1); /* count does not include NUL */
}
static inline int
_dl_strncmp(const char *s1, const char *s2, size_t n)
{
if (n == 0)
return (0);
do {
if (*s1 != *s2++)
return (*(unsigned char *)s1 - *(unsigned char *)--s2);
if (*s1++ == 0)
break;
} while (--n != 0);
return (0);
}
static inline int
_dl_strcmp(const char *s1, const char *s2)
{
while (*s1 == *s2++)
if (*s1++ == 0)
return (0);
return (*(unsigned char *)s1 - *(unsigned char *)--s2);
}
static inline const char *
_dl_strchr(const char *p, const int ch)
{
for (;; ++p) {
if (*p == ch)
return((char *)p);
if (!*p)
return((char *)NULL);
}
/* NOTREACHED */
}
static inline char *
_dl_strrchr(const char *str, const int ch)
{
const char *p;
char *retval = NULL;
for (p = str; *p != '\0'; ++p)
if (*p == ch)
retval = (char *)p;
return retval;
}
static inline char *
_dl_strstr(const char *s, const char *find)
{
char c, sc;
size_t len;
if ((c = *find++) != 0) {
len = _dl_strlen(find);
do {
do {
if ((sc = *s++) == 0)
return (NULL);
} while (sc != c);
} while (_dl_strncmp(s, find, len) != 0);
s--;
}
return ((char *)s);
}
static inline int
_dl_isalnum(int c)
{
return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9');
}
#endif /*__DL_UTIL_H__*/
|
