added a CLI debugger

nse_init.cc

@@ -30,6 +30,7 @@ int init_fetchfile(char *result, size_t result_max_len, char* file);
 int init_fetchfile_absolute(char *path, size_t path_len, char *file);
 int init_updatedb(lua_State* l);
 int init_pick_default_categories(std::vector<std::string>& chosenScripts);
+int init_debugger(lua_State* l);
 
 int check_extension(const char* ext, const char* path);
 
@@ -58,15 +59,34 @@ int init_lua(lua_State* l) {
 		SCRIPT_ENGINE_LUA_TRY(lua_pcall(l, 1, 0, 0));
 	}
 
-
 	/* publish the nmap bindings to the script */
 	lua_newtable(l);
 	SCRIPT_ENGINE_TRY(set_nmaplib(l));
 	lua_setglobal(l, "nmap");
 	SCRIPT_ENGINE_TRY(init_setlualibpath(l));
+
+	SCRIPT_ENGINE_TRY(init_debugger(l));
+	
 	return SCRIPT_ENGINE_SUCCESS;
 }
 
+int init_debugger(lua_State* l) {
+
+	if(o.scriptdebug > 0) {
+		luaL_loadstring(l, "require 'debugger'");
+		SCRIPT_ENGINE_TRY(lua_pcall(l, 0, 0, 0));
+	} else {
+		char* debugger_dummy = "\
+package.loaded['debugger'] = true\n\
+pause = function() end\n";
+
+		luaL_loadstring(l, debugger_dummy);
+		SCRIPT_ENGINE_TRY(lua_pcall(l, 0, 0, 0));
+	}
+
+	return SCRIPT_ENGINE_SUCCESS;	
+}
+
 /*sets two variables, which control where lua looks for modules (implemented in C or lua */
 int init_setlualibpath(lua_State* l){
 	char path[MAX_FILENAME_LEN];