From 5a836534f5f4116c6ea220147774619859ea6e5a Mon Sep 17 00:00:00 2001
From: Akihiro TAKASE <42milez@gmail.com>
Date: Fri, 29 Oct 2021 23:05:17 +0900
Subject: [PATCH] writes to "os.Stderr" with fmt.Fprintf()

---
 src/datachannel/streaming.go                                | 6 +++---
 src/sessionmanagerplugin-main/main.go                       | 2 +-
 .../session/portsession/basicportforwarding.go              | 2 +-
 .../session/portsession/muxportforwarding.go                | 2 +-
 src/sessionmanagerplugin/session/session.go                 | 2 +-
 src/sessionmanagerplugin/session/sessionhandler.go          | 2 +-
 .../session/sessionutil/sessionutil_windows.go              | 2 +-
 7 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/src/datachannel/streaming.go b/src/datachannel/streaming.go
index a6b122d4..3effe1ec 100644
--- a/src/datachannel/streaming.go
+++ b/src/datachannel/streaming.go
@@ -495,7 +495,7 @@ func (dataChannel *DataChannel) handleHandshakeComplete(log log.T, clientMessage
 		handshakeComplete.HandshakeTimeToComplete.Seconds())
 
 	if handshakeComplete.CustomerMessage != "" {
-		fmt.Fprintln(os.Stdout, handshakeComplete.CustomerMessage)
+		fmt.Fprintln(os.Stderr, handshakeComplete.CustomerMessage)
 	}
 
 	return err
@@ -763,9 +763,9 @@ func (dataChannel DataChannel) HandleChannelClosedMessage(log log.T, stopHandler
 
 	log.Infof("Exiting session with sessionId: %s with output: %s", sessionId, channelClosedMessage.Output)
 	if channelClosedMessage.Output == "" {
-		fmt.Fprintf(os.Stdout, "\n\nExiting session with sessionId: %s.\n\n", sessionId)
+		fmt.Fprintf(os.Stderr, "\n\nExiting session with sessionId: %s.\n\n", sessionId)
 	} else {
-		fmt.Fprintf(os.Stdout, "\n\nSessionId: %s : %s\n\n", sessionId, channelClosedMessage.Output)
+		fmt.Fprintf(os.Stderr, "\n\nSessionId: %s : %s\n\n", sessionId, channelClosedMessage.Output)
 	}
 
 	stopHandler()
diff --git a/src/sessionmanagerplugin-main/main.go b/src/sessionmanagerplugin-main/main.go
index 825c81b7..ef0a00ae 100644
--- a/src/sessionmanagerplugin-main/main.go
+++ b/src/sessionmanagerplugin-main/main.go
@@ -23,5 +23,5 @@ import (
 )
 
 func main() {
-	session.ValidateInputAndStartSession(os.Args, os.Stdout)
+	session.ValidateInputAndStartSession(os.Args, os.Stderr)
 }
diff --git a/src/sessionmanagerplugin/session/portsession/basicportforwarding.go b/src/sessionmanagerplugin/session/portsession/basicportforwarding.go
index 95b91d81..4dde0b12 100644
--- a/src/sessionmanagerplugin/session/portsession/basicportforwarding.go
+++ b/src/sessionmanagerplugin/session/portsession/basicportforwarding.go
@@ -175,7 +175,7 @@ func (p *BasicPortForwarding) handleControlSignals(log log.T) {
 			if err := p.session.DataChannel.SendFlag(log, message.TerminateSession); err != nil {
 				log.Errorf("Failed to send TerminateSession flag: %v", err)
 			}
-			fmt.Fprintf(os.Stdout, "\n\nExiting session with sessionId: %s.\n\n", p.sessionId)
+			fmt.Fprintf(os.Stderr, "\n\nExiting session with sessionId: %s.\n\n", p.sessionId)
 			p.Stop()
 		} else {
 			p.session.TerminateSession(log)
diff --git a/src/sessionmanagerplugin/session/portsession/muxportforwarding.go b/src/sessionmanagerplugin/session/portsession/muxportforwarding.go
index f5a03372..6030e3ee 100644
--- a/src/sessionmanagerplugin/session/portsession/muxportforwarding.go
+++ b/src/sessionmanagerplugin/session/portsession/muxportforwarding.go
@@ -187,7 +187,7 @@ func (p *MuxPortForwarding) handleControlSignals(log log.T) {
 		if err := p.session.DataChannel.SendFlag(log, message.TerminateSession); err != nil {
 			log.Errorf("Failed to send TerminateSession flag: %v", err)
 		}
-		fmt.Fprintf(os.Stdout, "\n\nExiting session with sessionId: %s.\n\n", p.sessionId)
+		fmt.Fprintf(os.Stderr, "\n\nExiting session with sessionId: %s.\n\n", p.sessionId)
 		p.Stop()
 	}()
 }
diff --git a/src/sessionmanagerplugin/session/session.go b/src/sessionmanagerplugin/session/session.go
index e9a41117..0937757b 100644
--- a/src/sessionmanagerplugin/session/session.go
+++ b/src/sessionmanagerplugin/session/session.go
@@ -190,7 +190,7 @@ func ValidateInputAndStartSession(args []string, out io.Writer) {
 
 //Execute create data channel and start the session
 func (s *Session) Execute(log log.T) (err error) {
-	fmt.Fprintf(os.Stdout, "\nStarting session with SessionId: %s\n", s.SessionId)
+	fmt.Fprintf(os.Stderr, "\nStarting session with SessionId: %s\n", s.SessionId)
 
 	// sets the display mode
 	s.DisplayMode = sessionutil.NewDisplayMode(log)
diff --git a/src/sessionmanagerplugin/session/sessionhandler.go b/src/sessionmanagerplugin/session/sessionhandler.go
index c3106ae0..56309801 100644
--- a/src/sessionmanagerplugin/session/sessionhandler.go
+++ b/src/sessionmanagerplugin/session/sessionhandler.go
@@ -129,7 +129,7 @@ func (s *Session) ResumeSessionHandler(log log.T) (err error) {
 		return
 	} else if s.TokenValue == "" {
 		log.Debugf("Session: %s timed out", s.SessionId)
-		fmt.Fprintf(os.Stdout, "Session: %s timed out.\n", s.SessionId)
+		fmt.Fprintf(os.Stderr, "Session: %s timed out.\n", s.SessionId)
 		os.Exit(0)
 	}
 	s.DataChannel.GetWsChannel().SetChannelToken(s.TokenValue)
diff --git a/src/sessionmanagerplugin/session/sessionutil/sessionutil_windows.go b/src/sessionmanagerplugin/session/sessionutil/sessionutil_windows.go
index 50b0df42..d96bd5e4 100644
--- a/src/sessionmanagerplugin/session/sessionutil/sessionutil_windows.go
+++ b/src/sessionmanagerplugin/session/sessionutil/sessionutil_windows.go
@@ -70,7 +70,7 @@ func (d *DisplayMode) DisplayMessage(log log.T, message message.ClientMessage) {
 	// refer - https://docs.microsoft.com/en-us/windows/desktop/api/fileapi/nf-fileapi-writefile
 	if err = windows.WriteFile(d.handle, message.Payload, done, nil); err != nil {
 		log.Errorf("error occurred while writing to file: %v", err)
-		fmt.Fprintf(os.Stdout, "\nError getting the output. %s\n", err.Error())
+		fmt.Fprintf(os.Stderr, "\nError getting the output. %s\n", err.Error())
 		os.Exit(0)
 	}
 }