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Handle IOException when opening a file

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Tal Aloni 2016-12-27 00:24:29 +02:00
parent 0bab6ca8bf
commit 8c7b17426c
1 changed files with 24 additions and 1 deletions
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23
SMBLibrary/Server/ResponseHelpers/NTCreateHelper.cs
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@ -247,7 +247,30 @@ namespace SMBLibrary.Server
{ {
bool buffered = (request.CreateOptions & CreateOptions.FILE_SEQUENTIAL_ONLY) > 0 && (request.CreateOptions & CreateOptions.FILE_NO_INTERMEDIATE_BUFFERING) == 0; bool buffered = (request.CreateOptions & CreateOptions.FILE_SEQUENTIAL_ONLY) > 0 && (request.CreateOptions & CreateOptions.FILE_NO_INTERMEDIATE_BUFFERING) == 0;
System.Diagnostics.Debug.Print("[{0}] Opening {1}, Access={2}, Share={3}, Buffered={4}", DateTime.Now.ToString("HH:mm:ss:ffff"), path, fileAccess, fileShare, buffered); System.Diagnostics.Debug.Print("[{0}] Opening {1}, Access={2}, Share={3}, Buffered={4}", DateTime.Now.ToString("HH:mm:ss:ffff"), path, fileAccess, fileShare, buffered);
try
{
stream = fileSystem.OpenFile(path, FileMode.Open, fileAccess, fileShare); stream = fileSystem.OpenFile(path, FileMode.Open, fileAccess, fileShare);
}
catch (IOException ex)
{
ushort errorCode = IOExceptionHelper.GetWin32ErrorCode(ex);
if (errorCode == (ushort)Win32Error.ERROR_SHARING_VIOLATION)
{
header.Status = NTStatus.STATUS_SHARING_VIOLATION;
return new ErrorResponse(CommandName.SMB_COM_NT_CREATE_ANDX);
}
else
{
header.Status = NTStatus.STATUS_DATA_ERROR;
return new ErrorResponse(CommandName.SMB_COM_NT_CREATE_ANDX);
}
}
catch (UnauthorizedAccessException)
{
header.Status = NTStatus.STATUS_ACCESS_DENIED;
return new ErrorResponse(CommandName.SMB_COM_NT_CREATE_ANDX);
}
if (buffered) if (buffered)
{ {
stream = new PrefetchedStream(stream); stream = new PrefetchedStream(stream);