[delphizip] Re: Windows 64 bit, file names > 256 characters.

  • From: Patrick Kolla-ten Venne <patrick.kolla@xxxxxxxxxxxxxxxxxxxx>
  • To: delphizip@xxxxxxxxxxxxx
  • Date: Fri, 02 Sep 2011 09:32:58 +0200

Strings in UTF8 will be the same length or longer. Never less length.
Upgrading Delphi won't change a thing.
As it has been said before, the issue is the zip header.
James Turner wrote that the length field in the zip header has a size of 
one byte. Meaning you just can't store any longer names in there. Here, 
I am confused now. I've written my own native zip structure reader code 
(because for just listing contents and checking file size & crc32, 
DelZip would be too much overhead), and my structure has FileNameLength 
as a Word (and that code works, so I doubt that's a bug ;) ). Which 
would allow longer filenames!

So in my opinion, the limitation has to be elsewhere.

Anyway, workarounds could be:

If the user never uses the .zip himself, create an additional file with 
metadata. You don't pass wildcards but the full list of files to 
TZipMaster, right? So just add each single one with a different, 
shorter, name (hash of name plus random number without path or something 
like that) and have one additional file that relates this to real names, 
which you would use in extraction.

> Will using UTF8 help. I am using Delphi 2007, Will upgrading help.
> RegardsAllan Fernandes
>
> -----------
> To unsubscribe from this list, send an empty e-mail
> message to:
>    delphizip-request@xxxxxxxxxxxxx
> and put the word unsubscribe in the subject.



-----------
To unsubscribe from this list, send an empty e-mail 
message to:
  delphizip-request@xxxxxxxxxxxxx 
and put the word unsubscribe in the subject.

Other related posts:

  1. Home
  2. delphizip
  3. Archive
  4. 09-2011