> I am going to develop virtual file management. Thus I want to know
> some things.
> 1. how to determine file size _before_ file uploading or on loading
> time and how to avoid error message if file size will be too large.
You can't determine file size before uploading...
*MAYBE* with some funky JavaScript?...
> 2. how to read directory content with it's size, modes etc in win32
> and linux.
win32 doesn't have modes, really...
> 3. in what mode i should make directory for read/write permission
> (not execute). Any point to docs?
man chmod
> 4. Any other useful points to my project? I don't know all problems
> for it.
Allowing surfers to upload arbitrary files is inherently dangerous. Be
very, very careful. Just because a file isn't executable doesn't make it
"safe". EG: If you let them upload a readable file that they can trick the
browser into showing, and it contains PHP (or Perl, or JSP) code, they can
execute *that*, even though it's not executable. I'm sure there are many,
many other potential holes.
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