mirror of
https://github.com/rwinkhart/go-winio.git
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Hamza El-Saawy
b884eb77db
* Add `fs.ResolvePath` to resolve symbolic links `filepath.EvalSymlinks` does not work well on Windows, and can enter infinite loops in certain situations and error out. Use Win32 API GetFinalPathNameByHandle to handle path resolution. Implementation based off on: https://github.com/containerd/containerd/pull/5411 Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com> * PR: types, documentation Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com> * remove unneded constant groups Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com> * Attempt normalized path first Update logic to try querying for normalized path initially, then use opened path if access is denied. Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com> --------- Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>
33 lines
899 B
Go
33 lines
899 B
Go
package fs
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import (
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"errors"
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"path/filepath"
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"golang.org/x/sys/windows"
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"github.com/Microsoft/go-winio/internal/stringbuffer"
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)
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var (
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// ErrInvalidPath is returned when the location of a file path doesn't begin with a driver letter.
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ErrInvalidPath = errors.New("the path provided to GetFileSystemType must start with a drive letter")
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)
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// GetFileSystemType obtains the type of a file system through GetVolumeInformation.
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//
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// https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getvolumeinformationw
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func GetFileSystemType(path string) (fsType string, err error) {
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drive := filepath.VolumeName(path)
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if len(drive) != 2 {
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return "", ErrInvalidPath
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}
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buf := stringbuffer.NewWString()
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defer buf.Free()
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drive += `\`
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err = windows.GetVolumeInformation(windows.StringToUTF16Ptr(drive), nil, 0, nil, nil, nil, buf.Pointer(), buf.Cap())
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return buf.String(), err
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}
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