#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <linux/cdrom.h>

static inline void die(int code, const char* message){
    fprintf(stderr, "%s\n", message);
    exit(code);
}

int main(){
    register int fd, caps;

    if((fd = open("/dev/cdrom", O_RDONLY | O_NONBLOCK)) == -1)
        die(127, "cd_check_capabilities: Cannot open /dev/cdrom");

    if((caps = ioctl(fd, CDROM_GET_CAPABILITY)) == -1)
        die(127, "cd_check_capabilities: ioctl failed");

    printf("This drive is capable of playing CD-R: %s\n\t\t\t"
           "CD-RW: %s\n\t\t\tDVD: %s\n\t\t\tDVD-R: %s\n",
           (caps & CDC_CD_R) ? "yes" : "no",
           (caps & CDC_CD_RW) ? "yes" : "no",
           (caps & CDC_DVD) ? "yes" : "no",
           (caps & CDC_DVD_R) ? "yes" : "no");

    printf("It can open the tray: %s\n\t\tclose the tray: %s\n\t\t"
           "lock the tray: %s\n\t\tplay audio: %s\n\t\t"
           "select discs:%s\n",
           (caps & CDC_OPEN_TRAY) ? "yes" : "no",
           (caps & CDC_CLOSE_TRAY) ? "yes" : "no",
           (caps & CDC_LOCK) ? "yes" : "no",
           (caps & CDC_PLAY_AUDIO) ? "yes" : "no",
           (caps & CDC_SELECT_DISK) ? "yes" : "no");

    close(fd);
    return 0;
}