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Merge pull request #904 from jdpurcell/pr-7zattr

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Provide access to extended attributes for 7-zip
This commit is contained in:
Adam Hathcock
2025-03-10 08:49:33 +00:00
committed by GitHub
parent a3ac7e7ca7 88f5d4544b
commit f13f49bd71
3 changed files with 10 additions and 7 deletions
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7
src/SharpCompress/Common/SevenZip/ArchiveReader.cs
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@@ -996,6 +996,11 @@ internal class ArchiveReader
numFiles,
delegate(int i, uint? attr)
{
// Keep the original attribute value because it could potentially get
// modified in the logic that follows. Some callers of the library may
// find the original value useful.
db._files[i].ExtendedAttrib = attr;
// Some third party implementations established an unofficial extension
// of the 7z archive format by placing posix file attributes in the high
// bits of the windows file attributes. This makes use of the fact that
@@ -1458,7 +1463,7 @@ internal class ArchiveReader
#if DEBUG
Log.WriteLine(_db._files[index].Name);
#endif
if (_db._files[index].CrcDefined)
if (_db._files[index].Crc.HasValue)
{
_stream = new CrcCheckStream(_db._files[index].Crc.Value);
}

7
src/SharpCompress/Common/SevenZip/CFileItem.cs
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@@ -8,18 +8,13 @@ internal class CFileItem
{
public long Size { get; internal set; }
public uint? Attrib { get; internal set; }
public uint? ExtendedAttrib { get; internal set; }
public uint? Crc { get; internal set; }
public string Name { get; internal set; }
public bool HasStream { get; internal set; }
public bool IsDir { get; internal set; }
public bool CrcDefined => Crc != null;
public bool AttribDefined => Attrib != null;
public void SetAttrib(uint attrib) => Attrib = attrib;
public DateTime? CTime { get; internal set; }
public DateTime? ATime { get; internal set; }
public DateTime? MTime { get; internal set; }

3
src/SharpCompress/Common/SevenZip/SevenZipEntry.cs
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@@ -38,5 +38,8 @@ public class SevenZipEntry : Entry
public override int? Attrib =>
FilePart.Header.Attrib.HasValue ? (int?)FilePart.Header.Attrib.Value : null;
public int? ExtendedAttrib =>
FilePart.Header.ExtendedAttrib.HasValue ? (int?)FilePart.Header.ExtendedAttrib.Value : null;
internal override IEnumerable<FilePart> Parts => FilePart.AsEnumerable<FilePart>();
}