secured exec context for mdl's cfgs (and pre package auto-downloader work ?)

git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@6631 e016b1c5-ed68-44aa-a2f7-31cac88cffde

source/src/command.h

@@ -87,7 +87,7 @@ enum    // function signatures for script functions, see command.cpp
     ARG_VARI
 };
 
-enum { IEXC_CORE = 0, IEXC_CFG, IEXC_PROMPT, IEXC_MAPCFG, IEXC_NUM }; // script execution context
+enum { IEXC_CORE = 0, IEXC_CFG, IEXC_PROMPT, IEXC_MAPCFG, IEXC_MDLCFG, IEXC_NUM }; // script execution context
 
 // nasty macros for registering script functions, abuses globals to avoid excessive infrastructure
 #define COMMANDN(name, fun, nargs) static bool __dummy_##fun = addcommand(#name, (void (*)())fun, nargs)

source/src/rendermodel.cpp

@@ -116,6 +116,7 @@ model *loadmodel(const char *name, int i)
     if(mm) m = *mm;
     else
     {
+        pushscontext(IEXC_MDLCFG);
         m = new md2(name);
         loadingmodel = m;
         if(!m->load())
@@ -127,9 +128,10 @@ model *loadmodel(const char *name, int i)
             {
                 delete m;
                 loadingmodel = NULL;
-                return NULL;
             }
         }
+        popscontext();
+        if(!loadingmodel) return NULL;
         loadingmodel = NULL;
         mdllookup.access(m->name(), m);
     }