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View File Name : base-passwd.postinst

#! /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