src/string/strcasestr.c

   1 #define _GNU_SOURCE
   2 #include <string.h>
   3
   4 char *strcasestr(const char *h, const char *n)
   5 {
   6         size_t l = strlen(n);
   7         for (; *h; h++) if (!strncasecmp(h, n, l)) return (char *)h;
   8         return 0;
   9 }