DU 4.0D cdfs bug : xcd eject CDROM, even mounted.

From: Alexis POLOZOV (koss4uat_private)
Date: Fri Oct 09 1998 - 09:25:21 PDT

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    Hello,
    
    
    xcd (CD_Player for CDE users), used for playing of audio CDs "has a side
    effect of making xcd's eject button always work, even when the hardware
    eject switch is locked."
    
    I would like to add :
    Even when a cdfs filesystem is mounted.
    Even when a file reading is in progress (cp, ls, find etc.).
    Until the system is up.
    
    The author of the program considerated this as a feature.
    (See the source code is available into /usr/example/motif/xcd
    directory.)
    
    By default, you do NOT need to be root for using this command.
    
    Exploit : eject a mounted CD-ROM with xcd, insert another CDROM and ls
    -R into CDROM directory. The system will crash.
    
    DEC is informed about this problem.
    
    Workaround : "chmod" or "setld -d". :)
    
    Alex
    
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