1 #include "components.h"
2
3 #ifndef HAVE_STRDUP
strdup(const char * s)4 char *strdup(const char *s)
5 {
6 char *p = malloc((strlen(s)+1)*sizeof(char));
7 if (p)
8 strcpy(p, s);
9 return p;
10 }
11 #endif /* HAVE_STRDUP */
12
13 #ifndef HAVE_STRSTR
strstr(const char * s1,const char * s2)14 char *strstr(const char *s1, const char *s2)
15 {
16 char *p;
17 int l1 = strlen(s1);
18 int l2 = strlen(s2);
19 if (l1 < l2)
20 return NULL;
21 for(p = s1; p <= s1+l1-l2; p++)
22 if (strncmp(p, s2, l2) == 0)
23 return p;
24 return NULL;
25 }
26 #endif /* HAVE_STRSTR */
27
28 #ifndef HAVE_STRNCASECMP
29 # if STDC_HEADERS
30 # define Toupper(c) (toupper(c))
31 # else /* STDC_HEADERS */
32 # define Toupper(c) ((c)&50)
33 # endif /* STDC_HEADERS */
strncasecmp(const char * s1,const char * s2,size_t n)34 int strncasecmp(const char *s1, const char *s2, size_t n)
35 {
36 register int i;
37 for(i=0; i<n; i++) {
38 register char p1 = toupper(s1[i]), p2 = toupper(s2[i]);
39 if (p1 == '\0') {
40 if (p2 == '\0')
41 return 0;
42 else
43 return 1;
44 } else if (p2 == '\0') {
45 return -1;
46 } else if (p1 < p2) {
47 return 1;
48 } else if (p1 > p2) {
49 return -1;
50 }
51 }
52 return 0;
53 }
54 #endif /* HAVE_STRNCASECMP */
55
56 #ifndef HAVE_STRCASECMP
57 #ifndef INT_MAX
58 # define INT_MAX (sizeof(int)==4 ? 2147483647 : 32767)
59 #endif
strcasecmp(const char * s1,const char * s2)60 int strcasecmp(const char *s1, const char *s2)
61 {
62 return strncasecmp(s1, s2, INT_MAX);
63 }
64 #endif /* HAVE_STRCASECMP */
65