/usr/share/pyshared/smartcard/guid.py is in python-pyscard 1.6.12.1-4.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | """smartcard.guid
Utility functions to handle GUIDs as strings or list of bytes
__author__ = "http://www.gemalto.com"
Copyright 2001-2012 gemalto
Author: Jean-Daniel Aussel, mailto:jean-daniel.aussel@gemalto.com
This file is part of pyscard.
pyscard is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
pyscard 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 pyscard; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""
from struct import unpack
# guid is ulong+ushort+ushort+uchar[8]; we need a map because bytes
# are swappted for the first three
map = {0: 3, 1: 2, 2: 1, 3: 0, 4: 5, 5: 4, 6: 7, 7: 6, 8: 8, 9: 9,
10: 10, 11: 11, 12: 12, 13: 13, 14: 14, 15: 15}
def strToGUID(s):
"""Converts a GUID string into a list of bytes."""
l = []
for i in unpack('x' + '2s' * 4 + 'x' + '2s2sx' * 3 + '2s' * 6 + 'x', s):
l += [int(i, 16)]
zr = []
for i in xrange(len(l)):
zr.append(l[map[i]])
return zr
def GUIDToStr(g):
"""Converts a GUID sequence of bytes into a string."""
zr = []
for i in xrange(len(g)):
zr.append(g[map[i]])
return "{%2X%2X%2X%2X-%2X%2X-%2X%2X-%2X%2X-%2X%2X%2X%2X%2X%2X}" % tuple(zr)
if __name__ == "__main__":
"""Small sample illustrating the use of guid.py."""
import smartcard.guid
dummycardguid1 = strToGUID('{AD4F1667-EA75-4124-84D4-641B3B197C65}')
print dummycardguid1
print GUIDToStr(dummycardguid1)
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