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rar5: fileheader fixes

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coderb
2017-12-18 09:46:18 -05:00
parent 093a5fdf31
commit c770094425
1 changed files with 16 additions and 4 deletions
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20
src/SharpCompress/Common/Rar/Headers/FileHeader.cs
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@@ -1,3 +1,13 @@
#if !Rar2017_64bit
using nint = System.Int32;
using nuint = System.UInt32;
using size_t = System.UInt32;
#else
using nint = System.Int64;
using nuint = System.UInt64;
using size_t = System.UInt64;
#endif
using SharpCompress.IO;
using System;
using System.IO;
@@ -63,9 +73,7 @@ namespace SharpCompress.Common.Rar.Headers
CompressionMethod = (byte)((us >> 7) & 0x7);
// Bits 11 - 14 (0x3c00) define the minimum size of dictionary size required to extract data. Value 0 means 128 KB, 1 - 256 KB, ..., 14 - 2048 MB, 15 - 4096 MB.
// 2 ^ (17 + x)
R5DictSize_2_17plusX = (byte)((us >> 10) & 0xf);
//WindowSize = hd->Dir ? 0:0x10000<<((hd->Flags & LHD_WINDOWMASK)>>5)
WindowSize = IsDirectory ? 0 : ((size_t)0x20000) << ((us>>10) & 0xf);
HostOs = reader.ReadRarVIntByte();
@@ -170,6 +178,7 @@ namespace SharpCompress.Common.Rar.Headers
}
}
private static DateTime ReadExtendedTimeV5(MarkingBinaryReader reader, bool isWindowsTime)
{
if (isWindowsTime)
@@ -202,6 +211,7 @@ namespace SharpCompress.Common.Rar.Headers
{
Flags = HeaderFlags;
IsSolid = HasFlag(FileFlagsV4.Solid);
WindowSize = IsDirectory ? 0U : ((size_t)0x10000) << ((Flags & FileFlagsV4.WindowMask) >> 5);
uint lowUncompressedSize = reader.ReadUInt32();
@@ -406,8 +416,10 @@ namespace SharpCompress.Common.Rar.Headers
public bool IsSolid { get; private set; }
// unused for UnpackV1 implementation (limitation)
internal size_t WindowSize { get; private set; }
internal byte[] R4Salt { get; private set; }
internal byte R5DictSize_2_17plusX { get; private set; }
private byte HostOs { get; set; }
internal uint FileAttributes { get; private set; }