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#!/usr/bin/ksh
###############################################################################
#
# Module: login_enable.sh
# Author: Peter R. Schmidt
# Description: Enable Unix and Elite-for-Windows logins
#
# Change Log
#
# Date Name Description.................
# 10/28/01 Peter R. Schmidt Start Program
#
###############################################################################
CRITICAL="root informix"
SYSTEM="root daemon bin sys adm uucp lp nuucp hpdb nobody"
if [ $LOGNAME != 'root' ]; then
echo "Sorry - you must be logged on a 'root' to run this program."
exit 1
fi
. /elite/custom/run.elite
DISABLE=/usr/local/custom/login_disable
if [ ! -f $DISABLE ]
then
echo
echo "NOTE: Unix login was ALREADY enabled"
exit 0
fi
#-------------------------------------------------------------------------------
CUSTOM=/usr/local/custom
PASSWD=/etc/passwd
PASSWD_BACKUP=/etc/passwd.DISABLE
PASSWD_PREVIOUS=/etc/passwd.DISABLE.PREVIOUS
if [ ! -d $CUSTOM ]; then
echo "Error: $CUSTOM does not exist."
exit 1
fi
if [ ! -f $PASSWD ]; then
echo "Error: $PASSWD does not exist."
exit 1
fi
if [ ! -w $PASSWD ]; then
echo "Error: $PASSWD is not writable - which is required for this program."
exit 1
fi
if [ ! -f $PASSWD_BACKUP ]; then
echo "Error: $PASSWD_BACKUP does not exist!"
echo "This could be a serious problem."
exit 1
fi
#-------------------------------------------------------------------------------
# Check integrity of backup file
echo
echo "Checking integrity of the passwd backup..."
echo
for LOGIN in $SYSTEM
do
CNT=`egrep -c "^${LOGIN}:" $PASSWD_BACKUP`
if [ $CNT != 1 ]; then
echo "Error: for some reason, the login for $LOGIN was not in the $PASSWD_BACKUP file"
echo "or exists more then once."
echo "This suggests we should NOT overwrite the $PASSWD file with the $PASSWD_BACKUP file."
echo "Program terminated!"
exit 1
fi
done
for LOGIN in $CRITICAL
do
CNT=`egrep -c "^${LOGIN}:" $PASSWD_BACKUP`
if [ $CNT != 1 ]; then
echo "Error: for some reason, the login for $LOGIN was not in the $PASSWD_BACKUP file"
echo "or exists more then once."
echo "This suggests we should NOT overwrite the $PASSWD file with the $PASSWD_BACKUP file."
echo "Program terminated!"
exit 1
fi
done
WC_PASSWD=`cat $PASSWD | wc -l`
WC_BACKUP=`cat $PASSWD_BACKUP | wc -l`
if [ $WC_PASSWD -ge $WC_BACKUP ]; then
echo "The $PASSWD is bigger then the $PASSWD_BACKUP file."
echo "This is unexpected and should be checked out and corrected before proceeding."
exit 1
fi
#-------------------------------------------------------------------------------
# All checks passwd - re-enable all logins
echo "Restoring original passwd from backup..."
echo
rm -f $PASSWD_PREVIOUS
cp -p $PASSWD $PASSWD_PREVIOUS # Save the old passwd file - just in case
cp -p $PASSWD_BACKUP $PASSWD # Restore from backup
rm -f $PASSWD_BACKUP
rm -f $DISABLE
UDATE=`date`
echo "Unix login is ENABLED"
echo "by $LOGNAME on $UDATE"
################################################################################
]]>