de6c286258
The documentation states that `nVolumeNameSize` and `nFileSystemNameSize` are: > The length of a volume name buffer, in TCHARs. The maximum buffer size is MAX_PATH+1. It seems like we allocated too little for them before, so expand it to 260 wchars.
62 lines
2 KiB
Go
62 lines
2 KiB
Go
// +build windows
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/*
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* MinIO Cloud Storage, (C) 2015 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package disk
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import (
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"path/filepath"
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"syscall"
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"unsafe"
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)
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var (
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// GetVolumeInformation provides windows drive volume information.
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GetVolumeInformation = kernel32.NewProc("GetVolumeInformationW")
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)
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// getFSType returns the filesystem type of the underlying mounted filesystem
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func getFSType(path string) string {
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volumeNameSize, nFileSystemNameSize := uint32(260), uint32(260)
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var lpVolumeSerialNumber uint32
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var lpFileSystemFlags, lpMaximumComponentLength uint32
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var lpFileSystemNameBuffer, volumeName [260]uint16
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var ps = syscall.StringToUTF16Ptr(filepath.VolumeName(path))
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// Extract values safely
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// BOOL WINAPI GetVolumeInformation(
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// _In_opt_ LPCTSTR lpRootPathName,
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// _Out_opt_ LPTSTR lpVolumeNameBuffer,
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// _In_ DWORD nVolumeNameSize,
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// _Out_opt_ LPDWORD lpVolumeSerialNumber,
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// _Out_opt_ LPDWORD lpMaximumComponentLength,
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// _Out_opt_ LPDWORD lpFileSystemFlags,
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// _Out_opt_ LPTSTR lpFileSystemNameBuffer,
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// _In_ DWORD nFileSystemNameSize
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// );
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_, _, _ = GetVolumeInformation.Call(uintptr(unsafe.Pointer(ps)),
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uintptr(unsafe.Pointer(&volumeName)),
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uintptr(volumeNameSize),
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uintptr(unsafe.Pointer(&lpVolumeSerialNumber)),
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uintptr(unsafe.Pointer(&lpMaximumComponentLength)),
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uintptr(unsafe.Pointer(&lpFileSystemFlags)),
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uintptr(unsafe.Pointer(&lpFileSystemNameBuffer)),
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uintptr(nFileSystemNameSize))
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return syscall.UTF16ToString(lpFileSystemNameBuffer[:])
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}
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