/* $NetBSD: tvctrl.c,v 1.4 1999/01/13 10:23:40 itohy Exp $ */ #include #include #include #include #include #include int main __P((int, char *[])); int main(argc, argv) int argc; char *argv[]; { unsigned long num; unsigned char ctl; char *ep; if (argc < 2) { fprintf(stderr, "usage: %s control_number [...]\n", argv[0]); return 1; } while (argv++, --argc != 0) { num = strtoul(argv[0], &ep, 10); if (num > 255 || *ep != '\0') errx(1, "illegal number -- %s", argv[0]); ctl = num; if (ioctl(0, ITETVCTRL, &ctl)) err(1, "ioctl(ITETVCTRL)"); } return 0; }