From 92f0cdfce7131988eef38fc9533db1e33fd23bc0 Mon Sep 17 00:00:00 2001
From: Russell Bryant <russell@russellbryant.com>
Date: Fri, 26 Jun 2009 20:45:00 +0000
Subject: [PATCH] Ensure the TCP read buffer is fully initialized before
 handling each packet.

(closes issue #14452)
Reported by: umberto71


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@203779 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 channels/chan_sip.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index a49b6ce750..0ab1251737 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -2903,6 +2903,8 @@ static void *_sip_tcp_helper_thread(struct sip_pvt *pvt, struct ast_tcptls_sessi
 		reqcpy.data = str_save;
 		ast_str_reset(reqcpy.data);
 
+		memset(buf, 0, sizeof(buf));
+
 		if (tcptls_session->ssl) {
 			set_socket_transport(&req.socket, SIP_TRANSPORT_TLS);
 			req.socket.port = htons(ourport_tls);