diff --git a/patterns/db_files/FileBase.pat b/patterns/db_files/FileBase.pat
index f8c1883..47e22a8 100644
--- a/patterns/db_files/FileBase.pat
+++ b/patterns/db_files/FileBase.pat
@@ -45,4 +45,14 @@ fn get_toc_entry(TableOfContents toc, str entry_name) {
 fn get_offset(TableOfContents toc, str entry_name) {
     TOCEntry entry = get_toc_entry(toc, entry_name);
     return entry.offset;
+};
+
+fn get_size(TableOfContents toc, str entry_name) {
+    TOCEntry entry = get_toc_entry(toc, entry_name);
+    return entry.size;
+};
+
+fn get_end(TableOfContents toc, str entry_name) {
+    TOCEntry entry = get_toc_entry(toc, entry_name);
+    return entry.offset + entry.size + 24;
 };
\ No newline at end of file