[delphizip] Re: Long filename not extracting properly
- From: "R.Peters" <russellpeters@xxxxxxxxxxx>
- To: <delphizip@xxxxxxxxxxxxx>
- Date: Sat, 3 Feb 2007 15:09:13 +1100
Thanks I can never remember the actual number.
The only ways that such a shortening of the filename should happen are UNC
or if Windows rejects the original filename as invalid - the most likely
reason for that is that it is too long.
Unfortunately there are no diagnostic messages giving the reason (I think I
should add one).
- Russell Peters
-----Original Message-----
From: delphizip-bounce@xxxxxxxxxxxxx [mailto:delphizip-bounce@xxxxxxxxxxxxx]
On Behalf Of James Turner
Sent: Saturday, February 03, 2007 12:29 PM
To: delphizip@xxxxxxxxxxxxx
Subject: [delphizip] Re: Long filename not extracting properly
Importance: High
MAX_PATH is actually 260, however, in rare circumstances, problems can occur
with filenames that exceed the maximum under DOS (i.e. max 8.3 length around
a hundred chars I think). I have also seen problems with very long part file
names (excluding the directory part). These problems are unrelated to
DelphiZip. Long filenames can also be troublesome on CDs. I haven't ever
noticed a problem with NTFS but certainly FAT32.
-- James Turner
----- Original Message -----
From: "R.Peters" <russellpeters@xxxxxxxxxxx>
To: <delphizip@xxxxxxxxxxxxx>
Sent: Friday, February 02, 2007 9:47 PM
Subject: [delphizip] Re: Long filename not extracting properly
> Freelists does not allow attachments but you could send it to
> problems@xxxxxxxxxxxxx
>
> I tested that filename without problems.
> The only thing I can think of is perhaps to total absolute extraction path
> is too long - from my unreliable memory MAX_PATH is about 420.
> A bit my information might help -
> What Windows version and disk file system (FAT or NTFS) for extraction.
> Any error or warning messages - a log file may help (needs section
> [UNZDLL])
>
> Meanwhile I will examine the code to see under what conditions it will
> truncate it (I have an idea that it is there but well buried).
>
> - Russell Peters
> -----Original Message-----
> From: delphizip-bounce@xxxxxxxxxxxxx
> [mailto:delphizip-bounce@xxxxxxxxxxxxx]
> On Behalf Of Randall Sell
> Sent: Saturday, February 03, 2007 2:32 AM
> To: delphizip@xxxxxxxxxxxxx
> Subject: [delphizip] Long filename not extracting properly
> Importance: High
>
> Hi all,
> Been using ZipMaster since 1.6. Now have latest 1.79.
>
> The zip process seems to work fine and creates all the files (all have
> fairly long names) only one does NOT extract correctly in my proejct.
>
> Real filename: "Tender Document 4.0 Terms and Conditions of
> Contract_IRB0001.doc"
> What is extracted: "Tender D.doc"
>
> Seems to have crunched it down to 8.3 size. The file in question is inside
> another dir (relative paths stored in zip) and they extract OK. so I can't
> see why this file has trouble.
>
> so then revved up the Demo1 app - expecting to see the same results. but
> it
> works! Which is good - I must have something set wrong in my app. My
> question is - does anyone have any guidance/hints as to where my
> truncation
> problem is coming from? has anyone else here seen a similar problem?
>
> I'd suspect the OS if it created like a Tender~1.doc file, but it isn't.
> It
> is just getting chopped to "Tender D.doc"
>
> Using winzip - it also extracted OK, so clearly my code must have
> something
> wrong.
>
> I shoudl mention that this proejct started with ZipMaster 1.6p and has
> chased the latest revs ever since. I did completely uninstall 1.78. So any
> guesses what might be going on here. I've attached the file. suspect file
> is
> in the "attachemnts" subfolder.
>
> thanx
> -randall
>
>
>
>
>
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> -- Binary/unsupported file stripped by Ecartis --
> -- Type: application/zip
> -- File: LongFilenameProblem.zip
> -- Desc: 2549846891-LongFilenameProblem.zip
>
>
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