From 2f7f5da4ad5bbc0eeabe17e9c69c9f000eab412f Mon Sep 17 00:00:00 2001
From: ThorstenB <brehmt@gmail.com>
Date: Mon, 26 Mar 2012 21:04:23 +0200
Subject: [PATCH] marker beacon: catch NULL pointer when runway not in navdb
 (affects incomplete/inconsistent nav data only).

---
 src/Navaids/markerbeacon.cxx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Navaids/markerbeacon.cxx b/src/Navaids/markerbeacon.cxx
index 651879961..2192ae514 100644
--- a/src/Navaids/markerbeacon.cxx
+++ b/src/Navaids/markerbeacon.cxx
@@ -51,6 +51,11 @@ FGMarkerBeaconRecord::create(int aTy, const string& aName, const SGGeod& aPos)
 {
   Type fgpTy = mapType(aTy);
   FGRunway* runway = getRunwayFromName(aName);
+  if (!runway)
+  {
+      SG_LOG(SG_GENERAL, SG_ALERT, "Failed to create beacon for unknown runway '" << aName << "'.");
+      return NULL;
+  }
   SGGeod pos(aPos);
   // fudge elevation to the runway elevation if it's not specified
   if (fabs(pos.getElevationFt()) < 0.01) {
-- 
2.39.5