From 45eef63a35f27a522e4c3e24f2511593bffb987c Mon Sep 17 00:00:00 2001
From: Juan Lang <juan.lang@gmail.com>
Date: Thu, 30 Aug 2007 17:49:52 -0700
Subject: [PATCH] crypt32: Add a default cycle detection modulus.

---
 dlls/crypt32/chain.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/dlls/crypt32/chain.c b/dlls/crypt32/chain.c
index cfe05b323fa..f1711acc9eb 100644
--- a/dlls/crypt32/chain.c
+++ b/dlls/crypt32/chain.c
@@ -25,6 +25,8 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
 
+#define DEFAULT_CYCLE_MODULUS 7
+
 static HCERTCHAINENGINE CRYPT_defaultChainEngine;
 
 /* This represents a subset of a certificate chain engine:  it doesn't include
@@ -149,7 +151,10 @@ BOOL WINAPI CertCreateCertificateChainEngine(PCERT_CHAIN_ENGINE_CONFIG pConfig,
             engine->dwUrlRetrievalTimeout = pConfig->dwUrlRetrievalTimeout;
             engine->MaximumCachedCertificates =
              pConfig->MaximumCachedCertificates;
-            engine->CycleDetectionModulus = pConfig->CycleDetectionModulus;
+            if (pConfig->CycleDetectionModulus)
+                engine->CycleDetectionModulus = pConfig->CycleDetectionModulus;
+            else
+                engine->CycleDetectionModulus = DEFAULT_CYCLE_MODULUS;
             *phChainEngine = (HCERTCHAINENGINE)engine;
             ret = TRUE;
         }