From 88a288ccfef2a51e578d5e8c04b2026abc905036 Mon Sep 17 00:00:00 2001
From: Philip Hofstetter <phofstetter@sensational.ch>
Date: Fri, 26 Jul 2019 13:35:43 +0200
Subject: [PATCH] make the server banner configurable

---
 config/config.go | 1 +
 sftpd/server.go  | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/config/config.go b/config/config.go
index 345a2b6d..8aeca3e4 100644
--- a/config/config.go
+++ b/config/config.go
@@ -28,6 +28,7 @@ func init() {
 	// create a default configuration to use if no config file is provided
 	globalConf = globalConfig{
 		SFTPD: sftpd.Configuration{
+			Banner:       "SFTPServer",
 			BindPort:     2022,
 			BindAddress:  "",
 			IdleTimeout:  15,
diff --git a/sftpd/server.go b/sftpd/server.go
index fa8b845c..e61bb621 100644
--- a/sftpd/server.go
+++ b/sftpd/server.go
@@ -27,6 +27,7 @@ import (
 
 // Configuration server configuration
 type Configuration struct {
+	Banner       string  `json:"banner"`
 	BindPort     int     `json:"bind_port"`
 	BindAddress  string  `json:"bind_address"`
 	IdleTimeout  int     `json:"idle_timeout"`
@@ -63,7 +64,7 @@ func (c Configuration) Initialize(configDir string) error {
 
 			return sp, nil
 		},
-		ServerVersion: "SSH-2.0-SFTPServer",
+		ServerVersion: "SSH-2.0-" + c.Banner,
 	}
 
 	if _, err := os.Stat(filepath.Join(configDir, "id_rsa")); os.IsNotExist(err) {