/* from linux 2.1.x kernel sources.. with small changes by kreator, 1998 */
#include <fcntl.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <syslog.h>
#include <unistd.h>

#define LPTRUSTIRQ  0x060f

int main(int argc, char **argv)
{
        int fd=open("/dev/lp0", O_RDONLY);
        ioctl(fd, LPTRUSTIRQ, argc - 1);
	openlog(argv[0], LOG_PID, LOG_LPR);
        if (argc-1)
                syslog(LOG_LPR|LOG_INFO, "trusting the irq\n");
        else
                syslog(LOG_LPR|LOG_INFO, "untrusting the irq\n");
	closelog();
	close(fd);
        return 0;
}