diff --git a/libmineziper/src/libmineziper.c b/libmineziper/src/libmineziper.c
index e69de29..a6f445e 100644
--- a/libmineziper/src/libmineziper.c
+++ b/libmineziper/src/libmineziper.c
@@ -0,0 +1,17 @@
+#include "libmineziper.h"
+
+bool detect_overlaps(char* filename) {}
+
+int get_uncompressed_size(zip* in)
+{
+  int size = 0;
+
+  CDH* cdh = in->central_directory;
+  while (cdh)
+  {
+    size += cdh->lfh->size_uncompressed_data;
+    cdh = cdh++;
+  }
+
+  return size;
+}
\ No newline at end of file