| extern void abort (void); | |
| extern int inside_main; | |
| __attribute__ ((__noinline__)) | |
| char * | |
| strstr(const char *s1, const char *s2) | |
| { | |
| const char *p, *q; | |
| #ifdef __OPTIMIZE__ | |
| if (inside_main) | |
| abort (); | |
| #endif | |
| /* deliberately dumb algorithm */ | |
| for (; *s1; s1++) | |
| { | |
| p = s1, q = s2; | |
| while (*q && *p) | |
| { | |
| if (*q != *p) | |
| break; | |
| p++, q++; | |
| } | |
| if (*q == 0) | |
| return (char *)s1; | |
| } | |
| return 0; | |
| } |