unix-privesc-check/lib/misc/permission
2012-12-20 15:42:13 -07:00

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#!/bin/sh
# $Revision: 281 $
#
# 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/>
#
# Supports: Linux
if [ -z "${permissionincluded}" ]
then
permissionincluded=1
. lib/misc/validate
permission_is_owner_readable () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^.r........$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
permission_is_owner_writable () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^..w.......$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
permission_is_owner_executable () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^...x......$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
permission_is_group_readable () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^....r.....$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
permission_is_group_writable () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^.....w....$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
permission_is_group_executable () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^......x...$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
permission_is_world_readable () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^.......r..$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
permission_is_world_writable () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^........w.$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
permission_is_world_writable_sticky_bit () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^........wt$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
permission_is_world_executable () {
permissions="${1}"
[ "`validate_is_string \"${permissions}\"`" ] || false
if [ -n "`printf -- \"${permissions}\" | egrep -- \"^.........x$\"`" ]
then
printf -- "1\n"
else
printf -- "0\n"
fi
}
fi