lib/crtdll/direct/getdfree.c

   1 #include <windows.h>
   2 #include <msvcrt/ctype.h>
   3 #include <msvcrt/direct.h>
   4
   5
   6 unsigned int _getdiskfree(unsigned int _drive, struct _diskfree_t* _diskspace)
   7 {
   8     char RootPathName[10];
   9
  10     RootPathName[0] = toupper(_drive +'@');
  11     RootPathName[1] = ':';
  12     RootPathName[2] = '\\';
  13     RootPathName[3] = 0;
  14     if (_diskspace == NULL)
  15         return 0;
  16     if (!GetDiskFreeSpaceA(RootPathName,(LPDWORD)&_diskspace->sectors_per_cluster,(LPDWORD)&_diskspace->bytes_per_sector,
  17             (LPDWORD )&_diskspace->avail_clusters,(LPDWORD )&_diskspace->total_clusters))
  18         return 0;
  19     return _diskspace->avail_clusters;
  20 }