diff --git a/include/hash.h b/include/hash.h
index 9766022..01f0d74 100644
--- a/include/hash.h
+++ b/include/hash.h
@@ -98,6 +98,10 @@ extern void del_from_resv_hash(const char *name, struct ConfItem *aconf);
 extern struct ConfItem *hash_find_resv(const char *name);
 extern void clear_resv_hash(void);
 
+void add_to_cli_fd_hash(struct Client *client_p);
+void del_from_cli_fd_hash(struct Client *client_p);
+struct Client *find_cli_fd_hash(int fd);
+
 extern void hash_stats(struct Client *);
 
 #endif /* INCLUDED_hash_h */
diff --git a/src/hash.c b/src/hash.c
index 41829bb..9801530 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -660,6 +660,37 @@ clear_resv_hash(void)
 	HASH_WALK_END
 }
 
+void
+add_to_cli_fd_hash(struct Client *client_p)
+{
+	rb_dlinkAddAlloc(client_p, &clientbyfdTable[hash_cli_fd(rb_get_fd(client_p->localClient->F))]);
+}
+
+
+void
+del_from_cli_fd_hash(struct Client *client_p)
+{
+	unsigned int hashv;
+	hashv = hash_cli_fd(rb_get_fd(client_p->localClient->F));
+	rb_dlinkFindDestroy(client_p, &clientbyfdTable[hashv]);
+}
+
+struct Client *
+find_cli_fd_hash(int fd)
+{
+	struct Client *target_p;
+	rb_dlink_node *ptr;
+	unsigned int hashv;
+	hashv = hash_cli_fd(fd);
+	RB_DLINK_FOREACH(ptr, clientbyfdTable[hashv].head)
+	{
+		target_p = ptr->data;
+		if(rb_get_fd(target_p->localClient->F) == fd)
+			return target_p;
+	}
+	return  NULL;	
+}
+
 static void
 output_hash(struct Client *source_p, const char *name, int length, int *counts, int deepest)
 {