dovecot-2.2: pop3: Fixed potential assert-crash on disconnect.

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-2.2/rev/d14f30ccd118
changeset: 17737:d14f30ccd118
user:      Timo Sirainen <tss at iki.fi>
date:      Wed Aug 20 15:35:43 2014 +0200
description:
pop3: Fixed potential assert-crash on disconnect.

diffstat:

 src/pop3/pop3-client.c |  3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diffs (13 lines):

diff -r f0f19e5580f0 -r d14f30ccd118 src/pop3/pop3-client.c
--- a/src/pop3/pop3-client.c	Wed Aug 20 15:32:15 2014 +0200
+++ b/src/pop3/pop3-client.c	Wed Aug 20 15:35:43 2014 +0200
@@ -811,7 +811,8 @@
 
 	if (client->cmd == NULL) {
 		if (o_stream_get_buffer_used_size(client->output) <
-		    POP3_OUTBUF_THROTTLE_SIZE/2 && client->io == NULL) {
+		    POP3_OUTBUF_THROTTLE_SIZE/2 && client->io == NULL &&
+		    !client->input->closed) {
 			/* enable input again */
 			client->io = io_add_istream(client->input, client_input,
 						    client);