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|
#! /bin/sh
set -e
# Make sure we should be running...
case "$1" in
configure)
# continue below
;;
abort-upgrade|abort-remove|abort-deconfigure)
exit 0
;;
*)
echo "postinst called with unknown argument \$1" >&2
exit 0
;;
esac
#DEBHELPER#
grep '^[[:space:]]*/' /etc/shells |
while read shell
do
dirname $shell
done |
sort -u |
while read dir
do
#
# cd to lshells directory, note that /lshell may already be present in
# /etc/shells
#
if [ "x`basename $dir`" = "xlshells" ]
then
# just in case
mkdir $dir/lshells 2>/dev/null || true
cd $dir
else
# can't assume to have all lshell dirs installed!
mkdir $dir/lshells 2>/dev/null || true
cd $dir/lshells
fi
grep '^[[:space:]]*/' /etc/shells |
grep "^[[:space:]]*$dir" |
while read shell
do
#
# finally create the link
#
ln -sf /usr/bin/lshell `basename $shell`
done
done
cat << EOF
To enable lshell you have to add lshell to the path of the login shells in
\`/etc/passwd'. You should also change the path in \`/etc/shells' to make
sure the user does not switch back to an unprotected shell.
Note, that each user with a protected shell will have set his resource
limits according to /etc/lshell.conf.
EOF
while true
do
echo -n "Shall I make these adjustments for you? [y/N] "
read input
if [ $input = "n" -o $input = "N" ]
then
exit 0
elif [ ! $input ]
then
exit 0
elif [ $input = "y" -o $input = "Y" ]
then
break
else
echo "Please answer \`Y' or \`N'."
fi 2>/dev/null
done
echo "Changing all login shells (except for uids 0-99) that are listed in /etc/shells"
sed -n '/^\//q;1,/^\//p' /etc/shells > /etc/shells.tmp
grep '^[[:space:]]*/' /etc/shells |
while read shell; do
dir=`dirname $shell`
if [ "x`basename $dir`" != "xlshells" ]
then
echo "`dirname $shell`/lshells/`basename $shell`" >> /etc/shells.tmp
else
echo $shell >> /etc/shells.tmp
fi
done
cp /etc/shells /etc/shells.old
cp /etc/shells.tmp /etc/shells
rm /etc/shells.tmp
cat /etc/passwd |
awk '{ FS=":"
if ( $3 < 100 ) next
if ( $7 == "" || $7 == "/bin/false" || $7 == "/bin/sync" ) next
print $1,$7
}' |
while read user shell
do
if grep $shell /etc/shells.old >/dev/null 2>&1
then
dir=`dirname $shell`
if [ "x`basename $dir`" != "xlshells" ]
then
shell="`dirname $shell`/lshells/`basename $shell`"
chsh -s $shell $user
fi
fi
done
/bin/rm -f /etc/shells.old
exit 0
|
