1 /* $NetBSD: doioctl.c,v 1.2 2021/07/06 09:30:07 jmcneill Exp $ */
2
3 #include <sys/types.h>
4 #include <sys/ioctl.h>
5
6 #include <err.h>
7 #include <fcntl.h>
8 #include <stdio.h>
9 #include <stdlib.h>
10
11 #include "common.h"
12
13 int
main(int argc,char * argv[])14 main(int argc, char *argv[])
15 {
16 int fd, i;
17
18 if (argc != 3 && argc != 4)
19 errx(1, "args");
20
21 fd = open(argv[1], O_RDWR);
22 if (fd == -1)
23 err(1, "open");
24
25 i = atoi(argv[2]);
26
27 if (argc == 3)
28 if (ioctl(fd, INTROTOGGLE, &i) == -1)
29 err(1, "ioctl");
30 else
31 if (ioctl(fd, INTROTOGGLE_R, &i) == -1)
32 err(1, "ioctl");
33
34 printf("i is now %d\n", i);
35 }
36