+int arg_to_rlimit(lua_State* L, int idx, rlim_t current) {
+ switch(lua_type(L, idx)) {
+ case LUA_TSTRING:
+ if(strcmp(lua_tostring(L, idx), "unlimited") == 0)
+ return RLIM_INFINITY;
+ case LUA_TNUMBER:
+ return lua_tointeger(L, idx);
+ case LUA_TNONE:
+ case LUA_TNIL:
+ return current;
+ default:
+ return luaL_argerror(L, idx, "unexpected type");
+ }
+}
+