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Merge pull request #601 from salvois/master

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Write ZIP64 End of Central Directory only if needed.
This commit is contained in:
Adam Hathcock
2021-06-04 13:22:01 +01:00
committed by GitHub
parent 8ee257d299 c012db0776
commit 161f99bbad
1 changed files with 3 additions and 4 deletions
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7
src/SharpCompress/Writers/Zip/ZipWriter.cs
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@@ -238,13 +238,13 @@ namespace SharpCompress.Writers.Zip
private void WriteEndRecord(ulong size)
{
var zip64 = isZip64 || entries.Count > ushort.MaxValue || streamPosition >= uint.MaxValue || size >= uint.MaxValue;
var zip64EndOfCentralDirectoryNeeded = entries.Count > ushort.MaxValue || streamPosition >= uint.MaxValue || size >= uint.MaxValue;
var sizevalue = size >= uint.MaxValue ? uint.MaxValue : (uint)size;
var streampositionvalue = streamPosition >= uint.MaxValue ? uint.MaxValue : (uint)streamPosition;
Span<byte> intBuf = stackalloc byte[8];
if (zip64)
if (zip64EndOfCentralDirectoryNeeded)
{
var recordlen = 2 + 2 + 4 + 4 + 8 + 8 + 8 + 8;
@@ -281,8 +281,7 @@ namespace SharpCompress.Writers.Zip
BinaryPrimitives.WriteUInt32LittleEndian(intBuf, 1);
OutputStream.Write(intBuf.Slice(0, 4)); // Number of disks
streamPosition += recordlen + (4 + 4 + 8 + 4);
streampositionvalue = streamPosition >= uint.MaxValue ? uint.MaxValue : (uint)streampositionvalue;
streamPosition += 4 + 8 + recordlen + (4 + 4 + 8 + 4);
}
// Write normal end of central directory record