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
|
/*
* Copyright (C) 2004-2011 Christos Tsantilas
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA.
*/
#include "common.h"
#include "c-icap.h"
#include "util.h"
#include <ctype.h>
const char *ci_strnstr(const char *s, const char *find, size_t slen)
{
size_t len = strlen(find);
if (len == 0)
return NULL;
while(len <= slen) {
if (*s == *find && strncmp(s, find, len) == 0 )
return s;
s++,slen--;
}
return NULL;
}
const char *ci_strcasestr(const char *str, const char *find)
{
const char *s, *c, *f;
for (s = str; *s != '\0'; ++s) {
for (f = find, c = s; ; ++f, ++c) {
if (*f == '\0') /*find matched s*/
return s;
if (*c == '\0') /*find is longer than the remaining string */
return NULL;
if (tolower(*c) != tolower(*f))
break;
}
}
return NULL;
}
const char *ci_strncasestr(const char *s, const char *find, size_t slen)
{
size_t len = strlen(find);
if (len == 0)
return NULL;
while(len <= slen) {
if (tolower(*s) == tolower(*find) && strncasecmp(s, find, len) == 0 )
return s;
s++,slen--;
}
return NULL;
}
|
