fd5d92a7f5
hcsshim tags v0.10.* is deprecated, so using the new v0.12.0-rc.* versioning for hcsshim tags on containerd/main Signed-off-by: Kirtana Ashok <kiashok@microsoft.com>
75 lines
2.0 KiB
Go
75 lines
2.0 KiB
Go
package osversion
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import (
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"fmt"
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"sync"
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"golang.org/x/sys/windows"
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"golang.org/x/sys/windows/registry"
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)
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// OSVersion is a wrapper for Windows version information
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// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724439(v=vs.85).aspx
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type OSVersion struct {
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Version uint32
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MajorVersion uint8
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MinorVersion uint8
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Build uint16
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}
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var (
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osv OSVersion
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once sync.Once
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)
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// Get gets the operating system version on Windows.
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// The calling application must be manifested to get the correct version information.
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func Get() OSVersion {
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once.Do(func() {
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v := *windows.RtlGetVersion()
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osv = OSVersion{}
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osv.MajorVersion = uint8(v.MajorVersion)
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osv.MinorVersion = uint8(v.MinorVersion)
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osv.Build = uint16(v.BuildNumber)
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// Fill version value so that existing clients don't break
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osv.Version = v.BuildNumber << 16
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osv.Version = osv.Version | (uint32(v.MinorVersion) << 8)
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osv.Version = osv.Version | v.MajorVersion
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})
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return osv
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}
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// Build gets the build-number on Windows
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// The calling application must be manifested to get the correct version information.
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func Build() uint16 {
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return Get().Build
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}
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// String returns the OSVersion formatted as a string. It implements the
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// [fmt.Stringer] interface.
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func (osv OSVersion) String() string {
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return fmt.Sprintf("%d.%d.%d", osv.MajorVersion, osv.MinorVersion, osv.Build)
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}
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// ToString returns the OSVersion formatted as a string.
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//
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// Deprecated: use [OSVersion.String].
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func (osv OSVersion) ToString() string {
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return osv.String()
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}
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// Running `cmd /c ver` shows something like "10.0.20348.1000". The last component ("1000") is the revision
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// number
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func BuildRevision() (uint32, error) {
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k, err := registry.OpenKey(registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Windows NT\CurrentVersion`, registry.QUERY_VALUE)
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if err != nil {
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return 0, fmt.Errorf("open `CurrentVersion` registry key: %w", err)
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}
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defer k.Close()
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s, _, err := k.GetIntegerValue("UBR")
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if err != nil {
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return 0, fmt.Errorf("read `UBR` from registry: %w", err)
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}
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return uint32(s), nil
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}
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