From 9b5b6a2b1a97b4c49e17b781068f14520f4359fd Mon Sep 17 00:00:00 2001
From: Dan Fandrich <dan@coneharvesters.com>
Date: Sat, 15 Mar 2014 09:57:41 +0100
Subject: [PATCH] ssh: prevent a logic error that could result in an infinite
 loop

---
 lib/ssh.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/ssh.c b/lib/ssh.c
index 5895a10cb..ad6d3226e 100644
--- a/lib/ssh.c
+++ b/lib/ssh.c
@@ -2204,7 +2204,8 @@ static CURLcode ssh_statemach_act(struct connectdata *conn, bool *block)
       /* Check if nextstate is set and move .nextstate could be POSTQUOTE_INIT
          After nextstate is executed,the control should come back to
          SSH_SFTP_CLOSE to pass the correct result back  */
-      if(sshc->nextstate != SSH_NO_STATE) {
+      if(sshc->nextstate != SSH_NO_STATE &&
+         sshc->nextstate != SSH_SFTP_CLOSE) {
         state(conn, sshc->nextstate);
         sshc->nextstate = SSH_SFTP_CLOSE;
       }