DiskDirectory: Initialize the directory member with valid info.

src/common/file_util.cpp

@@ -457,7 +457,7 @@ bool ForeachDirectoryEntry(unsigned* num_entries_out, const std::string &directo
         if (virtual_name == "." || virtual_name == "..")
             continue;
 
-        unsigned ret_entries;
+        unsigned ret_entries = 0;
         if (!callback(&ret_entries, directory, virtual_name)) {
             callback_error = true;
             break;

src/core/file_sys/disk_archive.cpp

@@ -139,7 +139,7 @@ bool DiskFile::Close() const {
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
-DiskDirectory::DiskDirectory(const DiskArchive& archive, const Path& path) {
+DiskDirectory::DiskDirectory(const DiskArchive& archive, const Path& path) : directory() {
     // TODO(Link Mauve): normalize path into an absolute path without "..", it can currently bypass
     // the root directory we set while opening the archive.
     // For example, opening /../../usr/bin can give the emulated program your installed programs.
@@ -149,7 +149,9 @@ DiskDirectory::DiskDirectory(const DiskArchive& archive, const Path& path) {
 bool DiskDirectory::Open() {
     if (!FileUtil::IsDirectory(path))
         return false;
-    FileUtil::ScanDirectoryTree(path, directory);
+    unsigned size = FileUtil::ScanDirectoryTree(path, directory);
+    directory.size = size;
+    directory.isDirectory = true;
     children_iterator = directory.children.begin();
     return true;
 }