Merge pull request #82 from ploxiln/closed_chan_shutdown

channel: check if already closed in _send_eof()
ploxiln · Jul 31, 2020 · b77fe6b · b77fe6b
2 parents 1e930d8 + 413ec61
commit b77fe6b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/paramiko/channel.py b/paramiko/channel.py
@@ -944,6 +944,7 @@ def shutdown(self, how):
             # feign "read" shutdown
             self.eof_received = 1
         if (how == 1) or (how == 2):
+            m = None
             self.lock.acquire()
             try:
                 m = self._send_eof()
@@ -1230,7 +1231,7 @@ def _set_closed(self):
 
     def _send_eof(self):
         # you are holding the lock.
-        if self.eof_sent:
+        if self.eof_sent or self.closed:
             return None
         m = Message()
         m.add_byte(cMSG_CHANNEL_EOF)