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-rw-r--r--lib/fstree/get_path.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/fstree/get_path.c b/lib/fstree/get_path.c
new file mode 100644
index 0000000..4b6f61e
--- /dev/null
+++ b/lib/fstree/get_path.c
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+#include "fstree.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+char *fstree_get_path(tree_node_t *node)
+{
+ tree_node_t *it;
+ char *str, *ptr;
+ size_t len = 0;
+
+ if (node->parent == NULL)
+ return strdup("/");
+
+ for (it = node; it != NULL && it->parent != NULL; it = it->parent) {
+ len += strlen(it->name) + 1;
+ }
+
+ str = malloc(len + 1);
+ if (str == NULL)
+ return NULL;
+
+ ptr = str + len;
+ *ptr = '\0';
+
+ for (it = node; it != NULL && it->parent != NULL; it = it->parent) {
+ len = strlen(it->name);
+ ptr -= len;
+
+ memcpy(ptr, it->name, len);
+ *(--ptr) = '/';
+ }
+
+ return str;
+}