[PATCH] Don't send EOF on channel more than once

[g4-lisz@xxxxxxxxxxxx]

Attached you find a patch for channels.c which prevents sending EOF on a
channel more then once.

Please comment.

Till

From f8651e1831cf5273a3de2d22e2f4d7edf0fb457a Mon Sep 17 00:00:00 2001
From: Till Wimmer <g4-lisz@xxxxxxxxxxxx>
Date: Tue, 9 Apr 2019 15:57:03 +0200
Subject: [PATCH] Don't send EOF on channel more than once

Signed-off-by: Till Wimmer <g4-lisz@xxxxxxxxxxxx>
---
 src/channels.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/channels.c b/src/channels.c
index 7b34c38..e65a256 100644
--- a/src/channels.c
+++ b/src/channels.c
@@ -1195,6 +1195,11 @@ int ssh_channel_send_eof(ssh_channel channel)
         return rc;
     }
 
+    /* If the EOF has already been sent we're done here. */
+    if(channel->local_eof != 0) {
+        return SSH_OK;
+    }
+
     session = channel->session;
 
     err = ssh_buffer_pack(session->out_buffer,
@@ -1257,10 +1262,7 @@ int ssh_channel_close(ssh_channel channel)
 
     session = channel->session;
 
-    if (channel->local_eof == 0) {
-        rc = ssh_channel_send_eof(channel);
-    }
-
+    rc = ssh_channel_send_eof(channel);
     if (rc != SSH_OK) {
         return rc;
     }
-- 
2.7.4