Requesting updated unzip for Zip64 Support

Requesting updated unzip for Zip64 Support

[OwN-3m-All]

Any chance unzip can be updated to support Zip64?

http://www.paehl.com/open_source/downloads/unzip.7z

http://www.paehl.com/open_source/?ZIP_UNZIP

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Re: Requesting updated unzip for Zip64 Support

[Brian Inglis]

On 2017-11-09 23:25, OwN-3m-All wrote:
> Any chance unzip can be updated to support Zip64?
> http://www.paehl.com/open_source/downloads/unzip.7z
> http://www.paehl.com/open_source/?ZIP_UNZIP

Current zip has supported Zip64 since 2008 and unzip since 2009.
$ zip -v; unzip -v
should both show ZIP64_SUPPORT.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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Re: Requesting updated unzip for Zip64 Support

[OwN-3m-All]

Strange, for some reason the current version would fail on some very
large archives (8GB+), but the version I linked worked fine in these
cases too.

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Re: Requesting updated unzip for Zip64 Support

[Brian Inglis]

On 2017-11-10 08:07, OwN-3m-All wrote:
> Strange, for some reason the current version would fail on some very large
> archives (8GB+), but the version I linked worked fine in these cases too.

That's Large File Support for 4GB+ files and archives, which is also in current
versions. There could be bugs. Could you test on different systems to check?

Above GB sizes I prefer RAR, although zpaq and p7zip can be better, and p...z
utilities that parallel compress using all cores, to get close to 10% of the
original size, with better alternatives getting more than .1GB smaller than RAR.
Most orgs that deal with large archives over the net accept and produce RAR and
some can also accept and produce high compression alternatives.

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Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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Re: EXTERNAL: Re: Requesting updated unzip for Zip64 Support

[Wells, Roger K.]

On 11/10/2017 10:04 AM, Brian Inglis wrote:
> On 2017-11-09 23:25, OwN-3m-All wrote:
>> Any chance unzip can be updated to support Zip64?
>> http://www.paehl.com/open_source/downloads/unzip.7z
>> http://www.paehl.com/open_source/?ZIP_UNZIP
> Current zip has supported Zip64 since 2008 and unzip since 2009.
> $ zip -v; unzip -v
> should both show ZIP64_SUPPORT.
>
as it does on my cygwin install, uname -a:
CYGWIN_NT-10.0 rwells-x240 2.9.0(0.318/5/3) 2017-09-12 10:18 x86_64 Cygwin

zip -v
.
.
Zip special compilation options:
     USE_EF_UT_TIME       (store Universal Time)
     BZIP2_SUPPORT        (bzip2 library version 1.0.6, 6-Sept-2010)
         bzip2 code and library copyright (c) Julian R Seward
         (See the bzip2 license for terms of use)
     SYMLINK_SUPPORT      (symbolic links supported)
     LARGE_FILE_SUPPORT   (can read and write large files on file system)
     ZIP64_SUPPORT        (use Zip64 to store large files in archives)
     UNICODE_SUPPORT      (store and read UTF-8 Unicode paths)
     STORE_UNIX_UIDs_GIDs (store UID/GID sizes/values using new extra field)
     UIDGID_NOT_16BIT     (old Unix 16-bit UID/GID extra field not used)
     [encryption, version 2.91 of 05 Jan 2007] (modified for Zip 3)


unzip -v
.
.
UnZip special compilation options:
         COPYRIGHT_CLEAN (PKZIP 0.9x unreducing method not supported)
         SET_DIR_ATTRIB
         SYMLINKS (symbolic links supported, if RTL and file system permit)
         TIMESTAMP
         UNIXBACKUP
         USE_EF_UT_TIME
         USE_UNSHRINK (PKZIP/Zip 1.x unshrinking method supported)
         USE_DEFLATE64 (PKZIP 4.x Deflate64(tm) supported)
         UNICODE_SUPPORT [wide-chars, char coding: UTF-8] (handle UTF-8 
paths)
         MBCS-support (multibyte character support, MB_CUR_MAX = 6)
         LARGE_FILE_SUPPORT (large files over 2 GiB supported)
         ZIP64_SUPPORT (archives using Zip64 for large files supported)
         USE_BZIP2 (PKZIP 4.6+, using bzip2 lib version 1.0.6, 6-Sept-2010)
         VMS_TEXT_CONV
         [decryption, version 2.11 of 05 Jan 2007]

-- 
Roger Wells, P.E.
leidos
221 Third St
Newport, RI 02840
401-847-4210 (voice)
401-849-1585 (fax)
roger.k.wells@leidos.com


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