chal             1684 scsi/cd.c      		dvd_copy_challenge(a->lsc.chal, &buf[4]);
chal             1729 scsi/cd.c      		dvd_copy_challenge(&buf[4], a->hsc.chal);
chal              365 sys/cdio.h     	u_int8_t chal[DVD_CHALLENGE_SIZE];
chal              379 sys/cdio.h     	u_int8_t chal[DVD_CHALLENGE_SIZE];