#include <stdio.h>#include <stdlib.h>#include <errno.h>#include <scsi/da.h>char *prg;intmain(int argc, char **argv){    SCSI *fd;    prg = argv[0];    if (argc != 2) {	fprintf(stderr, "usage: %s device\n", prg);	exit(1);    }    if ((fd=sc_open(argv[1])) == NULL) {	fprintf(stderr, "%s: can't open device %s: %s\n",		prg, argv[1], strerror(errno));	exit(1);    }        if (sc_da_prevent_allow_medium_removal(fd, 0) < 0) {	sc_fstatus(fd, stderr, prg, "allow_medium_removal", 3);	sc_close(fd);	exit(1);    }    if (sc_da_start_stop_unit(fd, 0, 1, 0) < 0) {	sc_fstatus(fd, stderr, prg, "start_stop_unit", 3);	sc_close(fd);	exit(1);    }    sc_close(fd);    exit(0);}