hofzge

Well I see a GZipStream in there, but not knowing the actual language you use it is hard to judge what specifics that may imply. Are you sure you did proper preparation of the byte stream, namely first removing the "Zipped:" string from the stream and then doing the correct Base64 decoding before trying to pass the resulting byte stream to the GZIP function?

Thanks - being an idiot i forgot to convert from Base64 to String and this helped.

Sorry for being so cryptic: What i try to replace is this:

1. # Converts from base64 to binary   
2. function ConvertFrom-Base64($string)    
3. {   
4.    $bytes  = [system.Convert]::FromBase64String($string);   
5.    $decoded = [system.Text.Encoding]::UTF8.GetString($bytes);    
6.    return $decoded;   
7. }   
8.   
9. # Does buffered read of all bytes from a stream   
10. # returns a char array   
11. function ReadAllBytes($stream)    
12. {   
13.     $buffer = New-Object byte[](4096)      
14.     $ms = New-Object System.IO.MemoryStream   
15.   $bytesRead = 0   
16.   do   
17.     {   
18.         $bytesRead = $stream.Read($buffer, 0, $buffer.Length)   
19.     if ($bytesRead -gt 0)   
20.     {   
21.       $ms.Write($buffer, 0, $bytesRead)   
22.     }   
23.   } while ($bytesRead -gt 0)   
24.   return [system.Text.Encoding]::UTF8.GetChars($ms.ToArray())   
25. }   
26.   
27. # Removes 'Zipped:', Converts from base64 and unzips   
28. function FromBase64AndUnzip($string)   
29. {   
30.     $string = $string.Replace("Zipped:", "")   
31.     $dataBytes = [system.Convert]::FromBase64String($string)   
32.     $memStream = New-Object System.IO.MemoryStream $dataBytes, 0, $dataBytes.Count   
33.     $memStream.Position = 0   
34.     $gzipStream = New-Object System.IO.Compression.GzipStream $memStream, ([iO.Compression.CompressionMode]::Decompress)   
35.     $uncompressed = ReadAllBytes($gzipStream)   
36.     return New-Object String(($uncompressed), 0, $uncompressed.length)   
37. }  

From what i understand this is in fact a gzip stream. Am I wrong?

I already replied on NI and would like to ask here for help. Using Sam_Sharps method i try to decopress a zipped stream of and run out of memory, which seems strange as the string is only about some about 1 MB long.

Do I need to work on parts of the string? I see there is a calculation for the compression and the memory allocated to the containing the uncompressed string. How can this be so large for such a small stream?

What I did is similar to this:

Thanks!

I have a project that i took over and as part of this project drivers are packed into a .llb which is then loaded. This has all worked well in the past on my predecessors PC but I get this: