#!/bin/sh
# Test that we don't follow symlinks when writing to .augnew
ROOT=$abs_top_builddir/build/test-put-symlink-augnew
LENSES=$abs_top_srcdir/lenses
HOSTS=$ROOT/etc/hosts
HOSTS_AUGNEW=${HOSTS}.augnew
ATTACK_FILE=$ROOT/other/attack
rm -rf $ROOT
mkdir -p $(dirname $HOSTS)
mkdir -p $(dirname $ATTACK_FILE)
cat <<EOF > $HOSTS
127.0.0.1 localhost
EOF
touch $ATTACK_FILE
(cd $(dirname $HOSTS) && ln -s ../other/attack $(basename $HOSTS).augnew)
HOSTS_SUM=$(sum $HOSTS)
augtool --nostdinc -I $LENSES -r $ROOT --new > /dev/null <<EOF
set /files/etc/hosts/1/alias myhost
save
EOF
if [ ! -f $HOSTS -o -h $HOSTS ] ; then
echo "/etc/hosts is no longer a regular file"
exit 1
fi
if [ ! "x${HOSTS_SUM}" = "x$(sum $HOSTS)" ]; then
echo "/etc/hosts has changed"
exit 1
fi
if [ -h $HOSTS_AUGNEW ] ; then
echo "/etc/hosts.augnew is still a symlink, should be unlinked"
exit 1
fi
if ! grep myhost $HOSTS_AUGNEW >/dev/null; then
echo "/etc/hosts does not contain the modification"
exit 1
fi
if [ -s $ATTACK_FILE ]; then
echo "/other/attack now contains data, should be blank"
exit 1
fi