From 5336bf62cc9ce3f2cc65e1a4961611d88f929098 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Date: Fri, 22 Feb 2013 16:18:53 +0900
Subject: [PATCH 1/3] ignore EINVAL on socket.shutdown and comment why

---
 telnetsrv/telnetsrvlib.py | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/telnetsrv/telnetsrvlib.py b/telnetsrv/telnetsrvlib.py
index 2ed6a3f..1cc6f95 100755
--- a/telnetsrv/telnetsrvlib.py
+++ b/telnetsrv/telnetsrvlib.py
@@ -524,7 +524,16 @@ def setup(self):
     def finish(self):
         "End this session"
         log.debug("Session disconnected.")
-        self.sock.shutdown(socket.SHUT_RDWR)
+        try:
+            self.sock.shutdown(socket.SHUT_RDWR)
+        except socket.error as e:
+            # on some systems shutdown fails with EINVAL.
+            # http://www.freebsd.org/cgi/query-pr.cgi?pr=31647
+            import errno
+            if e.errno == errno.EINVAL:
+                pass
+            else:
+                raise
         self.session_end()
 
     def session_start(self):

From e24904f1850e5d0d86b2ae09744dc623a9b46b62 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Date: Fri, 22 Feb 2013 16:19:35 +0900
Subject: [PATCH 2/3] don't wait on cookedq forever when the connection is
 closed by the peer. it seems that threaded.py needs a similar fix.

---
 telnetsrv/green.py        | 11 +++++++----
 telnetsrv/telnetsrvlib.py |  3 ++-
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/telnetsrv/green.py b/telnetsrv/green.py
index ae461c8..c5d79a8 100644
--- a/telnetsrv/green.py
+++ b/telnetsrv/green.py
@@ -34,10 +34,13 @@ def finish(self):
 
     def getc(self, block=True):
         """Return one character from the input queue"""
-        try:
-            return self.cookedq.get(block)
-        except gevent.queue.Empty:
-            return ''
+        while True:
+            try:
+                return self.cookedq.get(block, timeout = 10)
+            except gevent.queue.Empty:
+                if block and not self.eof:
+                    continue
+                return ''
 
     def inputcooker_socket_ready(self):
         """Indicate that the socket is ready to be read"""
diff --git a/telnetsrv/telnetsrvlib.py b/telnetsrv/telnetsrvlib.py
index 1cc6f95..d5cbe2c 100755
--- a/telnetsrv/telnetsrvlib.py
+++ b/telnetsrv/telnetsrvlib.py
@@ -674,7 +674,8 @@ def readline(self, echo=None, prompt='', use_history=True):
             c = self.ansi_to_curses(c)
             if c == theNULL:
                 continue
-            
+            elif c == '':
+                return 'QUIT'
             elif c == curses.KEY_LEFT:
                 if insptr > 0:
                     insptr = insptr - 1

From 365e021479debae45c1d570e0e1c2e9ef0c2a020 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Date: Fri, 22 Feb 2013 16:28:01 +0900
Subject: [PATCH 3/3] don't keep a socket open unnecessarily

---
 telnetsrv/telnetsrvlib.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/telnetsrv/telnetsrvlib.py b/telnetsrv/telnetsrvlib.py
index d5cbe2c..148d727 100755
--- a/telnetsrv/telnetsrvlib.py
+++ b/telnetsrv/telnetsrvlib.py
@@ -534,6 +534,7 @@ def finish(self):
                 pass
             else:
                 raise
+        self.sock.close()
         self.session_end()
 
     def session_start(self):