Add a function to get the path of a node in the IsoImage.

demo/find.c

@@ -23,7 +23,9 @@ print_dir(IsoDir *dir)
     cond = iso_new_find_conditions_and(c1, c2);
 	iso_dir_find_children(dir, cond, &iter);
 	while (iso_dir_iter_next(iter, &node) == 1) {
-		printf(" %s\n", iso_node_get_name(node));
+	    char *path = iso_tree_get_node_path(node);
+		printf(" %s\n", path);
+		free(path);
 	}
 	iso_dir_iter_free(iter);
 }

libisofs/libisofs.h

@@ -2955,6 +2955,16 @@ int iso_tree_add_dir_rec(IsoImage *image, IsoDir *parent, const char *dir);
  */
 int iso_tree_path_to_node(IsoImage *image, const char *path, IsoNode **node);
 
+/**
+ * Get the path on image of the given node. 
+ * 
+ * @return
+ *      The path on the image, that must be freed when no more needed. If the
+ *      given node is not added to any image, this returns NULL.
+ * @since 0.6.4
+ */
+char *iso_tree_get_node_path(IsoNode *node);
+
 /**
  * Increments the reference counting of the given IsoDataSource.
  *

libisofs/tree.c

@@ -957,3 +957,27 @@ int iso_tree_path_to_node(IsoImage *image, const char *path, IsoNode **node)
     }
     return result;
 }
+
+char *iso_tree_get_node_path(IsoNode *node)
+{
+    if (node == NULL || node->parent == NULL) {
+        return NULL;
+    }
+    
+    if ((IsoNode*)node->parent == node) {
+        return strdup("/");
+    } else {
+        char path[PATH_MAX];
+        char *parent_path = iso_tree_get_node_path((IsoNode*)node->parent);
+        if (parent_path == NULL) {
+            return NULL;
+        }
+        if (strlen(parent_path) == 1) {
+            snprintf(path, PATH_MAX, "/%s", node->name);
+        } else {
+            snprintf(path, PATH_MAX, "%s/%s", parent_path, node->name);
+        }
+        free(parent_path);
+        return strdup(path);
+    }
+}