xstrtol
newis.height = xstrtol(optarg);
newib.pitch = xstrtol(optarg);
newib.msec = xstrtol(optarg);
newib.volume = xstrtol(optarg);
newis.width = xstrtol(optarg);
newis.x = xstrtol(optarg);
newis.y = xstrtol(optarg);
val = xstrtol(*argv++);
long xstrtol(char *);
newis.depth = xstrtol(optarg);