--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fuhtark_test/include/dos.h	Wed Nov 26 21:36:48 2025 +0700
@@ -0,0 +1,55 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the w64 mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within this package.
+ */
+#ifndef _INC_DOS
+#define _INC_DOS
+
+#include <_mingw.h>
+#include <io.h>
+
+#pragma pack(push,_CRT_PACKING)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _DISKFREE_T_DEFINED
+#define _DISKFREE_T_DEFINED
+
+  struct _diskfree_t {
+    unsigned total_clusters;
+    unsigned avail_clusters;
+    unsigned sectors_per_cluster;
+    unsigned bytes_per_sector;
+  };
+#endif
+
+#define _A_NORMAL 0x00
+#define _A_RDONLY 0x01
+#define _A_HIDDEN 0x02
+#define _A_SYSTEM 0x04
+#define _A_SUBDIR 0x10
+#define _A_ARCH 0x20
+
+#ifndef _GETDISKFREE_DEFINED
+#define _GETDISKFREE_DEFINED
+  _CRTIMP unsigned __cdecl _getdiskfree(unsigned _Drive,struct _diskfree_t *_DiskFree);
+#endif
+
+#if (defined(_X86_) && !defined(__x86_64))
+  void __cdecl _disable(void);
+  void __cdecl _enable(void);
+#endif
+
+#ifndef	NO_OLDNAMES
+#define diskfree_t _diskfree_t
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#pragma pack(pop)
+#endif