Align with go library layout

daemon_linux.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"os"
+	"os/exec"
+)
+
+/* Daemonizes the process on linux
+ *
+ * This is done by spawning and releasing a copy with the --foreground flag
+ */
+func Daemonize(attr *os.ProcAttr) error {
+	// I would like to use os.Executable,
+	// however this means dropping support for Go <1.8
+	path, err := exec.LookPath(os.Args[0])
+	if err != nil {
+		return err
+	}
+
+	argv := []string{os.Args[0], "--foreground"}
+	argv = append(argv, os.Args[1:]...)
+	process, err := os.StartProcess(
+		path,
+		argv,
+		attr,
+	)
+	if err != nil {
+		return err
+	}
+	process.Release()
+	return nil
+}