cloudflared-mirror/vendor/go.opentelemetry.io/otel/sdk/resource/os_windows.go

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2022-04-06 23:20:29 +00:00
// Copyright The OpenTelemetry Authors
//
// 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 resource // import "go.opentelemetry.io/otel/sdk/resource"
import (
"fmt"
"strconv"
"golang.org/x/sys/windows/registry"
)
// platformOSDescription returns a human readable OS version information string.
// It does so by querying registry values under the
// `SOFTWARE\Microsoft\Windows NT\CurrentVersion` key. The final string
// resembles the one displayed by the Version Reporter Applet (winver.exe).
func platformOSDescription() (string, error) {
k, err := registry.OpenKey(
registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Windows NT\CurrentVersion`, registry.QUERY_VALUE)
if err != nil {
return "", err
}
defer k.Close()
var (
productName = readProductName(k)
displayVersion = readDisplayVersion(k)
releaseID = readReleaseID(k)
currentMajorVersionNumber = readCurrentMajorVersionNumber(k)
currentMinorVersionNumber = readCurrentMinorVersionNumber(k)
currentBuildNumber = readCurrentBuildNumber(k)
ubr = readUBR(k)
)
if displayVersion != "" {
displayVersion += " "
}
return fmt.Sprintf("%s %s(%s) [Version %s.%s.%s.%s]",
productName,
displayVersion,
releaseID,
currentMajorVersionNumber,
currentMinorVersionNumber,
currentBuildNumber,
ubr,
), nil
}
func getStringValue(name string, k registry.Key) string {
value, _, _ := k.GetStringValue(name)
return value
}
func getIntegerValue(name string, k registry.Key) uint64 {
value, _, _ := k.GetIntegerValue(name)
return value
}
func readProductName(k registry.Key) string {
return getStringValue("ProductName", k)
}
func readDisplayVersion(k registry.Key) string {
return getStringValue("DisplayVersion", k)
}
func readReleaseID(k registry.Key) string {
return getStringValue("ReleaseID", k)
}
func readCurrentMajorVersionNumber(k registry.Key) string {
return strconv.FormatUint(getIntegerValue("CurrentMajorVersionNumber", k), 10)
}
func readCurrentMinorVersionNumber(k registry.Key) string {
return strconv.FormatUint(getIntegerValue("CurrentMinorVersionNumber", k), 10)
}
func readCurrentBuildNumber(k registry.Key) string {
return getStringValue("CurrentBuildNumber", k)
}
func readUBR(k registry.Key) string {
return strconv.FormatUint(getIntegerValue("UBR", k), 10)
}