Comments on: FileGen http://blog.didierstevens.com (blog 'DidierStevens) Wed, 08 Feb 2012 19:23:01 +0000 hourly 1 http://wordpress.com/ By: pat http://blog.didierstevens.com/programs/filegen/#comment-44379 Fri, 15 Jul 2011 13:48:27 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-44379 Hi Didier,

Windows (since 2000): fsutil file createnew file.txt 1000000000
less than 0,1 second but it’s empty.

Best regards

]]> By: Drewfus http://blog.didierstevens.com/programs/filegen/#comment-37651 Fri, 05 Feb 2010 14:20:09 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-37651 Comprehendo!

]]> By: Didier Stevens http://blog.didierstevens.com/programs/filegen/#comment-37628 Wed, 03 Feb 2010 19:20:13 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-37628 @Drewfus: it’s faster because it is designed for Windows. I choose another design goal. My code is open source and written in standard C, hence usable on many platforms.

]]> By: Drewfus http://blog.didierstevens.com/programs/filegen/#comment-37625 Wed, 03 Feb 2010 14:24:36 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-37625 This alternative is somewhat faster, and has feedback;

http://www.bertel.de/software/rdfc/index-en.html

]]> By: Didier Stevens http://blog.didierstevens.com/programs/filegen/#comment-27604 Fri, 08 Feb 2008 09:46:01 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-27604 There is no guarantee that your plan will work. Filegen is written in standard C and is not OS specific. You can compile it for Linux too. And it is slow, because I use the function fputc to write byte per byte to the file.

There is no guarantee that the space used by a file generated with filegen will be consecutive. If you want to program with this kind of control, use the Windows Defragmentation API:
http://technet.microsoft.com/en-us/sysinternals/bb897427.aspx

If you’re looking for tool that do the job, take a look at Sysinternals:
http://technet.microsoft.com/en-us/sysinternals/bb545046.aspx
In particular, the tools contig and sdelete.

]]> By: Mehdi S http://blog.didierstevens.com/programs/filegen/#comment-27602 Fri, 08 Feb 2008 04:54:21 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-27602 Awesome….Ill use this to lock up hard disk space and prevent fragmentation :)
Could be used to overwrite free space previously written to :)

]]> By: cygwin http://blog.didierstevens.com/programs/filegen/#comment-738 Sun, 11 Mar 2007 23:57:00 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-738 Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\user_1>cat /dev/urandom | head -c 1000 > test
‘cat’은(는) 내부 또는 외부 명령, 실행할 수 있는 프로그램, 또는
배치 파일이 아닙니다.

C:\Documents and Settings\user_1>

]]> By: cygwin http://blog.didierstevens.com/programs/filegen/#comment-737 Sun, 11 Mar 2007 23:54:37 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-737 cygwin 이 머하는 거요 ??

]]> By: Luke http://blog.didierstevens.com/programs/filegen/#comment-456 Tue, 23 Jan 2007 14:41:16 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-456 Hehe… This is what happens when you post in a hurry. You are right of course in both cases. Color me embarrassed.

Either way it’s a cool tool for easily doing this under windows. I actually bookmarked this in case I need it in the future.

Btw, my cygwin installation on XP did have a /dev directory – or at least it did have /dev/random and /dev/null cause I used them in the past without any problems. Maybe it depends on which components are installed.

]]> By: Didier Stevens http://blog.didierstevens.com/programs/filegen/#comment-455 Tue, 23 Jan 2007 14:07:06 +0000 http://didierstevens.wordpress.com/programs/filegen/#comment-455 I just checked, there is no /dev directory on my Windows XP PC with Cygwin.

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