/******************************************************************************/ /* */ /* Copyright (c) International Business Machines Corp., 2001 */ /* Jan 8 2003 - Created - Manoj Iyer manjo@mail.utexas.edu */ /* */ /* This program is free software; you can redistribute it and/or modify */ /* it under the terms of the GNU General Public License as published by */ /* the Free Software Foundation; either version 2 of the License, or */ /* (at your option) any later version. */ /* */ /* This program is distributed in the hope that it will be useful, but */ /* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY */ /* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License */ /* for more details. */ /* */ /* You should have received a copy of the GNU General Public License */ /* along with this program; if not, write to the Free Software Foundation, */ /* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /******************************************************************************/ /* * * Description: This program checks the status of the cdrom drive, it will * return the status as to if the cdrom device is open or is * ready for use. */ #include <sys/stat.h> #include <fcntl.h> #include <linux/cdrom.h> #include <sys/ioctl.h> #include <stdlib.h> /* * Exit Vaules: * 0 - No information. * 1 - No disk in the drive. * 2 - CD tray is open. * 3 - CD drive not ready. * 4 - CD disk in drive & drive closed. */ int main(int argc, char *argv[]) { int fd; if (argc != 2) exit(-1); if ((fd = open(argv[1], O_RDONLY | O_NONBLOCK)) == -1) exit(-2); exit(ioctl(fd, CDROM_DRIVE_STATUS)); }