From 53c2215ab3175a99224e172e82422782431b2938 Mon Sep 17 00:00:00 2001
From: Vreixo Formoso <metalpain2002@yahoo.es>
Date: Thu, 10 Jan 2008 22:10:11 +0100
Subject: [PATCH] Add function to get the parent of a given node.

---
 src/libisofs.h | 12 ++++++++++++
 src/node.c     | 15 +++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/src/libisofs.h b/src/libisofs.h
index 36b1aed..08de535 100644
--- a/src/libisofs.h
+++ b/src/libisofs.h
@@ -836,6 +836,18 @@ int iso_node_take(IsoNode *node);
  */
 int iso_node_remove(IsoNode *node);
 
+/*
+ * Get the parent of the given iso tree node. No extra ref is added to the
+ * returned directory, you must take your ref. with iso_node_ref() if you
+ * need it.
+ * 
+ * If node is the root node, the same node will be returned as its parent.
+ * 
+ * This returns NULL if the node doesn't pertain to any tree 
+ * (it was removed/take).
+ */
+IsoDir *iso_node_get_parent(IsoNode *node);
+
 /**
  * Get an iterator for the children of the given dir.
  * 
diff --git a/src/node.c b/src/node.c
index 78b0c81..0628f49 100644
--- a/src/node.c
+++ b/src/node.c
@@ -489,6 +489,21 @@ int iso_node_remove(IsoNode *node)
     return ret;
 }
 
+/*
+ * Get the parent of the given iso tree node. No extra ref is added to the
+ * returned directory, you must take your ref. with iso_node_ref() if you
+ * need it.
+ * 
+ * If node is the root node, the same node will be returned as its parent.
+ * 
+ * This returns NULL if the node doesn't pertain to any tree 
+ * (it was removed/take).
+ */
+IsoDir *iso_node_get_parent(IsoNode *node)
+{
+    return node->parent;
+}
+
 /* TODO #00005 optimize iso_dir_iter_take */
 int iso_dir_iter_take(IsoDirIter *iter)
 {