public unsafe void GetString1()
{
var blobHeapData = new byte[]
{
0, // 0
2, // 1: blob size
(byte)'a', // 2
(byte)'b', // 3
3, // 4: blob size
(byte)'x', // 5
(byte)'y', // 6
(byte)'z', // 7
3, // 8: blob size
(byte)'\\', // 9: separator
1, // 10: part #1
4, // 11: part #2
};
fixed (byte* ptr = blobHeapData)
{
var blobHeap = new BlobStreamReader(new MemoryBlock(ptr, blobHeapData.Length), MetadataKind.Ecma335);
var handle = DocumentNameBlobHandle.FromOffset(8);
var name = blobHeap.GetDocumentName(handle);
Assert.Equal(@"ab\xyz", name);
Assert.True(blobHeap.DocumentNameEquals(handle, @"ab\xyz", ignoreCase: false));
Assert.True(blobHeap.DocumentNameEquals(handle, @"Ab\xYz", ignoreCase: true));
Assert.False(blobHeap.DocumentNameEquals(handle, @"", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"a", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"ab", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"ab\", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"ab\x", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"ab\xy", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"abc\xyz", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"Ab\xYzz", ignoreCase: true));
Assert.False(blobHeap.DocumentNameEquals(handle, @"Ab\xYz\", ignoreCase: true));
}
}
public unsafe void GetString_EmptyParts()
{
var blobHeapData = new byte[]
{
0, // 0
1, // 1: blob size
(byte)'a', // 2
6, // 3: blob size
(byte)'\\', // 4: separator
0, // 5: part #1
1, // 6: part #2
0, // 7: part #3
1, // 8: part #4
0, // 9: part #5
};
fixed (byte* ptr = blobHeapData)
{
var blobHeap = new BlobStreamReader(new MemoryBlock(ptr, blobHeapData.Length), MetadataKind.Ecma335);
var handle = DocumentNameBlobHandle.FromOffset(3);
var name = blobHeap.GetDocumentName(handle);
Assert.Equal(@"\a\\a\", name);
Assert.True(blobHeap.DocumentNameEquals(handle, @"\A\\A\", ignoreCase: true));
Assert.False(blobHeap.DocumentNameEquals(handle, @"", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"\", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"\a", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"\a\", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"\a\\", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"\a\\a", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"\a\\a\a", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"\a\\aa\", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, @"\a\\\", ignoreCase: false));
}
}
private void InitializeStreamReaders(ref MemoryBlock metadataRoot, StreamHeader[] streamHeaders, out MemoryBlock metadataTableStream)
{
metadataTableStream = default(MemoryBlock);
foreach (StreamHeader streamHeader in streamHeaders)
{
switch (streamHeader.Name)
{
case COR20Constants.StringStreamName:
if (metadataRoot.Length < streamHeader.Offset + streamHeader.Size)
{
throw new BadImageFormatException(MetadataResources.NotEnoughSpaceForStringStream);
}
this.StringStream = new StringStreamReader(metadataRoot.GetMemoryBlockAt((int)streamHeader.Offset, streamHeader.Size), this.metadataKind);
break;
case COR20Constants.BlobStreamName:
if (metadataRoot.Length < streamHeader.Offset + streamHeader.Size)
{
throw new BadImageFormatException(MetadataResources.NotEnoughSpaceForBlobStream);
}
this.BlobStream = new BlobStreamReader(metadataRoot.GetMemoryBlockAt((int)streamHeader.Offset, streamHeader.Size), this.metadataKind);
break;
case COR20Constants.GUIDStreamName:
if (metadataRoot.Length < streamHeader.Offset + streamHeader.Size)
{
throw new BadImageFormatException(MetadataResources.NotEnoughSpaceForGUIDStream);
}
this.GuidStream = new GuidStreamReader(metadataRoot.GetMemoryBlockAt((int)streamHeader.Offset, streamHeader.Size));
break;
case COR20Constants.UserStringStreamName:
if (metadataRoot.Length < streamHeader.Offset + streamHeader.Size)
{
throw new BadImageFormatException(MetadataResources.NotEnoughSpaceForBlobStream);
}
this.UserStringStream = new UserStringStreamReader(metadataRoot.GetMemoryBlockAt((int)streamHeader.Offset, streamHeader.Size));
break;
case COR20Constants.CompressedMetadataTableStreamName:
if (metadataRoot.Length < streamHeader.Offset + streamHeader.Size)
{
throw new BadImageFormatException(MetadataResources.NotEnoughSpaceForMetadataStream);
}
this.metadataStreamKind = MetadataStreamKind.Compressed;
metadataTableStream = metadataRoot.GetMemoryBlockAt((int)streamHeader.Offset, streamHeader.Size);
break;
case COR20Constants.UncompressedMetadataTableStreamName:
if (metadataRoot.Length < streamHeader.Offset + streamHeader.Size)
{
throw new BadImageFormatException(MetadataResources.NotEnoughSpaceForMetadataStream);
}
this.metadataStreamKind = MetadataStreamKind.Uncompressed;
metadataTableStream = metadataRoot.GetMemoryBlockAt((int)streamHeader.Offset, streamHeader.Size);
break;
case COR20Constants.MinimalDeltaMetadataTableStreamName:
if (metadataRoot.Length < streamHeader.Offset + streamHeader.Size)
{
throw new BadImageFormatException(MetadataResources.NotEnoughSpaceForMetadataStream);
}
// the content of the stream is ignored
this.IsMinimalDelta = true;
break;
default:
// Skip unknown streams. Some obfuscators insert invalid streams.
continue;
}
}
if (IsMinimalDelta && metadataStreamKind != MetadataStreamKind.Uncompressed)
{
throw new BadImageFormatException(MetadataResources.InvalidMetadataStreamFormat);
}
}
public unsafe void GetString_Errors()
{
var blobHeapData = new byte[]
{
0, // 0
2, // 1: blob size
0x80, // 2: separator
0, // 3: part #1
};
fixed (byte* ptr = blobHeapData)
{
var blobHeap = new BlobStreamReader(new MemoryBlock(ptr, blobHeapData.Length), MetadataKind.Ecma335);
var handle = DocumentNameBlobHandle.FromOffset(1);
Assert.Throws<BadImageFormatException>(() => blobHeap.GetDocumentName(handle));
Assert.False(blobHeap.DocumentNameEquals(handle, "", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, "a", ignoreCase: false));
Assert.Throws<BadImageFormatException>(() => blobHeap.GetDocumentName(default(DocumentNameBlobHandle)));
Assert.Throws<BadImageFormatException>(() => blobHeap.GetDocumentName(DocumentNameBlobHandle.FromOffset(8)));
}
}
public unsafe void GetString_NonAscii()
{
var blobHeapData = new byte[]
{
0, // 0
3, // 1: blob size
0xe1, // 2: U+1234 in UTF8
0x88, // 3
0xb4, // 4
1, // 5: blob size
(byte)'b', // 6
4, // 7: blob size
(byte)'a', // 8: separator
5, // 9: part #1
1, // 10: part #2
5, // 11: part #3
};
fixed (byte* ptr = blobHeapData)
{
var blobHeap = new BlobStreamReader(new MemoryBlock(ptr, blobHeapData.Length), MetadataKind.Ecma335);
var handle = DocumentNameBlobHandle.FromOffset(7);
var name = blobHeap.GetDocumentName(handle);
Assert.Equal("ba\u1234ab", name);
Assert.True(blobHeap.DocumentNameEquals(handle, "ba\u1234ab", ignoreCase: false));
Assert.True(blobHeap.DocumentNameEquals(handle, "BA\u1234AB", ignoreCase: true));
Assert.False(blobHeap.DocumentNameEquals(handle, "b\u1234ab", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, "a\u1234ab", ignoreCase: false));
Assert.False(blobHeap.DocumentNameEquals(handle, "ba\u1234abb", ignoreCase: false));
}
}
public unsafe void GetString_IgnoreSeparatorCase()
{
var blobHeapData = new byte[]
{
0, // 0
1, // 1: blob size
(byte)'b', // 2
3, // 3: blob size
(byte)'a', // 4: separator
1, // 5: part #1
1, // 6: part #2
};
fixed (byte* ptr = blobHeapData)
{
var blobHeap = new BlobStreamReader(new MemoryBlock(ptr, blobHeapData.Length), MetadataKind.Ecma335);
var handle = DocumentNameBlobHandle.FromOffset(3);
var name = blobHeap.GetDocumentName(handle);
Assert.Equal("bab", name);
Assert.True(blobHeap.DocumentNameEquals(handle, "bab", ignoreCase: false));
Assert.True(blobHeap.DocumentNameEquals(handle, "BAB", ignoreCase: true));
Assert.True(blobHeap.DocumentNameEquals(handle, "bAb", ignoreCase: true));
Assert.True(blobHeap.DocumentNameEquals(handle, "BaB", ignoreCase: true));
Assert.False(blobHeap.DocumentNameEquals(handle, "", ignoreCase: true));
Assert.False(blobHeap.DocumentNameEquals(handle, "B", ignoreCase: true));
Assert.False(blobHeap.DocumentNameEquals(handle, "bA", ignoreCase: true));
Assert.False(blobHeap.DocumentNameEquals(handle, "bAbA", ignoreCase: true));
}
}
