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#! /bin/sh
set -e
# Load the debconf confmodule if it is available. It may not be because this
# package is essential and therefore can't depend on debconf directly.
if [ -f /usr/share/debconf/confmodule ]; then
. /usr/share/debconf/confmodule
fi
changes=0
askyesno () {
if [ "$DEBIAN_FRONTEND" = "noninteractive" ] ; then
a=y
return
fi
while : ; do
echo -n "$1 "
read a || true
if [ "$a" = "" ] ; then
a="y"
fi
a=`echo $a | tr A-Z a-z`
if [ "$a" = "y" ] || [ "$a" = "n" ] ; then
break
fi
echo "Illegal answer"
done
}
# A cut-down version of 'which' from debianutils.
searchpath () {
PROGRAM="$1"
IFS_SAVE="$IFS"
IFS=:
RET=1
for ELEMENT in $PATH; do
if [ -z "$ELEMENT" ]; then
ELEMENT=.
fi
if [ -f "$ELEMENT/$PROGRAM" ] && \
[ -x "$ELEMENT/$PROGRAM" ]; then
RET=0
break
fi
done
IFS="$IFS_SAVE"
return "$RET"
}
if [ ! "$1" = "configure" ] ; then
exit 0
fi
if [ ! -e /etc/passwd ] ; then
cp /usr/share/base-passwd/passwd.master /etc/passwd
fi
if [ ! -e /etc/group ] ; then
cp /usr/share/base-passwd/group.master /etc/group
fi
if [ "$2" = "3.2.2" ] && [ -f /etc/passwd.org ] ; then
cat <<EOF
You are upgrading from version 3.2.2 of base-passwd which had a nasty
bug: it swapped the uid and gid of local accounts. If you have not
fixed this problem manually I can undo the changes by restoring your
previous passwd file from the backup /etc/passwd.org.
EOF
askyesno "Should I restore your passwd? [Y/n]"
if [ "$a" = "y" ] ; then
cat /etc/passwd.org > /etc/passwd
changes=1
fi
fi
tmp=`tempfile`
if ! update-passwd --dry-run > $tmp ; then
if [ -f /usr/share/debconf/confmodule ] ; then
db_version 2.0
update-passwd --verbose
changes=1
else
cat <<EOF
update-passwd has found some differences between your system accounts
and the current Debian defaults. It is advisable to allow update-passwd
to change your system; without those changes some packages might not work
correctly. For more documentation on the Debian account policies, please
see /usr/share/doc/base-passwd/README.
The list of proposed changes is:
EOF
cat $tmp
cat <<EOF
It is highly recommended that you allow update-passwd to make these changes
(a backup file of modified files is made with the extension .org so you can
always restore the current settings).
EOF
askyesno "May I update your system? [Y/n]"
fi
if [ "$a" = "y" ] ; then
echo "Okay, I am going to make the necessary updates now"
update-passwd --verbose
changes=1
elif [ "$a" = "n" ] ; then
cat <<EOF
Okay, I will not update your system. If you want to make this update later
please check the update-passwd utility.
EOF
fi
fi
rm -f $tmp
if [ "$changes" -gt 0 ] ; then
if searchpath nscd; then
nscd -i passwd -i group || true
fi
fi
exit 0
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