Make sure we never send window adjustments (or winadjes) on channels

for which we've already sent CHANNEL_CLOSE. It would be embarrassing
if the remote end had also sent CHANNEL_CLOSE in response and then
received our communication once it had forgotten about the channel.

git-svn-id: svn://svn.tartarus.org/sgt/putty@9360 cda61777-01e9-0310-a592-d414129be87e

diff --git a/ssh.c b/ssh.c
index 3464ea5..6471c4b 100644 (file)
--- a/ssh.c
+++ b/ssh.c
@@ -6551,9 +6551,10 @@ static void ssh2_set_window(struct ssh_channel *c, int newwin)
     /*
      * Never send WINDOW_ADJUST for a channel that the remote side has
      * already sent EOF on; there's no point, since it won't be
-     * sending any more data anyway.
+     * sending any more data anyway. Ditto if _we've_ already sent
+     * CLOSE.
      */
-    if (c->closes & CLOSES_RCVD_EOF)
+    if (c->closes & (CLOSES_RCVD_EOF | CLOSES_SENT_CLOSE))
        return;
 
     /*