From 4938010aeb837fe1b3266a16e8efcb5b1a515d0c Mon Sep 17 00:00:00 2001
From: Anthony Minessale <anthony.minessale@gmail.com>
Date: Wed, 24 Feb 2010 20:40:31 +0000
Subject: [PATCH] FSCORE-558

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16803 d0543943-73ff-0310-b7d9-9358b9ac24b2
---
 src/mod/endpoints/mod_sofia/sip-dig.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mod/endpoints/mod_sofia/sip-dig.c b/src/mod/endpoints/mod_sofia/sip-dig.c
index e8d52ebec4..f4714bccda 100644
--- a/src/mod/endpoints/mod_sofia/sip-dig.c
+++ b/src/mod/endpoints/mod_sofia/sip-dig.c
@@ -241,6 +241,11 @@ switch_status_t sip_dig_function(_In_opt_z_ const char *cmd, _In_opt_ switch_cor
 
 	argc = switch_separate_string(mycmd, ' ', argv, (sizeof(argv_) / sizeof(argv_[0])) - 1);
 	argv = argv_;
+
+
+	if (!argv[1]) {
+		{usage(1);}
+	}
 	
 	if (!strcasecmp(argv[1], "xml")) {
 		switch_event_add_header_string(stream->param_event, SWITCH_STACK_BOTTOM, "xml", "true");