freebsd-dev/contrib/amd/scripts/am-eject.in

#!/bin/sh
# auto-unmount floppy/cd directory before ejecting device
# script taken from Debian Linux's amd
#
# Package:		am-utils-6.0
# (Additional) author:	Erez Zadok <ezk@cs.columbia.edu>

# set path
prefix=@prefix@
exec_prefix=@exec_prefix@
PATH=@sbindir@:@bindir@:/usr/ucb:/usr/bin:/bin:${PATH}
export PATH

if [ $# -ne 1 ]; then
	echo "Usage: $0 cd|cdrom|fd|floppy"
	exit 2
fi

# determine toplevel mount point of amd
fs=`amq | grep ' toplvl ' | cut -d' ' -f1`
if [ "$fs" = "" ]; then
	echo "Cannot determine amd toplevel directory"
	exit 2
fi

# append name of medium
case "$1" in
  cd|fd) fs=$fs/$1;;
  *)	 echo "Usage: $0 cd|cdrom|fd|floppy"; exit 2;;
esac

# is the medium mounted?
if amq | grep -q "^$fs" >/dev/null 2>&1; then
	# if yes, try to unmount it
	sync
	amq -u $fs
	sleep 2
	if amq | grep -q "^$fs" >/dev/null 2>&1; then
		# failed, bail out
		echo -n "Cannot unmount $fs; in use by:"
		fuser -uv -m $fs
		echo ""
		exit 1
	fi
else
	echo "$fs not mounted"
fi

case $1 in
  cd|cdrom)	eject cdrom || eject ;; # eject CD-ROM
  fd|floppy)	eject floppy || eject
		echo "Ok to remove disk" ;;
esac