From 23c1b75be49d22168cde77fb85e075ec16bb2ca5 Mon Sep 17 00:00:00 2001
From: Jeremy Penner <jeremy@sporktania.com>
Date: Sat, 27 Jun 2020 18:53:10 -0400
Subject: [PATCH] handle clients that send only \r for enter key

---
 telnet.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/telnet.py b/telnet.py
index d07a76a..c98d4ae 100644
--- a/telnet.py
+++ b/telnet.py
@@ -142,11 +142,18 @@ class AnsiTelnet(protocol.Protocol):
         self.client.removeDgQuit(self.transport.loseConnection)
         self.client.quit()
 
+class DOSNewlineTelnetTransport(telnet.TelnetTransport):
+    def dataReceived(self, data):
+        telnet.TelnetTransport.dataReceived(self, data)
+        if self.state == 'newline':
+            self.state = 'data'
+            self.applicationDataReceived(b'\r')
+
 class AnsiFactory(ServerFactory):
     def __init__(self, fnRun):
         self.fnRun = fnRun
     def buildProtocol(self, addr):
-        p = telnet.TelnetTransport(AnsiTelnet, engine.Client())
+        p = DOSNewlineTelnetTransport(AnsiTelnet, engine.Client())
         p.factory = self
         print "built protocol for ", addr
         return p