From: Alan T. DeKok <aland@freeradius.org>
Date: Fri, 25 Mar 2022 19:43:43 +0000 (-0400)
Subject: add fr_tlist_parent()
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=17c6c86072946177ed88233d2d0bdad1afb42ada;p=thirdparty%2Ffreeradius-server.git

add fr_tlist_parent()
---

diff --git a/src/lib/util/tlist.h b/src/lib/util/tlist.h
index 6164a3448c..d7e4856d82 100644
--- a/src/lib/util/tlist.h
+++ b/src/lib/util/tlist.h
@@ -1035,11 +1035,19 @@ DIAG_OFF(unused-function) \
 		{		return FR_TLIST_HEAD(_name) *fr_tlist_remove_children(&ptr->_element_entry) }
 DIAG_ON(unused-function)
 
+static inline void *fr_tlist_parent(fr_tlist_head_t *list_head, void const *ptr)
+{
+	fr_tlist_t *entry;
 
-/*
- *	Functions which are specific to tlists
- */
+	if (!ptr || !list_head) return NULL;
 
+	entry = fr_tlist_item_to_entry(list_head->offset, ptr);
+	if (!entry->list_head) return NULL;
+
+	if (!entry->list_head->parent) return NULL;
+
+	return fr_tlist_entry_to_item(entry->list_head->offset, entry->list_head->parent);
+}
 
 /** Initialize a child tlist based on a parent entry
  *