gateway: Fix prompt in get_telnet and set TELNET window size: 1000x32

gateway.py

@@ -790,6 +790,7 @@ class Gateway():
     return False
 
   def get_telnet(self, verbose = 0, password = None):
+    from telnetlib import NOP, IAC, SB, NAWS, SE
     try:
       tn = telnetlib.Telnet(self.ip_addr, timeout=4)
     except Exception as e:
@@ -803,6 +804,7 @@ class Gateway():
       idx, obj, output = tn.expect([p_login, prompt], timeout=2)
       if idx < 0:
         raise Exception('TELNET auth error (1)')
+      tn.sock.sendall(IAC + SB + NAWS + b'\x03\xE8\x00\x20' + IAC + SE)
       if idx > 0:
         tn.prompt = obj.group()
         return tn

xmir_base/telnetlib/telnetlib.py

@@ -38,8 +38,6 @@ import socket
 import selectors
 from time import monotonic as _time
 
-__all__ = ["Telnet"]
-
 # Tunable parameters
 DEBUGLEVEL = 0