#!/bin/sh

set -e

cd $(dirname $0)

. ../../../common/config.sh
. ../../../common/log.sh

log_start "$0" "usermod does not create /var/log/lastlog"

save_config

# restore the files on exit
trap 'log_status "$0" "FAILURE"; restore_config' 0

change_config

echo -n "Create an empty /var/log/lastlog (it will not be restored)..."
touch /var/log/lastlog
echo "OK"

echo -n "Trigger a connection as foo..."
./login.exp
echo "OK"

lastlog > tmp/lastlog.out

echo "lastlog :"
echo "======================================================================="
cat tmp/lastlog.out
echo "======================================================================="

echo -n "Manually delete the user foo (to keep the lastlog entry)..."
sed -e '/^foo:/d' -i /etc/passwd
sed -e '/^foo:/d' -i /etc/shadow
sed -e '/^foo:/d' -i /etc/group
sed -e '/^foo:/d' -i /etc/gshadow
echo "OK"

echo -n "Change the user's UID to reuse foo's (usermod -u 1000 bar)..."
usermod -u 1000 bar
echo "OK"

echo -n "Check the passwd file..."
../../../common/compare_file.pl data/passwd /etc/passwd
echo "OK"
echo -n "Check the group file..."
../../../common/compare_file.pl data/group /etc/group
echo "OK"
echo -n "Check the shadow file..."
../../../common/compare_file.pl data/shadow /etc/shadow
echo "OK"
echo -n "Check the gshadow file..."
../../../common/compare_file.pl config/etc/gshadow /etc/gshadow
echo "OK"

lastlog > tmp/lastlog.out2

echo "lastlog:"
echo "======================================================================="
cat tmp/lastlog.out2
echo "======================================================================="

echo -n "Check the lastlog message..."
sed -e '/^foo /d' -i tmp/lastlog.out
diff -au tmp/lastlog.out tmp/lastlog.out2
echo "lastlog message OK."
rm -f tmp/lastlog.out tmp/lastlog.out2

log_status "$0" "SUCCESS"
restore_config
trap '' 0