projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| 5d413e08 SW |
1 | #ifndef CONFIG_STRCASESTR |
| 2 | ||
| 9ad8da82 JA |
3 | #include <ctype.h> |
| 4 | #include <stddef.h> | |
| 5d413e08 | 5 | #include "strcasestr.h" |
| 2c2c93d8 | 6 | |
| 9ad8da82 JA |
7 | char *strcasestr(const char *s1, const char *s2) |
| 8 | { | |
| 9 | const char *s = s1; | |
| 10 | const char *p = s2; | |
| 11 | ||
| 12 | do { | |
| 13 | if (!*p) | |
| 14 | return (char *) s1; | |
| 15 | if ((*p == *s) || | |
| 16 | (tolower(*p) == tolower(*s))) { | |
| 17 | ++p; | |
| 18 | ++s; | |
| 19 | } else { | |
| 20 | p = s2; | |
| 21 | if (!*s) | |
| 22 | return NULL; | |
| 23 | s = ++s1; | |
| 24 | } | |
| 25 | } while (1); | |
| 26 | ||
| 27 | return *p ? NULL : (char *) s1; | |
| 28 | } | |
| 2c2c93d8 JA |
29 | |
| 30 | #endif |