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From: "Glaux" <glaux AT centrum DOT cz>
Newsgroups: comp.os.msdos.djgpp
Subject: statfs reports diff info under Win9x vs WinXP (using djdev 2.04)
Date: 11 Apr 2007 06:37:19 -0700
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi,
only thing I needed is to get free disk space, so I write a small
function:

QWord disk_avail(char *path)
{
  struct statfs fs;
  statfs(path,&fs);                    // nacti info o VFS do
struktury
  return((QWord)fs.f_bsize*(QWord)fs.f_bfree);
}

Under Win9x it works fine but under XP it reports much less free space
than really is but only if the free space is beyond 2GB. I think
there's somewhere some data type limitadion. Is there better way to do
this to make it working for all DOS/9x/NT ?