From 47ef9726122c525cf79e09246416ae7351c1f638 Mon Sep 17 00:00:00 2001
From: Guido Vranken <guidovranken@gmail.com>
Date: Mon, 26 Jun 2017 20:29:34 +0200
Subject: [PATCH] Prepare mroute.c, mroute.h for fuzzing

---
 src/openvpn/mroute.c | 9 +++++++--
 src/openvpn/mroute.h | 2 --
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/openvpn/mroute.c b/src/openvpn/mroute.c
index 7b46a6a2d..b670d9188 100644
--- a/src/openvpn/mroute.c
+++ b/src/openvpn/mroute.c
@@ -373,7 +373,9 @@ mroute_addr_mask_host_bits(struct mroute_addr *ma)
     }
     else
     {
-        ASSERT(0);
+        /* Disabled for fuzzing
+         * ASSERT(0);
+        */
     }
 }
 
@@ -545,7 +547,10 @@ mroute_helper_del_iroute46(struct mroute_helper *mh, int netbits)
         ASSERT(netbits < MR_HELPER_NET_LEN);
         ++mh->cache_generation;
         --mh->net_len_refcount[netbits];
-        ASSERT(mh->net_len_refcount[netbits] >= 0);
+        if ( !(mh->net_len_refcount[netbits] >= 0) )
+        {
+            return;
+        }
         if (!mh->net_len_refcount[netbits])
         {
             mroute_helper_regenerate(mh);
diff --git a/src/openvpn/mroute.h b/src/openvpn/mroute.h
index e57a9506e..5917c7d95 100644
--- a/src/openvpn/mroute.h
+++ b/src/openvpn/mroute.h
@@ -96,7 +96,6 @@ struct mroute_addr {
             in_addr_t addr;     /* _network order_ IPv4 address */
         } v4mappedv6;
     }
-#ifndef HAVE_ANONYMOUS_UNION_SUPPORT
 /* Wrappers to support compilers that do not grok anonymous unions */
         mroute_union
 #define raw_addr mroute_union.raw_addr
@@ -104,7 +103,6 @@ struct mroute_addr {
 #define v4 mroute_union.v4
 #define v6 mroute_union.v6
 #define v4mappedv6 mroute_union.v4mappedv6
-#endif
     ;
 };
 
-- 
2.47.2