+#else /* !_KERNEL */
+#include <stdio.h>
+#include <strings.h>
+#include <stdlib.h>
+#define log(x, arg...) fprintf(stderr, ## arg)
+#define panic(x) fprintf(stderr, "PANIC: %s", x), exit(1)
+#define min(a, b) ((a) < (b) ? (a) : (b) )
+#include "include/net/radix.h"
+#endif /* !_KERNEL */