Windows: Report Version and UBR
package operatingsystem // import "github.com/docker/docker/pkg/parsers/operatingsystem"
import (
- "unsafe"
+ "fmt"
- "golang.org/x/sys/windows"
+ "golang.org/x/sys/windows/registry"
)
-// See https://code.google.com/p/go/source/browse/src/pkg/mime/type_windows.go?r=d14520ac25bf6940785aabb71f5be453a286f58c
-// for a similar sample
-
// GetOperatingSystem gets the name of the current operating system.
func GetOperatingSystem() (string, error) {
- var h windows.Handle
-
// Default return value
ret := "Unknown Operating System"
- if err := windows.RegOpenKeyEx(windows.HKEY_LOCAL_MACHINE,
- windows.StringToUTF16Ptr(`SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\`),
- 0,
- windows.KEY_READ,
- &h); err != nil {
+ k, err := registry.OpenKey(registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\WIndows NT\CurrentVersion`, registry.QUERY_VALUE)
+ if err != nil {
+ return ret, err
+ }
+ defer k.Close()
+
+ pn, _, err := k.GetStringValue("ProductName")
+ if err != nil {
+ return ret, err
+ }
+ ret = pn
+
+ ri, _, err := k.GetStringValue("ReleaseId")
+ if err != nil {
+ return ret, err
+ }
+ ret = fmt.Sprintf("%s Version %s", ret, ri)
+
+ cbn, _, err := k.GetStringValue("CurrentBuildNumber")
+ if err != nil {
return ret, err
}
- defer windows.RegCloseKey(h)
-
- var buf [1 << 10]uint16
- var typ uint32
- n := uint32(len(buf) * 2) // api expects array of bytes, not uint16
-
- if err := windows.RegQueryValueEx(h,
- windows.StringToUTF16Ptr("ProductName"),
- nil,
- &typ,
- (*byte)(unsafe.Pointer(&buf[0])),
- &n); err != nil {
+
+ ubr, _, err := k.GetIntegerValue("UBR")
+ if err != nil {
return ret, err
}
- ret = windows.UTF16ToString(buf[:])
+ ret = fmt.Sprintf("%s (OS Build %s.%d)", ret, cbn, ubr)
return ret, nil
}
