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# Copyright 2009 Nick White
#
# 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.
#
# See <http://www.gnu.org/licenses/> for a copy of the GNU General
# Public License.
### default variables ###
[ -z "$CDMOUNT" ] && export CDMOUNT="/media/cdrom"
### functions ###
function checkcd
{
# usage: checkcd md5sum md5file
checksum=$(md5sum $2 2>/dev/null|awk '{print $1}')
if [ "$checksum" != "$1" ]; then
return 1
fi
return 0
}
function getcd
{
# usage: getcd cdnum [md5sum] [md5file]
# note we're redirecting to stderr to ensure questions
# are always shown
if [ $# -ge 3 ]; then
answer=""
while [ $(checkcd $2 $CDMOUNT/$3; echo $?) -ne 0 ]; do
echo " * Insert CD $1 and press any key, or press 'c' to continue without checking" 1>&2
read -sn 1 answer
if [ "$answer" == 'c' ]; then
return 0
fi
done
else
echo "* Please insert CD $1 and press any key" 1>&2
read -sn 1
fi
return 0
}
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