#!/bin/sh

set -e

cd $(dirname $0)

# Rational:
# Test that su can be used to switch to root and to a normal account

# no testsuite password
# root password: rootF00barbaz
# myuser password: myuserF00barbaz

save()
{
	[ ! -d tmp ] && mkdir tmp
	for i in passwd group shadow gshadow
	do
		[ -f /etc/$i  ] && cp -dp /etc/$i  tmp/$i
		[ -f /etc/$i- ] && cp -dp /etc/$i- tmp/$i-
	done
	DATE=$(date '+%s')
	DATE=$(( DATE/3600/24 ))
	WARN=$( egrep "^PASS_WARN_AGE" /etc/login.defs | { read var val ; echo $val; } )
	saveifs=$IFS
	IFS=":"
	cat data/2/shadow |
		while read f1 f2 f3 f4 f5 f6 f7 f8 fres
		do
			echo "$f1:$f2:$DATE:$f4:$f5:$WARN:::"
		done > tmp/shadow.2
	IFS=$saveifs
}

restore()
{
	for i in passwd group shadow gshadow
	do
		[ -f tmp/$i  ] && cp -dp tmp/$i  /etc/$i  && rm tmp/$i
		[ -f tmp/$i- ] && cp -dp tmp/$i- /etc/$i- && rm tmp/$i-
	done
	rm tmp/shadow.2
	rmdir tmp
}

save

# restore the files on exit
trap 'restore' 0

for i in passwd group shadow gshadow
do
	rm -f /etc/$i
done
for i in passwd group
do
	cp -f data/1/$i /etc/
done

echo -n "pwconv "
pwconv
echo -n "checking..."
diff -au /etc/passwd  data/2/passwd
diff -au /etc/shadow  tmp/shadow.2
diff -au /etc/group   data/1/group
perms=$(stat -c "%a %u %G" /etc/shadow)
if [ "$perms" != "440 0 shadow" ]
then
	echo "Wrong mode or owners on /etc/shadow."
	exit 1
fi
if [ -f /etc/gshadow ]
then
	echo "/etc/gshadow should not exist."
	exit 1
fi
echo "OK"

echo -n "grpconv "
grpconv
echo -n "checking..."
diff -au /etc/passwd  data/2/passwd
diff -au /etc/shadow  tmp/shadow.2
diff -au /etc/group   data/2/group
diff -au /etc/gshadow data/2/gshadow
echo "OK"

echo -n "pwunconv "
pwunconv
echo -n "checking..."
diff -au /etc/passwd  data/1/passwd
if [ -f /etc/shadow ]
then
	echo "/etc/shadow should not exist. "
	exit 1
fi
diff -au /etc/group   data/2/group
diff -au /etc/gshadow data/2/gshadow
echo "OK"

echo -n "grpunconv "
grpunconv
echo -n "checking..."
diff -au /etc/passwd  data/1/passwd
if [ -f /etc/shadow ]
then
	echo "/etc/shadow should not exist. "
	exit 1
fi
diff -au /etc/group   data/1/group
if [ -f /etc/gshadow ]
then
	echo "/etc/gshadow should not exist. "
	exit 1
fi
echo "OK"