--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/security.d/chk_pkgs	Sat Mar 31 13:32:06 2007 +0200
@@ -0,0 +1,91 @@
+#!/bin/bash
+#
+# $Id$
+#
+#############################################################################
+# Copyright (C) 2005-2007
+#   
+# Michiel Broek               <mbse@mbse.eu>
+# Beekmansbos 10
+# 1971 BV IJmuiden
+# the Netherlands
+#
+# This file is part of SlackSecCheckSripts.
+#
+# This package is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 2, or (at your option) any
+# later version.
+#
+# SlackSecCheckSripts is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with MBSE BBS; see the file COPYING.  If not, write to the Free
+# Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+#############################################################################
+
+PATH=/sbin:/usr/sbin:/bin:/usr/bin
+
+umask 077
+TZ=UTC; export TZ
+LANG=C; export LANG
+
+SECUREDIR=`mktemp -d /tmp/_securedir.XXXXXX` || exit 1
+
+trap "/bin/rm -rf $SECUREDIR ; exit 0" EXIT INT QUIT PIPE
+
+if ! cd "$SECUREDIR"; then
+    echo "Can not cd to $SECUREDIR".
+    exit 1
+fi
+
+backup_dir=/var/cache/sscs
+pkgdb_dir=/var/log/packages
+
+mkdir -p "$backup_dir"
+
+CURR=${backup_dir}/pkgs.current
+BACK=${backup_dir}/pkgs.backup
+TMP1=$SECUREDIR/tmp1
+TMP2=$SECUREDIR/tmp2
+
+if [ ! -f $CURR ]; then
+    # No database, install new database
+    ( cd $pkgdb_dir
+      /bin/ls -ld --full-time * | sort -k9 > $CURR
+    )
+    exit
+fi
+
+# Database is present, create temp database
+#
+( cd $pkgdb_dir
+  /bin/ls -ld --full-time * | sort -k9 > $TMP1
+)
+changed=0
+
+join -v 1 -j 9 $TMP1 $CURR > $TMP2
+if [ -s $TMP2 ]; then
+    printf "\nNew installed packages:\n"
+    cat $TMP2 | awk '{ printf "\t%s\n", $1 }'
+    changed=1
+fi
+
+join -v 1 -j 9 $CURR $TMP1 > $TMP2
+if [ -s $TMP2 ]; then
+    printf "\nRecent removed packages:\n"
+    cat $TMP2 | awk '{ printf "\t%s\n", $1 }'
+    changed=1
+fi
+
+
+# If changes were seen, update the database
+#
+if [ "$changed" == "1" ]; then
+    cat $CURR > $BACK
+    cat $TMP1 > $CURR
+fi
+