1 files changed, 84 insertions, 0 deletions
diff --git a/include/search.h b/include/search.h
new file mode 100644
index 000000000000..0615da2b42ba
--- /dev/null
+++ b/include/search.h
@@ -0,0 +1,84 @@
+/*-
+ * Written by J.T. Conklin <jtc@NetBSD.org>
+ * Public domain.
+ *
+ *	$NetBSD: search.h,v 1.16 2005/02/03 04:39:32 perry Exp $
+ */
+
+#ifndef _SEARCH_H_
+#define _SEARCH_H_
+
+#include <sys/cdefs.h>
+#include <sys/_types.h>
+
+#ifndef _SIZE_T_DECLARED
+typedef	__size_t	size_t;
+#define	_SIZE_T_DECLARED
+#endif
+
+typedef	struct entry {
+	char	*key;
+	void	*data;
+} ENTRY;
+
+typedef	enum {
+	FIND, ENTER
+} ACTION;
+
+typedef	enum {
+	preorder,
+	postorder,
+	endorder,
+	leaf
+} VISIT;
+
+#ifdef _SEARCH_PRIVATE
+typedef struct __posix_tnode {
+	void			*key;
+	struct __posix_tnode	*llink, *rlink;
+	signed char		 balance;
+} posix_tnode;
+
+struct que_elem {
+	struct que_elem *next;
+	struct que_elem *prev;
+};
+#else
+typedef void posix_tnode;
+#endif
+
+#if __BSD_VISIBLE
+struct hsearch_data {
+	struct __hsearch *__hsearch;
+};
+#endif
+
+__BEGIN_DECLS
+int	 hcreate(size_t);
+void	 hdestroy(void);
+ENTRY	*hsearch(ENTRY, ACTION);
+void	 insque(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	 remque(void *);
+void	*tdelete(const void * __restrict, posix_tnode ** __restrict,
+	    int (*)(const void *, const void *));
+posix_tnode *
+	 tfind(const void *, posix_tnode * const *,
+	    int (*)(const void *, const void *));
+posix_tnode *
+	 tsearch(const void *, posix_tnode **,
+	    int (*)(const void *, const void *));
+void	 twalk(const posix_tnode *, void (*)(const posix_tnode *, VISIT, int));
+
+#if __BSD_VISIBLE
+int	 hcreate_r(size_t, struct hsearch_data *);
+void	 hdestroy_r(struct hsearch_data *);
+int	 hsearch_r(ENTRY, ACTION, ENTRY **, struct hsearch_data *);
+#endif
+
+__END_DECLS
+
+#endif /* !_SEARCH_H_ */