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
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
#define _GNU_SOURCE /* mempcpy */
#include <assert.h> /* assert */
#include <stddef.h> /* NULL, size_t */
#include <stdint.h> /* SIZE_MAX */
#include <string.h> /* memcpy, strcpy, strncat, strndup */
#include "alias.h" /* weak_alias */
/**
* Copy bytes in memory, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---memcpy-chk-1.html
*/
void *__memcpy_chk(void *dest, const void *src, size_t n, size_t destlen)
{
assert(dest != NULL);
assert(src != NULL);
assert(destlen >= n);
if (dest < src) {
assert((char *) dest + n <= (char *) src);
} else {
assert((char *) src + n <= (char *) dest);
}
return memcpy(dest, src, n);
}
/**
* Copy bytes in memory with overlapping areas, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---memmove-chk-1.html
*/
void *__memmove_chk(void *dest, const void *src, size_t n, size_t destlen)
{
assert(dest != NULL);
assert(src != NULL);
assert(destlen >= n);
return memmove(dest, src, n);
}
/**
* Copy bytes in memory.
*
* LSB 5.0: LSB-Core-generic/baselib---mempcpy.html
*/
void *__mempcpy(void *dest, const void *src, size_t n)
{
return mempcpy(dest, src, n);
}
/**
* Copy bytes in memory, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---mempcpy-chk-1.html
*/
void *__mempcpy_chk(void *dest, const void *src, size_t n, size_t destlen)
{
assert(dest != NULL);
assert(src != NULL);
assert(destlen >= n);
if (dest < src) {
assert((char *) dest + n <= (char *) src);
} else {
assert((char *) src + n <= (char *) dest);
}
return mempcpy(dest, src, n);
}
/**
* Set bytes in memory, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---memset-chk-1.html
*/
void *__memset_chk(void *s, int c, size_t n, size_t buflen)
{
assert(s != NULL);
assert(buflen >= n);
return memset(s, c, n);
}
/**
* Find byte in memory.
*
* LSB 5.0: LSB-Core-generic/baselib---rawmemchr.html
*/
void *__rawmemchr(const void *s, int c)
{
return memchr(s, c, SIZE_MAX);
}
weak_alias(__rawmemchr, rawmemchr);
/**
* Copy a string and return a pointer to the end of the result, with buffer
* overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---stpcpy-chk-1.html
*/
char *__stpcpy_chk(char *dest, const char *src, size_t destlen)
{
size_t n = strlen(src) + 1;
assert(dest != NULL);
assert(src != NULL);
assert(destlen >= n);
if (dest < src) {
assert(dest + n <= src);
} else {
assert(src + n <= dest);
}
return stpcpy(dest, src);
}
/**
* Copy a fixed-length string, returning a pointer to the array end, with buffer
* overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---stpncpy-chk-1.html
*/
char *__stpncpy_chk(char *dest, const char *src, size_t n, size_t destlen)
{
assert(dest != NULL);
assert(src != NULL);
assert(destlen >= n);
if (dest < src) {
assert(dest + n <= src);
} else {
assert(src + n <= dest);
}
return stpncpy(dest, src, n);
}
/**
* Concatenate two strings, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---strcat-chk-1.html
*/
char *__strcat_chk(char *dest, const char *src, size_t destlen)
{
size_t n = strlen(src) + 1;
size_t total = strnlen(dest, destlen) + n;
assert(dest != NULL);
assert(src != NULL);
assert(destlen >= total);
if (dest < src) {
assert(dest + total <= src);
} else {
assert(src + n <= dest);
}
return strcat(dest, src);
}
/**
* Copy a string, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---strcpy-chk-1.html
*/
char *__strcpy_chk(char *dest, const char *src, size_t destlen)
{
size_t n = strlen(src) + 1;
assert(dest != NULL);
assert(src != NULL);
assert(destlen >= n);
if (dest < src) {
assert(dest + n <= src);
} else {
assert(src + n <= dest);
}
return strcpy(dest, src);
}
/**
* Find the substring length of a string that does not have any two characters.
*
* Not defined in LSB 5.0. Used by spotify-client.
*/
size_t __strcspn_c2(const char *str, int bad, int bad2)
{
size_t length = 0;
const char *s = str;
while(*s != bad && *s != bad2 && *s != '\0')
{
length++;
s++;
}
return length;
}
/**
* Concatenate a string with part of another, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---strncat-chk-1.html
*/
char *__strncat_chk(char *dest, const char *src, size_t n, size_t destlen)
{
size_t total = strnlen(dest, destlen) + n + 1;
assert(dest != NULL);
assert(src != NULL);
assert(destlen >= total);
if (dest < src) {
assert(dest + total <= src);
} else {
assert(src + n <= dest);
}
return strncat(dest, src, n);
}
/**
* Copy a fixed-length string, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---strncpy-chk-1.html
*/
char *__strncpy_chk(char *dest, const char *src, size_t n, size_t destlen)
{
assert(dest != NULL);
assert(src != NULL);
assert(destlen >= n);
if (dest < src) {
assert(dest + n <= src);
} else {
assert(src + n <= dest);
}
return strncpy(dest, src, n);
}
/**
* Duplicate a specific number of bytes from a string.
*/
char *__strndup(const char *s, size_t size)
{
return strndup(s, size);
}
/**
* Extract token from string.
*
* The "global" definition of strsep in glibc, used when architecture dependent
* assembler versions aren't good enough.
*/
char *__strsep_g(char **stringp, const char *delim)
{
return strsep(stringp, delim);
}
/**
* Split string into tokens.
*
* LSB 5.0: LSB-Core-generic/baselib---strtok-r-1.html
*/
char *__strtok_r(char *s, const char *delim, char **save_ptr)
{
return strtok_r(s, delim, save_ptr);
}
|
