| package operatingsystem // import "github.com/docker/docker/pkg/parsers/operatingsystem" |
| |
| import ( |
| "unsafe" |
| |
| "golang.org/x/sys/windows" |
| ) |
| |
| // 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 { |
| 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 { |
| return ret, err |
| } |
| ret = windows.UTF16ToString(buf[:]) |
| |
| return ret, nil |
| } |
| |
| // IsContainerized returns true if we are running inside a container. |
| // No-op on Windows, always returns false. |
| func IsContainerized() (bool, error) { |
| return false, nil |
| } |