| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | //go:build linux |
| 4 | |
| 5 | package hostinfo |
| 6 | |
| 7 | import ( |
| 8 | "context" |
| 9 | "regexp" |
| 10 | "strconv" |
| 11 | |
| 12 | "github.com/coreos/go-systemd/v22/dbus" |
| 13 | ) |
| 14 | |
| 15 | var SystemdVersion = getSystemdVersion() |
| 16 | |
| 17 | func getSystemdVersion() int { |
| 18 | var reVersion = regexp.MustCompile(`[0-9][0-9][0-9]`) |
| 19 | |
| 20 | conn, err := dbus.NewWithContext(context.Background()) |
| 21 | if err != nil { |
| 22 | return 0 |
| 23 | } |
| 24 | defer conn.Close() |
| 25 | |
| 26 | version, err := conn.GetManagerProperty("Version") |
| 27 | if err != nil { |
| 28 | return 0 |
| 29 | } |
| 30 | |
| 31 | major := reVersion.FindString(version) |
| 32 | if major == "" { |
| 33 | return 0 |
| 34 | } |
| 35 | |
| 36 | ver, err := strconv.Atoi(major) |
| 37 | if err != nil { |
| 38 | return 0 |
| 39 | } |
| 40 | |
| 41 | return ver |
| 42 | } |