closetray.c

// Copyright 2026 Marcus Müller
// SPDX-identifier: EUPL-1.2

#include <errno.h>
#include <fcntl.h>
#include <linux/cdrom.h>
#include <stdio.h>
#include <sys/ioctl.h>
int main(int argc, char *argv[]) {
  if (argc != 2) {
    fprintf(stderr, "USAGE:\n%s /dev/DEVICENAME\n", argv[0]);
    return -2;
  }
  int fd = open(argv[1], O_RDWR|O_NONBLOCK);
  if (fd == -1) {
    perror("Error opening file");
    return errno;
  }
  int retval = ioctl(fd, CDROMCLOSETRAY, 0);
  if(retval == -1) {
    perror("Error executing ioctl");
    return errno;
  }
}