From 373ea6dfc5e37930c4d9f31ff356720059265132 Mon Sep 17 00:00:00 2001
From: nls <steven.ou@nokia.com>
Date: Sun, 23 Jun 2019 06:48:55 +0530
Subject: [PATCH] /dev/stdout & /dev/stderr as LogFileName

---
 daemon_unix.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/daemon_unix.go b/daemon_unix.go
index 3bd7dc9..d14068b 100644
--- a/daemon_unix.go
+++ b/daemon_unix.go
@@ -141,7 +141,11 @@ func (d *Context) openFiles() (err error) {
 	}
 
 	if len(d.LogFileName) > 0 {
-		if d.logFile, err = os.OpenFile(d.LogFileName,
+		if d.LogFileName == "/dev/stdout" {
+			d.logFile = os.Stdout
+		} else if d.LogFileName == "/dev/stderr" {
+			d.logFile = os.Stderr
+		} else if d.logFile, err = os.OpenFile(d.LogFileName,
 			os.O_WRONLY|os.O_CREATE|os.O_APPEND, d.LogFilePerm); err != nil {
 			return
 		}