sys/arch/x68k/usr.bin/tvctrl/tvctrl.c

   1 /*      $NetBSD: tvctrl.c,v 1.6.2.3 2004/09/21 13:24:21 skrll Exp $     */
   2
   3 #include <sys/cdefs.h>
   4 __RCSID("$NetBSD: tvctrl.c,v 1.6.2.3 2004/09/21 13:24:21 skrll Exp $");
   5
   6 #include <sys/types.h>
   7 #include <sys/ioctl.h>
   8 #include <machine/iteioctl.h>
   9 #include <err.h>
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12
  13 int main(int, char *[]);
  14
  15 int
  16 main(int argc, char *argv[])
  17 {
  18         unsigned long num;
  19         unsigned char ctl;
  20         char *ep;
  21
  22         if (argc < 2) {
  23                 fprintf(stderr, "usage: %s control_number [...]\n", argv[0]);
  24                 return 1;
  25         }
  26         while (argv++, --argc != 0) {
  27                 num = strtoul(argv[0], &ep, 10);
  28                 if (num > 255 || *ep != '\0')
  29                         errx(1, "illegal number -- %s", argv[0]);
  30
  31                 ctl = num;
  32                 if (ioctl(0, ITETVCTRL, &ctl))
  33                         err(1, "ioctl(ITETVCTRL)");
  34         }
  35
  36         return 0;
  37 }