blob: 3ca4df088d7d69bb90d2cc6401213d9edf0fce94 (
plain)
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
|
/*
* Copyright (C) 2002 Manuel Novoa III
* Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include "_string.h"
#include <ctype.h>
#ifdef __UCLIBC_HAS_XLOCALE__
#elif defined __UCLIBC_HAS_CTYPE_TABLES__
#endif
char *strcasestr(const char *s1, const char *s2)
{
register const char *s = s1;
register const char *p = s2;
#if 1
do {
if (!*p) {
return (char *) s1;;
}
if ((*p == *s)
|| (tolower(*((unsigned char *)p)) == tolower(*((unsigned char *)s)))
) {
++p;
++s;
} else {
p = s2;
if (!*s) {
return NULL;
}
s = ++s1;
}
} while (1);
#else
while (*p && *s) {
if ((*p == *s)
|| (tolower(*((unsigned char *)p)) == tolower(*((unsigned char *)s)))
) {
++p;
++s;
} else {
p = s2;
s = ++s1;
}
}
return (*p) ? NULL : (char *) s1;
#endif
}
libc_hidden_def(strcasestr)
|
