• d-bugmail puremagic.com (52/52) Feb 16 2018 https://issues.dlang.org/show_bug.cgi?id=18452

d-bugmail puremagic.com writes:

https://issues.dlang.org/show_bug.cgi?id=18452

          Issue ID: 18452
           Summary: std.zip has size limit of 2 GB
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: phobos
          Assignee: nobody puremagic.com
          Reporter: andre s-e-a-p.de

I just noticed that std.zip will throw an exception if the source files exceeds
2 GB. It seems an issue with std.zip as zlib has a limit of 4 GB.

Windows 10 with x86_64 architecture.

core.exception.RangeError std\zip.d(808): Range violation
----------------
0x00007FF7C9B1705C in d_arrayboundsp
0x00007FF7C9B301FF in  safe void std.zip.ZipArchive.putUshort(int, ushort)
0x00007FF7C9B2E634 in void[] std.zip.ZipArchive.build()

    void zipFolder(string archiveFilePath, string folderPath)
    {
        import std.zip, std.file;

        ZipArchive zip = new ZipArchive();
        string folderName = folderPath.baseName;

        foreach(entry; dirEntries(folderPath, SpanMode.depth))
        {
            if (!entry.isFile)
                continue;

            ArchiveMember am = new ArchiveMember();
            am.name = entry.name[folderPath.length + 1..$];
            am.expandedData(cast(ubyte[]) read(entry.name));
            zip.addMember(am);
        }

        void[] compressed_data = zip.build(); // zip.build() will throw
        write(archiveFilePath, compressed_data);
    }

Comment from Steven Schveighoffer:
...And you are right. I looked into it a bit, this has nothing to do
(superficially) with zlib, it has to do with std.zip:

https://github.com/dlang/phobos/blob/0107a6ee09072bda9e486a12caa148dc7af7bb08/std/zip.d#L806

Really, i should be size_t in all places, I can't see why it should ever be
int.
--

And Stefan Koch:
...It was partially changed in this PR:
https://github.com/dlang/phobos/pull/2914/files
The the put methods where left at int must have been an oversight.
--

https://forum.dlang.org/post/pkhmlemvrpkroiqhugmw forum.dlang.org

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