Hi all,

On MacOS Monterey, /usr/bin/unzip gives:

87 extra bytes at beginning or within zipfile
  (attempting to process anyway)
  inflating: road.dbf
  inflating: road.prj
  inflating: road.shp
  inflating: road.shx

And below is an excerpt of "ogrinfo -al road.shp":

Layer name: road
Metadata:
  DBF_DATE_LAST_UPDATE=2018-06-18
Geometry: Line String
Feature Count: 1
Extent: (2576803.500000, 399102.187500) - (2589745.500000, 402556.250000)

Jérome.


Le 21/11/2021 à 12:32, Seth G a écrit :
Hi all,

Following on from the post at 
https://lists.osgeo.org/pipermail/mapserver-users/2021-November/082429.html 
I've been trying to find where the cause of the corrupt zips may be.

There is a msautotest to create zip files and check against the expected 
output, however the expected output also seems to be an invalid zip file - I 
tried on both Windows and Linux.

Even stranger this is both in the main branch (simply download the file with 
the following URL to test), and also going back in the history to 2016.

https://github.com/MapServer/MapServer/blob/main/msautotest/wxs/expected/wfsogr10_shapezip.zip

I had a working process using shapezips in a 7.6 release of MapServer so its 
hard to understand what could have changed, MapServer, GDAL, or zip formats 
themselves?
I'll attempt a Git bisect but if the issue is outside MapServer it won't find 
an issue.

If anyone is able to open the zip file successfully please let me know (tried with Ark 
and unzip on Linux and Windows inbuilt unzip and 7-zip on Windows). Error seems to be 
"87 extra bytes at beginning or within zip file".

Seth

--
web:http://geographika.co.uk
twitter: @geographika
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