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Unknown Rar Header: 238 #672

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opened 2026-01-29 22:15:35 +00:00 by claunia · 0 comments
claunia commented 2026-01-29 22:15:35 +00:00
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Originally created by @majorro on GitHub (Jan 21, 2025).

Exception:

SharpCompress.Common.InvalidFormatException: Unknown Rar Header: 238
   at SharpCompress.Common.Rar.Headers.RarHeaderFactory.TryReadNextHeader(Stream stream)
   at SharpCompress.Common.Rar.Headers.RarHeaderFactory.ReadHeaders(Stream stream)+MoveNext()
   at SharpCompress.Common.Rar.RarVolume.GetVolumeFileParts()+MoveNext()
   at SharpCompress.Readers.Rar.RarReader.GetEntries(Stream stream)+MoveNext()
   at SharpCompress.Readers.AbstractReader`2.NextEntryForCurrentStream()
   at SharpCompress.Readers.AbstractReader`2.MoveToNextEntry()

Code:

using var fs = File.Open("F:\\Rar.rar", FileMode.Open);
using var reader = ReaderFactory.Open(fs);
while (reader.MoveToNextEntry())
{
}

Happens when moving to the 8th track in archive

No issues with winrar

Originally created by @majorro on GitHub (Jan 21, 2025). Exception: ``` SharpCompress.Common.InvalidFormatException: Unknown Rar Header: 238 at SharpCompress.Common.Rar.Headers.RarHeaderFactory.TryReadNextHeader(Stream stream) at SharpCompress.Common.Rar.Headers.RarHeaderFactory.ReadHeaders(Stream stream)+MoveNext() at SharpCompress.Common.Rar.RarVolume.GetVolumeFileParts()+MoveNext() at SharpCompress.Readers.Rar.RarReader.GetEntries(Stream stream)+MoveNext() at SharpCompress.Readers.AbstractReader`2.NextEntryForCurrentStream() at SharpCompress.Readers.AbstractReader`2.MoveToNextEntry() ``` Code: ``` using var fs = File.Open("F:\\Rar.rar", FileMode.Open); using var reader = ReaderFactory.Open(fs); while (reader.MoveToNextEntry()) { } ``` Happens when moving to the 8th track in [archive](https://vk.com/doc322150273_437251882?hash=zE9Yxg87k384IbiReOcv0vvAiShZw6J4ngpE83PY0jP&dl=WueLvzsvyFCInvr1zuowseaFrt8bvUTlgZ1u96wyreT&api=1&no_preview=1) No issues with winrar
claunia added the bugup for grabs labels 2026-01-29 22:15:35 +00:00
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Reference: starred/sharpcompress#672
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