#!/usr/bin/env python

#

# Seccomp Library test program

#

# Copyright (c) 2012 Red Hat <pmoore@redhat.com>

# Author: Paul Moore <paul@paul-moore.com>

#

#

# This library is free software; you can redistribute it and/or modify it

# under the terms of version 2.1 of the GNU Lesser General Public License as

# published by the Free Software Foundation.

#

# This library 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 Lesser General Public License

# for more details.

#

# You should have received a copy of the GNU Lesser General Public License

# along with this library; if not, see <http://www.gnu.org/licenses>.

#

import argparse

import sys

import util

from seccomp import *

def test(args):

    f = SyscallFilter(KILL)

    # the next three seccomp_rule_add_exact() calls for read must go together

    # in this order to catch an infinite loop.

    f.add_rule(ALLOW, "read", Arg(0, EQ, sys.stdout.fileno()))

    f.add_rule(ALLOW, "read", Arg(1, EQ, 0))

    f.add_rule(ALLOW, "read", Arg(0, EQ, sys.stdin.fileno()))

    return f

args = util.get_opt()

ctx = test(args)

util.filter_output(args, ctx)

# kate: syntax python;

# kate: indent-mode python; space-indent on; indent-width 4; mixedindent off;