C# detect folder junctions in a path
I want to make a quick check if in a complete path a Junction point is used. I already have a function to test a folder like IsJunction()
but maybe there is an other solution to not call IsJunction()
on every 开发者_StackOverflow社区subfolder.
So I'm looking for a function like HasJunctionsInPath(string path)
without testing each folder of the path.
Is there something which can do this?
Edit:
Or better...
Is it possible to resolve all junctions in a path to get the real location of a file or folder? This would be even better solve my problem and I still can compare the result with the original path to implement a bool HasJunctionsInPath(string path)
function.
Look at the solution of Jeff Brown.
He implemented your features in a static class, that seems to just work fine.
http://www.codeproject.com/KB/files/JunctionPointsNet.aspx
As far as I know there's no out of the box implementation in c# to handle junctions / reparse points directly.
So you have to do some interop with kernel32.dll. This is a bit tricky, but you find samples. You'll need the CreateFile() & DeviceIoControl() calls.
Here is a good sample to start: http://www.codeproject.com/KB/vista/ReparsePointID.aspx?display=Print
useful msdn links:
http://msdn.microsoft.com/en-us/library/cc232007%28PROT.13%29.aspx
http://msdn.microsoft.com/en-us/library/aa363858%28v=vs.85%29.aspx
http://msdn.microsoft.com/en-us/library/aa363216%28v=vs.85%29.aspx
http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/7acd564f-0e9f-4295-8609-916af6675f0a
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