From 29f3f92a24a0254e78dc89b20824fd012ac1f2b4 Mon Sep 17 00:00:00 2001
From: russell <russell@f38db490-d61c-443f-a65b-d21fe96a405b>
Date: Thu, 25 Jan 2007 00:39:50 +0000
Subject: Fix a seg fault when running this application with no arguments from
 AGI. (issue #8905, junky)

git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.2@52137 f38db490-d61c-443f-a65b-d21fe96a405b
---
 apps/app_groupcount.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'apps/app_groupcount.c')

diff --git a/apps/app_groupcount.c b/apps/app_groupcount.c
index e44451370..87d313209 100644
--- a/apps/app_groupcount.c
+++ b/apps/app_groupcount.c
@@ -155,6 +155,11 @@ static int group_check_exec(struct ast_channel *chan, void *data)
 		deprecation_warning = 1;
 	}
 
+	if (ast_strlen_zero(data)) {
+		ast_log(LOG_WARNING, "CheckGroup requires an argument(max[@category][|options])\n");
+		return 0;
+	}
+
 	if (!(parse = ast_strdupa(data))) {
 		ast_log(LOG_WARNING, "Memory Error!\n");
 		LOCAL_USER_REMOVE(u);
-- 
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