PureZIP library : ZIP / UNZIP files

Frontier · Post by **Frontier** » Thu Oct 02, 2008 7:27 am

Inner wrote:4.30 beta 2 & 3 of Purebasic reports;

The following PureLibrary is missing: StringExtension

Hi,

All gnozal's libraries expose this error, it has to do with differences in PB 4.30b2. When gnozal recompiles his libraries for PB 4.30b2 (or final) the error will disappear.

DoubleDutch · Post by **DoubleDutch** » Thu Oct 02, 2008 7:50 am

But will Gnozal be able to compile libs for PureBasic x64?

Sveinung · Post by **Sveinung** » Wed Oct 15, 2008 1:53 pm

Will PureZip be able to compress locked files?

Regards
Sveinung

GeoTrail · Post by **GeoTrail** » Wed Oct 15, 2008 2:36 pm

Locked files? As in files that are in use by other programs?

gnozal · Post by **gnozal** » Wed Oct 15, 2008 3:16 pm

Sveinung wrote:Will PureZip be able to compress locked files?

If PB's function ReadFile() can open your locked files, then probably yes. Otherwise no.

gnozal · Post by **gnozal** » Mon Nov 03, 2008 1:36 pm

Tip : how to get a ZIP archive comment with PureZIP using ZLIB function unzGetGlobalComment()

Code: Select all

;
; How to get the ZIP archive comment (if any)
;
Import "" ; maybe I add it in the next PureZIP version ....
  unzGetGlobalComment(zipFile.l, *global_comment, CommentBufLen.l) As "_unzGetGlobalComment@12"
EndImport

hZIP = PureZIP_Archive_Read("MyZIP.zip")
If hZIP
  If PureZIP_Archive_GlobalInfo(@GlobalInfo.unz_global_info) = #UNZ_OK
    If GlobalInfo\size_comment
      *Comment = AllocateMemory(GlobalInfo\size_comment)
      If *Comment
        If unzGetGlobalComment(hZIP, *Comment, GlobalInfo\size_comment)
          Debug PeekS(*Comment, GlobalInfo\size_comment) ; <--- archive comment
        EndIf
        FreeMemory(*Comment)
      EndIf
    EndIf
  EndIf
  PureZIP_Archive_Close()
EndIf

Post by **Kiffi** » Mon Nov 03, 2008 3:13 pm

gnozal wrote:Tip : how to get a ZIP archive comment with PureZIP using ZLIB function unzGetGlobalComment()

Thanks a lot!

Greetings ... Kiffi

Inf0Byt3 · Post by **Inf0Byt3** » Wed Nov 19, 2008 3:39 pm

Gnozal, I have found a fix for that #APPEND_STATUS_CREATEAFTER bug (the one that overwrites the SFX module).

In ZIP.C, in the zipOpen2() function, after this line:

Code: Select all

init_linkedlist(&(ziinit.central_dir));

Add this:

Code: Select all

    if (append == APPEND_STATUS_CREATEAFTER)
    {
      if (ZSEEK(ziinit.z_filefunc,ziinit.filestream,0,ZLIB_FILEFUNC_SEEK_END))
       {
         ZCLOSE(ziinit.z_filefunc,ziinit.filestream);
         return NULL;
       }
    }

Source:
http://forum.winimage.com/viewtopic.php?p=785&

gnozal · Post by **gnozal** » Wed Nov 19, 2008 4:22 pm

Inf0Byt3 wrote:Gnozal, I have found a fix for that #APPEND_STATUS_CREATEAFTER bug (the one that overwrites the SFX module).

Thanks.
I knew there was a fix on the forum, but the official package was never updated.
I only used the static library from the ZLIB package, I didn't compile the sources. Unfortunately, I have only (very) little experience with C, so if you (or Fizban [he already compiled a working (with PB) ZLIB static library]) could compile the fixed sources, it would be great.
Anyway, it's still possible to create a SFX : simply copy the ZIP file after the EXE. That's what I do for my library installer.

Inf0Byt3 · Post by **Inf0Byt3** » Wed Nov 19, 2008 5:49 pm

Don't have much experience either, but managed to build the new lib. However, please test it well before using. I'm not an expert

.

I compiled it using the project in \contrib\vstudio\vc8\. When I tested it, it was showing a PB linker error with __time64 or someting like that because PB doesn't know that symbol. To fix it I removed "#include <time.h>" from the source and now VC assumes it's an 'int". The code is included in case you'll need it in the future.

So the modifications are:
1. Fix that bug in Zip.c with append
2. Remove time.h so the lib can be imported without hacks in PB

Download link:

http://purebasic.myftp.org/?filename=fi ... n_v123.zip

Let me know if there are any problems

.

Anyway, it's still possible to create a SFX : simply copy the ZIP file after the EXE. That's what I do for my library installer.

Yup, but this time i wanted to make it work without any temp files

.

gnozal · Post by **gnozal** » Thu Nov 20, 2008 9:28 am

Thanks.
I made some tests, it seems to work !
I have compiled a test library [PB4.20 ANSI] : http://freenet-homepage.de/gnozal/PureZ ... dFixed.zip
Could you test it carefully to see if something got broken ?

Inf0Byt3 · Post by **Inf0Byt3** » Thu Nov 20, 2008 1:56 pm

I've made some tests with it and seems to work with no problems (XP SP3) with all the examples in the manual (from the original PureZip package). It would be great if others would test it as well, just in case.

gnozal · Post by **gnozal** » Thu Nov 20, 2008 4:12 pm

Update (All PB versions + DLL)

Changes :
- recompiled with a fixed static ZLIB [thanks Inf0Byt3].
It fixes the #APPEND_STATUS_CREATEAFTER issue. The rest should work as usual.

sec · Post by **sec** » Tue Dec 02, 2008 5:58 am

Frontier wrote:
Inner wrote:4.30 beta 2 & 3 of Purebasic reports;

The following PureLibrary is missing: StringExtension
Hi,

All gnozal's libraries expose this error, it has to do with differences in PB 4.30b2. When gnozal recompiles his libraries for PB 4.30b2 (or final) the error will disappear.

Hi gnozal,
Did you fix this error?How fix this error?

gnozal · Post by **gnozal** » Tue Dec 02, 2008 8:45 am

sec wrote:
Frontier wrote:
Inner wrote:4.30 beta 2 & 3 of Purebasic reports;
The following PureLibrary is missing: StringExtension
Hi,
All gnozal's libraries expose this error, it has to do with differences in PB 4.30b2. When gnozal recompiles his libraries for PB 4.30b2 (or final) the error will disappear.
Hi gnozal,
Did you fix this error?How fix this error?

The libs will be recompiled with PB4.30 final.