From 870cec0ac83c0359180704c254862c8e49703ba8 Mon Sep 17 00:00:00 2001
From: Alex Rousskov <rousskov@measurement-factory.com>
Date: Tue, 13 Jul 2010 19:00:21 -0600
Subject: [PATCH] Bug 2651 fix: squid crashing with ident auth

Check whether the old-style (function-based) callback has the
function address to call. A writer may leave no "callback number".
---
 src/CommCalls.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/CommCalls.h b/src/CommCalls.h
index c5b39411a1..5012e836b2 100644
--- a/src/CommCalls.h
+++ b/src/CommCalls.h
@@ -311,6 +311,9 @@ CommCbFunPtrCallT<Dialer>::canFire()
     if (!dialer.params.syncWithComm())
         return cancel("out of sync w/comm");
 
+    if (!dialer.handler)
+        return cancel("no callback requested");
+
     return true;
 }
 
-- 
2.47.2