From 73971df484ac4fac1717fc5965e2adb5b33ca0d2 Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Fri, 21 Feb 2014 10:48:02 +0100
Subject: [PATCH] Add systemd.SdBooted()

This is a conversion of sd_booted() from libsystemd to go and checks
if the system was booted with systemd.

Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
---
 systemd/booted.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 systemd/booted.go

diff --git a/systemd/booted.go b/systemd/booted.go
new file mode 100644
index 0000000..2aae931
--- /dev/null
+++ b/systemd/booted.go
@@ -0,0 +1,15 @@
+package systemd
+
+import (
+	"os"
+)
+
+// Conversion to Go of systemd's sd_booted()
+func SdBooted() bool {
+	s, err := os.Stat("/run/systemd/system")
+	if err != nil {
+		return false
+	}
+
+	return s.IsDir()
+}