ccy/delphi-zip

Delphi System.zip patch with ZIP64 and LZMA supports

delphi-zip's Issues

TZipFile Comment

I have reported (and solve) an issue to Embarcadero : RSP-37093

You can download System.Zip2 corrected in TestZipFIle

There is a small projet to demonstrate the bug.

Best regards,
David Nardi

Please add demo for Decompression from LZMA

Please add demo for Decompression from LZMA, thanks.

Position in OnProgress resets sometimes at lage files

In the TZipFile.OnProgress-Event the Position resets sometimes.
I have a 12 GB File and was at position 4,294,770,688 of 13,123,635,712. After that again at 819,200 / 13,123,635,712.

Regards

Some bugs

Hi.

1. Constants SZipExceedNumberOfFiles and SSpecifiedFileNotFound not declared in implementation section.
2. Memory leak in TZipFile.GetEncoding. Just free FCP437Encoding in class destructor.

LZMA Compaction Example.

Hello, I've been here for several hours and I can't do the compression and even the Unzipping in the LZMA format could not attach a demo project to me.

Grateful.

decompressing a file larger than 4G, position error!

When decompressing a file larger than 4G and the progress is 4G Size, Position starts from the beginning. It is suspected that the bug in System.ZLib.pas exists in RAD11.

System.Zip.LZMA can't be used by any code, that expects TStream descendant

TLZMAEncoderStream and TLZMADecoderStream implement TStream interface incorrectly, that is why it is impossible to use them with stock System.Zip, or any other code, that expects TStream descendant. Please, implement support for reading and writing in chunks from any buffer, as expected by TStream.

Is it possible to add LZMA2 support ?

I don't see LZMA2 in TZipCompression.
Is it supported ?

File not Found LzmaDec, LzmaEnc

where can i find these files LzmaDec, LzmaEnc ??

request: Abort procedure

I think that abort procedure must be added.

not support zip files to a TStream

i want create a zip file in memory.
i do not want creat a real file.

Zip more than 65535 files

I know that you are not the one that wrote this part but do you know why there is an hard-coded file limit in System.Zip.pas ? I'm not able to find a reference a out this limit on Internet.

  if FFiles.Count = $FFFF then
    raise EZipException.CreateRes(@SZipExceedNumberOfFiles);

Cannot open this ZIP64 archive: SZipInvalidCentralHeader

Hi,

i get an error "ZipInvalidCentralHeader" opening this OPC-file:
https://github.com/3MFConsortium/lib3mf/blob/master/TestFiles/3mfbase8_VertexTet1.3mf

More testfiles (some are ZIP64) here:
https://github.com/3MFConsortium/lib3mf/blob/master/TestFiles

Best regards
Dirk
3mfbase8_VertexTet1.zip

Use a patch file instead of publishing copyrighted code

The code provided System.Zip2.pas is copyrighted code from Embarcadero. You should not be publishing their code, you should provide a patch file instead.