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#!/usr/bin/env python
#
# Script used for running executables with custom labels, as well as custom uid/gid
# Process label is changed by writing to /proc/self/attr/curent
#
# Script expects user id and group id to exist, and be the same.
#
# From adduser manual:
# """By default, each user in Debian GNU/Linux is given a corresponding group
# with the same name. """
#
# Usage: root@desk:~# python notroot.py <uid> <label> <full_path_to_executable> [arguments ..]
# eg: python notroot.py 1000 User::Label /bin/ping -c 3 192.168.1.1
#
# Author: Alexandru Cornea <alexandru.cornea@intel.com>
import os
import sys
try:
uid = int(sys.argv[1])
sys.argv.pop(1)
label = sys.argv[1]
sys.argv.pop(1)
open("/proc/self/attr/current", "w").write(label)
path=sys.argv[1]
sys.argv.pop(0)
os.setgid(uid)
os.setuid(uid)
os.execv(path,sys.argv)
except Exception,e:
print e.message
sys.exit(1)
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