When SftpFileStream.Seek() is called with the origin parameter set to SeekOrigin.End and a negative offset, the resulting position is greater than the size of the stream. This is because the negative offset is subtracted from the total size, instead of added.
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newPosn = attributes.Size - offset; |
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newPosn = attributes.Size - offset; |
size offset
1000 - (-42) = 1042
1000 + (-42) = 958
Failed test using SftpFileStream.Seek():
FluentAssertions.Execution.AssertionFailedException
HResult=0x80131500
Message=Expected stream.Seek(-5, SeekOrigin.End) to be 22L, but found 32L.
Furthermore, the tests for SftpFileStream only cover cases with the origin set to SeekOrigin.Begin, and not SeekOrigin.Current or SeekOrigin.End.
When
SftpFileStream.Seek()is called with theoriginparameter set toSeekOrigin.Endand a negative offset, the resulting position is greater than the size of the stream. This is because the negative offset is subtracted from the total size, instead of added.SSH.NET/src/Renci.SshNet/Sftp/SftpFileStream.cs
Line 802 in 7bdfc9e
SSH.NET/src/Renci.SshNet/Sftp/SftpFileStream.cs
Line 853 in 7bdfc9e
Failed test using
SftpFileStream.Seek():Furthermore, the tests for
SftpFileStreamonly cover cases with theoriginset toSeekOrigin.Begin, and notSeekOrigin.CurrentorSeekOrigin.End.