libcutils

libcutils/include/cutils/extensions.h
extensions.h
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1#ifndef CUTILS_EXTENSIONS_H
2#define CUTILS_EXTENSIONS_H
3
4#include <cutils/hedley.h>
5#include <errno.h>
6#include <stdlib.h>
7#include <cutils/backport.h>
8#include <string.h>
9#include <ctype.h>
10#include <stdarg.h>
11#include <stdio.h>
12
13int cutil_strcasecmp(const char* s1, const char* s2);
14int cutil_strncasecmp(const char* s1, const char* s2, size_t n);
15
16size_t cutil_strnlen(const char *s, size_t maxlen);
17
18char* cutil_strdup(const char *s);
19char* cutil_strndup(const char *s, size_t n);
20
21#if __STDC_VERSION__ >= 199901L
22int cutil_asprintf(char** strp, const char* format, ...);
23#endif
24
25HEDLEY_INLINE
26static void* cutil_reallocarray(void *ptr, size_t nmemb, size_t size)
27{
28 size_t new_size = nmemb * size;
29
30 if(nmemb != 0 && new_size / nmemb != size)
31 {
32 errno = ENOMEM;
33 return NULL;
34 } else {
35 return realloc(ptr, new_size);
36 }
37}
38
39HEDLEY_INLINE
40static void* cutil_reallocarray_inc(void *ptr, size_t nmemb, size_t size, size_t add)
41{
42 if(SIZE_MAX - add < size)
43 {
44 errno = ENOMEM;
45 return NULL;
46 } else {
47 return cutil_reallocarray(ptr, nmemb, size+add);
48 }
49}
50
51
52
53#endif /* CUTILS_EXTENSIONS_H */
54