Ways to truncate a file

NTFSD
1

Am I missing any:

  • IRP_MJ_CREATE with SUPERSEDE/OVERWRITE
  • Delete (essentially)
  • FileEndOfFileInformation
    Any other?

–
Kind regards, Dejan M. MVP for DDK
http://www.alfasp.com E-mail: xxxxx@alfasp.com
Alfa Transparent File Encryptor - Transparent file encryption services.
Alfa File Protector - File protection and hiding library for Win32
developers.
Alfa File Monitor - File monitoring library for Win32 developers.

2

FileAllocationInformation AllocationSize zero
Seen on Win32 CreateFile TRUNCATE_EXISTING

Cheers, Lyndon

“Dejan Maksimovic” wrote in message news:xxxxx@ntfsd…
>
> Am I missing any:
> - IRP_MJ_CREATE with SUPERSEDE/OVERWRITE
> - Delete (essentially)
> - FileEndOfFileInformation
> Any other?
>
> –
> Kind regards, Dejan M. MVP for DDK
> http://www.alfasp.com E-mail: xxxxx@alfasp.com
> Alfa Transparent File Encryptor - Transparent file encryption services.
> Alfa File Protector - File protection and hiding library for Win32
> developers.
> Alfa File Monitor - File monitoring library for Win32 developers.
>
>
>