/usr/lib/kde4/libexec/kdeeject is in kde-runtime 4:4.8.2-0ubuntu2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | #!/bin/sh
# Script used by kdesktop to eject a removable media (CDROM/Tape/SCSI/Floppy)
# Relies on the 'eject' program, 'cdcontrol' on *BSD
#
# Copyright GPL v2 by David Faure <david@mandrakesoft.com>
#
if test $# -ge 1 -a "$1" != "--help"; then
  quiet=0
  if test "$1" = "-q"; then
    quiet=1
    shift
  fi
  # Checking for stuff in the PATH is ugly with sh.
  # I guess this is the reason for making this a kde app...
  OS=`uname -s`
  case "$OS" in
    OpenBSD)
      cdio -f $1 eject >/dev/null 2>&1
      ;;
    *BSD)
      dev=`echo $1 | sed -E -e 's#/dev/##' -e 's/([0-9])./\1/'`
      cdcontrol -f $dev eject >/dev/null 2>&1
      ;;
    *)
      eject $1 >/dev/null 2>&1
      ;;
  esac
  if test $? -eq 0; then
    qdbus org.kde.kdesktop /Desktop refreshIcons
    exit 0
  elif test $quiet -eq 0; then
    kdialog --title "KDE Eject" --error "Eject $1 failed!"
  fi
else
  kdialog --title "KDE Eject" --msgbox "Usage: $0 <name> where name is a device or a mountpoint."
fi
exit 1
 |