prevent a segfault in case a bsp file has zero nodes (happens on broken input to...

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@10778 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=5e3093c90aec7351f328c2fca255c9e5ee774f2a

diff --git a/model_brush.c b/model_brush.c
index 5b1b3712ac30849cc85b2dbca83f45f367fa74f9..256125e8b421677e724290c17b36d269359c050d 100644 (file)
--- a/model_brush.c
+++ b/model_brush.c
@@ -2565,6 +2565,8 @@ static void Mod_Q1BSP_LoadNodes(lump_t *l)
        if (l->filelen % sizeof(*in))
                Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
        count = l->filelen / sizeof(*in);
+       if (count == 0)
+               Host_Error("Mod_Q1BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
        out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
 
        loadmodel->brush.data_nodes = out;
@@ -5499,6 +5501,8 @@ static void Mod_Q3BSP_LoadNodes(lump_t *l)
        if (l->filelen % sizeof(*in))
                Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
        count = l->filelen / sizeof(*in);
+       if (count == 0)
+               Host_Error("Mod_Q3BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
        out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
 
        loadmodel->brush.data_nodes = out;