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Copy pathtype_windows.go
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// +build windows
/*
* Minio Cloud Storage, (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package disk
import (
"path/filepath"
"syscall"
"unsafe"
)
var (
// GetVolumeInformation provides windows drive volume information.
GetVolumeInformation = kernel32.NewProc("GetVolumeInformationW")
)
// getFSType returns the filesystem type of the underlying mounted filesystem
func getFSType(path string) string {
var volumeNameSize uint32 = 260
var nFileSystemNameSize, lpVolumeSerialNumber uint32
var lpFileSystemFlags, lpMaximumComponentLength uint32
var lpFileSystemNameBuffer, volumeName [260]byte
var ps = syscall.StringToUTF16Ptr(filepath.VolumeName(path))
// Extract values safely
// BOOL WINAPI GetVolumeInformation(
// _In_opt_ LPCTSTR lpRootPathName,
// _Out_opt_ LPTSTR lpVolumeNameBuffer,
// _In_ DWORD nVolumeNameSize,
// _Out_opt_ LPDWORD lpVolumeSerialNumber,
// _Out_opt_ LPDWORD lpMaximumComponentLength,
// _Out_opt_ LPDWORD lpFileSystemFlags,
// _Out_opt_ LPTSTR lpFileSystemNameBuffer,
// _In_ DWORD nFileSystemNameSize
// );
_, _, _ = GetVolumeInformation.Call(uintptr(unsafe.Pointer(ps)),
uintptr(unsafe.Pointer(&volumeName)),
uintptr(volumeNameSize),
uintptr(unsafe.Pointer(&lpVolumeSerialNumber)),
uintptr(unsafe.Pointer(&lpMaximumComponentLength)),
uintptr(unsafe.Pointer(&lpFileSystemFlags)),
uintptr(unsafe.Pointer(&lpFileSystemNameBuffer)),
uintptr(unsafe.Pointer(&nFileSystemNameSize)), 0)
var bytes []byte
if lpFileSystemNameBuffer[6] == 0 {
bytes = []byte{lpFileSystemNameBuffer[0], lpFileSystemNameBuffer[2],
lpFileSystemNameBuffer[4]}
} else {
bytes = []byte{lpFileSystemNameBuffer[0], lpFileSystemNameBuffer[2],
lpFileSystemNameBuffer[4], lpFileSystemNameBuffer[6]}
}
return string(bytes)
}