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#!/usr/bin/env python
#
# pypaxctl: this file is part of the elfix package
# Copyright (C) 2011, 2012 Anthony G. Basile
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
#
import sys
import getopt
import pax
xattr_available = True
try:
from pax import deletextpax
except ImportError:
deletextpax = ''
xattr_available = False
def run_usage():
print('Package Name : elfix')
print('Bug Reports : http://bugs.gentoo.org/')
print('Program Name : pypaxctl')
xattr_message = '''Description : Get/set/delete PT_PAX or XATTR_PAX flags on an ELF object
Usage : pypaxctl -g ELF get XATTR_PAX flags first, else get PT_PAX flags
: pypaxctl -s [-PpEeMmRrSs] ELF set PT_PAX and XATTR_PAX flags whenever possible
: pypaxctl -d ELF delete the XATTR_PAX field'''
if xattr_available:
print(xattr_message)
else:
print('Description : Get/set PT_PAX flags on an ELF object')
print('')
print('Usage : pypaxctl -g ELF get PT_PAX flags')
print(' : pypaxctl -s [-PpEeMmRrSs] ELF set PT_PAX flags whenever possible')
print('')
print('Note : Python module pax.so was compiled without XATTR_PAX support')
print('')
def main():
try:
if xattr_available:
opts, args = getopt.getopt(sys.argv[1:], 'gs:d')
else:
opts, args = getopt.getopt(sys.argv[1:], 'gs:')
except getopt.GetoptError as err:
print(err)
sys.exit(1)
if (len(opts) != 1) or (len(args) < 1):
run_usage()
sys.exit(1)
for o, a in opts:
if o == '-g':
for elf in args:
(str_flags, bin_flags) = pax.getflags(elf)
print('%s' % str_flags)
elif o == '-s':
for elf in args:
pax.setstrflags(elf, a)
# Don't worry if xattr_available = False
# because we can't get here if it is.
else:
for elf in args:
try:
pax.deletextpax(elf)
except pax.PaxError:
print('pax_deletextpax: XATTR_PAX not supported')
sys.exit(1)
if __name__ == '__main__':
main()
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