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Posted to issues@commons.apache.org by "Stefan Bodewig (JIRA)" <ji...@apache.org> on 2010/03/12 16:15:27 UTC
[jira] Created: (COMPRESS-102) ZipArchiveOutputStream should write
a signature for data descriptrs
ZipArchiveOutputStream should write a signature for data descriptrs
-------------------------------------------------------------------
Key: COMPRESS-102
URL: https://issues.apache.org/jira/browse/COMPRESS-102
Project: Commons Compress
Issue Type: Improvement
Affects Versions: 1.0
Reporter: Stefan Bodewig
Priority: Minor
from http://www.pkware.com/documents/casestudies/APPNOTE.TXT :
{quote}
Although not originally assigned a signature, the value
0x08074b50 has commonly been adopted as a signature value
for the data descriptor record. Implementers should be
aware that ZIP files may be encountered with or without this
signature marking data descriptors and should account for
either case when reading ZIP files to ensure compatibility.
When writing ZIP files, it is recommended to include the
signature value marking the data descriptor record. When
the signature is used, the fields currently defined for
the data descriptor record will immediately follow the
signature.
{quote}
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[jira] Updated: (COMPRESS-102) ZipArchiveOutputStream should write
a signature for data descriptors
Posted by "Stefan Bodewig (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/COMPRESS-102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stefan Bodewig updated COMPRESS-102:
------------------------------------
Summary: ZipArchiveOutputStream should write a signature for data descriptors (was: ZipArchiveOutputStream should write a signature for data descriptrs)
> ZipArchiveOutputStream should write a signature for data descriptors
> --------------------------------------------------------------------
>
> Key: COMPRESS-102
> URL: https://issues.apache.org/jira/browse/COMPRESS-102
> Project: Commons Compress
> Issue Type: Improvement
> Affects Versions: 1.0
> Reporter: Stefan Bodewig
> Priority: Minor
>
> from http://www.pkware.com/documents/casestudies/APPNOTE.TXT :
> {quote}
> Although not originally assigned a signature, the value
> 0x08074b50 has commonly been adopted as a signature value
> for the data descriptor record. Implementers should be
> aware that ZIP files may be encountered with or without this
> signature marking data descriptors and should account for
> either case when reading ZIP files to ensure compatibility.
> When writing ZIP files, it is recommended to include the
> signature value marking the data descriptor record. When
> the signature is used, the fields currently defined for
> the data descriptor record will immediately follow the
> signature.
> {quote}
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[jira] Resolved: (COMPRESS-102) ZipArchiveOutputStream should write
a signature for data descriptors
Posted by "Stefan Bodewig (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/COMPRESS-102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stefan Bodewig resolved COMPRESS-102.
-------------------------------------
Resolution: Invalid
Fix Version/s: 1.0
I misread the code, it already adds the signature.
> ZipArchiveOutputStream should write a signature for data descriptors
> --------------------------------------------------------------------
>
> Key: COMPRESS-102
> URL: https://issues.apache.org/jira/browse/COMPRESS-102
> Project: Commons Compress
> Issue Type: Improvement
> Affects Versions: 1.0
> Reporter: Stefan Bodewig
> Priority: Minor
> Fix For: 1.0
>
>
> from http://www.pkware.com/documents/casestudies/APPNOTE.TXT :
> {quote}
> Although not originally assigned a signature, the value
> 0x08074b50 has commonly been adopted as a signature value
> for the data descriptor record. Implementers should be
> aware that ZIP files may be encountered with or without this
> signature marking data descriptors and should account for
> either case when reading ZIP files to ensure compatibility.
> When writing ZIP files, it is recommended to include the
> signature value marking the data descriptor record. When
> the signature is used, the fields currently defined for
> the data descriptor record will immediately follow the
> signature.
> {quote}
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