Get File Size With Native API

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bcdsys

Joined: 04 Aug 2008
Posts: 41

bcdsys 12 Oct 2008, 18:49

Is there any efficient way get file size with native API? Or is only way read to end with ZwOpenFile or ZwCreateFile and count bytes read?

12 Oct 2008, 18:49

windwakr

Joined: 30 Jun 2004
Posts: 827

windwakr 12 Oct 2008, 19:00

I did 5 seconds of google and found this, maybe It can help? GetFileAttributesEx
Theres also GetFileSizeEx....but that requires an open file

12 Oct 2008, 19:00

asmfan

Joined: 11 Aug 2006
Posts: 392
Location: Russian

asmfan 12 Oct 2008, 19:11

ZwQueryInformationFile (FileStandardInformation / FILE_STANDARD_INFORMATION)

12 Oct 2008, 19:11

bcdsys

Joined: 04 Aug 2008
Posts: 41

bcdsys 12 Oct 2008, 19:11

That's win32 api.
How to do this native API, only NT*/Zw* functions?

EDIT: post about Windwakr post, not asmfan post. Made post when asmfan post

Last edited by bcdsys on 12 Oct 2008, 19:15; edited 1 time in total

12 Oct 2008, 19:11

windwakr

Joined: 30 Jun 2004
Posts: 827

windwakr 12 Oct 2008, 19:14

Oh, sorry...didn't understand what you wanted.

12 Oct 2008, 19:14

asmfan

Joined: 11 Aug 2006
Posts: 392
Location: Russian

asmfan 12 Oct 2008, 19:17

I did

12 Oct 2008, 19:17

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