Nothuman
15th June 2013 08:09 UTC

How to work with ntfs streams
  Hello everyone. Can you help me with NTFS-streams in NSIS, please? I can't understand how to write something in the stream.

!macro CreateNtfsStream sHandle sPath sName

  System::Call 'Kernel32::CreateFile(t, i, i, i, i, i, i) i ("${sPath}:${sName}", 0xC0000000, 7, 0, 2, 0x80, 0) .s'

  Pop ${sHandle} 

!macroend 

>!define CreateNtfsStream "!insertmacro CreateNtfsStream"


>!macro WriteNtfsStream sHandle sPath sName sText

  ...

!macroend

>!define WriteNtfsStream "!insertmacro WriteNtfsStream"


>!macro DeleteNtfsStream sHandle sPath sName

  Push '${sPath}:${sName}'

  System::Call 'Kernel32::DeleteFile((t) i (s)) .s'

   Pop ${sHandle}

!macroend

>!define DeleteNtfsStream "!insertmacro DeleteNtfsStream" 

Anders
15th June 2013 22:33 UTC

Once you have a handle you can just write to it with WriteFile, you probably don't even need the system plugin to open or delete, just use the normal instructions.

That syntax for delete looks wrong, it is Kernel32::DeleteFile(t)i AKA Kernel32::DeleteFile(ts)i.s and it returns != 0 on success, not a handle...

Nothuman
17th June 2013 17:03 UTC

Thanks for the reply.

Originally posted by Anders
you can just write to it with WriteFile

I tried, but i'm newbie in NSIS coding, and i cant write correct code syntax. That's why I ask for help.

Originally posted by Anders
Kernel32::DeleteFile(ts)i.s and it returns != 0 on success, not a handle...

It's just a variable name, but I'll keep that in my mind ;)

MSG
18th June 2013 16:15 UTC

Originally posted by Nothuman
I tried, but i'm newbie in NSIS coding, and i cant write correct code syntax. That's why I ask for help.

The manual has code examples for most commands:
http://nsis.sourceforge.net/Docs/Chapter4.html#4.9.5.8

Nothuman
18th June 2013 18:33 UTC

MSG, i will tried use FileWrite function. She is not able to record the stream.

Nothuman
19th June 2013 15:56 UTC

MSG, thanks for reminding me about that. I tried again, but differently way:

!macro WriteNtfsStream sOutput sPath sName sValue

  System::Call 'Kernel32::CreateFile(t, i, i, i, i, i, i) i ("${sPath}:${sName}", 0xC0000000, 7, 0, 2, 0x80, 0)i.s'

  Pop $1

   ClearErrors

   FileWrite$1 '${sValue}'

   IfErrors +1 +3

     StrCpy${sOutput} 0

     Goto+2

     StrCpy${sOutput} 1

    Pop${sOutput}

  System::Call 'kernel32::CloseHandle(i $1)'

>!macroend

>!define WriteNtfsStream '!insertmacro WriteNtfsStream' 

This is work fine, but one problem is left. Characters such as ض recorded as ?. Any ideas? I'm using NSIS 2.46 (Unicode).

Anders
20th June 2013 02:44 UTC

Originally posted by Nothuman
This is work fine, but one problem is left. Characters such as ض recorded as ? .

It is converted to a narrow string using the active codepage (Machine specific). If you want to write UTF16LE the fork should have a function to write out UCS2 characters at least, going outside the BMP is probably not supported. Writing UTF8 cannot be done without calling kernel32::WideCharToMultiByte and then calling kernel32::WriteFile...