Re: AppsClock

From	Steve Fryatt <news@stevefryatt.org.uk>
Newsgroups	comp.sys.acorn.apps
Subject	Re: AppsClock
Date	2025-11-06 22:57 +0000
Organization	A noiseless patient Spider
Message-ID	<mpro.t5bug402164ga05fw.news@stevefryatt.org.uk> (permalink)
References	<5c779277b7newslists@npost.uk> <5c7794e46dNews04@avisoft.f9.co.uk> <5c779802bbnewslists@npost.uk> <5c77984d92newslists@npost.uk> <5c779dd1c4News04@avisoft.f9.co.uk>

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On 6 Nov, Martin wrote in message
    <5c779dd1c4News04@avisoft.f9.co.uk>:

> It works just fine with SparkFS v1.46 (06 Jul 2020) read-only But It fails
> with SparkFS v1.52 (08 Mar 2023)
> 
> So one of the SparkFS changes in that time broke it! (or a change provoked
> a long-time problem with the zip!)

The Zip file doesn't appear to be entirely happy to start with...

steve@ullscarf:~/Downloads$ zipdetails -v apsclk.zip 

0000 0004 50 4B 03 04 LOCAL HEADER #1       04034B50
0004 0001 00          Extract Zip Spec      00 '0.0'
0005 0001 00          Extract OS            00 'MS-DOS'
0006 0002 06 00       General Purpose Flag  0006
                      [Bit 1]               1 '8k Sliding Dictionary'
                      [Bit 2]               1 '3 Shannon-Fano Trees'
0008 0002 06 00       Compression Method    0006 'Imploded'
000A 0004 85 6D 1E 2B Last Mod Time         2B1E6D85 'Thu Aug 30 14:44:10
2001'
000E 0004 95 77 6A 72 CRC                   726A7795
0012 0004 D2 21 00 00 Compressed Length     000021D2
0016 0004 F9 5A 00 00 Uncompressed Length   00005AF9
001A 0002 10 00       Filename Length       0010
001C 0002 18 00       Extra Length          0018
001E 0010 21 41 70 70 Filename              '!AppsClock/!Help'
          73 43 6C 6F
          63 6B 2F 21
          48 65 6C 70
002E 0002 41 43       Extra ID #0001        4341 'AC: Acorn/SparkFS (David
                                            Pilling)'
0030 0002 18 00         Length              0018
0032 21D2 ...         PAYLOAD

WARNING!
Zip local header not found at offset 0x2208
Skipping 0x43b5 bytes to Central Directory...

65BD 0004 50 4B 01 02 CENTRAL HEADER #1     02014B50
65C1 0001 00          Created Zip Spec      00 '0.0'
65C2 0001 00          Created OS            00 'MS-DOS'
65C3 0001 00          Extract Zip Spec      00 '0.0'
65C4 0001 00          Extract OS            00 'MS-DOS'
65C5 0002 06 00       General Purpose Flag  0006
                      [Bit 1]               1 '8k Sliding Dictionary'
                      [Bit 2]               1 '3 Shannon-Fano Trees'
65C7 0002 06 00       Compression Method    0006 'Imploded'
65C9 0004 85 6D 1E 2B Last Mod Time         2B1E6D85 'Thu Aug 30 14:44:10
2001'
65CD 0004 95 77 6A 72 CRC                   726A7795
65D1 0004 D2 21 00 00 Compressed Length     000021D2
65D5 0004 F9 5A 00 00 Uncompressed Length   00005AF9
65D9 0002 10 00       Filename Length       0010
65DB 0002 18 00       Extra Length          0018
65DD 0002 00 00       Comment Length        0000
65DF 0002 00 00       Disk Start            0000
65E1 0002 00 00       Int File Attributes   0000
                      [Bit 0]               0 'Binary Data'
65E3 0004 20 00 00 00 Ext File Attributes   00000020
                      [Bit 5]               Archive
65E7 0004 00 00 00 00 Local Header Offset   00000000
65EB 0010 21 41 70 70 Filename              '!AppsClock/!Help'
          73 43 6C 6F
          63 6B 2F 21
          48 65 6C 70
65FB 0002 41 43       Extra ID #0001        4341 'AC: Acorn/SparkFS (David
                                            Pilling)'
65FD 0002 18 00         Length              0018


Unexpected END at offset 000065FF, value 30435241

WARNINGS

* Expected Zip header not found at offset 0x2208, skipped 0x43B5 bytes

Done
steve@ullscarf:~/Downloads$

Trying ZipInfo with verbose output reveals a lot of reports of truncated
blocks, although it can list the contents.

So a "marginal" Zip file and some regression in SparkFS? Perhaps report the
problem to ROOL (in the forums, or as a bug)?

-- 
Steve Fryatt - Leeds, England

http://www.stevefryatt.org.uk/

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AppsClock Chris Newman <newslists@npost.uk> - 2025-11-06 15:13 +0000
  Re: AppsClock Martin <News04@avisoft.f9.co.uk> - 2025-11-06 15:39 +0000
    Re: AppsClock Chris Newman <newslists@npost.uk> - 2025-11-06 16:13 +0000
      Re: AppsClock Chris Newman <newslists@npost.uk> - 2025-11-06 16:16 +0000
        Re: AppsClock Martin <News04@avisoft.f9.co.uk> - 2025-11-06 17:17 +0000
          Re: AppsClock Steve Fryatt <news@stevefryatt.org.uk> - 2025-11-06 22:57 +0000
            Re: AppsClock David Higton <dave@davehigton.me.uk> - 2025-11-07 14:36 +0000
              Re: AppsClock Jean-Michel <jmc.bruck@orange.fr> - 2025-11-07 17:17 +0100
        Re: AppsClock Paul Stewart <phorefaux@gmail.com> - 2025-11-09 10:59 +0000
          Re: AppsClock David Higton <dave@davehigton.me.uk> - 2025-11-09 19:06 +0000
            Re: AppsClock Chris Hughes <news13@noonehere.co.uk> - 2025-11-09 20:52 +0000
              Re: AppsClock David Higton <dave@davehigton.me.uk> - 2025-11-09 22:27 +0000
      Re: AppsClock Harriet Bazley <harriet@bazleyfamily.co.uk> - 2025-11-06 18:35 +0000
  Re: AppsClock Kevin Wells <kev@kevsoft.co.uk> - 2025-11-06 21:43 +0000

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