From 759dc005995b9fbdbeb8ecff7fd6b7758bc009e4 Mon Sep 17 00:00:00 2001
From: Tilghman Lesher <tilghman@meg.abyt.es>
Date: Mon, 18 Jun 2007 19:48:17 +0000
Subject: [PATCH] Issue 10005 - Segfault with missing arguments, plus fix a
 missing define for SIP INFO channels

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@69796 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 channels/chan_sip.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index b9adb2aa84..2da9dd7c1c 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -1579,6 +1579,7 @@ static const struct ast_channel_tech sip_tech_info = {
 	.send_digit_end = sip_senddigit_end,
 	.bridge = ast_rtp_bridge,
 	.send_text = sip_sendtext,
+	.func_channel_read = acf_channel_read,
 };
 
 /**--- some list management macros. **/
@@ -14275,6 +14276,12 @@ static int acf_channel_read(struct ast_channel *chan, char *funcname, char *prep
 	if (strcasecmp(args.param, "rtpqos"))
 		return 0;
 
+	/* Default arguments of audio,all */
+	if (ast_strlen_zero(args.type))
+		args.type = "audio";
+	if (ast_strlen_zero(args.field))
+		args.field = "all";
+
 	memset(buf, 0, buflen);
 	memset(&qos, 0, sizeof(qos));