#!/usr/bin/env python
#  -*- mode: python; -*-
import sys
import traceback
import getopt

from xen.util.security import ACMError, err, get_ssid

# getopt.gnu_getopt is better, but only exists in Python 2.3+.  Use
# getopt.getopt if gnu_getopt is not available.  This will mean that options
# may only be specified before positional arguments.
if not hasattr(getopt, 'gnu_getopt'):
    getopt.gnu_getopt = getopt.getopt

def usage():
    print "Usage: acm_getlabel -i domainid"
    print "  Test program illustrating the retrieval of"
    print "  label information (for domains) from Xen."
    print "  Argument is one paramter describing the domain"
    print "  for which the label is retrieved."
    print "\t -i domain_id or --domid=domain_id"
    print "  Return value:"
    print "\t none -- Error (e.g., unknown ssidref, label, or domain id)"
    print "\t (labelname, policyname, ssidref)"
    err("Usage")

try:
    domid = None
    (options, params) = getopt.gnu_getopt(sys.argv[1:], ':i:', ['domid='])
    for (k, v) in options:
        if k in ['-i', '--domid']:
            if not domid:
                domid = v
            else:
                usage()
    if not domid:
        usage()

    print get_ssid(domid)

except ACMError:
    pass
except:
    traceback.print_exc(limit=1)