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channels: Send close if we received a remote close

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Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
(cherry picked from commit c3067f8e73)
This commit is contained in:
Andreas Schneider
2018-12-10 14:12:34 +01:00
parent 917ba07478
commit 32221ea9fb
1 changed files with 24 additions and 2 deletions
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26
src/channels.c
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@@ -28,6 +28,7 @@
#include <stdio.h>
#include <errno.h>
#include <time.h>
#include <stdbool.h>
#ifndef _WIN32
#include <netinet/in.h>
@@ -1008,8 +1009,29 @@ void ssh_channel_free(ssh_channel channel)
}
session = channel->session;
if (session->alive && channel->state == SSH_CHANNEL_STATE_OPEN) {
ssh_channel_close(channel);
if (session->alive) {
bool send_close = false;
switch (channel->state) {
case SSH_CHANNEL_STATE_OPEN:
send_close = true;
break;
case SSH_CHANNEL_STATE_CLOSED:
if (channel->flags & SSH_CHANNEL_FLAG_CLOSED_REMOTE) {
send_close = true;
}
if (channel->flags & SSH_CHANNEL_FLAG_CLOSED_LOCAL) {
send_close = false;
}
break;
default:
send_close = false;
break;
}
if (send_close) {
ssh_channel_close(channel);
}
}
channel->flags |= SSH_CHANNEL_FLAG_FREED_LOCAL;