#!/bin/sh
# $Revision: 261 $
#
# This program 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 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
# (c) Tim Brown, 2012
# <mailto:timb@nth-dimension.org.uk>
# <http://www.nth-dimension.org.uk/> / <http://www.machine.org.uk/>
#
# Check if privileged files drop their privileges
# Based on ideas found at http://people.redhat.com/sgrubb/security/

. lib/misc/stdio
. lib/misc/privileged
. lib/misc/binary

privileged_change_privileges_init () {
	stdio_message_log "privileged_change_privileges" "Starting at: `date`"
}

privileged_change_privileges_main () {
	privileged_list | while read filetype filename usergroupid
	do
		# TODO this needs cleaning up
		match="`binary_matches_function "${filename}" "setuid|setgid|seteuid|setegid|setresuid|setresgid|setreuid|setregid|initgroups|setgroups|setcap|setfsuid|setfsgid"`"
		if [ $match -ne 1 ]
		then
			stdio_message_warn "privileged_change_privileges" "${filetype} ${filename} (${usergroupid}) and does not attempt to change privileges"
		fi
	done
}

privileged_change_privileges_fini () {
	stdio_message_log "privileged_change_privileges" "Ending at: `date`"
}