[Issue 20295] New: std.zip: zip64 with 0xff bytes in end of central dir record do not work

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20295

          Issue ID: 20295
           Summary: std.zip: zip64 with 0xff bytes in end of central dir
                    record do not work
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: bugzilla at d-ecke.de

In zip64 files, some values in the end of central dir record can be replaced by
0xff bytes. The correct values can be found elsewhere. When looking for the end
of central dir record, this has to be taken into account.

This problem has probably been introduced by PR #7198.

I've got allready a fix for this, but want to add a unittest which is more
difficult to create...

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