drive_open_disk
int drive_open_disk(disk_t *diskp, char *opath, int len);
fd = drive_open_disk(dp, NULL, 0);
fd = drive_open_disk(dp, NULL, 0);
fd = drive_open_disk(dp, NULL, 0);
fd = drive_open_disk(dp->p.disk, opath, sizeof (opath));
if ((fd = drive_open_disk(diskp, NULL, 0)) >= 0) {
fd = drive_open_disk(dp->p.disk, NULL, 0);
if ((fd = drive_open_disk(media[i]->p.disk, NULL, 0)) < 0) {
if ((fd = drive_open_disk(dp, NULL, 0)) >= 0) {
if ((fd = drive_open_disk(desc->p.disk, NULL, 0)) < 0) {
if ((fd = drive_open_disk(dp, NULL, 0)) >= 0) {
if ((fd = drive_open_disk(diskp, NULL, 0)) < 0) {