diff --git a/libc/include/search.h b/libc/include/search.h
index 1301a08..b2c0e6b 100644
--- a/libc/include/search.h
+++ b/libc/include/search.h
@@ -10,29 +10,34 @@
 #define _SEARCH_H_
 
 #include <sys/cdefs.h>
+#include <sys/types.h>
 
-typedef	enum {
-	preorder,
-	postorder,
-	endorder,
-	leaf
+typedef enum {
+  preorder,
+  postorder,
+  endorder,
+  leaf
 } VISIT;
 
 #ifdef _SEARCH_PRIVATE
-typedef	struct node {
-	char         *key;
-	struct node  *llink, *rlink;
+typedef struct node {
+  char* key;
+  struct node* llink;
+  struct node* rlink;
 } node_t;
 #endif
 
 __BEGIN_DECLS
-void	*tdelete(const void * __restrict, void ** __restrict,
-	    int (*)(const void *, const void *));
-void	*tfind(const void *, void * const *,
-	    int (*)(const void *, const void *));
-void	*tsearch(const void *, void **, int (*)(const void *, const void *));
-void	 twalk(const void *, void (*)(const void *, VISIT, int));
-void	 tdestroy(void *, void (*)(void *));
+
+void* lfind(const void*, const void*, size_t*, size_t, int (*)(const void*, const void*));
+void* lsearch(const void*, void*, size_t*, size_t, int (*)(const void*, const void*));
+
+void* tdelete(const void* __restrict, void** __restrict, int (*)(const void*, const void*));
+void tdestroy(void*, void (*)(void*));
+void* tfind(const void*, void* const*, int (*)(const void*, const void*));
+void* tsearch(const void*, void**, int (*)(const void*, const void*));
+void twalk(const void*, void (*)(const void*, VISIT, int));
+
 __END_DECLS
 
 #endif /* !_SEARCH_H_ */