From 2ce7890fddb1e60d738f4dec587b301ebfcab5b2 Mon Sep 17 00:00:00 2001
From: Matthew Fredrickson <creslin@digium.com>
Date: Thu, 8 Jun 2006 22:16:55 +0000
Subject: [PATCH] Make sure we don't send display if callername is set to a 0
 length string.

git-svn-id: https://origsvn.digium.com/svn/libpri/trunk@351 2fbb986a-6c06-0410-b554-c9c1f0a7f128
---
 q931.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/q931.c b/q931.c
index 2c31ce4..acb1961 100644
--- a/q931.c
+++ b/q931.c
@@ -1061,6 +1061,9 @@ static FUNC_SEND(transmit_display)
 {
 	int i;
 	
+	if (!call->callername[0])
+		return 0;
+
 	if ((pri->switchtype == PRI_SWITCH_QSIG)
 		|| ((pri->switchtype == PRI_SWITCH_EUROISDN_E1) && (pri->localtype == PRI_CPE)) ||
 		!call->callername[0])